forked from jaildesigner-jailgames/jaildoctors_dilemma
clang-format
This commit is contained in:
@@ -162,395 +162,395 @@ fragment float4 postfx_fs(PostVOut in [[stage_in]],
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namespace Rendering {
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// ---------------------------------------------------------------------------
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// Destructor
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// ---------------------------------------------------------------------------
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SDL3GPUShader::~SDL3GPUShader() {
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destroy();
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}
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// ---------------------------------------------------------------------------
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// init
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// ---------------------------------------------------------------------------
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auto SDL3GPUShader::init(SDL_Window* window,
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SDL_Texture* texture,
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const std::string& /*vertex_source*/,
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const std::string& /*fragment_source*/) -> bool {
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// Si ya estaba inicializado (p.ej. al cambiar borde), liberar recursos
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// de textura/pipeline pero mantener el device vivo para evitar conflictos
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// con SDL_Renderer en Windows/Vulkan.
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if (is_initialized_) {
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cleanup();
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// ---------------------------------------------------------------------------
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// Destructor
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// ---------------------------------------------------------------------------
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SDL3GPUShader::~SDL3GPUShader() {
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destroy();
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}
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window_ = window;
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// ---------------------------------------------------------------------------
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// init
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// ---------------------------------------------------------------------------
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auto SDL3GPUShader::init(SDL_Window* window,
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SDL_Texture* texture,
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const std::string& /*vertex_source*/,
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const std::string& /*fragment_source*/) -> bool {
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// Si ya estaba inicializado (p.ej. al cambiar borde), liberar recursos
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// de textura/pipeline pero mantener el device vivo para evitar conflictos
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// con SDL_Renderer en Windows/Vulkan.
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if (is_initialized_) {
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cleanup();
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}
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// Dimensions from the SDL_Texture placeholder
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float fw = 0.0F;
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float fh = 0.0F;
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SDL_GetTextureSize(texture, &fw, &fh);
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tex_width_ = static_cast<int>(fw);
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tex_height_ = static_cast<int>(fh);
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uniforms_.screen_height = fh; // Altura lógica del juego (no el swapchain físico)
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window_ = window;
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// ----------------------------------------------------------------
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// 1. Create GPU device (solo si no existe ya)
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// ----------------------------------------------------------------
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if (device_ == nullptr) {
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#ifdef __APPLE__
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const SDL_GPUShaderFormat PREFERRED = SDL_GPU_SHADERFORMAT_MSL | SDL_GPU_SHADERFORMAT_METALLIB;
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#else
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const SDL_GPUShaderFormat PREFERRED = SDL_GPU_SHADERFORMAT_SPIRV;
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#endif
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device_ = SDL_CreateGPUDevice(PREFERRED, false, nullptr);
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// Dimensions from the SDL_Texture placeholder
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float fw = 0.0F;
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float fh = 0.0F;
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SDL_GetTextureSize(texture, &fw, &fh);
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tex_width_ = static_cast<int>(fw);
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tex_height_ = static_cast<int>(fh);
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uniforms_.screen_height = fh; // Altura lógica del juego (no el swapchain físico)
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// ----------------------------------------------------------------
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// 1. Create GPU device (solo si no existe ya)
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// ----------------------------------------------------------------
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if (device_ == nullptr) {
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SDL_Log("SDL3GPUShader: SDL_CreateGPUDevice failed: %s", SDL_GetError());
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#ifdef __APPLE__
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const SDL_GPUShaderFormat PREFERRED = SDL_GPU_SHADERFORMAT_MSL | SDL_GPU_SHADERFORMAT_METALLIB;
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#else
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const SDL_GPUShaderFormat PREFERRED = SDL_GPU_SHADERFORMAT_SPIRV;
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#endif
