VERSIÓ 1.4.1

- [NEW] Ara require soporta rutes relatives (he tingut que fer un parxe al codi de Lua)

.gitignore

@@ -5,3 +5,4 @@ mini_debug
 .vscode/*
 info.plist
 *.dll
+build/*

Makefile

@@ -3,25 +3,25 @@ source = *.cpp ./lua/*.c
 
 windows:
 	@echo off
-	g++ $(source) icon.res -Wall -Os -ffunction-sections -fdata-sections -Wl,--gc-sections -lmingw32 -lSDL2main -lSDL2 -mwindows -o "$(executable).exe"
+	g++ $(source) icon.res -Wall -Os -ffunction-sections -fdata-sections -Wl,--gc-sections -lmingw32 -lSDL3 -lopengl32 -mwindows -o "$(executable).exe"
 	strip -s -R .comment -R .gnu.version --strip-unneeded "$(executable).exe"
 
 windows_debug:
 	@echo off
-	g++ $(source) -D DEBUG -g -Wall -Os -lmingw32 -lSDL2main -lSDL2 -o "$(executable)_debug.exe"
+	g++ $(source) -D DEBUG -g -Wall -Os -lmingw32 -lSDL3 -lopengl32 -o "$(executable)_debug.exe"
 
 macos:
-	clang++ $(source) -Wall -Os -std=c++11 -ffunction-sections -fdata-sections -lSDL2 -o "$(executable)"
+	clang++ $(source) -Wall -Os -std=c++11 -ffunction-sections -fdata-sections -lSDL3 -o "$(executable)"
 
 macos_debug:
-	clang++ $(source) -D DEBUG -g -Wall -Os -std=c++11 -ffunction-sections -fdata-sections -lSDL2 -o "$(executable)_debug"
+	clang++ $(source) -D DEBUG -g -Wall -Os -std=c++11 -ffunction-sections -fdata-sections -lSDL3 -o "$(executable)_debug"
 
 macos_bundle:
-	clang++ $(source) -D MACOS_BUNDLE -Wall -Os -std=c++11 -framework SDL2 -F /Library/Frameworks -ffunction-sections -fdata-sections -o mini_bundle -rpath @executable_path/../Frameworks/ -target x86_64-apple-macos10.12
+	clang++ $(source) -D MACOS_BUNDLE -Wall -Os -std=c++11 -framework SDL3 -F /Library/Frameworks -ffunction-sections -fdata-sections -o mini_bundle -rpath @executable_path/../Frameworks/ -target x86_64-apple-macos10.12
 
 linux:
-	g++ $(source) -D LUA_USE_LINUX -Wall -Os -ffunction-sections -fdata-sections -Wl,--gc-sections -lSDL2 -o "$(executable)"
+	g++ $(source) -D LUA_USE_LINUX -Wall -Os -ffunction-sections -fdata-sections -Wl,--gc-sections -lSDL3 -lGL -o "$(executable)"
 	strip -s -R .comment -R .gnu.version --strip-unneeded "$(executable)"
 
 linux_debug:
-	g++ $(source) -D LUA_USE_LINUX -D DEBUG -g -Wall -lSDL2 -o "$(executable)_debug"
+	g++ $(source) -D LUA_USE_LINUX -D DEBUG -g -Wall -lSDL3 -lGL -o "$(executable)_debug"

data/game.ini

@@ -1,5 +1,5 @@
-title=HOLA MINI
-config=minitest
-width=160
-height=120
-zoom=3
+title=TESTS
+config=minitests
+width=400
+height=300
+zoom=2

data/gbc.glsl

@@ -0,0 +1,38 @@
+varying vec2 tex_coord;
+varying vec2 pix_coord;
+
+#if defined(VERTEX)
+
+void main()
+{
+	pix_coord = vec2(gl_MultiTexCoord0.x, 1.0-gl_MultiTexCoord0.y)*1.0001;
+	tex_coord = vec2((gl_Vertex.x+1.0)*0.5, (-gl_Vertex.y+1.0)*0.5);
+	vec4 pos = vec4(gl_Vertex.x * 2.0, gl_Vertex.y * 2.0, gl_Vertex.z, gl_Vertex.w);
+	gl_Position = gl_Vertex; //(gl_Vertex*2)-vec3(1.0, 1.0, 1.0);//gl_ModelViewProjectionMatrix * gl_Vertex;
+}
+
+#elif defined(FRAGMENT)
+
+uniform sampler2D Texture;
+
+void main()
+{
+	float x = sign(pix_coord.x)*floor(abs(pix_coord.x)+0.5);
+	float y = sign(pix_coord.y)*floor(abs(pix_coord.y)+0.5);
+	float column = mod(x,4.0);
+	float row = mod(y,4.0);
+	vec4 color = texture2D(Texture, tex_coord);
+	vec4 newcolor;
+	if ((column == 0.0) || (row == 0.0) ) {
+		newcolor = color * vec4(0.4, 0.4, 0.4, 1.0);
+	} else if ((column == 1.0) || (row == 1.0) ) {
+		newcolor = color * vec4(0.6, 0.7, 0.8, 1.0);
+	} else if ((column == 3.0) || (row == 3.0) ) {
+		newcolor = color * vec4(0.8, 0.7, 0.6, 1.0);
+	} else {
+		newcolor = color;
+	}
+	gl_FragColor = newcolor;
+}
+
+#endif

data/ia/other.lua

@@ -0,0 +1,9 @@
+require "ia.test"
+
+other = {
+	peiv = function()
+		pal.color(1, 1, 1, 1)
+		test2()
+		return "HOLA OTHER UNIT"
+	end
+}

data/ia/test.lua

@@ -0,0 +1,3 @@
+function test2()
+    draw.text("THIS WORKS!",1,140,4)
+end

data/lynx.glsl

@@ -0,0 +1,41 @@
+varying vec2 tex_coord;
+varying vec2 pix_coord;
+
+#if defined(VERTEX)
+
+void main()
+{
+	pix_coord = vec2(gl_MultiTexCoord0.x, 1.0-gl_MultiTexCoord0.y)*1.0001;
+	tex_coord = vec2((gl_Vertex.x+1.0)*0.5, (-gl_Vertex.y+1.0)*0.5);
+	vec4 pos = vec4(gl_Vertex.x * 2.0, gl_Vertex.y * 2.0, gl_Vertex.z, gl_Vertex.w);
+	gl_Position = gl_Vertex; //(gl_Vertex*2)-vec3(1.0, 1.0, 1.0);//gl_ModelViewProjectionMatrix * gl_Vertex;
+}
+
+#elif defined(FRAGMENT)
+
+uniform sampler2D Texture;
+
+void main()
+{
+	float x = sign(pix_coord.x)*floor(abs(pix_coord.x)+0.5);
+	float column = mod(x,4.0);
+	vec4 color = texture2D(Texture, tex_coord);
+	float xfade = abs((tex_coord.s * 2.0) - 1.0);
+	xfade = xfade * xfade * xfade * xfade * xfade;
+	float yfade = abs((tex_coord.t * 2.0) - 1.0);
+	yfade = yfade * yfade * yfade * yfade * yfade;
+	color = color + vec4(0.7, 0.7, 0.7, 0.0) * (1.0-tex_coord.t) * (1.0-xfade) * (1.0-yfade);
+	vec4 newcolor;
+	if (column == 0.0) {
+		newcolor = color * vec4(1.0, 0.4, 0.6, 1.0);
+	} else if (column == 1.0) {
+		newcolor = color * vec4(0.4, 1.0, 0.4, 1.0);
+	} else if (column == 2.0) {
+		newcolor = color * vec4(0.6, 0.4, 1.0, 1.0);
+	} else {
+		newcolor = color * vec4(0.2, 0.2, 0.2, 1.0);
+	}
+	gl_FragColor = newcolor;
+}
+
+#endif

data/main.lua

@@ -1,106 +1,45 @@
-other = require "other"
+require "ia.other"
 
 x=0
 
 function mini.init()
-    text=other.peiv()
-    keyRight = tonumber(config.getKey("keyright")) or key.RIGHT
-    keyLeft = tonumber(config.getKey("keyleft")) or key.LEFT
-    mini.update=normal_update
-    --turbo(false)
-    local perico = "péricòñ"
-    print(utf8.len(perico))
-    ants = 0xc936;
-    s = surface.load("tiles01.gif")
-    --surface.source(s)
-    p = palette.load("tiles01.gif")
-    palette.set(p)
-    palette.setTransparent(255)
-    print(#p)
-    surface.save(s, "data/copy.gif")
-    s = surface.load("copy.gif")
-    --draw.source(s)
-    system.setBeat(4)
+    s = surf.load("gfx/logo.gif")
+    surf.source(s)
+    p = pal.load("gfx/logo.gif")
+    pal.set(p)
+    pal.trans(255)
+    --surf.save(s, "prova.gif", p)
+
+    print("=== PACKAGES LOADED ===")
+    for name, value in pairs(package.loaded) do
+        print(name, value)
+    end
+    print("========================")
 
 end
 
 function mini.update()
-    if keyboard.keyPressed(key.ESCAPE) then
-        system.quit()
+    surf.cls(0)
+    draw.surf(0, 0, 160, 144, 0, 0)
+
+    draw.text("PRESS START", 60, 110, 28)
+    if key.press(key.ESCAPE) then sys.quit() end
+    draw.text(sys.fps(), 1, 1, 28)
+
+    if key.press(key.N1) then
+        shader.init("lynx.glsl")
+        shader.enable()
+    end
+    if key.press(key.N2) then
+        shader.init("gbc.glsl")
+        shader.enable()
+    end
+    if key.press(key.N3) then
+        shader.disable()
     end
 
-    if system.isBeat() then
-        ants = (ants >> 12) | ((ants<<4)&0xffff)
-    end
-    surface.cls(5)
-    draw.surface(s, 0, 0, 64, 64, 10, 10)
-    draw.rect(10, 10, 73, 73, 8)
-    draw.setPattern(ants)
-    draw.rect(10, 10, 73, 73, 0)
-
-    draw.setPattern(0xffff)
-    --draw.text(#p,0,0,2)
+    local mx, my = mouse.pos()
+    draw.rectf(mx, my, 4, 4, 8)
+    draw.text(mx .. " " .. my, 1, 8, 8)
+    draw.text(other.peiv(),1,100,4)
 end
-
-function normal_update()
-    if keyboard.keyPressed(key.RIGHT) then x=x+1 end
-    if keyboard.keyPressed(key.LEFT) then x=x-1 end
-    if keyboard.keyPressed(key.SPACE) then
-        redefinekeys.init()
-    end
-    if keyboard.keyPressed(key.ESCAPE) then
-        system.quit()
-    end
-
-    if keyboard.keyPressed(key.F2) or mouse.buttonPressed(1) then
-        local val = window.getZoom() + 2
-        if val >= 10 then val = 2 end
-        window.setZoom(val)
-    elseif keyboard.keyPressed(key.F3) then
-        window.setFullscreen(not window.getFullscreen())
-    end
-
-    if x>160 then x=-utf8.len(text)*4 end
-
-    viewport.resetClipping()
-    viewport.setOrigin(0,0)
-    surface.cls(20)
-    viewport.setClipping(10,10,140,100)
-    surface.cls(3)
-    draw.text("HOLA",0,0,5)
-    viewport.setOrigin(-70,-50)
-    draw.text("ORÍGIN",0,0,5)
-    draw.text(text,x,10,5)
-    draw.circFill(20,20,10,15);
-    draw.setPattern(0x5a5a);
-    draw.circFill(20,20,10,10);
-    draw.setPattern(0xffff);
-end
-
-redefinekeys = {
-    state = 0,
-    init = function ()
-        redefinekeys.state=0
-        _update=redefinekeys.update
-    end,
-    update = function()
-        surface.cls(20)
-        if redefinekeys.state == 0 then
-            draw.text("PULSA TECLA PER A DRETA...",0,0,10)
-            local key = keyboard.keyPressed();
-            if key ~= 0 then
-                redefinekeys.state = 1
-                keyRight=key
-                config.setKey("keyright", keyRight)
-            end
-        elseif redefinekeys.state == 1 then
-            draw.text("PULSA TECLA PER A ESQUERRA...",0,0,10)
-            local key = keyboard.keyPressed();
-            if key ~= 0 then
-                keyLeft=key
-                config.setKey("keyleft", keyLeft)
-                _update=normal_update
-            end
-        end
-    end
-}

data/other.lua

@@ -1,6 +0,0 @@
-return {
-	peiv = function()
-		palette.setColor(1, 1, 1, 1)
-		return "HOLA OTHER UNIT"
-	end
-}

gif.h

@@ -22,19 +22,12 @@ struct dictionary_entry_t
 
 void uncompress( int code_length, const uint8_t *input, int input_length, uint8_t *out )
 {
-    int i, bit;
-    int code, prev = -1;
     dictionary_entry_t *dictionary;
     int dictionary_ind;
-    uint32_t mask = 0x01;
-    int reset_code_length;
-    int clear_code; // This varies depending on code_length
-    int stop_code;  // one more than clear code
-    int match_len;
 
-    clear_code = 1 << ( code_length );
-    stop_code = clear_code + 1;
-    reset_code_length = code_length;
+    const int clear_code = 1 << ( code_length );
+    const int stop_code = clear_code + 1;
+    const int reset_code_length = code_length;
 
     dictionary = ( dictionary_entry_t * )
     malloc( sizeof( dictionary_entry_t ) * ( 1 << ( code_length + 1 ) ) );
@@ -47,12 +40,15 @@ void uncompress( int code_length, const uint8_t *input, int input_length, uint8_
     }
     dictionary_ind+=2;
 
+    int prev = -1;
+    uint32_t mask = 0x01;
     while ( input_length )
     {
-        code = 0x0;
-        for (i=0; i<(code_length + 1); i++)
+        int code = 0x0;
+        
+        for (int i=0; i<(code_length + 1); i++)
         {
-            bit = ( *input & mask ) ? 1 : 0;
+            const int bit = ( *input & mask ) ? 1 : 0;
             mask <<= 1;
 
             if ( mask == 0x100 )
@@ -90,18 +86,9 @@ void uncompress( int code_length, const uint8_t *input, int input_length, uint8_
                 exit( 0 );
             }
 
-            if ( code == dictionary_ind )
-            {
-                int ptr = prev;
-                while ( dictionary[ ptr ].prev != -1 ) ptr = dictionary[ ptr ].prev;
-                dictionary[ dictionary_ind ].byte = dictionary[ ptr ].byte;
-            }
-            else
-            {
-                int ptr = code;
-                while ( dictionary[ ptr ].prev != -1 ) ptr = dictionary[ ptr ].prev;
-                dictionary[ dictionary_ind ].byte = dictionary[ ptr ].byte;
-            }
+            int ptr = (code == dictionary_ind) ? prev : code;
+            while ( dictionary[ ptr ].prev != -1 ) ptr = dictionary[ ptr ].prev;
+            dictionary[ dictionary_ind ].byte = dictionary[ ptr ].byte;
 
             dictionary[ dictionary_ind ].prev = prev;
             dictionary[ dictionary_ind ].len = dictionary[ prev ].len + 1;
@@ -116,7 +103,7 @@ void uncompress( int code_length, const uint8_t *input, int input_length, uint8_
 
         prev = code;
 
-        match_len = dictionary[ code ].len;
+        const int match_len = dictionary[ code ].len;
         while ( code != -1 )
         {
             out[ dictionary[ code ].len - 1 ] = dictionary[ code ].byte;
@@ -197,8 +184,8 @@ static uint8_t* LoadGif(uint8_t *buffer, uint16_t* w, uint16_t* h)
     rgb *global_color_table = NULL;
 
     buffer += 6; // Ignore header
-    *w = (uint16_t)*buffer; buffer+=2;
-    *h = (uint16_t)*buffer; buffer+=2;
+    *w = *((uint16_t*)buffer); buffer+=2;
+    *h = *((uint16_t*)buffer); buffer+=2;
     const uint8_t fields = *buffer; buffer+=3;
 
     const int color_resolution_bits = ( ( fields & 0x70 ) >> 4 ) + 1;

gifenc.h

@@ -3,226 +3,172 @@
 #include <stdint.h>
 #include <string.h>
 
+#define MAX_DICT_SIZE 4096
+
 namespace gif
 {
-    struct gif_t {
-        uint16_t w, h;
-        int depth;
-        int bgindex;
-        FILE *fd;
-        int offset;
-        int nframes;
-        uint8_t *frame, *back;
-        uint32_t partial;
-        uint8_t buffer[0xFF];
-    };
+    typedef struct {
+        int prefix;
+        uint8_t character;
+    } DictEntry;
 
-    struct node_t {
-        uint16_t key;
-        node_t *children[];
-    };
+    typedef struct {
+        uint8_t *data;
+        size_t size;
+        size_t capacity;
+        int bit_pos;
+        uint32_t bit_buffer;
+    } BitStream;
 
-    static node_t *new_node(uint16_t key, int degree)
-    {
-        node_t *node = (node_t*)calloc(1, sizeof(*node) + degree * sizeof(node_t *));
-        if (node) node->key = key;
-        return node;
+    void bitstream_init(BitStream *bs) {
+        bs->capacity = 256;
+        bs->size = 0;
+        bs->data = (uint8_t*)malloc(bs->capacity);
+        bs->bit_pos = 0;
+        bs->bit_buffer = 0;
     }
 
-    static node_t *new_trie(int degree, int *nkeys)
-    {
-        node_t *root = new_node(0, degree);
-        /* Create nodes for single pixels. */
-        for (*nkeys = 0; *nkeys < degree; (*nkeys)++) root->children[*nkeys] = new_node(*nkeys, degree);
-        *nkeys += 2; /* skip clear code and stop code */
-        return root;
-    }
+    void bitstream_write(BitStream *bs, uint16_t code, int code_size) {
+        bs->bit_buffer |= ((uint32_t)code) << bs->bit_pos;
+        bs->bit_pos += code_size;
 
-    static void del_trie(node_t *root, int degree)
-    {
-        if (!root) return;
-        for (int i = 0; i < degree; i++) del_trie(root->children[i], degree);
-        free(root);
-    }
-
-    static void put_loop(gif_t *gif, uint16_t loop);
-
-    gif_t *create(const char *fname, uint16_t width, uint16_t height, uint8_t *palette, uint8_t depth, int16_t bgindex, int loop)
-    {
-        gif_t *gif = (gif_t*)calloc(1, sizeof(*gif) + (bgindex < 0 ? 2 : 1)*width*height);
-        gif->w = width; gif->h = height;
-        gif->bgindex = bgindex;
-        gif->frame = (uint8_t *) &gif[1];
-        gif->back = &gif->frame[width*height];
-        gif->fd = fopen(fname, "wb");
-        if (!gif->fd) { free(gif); return NULL; }
-        fwrite("GIF89a", 6, 1, gif->fd);
-        fwrite(&width, 2, 1, gif->fd);
-        fwrite(&height, 2, 1, gif->fd);
-        gif->depth = depth;
-        fputc((!palette?0x70:0xF0|(depth-1)), gif->fd);
-        fputc(bgindex, gif->fd); fputc(0, gif->fd);
-        if (palette) fwrite(palette, 3 << depth, 1, gif->fd);
-        if (loop >= 0 && loop <= 0xFFFF) put_loop(gif, (uint16_t)loop);
-        return gif;
-    }
-
-    static void put_loop(gif_t *gif, uint16_t loop)
-    {
-        fputc('!', gif->fd); fputc(0xFF, gif->fd); fputc(0x0B, gif->fd);
-        fwrite("NETSCAPE2.0", 11, 1, gif->fd);
-        fputc(0x03, gif->fd); fputc(0x01, gif->fd);
-        fwrite(&loop, 2, 1, gif->fd);
-        fputc(0, gif->fd);
-    }
-
-    /* Add packed key to buffer, updating offset and partial.
-    *   gif->offset holds position to put next *bit*
-    *   gif->partial holds bits to include in next byte */
-    static void put_key(gif_t *gif, uint16_t key, int key_size)
-    {
-        int byte_offset, bit_offset, bits_to_write;
-        byte_offset = gif->offset / 8;
-        bit_offset = gif->offset % 8;
-        gif->partial |= ((uint32_t) key) << bit_offset;
-        bits_to_write = bit_offset + key_size;
-        while (bits_to_write >= 8) {
-            gif->buffer[byte_offset++] = gif->partial & 0xFF;
-            if (byte_offset == 0xFF) {
-                fputc(0xFF, gif->fd);
-                fwrite(gif->buffer, 0xFF, 1, gif->fd);
-                byte_offset = 0;
+        while (bs->bit_pos >= 8) {
+            if (bs->size >= bs->capacity) {
+                bs->capacity *= 2;
+                bs->data = (uint8_t*)realloc(bs->data, bs->capacity);
             }
-            gif->partial >>= 8;
-            bits_to_write -= 8;
+            bs->data[bs->size++] = bs->bit_buffer & 0xFF;
+            bs->bit_buffer >>= 8;
+            bs->bit_pos -= 8;
         }
-        gif->offset = (gif->offset + key_size) % (0xFF * 8);
     }
 
