Sergio Valor
00a5875c92
- Infraestructura GPU: GpuContext, GpuPipeline, GpuSpriteBatch, GpuTexture - Engine::render() migrat a 2-pass: sprites → offscreen R8G8B8A8 → swapchain + vignette - UI/text via software renderer (SDL3_ttf) + upload com a textura overlay GPU - CMakeLists.txt actualitzat per incloure subsistema gpu/ Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
49 lines
1.8 KiB
C++
49 lines
1.8 KiB
C++
#pragma once
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#include <SDL3/SDL_gpu.h>
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#include <SDL3/SDL_surface.h>
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#include <string>
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// ============================================================================
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// GpuTexture — SDL_GPU texture + sampler wrapper
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// Handles sprite textures, render targets, and the 1×1 white utility texture.
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// ============================================================================
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class GpuTexture {
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public:
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GpuTexture() = default;
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~GpuTexture() = default;
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// Load from resource path (pack or disk) using stb_image.
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bool fromFile(SDL_GPUDevice* device, const std::string& file_path);
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// Upload pixel data from an SDL_Surface to a new GPU texture + sampler.
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// Uses nearest-neighbor filter for sprite pixel-perfect look.
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bool fromSurface(SDL_GPUDevice* device, SDL_Surface* surface, bool nearest = true);
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// Create an offscreen render target (COLOR_TARGET | SAMPLER usage).
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bool createRenderTarget(SDL_GPUDevice* device, int w, int h,
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SDL_GPUTextureFormat format);
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// Create a 1×1 opaque white texture (used for untextured geometry).
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bool createWhite(SDL_GPUDevice* device);
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// Release GPU resources.
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void destroy(SDL_GPUDevice* device);
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SDL_GPUTexture* texture() const { return texture_; }
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SDL_GPUSampler* sampler() const { return sampler_; }
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int width() const { return width_; }
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int height() const { return height_; }
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bool isValid() const { return texture_ != nullptr; }
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private:
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bool uploadPixels(SDL_GPUDevice* device, const void* pixels,
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int w, int h, SDL_GPUTextureFormat format);
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bool createSampler(SDL_GPUDevice* device, bool nearest);
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SDL_GPUTexture* texture_ = nullptr;
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SDL_GPUSampler* sampler_ = nullptr;
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int width_ = 0;
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int height_ = 0;
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};
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