77 lines
2.2 KiB
C++
77 lines
2.2 KiB
C++
#include <assets/loaders/shader_loader.h>
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#include <renderer/shader.h>
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#include <utils/logger.h>
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namespace extra2d {
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ShaderLoader::ShaderLoader(AssetFileSystem fileSystem)
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: fileSystem_(std::move(fileSystem)) {}
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Ptr<Shader> ShaderLoader::load(const std::string &path) {
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std::string basePath = path;
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std::string::size_type dotPos = basePath.rfind('.');
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if (dotPos != std::string::npos) {
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basePath = basePath.substr(0, dotPos);
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}
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std::string vertPath = basePath + ".vert";
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std::string fragPath = basePath + ".frag";
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if (!fileSystem_.exists(vertPath)) {
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vertPath = basePath + ".vs";
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}
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if (!fileSystem_.exists(fragPath)) {
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fragPath = basePath + ".fs";
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}
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return load(vertPath, fragPath);
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}
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Ptr<Shader> ShaderLoader::load(const std::string &vertPath,
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const std::string &fragPath) {
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// 读取顶点着色器文件
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std::string vsSource = fileSystem_.readString(vertPath);
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if (vsSource.empty()) {
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E2D_ERROR("ShaderLoader: 读取顶点着色器失败: {}", vertPath);
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return Ptr<Shader>();
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}
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// 读取片段着色器文件
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std::string fsSource = fileSystem_.readString(fragPath);
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if (fsSource.empty()) {
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E2D_ERROR("ShaderLoader: 读取片段着色器失败: {}", fragPath);
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return Ptr<Shader>();
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}
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// 从源码加载着色器
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Ptr<Shader> shader = makePtr<Shader>();
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if (!shader->loadFromSource(vsSource, fsSource)) {
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E2D_ERROR("ShaderLoader: 编译着色器失败 {} + {}", vertPath, fragPath);
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return Ptr<Shader>();
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}
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E2D_DEBUG("ShaderLoader: 已加载着色器 {} + {}", vertPath, fragPath);
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return shader;
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}
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Ptr<Shader> ShaderLoader::loadFromMemory(const uint8_t *data, size_t size) {
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E2D_ERROR("ShaderLoader: loadFromMemory 不支持着色器");
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return Ptr<Shader>();
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}
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Ptr<Shader> ShaderLoader::loadFromSource(const std::string &vsSource,
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const std::string &fsSource) {
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Ptr<Shader> shader = makePtr<Shader>();
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if (!shader->loadFromSource(vsSource, fsSource)) {
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E2D_ERROR("ShaderLoader: 从源码编译着色器失败");
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return Ptr<Shader>();
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}
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E2D_DEBUG("ShaderLoader: 已从源码编译着色器");
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return shader;
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}
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} // namespace extra2d
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