-    static void end_key(gif_t *gif)
-    {
-        uint8_t byte_offset;
-        byte_offset = gif->offset >> 3;
-        if (gif->offset & 0x07) gif->buffer[byte_offset++] = gif->partial & 0xFF;
-        if (byte_offset)
-        {
-            fputc(byte_offset, gif->fd);
-            fwrite(gif->buffer, byte_offset, 1, gif->fd);
+    void bitstream_flush(BitStream *bs) {
+        if (bs->bit_pos > 0) {
+            if (bs->size >= bs->capacity) {
+                bs->capacity *= 2;
+                bs->data = (uint8_t*)realloc(bs->data, bs->capacity);
+            }
+            bs->data[bs->size++] = bs->bit_buffer & 0xFF;
         }
-        fputc(0, gif->fd);
-        gif->offset = gif->partial = 0;
     }
 
-    static void put_image(gif_t *gif, uint16_t w, uint16_t h, uint16_t x, uint16_t y)
-    {
-        int nkeys, key_size, i, j;
-        node_t *node, *child, *root;
-        int degree = 1 << gif->depth;
+    uint8_t *lzw_compress(uint8_t *input, int width, int height, int min_code_size, size_t *out_size) {
+        int clear_code = 1 << min_code_size;
+        int end_code = clear_code + 1;
+        int next_code = end_code + 1;
+        int code_size = min_code_size + 1;
 
-        fputc(',', gif->fd);
-        fwrite(&x, 2, 1, gif->fd);
-        fwrite(&y, 2, 1, gif->fd);
-        fwrite(&w, 2, 1, gif->fd);
-        fwrite(&h, 2, 1, gif->fd);
-        fputc(0, gif->fd); fputc(gif->depth, gif->fd);
-        root = node = new_trie(degree, &nkeys);
-        key_size = gif->depth + 1;
-        put_key(gif, degree, key_size); /* clear code */
-        for (i = y; i < y+h; i++) {
-            for (j = x; j < x+w; j++) {
-                uint8_t pixel = gif->frame[i*gif->w+j] & (degree - 1);
-                child = node->children[pixel];
-                if (child) {
-                    node = child;
+        DictEntry dict[MAX_DICT_SIZE];
+        int dict_len = next_code;
+
+        BitStream bs;
+        bitstream_init(&bs);
+        bitstream_write(&bs, clear_code, code_size);
+
+        int prefix = input[0];
+        for (int i = 1; i < width * height; i++) {
+            uint8_t c = input[i];
+
+            // Search for prefix + c in dictionary
+            int found = -1;
+            for (int j = end_code + 1; j < dict_len; j++) {
+                if (dict[j].prefix == prefix && dict[j].character == c) {
+                    found = j;
+                    break;
+                }
+            }
+
+            if (found != -1) {
+                prefix = found; // Extend prefix
+            } else {
+                bitstream_write(&bs, prefix, code_size); // Emit current prefix
+                if (dict_len < MAX_DICT_SIZE) {
+                    if (dict_len == (1 << code_size) && code_size < 12) code_size++;
+                    dict[dict_len].prefix = prefix;
+                    dict[dict_len].character = c;
+                    dict_len++;
                 } else {
-                    put_key(gif, node->key, key_size);
-                    if (nkeys < 0x1000) {
-                        if (nkeys == (1 << key_size))
-                            key_size++;
-                        node->children[pixel] = new_node(nkeys++, degree);
-                    } else {
-                        put_key(gif, degree, key_size); /* clear code */
-                        del_trie(root, degree);
-                        root = node = new_trie(degree, &nkeys);
-                        key_size = gif->depth + 1;
-                    }
-                    node = root->children[pixel];
+                    bitstream_write(&bs, clear_code, code_size);
+                    dict_len = end_code + 1;
+                    code_size = min_code_size + 1;
                 }
+                prefix = c; // Start new prefix
             }
         }
-        put_key(gif, node->key, key_size);
-        put_key(gif, degree + 1, key_size); /* stop code */
-        end_key(gif);
-        del_trie(root, degree);
+
+        // Emit final prefix and end code
+        bitstream_write(&bs, prefix, code_size);
+        bitstream_write(&bs, end_code, code_size);
+        bitstream_flush(&bs);
+
+        *out_size = bs.size;
+        return bs.data;
     }
 
-    static int get_bbox(gif_t *gif, uint16_t *w, uint16_t *h, uint16_t *x, uint16_t *y)
-    {
-        int i, j, k;
-        int left, right, top, bottom;
-        uint8_t back;
-        left = gif->w; right = 0;
-        top = gif->h; bottom = 0;
-        k = 0;
-        for (i = 0; i < gif->h; i++) {
-            for (j = 0; j < gif->w; j++, k++) {
-                back = gif->bgindex >= 0 ? gif->bgindex : gif->back[k];
-                if (gif->frame[k] != back) {
-                    if (j < left)   left    = j;
-                    if (j > right)  right   = j;
-                    if (i < top)    top     = i;
-                    if (i > bottom) bottom  = i;
-                }
-            }
+    void write_gif(const char *filename, uint8_t *pixels, int width, int height, uint8_t *palette, int palette_size) {
+        FILE *f = fopen(filename, "wb");
+        if (!f) {
+            perror("Failed to open file");
+            return;
         }
-        if (left != gif->w && top != gif->h) {
-            *x = left; *y = top;
-            *w = right - left + 1;
-            *h = bottom - top + 1;
-            return 1;
-        } else {
-            return 0;
+
+        // Header
+        fwrite("GIF89a", 1, 6, f);
+
+        // Determine min_code_size from palette_size
+        int palette_depth = 0;
+        while ((1 << palette_depth) < palette_size) palette_depth++;
+        const int min_code_size = palette_depth < 2 ? 2 : palette_depth; // GIF spec requires at least 2
+
+        printf("min_code_size: %i\n", palette_depth);
+
+        // Logical Screen Descriptor
+        uint8_t packed_field = palette ? (0x80 | ((palette_depth - 1) << 4) | (palette_depth - 1)) : 0x00;
+        uint8_t screen_desc[] = {
+            uint8_t(width & 0xFF), uint8_t((width >> 8) & 0xFF),
+            uint8_t(height & 0xFF), uint8_t((height >> 8) & 0xFF),
+            packed_field, // GCT flag + color resolution + size
+            0x00,         // Background color index
+            0x00          // Pixel aspect ratio
+        };
+        fwrite(screen_desc, 1, sizeof(screen_desc), f);
+
+        // Global Color Table (if provided)
+        if (palette) {
+            int gct_size = 1 << palette_depth;
+            fwrite(palette, 1, gct_size * 3, f);
         }
-    }
 
-    static void add_graphics_control_extension(gif_t *gif, uint16_t d)
-    {
-        uint8_t flags = ((gif->bgindex >= 0 ? 2 : 1) << 2) + 1;
-        fputc('!', gif->fd); fputc(0xF9, gif->fd); fputc(0x04, gif->fd); fputc(flags, gif->fd);
-        fwrite(&d, 2, 1, gif->fd);
-        fputc(gif->bgindex, gif->fd); fputc(0, gif->fd);
-    }
+        // Image Descriptor
+        uint8_t image_desc[] = {
+            0x2C, 0, 0, 0, 0,
+            uint8_t(width & 0xFF), uint8_t((width >> 8) & 0xFF),
+            uint8_t(height & 0xFF), uint8_t((height >> 8) & 0xFF),
+            0x00 // No local color table
+        };
+        fwrite(image_desc, 1, sizeof(image_desc), f);
 
-    void addFrame(gif_t *gif, uint16_t delay)
-    {
-        uint16_t w, h, x, y;
-        uint8_t *tmp;
+        // LZW-compressed image data
+        fwrite(&min_code_size, 1, 1, f);
 
-        if (delay || (gif->bgindex >= 0))
-            add_graphics_control_extension(gif, delay);
-        if (gif->nframes == 0) {
-            w = gif->w;
-            h = gif->h;
-            x = y = 0;
-        } else if (!get_bbox(gif, &w, &h, &x, &y)) {
-            /* image's not changed; save one pixel just to add delay */
-            w = h = 1;
-            x = y = 0;
+        size_t compressed_size;
+        uint8_t *compressed = lzw_compress(pixels, width, height, min_code_size, &compressed_size);
+
+        // Write as sub-blocks
+        size_t offset = 0;
+        while (offset < compressed_size) {
+            uint8_t block_size = (compressed_size - offset > 255) ? 255 : (uint8_t)(compressed_size - offset);
+            fwrite(&block_size, 1, 1, f);
+            fwrite(compressed + offset, 1, block_size, f);
+            offset += block_size;
         }
-        put_image(gif, w, h, x, y);
-        gif->nframes++;
-        if (gif->bgindex < 0) {
-            tmp = gif->back;
-            gif->back = gif->frame;
-            gif->frame = tmp;
-        }
-    }
+        fputc(0x00, f); // Block terminator
 
-    void close(gif_t* gif)
-    {
-        fputc(';', gif->fd);
-        fclose(gif->fd);
-        free(gif);
-    }
+        // Trailer
+        fputc(0x3B, f);
 
+        free(compressed);
+        fclose(f);
+    }
 }

jail_audio.cpp

@@ -1,47 +1,61 @@
 #ifndef JA_USESDLMIXER
 #include "jail_audio.h"
-#include "stb_vorbis.c"
-#include <SDL2/SDL.h>
+#include "stb_vorbis.h"
+#include <SDL3/SDL.h>
 #include <stdio.h>
+#include "log.h"
 
 #define JA_MAX_SIMULTANEOUS_CHANNELS 5
 
-struct JA_Sound_t {
-    Uint32  length {0};
-    Uint8*  buffer {NULL};
+struct JA_Sound_t
+{
+    SDL_AudioSpec       spec        { SDL_AUDIO_S16, 2, 48000 };
+    Uint32              length      { 0 };
+    Uint8               *buffer     { NULL };
 };
 
-struct JA_Channel_t {
-    JA_Sound_t          *sound;
-    int                 pos {0};
-    int                 times {0};
-    JA_Channel_state    state { JA_CHANNEL_FREE };
+struct JA_Channel_t
+{
+    JA_Sound_t          *sound      { nullptr };
+    int                 pos         { 0 };
+    int                 times       { 0 };
+    SDL_AudioStream     *stream     { nullptr };
+    JA_Channel_state    state       { JA_CHANNEL_FREE };
 };
 
-struct JA_Music_t {
-    int             samples {0};
-    int             pos {0};
-    int             times {0};
-    short*          output {NULL};
-    JA_Music_state  state {JA_MUSIC_INVALID};
+struct JA_Music_t
+{
+    SDL_AudioSpec       spec        { SDL_AUDIO_S16, 2, 48000 };
+    Uint32              length      { 0 };
+    Uint8               *buffer     { nullptr };
+
+    int                 pos         { 0 };
+    int                 times       { 0 };
+    SDL_AudioStream     *stream     { nullptr };
+    JA_Music_state      state       { JA_MUSIC_INVALID };
 };
 
-JA_Music_t      *current_music{NULL};
-JA_Channel_t    channels[JA_MAX_SIMULTANEOUS_CHANNELS];
+JA_Music_t          *current_music  { nullptr };
+JA_Channel_t        channels[JA_MAX_SIMULTANEOUS_CHANNELS];
 
-int             JA_freq {48000};
-SDL_AudioFormat JA_format {AUDIO_S16};
-Uint8           JA_channels {2};
-int             JA_musicVolume = 128;
-int             JA_soundVolume = 64;
-bool            JA_musicEnabled = true;
-bool            JA_soundEnabled = true;
-SDL_AudioDeviceID sdlAudioDevice = 0;
+SDL_AudioSpec       JA_audioSpec    { SDL_AUDIO_S16, 2, 48000 };
+float               JA_musicVolume  { 1.0f };
+float               JA_soundVolume  { 0.5f };
+bool                JA_musicEnabled { true };
+bool                JA_soundEnabled { true };
+SDL_AudioDeviceID   sdlAudioDevice  { 0 };
+SDL_TimerID         JA_timerID      { 0 };
 
+bool fading = false;
+int fade_start_time;
+int fade_duration;
+int fade_initial_volume;
+
+/*
 void audioCallback(void * userdata, uint8_t * stream, int len) {
     SDL_memset(stream, 0, len);
     if (current_music != NULL && current_music->state == JA_MUSIC_PLAYING) {
-        const int size = SDL_min(len, (current_music->samples-current_music->pos)*2);
+        const int size = SDL_min(len, current_music->samples*2-current_music->pos);
         SDL_MixAudioFormat(stream, (Uint8*)(current_music->output+current_music->pos), AUDIO_S16, size, JA_musicVolume);
         current_music->pos += size/2;
         if (size < len) {
@@ -73,56 +87,100 @@ void audioCallback(void * userdata, uint8_t * stream, int len) {
         }
     }
 }
+*/
+
+Uint32 JA_UpdateCallback(void *userdata, SDL_TimerID timerID, Uint32 interval)
+{
+    if (JA_musicEnabled && current_music && current_music->state == JA_MUSIC_PLAYING)
+    {
+        if (fading) {
+            int time = SDL_GetTicks();
+            if (time > (fade_start_time+fade_duration)) {
+                fading = false;
+                JA_StopMusic();
+                return 30;
+            } else {
+                const int time_passed = time - fade_start_time;
+                const float percent = (float)time_passed / (float)fade_duration;
+                SDL_SetAudioStreamGain(current_music->stream, 1.0 - percent);
+            }
+        }
+
+        if (current_music->times != 0)
+        {
+            if (SDL_GetAudioStreamAvailable(current_music->stream) < int(current_music->length/2)) {
+                SDL_PutAudioStreamData(current_music->stream, current_music->buffer, current_music->length);
+            }
+            if (current_music->times>0) current_music->times--;
+        }
+        else
+        {
+            if (SDL_GetAudioStreamAvailable(current_music->stream) == 0) JA_StopMusic();
+        }
+    }
+
+    if (JA_soundEnabled)
+    {
+        for (int i=0; i < JA_MAX_SIMULTANEOUS_CHANNELS; ++i)
+            if (channels[i].state == JA_CHANNEL_PLAYING)
+            {
+                if (channels[i].times != 0)
+                {
+                    if (SDL_GetAudioStreamAvailable(channels[i].stream) < int(channels[i].sound->length/2))
+                        SDL_PutAudioStreamData(channels[i].stream, channels[i].sound->buffer, channels[i].sound->length);
+                    if (channels[i].times>0) channels[i].times--;
+                }
+            }
+            else
+            {
+                if (SDL_GetAudioStreamAvailable(channels[i].stream) == 0) JA_StopChannel(i);
+            }
+
+    }
+
+    return 30;
+}
 
 void JA_Init(const int freq, const SDL_AudioFormat format, const int channels)
 {
     #ifdef DEBUG
-    SDL_LogSetPriority(SDL_LOG_CATEGORY_APPLICATION, SDL_LOG_PRIORITY_DEBUG);
+    SDL_SetLogPriority(SDL_LOG_CATEGORY_APPLICATION, SDL_LOG_PRIORITY_DEBUG);
     #endif
     
-    SDL_Log("Iniciant JailAudio...");
-    JA_freq = freq;
-    JA_format = format;
-    JA_channels = channels;
-    SDL_AudioSpec audioSpec{JA_freq, JA_format, JA_channels, 0, 1024, 0, 0, audioCallback, NULL};
-    if (sdlAudioDevice != 0) SDL_CloseAudioDevice(sdlAudioDevice);
-    sdlAudioDevice = SDL_OpenAudioDevice(NULL, 0, &audioSpec, NULL, 0);
-    if (sdlAudioDevice==0)
-    {
-        SDL_Log("FAILED!\n");
-        SDL_Log("Failed to initialize SDL audio!\n");
+    JA_audioSpec = {format, channels, freq };
+    if (!sdlAudioDevice) SDL_CloseAudioDevice(sdlAudioDevice);
+    sdlAudioDevice = SDL_OpenAudioDevice(SDL_AUDIO_DEVICE_DEFAULT_PLAYBACK, &JA_audioSpec);
+    if (!sdlAudioDevice) {
+        log_msg(LOG_FAIL, "Failed to initialize SDL audio: %s\n", SDL_GetError());
     } else {
-        SDL_Log("OK!\n");
+        log_msg(LOG_OK, "Audio subsytem initialized\n");
     }
-    SDL_PauseAudioDevice(sdlAudioDevice, 0);
+    //SDL_PauseAudioDevice(sdlAudioDevice);
+    JA_timerID = SDL_AddTimer(30, JA_UpdateCallback, nullptr);
 }
 
-void JA_Quit() {
-    SDL_PauseAudioDevice(sdlAudioDevice, 1);
-    if (sdlAudioDevice != 0) SDL_CloseAudioDevice(sdlAudioDevice);
+void JA_Quit()
+{
+    if (JA_timerID) SDL_RemoveTimer(JA_timerID);
+
+    if (!sdlAudioDevice) SDL_CloseAudioDevice(sdlAudioDevice);
     sdlAudioDevice = 0;
 }
 
 JA_Music_t *JA_LoadMusic(Uint8* buffer, Uint32 length)
 {
-    int chan, samplerate;
     JA_Music_t *music = new JA_Music_t();
 
-    music->samples = stb_vorbis_decode_memory(buffer, length, &chan, &samplerate, &music->output);
-    // [RZC 28/08/22] Abans el descomprimiem mentre el teniem obert
-//    music->samples = stb_vorbis_decode_filename(filename, &chan, &samplerate, &music->output);
+    int chan, samplerate;
+    short *output;
+    music->length = stb_vorbis_decode_memory(buffer, length, &chan, &samplerate, &output) * chan * 2;
 
-    SDL_AudioCVT cvt;
-    SDL_BuildAudioCVT(&cvt, AUDIO_S16, chan, samplerate, JA_format, JA_channels, JA_freq);
-    SDL_Log("Music length: %f\n", float(music->samples)/float(JA_freq));
-    if (cvt.needed) {
-        cvt.len = music->samples * chan * 2;
-        cvt.buf = (Uint8 *) SDL_malloc(cvt.len * cvt.len_mult);
-        SDL_memcpy(cvt.buf, music->output, cvt.len);
-        SDL_ConvertAudio(&cvt);
-        free(music->output);
-        music->output = (short*)cvt.buf;
-    }
+    music->spec.channels = chan;
+    music->spec.freq = samplerate;
+    music->spec.format = SDL_AUDIO_S16;
+    music->buffer = (Uint8*)SDL_malloc(music->length);
+    SDL_memcpy(music->buffer, output, music->length);
+    free(output);
     music->pos = 0;
     music->state = JA_MUSIC_STOPPED;
 
@@ -151,122 +209,133 @@ void JA_PlayMusic(JA_Music_t *music, const int loop)
 {
     if (!JA_musicEnabled) return;
 
-    if (current_music != NULL) {
-        current_music->pos = 0;
-        current_music->state = JA_MUSIC_STOPPED;
-    }
+    JA_StopMusic();
+
     current_music = music;
     current_music->pos = 0;
     current_music->state = JA_MUSIC_PLAYING;
     current_music->times = loop;
+
+    current_music->stream = SDL_CreateAudioStream(&current_music->spec, &JA_audioSpec);
+    if (!SDL_PutAudioStreamData(current_music->stream, current_music->buffer, current_music->length)) log_msg(LOG_FAIL, "SDL_PutAudioStreamData failed!\n");
+    SDL_SetAudioStreamGain(current_music->stream, JA_musicVolume);
+    if (!SDL_BindAudioStream(sdlAudioDevice, current_music->stream)) log_msg(LOG_FAIL, "SDL_BindAudioStream failed!\n");
+    //SDL_ResumeAudioStreamDevice(current_music->stream);
 }
 
 void JA_PauseMusic()
 {
     if (!JA_musicEnabled) return;
+    if (!current_music || current_music->state == JA_MUSIC_INVALID) return;
 
-    if (current_music == NULL || current_music->state == JA_MUSIC_INVALID) return;
     current_music->state = JA_MUSIC_PAUSED;
+    //SDL_PauseAudioStreamDevice(current_music->stream);
+    SDL_UnbindAudioStream(current_music->stream);
 }
 
 void JA_ResumeMusic()
 {
     if (!JA_musicEnabled) return;
+    if (!current_music || current_music->state == JA_MUSIC_INVALID) return;
 
-    if (current_music == NULL || current_music->state == JA_MUSIC_INVALID) return;
     current_music->state = JA_MUSIC_PLAYING;
+    //SDL_ResumeAudioStreamDevice(current_music->stream);
+    SDL_BindAudioStream(sdlAudioDevice, current_music->stream);
 }
 
 void JA_StopMusic()
 {
     if (!JA_musicEnabled) return;
+    if (!current_music || current_music->state == JA_MUSIC_INVALID) return;
 
