arreglos en make i cmake per estandaritzar amb la resta de projectes

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-04-17 12:59:57 +02:00
parent e941502615
commit 671583ebbe
5 changed files with 209 additions and 324 deletions
--- a/tools/shaders/compile_spirv.cmake
+++ b/tools/shaders/compile_spirv.cmake
@@ -0,0 +1,101 @@
+# compile_spirv.cmake
+# Compila shaders GLSL a SPIR-V y genera headers C++ embebibles.
+# Multiplataforma: Windows, macOS, Linux (no requiere bash, xxd ni /tmp/).
+#
+# Invocado por CMakeLists.txt con:
+#   cmake -D GLSLC=<path> -D SHADERS_DIR=<path> -D HEADERS_DIR=<path> -P compile_spirv.cmake
+#
+# También puede ejecutarse manualmente desde la raíz del proyecto:
+#   cmake -D GLSLC=glslc -D SHADERS_DIR=data/shaders -D HEADERS_DIR=source/core/rendering/sdl3gpu -P tools/shaders/compile_spirv.cmake
+
+cmake_minimum_required(VERSION 3.10)
+cmake_policy(SET CMP0007 NEW)
+
+# Lista de shaders: fuente relativa a SHADERS_DIR
+set(SHADER_SOURCES
+    "postfx.vert"
+    "postfx.frag"
+    "upscale.frag"
+    "downscale.frag"
+    "crtpi_frag.glsl"
+)
+
+# Nombre de la variable C++ para cada shader (mismo orden)
+set(SHADER_VARS
+    "kpostfx_vert_spv"
+    "kpostfx_frag_spv"
+    "kupscale_frag_spv"
+    "kdownscale_frag_spv"
+    "kcrtpi_frag_spv"
+)
+
+# Flags extra de glslc para cada shader (vacío si no hay)
+set(SHADER_FLAGS
+    ""
+    ""
+    ""
+    ""
+    "-fshader-stage=frag"
+)
+
+list(LENGTH SHADER_SOURCES NUM_SHADERS)
+math(EXPR LAST_IDX "${NUM_SHADERS} - 1")
+
+foreach(IDX RANGE ${LAST_IDX})
+    list(GET SHADER_SOURCES ${IDX} SRC_NAME)
+    list(GET SHADER_VARS    ${IDX} VAR)
+    list(GET SHADER_FLAGS   ${IDX} EXTRA_FLAG)
+
+    # Derivar nombre del header desde la variable: kpostfx_vert_spv → postfx_vert_spv.h
+    string(REGEX REPLACE "^k" "" HDR_BASE "${VAR}")
+    set(SRC "${SHADERS_DIR}/${SRC_NAME}")
+    set(SPV "${HEADERS_DIR}/${HDR_BASE}.spv")
+    set(HDR "${HEADERS_DIR}/${HDR_BASE}.h")
+
+    message(STATUS "Compilando ${SRC} ...")
+
+    if(EXTRA_FLAG)
+        execute_process(
+            COMMAND "${GLSLC}" "${EXTRA_FLAG}" "${SRC}" -o "${SPV}"
+            RESULT_VARIABLE GLSLC_RESULT
+            ERROR_VARIABLE  GLSLC_ERROR
+        )
+    else()
+        execute_process(
+            COMMAND "${GLSLC}" "${SRC}" -o "${SPV}"
+            RESULT_VARIABLE GLSLC_RESULT
+            ERROR_VARIABLE  GLSLC_ERROR
+        )
+    endif()
+
+    if(NOT GLSLC_RESULT EQUAL 0)
+        message(FATAL_ERROR "glslc falló para ${SRC}:\n${GLSLC_ERROR}")
+    endif()
+
+    # Leer binario SPV como hex (sin separadores: "0302230700...")
+    file(READ "${SPV}" HEX_DATA HEX)
+    # Dividir en pares de caracteres hex → lista de bytes
+    string(REGEX MATCHALL ".." BYTES "${HEX_DATA}")
+    list(LENGTH BYTES NUM_BYTES)
+
+    # Construir el cuerpo del array C++ con un byte por línea
+    set(ARRAY_BODY "")
+    foreach(BYTE ${BYTES})
+        string(APPEND ARRAY_BODY "    0x${BYTE},\n")
+    endforeach()
+
+    file(WRITE "${HDR}"
+        "#pragma once\n"
+        "#include <cstddef>\n"
+        "#include <cstdint>\n"
+        "static const uint8_t ${VAR}[] = {\n"
+        "${ARRAY_BODY}"
+        "};\n"
+        "static const size_t ${VAR}_size = ${NUM_BYTES};\n"
+    )
+
+    file(REMOVE "${SPV}")
+    message(STATUS "  -> ${HDR} (${NUM_BYTES} bytes)")
+endforeach()
+
+message(STATUS "Shaders SPIR-V compilados correctamente.")