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device_ = SDL_CreateGPUDevice(PREFERRED, false, nullptr);
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if (device_ == nullptr) {
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SDL_Log("SDL3GPUShader: SDL_CreateGPUDevice failed: %s", SDL_GetError());
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return false;
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}
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SDL_Log("SDL3GPUShader: driver = %s", SDL_GetGPUDeviceDriver(device_));
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// ----------------------------------------------------------------
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// 2. Claim window (una sola vez — no liberar hasta destroy())
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// ----------------------------------------------------------------
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if (!SDL_ClaimWindowForGPUDevice(device_, window_)) {
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SDL_Log("SDL3GPUShader: SDL_ClaimWindowForGPUDevice failed: %s", SDL_GetError());
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SDL_DestroyGPUDevice(device_);
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device_ = nullptr;
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return false;
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}
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SDL_SetGPUSwapchainParameters(device_, window_, SDL_GPU_SWAPCHAINCOMPOSITION_SDR, vsync_ ? SDL_GPU_PRESENTMODE_VSYNC : SDL_GPU_PRESENTMODE_IMMEDIATE);
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}
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// ----------------------------------------------------------------
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// 3. Create scene texture (upload target + sampler source)
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// Format: B8G8R8A8_UNORM matches SDL ARGB8888 byte layout on LE
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// ----------------------------------------------------------------
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SDL_GPUTextureCreateInfo tex_info = {};
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tex_info.type = SDL_GPU_TEXTURETYPE_2D;
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tex_info.format = SDL_GPU_TEXTUREFORMAT_B8G8R8A8_UNORM;
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tex_info.usage = SDL_GPU_TEXTUREUSAGE_SAMPLER;
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tex_info.width = static_cast<Uint32>(tex_width_);
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tex_info.height = static_cast<Uint32>(tex_height_);
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tex_info.layer_count_or_depth = 1;
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tex_info.num_levels = 1;
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scene_texture_ = SDL_CreateGPUTexture(device_, &tex_info);
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if (scene_texture_ == nullptr) {
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SDL_Log("SDL3GPUShader: failed to create scene texture: %s", SDL_GetError());
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cleanup();
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return false;
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}
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SDL_Log("SDL3GPUShader: driver = %s", SDL_GetGPUDeviceDriver(device_));
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// ----------------------------------------------------------------
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// 2. Claim window (una sola vez — no liberar hasta destroy())
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// 4. Create upload transfer buffer (CPU → GPU, size = w*h*4 bytes)
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// ----------------------------------------------------------------
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if (!SDL_ClaimWindowForGPUDevice(device_, window_)) {
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SDL_Log("SDL3GPUShader: SDL_ClaimWindowForGPUDevice failed: %s", SDL_GetError());
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SDL_GPUTransferBufferCreateInfo tb_info = {};
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tb_info.usage = SDL_GPU_TRANSFERBUFFERUSAGE_UPLOAD;
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tb_info.size = static_cast<Uint32>(tex_width_ * tex_height_ * 4);
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upload_buffer_ = SDL_CreateGPUTransferBuffer(device_, &tb_info);
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if (upload_buffer_ == nullptr) {
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SDL_Log("SDL3GPUShader: failed to create upload buffer: %s", SDL_GetError());
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cleanup();
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return false;
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}
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// ----------------------------------------------------------------
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// 5. Create nearest-neighbour sampler (retro pixel art)
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// ----------------------------------------------------------------
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SDL_GPUSamplerCreateInfo samp_info = {};
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samp_info.min_filter = SDL_GPU_FILTER_NEAREST;
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samp_info.mag_filter = SDL_GPU_FILTER_NEAREST;
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samp_info.mipmap_mode = SDL_GPU_SAMPLERMIPMAPMODE_NEAREST;
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samp_info.address_mode_u = SDL_GPU_SAMPLERADDRESSMODE_CLAMP_TO_EDGE;
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samp_info.address_mode_v = SDL_GPU_SAMPLERADDRESSMODE_CLAMP_TO_EDGE;
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samp_info.address_mode_w = SDL_GPU_SAMPLERADDRESSMODE_CLAMP_TO_EDGE;
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sampler_ = SDL_CreateGPUSampler(device_, &samp_info);
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if (sampler_ == nullptr) {
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SDL_Log("SDL3GPUShader: failed to create sampler: %s", SDL_GetError());
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cleanup();
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return false;
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}
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// ----------------------------------------------------------------
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// 6. Create PostFX graphics pipeline
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// ----------------------------------------------------------------
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if (!createPipeline()) {