-    if (current_music == NULL || current_music->state == JA_MUSIC_INVALID) return;
     current_music->pos = 0;
     current_music->state = JA_MUSIC_STOPPED;
+    //SDL_PauseAudioStreamDevice(current_music->stream);
+    SDL_DestroyAudioStream(current_music->stream);
+    current_music->stream = nullptr;
 }
 
-JA_Music_state JA_GetMusicState() {
-    if (!JA_musicEnabled) return JA_MUSIC_DISABLED;
+void JA_FadeOutMusic(const int milliseconds)
+{
+    if (!JA_musicEnabled) return;
+    if (current_music == NULL || current_music->state == JA_MUSIC_INVALID) return;
+
+    fading = true;
+    fade_start_time = SDL_GetTicks();
+    fade_duration = milliseconds;
+    fade_initial_volume = JA_musicVolume;
+}
+
+JA_Music_state JA_GetMusicState()
+{
+    if (!JA_musicEnabled) return JA_MUSIC_DISABLED;
+    if (!current_music) return JA_MUSIC_INVALID;
 
-    if (current_music == NULL) return JA_MUSIC_INVALID;
     return current_music->state;
 }
 
-void JA_DeleteMusic(JA_Music_t *music) {
-    if (current_music == music) current_music = NULL;
-    free(music->output);
+void JA_DeleteMusic(JA_Music_t *music)
+{
+    if (current_music == music) current_music = nullptr;
+    SDL_free(music->buffer);
+    if (music->stream) SDL_DestroyAudioStream(music->stream);
     delete music;
 }
 
-int JA_SetMusicVolume(int volume)
+float JA_SetMusicVolume(float volume)
 {
-    JA_musicVolume = volume > 128 ? 128 : volume < 0 ? 0 : volume;
+    JA_musicVolume = SDL_clamp( volume, 0.0f, 1.0f );
+    if (current_music) SDL_SetAudioStreamGain(current_music->stream, JA_musicVolume);
     return JA_musicVolume;
 }
 
 void JA_SetMusicPosition(float value)
 {
     if (!current_music) return;
-    current_music->pos = value * JA_freq;
+    current_music->pos = value * current_music->spec.freq;
 }
 
 float JA_GetMusicPosition()
 {
     if (!current_music) return 0;
-    return float(current_music->pos)/float(JA_freq);
+    return float(current_music->pos)/float(current_music->spec.freq);
 }
 
 void JA_EnableMusic(const bool value)
 {
-    if (!value && current_music != NULL && current_music->state==JA_MUSIC_PLAYING) JA_StopMusic();
+    if ( !value && current_music && (current_music->state==JA_MUSIC_PLAYING) ) JA_StopMusic();
 
     JA_musicEnabled = value;
 }
 
+const bool JA_IsMusicEnabled()
+{
+    return JA_musicEnabled;
+}
+
 
 
 
-
-JA_Sound_t *JA_NewSound(Uint8* buffer, Uint32 length) {
+JA_Sound_t *JA_NewSound(Uint8* buffer, Uint32 length)
+{
     JA_Sound_t *sound = new JA_Sound_t();
     sound->buffer = buffer;
     sound->length = length;
     return sound;
 }
 
-JA_Sound_t *JA_LoadSound(uint8_t* buffer, uint32_t size) {
+JA_Sound_t *JA_LoadSound(uint8_t* buffer, uint32_t size)
+{
     JA_Sound_t *sound = new JA_Sound_t();
-    SDL_AudioSpec wavSpec;
-    SDL_LoadWAV_RW(SDL_RWFromMem(buffer, size),1, &wavSpec, &sound->buffer, &sound->length);
-    
-    SDL_AudioCVT cvt;
-    SDL_BuildAudioCVT(&cvt, wavSpec.format, wavSpec.channels, wavSpec.freq, JA_format, JA_channels, JA_freq);
-    cvt.len = sound->length;
-    cvt.buf = (Uint8 *) SDL_malloc(cvt.len * cvt.len_mult);
-    SDL_memcpy(cvt.buf, sound->buffer, sound->length);
-    SDL_ConvertAudio(&cvt);
-    SDL_FreeWAV(sound->buffer);
-    sound->buffer = cvt.buf;
-    sound->length = cvt.len_cvt;
+    SDL_LoadWAV_IO(SDL_IOFromMem(buffer, size),1, &sound->spec, &sound->buffer, &sound->length);
 
     return sound;
 }
 
-JA_Sound_t *JA_LoadSound(const char* filename) {
+JA_Sound_t *JA_LoadSound(const char* filename)
+{
     JA_Sound_t *sound = new JA_Sound_t();
-    SDL_AudioSpec wavSpec;
-    SDL_LoadWAV(filename, &wavSpec, &sound->buffer, &sound->length);
-
-    SDL_AudioCVT cvt;
-    SDL_BuildAudioCVT(&cvt, wavSpec.format, wavSpec.channels, wavSpec.freq, JA_format, JA_channels, JA_freq);
-    cvt.len = sound->length;
-    cvt.buf = (Uint8 *) SDL_malloc(cvt.len * cvt.len_mult);
-    SDL_memcpy(cvt.buf, sound->buffer, sound->length);
-    SDL_ConvertAudio(&cvt);
-    SDL_FreeWAV(sound->buffer);
-    sound->buffer = cvt.buf;
-    sound->length = cvt.len_cvt;
+    SDL_LoadWAV(filename, &sound->spec, &sound->buffer, &sound->length);
 
     return sound;
 }
@@ -278,11 +347,36 @@ int JA_PlaySound(JA_Sound_t *sound, const int loop)
     int channel = 0;
     while (channel < JA_MAX_SIMULTANEOUS_CHANNELS && channels[channel].state != JA_CHANNEL_FREE) { channel++; }
     if (channel == JA_MAX_SIMULTANEOUS_CHANNELS) channel = 0;
+    JA_StopChannel(channel);
 
     channels[channel].sound = sound;
     channels[channel].times = loop;
     channels[channel].pos = 0;
     channels[channel].state = JA_CHANNEL_PLAYING;
+    channels[channel].stream = SDL_CreateAudioStream(&channels[channel].sound->spec, &JA_audioSpec);
+    SDL_PutAudioStreamData(channels[channel].stream, channels[channel].sound->buffer, channels[channel].sound->length);
+    SDL_SetAudioStreamGain(channels[channel].stream, JA_soundVolume);
+    SDL_BindAudioStream(sdlAudioDevice, channels[channel].stream);
+
+    return channel;
+}
+
+int JA_PlaySoundOnChannel(JA_Sound_t *sound, const int channel, const int loop)
+{
+    if (!JA_soundEnabled) return -1;
+
+    if (channel < 0 || channel >= JA_MAX_SIMULTANEOUS_CHANNELS) return -1;
+    JA_StopChannel(channel);
+
+    channels[channel].sound = sound;
+    channels[channel].times = loop;
+    channels[channel].pos = 0;
+    channels[channel].state = JA_CHANNEL_PLAYING;
+    channels[channel].stream = SDL_CreateAudioStream(&channels[channel].sound->spec, &JA_audioSpec);
+    SDL_PutAudioStreamData(channels[channel].stream, channels[channel].sound->buffer, channels[channel].sound->length);
+    SDL_SetAudioStreamGain(channels[channel].stream, JA_soundVolume);
+    SDL_BindAudioStream(sdlAudioDevice, channels[channel].stream);
+
     return channel;
 }
 
@@ -299,12 +393,24 @@ void JA_PauseChannel(const int channel)
 {
     if (!JA_soundEnabled) return;
 
-    if (channel == -1) {
-        for (int i = 0; i < JA_MAX_SIMULTANEOUS_CHANNELS; i++) {
-            if (channels[i].state == JA_CHANNEL_PLAYING) channels[i].state = JA_CHANNEL_PAUSED;
+    if (channel == -1)
+    {
+        for (int i = 0; i < JA_MAX_SIMULTANEOUS_CHANNELS; i++)
+            if (channels[i].state == JA_CHANNEL_PLAYING)
+            {
+                channels[i].state = JA_CHANNEL_PAUSED;
+                //SDL_PauseAudioStreamDevice(channels[i].stream);
+                SDL_UnbindAudioStream(channels[i].stream);
+            }
+    }
+    else if (channel >= 0 && channel < JA_MAX_SIMULTANEOUS_CHANNELS)
+    {
+        if (channels[channel].state == JA_CHANNEL_PLAYING)
+        {
+            channels[channel].state = JA_CHANNEL_PAUSED;
+            //SDL_PauseAudioStreamDevice(channels[channel].stream);
+            SDL_UnbindAudioStream(channels[channel].stream);
         }
-    } else if (channel >= 0 && channel < JA_MAX_SIMULTANEOUS_CHANNELS) {
-        if (channels[channel].state == JA_CHANNEL_PLAYING) channels[channel].state = JA_CHANNEL_PAUSED;
     }
 }
 
@@ -312,12 +418,24 @@ void JA_ResumeChannel(const int channel)
 {
     if (!JA_soundEnabled) return;
 
-    if (channel == -1) {
-        for (int i = 0; i < JA_MAX_SIMULTANEOUS_CHANNELS; i++) {
-            if (channels[i].state == JA_CHANNEL_PAUSED) channels[i].state = JA_CHANNEL_PLAYING;
+    if (channel == -1)
+    {
+        for (int i = 0; i < JA_MAX_SIMULTANEOUS_CHANNELS; i++)
+            if (channels[i].state == JA_CHANNEL_PAUSED)
+            {
+                channels[i].state = JA_CHANNEL_PLAYING;
+                //SDL_ResumeAudioStreamDevice(channels[i].stream);
+                SDL_BindAudioStream(sdlAudioDevice, channels[i].stream);
+            }
+    }
+    else if (channel >= 0 && channel < JA_MAX_SIMULTANEOUS_CHANNELS)
+    {
+        if (channels[channel].state == JA_CHANNEL_PAUSED)
+        {
+            channels[channel].state = JA_CHANNEL_PLAYING;
+            //SDL_ResumeAudioStreamDevice(channels[channel].stream);
+            SDL_BindAudioStream(sdlAudioDevice, channels[channel].stream);
         }
-    } else if (channel >= 0 && channel < JA_MAX_SIMULTANEOUS_CHANNELS) {
-        if (channels[channel].state == JA_CHANNEL_PAUSED) channels[channel].state = JA_CHANNEL_PLAYING;
     }
 }
 
@@ -325,13 +443,20 @@ void JA_StopChannel(const int channel)
 {
     if (!JA_soundEnabled) return;
 
-    if (channel == -1) {
+    if (channel == -1)
+    {
         for (int i = 0; i < JA_MAX_SIMULTANEOUS_CHANNELS; i++) {
+            if (channels[i].state != JA_CHANNEL_FREE) SDL_DestroyAudioStream(channels[i].stream);
+            channels[i].stream = nullptr;
             channels[i].state = JA_CHANNEL_FREE;
             channels[i].pos = 0;
             channels[i].sound = NULL;
         }
-    } else if (channel >= 0 && channel < JA_MAX_SIMULTANEOUS_CHANNELS) {
+    }
+    else if (channel >= 0 && channel < JA_MAX_SIMULTANEOUS_CHANNELS)
+    {
+        if (channels[channel].state != JA_CHANNEL_FREE) SDL_DestroyAudioStream(channels[channel].stream);
+        channels[channel].stream = nullptr;
         channels[channel].state = JA_CHANNEL_FREE;
         channels[channel].pos = 0;
         channels[channel].sound = NULL;
@@ -343,12 +468,18 @@ JA_Channel_state JA_GetChannelState(const int channel)
     if (!JA_soundEnabled) return JA_SOUND_DISABLED;
 
     if (channel < 0 || channel >= JA_MAX_SIMULTANEOUS_CHANNELS) return JA_CHANNEL_INVALID;
+
     return channels[channel].state;
 }
 
-int JA_SetSoundVolume(int volume)
+float JA_SetSoundVolume(float volume)
 {
-    JA_soundVolume = volume > 128 ? 128 : volume < 0 ? 0 : volume;
+    JA_soundVolume = SDL_clamp( volume, 0.0f, 1.0f );
+
+    for (int i = 0; i < JA_MAX_SIMULTANEOUS_CHANNELS; i++)
+        if ( (channels[i].state == JA_CHANNEL_PLAYING) || (channels[i].state == JA_CHANNEL_PAUSED) )
+            SDL_SetAudioStreamGain(channels[i].stream, JA_soundVolume);
+
     return JA_soundVolume;
 }
 
@@ -361,10 +492,15 @@ void JA_EnableSound(const bool value)
     JA_soundEnabled = value;
 }
 
-int JA_SetVolume(int volume)
+const bool JA_IsSoundEnabled()
 {
-    JA_musicVolume = volume > 128 ? 128 : volume < 0 ? 0 : volume;
-    JA_soundVolume = JA_musicVolume/2;
+    return JA_soundEnabled;
+}
+
+float JA_SetVolume(float volume)
+{
+    JA_SetSoundVolume(JA_SetMusicVolume(volume) / 2.0f);
+
     return JA_musicVolume;
 }
 

jail_audio.h

@@ -1,5 +1,5 @@
 #pragma once
-#include <SDL2/SDL.h>
+#include <SDL3/SDL.h>
 
 enum JA_Channel_state { JA_CHANNEL_INVALID, JA_CHANNEL_FREE, JA_CHANNEL_PLAYING, JA_CHANNEL_PAUSED, JA_SOUND_DISABLED };
 enum JA_Music_state { JA_MUSIC_INVALID, JA_MUSIC_PLAYING, JA_MUSIC_PAUSED, JA_MUSIC_STOPPED, JA_MUSIC_DISABLED };
@@ -16,23 +16,27 @@ void JA_PlayMusic(JA_Music_t *music, const int loop = -1);
 void JA_PauseMusic();
 void JA_ResumeMusic();
 void JA_StopMusic();
+void JA_FadeOutMusic(const int milliseconds);
 JA_Music_state JA_GetMusicState();
 void JA_DeleteMusic(JA_Music_t *music);
-int JA_SetMusicVolume(int volume);
+float JA_SetMusicVolume(float volume);
 void JA_SetMusicPosition(float value);
 float JA_GetMusicPosition();
 void JA_EnableMusic(const bool value);
+const bool JA_IsMusicEnabled();
 
 JA_Sound_t *JA_NewSound(Uint8* buffer, Uint32 length);
 JA_Sound_t *JA_LoadSound(Uint8* buffer, Uint32 length);
 JA_Sound_t *JA_LoadSound(const char* filename);
 int JA_PlaySound(JA_Sound_t *sound, const int loop = 0);
+int JA_PlaySoundOnChannel(JA_Sound_t *sound, const int channel, const int loop = 0);
 void JA_PauseChannel(const int channel);
 void JA_ResumeChannel(const int channel);
 void JA_StopChannel(const int channel);
 JA_Channel_state JA_GetChannelState(const int channel);
 void JA_DeleteSound(JA_Sound_t *sound);
-int JA_SetSoundVolume(int volume);
+float JA_SetSoundVolume(float volume);
 void JA_EnableSound(const bool value);
+const bool JA_IsSoundEnabled();
 
-int JA_SetVolume(int volume);
+float JA_SetVolume(float volume);

jfile.cpp

@@ -9,7 +9,9 @@
 #include <fstream>
 #include <filesystem>
 #include <string>
-#include <vector>
+
+#include <algorithm>
+#include <dirent.h>     // Para opendir/readdir en SOURCE_FOLDER
 
 #ifndef _WIN32
 #include <pwd.h>
@@ -130,10 +132,30 @@ FILE *file_getfilepointer(const char *resourcename, int& filesize, const bool bi
 	return f;
 }
 
-char *file_getfilebuffer(const char *resourcename, int& filesize) {
+char *file_getfilebuffer(const char *resourcename, int& filesize, const bool zero_terminate) {
 	FILE *f = file_getfilepointer(resourcename, filesize, true);
-	char* buffer = (char*)malloc(filesize);
+	char* buffer = (char*)malloc(zero_terminate?filesize:filesize+1);
 	fread(buffer, filesize, 1, f);
+	if (zero_terminate) buffer[filesize]=0;
+	fclose(f);
+	return buffer;
+}
+
+FILE *file_getfilepointerex(const char *filename, int& filesize, const bool binary) {
+
+    FILE *f;
+	f = fopen(filename, binary?"rb":"r");
+	fseek(f, 0, SEEK_END);
+	filesize = ftell(f);
+	fseek(f, 0, SEEK_SET);
+	return f;
+}
+
+char *file_getfilebufferex(const char *filename, int& filesize, const bool zero_terminate) {
+	FILE *f = file_getfilepointerex(filename, filesize, true);
+	char* buffer = (char*)malloc(zero_terminate?filesize:filesize+1);
+	fread(buffer, filesize, 1, f);
+	if (zero_terminate) buffer[filesize]=0;
 	fclose(f);
 	return buffer;
 }
@@ -151,6 +173,29 @@ void file_setconfigfolder(const char *foldername)
 	struct passwd *pw = getpwuid(getuid());
 	const char *homedir = pw->pw_dir;
 	config_folder = std::string(homedir) + "/." + foldername;
+	config_folder = std::string(homedir) + "/.config/jailgames/" + foldername;
+
+	{
+		// Intenta crear ".config", per si no existeix
+		std::string config_base_folder = std::string(homedir) + "/.config";
+		int ret = mkdir(config_base_folder.c_str(), S_IRWXU);
+		if (ret == -1 && errno != EEXIST)
+		{
+			printf("ERROR CREATING CONFIG BASE FOLDER.");
+			exit(EXIT_FAILURE);
+		}
+	}
+	{
+		// Intenta crear ".config/jailgames", per si no existeix
+		std::string config_base_folder = std::string(homedir) + "/.config/jailgames";
+		int ret = mkdir(config_base_folder.c_str(), S_IRWXU);
+		if (ret == -1 && errno != EEXIST)
+		{
+			printf("ERROR CREATING CONFIG BASE FOLDER.");
+			exit(EXIT_FAILURE);
+		}
+	}
+
 #endif
 
 	struct stat st = {0};
@@ -171,7 +216,7 @@ void file_setconfigfolder(const char *foldername)
 }
 
 const char *file_getconfigfolder() {
-	std::string folder = config_folder + "/";
+	static std::string folder = config_folder + "/";
 	return folder.c_str();
 }
 
@@ -228,3 +273,107 @@ void file_setconfigvalue(const char* key, const char* value) {
 	file_saveconfigvalues();
 	return;
 }
+
+bool file_createFolder(const char* name) {
+	char tmp[256];
+	strcpy(tmp, "./");
+	strcat(tmp, name);
+	return mkdir(tmp, 0755)==0;
+}
+
+static bool has_extension(const std::string &name, const char *ext)
+{
+    if (!ext) return true; // sin filtro
+
+    std::string e = ext;
+    std::string suffix = "." + e;
+
+    if (name.size() < suffix.size())
+        return false;
+
+    return (name.compare(name.size() - suffix.size(), suffix.size(), suffix) == 0);
+}
+
+std::vector<std::string> file_listdir(const char *folder, const char *extension)
+{
+    std::vector<std::string> result;
+    std::string base(folder);
+
+    // Normalizar: quitar "/" final si existe
+    if (!base.empty() && base.back() == '/')
+        base.pop_back();
+
+    // -------------------------------
+    // 1. MODO: ARCHIVOS SUELTOS
+    // -------------------------------
+    if (file_source == SOURCE_FOLDER)
+    {
+        std::string fullpath = std::string(resource_folder) + base;
+
+        DIR *dir = opendir(fullpath.c_str());
+        if (!dir)
+            return result;
+
+        struct dirent *entry;
+        while ((entry = readdir(dir)) != nullptr)
+        {
+            std::string name = entry->d_name;
+
+            // Ignorar "." y ".."
+            if (name == "." || name == "..")
+                continue;
+
+            // Ignorar subdirectorios
+            std::string full = fullpath + "/" + name;
+            DIR *test = opendir(full.c_str());
+            if (test)
+            {
+                closedir(test);
+                continue; // es un directorio
+            }
+
+            // Filtrar por extensión
+            if (!has_extension(name, extension))
+                continue;
+
+            result.push_back(name);
+        }
+
+        closedir(dir);
+        return result;
+    }
+
+    // -------------------------------
+    // 2. MODO: ARCHIVO CONTENEDOR
+    // -------------------------------
+    if (file_source == SOURCE_FILE)
+    {
+        std::string prefix = base + "/";
+
+        for (auto &f : toc)
+        {
+            const std::string &path = f.path;
+
+            // Debe empezar por "folder/"
+            if (path.compare(0, prefix.size(), prefix) != 0)
+                continue;
+
+            // Extraer la parte después de "folder/"
+            std::string rest = path.substr(prefix.size());
+
+            // Ignorar subdirectorios
+            if (rest.find('/') != std::string::npos)
+                continue;
+
+            // Filtrar por extensión
+            if (!has_extension(rest, extension))
+                continue;
+
+            result.push_back(rest);
+        }
+
+        return result;
+    }
+
+    return result;
+}

jfile.h

@@ -1,5 +1,7 @@
 #pragma once
 #include <stdio.h>
+#include <vector>
+#include <string>
 
