Added ability to disable discrete GPU selection.

bkaradzic · Jul 6, 2020 · 7479651 · 7479651
1 parent a84b13a
commit 7479651
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Showing 2 changed files with 8 additions and 2 deletions.
diff --git a/src/bgfx.cpp b/src/bgfx.cpp
@@ -5078,7 +5078,7 @@ namespace bgfx
 	}
 } // namespace bgfx
 
-#if BX_PLATFORM_WINDOWS
+#if BGFX_CONFIG_PREFER_DISCRETE_GPU
 extern "C"
 {
 	// When laptop setup has integrated and discrete GPU, following driver workarounds will
@@ -5094,7 +5094,7 @@ extern "C"
 	//
 	__declspec(dllexport) uint32_t AmdPowerXpressRequestHighPerformance = UINT32_C(1);
 }
-#endif // BX_PLATFORM_WINDOWS
+#endif // BGFX_CONFIG_PREFER_DISCRETE_GPU
 
 #define BGFX_TEXTURE_FORMAT_BIMG(_fmt) \
 	BX_STATIC_ASSERT(uint32_t(bgfx::TextureFormat::_fmt) == uint32_t(bimg::TextureFormat::_fmt) )

diff --git a/src/config.h b/src/config.h
@@ -361,4 +361,10 @@ BX_STATIC_ASSERT(bx::isPowerOf2(BGFX_CONFIG_MAX_VIEWS), "BGFX_CONFIG_MAX_VIEWS m
 #	define BGFX_CONFIG_MAX_BACK_BUFFERS 4
 #endif // BGFX_CONFIG_MAX_BACK_BUFFERS
 
+#ifndef BGFX_CONFIG_PREFER_DISCRETE_GPU
+// On laptops with integrated and discrete GPU, prefer selection of discrete GPU.
+// nVidia and AMD, on Windows only.
+#	define BGFX_CONFIG_PREFER_DISCRETE_GPU BX_PLATFORM_WINDOWS
+#endif // BGFX_CONFIG_PREFER_DISCRETE_GPU
+
 #endif // BGFX_CONFIG_H_HEADER_GUARD