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cleanup();
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return false;
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}
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is_initialized_ = true;
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SDL_Log("SDL3GPUShader: initialized OK (%dx%d)", tex_width_, tex_height_);
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return true;
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}
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// ---------------------------------------------------------------------------
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// createPipeline
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// ---------------------------------------------------------------------------
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auto SDL3GPUShader::createPipeline() -> bool {
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const SDL_GPUTextureFormat SWAPCHAIN_FMT = SDL_GetGPUSwapchainTextureFormat(device_, window_);
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#ifdef __APPLE__
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SDL_GPUShader* vert = createShaderMSL(device_, POSTFX_VERT_MSL, "postfx_vs", SDL_GPU_SHADERSTAGE_VERTEX, 0, 0);
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SDL_GPUShader* frag = createShaderMSL(device_, POSTFX_FRAG_MSL, "postfx_fs", SDL_GPU_SHADERSTAGE_FRAGMENT, 1, 1);
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#else
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SDL_GPUShader* vert = createShaderSPIRV(device_, kpostfx_vert_spv, kpostfx_vert_spv_size, "main", SDL_GPU_SHADERSTAGE_VERTEX, 0, 0);
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SDL_GPUShader* frag = createShaderSPIRV(device_, kpostfx_frag_spv, kpostfx_frag_spv_size, "main", SDL_GPU_SHADERSTAGE_FRAGMENT, 1, 1);
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#endif
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if ((vert == nullptr) || (frag == nullptr)) {
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SDL_Log("SDL3GPUShader: failed to compile PostFX shaders");
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if (vert != nullptr) { SDL_ReleaseGPUShader(device_, vert); }
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if (frag != nullptr) { SDL_ReleaseGPUShader(device_, frag); }
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return false;
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}
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SDL_GPUColorTargetBlendState no_blend = {};
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no_blend.enable_blend = false;
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no_blend.enable_color_write_mask = false;
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SDL_GPUColorTargetDescription color_target = {};
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color_target.format = SWAPCHAIN_FMT;
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color_target.blend_state = no_blend;
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SDL_GPUVertexInputState no_input = {};
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SDL_GPUGraphicsPipelineCreateInfo pipe_info = {};
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pipe_info.vertex_shader = vert;
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pipe_info.fragment_shader = frag;
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pipe_info.vertex_input_state = no_input;
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pipe_info.primitive_type = SDL_GPU_PRIMITIVETYPE_TRIANGLELIST;
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pipe_info.target_info.num_color_targets = 1;
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pipe_info.target_info.color_target_descriptions = &color_target;
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pipeline_ = SDL_CreateGPUGraphicsPipeline(device_, &pipe_info);
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SDL_ReleaseGPUShader(device_, vert);
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SDL_ReleaseGPUShader(device_, frag);
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if (pipeline_ == nullptr) {
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SDL_Log("SDL3GPUShader: pipeline creation failed: %s", SDL_GetError());
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return false;
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}
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return true;
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}
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// ---------------------------------------------------------------------------
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// uploadPixels — copies ARGB8888 CPU pixels into the GPU transfer buffer
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// ---------------------------------------------------------------------------
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void SDL3GPUShader::uploadPixels(const Uint32* pixels, int width, int height) {
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if (!is_initialized_ || (upload_buffer_ == nullptr)) { return; }
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void* mapped = SDL_MapGPUTransferBuffer(device_, upload_buffer_, false);
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if (mapped == nullptr) {
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SDL_Log("SDL3GPUShader: SDL_MapGPUTransferBuffer failed: %s", SDL_GetError());
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return;
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}
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std::memcpy(mapped, pixels, static_cast<size_t>(width * height * 4));
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SDL_UnmapGPUTransferBuffer(device_, upload_buffer_);
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}
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// ---------------------------------------------------------------------------
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// render — upload scene texture + PostFX pass → swapchain
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// ---------------------------------------------------------------------------
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void SDL3GPUShader::render() {
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if (!is_initialized_) { return; }
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SDL_GPUCommandBuffer* cmd = SDL_AcquireGPUCommandBuffer(device_);
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if (cmd == nullptr) {
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SDL_Log("SDL3GPUShader: SDL_AcquireGPUCommandBuffer failed: %s", SDL_GetError());
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return;
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}
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// ---- Copy pass: transfer buffer → scene texture ----
