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GPU/ShaderGen: Use smaller position epsilon on PowerVR

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This commit is contained in:
Connor McLaughlin 2021-05-25 18:42:21 +10:00
parent df3427bb41
commit eaab0cc033
2 changed files with 11 additions and 10 deletions
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2
src/core/gpu_hw_shadergen.cpp
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@ -91,7 +91,7 @@ std::string GPU_HW_ShaderGen::GenerateBatchVertexShader(bool textured)
// OpenGL seems to be off by one pixel in the Y direction due to lower-left origin, but only on // OpenGL seems to be off by one pixel in the Y direction due to lower-left origin, but only on
// Intel and NVIDIA drivers. AMD is fine. V3D requires coordinates to be slightly offset even further. // Intel and NVIDIA drivers. AMD is fine. V3D requires coordinates to be slightly offset even further.
#if API_OPENGL || API_OPENGL_ES #if API_OPENGL || API_OPENGL_ES
#ifdef DRIVER_V3D #ifdef DRIVER_HACK_POS_EPSILON
CONSTANT float POS_EPSILON = 0.0001; CONSTANT float POS_EPSILON = 0.0001;
#else #else
CONSTANT float POS_EPSILON = 0.00001; CONSTANT float POS_EPSILON = 0.00001;

7
src/core/shadergen.cpp
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@ -102,10 +102,11 @@ void ShaderGen::WriteHeader(std::stringstream& ss)
ss << "#extension GL_ARB_blend_func_extended : require\n"; ss << "#extension GL_ARB_blend_func_extended : require\n";
// Test for V3D driver - we have to fudge coordinates slightly. // Test for V3D driver - we have to fudge coordinates slightly.
if (std::strstr(reinterpret_cast<const char*>(glGetString(GL_VENDOR)), "Broadcom") && if ((std::strstr(reinterpret_cast<const char*>(glGetString(GL_VENDOR)), "Broadcom") &&
std::strstr(reinterpret_cast<const char*>(glGetString(GL_RENDERER)), "V3D")) std::strstr(reinterpret_cast<const char*>(glGetString(GL_RENDERER)), "V3D")) ||
std::strstr(reinterpret_cast<const char*>(glGetString(GL_RENDERER)), "PowerVR"))
{ {
ss << "#define DRIVER_V3D 1\n"; ss << "#define DRIVER_HACK_POS_EPSILON 1\n";
} }
} }
else if (m_render_api == HostDisplay::RenderAPI::OpenGL) else if (m_render_api == HostDisplay::RenderAPI::OpenGL)