Reestructura carpetes: src->source, third_party->source/external, shaders->data/shaders

source/rendering/sdl3gpu/shader_factory.hpp

@@ -0,0 +1,41 @@
+#pragma once
+
+#include <SDL3/SDL.h>
+
+#include <filesystem>
+
+namespace Rendering::Sdl3Gpu {
+
+    // Loads a compiled shader binary or source from disk and creates an SDL_GPUShader.
+    // For SPIR-V: pass the .spv path with format = SDL_GPU_SHADERFORMAT_SPIRV.
+    // For MSL: pass the .msl text path with format = SDL_GPU_SHADERFORMAT_MSL.
+    inline auto loadShaderFromFile(SDL_GPUDevice* device,
+        const std::filesystem::path& path,
+        SDL_GPUShaderFormat format,
+        const char* entrypoint,
+        SDL_GPUShaderStage stage,
+        Uint32 num_samplers,
+        Uint32 num_uniform_buffers) -> SDL_GPUShader* {
+        std::size_t size = 0;
+        void* data = SDL_LoadFile(path.string().c_str(), &size);
+        if (data == nullptr) {
+            return nullptr;
+        }
+
+        SDL_GPUShaderCreateInfo info{};
+        info.code_size = size;
+        info.code = static_cast<Uint8*>(data);
+        info.entrypoint = entrypoint;
+        info.format = format;
+        info.stage = stage;
+        info.num_samplers = num_samplers;
+        info.num_storage_textures = 0;
+        info.num_storage_buffers = 0;
+        info.num_uniform_buffers = num_uniform_buffers;
+
+        SDL_GPUShader* shader = SDL_CreateGPUShader(device, &info);
+        SDL_free(data);
+        return shader;
+    }
+
+}  // namespace Rendering::Sdl3Gpu