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SDL_GPUCopyPass* copy = SDL_BeginGPUCopyPass(cmd);
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if (copy != nullptr) {
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SDL_GPUTextureTransferInfo src = {};
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src.transfer_buffer = upload_buffer_;
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src.offset = 0;
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src.pixels_per_row = static_cast<Uint32>(tex_width_);
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src.rows_per_layer = static_cast<Uint32>(tex_height_);
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SDL_GPUTextureRegion dst = {};
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dst.texture = scene_texture_;
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dst.w = static_cast<Uint32>(tex_width_);
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dst.h = static_cast<Uint32>(tex_height_);
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dst.d = 1;
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SDL_UploadToGPUTexture(copy, &src, &dst, false);
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SDL_EndGPUCopyPass(copy);
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}
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// ---- Acquire swapchain texture ----
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SDL_GPUTexture* swapchain = nullptr;
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Uint32 sw = 0;
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Uint32 sh = 0;
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if (!SDL_AcquireGPUSwapchainTexture(cmd, window_, &swapchain, &sw, &sh)) {
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SDL_Log("SDL3GPUShader: SDL_AcquireGPUSwapchainTexture failed: %s", SDL_GetError());
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SDL_SubmitGPUCommandBuffer(cmd);
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return;
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}
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if (swapchain == nullptr) {
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// Window minimized — skip frame
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SDL_SubmitGPUCommandBuffer(cmd);
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return;
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}
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// ---- Render pass: PostFX → swapchain ----
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SDL_GPUColorTargetInfo color_target = {};
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color_target.texture = swapchain;
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color_target.load_op = SDL_GPU_LOADOP_CLEAR;
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color_target.store_op = SDL_GPU_STOREOP_STORE;
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color_target.clear_color = {.r = 0.0F, .g = 0.0F, .b = 0.0F, .a = 1.0F};
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SDL_GPURenderPass* pass = SDL_BeginGPURenderPass(cmd, &color_target, 1, nullptr);
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if (pass != nullptr) {
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SDL_BindGPUGraphicsPipeline(pass, pipeline_);
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// Calcular viewport para mantener relación de aspecto (letterbox o integer scale)
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float vx = 0.0F;
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float vy = 0.0F;
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float vw = 0.0F;
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float vh = 0.0F;
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if (integer_scale_) {
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const int SCALE = std::max(1, std::min(static_cast<int>(sw) / tex_width_, static_cast<int>(sh) / tex_height_));
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vw = static_cast<float>(tex_width_ * SCALE);
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vh = static_cast<float>(tex_height_ * SCALE);
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} else {
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const float SCALE = std::min(
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static_cast<float>(sw) / static_cast<float>(tex_width_),
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static_cast<float>(sh) / static_cast<float>(tex_height_));
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vw = static_cast<float>(tex_width_) * SCALE;
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vh = static_cast<float>(tex_height_) * SCALE;
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}
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vx = std::floor((static_cast<float>(sw) - vw) * 0.5F);
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vy = std::floor((static_cast<float>(sh) - vh) * 0.5F);
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SDL_GPUViewport vp = {vx, vy, vw, vh, 0.0F, 1.0F};
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SDL_SetGPUViewport(pass, &vp);
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SDL_GPUTextureSamplerBinding binding = {};
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binding.texture = scene_texture_;
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binding.sampler = sampler_;
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SDL_BindGPUFragmentSamplers(pass, 0, &binding, 1);
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SDL_PushGPUFragmentUniformData(cmd, 0, &uniforms_, sizeof(PostFXUniforms));
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SDL_DrawGPUPrimitives(pass, 3, 1, 0, 0);
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SDL_EndGPURenderPass(pass);
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}
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SDL_SubmitGPUCommandBuffer(cmd);
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}
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// ---------------------------------------------------------------------------
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// cleanup — libera pipeline/texturas/buffer pero mantiene device + swapchain
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// ---------------------------------------------------------------------------
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void SDL3GPUShader::cleanup() {
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is_initialized_ = false;
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if (device_ != nullptr) {
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SDL_WaitForGPUIdle(device_);
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if (pipeline_ != nullptr) {
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SDL_ReleaseGPUGraphicsPipeline(device_, pipeline_);
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pipeline_ = nullptr;
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}