 #define SOURCE_FILE         0
 #define SOURCE_FOLDER       1
@@ -12,7 +14,13 @@ void file_setresourcefolder(const char *str);
 void file_setsource(const int src);
 
 FILE *file_getfilepointer(const char *resourcename, int& filesize, const bool binary=false);
-char *file_getfilebuffer(const char *resourcename, int& filesize);
+char *file_getfilebuffer(const char *resourcename, int& filesize, const bool zero_terminate=false);
+
+FILE *file_getfilepointerex(const char *filename, int& filesize, const bool binary=false);
+char *file_getfilebufferex(const char *filename, int& filesize, const bool zero_terminate=false);
 
 const char* file_getconfigvalue(const char *key);
 void file_setconfigvalue(const char* key, const char* value);
+
+bool file_createFolder(const char* name);
+std::vector<std::string> file_listdir(const char *folder, const char *extension=NULL);

jshader.cpp

@@ -0,0 +1,250 @@
+#include "jshader.h"
+
+#include <iostream>
+
+#ifdef __APPLE__
+#include "CoreFoundation/CoreFoundation.h"
+#include <OpenGL/OpenGL.h>
+
+#if ESSENTIAL_GL_PRACTICES_SUPPORT_GL3
+#include <OpenGL/gl3.h>
+#else
+#include <OpenGL/gl.h>
+#endif //!ESSENTIAL_GL_PRACTICES_SUPPORT_GL3
+#else
+#include <SDL3/SDL_opengl.h>
+#include <SDL3/SDL_opengl_glext.h>
+#endif
+
+namespace shader
+{
+    SDL_Window *win = nullptr;
+    SDL_Renderer *renderer = nullptr;
+    GLuint programId = 0;
+    SDL_Texture* backBuffer = nullptr;
+    SDL_Point win_size = {640, 480};
+    SDL_FPoint tex_size = {320, 240};
+    bool can_use_opengl = false;
+    bool using_opengl = false;
+    GLuint texture_number;
+    GLuint nose;
+
+    #ifndef __APPLE__
+
+    // I'm avoiding the use of GLEW or some extensions handler, but that 
+    // doesn't mean you should...
+    PFNGLCREATESHADERPROC glCreateShader;
+    PFNGLSHADERSOURCEPROC glShaderSource;
+    PFNGLCOMPILESHADERPROC glCompileShader;
+    PFNGLGETSHADERIVPROC glGetShaderiv;
+    PFNGLGETSHADERINFOLOGPROC glGetShaderInfoLog;
+    PFNGLDELETESHADERPROC glDeleteShader;
+    PFNGLATTACHSHADERPROC glAttachShader;
+    PFNGLCREATEPROGRAMPROC glCreateProgram;
+    PFNGLDELETEPROGRAMPROC glDeleteProgram;
+    PFNGLLINKPROGRAMPROC glLinkProgram;
+    PFNGLVALIDATEPROGRAMPROC glValidateProgram;
+    PFNGLGETPROGRAMIVPROC glGetProgramiv;
+    PFNGLGETPROGRAMINFOLOGPROC glGetProgramInfoLog;
+    PFNGLUSEPROGRAMPROC glUseProgram;
+    PFNGLGETUNIFORMLOCATIONPROC glGetUniformLocation;
+
+    bool initGLExtensions() {
+        glCreateShader = (PFNGLCREATESHADERPROC)SDL_GL_GetProcAddress("glCreateShader");
+        glShaderSource = (PFNGLSHADERSOURCEPROC)SDL_GL_GetProcAddress("glShaderSource");
+        glCompileShader = (PFNGLCOMPILESHADERPROC)SDL_GL_GetProcAddress("glCompileShader");
+        glGetShaderiv = (PFNGLGETSHADERIVPROC)SDL_GL_GetProcAddress("glGetShaderiv");
+        glGetShaderInfoLog = (PFNGLGETSHADERINFOLOGPROC)SDL_GL_GetProcAddress("glGetShaderInfoLog");
+        glDeleteShader = (PFNGLDELETESHADERPROC)SDL_GL_GetProcAddress("glDeleteShader");
+        glAttachShader = (PFNGLATTACHSHADERPROC)SDL_GL_GetProcAddress("glAttachShader");
+        glCreateProgram = (PFNGLCREATEPROGRAMPROC)SDL_GL_GetProcAddress("glCreateProgram");
+        glDeleteProgram = (PFNGLDELETEPROGRAMPROC)SDL_GL_GetProcAddress("glDeleteProgram");
+        glLinkProgram = (PFNGLLINKPROGRAMPROC)SDL_GL_GetProcAddress("glLinkProgram");
+        glValidateProgram = (PFNGLVALIDATEPROGRAMPROC)SDL_GL_GetProcAddress("glValidateProgram");
+        glGetProgramiv = (PFNGLGETPROGRAMIVPROC)SDL_GL_GetProcAddress("glGetProgramiv");
+        glGetProgramInfoLog = (PFNGLGETPROGRAMINFOLOGPROC)SDL_GL_GetProcAddress("glGetProgramInfoLog");
+        glUseProgram = (PFNGLUSEPROGRAMPROC)SDL_GL_GetProcAddress("glUseProgram");
+        glGetUniformLocation = (PFNGLGETUNIFORMLOCATIONPROC)SDL_GL_GetProcAddress("glGetUniformLocation");
+
+        return glCreateShader && glShaderSource && glCompileShader && glGetShaderiv && 
+            glGetShaderInfoLog && glDeleteShader && glAttachShader && glCreateProgram &&
+            glDeleteProgram && glLinkProgram && glValidateProgram && glGetProgramiv &&
+            glGetProgramInfoLog && glUseProgram && glGetUniformLocation;
+    }
+
+    #endif
+
+    GLuint compileShader(const char* source, GLuint shaderType) {
+        // Create ID for shader
+        GLuint result = glCreateShader(shaderType);
+        // Add define depending on shader type
+        const char *sources[2] = { shaderType==GL_VERTEX_SHADER?"#define VERTEX\n":"#define FRAGMENT\n", source };
+        // Define shader text
+        glShaderSource(result, 2, sources, NULL);
+        // Compile shader
+        glCompileShader(result);
+
+        //Check vertex shader for errors
+        GLint shaderCompiled = GL_FALSE;
+        glGetShaderiv( result, GL_COMPILE_STATUS, &shaderCompiled );
+        if (shaderCompiled != GL_TRUE)
+        {
+            std::cout << "Error en la compilación: " << result << "!" << std::endl;
+            GLint logLength;
+            glGetShaderiv(result, GL_INFO_LOG_LENGTH, &logLength);
+            if (logLength > 0)
+            {
+                GLchar *log = (GLchar*)malloc(logLength);
+                glGetShaderInfoLog(result, logLength, &logLength, log);
+                std::cout << "Shader compile log:" << log << std::endl;
+                //std::cout << source << std::endl;
+                free(log);
+            }
+            glDeleteShader(result);
+            result = 0;
+        }
+        return result;
+    }
+
+    GLuint compileProgram(const char* vertexShaderSource, const char* fragmentShaderSource)
+    {
+        GLuint programId = 0;
+        GLuint vtxShaderId, fragShaderId;
+
+        if (programId != 0) glDeleteProgram(programId);
+        programId = glCreateProgram();
+        
+
+        vtxShaderId = compileShader(vertexShaderSource, GL_VERTEX_SHADER);
+        fragShaderId = compileShader(fragmentShaderSource?fragmentShaderSource:vertexShaderSource, GL_FRAGMENT_SHADER);
+
+        if(vtxShaderId && fragShaderId)
+        {
+            // Associate shader with program
+            glAttachShader(programId, vtxShaderId);
+            glAttachShader(programId, fragShaderId);
+            glLinkProgram(programId);
+            glValidateProgram(programId);
+
+            // Check the status of the compile/link
+            GLint logLen;
+            glGetProgramiv(programId, GL_INFO_LOG_LENGTH, &logLen);
+            if (logLen > 0)
+            {
+                char* log = (char*) malloc(logLen * sizeof(char));
+                // Show any errors as appropriate
+                glGetProgramInfoLog(programId, logLen, &logLen, log);
+                std::cout << "Prog Info Log: " << std::endl << log << std::endl;
+                free(log);
+            }
+        }
+        if (vtxShaderId) glDeleteShader(vtxShaderId);
+        if (fragShaderId) glDeleteShader(fragShaderId);
+        return programId;
+    }
+
+    const bool init(SDL_Window* win, SDL_Texture* backBuffer, const char* vertexShader, const char* fragmentShader)
+    {
+        shader::win = win;
+        shader::renderer = SDL_GetRenderer(win);
+        shader::backBuffer = backBuffer;
+        SDL_GetWindowSize(win, &win_size.x, &win_size.y);
+        SDL_GetTextureSize(backBuffer, &tex_size.x, &tex_size.y);
+        //printf("tex size: %fx%f\n", tex_size.x, tex_size.y);
+        SDL_PropertiesID props = SDL_GetTextureProperties(backBuffer);
+        texture_number = SDL_GetNumberProperty(props, SDL_PROP_TEXTURE_OPENGL_TEXTURE_NUMBER, -1);
+        //printf("texture number: %i\n", texture_number);
+        int access = SDL_GetNumberProperty(props, SDL_PROP_TEXTURE_ACCESS_NUMBER, -1);
+        nose = SDL_GetNumberProperty(props, SDL_PROP_TEXTURE_OPENGL_TEXTURE_TARGET_NUMBER, -1);
+        //printf("texture target number: %i\n", nose);
+
+        if (access != SDL_TEXTUREACCESS_TARGET)
+        {
+            std::cout << "ERROR FATAL: La textura per al render ha de tindre SDL_TEXTUREACCESS_TARGET definit." << std::endl;
+            exit(1);
+        }
+
+        const char * renderer_name = SDL_GetRendererName(renderer);
+        //printf("rendererInfo.name: %s\n", renderer_name);
+
+        if(!strncmp(renderer_name, "opengl", 6)) {
+#ifndef __APPLE__
+            static bool gl_extensions_initialized = false;
+            if (!gl_extensions_initialized) {
+                if (!initGLExtensions()) {
+                    std::cout << "WARNING: No s'han pogut inicialitzar les extensions d'OpenGL!" << std::endl;
+                    can_use_opengl = false;
+                    return false;
+                }
+                gl_extensions_initialized = true;
+            }
+#endif
+            // Compilar el shader y dejarlo listo para usar.
+            if (!vertexShader) {
+                can_use_opengl = false;
+                return false;
+            }
+            programId = compileProgram(vertexShader, fragmentShader);
+        } else {
+            std::cout << "WARNING: El driver del renderer no es OpenGL." << std::endl;
+            can_use_opengl = false;
+            return false;
+        }
+        can_use_opengl = true;
+        return true;
+    }
+
+    unsigned char pixels[512*240*4];
+
+    void enable() { if (can_use_opengl) using_opengl = true; }
+    void disable() { using_opengl = false; }
+
+    void render()
+    {
+        SDL_FlushRenderer(renderer);
+        SDL_SetRenderTarget(renderer, NULL);
+        SDL_SetRenderDrawColor(renderer, 0, 0, 0, 255);
+        SDL_RenderClear(renderer);
+        SDL_FlushRenderer(renderer);
+
+        if (using_opengl)
+        {
+            GLint oldProgramId;
+            if (programId != 0)
+            {
+                glGetIntegerv(GL_CURRENT_PROGRAM, &oldProgramId);
+                glUseProgram(programId);
+            }
+
+            glEnable(GL_TEXTURE_2D);
+            glActiveTexture(GL_TEXTURE0);
+            glBindTexture(GL_TEXTURE_2D, 1);
+            //glGetTexImage(GL_TEXTURE_2D, 0, GL_BGRA, GL_UNSIGNED_INT_8_8_8_8, pixels);
+            //if (glGetError()) { printf("GLGETERROR!\n"); exit(1);}
+            //GLint param;
+            //glGetTexLevelParameteriv(GL_TEXTURE_2D, 0, GL_TEXTURE_HEIGHT, &param);
+            //printf("tex width: %i\n", param);
+            glViewport(0, 0, win_size.x, win_size.y);
+            
+            glBegin(GL_TRIANGLE_STRIP);
+                glTexCoord2f(0.0f, 0.0f);
+                glVertex2f(-1.0f, -1.0f);
+                glTexCoord2f(tex_size.x, 0.0f);
+                glVertex2f(1.0f, -1.0f);
+                glTexCoord2f(0.0f, tex_size.y);
+                glVertex2f(-1.0f, 1.0f);
+                glTexCoord2f(tex_size.x, tex_size.y);
+                glVertex2f(1.0f, 1.0f);
+            glEnd();
+
+            SDL_GL_SwapWindow(win);
+
+            if (programId != 0) glUseProgram(oldProgramId);
+
+        } else {
+            SDL_RenderTexture(renderer, backBuffer, NULL, NULL);
+            SDL_RenderPresent(renderer);
+        }
+        if (glGetError()) { printf("GLERROR!\n"); exit(1); }
+    }
+}

jshader.h

@@ -0,0 +1,48 @@
+#pragma once
+
+#include <SDL3/SDL.h>
+
+// TIPS:
+// =======================================================================
+// Abans de crear el renderer, cridar a la següent funció:
+//
+//   SDL_SetHint(SDL_HINT_RENDER_DRIVER, "opengl");
+//
+// Aixó li diu que volem un renderer que use especificament opengl. A més,
+// al crear el renderer li tenim que dir que el volem que use acceeració
+// per hardware, i que soporte render a textura. Per exemple:
+//
+//   SDL_Renderer *ren = SDL_CreateRenderer(win, -1, SDL_RENDERER_ACCELERATED |
+//                                                   SDL_RENDERER_TARGETTEXTURE);
+//
+// Per altra part, al crear la textura tenim que definir que puga ser target
+// de renderitzat (SDL_TEXTUREACCESS_TARGET), per exemple:
+//
+// 	 SDL_Texture *tex = SDL_CreateTexture(renderer, SDL_PIXELFORMAT_ARGB8888,
+//		                                  SDL_TEXTUREACCESS_TARGET, 320, 240);
+//
+// Els shaders li'ls passem com una cadena, som nosaltres els que s'encarreguem
+// de carregarlos de disc, amb fopen, ifstream, jfile o el que vullgues.
+// Si els tens en un std::string, passa-li-la com "cadena.c_str()".
+// 
+// Poden ser els dos el mateix arxiu, com fa libRetro, jo desde dins ja fique
+// els defines necessaris. Si es el mateix arxiu, pots no ficar el quart paràmetre.
+//
+// Els shaders de libRetro no funcionen directament, hi ha que fer algunes modificacions.
+//
+// El pintat final de la teua escena l'has de fer com si "backBuffer" fora la pantalla.
+//
+// Ah! una cosa mes: al compilar, en Linux afegir "-lGL", en Windows afegir "-lopengl32".
+// En Mac ni idea
+
+namespace shader
+{
+    const bool init(SDL_Window* win, SDL_Texture* backBuffer,
+                    const char* vertexShader, const char* fragmentShader=nullptr);
+
+                    
+    void enable();
+    void disable();
+
+    void render();
+}

lagueirtofile

@@ -0,0 +1,5 @@
+libs = -lSDL3 -lGL
+cppflags = -D LUA_USE_LINUX -D DEBUG -g -Wall
+executable = mini_debug
+sourcepath = . lua
+buildpath = build

log.h

@@ -0,0 +1,27 @@
+#pragma once
+#include <stdio.h>
+#include <stdarg.h>
+
+#ifdef DEBUG
+enum LogLevel { LOG_OK, LOG_FAIL, LOG_WARN, LOG_INFO, LOG_LUART, LOG_LUALD, LOG_VERBOSE, LOG_UNSALTED };
+
+static inline void log_msg(enum LogLevel level, const char *fmt, ...) {
+    va_list args;
+    va_start(args, fmt);
+
+    switch (level) {
+        case LOG_OK:   printf("[\033[1;32m OK \033[0m] "); break;
+        case LOG_FAIL: printf("[\033[1;31mFAIL\033[0m] "); break;
+        case LOG_WARN: printf("[\033[1;33mWARN\033[0m] "); break;
+        case LOG_INFO: printf("[\033[1;34mINFO\033[0m] "); break;
+        case LOG_LUART:  printf("[\033[1;35mLUA RUNTIME ERROR\033[0m] "); break;
+        case LOG_LUALD:  printf("[\033[1;35mLUA LOADING ERROR\033[0m] "); break;
+        case LOG_VERBOSE: printf("  - "); break;
+        case LOG_UNSALTED: break;
+    }
+    vprintf(fmt, args);
+    va_end(args);
+}
+#else
+#define log_msg(...) ((void)0)
+#endif

lua/loadlib.c

@@ -653,9 +653,119 @@ static void findloader (lua_State *L, const char *name) {
   }
 }
 
+// [RZC 12/03/2026] ==================================
+// Soport per a rutes relatives i absolutes
+//
+static void resolve_module_name(lua_State *L, char *out, size_t outsz) {
+    const char *req = luaL_checkstring(L, 1);
+
+    // 1. RUTA ABSOLUTA: empieza por ':'
+    if (req[0] == ':') {
+        strncpy(out, req + 1, outsz - 1);
+        out[outsz - 1] = '\0';
+        return;
+    }
+
+    // 2. Obtener módulo llamador
+    lua_Debug ar;
+    if (!lua_getstack(L, 1, &ar)) {
+        // No hay llamador → usar nombre tal cual
+        strncpy(out, req, outsz - 1);
+        out[outsz - 1] = '\0';
+        return;
+    }
+
+    lua_getinfo(L, "S", &ar);
+
+    // ar.source contiene algo como "@ia.test" o "@main"
+    const char *src = ar.source;
+    if (!src) {
+        // No viene de archivo → usar nombre tal cual
+        strncpy(out, req, outsz - 1);
+        out[outsz - 1] = '\0';
+        return;
+    }
+
+    // Quitar '@'
+    //src++;
+
+    // 3. Extraer directorio del módulo llamador
+    //    Ej: "ia.tools.other" → "ia.tools"
+    char caller[256];
+    strncpy(caller, src, sizeof(caller) - 1);
+    caller[sizeof(caller) - 1] = '\0';
+
+    char *lastdot = strrchr(caller, '.');
+    if (lastdot)
+        *lastdot = '\0';  // dejar solo el directorio
+    else
+        caller[0] = '\0'; // está en la raíz
+
+    // 4. RUTA RELATIVA HACIA ARRIBA: empieza por ".."
+    if (req[0] == '.' && req[1] == '.') {
+        // Contar cuántos '.' consecutivos hay
+        int up = 0;
+        while (req[up] == '.')
+            up++;
+
+        // up = número de puntos → niveles a subir
+        // Ej: "..test" → up=2 → subir 1 nivel
+        //      "...main" → up=3 → subir 2 niveles
+
+        int levels = up - 1;
+
+        // Copiar caller a buffer temporal
+        char temp[256];
+        strncpy(temp, caller, sizeof(temp) - 1);
+        temp[sizeof(temp) - 1] = '\0';
+
+        // Subir niveles
+        for (int i = 0; i < levels; i++) {
+            char *p = strrchr(temp, '.');
+            if (p)
+                *p = '\0';
+            else {
+                temp[0] = '\0';
+                break;
+            }
+        }
+
+        // Concatenar lo que queda después de los puntos
+        const char *rest = req + up;
+
+        if (temp[0] == '\0') {
+            // Hemos llegado a la raíz
+            strncpy(out, rest, outsz - 1);
+        } else {
+            snprintf(out, outsz, "%s.%s", temp, rest);
+        }
+
+        out[outsz - 1] = '\0';
+        return;
+    }
+
+    // 5. RUTA RELATIVA NORMAL (no empieza por ':' ni por '..')
+    if (caller[0] == '\0') {
+        // Estamos en la raíz
+        strncpy(out, req, outsz - 1);
+    } else {
+        snprintf(out, outsz, "%s.%s", caller, req);
+    }
+
+    out[outsz - 1] = '\0';
+}
+// ===================================================
 
 static int ll_require (lua_State *L) {
-  const char *name = luaL_checkstring(L, 1);
+  // [RZC 12/03/2026] ==================================
+  // Soport per a rutes relatives i absolutes
+  //
+  //const char *name = luaL_checkstring(L, 1);
+  char resolved[256];
+  resolve_module_name(L, resolved, sizeof(resolved));
+  const char *name = resolved;
+  // ===================================================
+
   lua_settop(L, 1);  /* LOADED table will be at index 2 */
   lua_getfield(L, LUA_REGISTRYINDEX, LUA_LOADED_TABLE);
   lua_getfield(L, 2, name);  /* LOADED[name] */

mini.cpp

@@ -2,12 +2,14 @@
 #include "jfile.h"
 #include <string.h>
 #include "lua.h"
-#include "gif.c"
+#include "gif.h"
 #include "gifenc.h"
-//#include "SDL2/SDL_mixer.h"
 #include "jail_audio.h"
+#include "jshader.h"
+//#include <vector>
+#include "log.h"
 
