JailDesigner
d6ffbda00d
- Shaders MSL portados desde GLSL (vertex + fragment) - Estructura básica de MetalShader class - Device, command queue, pipeline y buffers creados - CMakeLists.txt actualizado con Metal frameworks - assets.txt incluye shaders .metal como opcionales PENDIENTE: - Implementar render() loop completo - Obtener MTLTexture desde SDL_Texture - Crear sampler state - Testing en macOS real Ver METAL_BACKEND_NOTES.md para detalles de implementación.
77 lines
2.2 KiB
Objective-C
77 lines
2.2 KiB
Objective-C
#pragma once
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#include "../shader_backend.h"
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#ifdef __APPLE__
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#import <Metal/Metal.h>
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#import <QuartzCore/CAMetalLayer.h>
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namespace Rendering {
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/**
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* @brief Backend de shaders usando Metal para macOS
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*
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* Implementa el renderizado de shaders usando Metal API nativo de Apple:
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* - MTLDevice para acceso a GPU
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* - MTLRenderPipelineState para configuración del pipeline
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* - MTLCommandQueue para enviar comandos a GPU
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* - MSL (Metal Shading Language) para shaders
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*/
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class MetalShader : public ShaderBackend {
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public:
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MetalShader() = default;
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~MetalShader() override;
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bool 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) override;
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void render() override;
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void setTextureSize(float width, float height) override;
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void cleanup() override;
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bool isHardwareAccelerated() const override { return is_initialized_; }
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private:
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// Funciones auxiliares
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bool createMetalDevice();
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bool compileShaders(const std::string& vertex_source,
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const std::string& fragment_source);
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bool createPipeline();
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bool createBuffers();
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id<MTLTexture> getMetalTexture(SDL_Texture* texture);
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// Estado SDL
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SDL_Window* window_ = nullptr;
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SDL_Renderer* renderer_ = nullptr;
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SDL_Texture* back_buffer_ = nullptr;
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// Estado Metal
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id<MTLDevice> device_ = nil; // GPU device
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id<MTLCommandQueue> command_queue_ = nil; // Cola de comandos
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id<MTLRenderPipelineState> pipeline_state_ = nil; // Estado del pipeline
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id<MTLBuffer> vertex_buffer_ = nil; // Buffer de vértices
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id<MTLBuffer> index_buffer_ = nil; // Buffer de índices
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id<MTLBuffer> uniforms_buffer_ = nil; // Buffer de uniforms
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CAMetalLayer* metal_layer_ = nil; // Layer de Metal
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// Uniforms
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struct Uniforms {
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float textureSize[2]; // width, height
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} uniforms_;
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// Tamaños
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int window_width_ = 0;
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int window_height_ = 0;
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float texture_width_ = 0.0f;
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float texture_height_ = 0.0f;
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// Estado
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bool is_initialized_ = false;
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};
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} // namespace Rendering
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#endif // __APPLE__
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