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if (scene_texture_ != nullptr) {
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SDL_ReleaseGPUTexture(device_, scene_texture_);
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scene_texture_ = nullptr;
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}
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if (upload_buffer_ != nullptr) {
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SDL_ReleaseGPUTransferBuffer(device_, upload_buffer_);
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upload_buffer_ = nullptr;
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}
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if (sampler_ != nullptr) {
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SDL_ReleaseGPUSampler(device_, sampler_);
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sampler_ = nullptr;
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}
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// device_ y el claim de la ventana se mantienen vivos
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}
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}
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// ---------------------------------------------------------------------------
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// destroy — limpieza completa incluyendo device y swapchain (solo al cerrar)
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// ---------------------------------------------------------------------------
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void SDL3GPUShader::destroy() {
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cleanup();
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if (device_ != nullptr) {
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if (window_ != nullptr) {
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SDL_ReleaseWindowFromGPUDevice(device_, window_);
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}
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SDL_DestroyGPUDevice(device_);
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device_ = nullptr;
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return false;
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}
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SDL_SetGPUSwapchainParameters(device_, window_, SDL_GPU_SWAPCHAINCOMPOSITION_SDR, vsync_ ? SDL_GPU_PRESENTMODE_VSYNC : SDL_GPU_PRESENTMODE_IMMEDIATE);
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window_ = nullptr;
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}
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// ----------------------------------------------------------------
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// 3. Create scene texture (upload target + sampler source)
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// Format: B8G8R8A8_UNORM matches SDL ARGB8888 byte layout on LE
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// ----------------------------------------------------------------
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SDL_GPUTextureCreateInfo tex_info = {};
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tex_info.type = SDL_GPU_TEXTURETYPE_2D;
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tex_info.format = SDL_GPU_TEXTUREFORMAT_B8G8R8A8_UNORM;
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tex_info.usage = SDL_GPU_TEXTUREUSAGE_SAMPLER;
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tex_info.width = static_cast<Uint32>(tex_width_);
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tex_info.height = static_cast<Uint32>(tex_height_);
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tex_info.layer_count_or_depth = 1;
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tex_info.num_levels = 1;
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scene_texture_ = SDL_CreateGPUTexture(device_, &tex_info);
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if (scene_texture_ == nullptr) {
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SDL_Log("SDL3GPUShader: failed to create scene texture: %s", SDL_GetError());
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cleanup();
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return false;
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}
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// ----------------------------------------------------------------
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// 4. Create upload transfer buffer (CPU → GPU, size = w*h*4 bytes)
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// ----------------------------------------------------------------
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SDL_GPUTransferBufferCreateInfo tb_info = {};
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tb_info.usage = SDL_GPU_TRANSFERBUFFERUSAGE_UPLOAD;
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tb_info.size = static_cast<Uint32>(tex_width_ * tex_height_ * 4);
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upload_buffer_ = SDL_CreateGPUTransferBuffer(device_, &tb_info);
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if (upload_buffer_ == nullptr) {
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SDL_Log("SDL3GPUShader: failed to create upload buffer: %s", SDL_GetError());
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cleanup();
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return false;
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}
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// ----------------------------------------------------------------
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// 5. Create nearest-neighbour sampler (retro pixel art)
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// ----------------------------------------------------------------
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||||
SDL_GPUSamplerCreateInfo samp_info = {};
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samp_info.min_filter = SDL_GPU_FILTER_NEAREST;
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samp_info.mag_filter = SDL_GPU_FILTER_NEAREST;
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samp_info.mipmap_mode = SDL_GPU_SAMPLERMIPMAPMODE_NEAREST;
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samp_info.address_mode_u = SDL_GPU_SAMPLERADDRESSMODE_CLAMP_TO_EDGE;
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samp_info.address_mode_v = SDL_GPU_SAMPLERADDRESSMODE_CLAMP_TO_EDGE;
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samp_info.address_mode_w = SDL_GPU_SAMPLERADDRESSMODE_CLAMP_TO_EDGE;
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sampler_ = SDL_CreateGPUSampler(device_, &samp_info);
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if (sampler_ == nullptr) {
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SDL_Log("SDL3GPUShader: failed to create sampler: %s", SDL_GetError());
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cleanup();
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return false;