-#define MAX_TEXTURES 10
+#define MAX_SURFACES 100
 
 #ifdef MACOS_BUNDLE
 #include <libgen.h>
@@ -18,12 +20,22 @@
 #pragma pack(1)
 
 struct surface_t {
-    uint8_t *p;
+    char    *name {nullptr};
+    uint8_t *p {nullptr};
     uint16_t w, h;
     uint32_t size;
 };
 
+struct font_t {
+    struct special_char_t { uint8_t character; SDL_Rect glyph; SDL_Point displacement; };
+    int8_t spacing;
+    SDL_Rect characters[96];
+    special_char_t specials[64];
+};
 
+int         fps=0;
+int         fps_counter=0;
+uint32_t    fps_timer=0;
 char        window_title[256];
 char        config_folder[256];
 uint16_t    screen_width = 160;
@@ -35,7 +47,7 @@ bool        screen_cursor = true;
 int         desktop_width = 0;
 int         desktop_height = 0;
 
-surface_t   surfaces[MAX_TEXTURES];
+surface_t   surfaces[MAX_SURFACES];
 surface_t   *screen_surface = &surfaces[0];
 surface_t   *dest_surface = screen_surface;
 surface_t   *source_surface = NULL;
@@ -66,6 +78,7 @@ namespace ds {
     uint16_t    fill_pattern = 0b1111111111111111;
     bool        fill_trans = false;
     uint8_t     draw_palette[256];
+    uint8_t     mode = DRAWMODE_NORMAL;
 }
 
 int update_mode = UPDATE_ALWAYS;
@@ -76,12 +89,13 @@ bool should_quit = false;
 SDL_Window *mini_win;
 SDL_Renderer *mini_ren;
 SDL_Texture *mini_bak;
+SDL_Texture *mini_shadertex;
 Uint32 windowID;
 Uint32 *pixels;
 int pitch;
 
-uint32_t palette[256] = { 0x001a1c2c, 0x005d275d, 0x00b13e53, 0x00ef7d57, 0x00ffcd75, 0x00a7f070, 0x0038b764, 0x00257179,
-                         0x0029366f, 0x003b5dc9, 0x0041a6f6, 0x0073eff7, 0x00f4f4f4, 0x0094b0c2, 0x00566c86, 0x00333c57 };
+uint32_t palette[256] = { 0xFF1a1c2c, 0xFF5d275d, 0xFFb13e53, 0xFFef7d57, 0xFFffcd75, 0xFFa7f070, 0xFF38b764, 0xFF257179,
+                         0xFF29366f, 0xFF3b5dc9, 0xFF41a6f6, 0xFF73eff7, 0xFFf4f4f4, 0xFF94b0c2, 0xFF566c86, 0xFF333c57 };
 
 const char base64[65] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
 
@@ -93,15 +107,17 @@ char base64glyphs[193] = "/h/AqV/hhhh/GMYYMGz/t/eS33H477wsjjswY4IOPHEFFVVVAVAVAV
                          "AMShAAAQsjAAAwsjAAAeSzAAAcU3AAAEqRAAABVaiAAMezhAAAAAMAADH4wAASb2SAAMAttAQYcefACGOe+AAAVVAAAAbbAA";
 
 //Uint8 keymapping[6] = { SDL_SCANCODE_LEFT, SDL_SCANCODE_RIGHT, SDL_SCANCODE_UP, SDL_SCANCODE_DOWN, SDL_SCANCODE_Z, SDL_SCANCODE_X };
-const Uint8 *keys;
+const bool *keys;
 Uint8 key_just_pressed = 0;
 
 int mouse_x, mouse_y, mouse_wheel;
 Uint32 mouse_buttons;
 uint8_t mouse_just_pressed = 0;
+bool double_click = false;
+bool mouse_discard = false;
 
-SDL_GameController *gamepad = NULL;
-int8_t pad_just_pressed = SDL_CONTROLLER_BUTTON_INVALID;
+SDL_Gamepad *gamepad = NULL;
+int8_t pad_just_pressed = SDL_GAMEPAD_BUTTON_INVALID;
 
 #define MAX_SOUNDS 50
 JA_Music_t *music = NULL;
@@ -109,6 +125,8 @@ JA_Sound_t *sounds[MAX_SOUNDS];
 
 int16_t beats, num_beats = 0;
 
+void createNewProject();
+
 char* get_value_from_line(char* line) {
     char* equal_character = strchr(line, '=');
     if (equal_character == NULL) return NULL;
@@ -118,21 +136,20 @@ char* get_value_from_line(char* line) {
 
 void read_ini() {
     int size;
-    SDL_Log("Carregant 'game.ini'...");
     FILE *f = file_getfilepointer("game.ini", size); // fopen("game.ini", "r");
     char line[1024];
-    if (f == NULL) { SDL_Log("FAIL!\n"); return; }
-    SDL_Log("OK!\n");
+    if (f == NULL) { log_msg(LOG_FAIL, "No s'ha pogut obrir 'game.ini'\n"); exit(-1); }
+    log_msg(LOG_OK, "'game.ini' carregat\n");
     while (fgets(line, sizeof(line), f)) {
         char *value = get_value_from_line(line);
         if (value != NULL) {
             value[strlen(value)-1] = '\0';
-            if (strcmp(line, "title") == 0) { strcpy(window_title, value); SDL_Log("-title=%s\n", window_title); }
-            else if (strcmp(line, "config") == 0) { strcpy(config_folder, value); SDL_Log("-config=%s\n", config_folder); }
-            else if (strcmp(line, "width") == 0) { screen_width = atoi(value); SDL_Log("-screen width=%i\n", screen_width); }
-            else if (strcmp(line, "height") == 0) { screen_height = atoi(value); SDL_Log("-screen height=%i\n", screen_height); }
-            else if (strcmp(line, "zoom") == 0) { screen_zoom = atoi(value); SDL_Log("-screen zoom=%i\n", screen_zoom); }
-            else if (strcmp(line, "fullscreen") == 0) { screen_fullscreen = atoi(value); SDL_Log("-screen sullscreen=%i\n", screen_fullscreen); }
+            if (strcmp(line, "title") == 0) { strcpy(window_title, value); log_msg(LOG_VERBOSE, "title = %s\n", window_title); }
+            else if (strcmp(line, "config") == 0) { strcpy(config_folder, value); log_msg(LOG_VERBOSE, "config = %s\n", config_folder); }
+            else if (strcmp(line, "width") == 0) { screen_width = atoi(value); log_msg(LOG_VERBOSE, "screen width = %i\n", screen_width); }
+            else if (strcmp(line, "height") == 0) { screen_height = atoi(value); log_msg(LOG_VERBOSE, "screen height = %i\n", screen_height); }
+            else if (strcmp(line, "zoom") == 0) { screen_zoom = atoi(value); log_msg(LOG_VERBOSE, "screen zoom = %i\n", screen_zoom); }
+            else if (strcmp(line, "fullscreen") == 0) { screen_fullscreen = atoi(value); log_msg(LOG_VERBOSE, "screen sullscreen = %i\n", screen_fullscreen); }
             //else if (strcmp(line, "files") == 0) {
                 //lua_files = (char*)malloc(strlen(value));
             //    strcpy(lua_files, value);
@@ -140,13 +157,32 @@ void read_ini() {
         }
     }
     fclose(f);
-    SDL_Log("'game.ini' carregat!\n");
+    //SDL_Log("'game.ini' carregat!\n");
 }
 
 void pset_fast(int x, int y) {
     if (ds::trans != ds::pen_color) DEST(x, y) = ds::draw_palette[ds::pen_color];
 }
 
+void pset_bool(int x, int y) {
+    if (ds::trans != ds::pen_color) {
+        switch (ds::mode) {
+            case DRAWMODE_AND:
+                DEST(x, y) = DEST(x, y) & ds::draw_palette[ds::pen_color];
+                break;
+            case DRAWMODE_OR:
+                DEST(x, y) = DEST(x, y) | ds::draw_palette[ds::pen_color];
+                break;
+            case DRAWMODE_XOR:
+                DEST(x, y) = DEST(x, y) ^ ds::draw_palette[ds::pen_color];
+                break;
+            case DRAWMODE_NOT:
+                DEST(x, y) = ~DEST(x, y);
+                break;
+        }
+    }
+}
+
 void pset_pattern(int x, int y) {
     int pbx = x % 4, pby = y % 4;
     int pb = pbx+pby*4;
@@ -157,8 +193,29 @@ void pset_pattern(int x, int y) {
     }
 }
 
+void set_draw_mode(uint8_t mode) {
+    ds::mode = mode;
+    switch (mode) {
+        case DRAWMODE_NORMAL:
+            do_pset = pset_fast;
+            break;
+        case DRAWMODE_PATTERN:
+            do_pset = pset_pattern;
+            break;
+        case DRAWMODE_AND:
+        case DRAWMODE_OR:
+        case DRAWMODE_XOR:
+        case DRAWMODE_NOT:
+            do_pset = pset_bool;
+            break;
+        default:
+            do_pset = pset_fast;
+            break;
+    }
+}
+
 void reinit() {
-    SDL_Log("REINIT\n");
+    log_msg(LOG_INFO, "STARTING A SYSTEM REINITIALIZATION\n");
     do_pset = pset_fast;
     ds::pen_color = 6;
     ds::back_color = 0;
@@ -168,17 +225,23 @@ void reinit() {
     ds::trans=0;
     ds::fill_pattern = 0b1111111111111111;
     ds::fill_trans = false;
-    for (int i=1; i<MAX_TEXTURES; ++i) {
+    for (unsigned int i=1; i<MAX_SURFACES; ++i) freesurf(i);
+    /*{
         if (surfaces[i].p != NULL) free(surfaces[i].p);
         surfaces[i].p = NULL;
+        if (surfaces[i].name != NULL) free(surfaces[i].name);
+        surfaces[i].name = NULL;
     }
+    surfaces.clear();*/
+    dest_surface = screen_surface;
+
     for (int i=0;i<256;++i) ds::draw_palette[i]=i;
     if (file!=NULL) fclose(file);
     file = NULL;
 }
 
 void initaudio() {
-    JA_Init(48000, AUDIO_S16, 1);
+    JA_Init(48000, SDL_AUDIO_S16, 1);
     for (int i=0;i<MAX_SOUNDS;++i) sounds[i] = NULL;
 }
 
@@ -197,42 +260,69 @@ int scrh() {
 }
 
 uint8_t newsurf(int w, int h) {
-    int i = 0;
-    while (i<MAX_TEXTURES && surfaces[i].p != NULL) ++i;
-    //[TODO] Gestionar el cas en que no queden surfaces lliures
+    unsigned int i = 0;
+    while (i<MAX_SURFACES && surfaces[i].p != NULL) ++i;
+    if (i==MAX_SURFACES) return 255;
+    surfaces[i].name = nullptr;
     surfaces[i].w = w;
     surfaces[i].h = h;
     surfaces[i].size = w*h;
-    surfaces[i].p = (uint8_t*)malloc(surfaces[i].size);
+    surfaces[i].p = (uint8_t*)calloc(surfaces[i].size,1);
+    log_msg(LOG_INFO, "Surface %i creada.\n", i);
     return i;
 }
 
-uint8_t loadsurf(const char* filename) {
-    int i = 0;
-    while (i<MAX_TEXTURES && surfaces[i].p != NULL) ++i;
-    //[TODO] Gestionar el cas en que no queden surfaces lliures
+uint8_t loadsurf(const char* filename, const bool external) {
+    // Si el gif ja s'ha carregat en una textura, tornem eixa textura
+    for (unsigned int i=0; i<MAX_SURFACES; ++i)
+        if (surfaces[i].name && strcmp(surfaces[i].name, filename)==0) {
+            log_msg(LOG_INFO, "Carrega de '%s' abortada: Reusant: %i.\n", filename, i);
+            return i;
+        }
 
+    // Agafar la pròxima textura lliure
+    unsigned int i = 0;
+    while (i<MAX_SURFACES && surfaces[i].p != NULL) ++i;
+    if (i==MAX_SURFACES) return 255;
+
+    // Carregar l'arxiu de disc
     int size;
-    uint8_t *buffer = (uint8_t*)file_getfilebuffer(filename, size);
+    uint8_t *buffer;
+    if (external) {
+        buffer = (uint8_t*)file_getfilebufferex(filename, size);
+    } else {
+        buffer = (uint8_t*)file_getfilebuffer(filename, size);
+    }
+
+    // Si no s'ha pogut, petar
+    if (!buffer) {
+        log_msg(LOG_FAIL, "Error al intentar obrir l'arxiu '%s'\n", filename);
+        exit(-1);
+        return 255;
+    }
+
     surfaces[i].p = LoadGif(buffer, &surfaces[i].w, &surfaces[i].h);
     surfaces[i].size = surfaces[i].w*surfaces[i].h;
+    surfaces[i].name = (char*)malloc(strlen(filename)+1);
+    strcpy(surfaces[i].name, filename);
     free(buffer);
     
+    log_msg(LOG_INFO, "Arxiu '%s' carregat en surface: %i.\n", filename, i);
     return i;
 }
 
 void savesurf(uint8_t surface, const char* filename, uint8_t *pal, uint8_t colors)
 {
-    uint8_t depth=colors;
-    do { depth = depth >> 1; } while (depth!=0);
-    gif::gif_t *file = gif::create(filename, surfaces[surface].w, surfaces[surface].h, pal, (pal?depth:0), -1, -1);
-    memcpy(file->frame, surfaces[surface].p, surfaces[surface].w*surfaces[surface].h);
-    gif::addFrame(file, 0);
-    gif::close(file);
+    gif::write_gif(filename, surfaces[surface].p, surfaces[surface].w, surfaces[surface].h, pal, colors);
 }
 
 void freesurf(uint8_t surface) {
-    if (surfaces[surface].p != NULL) free(surfaces[surface].p);
+    if (surfaces[surface].name != NULL) free(surfaces[surface].name);
+    surfaces[surface].name = NULL;
+    if (surfaces[surface].p != NULL) {
+        free(surfaces[surface].p);
+        log_msg(LOG_INFO, "Surface %i alliberada.\n", surface);
+    }
     surfaces[surface].p = NULL;
 }
 
@@ -246,7 +336,10 @@ int surfh(uint8_t surface) {
 
 void recalculate_clip()
 {
-    ds::clip[0] = ds::clp[0]; ds::clip[1] = ds::clp[1]; ds::clip[2] = ds::clp[2]-ds::clp[0]-1; ds::clip[3] = ds::clp[3]-ds::clp[1]-1;
+    ds::clip[0] = ds::clp[0];
+    ds::clip[1] = ds::clp[1];
+    ds::clip[2] = ds::clp[2]+ds::clp[0]-1;
+    ds::clip[3] = ds::clp[3]+ds::clp[1]-1;
     if (ds::clip[0]<0) ds::clip[0]=0;
     if (ds::clip[1]<0) ds::clip[1]=0;
     if (ds::clip[2]>=dest_surface->w) ds::clip[2]=dest_surface->w-1;
@@ -266,24 +359,64 @@ void setmap(uint8_t surface) {
     map_surface = &surfaces[surface];
 }
 
-uint8_t getmap()
+uint8_t getdest()
 {
-    for (int i=0; i<MAX_TEXTURES; ++i) if (map_surface == &surfaces[i]) return i;
+    for (unsigned int i=0; i<MAX_SURFACES; ++i) if (dest_surface == &surfaces[i]) return i;
     return 0;
 }
 
+uint8_t getsource()
+{
+    for (unsigned int i=0; i<MAX_SURFACES; ++i) if (source_surface == &surfaces[i]) return i;
+    return 0;
+}
+
+uint8_t getmap()
+{
+    for (unsigned int i=0; i<MAX_SURFACES; ++i) if (map_surface == &surfaces[i]) return i;
+    return 0;
+}
+
+void shader_init(const char* vshader, const char* fshader)
+{
+    int filesize;
+    char *vshaderfile = file_getfilebuffer(vshader, filesize, true);
+
+    char *fshaderfile = nullptr;
+    if (fshader) { fshaderfile = file_getfilebuffer(fshader, filesize, true); }
+    shader::init(mini_win, mini_shadertex, vshaderfile, fshaderfile);
+}
+
+void shader_enable() { shader::enable(); }
+void shader_disable() { shader::disable(); }
+
 void createDisplay() {
     if (screen_zoom <= 0) screen_zoom = 1;
     while (screen_width*screen_zoom > desktop_width || screen_height*screen_zoom > desktop_height) screen_zoom--;
 
-    mini_win = SDL_CreateWindow(window_title, SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, screen_width*screen_zoom, screen_height*screen_zoom, screen_fullscreen?SDL_WINDOW_FULLSCREEN_DESKTOP:SDL_WINDOW_RESIZABLE);
+    mini_win = SDL_CreateWindow(window_title, screen_width*screen_zoom, screen_height*screen_zoom, SDL_WINDOW_OPENGL|(screen_fullscreen?SDL_WINDOW_FULLSCREEN:0));
     windowID = SDL_GetWindowID(mini_win);
-    mini_ren = SDL_CreateRenderer(mini_win, -1, 0);
+    SDL_SetHint(SDL_HINT_RENDER_DRIVER, "opengl");
+    mini_ren = SDL_CreateRenderer(mini_win, NULL);
     //SDL_CreateWindowAndRenderer(512,512,0,&mini_win,&mini_ren);
-    SDL_RenderSetLogicalSize(mini_ren, screen_width, screen_height);
-    SDL_ShowCursor(screen_cursor?SDL_ENABLE:SDL_DISABLE);
+    //SDL_SetRenderLogicalPresentation(mini_ren, screen_width, screen_height);
+    if (screen_cursor) SDL_ShowCursor(); else SDL_HideCursor();
     mini_bak = SDL_CreateTexture(mini_ren, SDL_PIXELFORMAT_ARGB8888, SDL_TEXTUREACCESS_STREAMING, screen_width, screen_height);
+    SDL_SetTextureScaleMode(mini_bak, SDL_SCALEMODE_NEAREST);
+    SDL_PropertiesID props = SDL_GetTextureProperties(mini_bak);
+    int real_pixelformat = SDL_GetNumberProperty(props, SDL_PROP_TEXTURE_FORMAT_NUMBER, -1);
+    if (real_pixelformat != SDL_PIXELFORMAT_ARGB8888) {
+        log_msg(LOG_FAIL, "Pixelformat incorrecte: %i\n", real_pixelformat);
+        exit(1);
+    }
+    mini_shadertex = SDL_CreateTexture(mini_ren, SDL_PIXELFORMAT_ARGB8888, SDL_TEXTUREACCESS_TARGET, screen_width*screen_zoom, screen_height*screen_zoom);
+    SDL_SetTextureScaleMode(mini_shadertex, SDL_SCALEMODE_NEAREST);
+
+    //int filesize;
+    //char *shaderfile = file_getfilebuffer("lynx.glsl", filesize);
+    shader::init(mini_win, mini_shadertex, nullptr);
     //SDL_GetWindowPosition(mini_win, &windowpos_x, &windowpos_y);
+    log_msg(LOG_OK, "Graphics subsystem initialized\n");
 }
 
 void destroyDisplay() {
@@ -293,13 +426,15 @@ void destroyDisplay() {
 }
 
 void initGamePad() {
-    const int num_joysticks = SDL_NumJoysticks();
-    if (num_joysticks>=1) {
+    int num_joysticks;
+    SDL_JoystickID *joysticks = SDL_GetJoysticks(&num_joysticks);
+    if (joysticks) {
         for (int i=0; i<num_joysticks; ++i) {
-            if (SDL_IsGameController(i)) {
-                gamepad = SDL_GameControllerOpen(i);
-                if (SDL_GameControllerGetAttached(gamepad) == SDL_TRUE) {
-                    SDL_GameControllerEventState(SDL_ENABLE);
+            if (SDL_IsGamepad(joysticks[i])) {
+                gamepad = SDL_OpenGamepad(joysticks[i]);
+                if (SDL_GamepadConnected(gamepad)) {
+                    SDL_SetGamepadEventsEnabled(true);
+                    log_msg(LOG_OK, "Gamepad found and initialized");
                     return;
                 }
             }
@@ -310,12 +445,22 @@ void initGamePad() {
 int main(int argc,char*argv[]){
     
     #ifdef DEBUG
-    SDL_LogSetPriority(SDL_LOG_CATEGORY_APPLICATION, SDL_LOG_PRIORITY_DEBUG);
+    SDL_SetLogPriority(SDL_LOG_CATEGORY_APPLICATION, SDL_LOG_PRIORITY_DEBUG);
     #endif
 
