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glsl_context_get_set: Add alternative cbuf type for broken drivers

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some drivers have a bug bitwise converting floating point cbuf values to uint variables. This adds a workaround for these drivers to make all cbufs uint and convert to floating point as needed.
This commit is contained in:
ameerj 2021-12-27 23:59:32 -05:00
parent 9f34be5a61
commit b84d429c2e
6 changed files with 35 additions and 24 deletions
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9
src/video_core/renderer_opengl/gl_device.cpp
View file

@ -182,17 +182,12 @@ Device::Device() {
shader_backend = Settings::ShaderBackend::GLSL;
}
if (shader_backend == Settings::ShaderBackend::GLSL && is_nvidia &&
!Settings::values.renderer_debug) {
if (shader_backend == Settings::ShaderBackend::GLSL && is_nvidia) {
const std::string_view driver_version = version.substr(13);
const int version_major =
std::atoi(driver_version.substr(0, driver_version.find(".")).data());
if (version_major >= 495) {
LOG_WARNING(Render_OpenGL, "NVIDIA drivers 495 and later causes significant problems "
"with yuzu. Forcing GLASM as a mitigation.");
shader_backend = Settings::ShaderBackend::GLASM;
use_assembly_shaders = true;
has_cbuf_ftou_bug = true;
}
}

5
src/video_core/renderer_opengl/gl_device.h
View file

@ -152,6 +152,10 @@ public:
return need_fastmath_off;
}
bool HasCbufFtouBug() const {
return has_cbuf_ftou_bug;
}
Settings::ShaderBackend GetShaderBackend() const {
return shader_backend;
}
@ -200,6 +204,7 @@ private:
bool has_sparse_texture_2{};
bool warp_size_potentially_larger_than_guest{};
bool need_fastmath_off{};
bool has_cbuf_ftou_bug{};
std::string vendor_name;
};

1
src/video_core/renderer_opengl/gl_shader_cache.cpp
View file

@ -214,6 +214,7 @@ ShaderCache::ShaderCache(RasterizerOpenGL& rasterizer_, Core::Frontend::EmuWindo
.has_broken_fp16_float_controls = false,
.has_gl_component_indexing_bug = device.HasComponentIndexingBug(),
.has_gl_precise_bug = device.HasPreciseBug(),
.has_gl_cbuf_ftou_bug = device.HasCbufFtouBug(),
.ignore_nan_fp_comparisons = true,
.gl_max_compute_smem_size = device.GetMaxComputeSharedMemorySize(),
},