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Renderer GL: Don't leak shader/UBO handles

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wheremyfoodat 2024-07-20 23:18:52 +03:00
parent 5c40fb0cbf
commit f219432c6a
2 changed files with 15 additions and 9 deletions
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1
include/renderer_gl/renderer_gl.hpp
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@ -117,6 +117,7 @@ class RendererGL final : public Renderer {
// Note: The caller is responsible for deleting the currently bound FBO before calling this
void setFBO(uint handle) { screenFramebuffer.m_handle = handle; }
void resetStateManager() { gl.reset(); }
void clearShaderCache();
void initUbershader(OpenGL::Program& program);
#ifdef PANDA3DS_FRONTEND_QT

23
src/core/renderer_gl/renderer_gl.cpp
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@ -24,10 +24,7 @@ void RendererGL::reset() {
colourBufferCache.reset();
textureCache.reset();
for (auto& shader : shaderCache) {
shader.second.program.free();
}
shaderCache.clear();
clearShaderCache();
// Init the colour/depth buffer settings to some random defaults on reset
colourBufferLoc = 0;
@ -808,6 +805,8 @@ OpenGL::Program& RendererGL::getSpecializedShader() {
program.create({defaultShadergenVs, fragShader});
gl.useProgram(program);
fragShader.free();
// Init sampler objects. Texture 0 goes in texture unit 0, texture 1 in TU 1, texture 2 in TU 2, and the light maps go in TU 3
glUniform1i(OpenGL::uniformLocation(program, "u_tex0"), 0);
glUniform1i(OpenGL::uniformLocation(program, "u_tex1"), 1);
@ -937,16 +936,22 @@ void RendererGL::screenshot(const std::string& name) {
stbi_write_png(name.c_str(), width, height, 4, flippedPixels.data(), 0);
}
void RendererGL::clearShaderCache() {
for (auto& shader : shaderCache) {
CachedProgram& cachedProgram = shader.second;
cachedProgram.program.free();
glDeleteBuffers(1, &cachedProgram.uboBinding);
}
shaderCache.clear();
}
void RendererGL::deinitGraphicsContext() {
// Invalidate all surface caches since they'll no longer be valid
textureCache.reset();
depthBufferCache.reset();
colourBufferCache.reset();
for (auto& shader : shaderCache) {
shader.second.program.free();
}
shaderCache.clear();
clearShaderCache();
// All other GL objects should be invalidated automatically and be recreated by the next call to initGraphicsContext
// TODO: Make it so that depth and colour buffers get written back to 3DS memory