+#ifdef DEBUG
+        log_msg(LOG_UNSALTED, "MINI v%s\n",MINI_VERSION);
+#endif
+
     if (argc>1)
     {
-        if (strstr(argv[1], ".lua")!=nullptr) {
+        if (argv[1][0]=='-' && argv[1][1]=='-') {
+            const char *command = &argv[1][2];
+            if (strcmp(command, "new")==0) {
+                createNewProject();
+                exit(0);
+            }
+        } else if (strstr(argv[1], ".lua")!=nullptr) {
             file_setresourcefolder("./");
             file_setsource(SOURCE_FOLDER);
             strcpy(main_lua_file, argv[1]);
@@ -328,6 +473,7 @@ int main(int argc,char*argv[]){
         }
     }
 
+    //screen_surface = &surfaces.emplace_back();
     while (!should_quit) {
         should_exit=false;
 
@@ -355,20 +501,19 @@ int main(int argc,char*argv[]){
             if (fullscreen) screen_fullscreen=strcmp(fullscreen, "true")==0?true:false;
             const char *cursor = file_getconfigvalue("cursor");
             if (cursor) screen_cursor=strcmp(cursor, "true")?true:false;
+            const char *music_enabled = file_getconfigvalue("music");
+            if (music_enabled) JA_EnableMusic(strcmp(music_enabled, "true")==0?true:false);
+            const char *sound_enabled = file_getconfigvalue("sound");
+            if (sound_enabled) JA_EnableSound(strcmp(sound_enabled, "true")==0?true:false);
         }
 
         setdest(newsurf(screen_width, screen_height));
 
-        SDL_Init(SDL_INIT_EVERYTHING);
+        SDL_Init(SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_GAMEPAD);
 
-        SDL_DisplayMode dm;
-        if (SDL_GetDesktopDisplayMode(0, &dm) != 0)
-        {
-            SDL_Log("SDL_GetDesktopDisplayMode failed: %s", SDL_GetError());
-            return 1;
-        }
-        desktop_width = dm.w;
-        desktop_height = dm.h;
+        const SDL_DisplayMode *dm = SDL_GetDesktopDisplayMode(SDL_GetPrimaryDisplay());
+        desktop_width = dm->w;
+        desktop_height = dm->h;
 
         createDisplay();
 
@@ -380,23 +525,22 @@ int main(int argc,char*argv[]){
 
         reinit();
         initaudio();
-#ifdef DEBUG
-        debug("MINI v%s\n",MINI_VERSION);
-#endif
+
         lua_init(main_lua_file);
         lua_call_init();
 
         Uint32 dt=SDL_GetTicks();
         key_just_pressed = 0;
-        pad_just_pressed = SDL_CONTROLLER_BUTTON_INVALID;
+        pad_just_pressed = SDL_GAMEPAD_BUTTON_INVALID;
         mouse_just_pressed = 0;
+        mouse_wheel = 0;
+        double_click = false;
         while(!should_exit) {
-            mouse_wheel = 0;
             if (update_mode==UPDATE_WAIT) SDL_WaitEvent(NULL);
             else if (update_mode==UPDATE_TIMEOUT) SDL_WaitEventTimeout(NULL, timeout);
             while(SDL_PollEvent(&mini_eve)) {
-                if (mini_eve.type == SDL_QUIT) { should_exit=true; should_quit=true; break; }
-                if (mini_eve.type == SDL_KEYDOWN) {
+                if (mini_eve.type == SDL_EVENT_QUIT) { should_exit=true; should_quit=true; break; }
+                if (mini_eve.type == SDL_EVENT_KEY_DOWN) {
 /*
                     if (mini_eve.key.keysym.scancode == SDL_SCANCODE_F2) {
                         screen_zoom+=2; if (screen_zoom>=10) screen_zoom=2;
@@ -412,7 +556,7 @@ int main(int argc,char*argv[]){
                     }
 */
 #ifdef DEBUG
-                    if (mini_eve.key.keysym.scancode == SDL_SCANCODE_F12) {
+                    if (mini_eve.key.scancode == SDL_SCANCODE_F12) {
                         if (lua_is_playing()) {
                             lua_quit();
                             quitaudio();
@@ -420,23 +564,30 @@ int main(int argc,char*argv[]){
                         } else {
                             should_exit=true;
                         }
-                    } else if (mini_eve.key.keysym.scancode == SDL_SCANCODE_F5) {
+                    } else if (mini_eve.key.scancode == SDL_SCANCODE_F5) {
                         should_exit=true;
                     } else {
-                        key_just_pressed = mini_eve.key.keysym.scancode;
+                        key_just_pressed = mini_eve.key.scancode;
                     }
 #else
-                    key_just_pressed = mini_eve.key.keysym.scancode;
+                    key_just_pressed = mini_eve.key.scancode;
 #endif
                 }
-                if (mini_eve.type == SDL_MOUSEBUTTONUP) {
-                    mouse_just_pressed = mini_eve.button.button;
+                if (mini_eve.type == SDL_EVENT_MOUSE_BUTTON_UP) {
+                    if (mouse_discard)
+                        mouse_discard = false;
+                    else
+                        if (mini_eve.button.clicks==2 && mini_eve.button.button==SDL_BUTTON_LEFT) {
+                            double_click = true;
+                        } else {
+                            mouse_just_pressed = mini_eve.button.button;
+                        }
                 }
-                if (mini_eve.type == SDL_MOUSEWHEEL) {
+                if (mini_eve.type == SDL_EVENT_MOUSE_WHEEL) {
                     mouse_wheel = mini_eve.wheel.y;
                 }
-                if (mini_eve.type == SDL_CONTROLLERBUTTONDOWN) {
-                    pad_just_pressed = mini_eve.cbutton.button;
+                if (mini_eve.type == SDL_EVENT_GAMEPAD_BUTTON_DOWN) {
+                    pad_just_pressed = mini_eve.gbutton.button;
                 }
                 /*if ( (mini_eve.type == SDL_WINDOWEVENT) &&
                      (mini_eve.window.windowID == windowID) &&
@@ -447,12 +598,12 @@ int main(int argc,char*argv[]){
                 }*/
             }
             keys = SDL_GetKeyboardState(NULL);
-            int real_mouse_x, real_mouse_y;
+            float real_mouse_x, real_mouse_y;
             mouse_buttons = SDL_GetMouseState(&real_mouse_x, &real_mouse_y);
             float mx, my;
-            SDL_RenderWindowToLogical(mini_ren, real_mouse_x, real_mouse_y, &mx, &my);
-            mouse_x = int(mx);
-            mouse_y = int(my);
+            SDL_RenderCoordinatesFromWindow(mini_ren, real_mouse_x, real_mouse_y, &mx, &my);
+            mouse_x = int(mx/screen_zoom);
+            mouse_y = int(my/screen_zoom);
             //mouse_x /= screen_zoom; mouse_y /= screen_zoom;
             
             if (SDL_GetTicks()-dt>13) {
@@ -466,22 +617,35 @@ int main(int argc,char*argv[]){
                 if (beats>0)beats--;
                 key_just_pressed = 0;
                 mouse_just_pressed = 0;
-                pad_just_pressed = SDL_CONTROLLER_BUTTON_INVALID;
+                double_click = false;
+                mouse_wheel = 0;
+                pad_just_pressed = SDL_GAMEPAD_BUTTON_INVALID;
             }
+            SDL_SetRenderTarget(mini_ren, mini_shadertex);
             SDL_SetRenderDrawColor(mini_ren, 0, 0, 0, 255);
             SDL_RenderClear(mini_ren);
             SDL_LockTexture(mini_bak, NULL, (void**)&pixels, &pitch);
             for (uint32_t i=0;i<screen_surface->size;++i) pixels[i] = palette[screen_surface->p[i]];
             SDL_UnlockTexture(mini_bak);
-            SDL_RenderCopy(mini_ren, mini_bak, NULL, NULL);
-            SDL_RenderPresent(mini_ren);
+            SDL_RenderTexture(mini_ren, mini_bak, NULL, NULL); //NEW
+
+            shader::render();
+            //SDL_RenderTexture(mini_ren, mini_bak, NULL, NULL);
+            //SDL_RenderPresent(mini_ren);
+
+            fps_counter++;
+            if (SDL_GetTicks()>=(fps_timer+1000)) {
+                fps = fps_counter;
+                fps_counter=0;
+                fps_timer = SDL_GetTicks();
+            }
         }
         lua_quit();
         quitaudio();
 
         //Mix_Quit();
 
-        for (int i=0;i<MAX_TEXTURES;++i) freesurf(i);
+        for (unsigned int i=0;i<MAX_SURFACES;++i) freesurf(i);
         dest_surface = source_surface = map_surface = NULL;
         destroyDisplay();
         SDL_Quit();
@@ -491,7 +655,7 @@ int main(int argc,char*argv[]){
 }
 
 void simple_pset(int x, int y, uint8_t color) {
-    x -= ds::origin[0]; y -= ds::origin[1];
+    x += ds::origin[0]; y += ds::origin[1];
     if (x < ds::clip[0] || x > ds::clip[2] || y < ds::clip[1] || y > ds::clip[3]) return;
     if (x < 0 || x >= dest_surface->w || y < 0 || y >= dest_surface->h) return;
     DEST(x, y) = color;
@@ -499,12 +663,13 @@ void simple_pset(int x, int y, uint8_t color) {
 
 void cls(uint8_t color) {
     const uint8_t col = ds::draw_palette[color];
-    for (int y=ds::clip[1]; y<=ds::clip[3];++y) {
+    /*for (int y=ds::clip[1]; y<=ds::clip[3];++y) {
         for (int x=ds::clip[0]; x<=ds::clip[2];++x) {
             simple_pset(x,y,col);
         }
-    }
-    //SDL_memset(dest_surface->p, color, dest_surface->size);
+    }*/
+
+    SDL_memset(dest_surface->p, col, dest_surface->size);
 }
 
 void color(uint8_t color) {
@@ -540,11 +705,12 @@ uint32_t *loadpal(const char* filename, uint16_t *palsize) {
 }
 
 void setpal(uint32_t *pal) {
-    memcpy(palette, pal, 1024);
+    for (int i=0; i<256; ++i) palette[i] = pal[i] | 0xff000000;
+    //memcpy(palette, pal, 1024);
 }
 
 void setcolor(uint8_t index, uint32_t color) {
-    palette[index] = color;
+    palette[index] = color | 0xff000000;
 }
 
 uint32_t getcolor(uint8_t index) {
@@ -560,7 +726,7 @@ uint8_t gettrans() {
 }
 
 void subpal(uint8_t index, uint8_t color) {
-    ds::draw_palette[index] = color;
+    ds::draw_palette[SDL_clamp(index,0,255)] = SDL_clamp(color,0,255);
 }
 
 void reset_subpal() {
@@ -594,7 +760,7 @@ void palt(uint8_t col, bool t) {
 */
 
 void pset(int x, int y) {
-    x -= ds::origin[0]; y -= ds::origin[1];
+    x += ds::origin[0]; y += ds::origin[1];
     if (x < ds::clip[0] || x > ds::clip[2] || y < ds::clip[1] || y > ds::clip[3]) return;
     do_pset(x,y);
 }
@@ -605,7 +771,7 @@ void pset(int x, int y, uint8_t color) {
 }
 
 uint8_t pget(int x, int y) {
-    x -= ds::origin[0]; y -= ds::origin[1];
+    x += ds::origin[0]; y += ds::origin[1];
     //if (x < 0 || x > (dest_surface->w-1) || y < 0 || y > (dest_surface->h-1)) return 0;
     if (x < ds::clip[0] || x > ds::clip[2] || y < ds::clip[1] || y > ds::clip[3]) return 0;
     return DEST(x, y);
@@ -675,31 +841,34 @@ void vline(int x, int y0, int y1, uint8_t color) {
     vline(x, y0, y1);
 }
 
-void rect(int x0, int y0, int x1, int y1) {
-    hline(x0, y0, x1);
-    hline(x0, y1, x1);
-    vline(x0, y0, y1);
-    vline(x1, y0, y1);
+void rect(int x, int y, int w, int h) {
+    int x1 = w+x-1;
+    int y1 = h+y-1;
+    hline(x, y, x1);
+    hline(x, y1, x1);
+    vline(x, y, y1);
+    vline(x1, y, y1);
 }
 
-void rect(int x0, int y0, int x1, int y1, uint8_t color) {
+void rect(int x, int y, int w, int h, uint8_t color) {
     ds::pen_color = color;
-    rect(x0, y0, x1, y1);
+    rect(x, y, w, h);
 }
 
-void rectfill(int x0, int y0, int x1, int y1) {
-    for (int y=y0; y<=y1; ++y) hline(x0, y, x1);
+void rectfill(int x, int y, int w, int h) {
+    int x1 = w+x-1;
+    int y1 = h+y-1;
+    for (int i=y; i<=y1; ++i) hline(x, i, x1);
 }
 
-void rectfill(int x0, int y0, int x1, int y1, uint8_t color) {
+void rectfill(int x, int y, int w, int h, uint8_t color) {
     ds::pen_color = color;
-    rectfill(x0, y0, x1, y1);
+    rectfill(x, y, w, h);
 }
 
 void fillp(uint16_t pat, bool transparent) {
     ds::fill_trans = true; //transparent;
     ds::fill_pattern = pat;
-    do_pset=(pat==0xffff?pset_fast:pset_pattern);
 }
 
 void print_symbol(char sym, int x, int y) {
@@ -828,6 +997,77 @@ void circfill(int x, int y, uint8_t r, uint8_t color) {
     circfill(x, y, r);
 }
 
+
+void roundrect(int x, int y, int w, int h, uint8_t r) {
+    int xi=0, yi=r;
+    int d=3-2*r;
+
+    int xf = w+x-1;
+    int yf = h+y-1;
+    int x1 = x+r, y1 = y+r;
+    int x2 = xf-r, y2 = yf-r;
+    hline(x1, y, x2);
+    hline(x1, yf, x2);
+    vline(x, y1, y2);
+    vline(xf, y1, y2);
+
+    while (yi>=xi++) {
+        d += d>0 ? 4*(xi-yi--)+10 : 4*xi+6;
+        pset(x2+xi, y2+yi);
+        pset(x1-xi, y2+yi);
+        pset(x2+xi, y1-yi);
+        pset(x1-xi, y1-yi);
+        pset(x2+yi, y2+xi);
+        pset(x1-yi, y2+xi);
+        pset(x2+yi, y1-xi);
+        pset(x1-yi, y1-xi);
+    }
+}
+
+void roundrect(int x, int y, int w, int h, uint8_t r, uint8_t color) {
+    ds::pen_color=color;
+    roundrect(x, y, w, h, r);
+}
+
+void roundrectfill(int x, int y, int w, int h, uint8_t r) {
+    int xi=0, yi=r;
+    int d=3-2*r;
+
+    int xf = w+x-1;
+    int yf = h+y-1;
+    int x1 = x+r, y1 = y+r;
+    int x2 = xf-r, y2 = yf-r;
+    for (int i=y1; i<=y2; ++i) hline(x, i, xf);
+
+    while (yi>=xi++) {
+        d += d>0 ? 4*(xi-yi--)+10 : 4*xi+6;
+        hline(x1-xi, y2+yi, x2+xi);
+        hline(x1-xi, y1-yi, x2+xi);
+        hline(x1-yi, y2+xi, x2+yi);
+        hline(x1-yi, y1-xi, x2+yi);
+    }
+}
+
+void roundrectfill(int x, int y, int w, int h, uint8_t r, uint8_t color) {
+    ds::pen_color=color;
+    roundrectfill(x, y, w, h, r);
+}
+/*
+void roundrectfill(int x, int y, uint8_t r) {
+    int xi=0, yi=r;
+    int d=3-2*r;
+    (*fun_ptr)(x, y, xi, yi);
+    while (yi>=xi++) {
+        d += d>0 ? 4*(xi-yi--)+10 : 4*xi+6;
+        (*fun_ptr)(x, y, xi, yi);
+    }
+}
+
+void roundrectfill(int x, int y, uint8_t r, uint8_t color) {
+    ds::pen_color=color;
+    roundrectfill(x, y, r);
+}
+*/
 void _drawoval(int xc, int yc, int x, int y, float xf, float yf) {
     pset((xc+x)*xf, (yc+y)*yf);
     pset((xc-x)*xf, (yc+y)*yf);
@@ -882,11 +1122,13 @@ void ovalfill(int x0, int y0, int x1, int y1, uint8_t color) {
 }
 
 uint8_t sget(int x, int y) {
+    if (!source_surface) return 0;
     if (x < 0 || x > (source_surface->w-1) || y < 0 || y > (source_surface->h-1)) return 0;
     return SOURCE(x, y);
 }
 
 void sset(int x, int y) {
+    if (!source_surface) return;
     if (x < 0 || x > (source_surface->w-1) || y < 0 || y > (source_surface->h-1)) return;
     SOURCE(x, y) = ds::pen_color;
 }
@@ -897,6 +1139,7 @@ void sset(int x, int y, uint8_t color) {
 }
 
 void spr(uint8_t n, int x, int y, float w, float h, bool flip_x, bool flip_y) {
+    if (!source_surface) return;
     int tx = (n%(source_surface->w >> 3))<<3;
     int ty = (n/(source_surface->w >> 3))<<3;
     int tw = w*8 - 1;
@@ -1022,23 +1265,25 @@ void tvline(int x, int y0, int y1, float mx, float my, float mdx, float mdy) {
 }
 
 uint8_t mget(int celx, int cely) {
+    if (!map_surface) return 0;
     if (celx < 0 || celx > (map_surface->w-1) || cely < 0 || cely > (map_surface->h-1)) return 0;
     return TILES(celx, cely);
 }
 
 void mset(int celx, int cely, uint8_t snum) {
+    if (!map_surface) return;
     if (celx < 0 || celx > (map_surface->w-1) || cely < 0 || cely > (map_surface->h-1)) return;
     TILES(celx, cely) = snum;
 }
 
 void map() { //int celx, int cely, int sx, int sy, uint8_t celw, uint8_t celh, uint8_t layer) {
     if (map_surface==NULL) return;
-    uint8_t celw = map_surface->w >> 3;
-    uint8_t celh = map_surface->h >> 3;
+    int celw = map_surface->w;// >> 3;
+    int celh = map_surface->h;// >> 3;
     int celx = 0;
     int cely = 0;
     //if (celw <= 0 || celh <= 0 || celw >= TILES_WIDTH || celh >= TILES_HEIGHT) return;
-    int sx = -ds::origin[0]; int sy = -ds::origin[1];
+    int sx = ds::origin[0]; int sy = ds::origin[1];
     if (sx+celw*8 < ds::clip[0] || sx > ds::clip[2] || sy+celh*8 < ds::clip[1] || sy > ds::clip[3]) return;
     if (sx<0) {
         int diff = -sx/8;
@@ -1052,10 +1297,15 @@ void map() { //int celx, int cely, int sx, int sy, uint8_t celw, uint8_t celh, u
         celh -= diff;
         sy += diff*8;
     }
-    sx += ds::origin[0]; sy += ds::origin[1];
+    sx -= ds::origin[0]; sy -= ds::origin[1];
     for (int y=0; y<celh; ++y) {
         for (int x=0; x<celw; ++x) {
-            spr(mget(celx+x, cely+y), sx+x*8, sy+y*8);
+            const uint8_t tile = mget(celx+x, cely+y);
+            if (tile==0) continue;
+            const int fx = sx+(x*8)+ds::origin[0];
+            const int fy = sy+(y*8)+ds::origin[1];
+            if ( (fx+8<ds::clip[0]) || (fy+8<ds::clip[1]) || (fx>ds::clip[2])  || (fy>ds::clip[3]) ) continue;
+            spr(tile, sx+x*8, sy+y*8);
         }
     }
 }
@@ -1086,7 +1336,7 @@ bool anykey() {
 
 bool pad(int8_t i) {
     if (!gamepad) return false;
-    return SDL_GameControllerGetButton(gamepad, SDL_GameControllerButton(i)) == 1;
+    return SDL_GetGamepadButton(gamepad, SDL_GamepadButton(i)) == 1;
 }
 
 bool padp(int8_t i) {
@@ -1103,11 +1353,11 @@ int wpad() {
 }
 
 int mousex() {
-    return mouse_x;
+    return mouse_x-ds::origin[0];
 }
 
 int mousey() {
-    return mouse_y;
+    return mouse_y-ds::origin[1];
 }
 
 int mwheel() {
@@ -1115,13 +1365,28 @@ int mwheel() {
 }
 
 bool mbtn(uint8_t i) {
-    return mouse_buttons & SDL_BUTTON(i);
+    if (mouse_discard) return false;
+    return mouse_buttons & SDL_BUTTON_MASK(i);
 }
 
 bool mbtnp(uint8_t i) {
     return mouse_just_pressed == i;
 }
 
+bool doubleclick() {
+    return double_click;
+}
+
+void mdiscard() {
+    mouse_discard = true;
+}
+
+bool minside(int x, int y, int w, int h) {
+    const int mx = mouse_x-ds::origin[0];
+    const int my = mouse_y-ds::origin[1];
+    return (mx>=x) && (my>=y) && (mx<x+w) && (my<y+h);
+}
+
 float time() {
     return float(SDL_GetTicks())/1000.0f;
 }
@@ -1139,6 +1404,10 @@ int rnd(int x) {
     return rand()%x;
 }
 
