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GPU/HW: Implement oversized VRAM fills in hardware

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Fixes downscaling in Bugs and Taz PAL.
This commit is contained in:
Connor McLaughlin
2021-07-21 19:22:04 +10:00
parent 7ea78ad2df
commit 70209db402
12 changed files with 146 additions and 140 deletions
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65
src/core/gpu_hw_shadergen.cpp
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@ -997,27 +997,6 @@ float4 SampleFromVRAM(uint4 texpage, float2 coords)
return ss.str();
}
std::string GPU_HW_ShaderGen::GenerateInterlacedFillFragmentShader()
{
std::stringstream ss;
WriteHeader(ss);
WriteCommonFunctions(ss);
DeclareUniformBuffer(ss, {"float4 u_fill_color", "uint u_interlaced_displayed_field"}, true);
DeclareFragmentEntryPoint(ss, 0, 1, {}, true, 1, true);
ss << R"(
{
if ((fixYCoord(uint(v_pos.y)) & 1u) == u_interlaced_displayed_field)
discard;
o_col0 = u_fill_color;
o_depth = u_fill_color.a;
}
)";
return ss.str();
}
std::string GPU_HW_ShaderGen::GenerateDisplayFragmentShader(bool depth_24bit,
GPU_HW::InterlacedRenderMode interlace_mode,
bool smooth_chroma)
@ -1324,6 +1303,50 @@ std::string GPU_HW_ShaderGen::GenerateVRAMCopyFragmentShader()
return ss.str();
}
std::string GPU_HW_ShaderGen::GenerateVRAMFillFragmentShader(bool wrapped, bool interlaced)
{
std::stringstream ss;
WriteHeader(ss);
WriteCommonFunctions(ss);
DefineMacro(ss, "PGXP_DEPTH", m_pgxp_depth);
DefineMacro(ss, "WRAPPED", wrapped);
DefineMacro(ss, "INTERLACED", interlaced);
DeclareUniformBuffer(
ss, {"uint2 u_dst_coords", "uint2 u_end_coords", "float4 u_fill_color", "uint u_interlaced_displayed_field"}, true);
DeclareFragmentEntryPoint(ss, 0, 1, {}, interlaced || wrapped, 1, true, false, false, false);
ss << R"(
{
#if INTERLACED || WRAPPED
uint2 dst_coords = uint2(uint(v_pos.x), fixYCoord(uint(v_pos.y)));
#endif
#if INTERLACED
if ((dst_coords.y & 1u) == u_interlaced_displayed_field)
discard;
#endif
#if WRAPPED
// make sure it's not oversized and out of range
if ((dst_coords.x < u_dst_coords.x && dst_coords.x >= u_end_coords.x) ||
(dst_coords.y < u_dst_coords.y && dst_coords.y >= u_end_coords.y))
{
discard;
}
#endif
o_col0 = u_fill_color;
#if !PGXP_DEPTH
o_depth = u_fill_color.a;
#else
o_depth = 1.0f;
#endif
})";
return ss.str();
}
std::string GPU_HW_ShaderGen::GenerateVRAMUpdateDepthFragmentShader()
{
std::stringstream ss;