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Simplified code for choosing renderer.

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This commit is contained in:
Branimir Karadžić 2016-03-09 15:10:07 -08:00
parent f9e6f05d14
commit ec5cb1b37c
2 changed files with 60 additions and 100 deletions

155
src/bgfx.cpp
View file

@ -1755,122 +1755,83 @@ namespace bgfx
#endif // BX_PLATFORM_WINDOWS
}
static int32_t compareDescending(const void* _lhs, const void* _rhs)
{
return *(const int32_t*)_rhs - *(const int32_t*)_lhs;
}
RendererContextI* rendererCreate(RendererType::Enum _type)
{
RendererType::Enum last = RendererType::Count;
int32_t scores[RendererType::Count];
uint32_t numScores = 0;
if (RendererType::Count == _type)
for (uint32_t ii = 0; ii < RendererType::Count; ++ii)
{
again:
if (BX_ENABLED(BX_PLATFORM_WINDOWS) )
RendererType::Enum renderer = RendererType::Enum(ii);
if (s_rendererCreator[ii].supported)
{
RendererType::Enum first = RendererType::Direct3D9;
RendererType::Enum second = RendererType::Direct3D11;
if (windowsVersionIs(Condition::GreaterEqual, 0x0602) )
int32_t score = 0;
if (_type == renderer)
{
first = RendererType::Direct3D11;
second = RendererType::Direct3D12;
if (!s_rendererCreator[second].supported)
score += 1000;
}
score += RendererType::Null != renderer ? 1 : 0;
if (BX_ENABLED(BX_PLATFORM_WINDOWS) )
{
if (windowsVersionIs(Condition::GreaterEqual, 0x0602) )
{
second = RendererType::Direct3D9;
score += RendererType::Direct3D11 == renderer ? 20 : 0;
score += RendererType::Direct3D12 == renderer ? 10 : 0;
}
else if (windowsVersionIs(Condition::GreaterEqual, 0x0601) )
{
score += RendererType::Direct3D11 == renderer ? 20 : 0;
score += RendererType::Direct3D9 == renderer ? 10 : 0;
score += RendererType::Direct3D12 == renderer ? -100 : 0;
}
else
{
score += RendererType::Direct3D12 == renderer ? -100 : 0;
}
}
else if (windowsVersionIs(Condition::GreaterEqual, 0x0601) )
else if (BX_ENABLED(0
|| BX_PLATFORM_ANDROID
|| BX_PLATFORM_EMSCRIPTEN
|| BX_PLATFORM_IOS
|| BX_PLATFORM_NACL
|| BX_PLATFORM_RPI
) )
{
first = RendererType::Direct3D11;
second = RendererType::Direct3D9;
score += RendererType::OpenGLES == renderer ? 20 : 0;
}
else if (BX_ENABLED(0
|| BX_PLATFORM_XBOXONE
|| BX_PLATFORM_WINRT
) )
{
score += RendererType::Direct3D11 == renderer ? 20 : 0;
}
if (s_rendererCreator[first].supported)
{
_type = first;
}
else if (s_rendererCreator[second].supported)
{
_type = second;
}
else if (s_rendererCreator[RendererType::OpenGL].supported)
{
_type = RendererType::OpenGL;
}
else if (s_rendererCreator[RendererType::OpenGLES].supported)
{
_type = RendererType::OpenGLES;
}
else if (s_rendererCreator[RendererType::Direct3D12].supported)
{
_type = RendererType::Direct3D12;
}
else if (s_rendererCreator[RendererType::Vulkan].supported)
{
_type = RendererType::Vulkan;
}
else
{
_type = RendererType::Null;
}
}
else if (BX_ENABLED(BX_PLATFORM_IOS) )
{
if (s_rendererCreator[RendererType::Metal].supported)
{
_type = RendererType::Metal;
}
else if (s_rendererCreator[RendererType::OpenGLES].supported)
{
_type = RendererType::OpenGLES;
}
}
else if (BX_ENABLED(0
|| BX_PLATFORM_ANDROID
|| BX_PLATFORM_EMSCRIPTEN
|| BX_PLATFORM_NACL
|| BX_PLATFORM_RPI
) )
{
_type = RendererType::OpenGLES;
}
else if (BX_ENABLED(BX_PLATFORM_XBOXONE || BX_PLATFORM_WINRT) )
{
_type = RendererType::Direct3D11;
}
else
{
#if 0
if (s_rendererCreator[RendererType::Metal].supported)
{
_type = RendererType::Metal;
}
else
#endif // 0
if (s_rendererCreator[RendererType::OpenGL].supported)
{
_type = RendererType::OpenGL;
}
else if (s_rendererCreator[RendererType::OpenGLES].supported)
{
_type = RendererType::OpenGLES;
}
}
if (!s_rendererCreator[_type].supported)
{
_type = RendererType::Null;
scores[numScores++] = (score<<8) | uint8_t(renderer);
}
}
RendererContextI* renderCtx = s_rendererCreator[_type].createFn();
if (last != _type)
qsort(scores, numScores, sizeof(int32_t), compareDescending);
RendererContextI* renderCtx;
for (uint32_t ii = 0; ii < numScores; ++ii)
{
if (NULL == renderCtx)
RendererType::Enum renderer = RendererType::Enum(scores[ii] & 0xff);
renderCtx = s_rendererCreator[renderer].createFn();
if (NULL != renderCtx)
{
s_rendererCreator[_type].supported = false;
last = _type;
goto again;
s_rendererDestroyFn = s_rendererCreator[renderer].destroyFn;
break;
}
s_rendererDestroyFn = s_rendererCreator[_type].destroyFn;
s_rendererCreator[renderer].supported = false;
}
return renderCtx;

5
src/renderer_d3d11.cpp
View file

@ -912,7 +912,6 @@ namespace bgfx { namespace d3d11
D3D_FEATURE_LEVEL_10_0,
D3D_FEATURE_LEVEL_9_3,
D3D_FEATURE_LEVEL_9_2,
D3D_FEATURE_LEVEL_9_1,
};
for (;;)
@ -1216,10 +1215,10 @@ BX_PRAGMA_DIAGNOSTIC_POP();
| BGFX_CAPS_DRAW_INDIRECT
| BGFX_CAPS_TEXTURE_BLIT
| BGFX_CAPS_TEXTURE_READ_BACK
| BGFX_CAPS_OCCLUSION_QUERY
| ( (m_featureLevel >= D3D_FEATURE_LEVEL_9_2) ? BGFX_CAPS_OCCLUSION_QUERY : 0)
);
m_timerQuerySupport = m_featureLevel >= D3D_FEATURE_LEVEL_9_3;
m_timerQuerySupport = m_featureLevel >= D3D_FEATURE_LEVEL_10_0;
if (m_featureLevel <= D3D_FEATURE_LEVEL_9_2)
{