+int getfps() {
+    return fps;
+}
+
 void playmusic(const char *filename, const int loop) {
     int size;
     char *buffer = file_getfilebuffer(filename, size);
@@ -1169,6 +1438,18 @@ float musicpos()
     return JA_GetMusicPosition();
 }
 
+void enablemusic(const bool value)
+{
+    JA_EnableMusic(value);
+    file_setconfigvalue("music", value?"true":"false");
+}
+
+const bool ismusicenabled()
+{
+    return JA_IsMusicEnabled();
+}
+
+
 int loadsound(const char *filename) {
     int size;
     char *buffer = file_getfilebuffer(filename, size);
@@ -1196,6 +1477,17 @@ void stopsound(int soundchannel) {
     //Mix_HaltChannel(soundchannel);
 }
 
+void enablesound(const bool value)
+{
+    JA_EnableSound(value);
+    file_setconfigvalue("sound", value?"true":"false");
+}
+
+const bool issoundenabled()
+{
+    return JA_IsSoundEnabled();
+}
+
 int getzoom() {
     return screen_zoom;
 }
@@ -1232,7 +1524,7 @@ bool getcursor() {
 
 void setcursor(const bool value) {
     screen_cursor=value;
-    SDL_ShowCursor(screen_cursor?SDL_ENABLE:SDL_DISABLE);
+    if (screen_cursor) SDL_ShowCursor(); else SDL_HideCursor();
 }
 
 const char* getconfig(const char* key) {
@@ -1252,7 +1544,42 @@ void setupdatemode(const int value, const int t) {
     timeout = t;
 }
 
+int getupdatemode() {
+    return update_mode;
+}
+
 void exit() {
     should_exit = true;
     should_quit = true;
 }
+
+void createNewProject() {
+    if (file_createFolder("data")) {
+        log_msg(LOG_OK, "Directori 'data' creat\n");
+    } else {
+        log_msg(LOG_FAIL, "No s'ha pogut crear la carpeta 'data'\n");
+        exit(-1);
+    }
+
+    FILE *f = fopen("./data/game.ini", "w");
+    if (f) {
+        log_msg(LOG_OK, "Arxiu 'data/game.ini' creat\n");
+    } else {
+        log_msg(LOG_FAIL, "No s'ha pogut crear l'arxiu 'data/game.ini'\n");
+        exit(-1);
+    }
+    fprintf(f, "title=NEW MINI PROJECT\nconfig=newminiproject\nwidth=320\nheight=240\nzoom=2\n");
+    fclose(f);
+
+    f = fopen("./data/main.lua", "w");
+    if (f) {
+        log_msg(LOG_OK, "Arxiu 'data/main.lua' creat\n");
+    } else {
+        log_msg(LOG_FAIL, "No s'ha pogut crear l'arxiu 'data/main.lua'\n");
+        exit(-1);
+    }
+    fprintf(f, "function mini.init()\n\nend\n\nfunction mini.update()\n    surf.cls(0)\nend\n");
+    fclose(f);
+
+    log_msg(LOG_OK, "Projecte nou creat. Ja està fet lo més dificil del jailgame!\n");
+}

mini.h

@@ -1,6 +1,6 @@
 #pragma once
 
-#include <SDL2/SDL.h>
+#include <SDL3/SDL.h>
 
 #include "version.h"
 
@@ -112,13 +112,20 @@
 #define KEY_RALT 230
 #define KEY_RGUI 231
 
+#define DRAWMODE_NORMAL 0
+#define DRAWMODE_PATTERN 1
+#define DRAWMODE_AND 2
+#define DRAWMODE_OR 3
+#define DRAWMODE_XOR 4
+#define DRAWMODE_NOT 5
+
 void loop();
 
 int scrw();
 int scrh();
 
 uint8_t newsurf(int w, int h);
-uint8_t loadsurf(const char* filename);
+uint8_t loadsurf(const char* filename, const bool external = false);
 void savesurf(uint8_t surface, const char* filename, uint8_t *pal, uint8_t colors=0);
 void freesurf(uint8_t surface);
 int surfw(uint8_t surface);
@@ -127,8 +134,14 @@ int surfh(uint8_t surface);
 void setdest(uint8_t surface);
 void setsource(uint8_t surface);
 void setmap(uint8_t surface);
+uint8_t getdest();
+uint8_t getsource();
 uint8_t getmap();
 
+void shader_init(const char* vshader, const char* fshader);
+void shader_enable();
+void shader_disable();
+
 void cls(uint8_t color=0);
 void color(uint8_t color=6);
 void bcolor(uint8_t color=0);
@@ -142,6 +155,7 @@ uint8_t gettrans();
 void subpal(uint8_t index, uint8_t color);
 void reset_subpal();
 
+void set_draw_mode(uint8_t mode);
 void pset(int x, int y);
 void pset(int x, int y, uint8_t color);
 
@@ -156,11 +170,11 @@ void hline(int x0, int y, int x1, uint8_t color);
 void vline(int x, int y0, int y1);
 void vline(int x, int y0, int y1, uint8_t color);
 
-void rect(int x0, int y0, int x1, int y1);
-void rect(int x0, int y0, int x1, int y1, uint8_t color);
+void rect(int x, int y, int w, int h);
+void rect(int x, int y, int w, int h, uint8_t color);
 
-void rectfill(int x0, int y0, int x1, int y1);
-void rectfill(int x0, int y0, int x1, int y1, uint8_t color);
+void rectfill(int x, int y, int w, int h);
+void rectfill(int x, int y, int w, int h, uint8_t color);
 
 void fillp(uint16_t pat, bool transparent = false);
 
@@ -179,6 +193,12 @@ void circ(int x, int y, uint8_t r, uint8_t color);
 void circfill(int x, int y, uint8_t r = 4);
 void circfill(int x, int y, uint8_t r, uint8_t color);
 
+void roundrect(int x, int y, int w, int h, uint8_t r);
+void roundrect(int x, int y, int w, int h, uint8_t r, uint8_t color);
+
+void roundrectfill(int x, int y, int w, int h, uint8_t r);
+void roundrectfill(int x, int y, int w, int h, uint8_t r, uint8_t color);
+
 void oval(int x0, int y0, int x1, int y1);
 void oval(int x0, int y0, int x1, int y1, uint8_t color);
 
@@ -215,13 +235,15 @@ int mousey();
 int mwheel();
 bool mbtn(uint8_t i);
 bool mbtnp(uint8_t i);
+bool doubleclick();
+void mdiscard();
+bool minside(int x, int y, int w, int h);
 
 float time();
 bool beat(int16_t i);
 
 int rnd(int x);
-
-#define debug printf
+int getfps();
 
 void playmusic(const char *filename, const int loop=-1);
 void pausemusic();
@@ -229,11 +251,15 @@ void resumemusic();
 void stopmusic(const int t=1000);
 void musicpos(float value);
 float musicpos();
+void enablemusic(const bool value);
+const bool ismusicenabled();
 
 int loadsound(const char *filename);
 void freesound(int soundfile);
 int playsound(int soundfile, const int volume=-1);
 void stopsound(int soundchannel);
+void enablesound(const bool value);
+const bool issoundenabled();
 
 int getzoom();
 void setzoom(const int value);
@@ -251,5 +277,6 @@ const char *configfolder();
 #define UPDATE_WAIT     1
 #define UPDATE_TIMEOUT  2
 void setupdatemode(const int value, const int t=0);
+int getupdatemode();
 
 void exit();

tools/fonted/data/game.ini

@@ -0,0 +1,5 @@
+title=FONTED
+config=fonted
+width=320
+height=240
+zoom=2

tools/fonted/data/main.lua

@@ -0,0 +1,122 @@
+require "ui"
+
+update = nil
+protofont_surface = nil
+protofont_name = nil
+
+function mini.init()
+    pal.trans(255)
+    surf.cls(0)
+    update = any_update
+    --ui.filedialog.show(select_file)
+end
+
+function select_file(filename)
+    if protofont_surface then surf.free(protofont_surface) end
+    protofont_name = filename:match("([^/]+)$")
+    protofont_surface = surf.loadex(filename)
+end
+
+function mini.update()
+    view.origin(0,0)
+    for i=0,15 do
+        draw.rectf(i*8, 0, 8, 8, i)
+    end
+    update()
+end
+
+seltab = 1
+
+function draw_big_char(x,y,w,h)
+    if protofont_surface then
+        surf.source(protofont_surface)
+        for yy=0,h-1 do
+            for xx=0,w-1 do
+                if surf.pixel(x+xx, y+yy)~=0 then
+                    draw.rectf(xx*8, yy*8, 7, 7, 0)
+                else
+                    draw.rectf(xx*8, yy*8, 7, 7, 12)
+                end
+            end
+        end
+    end
+end
+
+function any_update()
+    surf.cls(0)
+
+    view.origin(4,4)
+    draw.rrectf(0,0,140,232,3,15)
+    ui.button("NEW",4,4,30,11, {7,6,5})
+    ui.button("LOAD",36,4,30,11, {9,10,11})
+    ui.button("SAVE",68,4,30,11, {2,3,4})
+
+    view.origin(8,24)
+    local w,h = 128,20
+    if protofont_surface then w,h = surf.size(protofont_surface) end
+    draw.rrectf(0,0,132,h+35,2,14)
+
+    draw.text("SURFACE:",4,4,12)
+    if protofont_surface then
+        draw.text(protofont_name,36,4,12)
+        --local w,h = surf.size(protofont_surface)
+        local x,y = 6,15
+        surf.source(protofont_surface)
+        pal.subpal(1,12)
+        draw.surf(0,0,w,h,x,y,w,h)
+        pal.subpal(1)
+        draw.rect(x-1,y-1,w+2,h+2,0)
+        draw.rrect(x-2,y-2,w+4,h+4,2,12)
+        draw.text(tostring(w)..","..tostring(h), 10, 100, 3)
+    else
+        draw.text("<none>",36,4,12)
+    end
+    if ui.button("LOAD",98,20+h,30,11, {9,10,11}) then
+        ui.filedialog.show(select_file)
+    end
+
+
+    --view.origin(4,140)
+    --draw.rrectf(0,0,140,68,3,15)
+
+    view.origin(148,4)
+
+    draw.rrectf(0,0,21,12,3,14)
+    draw.text("BASE",3,2,12)
+
+    draw.rrectf(22,0,45,12,3,15)
+    draw.text("DIACRITICS",25,2,0)
+    -- acute(Á), grave(À); diaeresis(Ä), circumflex(Â); cedilla(Ç), tilde(Ñ)
+
+    draw.rrectf(68,0,49,12,3,15)
+    draw.text("PRECOMPOSED",71,2,0)
+
+    draw.rrectf(0,8,140,140,3,14)
+
+    view.origin(152,18)
+    draw.text("CARÀCTER ACTUAL:65(A)",0,0,0)
+    view.origin(152,25)
+    draw_big_char(7,7,7,7)
+
+    ui.button("<",70,2,9,9, {9,10,11})
+    --draw.rrectf(80,2,16,10,2,15)
+    draw.rrectf(80,2,15,9,2,13)
+    draw.text("240",82,4,15)
+    ui.button(">",96,2,9,9, {9,10,11})
+
+
+    view.origin(152,144)
+    local x,y=0,0
+    for c=32,127 do
+        draw.rectf(x,y,7,9,12)
+        draw.rect(x,y,7,9,0)
+        draw.text(string.char(c),x+2,y+2,0)
+        x=x+8
+        if x>=128 then
+            x=0
+            y=y+10
+        end
+    end
+    draw.text("ÁÄÉÍÓÚáéíóúÀÈÌÒÙàèìòùñÑçÇ", x, y+8, 12)
+
+end

tools/fonted/data/ui.lua

@@ -0,0 +1,146 @@
+
+ui = {
+    button = function(text, x, y, w, h, color)
+        local text_x = (w-(#text*4))/2
+        draw.rrectf(x,y+1,w,h,2,color[1])
+        if mouse.inside(x,y,w,h) then
+            if mouse.down(mouse.LEFT) then y=y+1 end
+            draw.rrectf(x,y,w,h,2,color[3])
+            if mouse.press(mouse.LEFT) then return true end
+        else
+            draw.rrectf(x,y,w,h,2,color[2])
+        end
+        local text_y = (h-5)/2
+        draw.text(text,x+text_x+1,y+text_y,color[1])
+        return false
+    end,
+
+    filedialog = {
+        folder = nil,
+        files = nil,
+        dir = ".",
+        selected = 0,
+        offset = 0,
+        lift_height = -1,
+        lift_top = 0,
+        old_update = nil,
+        callback = nil,
+
+        show = function(callback)
+            if not ui.filedialog.folder then
+                ui.filedialog.folder=surf.new(5,4)
+                surf.target(ui.filedialog.folder)
+                for i=0,4 do for j=0,3 do surf.pixel(i,j,0) end end
+                for i=2,4 do surf.pixel(i,0,255) end
+                surf.target(0)
+            end
+            ui.filedialog.loadDir(".")
+            ui.filedialog.callback = callback
+            ui.filedialog.old_update = update
+            update = ui.filedialog.update
+        end,
+
+        loadDir = function(path)
+            ui.filedialog.files = sys.dir(path)
+            if #ui.filedialog.files > 0 then
+                ui.filedialog.dir = ui.filedialog.files[1].name:match("(.+)/[^/]+$")
+            else
+                ui.filedialog.dir = path
+            end
+            table.insert(ui.filedialog.files, 1, { dir=true, name=".." })
+            ui.filedialog.selected = 0
+            ui.filedialog.offset = 0
+            ui.filedialog.lift_height=-1
+            ui.filedialog.lift_top=0
+            if #ui.filedialog.files>23 then
+                ui.filedialog.lift_height=23*161/#ui.filedialog.files
+            end
+        end,
+
+        goBack = function()
+            ui.filedialog.dir = ui.filedialog.dir:match("(.+)/[^/]+$")
+            ui.filedialog.loadDir(ui.filedialog.dir)
+        end,
+
+        select = function()
+            if ui.filedialog.files[ui.filedialog.selected].dir then
+                local filename = ui.filedialog.files[ui.filedialog.selected].name:match("([^/]+)$")
+                ui.filedialog.loadDir(ui.filedialog.dir.."/"..filename)
+            else
+                update = ui.filedialog.old_update
+                ui.filedialog.callback(ui.filedialog.files[ui.filedialog.selected].name)
+            end
+        end,
+
+        update = function()
+            pal.trans(255)
+            view.origin(20, 20)
+            draw.rrectf(0,0,280,200,3,15)
+            draw.rrectf(4,4,272,9,2,12)
+            draw.rrectf(4,17,272,163,2,12)
+            if ui.filedialog.lift_height>0 then draw.rrectf(271,18+ui.filedialog.lift_top,4,ui.filedialog.lift_height,2,14) end
+
+            if ui.button("OK",192,184,40,11,{9,10,11}) then ui.filedialog.select() end
+            if ui.button("CANCEL",236,184,40,11,{1,2,3}) then update = ui.filedialog.old_update end
+
+            local y = 19
+            draw.text(ui.filedialog.dir, 6, 6, 0)
+
+            surf.source(ui.filedialog.folder)
+
+            local count = 0
+            for k,file in ipairs(ui.filedialog.files) do
+                local filename = file.name:match("([^/]+)$")
+                if count < ui.filedialog.offset then goto continue end
+                --if not ui.filedialog.filter or filename:match("%."..ui.filedialog.filter.."$") then
+                if mouse.inside(4,y-1,272,7) then
+                --if mx>4 and mx<268 and my>=y-1 and my<y+6 then
+                    draw.rectf(4,y-1,272,7,13)
+                    if mouse.dblclick() then
+                        ui.filedialog.select()
+                    elseif mouse.press(mouse.LEFT) then
+                        ui.filedialog.selected = k
+                    end
+                end
+                
+                if ui.filedialog.selected == k then
+                    draw.rectf(4,y-1,272,7,10)
+                end
+
+                if file.dir then
+                    draw.surf(0,0,5,4,7,y+1,5,4)
+                    pal.subpal(0,3)
+                    draw.surf(0,0,5,4,6,y,5,4)
+                    pal.subpal(0)
+                    draw.text(filename, 13, y, 0)
+                else
+                    draw.text(filename, 6, y, 0)
+                end
+                y=y+7
+                ::continue::
+                count=count+1
+                if count-ui.filedialog.offset>=23 then break end
+            end
+
+            if key.press(key.RETURN) and ui.filedialog.selected~=-1 then
+                ui.filedialog.select()
+            elseif key.press(key.DOWN) and ui.filedialog.selected<#ui.filedialog.files then
+                ui.filedialog.selected=ui.filedialog.selected+1
+            elseif key.press(key.UP) then
+                if ui.filedialog.selected>1 then
+                    ui.filedialog.selected=ui.filedialog.selected-1
+                else
+                    ui.filedialog.selected = 1
+                end
+            end
+
+            local scroll = -mouse.wheel()
+            if scroll~=0 then
+                ui.filedialog.offset=ui.filedialog.offset+scroll
+                if ui.filedialog.offset<0 then ui.filedialog.offset=0 end
+                if ui.filedialog.offset+23 > #ui.filedialog.files then ui.filedialog.offset = #ui.filedialog.files-23 end
+                ui.filedialog.lift_top=ui.filedialog.offset*161/#ui.filedialog.files
+            end
+        end
+    }
+}

version.h

@@ -1,3 +1,3 @@
 #pragma once
 
-#define MINI_VERSION "1.0 RC1"
+#define MINI_VERSION "1.4.1"

vscode/library.lua

@@ -3,183 +3,184 @@
 ---@class mini
 mini = {}
 
----@class surface
-surface = {}
+---@class surf
+surf = {}
 
 ---@param w number
 ---@param h number
 ---@return number surface
 ---Create new surface specifying width and height
-function surface.new(w, h) end
+function surf.new(w, h) end
 
 ---@param filename string
 ---@return number surface
 ---Load GIF file and return surface
-function surface.load(filename) end
+function surf.load(filename) end
+
+---@param filename string
+---@return number surface
+---Load GIF from external file and return surface
+function surf.loadex(filename) end
 
 ---@param surface number
 ---@param filename string
 ---@optional palette table
 ---Save surface as GIF file, with optional palette
-function surface.save(surface, filename, palette) end
+function surf.save(surface, filename, palette) end
 
 ---@param surface number
 ---Free the specified surface
-function surface.free(surface) end
+function surf.free(surface) end
 
 ---@param surface number
 ---@return number w, number h
 ---Retrieve width and height of surface
-function surface.getSize(surface) end
+function surf.size(surface) end
+
+---@return number surface
+---Get current target surface
+function surf.target() end
 
 ---@param surface number
 ---Set surface as target
-function surface.setTarget(surface) end
+function surf.target(surface) end
+
+---@return number surface
+---Get current source surface
+function surf.source() end
+
+---@param surface number
+---Set surface as source
+function surf.source(surface) end
+
+---Erase the current target surface with color 0.
+function surf.cls() end
 
 ---@param color number
 ---Erase the current target surface with 'color'
-function surface.cls(color) end
-
----@param surface number
----@param x number
----@param y number
----@param color number
----Set the color for pixel (x,y) in the specified surface.
-function surface.setPixel(surface, x, y, color) end
-
----@param surface number
----@param x number
----@param y number
----@return number color
----Get color of pixel (x,y) in the specified surface.
-function surface.getPixel(surface, x, y) end
-
----@param x number
----@param y number
----@param color number
----Set the color for pixel (x,y) in the current target surface.
-function surface.setPixel(x, y, color) end
+function surf.cls(color) end
 
 ---@param x number
 ---@param y number
 ---@return number color
----Get color of pixel (x,y) in the current target
-function surface.getPixel(x, y) end
+---Get color of pixel (x,y) on the source surface.
+function surf.pixel(x, y) end
 
----@class tilemap
-tilemap = {}
+---@param x number
+---@param y number
+---@param color number
+---Set the color for pixel (x,y) on the target surface.
+function surf.pixel(x, y, color) end
+
+---@class map
+map = {}
 
----@param filename string
 ---@return number surface
----Load a tilemap from a file and set it as current tilemap
-function tilemap.load(filename) end
-
----@param filename string
----Save the current tilemap in a file
-function tilemap.save(filename) end
+---Get tilemaps current surface
+function map.surf() end
 
