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GPU: Disable dual-source blending on Mesa Gen7/Gen7.5 

Apparently it's broken. Need to look into it more.
This commit is contained in:
Connor McLaughlin 2020-04-30 01:27:49 +10:00
parent 59f055f4b9
commit 5a6c029814
1 changed files with 16 additions and 2 deletions
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18
src/core/gpu_hw_opengl.cpp
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@ -154,9 +154,14 @@ std::tuple<s32, s32> GPU_HW_OpenGL::ConvertToFramebufferCoordinates(s32 x, s32 y
void GPU_HW_OpenGL::SetCapabilities(HostDisplay* host_display)
{
m_is_gles = (host_display->GetRenderAPI() == HostDisplay::RenderAPI::OpenGLES);
Log_InfoPrintf("Context Type: %s", m_is_gles ? "OpenGL" : "OpenGL ES");
Log_InfoPrintf("GL_VERSION: %s", glGetString(GL_VERSION));
Log_InfoPrintf("GL_RENDERER: %s", glGetString(GL_VERSION));
const char* gl_vendor = reinterpret_cast<const char*>(glGetString(GL_VENDOR));
const char* gl_renderer = reinterpret_cast<const char*>(glGetString(GL_RENDERER));
const char* gl_version = reinterpret_cast<const char*>(glGetString(GL_VERSION));
Log_InfoPrintf("GL_VENDOR: %s", gl_vendor);
Log_InfoPrintf("GL_RENDERER: %s", gl_renderer);
Log_InfoPrintf("GL_VERSION: %s", gl_version);
GLint max_texture_size = VRAM_WIDTH;
glGetIntegerv(GL_MAX_TEXTURE_SIZE, &max_texture_size);
@ -185,6 +190,15 @@ void GPU_HW_OpenGL::SetCapabilities(HostDisplay* host_display)
int max_dual_source_draw_buffers = 0;
glGetIntegerv(GL_MAX_DUAL_SOURCE_DRAW_BUFFERS, &max_dual_source_draw_buffers);
m_supports_dual_source_blend = (max_dual_source_draw_buffers > 0);
// Dual-source blend currently has issues on Mesa for at least Gen7/Gen7.5. This needs more investigation, but just
// disable it for now.
if (std::strstr(gl_renderer, "Mesa DRI Intel(R) Haswell") || std::strstr(gl_renderer, "Mesa DRI Intel(R) Ivybridge"))
{
Log_WarningPrintf("Detected Mesa DRI broken dual-source blend, disabling.");
m_supports_dual_source_blend = false;
}
if (!m_supports_dual_source_blend)
Log_WarningPrintf("Dual-source blending is not supported, this may break some mask effects.");