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gl_format_reinterpreter.cpp: attempt to skip D24S8 to RGBA8 reinterpretation fast path for older nvidia GPUs,

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additionally check for GL_ARB_copy_image in the fallback path
This commit is contained in:
SachinVin 2021-10-06 22:22:26 +05:30
parent 6183b5d76c
commit e8269a9e36
1 changed files with 8 additions and 3 deletions
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src/video_core/renderer_opengl/gl_format_reinterpreter.cpp
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@ -373,14 +373,19 @@ class CopyImageSubData final : public FormatReinterpreterBase {
};
FormatReinterpreterOpenGL::FormatReinterpreterOpenGL() {
std::string_view vendor{reinterpret_cast<const char*>(glGetString(GL_VENDOR))};
if (vendor.find("NVIDIA") != vendor.npos) {
// Older Nvidia GPUs don't seem to properly support using glCopyImageSubData to copy D24S8 to
// RGBA8. This is a heuristic check that relies on the newer drivers returning something similar
// to `3.3.0 NVIDIA 471.41`, and older, buggy ones returning just `3.3.0`.
std::string_view version{reinterpret_cast<const char*>(glGetString(GL_VERSION))};
if (version.find("NVIDIA") != version.npos) {
reinterpreters.emplace(PixelFormatPair{PixelFormat::RGBA8, PixelFormat::D24S8},
std::make_unique<CopyImageSubData>());
// Nvidia bends the spec and allows direct copies between color and depth formats
// might as well take advantage of it
LOG_INFO(Render_OpenGL, "Using glCopyImageSubData for D24S8 to RGBA8 reinterpretation");
} else if ((GLAD_GL_ARB_stencil_texturing && GLAD_GL_ARB_texture_storage) || GLES) {
} else if ((GLAD_GL_ARB_stencil_texturing && GLAD_GL_ARB_texture_storage &&
GLAD_GL_ARB_copy_image) ||
GLES) {
reinterpreters.emplace(PixelFormatPair{PixelFormat::RGBA8, PixelFormat::D24S8},
std::make_unique<ShaderD24S8toRGBA8>());
LOG_INFO(Render_OpenGL, "Using shader for D24S8 to RGBA8 reinterpretation");