 ---@param surface number
 ---Set surface as the current tilemap
-function tilemap.set(surface) end
+function map.surf(surface) end
 
----Draw the tilemap
-function tilemap.draw() end
+---Draw the tilemap, using the source surface as tile graphics source
+function map.draw() end
 
 ---@param x number
 ---@param y number
----@return number color
+---@return number tile
 ---Get tile at the position (x,y) in the current tilemap
-function tilemap.getTile(x, y) end
+function map.tile(x, y) end
 
 ---@param x number
 ---@param y number
 ---@param tile number
 ---Set the tile at the position (x,y) in the current tilemap
-function tilemap.setTile(x, y, tile) end
+function map.tile(x, y, tile) end
 
----@class palette
-palette = {}
+---@class pal
+pal = {}
 
 ---@param filename string
 ---@return table pal
 ---Load a palette from a GIF file and return it
-function palette.load(filename) end
+function pal.load(filename) end
 
 ---@param pal table
 ---Set a specified palette as the current palette
-function palette.set(pal) end
+function pal.set(pal) end
 
 ---@param index number
 ---@return number r, number g, number b
 ---Retrieve (r,g,b) color for the index specified in the current palette
-function palette.getColor(index) end
+function pal.color(index) end
 
 ---@param index number
 ---@param r number
 ---@param g number
 ---@param b number
 ---Set (r,g,b) color for the specified index in the current palette
-function palette.setColor(index, r, g, b) end
+function pal.color(index, r, g, b) end
 
 ---@param index number
 ---Set the index specified as transparent color
-function palette.setTransparent(index) end
-
----@class subpalette
-subpalette = {}
+function pal.trans(index) end
 
 ---Reset all the subpalette indices to their default palette index
-function subpalette.resetAll() end
+function pal.subpal() end
+
+---@param index number
+---Reset the specified subpalette index to its default palette index
+function pal.subpal(index) end
 
 ---@param index number
 ---@param color number
 ---Set the specified subpalette index to the specified palette index
-function subpalette.set(index, color) end
-
----@param index number
----Reset the specified subpalette index to its default palette index
-function subpalette.reset(index) end
+function pal.subpal(index, color) end
 
 ---@param index1 number
 ---@param index2 number
 ---@param color number
 ---Set the specified subpalette range to the specified palette index
-function subpalette.setRange(index1, index2, color) end
+function pal.subpal(index1, index2, color) end
 
----@param index1 number
----@param index2 number
----Reset the specified subpalette range to its default palette index
-function subpalette.resetRange(index1, index2) end
+---@class view
+view = {}
 
----@class viewport
-viewport = {}
+---reset the current clipping region to the entire window
+function view.clip() end
 
 ---@param x number
 ---@param y number
 ---@param w number
 ---@param h number
 ---Set the current clipping region
-function viewport.setClipping(x, y, w, h) end
+function view.clip(x, y, w, h) end
 
----reset the current clipping region to the entire window
-function viewport.resetClipping() end
+---@return number x, number y
+---Get the current origin position
+function view.origin() end
 
 ---@param x number
 ---@param y number
 ---Set the current origin position
-function viewport.setOrigin(x, y) end
-
----@return number x, number y
----Get the current origin position
-function viewport.getOrigin() end
+function view.origin(x, y) end
 
 ---@param x number
 ---@param y number
 ---@return number x, number y
 ---Convert screen position to viewport position
-function viewport.toLocal(x, y) end
+function view.tolocal(x, y) end
+
 
 ---@class draw
+---@field draw.NORMAL number
+---@field draw.PATTERN number
+---@field draw.AND number
+---@field draw.OR number
+---@field draw.XOR number
+---@field draw.NOT number
+
 draw = {}
 
 ---@param x1 number
@@ -204,21 +205,21 @@ function draw.hline(x1, y, x2, color) end
 ---Draw a vertical line from (x,y1) to (x,y2) with the givencolor
 function draw.vline(x, y1, y2, color) end
 
----@param x1 number
----@param y1 number
----@param x2 number
----@param y2 number
+---@param x number
+---@param y number
+---@param w number
+---@param h number
 ---@param color number
----Draw the ouline of a rectangle from (x1,y1) to (x2,y2) with the given color
-function draw.rect(x1, y1, x2, y2, color) end
+---Draw the ouline of a rectangle at (x,y) of size (w,h) with the given color
+function draw.rect(x, y, w, h, color) end
 
----@param x1 number
----@param y1 number
----@param x2 number
----@param y2 number
+---@param x number
+---@param y number
+---@param w number
+---@param h number
 ---@param color number
----Draw a filled rectangle from (x1,y1) to (x2,y2) with the given color
-function draw.rectFill(x1, y1, x2, y2, color) end
+---Draw a filled rectangle at (x,y) of size (w,h) with the given color
+function draw.rectf(x, y, w, h, color) end
 
 ---@param x number
 ---@param y number
@@ -232,7 +233,25 @@ function draw.circ(x, y, r, color) end
 ---@param r number
 ---@param color number
 ---Draw a filled cicle at position(x,y) with radius r and the given color
-function draw.circFill(x, y, r, color) end
+function draw.circf(x, y, r, color) end
+
+---@param x number
+---@param y number
+---@param w number
+---@param h number
+---@param r number
+---@param color number
+---Draw the outline of a round rectangle at (x,y) of size (w,h) with border radius r and the given color
+function draw.rrect(x, y, w, h, r, color) end
+
+---@param x number
+---@param y number
+---@param w number
+---@param h number
+---@param r number
+---@param color number
+---Draw a filled round rectangle at (x,y) of size (w,h) with border radius r and the given color
+function draw.rrectf(x, y, w, h, r, color) end
 
 ---@param x1 number
 ---@param y1 number
@@ -248,13 +267,15 @@ function draw.oval(x1, y1, x2, y2, color) end
 ---@param y2 number
 ---@param color number
 ---Draw a filled oval enclosed in (x1,y1)-(x2,y2) and the given color
-function draw.ovalFill(x1, y1, x2, y2, color) end
+function draw.ovalf(x1, y1, x2, y2, color) end
 
 ---@param pattern number
 ---Specify a pattern for the drawing functions
-function draw.setPattern(pattern) end
+function draw.pattern(pattern) end
+
+---Reset to no pattern for drawing functions
+function draw.pattern() end
 
----@param surface number
 ---@param sx number
 ---@param sy number
 ---@param sw number
@@ -266,12 +287,11 @@ function draw.setPattern(pattern) end
 ---@optional boolean flip_x
 ---@optional boolean flip_y
 ---@optional boolean invert
----Blit the region starting at (sx,sy) and size (sw, sh) from the specified surface
+---Blit the region starting at (sx,sy) and size (sw, sh) from the source surface
 ---to the position (dx, dy) (and optionally of size (dw, dh)) to the target surface,
 ---optionally flipping it horizontally or vertically, or inverting x and y axes
-function draw.surface(surface, sx, sy, sw, sh, dx, dy, dw, dh, flip_x, flip_y, invert) end
+function draw.surf(sx, sy, sw, sh, dx, dy, dw, dh, flip_x, flip_y, invert) end
 
----@param surface number
 ---@param sx number
 ---@param sy number
 ---@param sw number
@@ -279,9 +299,9 @@ function draw.surface(surface, sx, sy, sw, sh, dx, dy, dw, dh, flip_x, flip_y, i
 ---@param x number
 ---@param y number
 ---@param a number
----Blit the region starting at (sx,sy) and size (sw, sh) from the specified surface
+---Blit the region starting at (sx,sy) and size (sw, sh) from the source surface
 ---to the position (dx, dy) of the target surface, rotating it by a degrees
-function draw.surfaceRotated(surface, sx, sy, sw, sh, x, y, a) end
+function draw.surfrot(sx, sy, sw, sh, x, y, a) end
 
 ---@param text string
 ---@param x number
@@ -290,6 +310,46 @@ function draw.surfaceRotated(surface, sx, sy, sw, sh, x, y, a) end
 ---Draw text to (x,y) using the specified color
 function draw.text(text, x, y, color) end
 
+---@param text number
+---@param x number
+---@param y number
+---@param color number
+---Draw text to (x,y) using the specified color
+function draw.text(text, x, y, color) end
+
+---@param mode number
+---Specify the mode for the drawing functions
+function draw.mode(mode) end
+
+draw.NORMAL = 0
+draw.PATTERN = 1
+draw.AND = 2
+draw.OR = 3
+draw.XOR = 4
+draw.NOT = 5
+
+
+---@class shader
+shader = {}
+
+---Initialize shaders subsystem, still non functional without shaders
+function shader.init() end
+
+---@param shader string
+---Initialize shaders subsystem, specifying a file that contains both vertex and fragment shader
+function shader.init(shader) end
+
+---@param vshader string
+---@param fshader string
+---Initialize shaders subsystem, specifying both a vertex shader file and a fragment shader file
+function shader.init(vshader, fshader) end
+
+---Enable previously loaded shader
+function shader.enable() end
+
+---Disable shaders
+function shader.disable() end
+
 ---@class music
 music = {}
 
@@ -297,6 +357,11 @@ music = {}
 ---Load and play the song in the specified OGG file
 function music.play(filename) end
 
+---@param filename string
+---@param loop integer
+---Load and play the song in the specified OGG file, loop number of times
+function music.play(filename, loop) end
+
 ---Pause the currently playing song
 function music.pause() end
 
@@ -306,13 +371,22 @@ function music.resume() end
 ---Stop the currently playing song
 function music.stop() end
 
----@param pos number
----Set the playing position of the currently loaded song
-function music.setPosition(pos) end
-
 ---@return number pos
 ---Get the playing position of the currently loaded song
-function music.getPosition() end
+function music.pos() end
+
+---@param pos number
+---Set the playing position of the currently loaded song
+function music.pos(pos) end
+
+---@return boolean value
+---Get if music is enabled
+function music.enabled() end
+
+---@param value boolean
+---Set if music is enabled or not
+function music.enabled(value) end
+
 
 ---@class sound
 sound = {}
@@ -331,155 +405,272 @@ function sound.free(snd) end
 ---Play the sound specified, returns the channel in which it's playing
 function sound.play(snd) end
 
+---@param snd number
+---@param loop integer
+---@return number chl
+---Play the sound specified loop number of times, returns the channel in which it's playing
+function sound.play(snd, loop) end
+
 ---@param chl number
 ---Stop the channel specified
 function sound.stop(chl) end
 
----@class system
-system = {}
+---@return boolean value
+---Get if sound is enabled
+function sound.enabled() end
+
+---@param value boolean
+---Set if sound is enabled or not
+function sound.enabled(value) end
+
+---@class sys
+sys = {}
+
+---Get delta time from last update in seconds (with decimals)
+function sys.delta() end
 
 ---Get current system timer in seconds (with decimals)
-function system.getTime() end
+function sys.time() end
 
----@param bts number
----Set number of frames between beats
-function system.setBeat(bts) end
+---@param offset number
+---Reset chrono time (with offset in seconds) (with decimals)
+function sys.chrono(offset) end
+
+---@return number
+---@---Get chrono time since last chrono reset in seconds (with decimals)
+function sys.chrono() end
 
 ---@return boolean
 ---Query if a beat has already passed
-function system.isBeat() end
+function sys.beat() end
 
----The game will call mini.update as fast as possible
-function system.updateAtFullSpeed() end
-
----The game will call mini.update only when a keyboard, mouse or pad event fires
-function system.updateOnlyOnEvents() end
+---@param bts number
+---Set number of frames between beats
+function sys.beat(bts) end
 
+---@param mode number
 ---@param ms number
----The game will call mini.update on events or after the milliseconds specified passed
-function system.updateOnEventsAndTimeout(ms) end
+---Sets the update mode.
+---UPDATE_ALWAYS: The game will call mini.update as fast as possible
+---UPDATE_EVENTS: The game will call mini.update only when a keyboard, mouse or pad event fires
+---UPDATE_TIMEOUT: The game will call mini.update on events or after the milliseconds specified passed
+function sys.update(mode, ms) end
 
 ---@return table
----Gets a table with the name of each file in the data directory
-function system.getFilesInDataDirectory() end
+---Gets a table in which each entry has a field "name" with the name and a field "dir" with a
+---boolean specifying if it's a directory, for each file in the 'data' directory
+function sys.dir() end
+
+---@param path string
+---@return table
+---Gets a table in which each entry has a field "name" with the name and a field "dir" with a
+---boolean specifying if it's a directory, for each file in the specified path
+function sys.dir(path) end
 
 ---Exit the game
-function system.quit() end
+function sys.quit() end
 
----@class window
-window = {}
+---@return number
+---Gets the frames per second
+function sys.fps() end
+
+---@return string
+---Gets the content of the clipboard
+function sys.clipboard() end
+
+---@param value string
+---Sets the content of the clipboard
+function sys.clipboard(value) end
+
+---@return boolean
+---Returns true if running on debug version of mini. False otherwise.
+function sys.debug() end
+
+
+---@class win
+win = {}
 
 ---@param value number
 ---Set the window zoom
-function window.setZoom(value) end
+function win.zoom(value) end
 
 ---@return number value
 ---Get the window zoom
-function window.getZoom() end
+function win.zoom() end
 
 ---@param value boolean
 ---Specifies if the window must display at fullscreen or not
-function window.setFullscreen(value) end
+function win.fullscreen(value) end
 
 ---@return boolean value
 ---Returns if the window is at fullscreen or not
-function window.getFullscreen() end
+function win.fullscreen() end
 
 ---@param value boolean
 ---Specifies if the cursor must be visible or not
-function window.showCursor(value) end
+function win.cursor(value) end
 
 ---@return number w, number h
 ---Returns the current window size
-function window.getResolution() end
+function win.res() end
 
 ---@param w number
 ---@param h number
 ---Sets the window size
-function window.setResolution(w, h) end
+function win.res(w, h) end
 
 
 ---@class config
 config = {}
 
 ---@param key string
----@param value string
+---@param value any
 ---Sets the value of a key in the configuration file
-function config.setKey(key, value) end
+function config.key(key, value) end
 
 ---@param key string
 ---@return string value
 ---Gets the value of a key in the configuration file
-function config.getKey(key) end
+function config.key(key) end
 
 ---@return string value
 ---Returns the folder in which the configuration file resides
-function config.getConfigFolder() end
+function config.folder() end
 
 
 ---@class mouse
+---@field mouse.LEFT number
+---@field mouse.MIDDLE number
+---@field mouse.RIGHT number
+
 mouse = {}
 
 ---@return number x, number y
 ---Returns the current position of the mouse
-function mouse.getPos() end
+function mouse.pos() end
 
 ---@return number value
 ---Returns the value of the mouse wheel
-function mouse.getWheel() end
+function mouse.wheel() end
 
 ---@param btn number
 ---@return boolean
 ---Returns whether the specified mouse button is down
-function mouse.buttonDown(btn) end
+function mouse.down(btn) end
 
 ---@param btn number
 ---@return boolean
 ---Returns whether the specified mouse button has just been pressed
-function mouse.buttonPressed(btn) end
+function mouse.press(btn) end
 
----@class keyboard
-keyboard = {}
+---@return boolean
+---Returns whether the user performed a double click
+function mouse.dblclick() end
+
+---Ignores current down button, effectively not raising the next "press" event
+function mouse.discard() end
+
+---@param x number
+---@param y number
+---@param w number
+---@param h number
+---@return boolean
+---Returns whether the mouse is inside the rectangle specified
+function mouse.inside(x,y,w,h) end
+
+
+mouse.LEFT = 1
+mouse.MIDDLE = 2
+mouse.RIGHT = 3
+
+---@class key
+key = {}
 
 ---@param key number
 ---@return boolean
 ---Returns whether the specified keyboard key is down
-function keyboard.keyDown(key) end
+function key.down(key) end
 
 ---@return number
 ---Returns which keyboard key has just been pressed
-function keyboard.keyPressed() end
+function key.press() end
 
 ---@param key number
 ---@return boolean
 ---Returns whether the specified keyboard key has just been pressed
-function keyboard.keyPressed(key) end
+function key.press(key) end
 
 ---@return boolean
 ---Returns whether any keyboard key has just been pressed
-function keyboard.anyKeyPressed() end
+function key.any() end
 
 
----@class gamepad
-gamepad = {}
+---@class pad
+---@field pad.INVALID number
+---@field pad.A number
+---@field pad.B number
+---@field pad.X number
+---@field pad.Y number
+---@field pad.BACK number
+---@field pad.GUIDE number
+---@field pad.START number
+---@field pad.LEFTSTICK number
+---@field pad.RIGHTSTICK number
+---@field pad.LEFTSHOULDER number
+---@field pad.RIGHTSHOULDER number
+---@field pad.UP number
+---@field pad.DOWN number
+---@field pad.LEFT number
+---@field pad.RIGHT number
+---@field pad.MISC1 number
+---@field pad.PADDLE1 number
+---@field pad.PADDLE2 number
+---@field pad.PADDLE3 number
+---@field pad.PADDLE4 number
+---@field pad.TOUCHPAD number
+
+pad = {}
 
 ---@param btn number
 ---@return boolean
 ---Returns whether the specified gamepad button is down
-function gamepad.buttonDown(btn) end
+function pad.down(btn) end
 
 ---@return number
 ---Returns which gamepad button has just been pressed
-function gamepad.buttonPressed() end
+function pad.press() end
 
 ---@param btn number
 ---@return boolean
 ---Returns whether the specified gamepad button has just been pressed
-function gamepad.buttonPressed(btn) end
+function pad.press(btn) end
 
 ---@return boolean
 ---Returns whether any gamepad button has just been pressed
-function gamepad.anybuttonPressed() end
+function pad.any() end
+
+pad.INVALID = -1
+pad.A = 0
+pad.B = 1
+pad.X = 2
+pad.Y = 3
+pad.BACK = 4
+pad.GUIDE = 5
+pad.START = 6
+pad.LEFTSTICK = 7
+pad.RIGHTSTICK = 8
+pad.LEFTSHOULDER = 9
+pad.RIGHTSHOULDER = 10
+pad.UP = 11
+pad.DOWN = 12
+pad.LEFT = 13
+pad.RIGHT = 14
+pad.MISC1 = 15
+pad.PADDLE1 = 16
+pad.PADDLE2 = 17
+pad.PADDLE3 = 18
+pad.PADDLE4 = 19
+pad.TOUCHPAD = 20
 
 ---@class key
 ---@field key.UNKNOWN number
@@ -509,16 +700,16 @@ function gamepad.anybuttonPressed() end
 ---@field key.X number
 ---@field key.Y number
 ---@field key.Z number
----@field key.1 number
----@field key.2 number
----@field key.3 number
----@field key.4 number
----@field key.5 number
----@field key.6 number
----@field key.7 number
----@field key.8 number
----@field key.9 number
----@field key.0 number
+---@field key.N1 number
+---@field key.N2 number
+---@field key.N3 number
+---@field key.N4 number
+---@field key.N5 number
+---@field key.N6 number
+---@field key.N7 number
+---@field key.N8 number
+---@field key.N9 number
+---@field key.N0 number
 ---@field key.RETURN number
 ---@field key.ESCAPE number
 ---@field key.BACKSPACE number
@@ -589,7 +780,7 @@ function gamepad.anybuttonPressed() end
 ---@field key.RSHIFT number
 ---@field key.RALT number
 ---@field key.RGUI number
-key = {}
+
 key.UNKNOWN = 0
 key.A = 4
 key.B = 5
@@ -697,52 +888,3 @@ key.RCTRL = 228
 key.RSHIFT = 229
 key.RALT = 230
 key.RGUI = 231
-
-
----@class button
----@field button.INVALID number
----@field button.A number
----@field button.B number
----@field button.X number
----@field button.Y number
----@field button.BACK number
----@field button.GUIDE number
----@field button.START number
----@field button.LEFTSTICK number
----@field button.RIGHTSTICK number
----@field button.LEFTSHOULDER number
----@field button.RIGHTSHOULDER number
----@field button.UP number
----@field button.DOWN number
----@field button.LEFT number
----@field button.RIGHT number
----@field button.MISC1 number
----@field button.PADDLE1 number
----@field button.PADDLE2 number
----@field button.PADDLE3 number
----@field button.PADDLE4 number
----@field button.TOUCHPAD number
-
-button = {}
-button.INVALID = -1
-button.A = 0
-button.B = 1
-button.X = 2
-button.Y = 3
-button.BACK = 4
-button.GUIDE = 5
-button.START = 6
-button.LEFTSTICK = 7
-button.RIGHTSTICK = 8
-button.LEFTSHOULDER = 9
-button.RIGHTSHOULDER = 10
-button.UP = 11
-button.DOWN = 12
-button.LEFT = 13
-button.RIGHT = 14
-button.MISC1 = 15
-button.PADDLE1 = 16
-button.PADDLE2 = 17
-button.PADDLE3 = 18
-button.PADDLE4 = 19
-button.TOUCHPAD = 20