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}
|
||||
|
||||
// ----------------------------------------------------------------
|
||||
// 6. Create PostFX graphics pipeline
|
||||
// ----------------------------------------------------------------
|
||||
if (!createPipeline()) {
|
||||
cleanup();
|
||||
return false;
|
||||
}
|
||||
|
||||
is_initialized_ = true;
|
||||
SDL_Log("SDL3GPUShader: initialized OK (%dx%d)", tex_width_, tex_height_);
|
||||
return true;
|
||||
}
|
||||
|
||||
// ---------------------------------------------------------------------------
|
||||
// createPipeline
|
||||
// ---------------------------------------------------------------------------
|
||||
auto SDL3GPUShader::createPipeline() -> bool {
|
||||
const SDL_GPUTextureFormat SWAPCHAIN_FMT = SDL_GetGPUSwapchainTextureFormat(device_, window_);
|
||||
|
||||
#ifdef __APPLE__
|
||||
SDL_GPUShader* vert = createShaderMSL(device_, POSTFX_VERT_MSL, "postfx_vs", SDL_GPU_SHADERSTAGE_VERTEX, 0, 0);
|
||||
SDL_GPUShader* frag = createShaderMSL(device_, POSTFX_FRAG_MSL, "postfx_fs", SDL_GPU_SHADERSTAGE_FRAGMENT, 1, 1);
|
||||
#else
|
||||
SDL_GPUShader* vert = createShaderSPIRV(device_, kpostfx_vert_spv, kpostfx_vert_spv_size, "main", SDL_GPU_SHADERSTAGE_VERTEX, 0, 0);
|
||||
SDL_GPUShader* frag = createShaderSPIRV(device_, kpostfx_frag_spv, kpostfx_frag_spv_size, "main", SDL_GPU_SHADERSTAGE_FRAGMENT, 1, 1);
|
||||
#endif
|
||||
|
||||
if ((vert == nullptr) || (frag == nullptr)) {
|
||||
SDL_Log("SDL3GPUShader: failed to compile PostFX shaders");
|
||||
if (vert != nullptr) { SDL_ReleaseGPUShader(device_, vert); }
|
||||
if (frag != nullptr) { SDL_ReleaseGPUShader(device_, frag); }
|
||||
return false;
|
||||
}
|
||||
|
||||
SDL_GPUColorTargetBlendState no_blend = {};
|
||||
no_blend.enable_blend = false;
|
||||
no_blend.enable_color_write_mask = false;
|
||||
|
||||
SDL_GPUColorTargetDescription color_target = {};
|
||||
color_target.format = SWAPCHAIN_FMT;
|
||||
color_target.blend_state = no_blend;
|
||||
|
||||
SDL_GPUVertexInputState no_input = {};
|
||||
|
||||
SDL_GPUGraphicsPipelineCreateInfo pipe_info = {};
|
||||
pipe_info.vertex_shader = vert;
|
||||
pipe_info.fragment_shader = frag;
|
||||
pipe_info.vertex_input_state = no_input;
|
||||
pipe_info.primitive_type = SDL_GPU_PRIMITIVETYPE_TRIANGLELIST;
|
||||
pipe_info.target_info.num_color_targets = 1;
|
||||
pipe_info.target_info.color_target_descriptions = &color_target;
|
||||
|
||||
pipeline_ = SDL_CreateGPUGraphicsPipeline(device_, &pipe_info);
|
||||
|
||||
SDL_ReleaseGPUShader(device_, vert);
|
||||
SDL_ReleaseGPUShader(device_, frag);
|
||||
|
||||
if (pipeline_ == nullptr) {
|
||||
SDL_Log("SDL3GPUShader: pipeline creation failed: %s", SDL_GetError());
|
||||
return false;
|
||||
}
|
||||
return true;
|
||||
}
|
||||
|
||||
// ---------------------------------------------------------------------------
|
||||
// uploadPixels — copies ARGB8888 CPU pixels into the GPU transfer buffer
|
||||
// ---------------------------------------------------------------------------
|
||||
void SDL3GPUShader::uploadPixels(const Uint32* pixels, int width, int height) {
|
||||
if (!is_initialized_ || (upload_buffer_ == nullptr)) { return; }
|
||||
|
||||
void* mapped = SDL_MapGPUTransferBuffer(device_, upload_buffer_, false);
|
||||
if (mapped == nullptr) {
|
||||
SDL_Log("SDL3GPUShader: SDL_MapGPUTransferBuffer failed: %s", SDL_GetError());
|
||||
return;
|
||||
}
|
||||
std::memcpy(mapped, pixels, static_cast<size_t>(width * height * 4));
|
||||
SDL_UnmapGPUTransferBuffer(device_, upload_buffer_);
|
||||
}
|
||||
|
||||
// ---------------------------------------------------------------------------
|
||||
// render — upload scene texture + PostFX pass → swapchain
|
||||
// ---------------------------------------------------------------------------
|
||||
void SDL3GPUShader::render() {
|
||||
if (!is_initialized_) { return; }
|
||||
|
||||
SDL_GPUCommandBuffer* cmd = SDL_AcquireGPUCommandBuffer(device_);
|
||||
if (cmd == nullptr) {
|
||||
SDL_Log("SDL3GPUShader: SDL_AcquireGPUCommandBuffer failed: %s", SDL_GetError());
|
||||
return;
|
||||
}
|
||||
|
||||
// ---- Copy pass: transfer buffer → scene texture ----
|
||||
SDL_GPUCopyPass* copy = SDL_BeginGPUCopyPass(cmd);
|
||||
if (copy != nullptr) {
|
||||
SDL_GPUTextureTransferInfo src = {};
|
||||
src.transfer_buffer = upload_buffer_;
|
||||
src.offset = 0;
|
||||
src.pixels_per_row = static_cast<Uint32>(tex_width_);
|
||||
src.rows_per_layer = static_cast<Uint32>(tex_height_);
|
||||
|
||||
SDL_GPUTextureRegion dst = {};
|
||||
dst.texture = scene_texture_;
|
||||
dst.w = static_cast<Uint32>(tex_width_);
|
||||
dst.h = static_cast<Uint32>(tex_height_);
|
||||
dst.d = 1;
|
||||
|
||||
SDL_UploadToGPUTexture(copy, &src, &dst, false);
|
||||
SDL_EndGPUCopyPass(copy);
|
||||
}
|
||||
|
||||
// ---- Acquire swapchain texture ----
|
||||
SDL_GPUTexture* swapchain = nullptr;
|
||||
Uint32 sw = 0;
|
||||
Uint32 sh = 0;
|
||||
if (!SDL_AcquireGPUSwapchainTexture(cmd, window_, &swapchain, &sw, &sh)) {
|
||||
SDL_Log("SDL3GPUShader: SDL_AcquireGPUSwapchainTexture failed: %s", SDL_GetError());
|
||||
SDL_SubmitGPUCommandBuffer(cmd);
|
||||
return;
|
||||
}
|
||||
if (swapchain == nullptr) {
|
||||
// Window minimized — skip frame
|
||||
SDL_SubmitGPUCommandBuffer(cmd);
|
||||
return;
|
||||
}
|
||||
|
||||
// ---- Render pass: PostFX → swapchain ----
|
||||
SDL_GPUColorTargetInfo color_target = {};
|
||||
color_target.texture = swapchain;
|
||||
color_target.load_op = SDL_GPU_LOADOP_CLEAR;
|
||||
color_target.store_op = SDL_GPU_STOREOP_STORE;
|
||||
color_target.clear_color = {.r = 0.0F, .g = 0.0F, .b = 0.0F, .a = 1.0F};
|
||||
|
||||
SDL_GPURenderPass* pass = SDL_BeginGPURenderPass(cmd, &color_target, 1, nullptr);
|
||||
if (pass != nullptr) {
|
||||
SDL_BindGPUGraphicsPipeline(pass, pipeline_);
|
||||
|
||||
// Calcular viewport para mantener relación de aspecto (letterbox o integer scale)
|
||||
float vx = 0.0F;
|
||||
float vy = 0.0F;
|
||||
float vw = 0.0F;
|
||||
float vh = 0.0F;
|
||||
if (integer_scale_) {
|
||||
const int SCALE = std::max(1, std::min(static_cast<int>(sw) / tex_width_, static_cast<int>(sh) / tex_height_));
|
||||
vw = static_cast<float>(tex_width_ * SCALE);
|
||||
vh = static_cast<float>(tex_height_ * SCALE);
|
||||
} else {
|
||||
const float SCALE = std::min(
|
||||
static_cast<float>(sw) / static_cast<float>(tex_width_),
|
||||
static_cast<float>(sh) / static_cast<float>(tex_height_));
|
||||
vw = static_cast<float>(tex_width_) * SCALE;
|
||||
vh = static_cast<float>(tex_height_) * SCALE;
|
||||
// ---------------------------------------------------------------------------
|
||||
// Shader creation helpers
|
||||
// ---------------------------------------------------------------------------
|
||||
auto SDL3GPUShader::createShaderMSL(SDL_GPUDevice* device,
|
||||
const char* msl_source,
|
||||
const char* entrypoint,
|
||||
SDL_GPUShaderStage stage,
|
||||
Uint32 num_samplers,
|
||||
Uint32 num_uniform_buffers) -> SDL_GPUShader* {
|
||||
SDL_GPUShaderCreateInfo info = {};
|
||||
info.code = reinterpret_cast<const Uint8*>(msl_source);
