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ShaderGen: Support writing integer colors when logic op is enabled

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This is required for D3D to support logic op.
This commit is contained in:
Stenzek
2017-09-03 16:32:37 +10:00
parent 3dd675e613
commit 0622979d3b
6 changed files with 68 additions and 19 deletions
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26
Source/Core/VideoCommon/PixelShaderGen.cpp
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@ -175,6 +175,7 @@ PixelShaderUid GetPixelShaderUid()
uid_data->rgba6_format =
bpmem.zcontrol.pixel_format == PEControl::RGBA6_Z24 && !g_ActiveConfig.bForceTrueColor;
uid_data->dither = bpmem.blendmode.dither && uid_data->rgba6_format;
uid_data->uint_output = bpmem.blendmode.UseLogicOp();
u32 numStages = uid_data->genMode_numtevstages + 1;
@ -434,7 +435,7 @@ static void SampleTexture(ShaderCode& out, const char* texcoords, const char* te
static void WriteAlphaTest(ShaderCode& out, const pixel_shader_uid_data* uid_data, APIType ApiType,
bool per_pixel_depth, bool use_dual_source);
static void WriteFog(ShaderCode& out, const pixel_shader_uid_data* uid_data);
static void WriteColor(ShaderCode& out, const pixel_shader_uid_data* uid_data,
static void WriteColor(ShaderCode& out, APIType api_type, const pixel_shader_uid_data* uid_data,
bool use_dual_source);
ShaderCode GeneratePixelShaderCode(APIType ApiType, const ShaderHostConfig& host_config,
@ -568,8 +569,12 @@ ShaderCode GeneratePixelShaderCode(APIType ApiType, const ShaderHostConfig& host
else // D3D
{
out.Write("void main(\n");
out.Write(" out float4 ocol0 : SV_Target0,\n"
" out float4 ocol1 : SV_Target1,\n%s"
if (uid_data->uint_output)
out.Write(" out uint4 ocol0 : SV_Target,\n");
else
out.Write(" out float4 ocol0 : SV_Target0,\n"
" out float4 ocol1 : SV_Target1,\n");
out.Write("%s"
" in float4 rawpos : SV_Position,\n",
uid_data->per_pixel_depth ? " out float depth : SV_Depth,\n" : "");
@ -778,7 +783,7 @@ ShaderCode GeneratePixelShaderCode(APIType ApiType, const ShaderHostConfig& host
WriteFog(out, uid_data);
// Write the color and alpha values to the framebuffer
WriteColor(out, uid_data, use_dual_source);
WriteColor(out, ApiType, uid_data, use_dual_source);
if (uid_data->bounding_box)
{
@ -1302,8 +1307,19 @@ static void WriteFog(ShaderCode& out, const pixel_shader_uid_data* uid_data)
out.Write("\tprev.rgb = (prev.rgb * (256 - ifog) + " I_FOGCOLOR ".rgb * ifog) >> 8;\n");
}
static void WriteColor(ShaderCode& out, const pixel_shader_uid_data* uid_data, bool use_dual_source)
static void WriteColor(ShaderCode& out, APIType api_type, const pixel_shader_uid_data* uid_data,
bool use_dual_source)
{
// D3D requires that the shader outputs be uint when writing to a uint render target for logic op.
if (api_type == APIType::D3D && uid_data->uint_output)
{
if (uid_data->rgba6_format)
out.Write("\tocol0 = uint4(prev & 0xFC);\n");
else
out.Write("\tocol0 = uint4(prev);\n");
return;
}
if (uid_data->rgba6_format)
out.Write("\tocol0.rgb = float3(prev.rgb >> 2) / 63.0;\n");
else