85 lines
2.2 KiB
C++
85 lines
2.2 KiB
C++
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#include <cstring>
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#include <renderer/rhi/opengl/gl_context.h>
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#include <renderer/rhi/opengl/gl_framebuffer.h>
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#include <utils/logger.h>
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namespace extra2d {
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GLContext::GLContext(GLDevice *device)
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: device_(device), defaultFramebuffer_(nullptr) {}
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GLContext::~GLContext() = default;
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bool GLContext::initialize() {
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E2D_LOG_INFO("Initializing OpenGL context...");
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// 创建默认帧缓冲（窗口帧缓冲）
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defaultFramebuffer_ = std::make_unique<GLFramebuffer>();
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defaultFramebuffer_->setSize(800, 600); // 默认大小，会被更新
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E2D_LOG_INFO("OpenGL context initialized");
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return true;
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}
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void GLContext::shutdown() {
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E2D_LOG_INFO("Shutting down OpenGL context...");
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defaultFramebuffer_.reset();
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E2D_LOG_INFO("OpenGL context shutdown complete");
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}
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void GLContext::beginFrame() {
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// 重置每帧的统计
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// device_->resetStats(); // 需要在 GLDevice 中添加此方法
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}
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void GLContext::endFrame() {
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// 交换缓冲区
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// 通过 SDL 获取当前窗口并交换缓冲区
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SDL_Window* window = SDL_GL_GetCurrentWindow();
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if (window) {
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SDL_GL_SwapWindow(window);
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}
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}
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void GLContext::setViewport(int32_t x, int32_t y, uint32_t width,
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uint32_t height) {
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glViewport(x, y, static_cast<GLsizei>(width), static_cast<GLsizei>(height));
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// 更新默认帧缓冲大小
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if (defaultFramebuffer_) {
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defaultFramebuffer_->setSize(width, height);
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}
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}
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void GLContext::bindDefaultFramebuffer() {
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glBindFramebuffer(GL_FRAMEBUFFER, 0);
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}
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RHIFramebuffer *GLContext::getDefaultFramebuffer() {
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return defaultFramebuffer_.get();
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}
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bool GLContext::isFeatureSupported(const char *feature) const {
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// 检查 OpenGL 扩展或版本
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if (std::strcmp(feature, "instancing") == 0) {
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return glad_glDrawArraysInstanced != nullptr;
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}
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if (std::strcmp(feature, "compute") == 0) {
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return glad_glDispatchCompute != nullptr;
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}
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if (std::strcmp(feature, "sRGB") == 0) {
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return GLAD_GL_EXT_texture_sRGB_R8;
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}
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if (std::strcmp(feature, "anisotropic") == 0) {
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return GLAD_GL_EXT_texture_filter_anisotropic;
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}
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if (std::strcmp(feature, "debug") == 0) {
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return GLAD_GL_KHR_debug;
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}
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return false;
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}
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} // namespace extra2d
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