|
||||
info.code_size = std::strlen(msl_source) + 1;
|
||||
info.entrypoint = entrypoint;
|
||||
info.format = SDL_GPU_SHADERFORMAT_MSL;
|
||||
info.stage = stage;
|
||||
info.num_samplers = num_samplers;
|
||||
info.num_uniform_buffers = num_uniform_buffers;
|
||||
SDL_GPUShader* shader = SDL_CreateGPUShader(device, &info);
|
||||
if (shader == nullptr) {
|
||||
SDL_Log("SDL3GPUShader: MSL shader '%s' failed: %s", entrypoint, SDL_GetError());
|
||||
}
|
||||
vx = std::floor((static_cast<float>(sw) - vw) * 0.5F);
|
||||
vy = std::floor((static_cast<float>(sh) - vh) * 0.5F);
|
||||
SDL_GPUViewport vp = {vx, vy, vw, vh, 0.0F, 1.0F};
|
||||
SDL_SetGPUViewport(pass, &vp);
|
||||
|
||||
SDL_GPUTextureSamplerBinding binding = {};
|
||||
binding.texture = scene_texture_;
|
||||
binding.sampler = sampler_;
|
||||
SDL_BindGPUFragmentSamplers(pass, 0, &binding, 1);
|
||||
|
||||
SDL_PushGPUFragmentUniformData(cmd, 0, &uniforms_, sizeof(PostFXUniforms));
|
||||
|
||||
SDL_DrawGPUPrimitives(pass, 3, 1, 0, 0);
|
||||
SDL_EndGPURenderPass(pass);
|
||||
return shader;
|
||||
}
|
||||
|
||||
SDL_SubmitGPUCommandBuffer(cmd);
|
||||
}
|
||||
|
||||
// ---------------------------------------------------------------------------
|
||||
// cleanup — libera pipeline/texturas/buffer pero mantiene device + swapchain
|
||||
// ---------------------------------------------------------------------------
|
||||
void SDL3GPUShader::cleanup() {
|
||||
is_initialized_ = false;
|
||||
|
||||
if (device_ != nullptr) {
|
||||
SDL_WaitForGPUIdle(device_);
|
||||
|
||||
if (pipeline_ != nullptr) {
|
||||
SDL_ReleaseGPUGraphicsPipeline(device_, pipeline_);
|
||||
pipeline_ = nullptr;
|
||||
auto SDL3GPUShader::createShaderSPIRV(SDL_GPUDevice* device,
|
||||
const uint8_t* spv_code,
|
||||
size_t spv_size,
|
||||
const char* entrypoint,
|
||||
SDL_GPUShaderStage stage,
|
||||
Uint32 num_samplers,
|
||||
Uint32 num_uniform_buffers) -> SDL_GPUShader* {
|
||||
SDL_GPUShaderCreateInfo info = {};
|
||||
info.code = spv_code;
|
||||
info.code_size = spv_size;
|
||||
info.entrypoint = entrypoint;
|
||||
info.format = SDL_GPU_SHADERFORMAT_SPIRV;
|
||||
info.stage = stage;
|
||||
info.num_samplers = num_samplers;
|
||||
info.num_uniform_buffers = num_uniform_buffers;
|
||||
SDL_GPUShader* shader = SDL_CreateGPUShader(device, &info);
|
||||
if (shader == nullptr) {
|
||||
SDL_Log("SDL3GPUShader: SPIRV shader '%s' failed: %s", entrypoint, SDL_GetError());
|
||||
}
|
||||
if (scene_texture_ != nullptr) {
|
||||
SDL_ReleaseGPUTexture(device_, scene_texture_);
|
||||
scene_texture_ = nullptr;
|
||||
return shader;
|
||||
}
|
||||
|
||||
void SDL3GPUShader::setPostFXParams(const PostFXParams& p) {
|
||||
uniforms_.vignette_strength = p.vignette;
|
||||
uniforms_.scanline_strength = p.scanlines;
|
||||
uniforms_.chroma_strength = p.chroma;
|
||||
uniforms_.mask_strength = p.mask;
|
||||
uniforms_.gamma_strength = p.gamma;
|
||||
uniforms_.curvature = p.curvature;
|
||||
uniforms_.bleeding = p.bleeding;
|
||||
}
|
||||
|
||||
void SDL3GPUShader::setVSync(bool vsync) {
|
||||
vsync_ = vsync;
|
||||
if (device_ != nullptr && window_ != nullptr) {
|
||||
SDL_SetGPUSwapchainParameters(device_, window_, SDL_GPU_SWAPCHAINCOMPOSITION_SDR, vsync_ ? SDL_GPU_PRESENTMODE_VSYNC : SDL_GPU_PRESENTMODE_IMMEDIATE);
|
||||
}
|
||||
if (upload_buffer_ != nullptr) {
|
||||
SDL_ReleaseGPUTransferBuffer(device_, upload_buffer_);
|
||||
upload_buffer_ = nullptr;
|
||||
}
|
||||
if (sampler_ != nullptr) {
|
||||
SDL_ReleaseGPUSampler(device_, sampler_);
|
||||
sampler_ = nullptr;
|
||||
}
|
||||
// device_ y el claim de la ventana se mantienen vivos
|
||||
}
|
||||
}
|
||||
|
||||
// ---------------------------------------------------------------------------
|
||||
// destroy — limpieza completa incluyendo device y swapchain (solo al cerrar)
|
||||
// ---------------------------------------------------------------------------
|
||||
void SDL3GPUShader::destroy() {
|
||||
cleanup();
|
||||
|
||||
if (device_ != nullptr) {
|
||||
if (window_ != nullptr) {
|
||||
SDL_ReleaseWindowFromGPUDevice(device_, window_);
|
||||
}
|
||||
SDL_DestroyGPUDevice(device_);
|
||||
device_ = nullptr;
|
||||
void SDL3GPUShader::setScaleMode(bool integer_scale) {
|
||||
integer_scale_ = integer_scale;
|
||||
}
|
||||
window_ = nullptr;
|
||||
}
|
||||
|
||||
// ---------------------------------------------------------------------------
|
||||
// Shader creation helpers
|
||||
// ---------------------------------------------------------------------------
|
||||
auto SDL3GPUShader::createShaderMSL(SDL_GPUDevice* device,
|
||||
const char* msl_source,
|
||||
const char* entrypoint,
|
||||
SDL_GPUShaderStage stage,
|
||||
Uint32 num_samplers,
|
||||
Uint32 num_uniform_buffers) -> SDL_GPUShader* {
|
||||
SDL_GPUShaderCreateInfo info = {};
|
||||
info.code = reinterpret_cast<const Uint8*>(msl_source);
|
||||
info.code_size = std::strlen(msl_source) + 1;
|
||||
info.entrypoint = entrypoint;
|
||||
info.format = SDL_GPU_SHADERFORMAT_MSL;
|
||||
info.stage = stage;
|
||||
info.num_samplers = num_samplers;
|
||||
info.num_uniform_buffers = num_uniform_buffers;
|
||||
SDL_GPUShader* shader = SDL_CreateGPUShader(device, &info);
|
||||
if (shader == nullptr) {
|
||||
SDL_Log("SDL3GPUShader: MSL shader '%s' failed: %s", entrypoint, SDL_GetError());
|
||||
}
|
||||
return shader;
|
||||
}
|
||||
|
||||
auto SDL3GPUShader::createShaderSPIRV(SDL_GPUDevice* device,
|
||||
const uint8_t* spv_code,
|
||||
size_t spv_size,
|
||||
const char* entrypoint,
|
||||
SDL_GPUShaderStage stage,
|
||||
Uint32 num_samplers,
|
||||
Uint32 num_uniform_buffers) -> SDL_GPUShader* {
|
||||
SDL_GPUShaderCreateInfo info = {};
|
||||
info.code = spv_code;
|
||||
info.code_size = spv_size;
|
||||
info.entrypoint = entrypoint;
|
||||
info.format = SDL_GPU_SHADERFORMAT_SPIRV;
|
||||
info.stage = stage;
|
||||
info.num_samplers = num_samplers;
|
||||
info.num_uniform_buffers = num_uniform_buffers;
|
||||
SDL_GPUShader* shader = SDL_CreateGPUShader(device, &info);
|
||||
if (shader == nullptr) {
|
||||
SDL_Log("SDL3GPUShader: SPIRV shader '%s' failed: %s", entrypoint, SDL_GetError());
|
||||
}
|
||||
return shader;
|
||||
}
|
||||
|
||||
void SDL3GPUShader::setPostFXParams(const PostFXParams& p) {
|
||||
uniforms_.vignette_strength = p.vignette;
|
||||
uniforms_.scanline_strength = p.scanlines;
|
||||
uniforms_.chroma_strength = p.chroma;
|
||||
uniforms_.mask_strength = p.mask;
|
||||
uniforms_.gamma_strength = p.gamma;
|
||||
uniforms_.curvature = p.curvature;
|
||||
uniforms_.bleeding = p.bleeding;
|
||||
}
|
||||
|
||||
void SDL3GPUShader::setVSync(bool vsync) {
|
||||
vsync_ = vsync;
|
||||
if (device_ != nullptr && window_ != nullptr) {
|
||||
SDL_SetGPUSwapchainParameters(device_, window_, SDL_GPU_SWAPCHAINCOMPOSITION_SDR, vsync_ ? SDL_GPU_PRESENTMODE_VSYNC : SDL_GPU_PRESENTMODE_IMMEDIATE);
|
||||
}
|
||||
}
|
||||
|
||||
void SDL3GPUShader::setScaleMode(bool integer_scale) {
|
||||
integer_scale_ = integer_scale;
|
||||
}
|
||||
|
||||
} // namespace Rendering
|
||||
|
||||
@@ -9,27 +9,27 @@
|
||||
// Must match the MSL struct and GLSL uniform block layout.
|
||||
// 8 floats = 32 bytes — meets Metal/Vulkan 16-byte alignment requirement.
|
||||
struct PostFXUniforms {
|
||||
float vignette_strength; // 0 = none, ~0.8 = subtle
|
||||
float chroma_strength; // 0 = off, ~0.2 = subtle chromatic aberration
|
||||
float scanline_strength; // 0 = off, 1 = full
|
||||
float screen_height; // logical height in pixels (for resolution-independent scanlines)
|
||||
float mask_strength; // 0 = off, 1 = full phosphor dot mask
|
||||
float gamma_strength; // 0 = off, 1 = full gamma 2.4/2.2 correction
|
||||
float curvature; // 0 = flat, 1 = max barrel distortion
|
||||
float bleeding; // 0 = off, 1 = max NTSC chrominance bleeding
|
||||
float vignette_strength; // 0 = none, ~0.8 = subtle
|
||||
float chroma_strength; // 0 = off, ~0.2 = subtle chromatic aberration
|
||||
float scanline_strength; // 0 = off, 1 = full
|
||||
float screen_height; // logical height in pixels (for resolution-independent scanlines)
|
||||
float mask_strength; // 0 = off, 1 = full phosphor dot mask
|
||||
float gamma_strength; // 0 = off, 1 = full gamma 2.4/2.2 correction
|
||||
float curvature; // 0 = flat, 1 = max barrel distortion
|
||||
float bleeding; // 0 = off, 1 = max NTSC chrominance bleeding
|
||||
};
|
||||
|
||||
namespace Rendering {
|
||||
|
||||
/**
|
||||
* @brief Backend de shaders usando SDL3 GPU API (Metal en macOS, Vulkan/SPIR-V en Win/Linux)
|
||||
*
|
||||
* Reemplaza el backend OpenGL para que los shaders PostFX funcionen en macOS.
|
||||
* Pipeline: Surface pixels (CPU) → SDL_GPUTransferBuffer → SDL_GPUTexture (scene)
|
||||
* → PostFX render pass → swapchain → present
|
||||
*/
|
||||
class SDL3GPUShader : public ShaderBackend {
|
||||
public:
|
||||
/**
|
||||
* @brief Backend de shaders usando SDL3 GPU API (Metal en macOS, Vulkan/SPIR-V en Win/Linux)
|
||||
*
|
||||
* Reemplaza el backend OpenGL para que los shaders PostFX funcionen en macOS.
|
||||
* Pipeline: Surface pixels (CPU) → SDL_GPUTransferBuffer → SDL_GPUTexture (scene)
|
||||
* → PostFX render pass → swapchain → present
|
||||
*/
|
||||
class SDL3GPUShader : public ShaderBackend {
|
||||
public:
|
||||
SDL3GPUShader() = default;
|
||||
~SDL3GPUShader() override;
|
||||
|
||||
@@ -41,7 +41,7 @@ class SDL3GPUShader : public ShaderBackend {
|
||||
void render() override;
|
||||
void setTextureSize(float width, float height) override {}
|
||||
void cleanup() final; // Libera pipeline/texturas pero mantiene el device vivo
|
||||
void destroy(); // Limpieza completa (device + swapchain); llamar solo al cerrar
|
||||
void destroy(); // Limpieza completa (device + swapchain); llamar solo al cerrar
|
||||
[[nodiscard]] auto isHardwareAccelerated() const -> bool override { return is_initialized_; }
|
||||
|
||||
// Sube píxeles ARGB8888 desde CPU; llamado antes de render()
|
||||
@@ -56,7 +56,7 @@ class SDL3GPUShader : public ShaderBackend {
|
||||
// Activa/desactiva escalado entero (integer scale)
|
||||
void setScaleMode(bool integer_scale) override;
|
||||
|
||||
private:
|
||||
private:
|
||||
static auto createShaderMSL(SDL_GPUDevice* device,
|
||||
const char* msl_source,
|
||||
const char* entrypoint,
|
||||
@@ -88,6 +88,6 @@ class SDL3GPUShader : public ShaderBackend {
|
||||
bool is_initialized_ = false;
|
||||
bool vsync_ = true;
|
||||
bool integer_scale_ = false;
|
||||
};
|
||||
};
|
||||
|
||||
} // namespace Rendering
|
||||
|
||||
Reference in New Issue
Block a user