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PixelShader: Store fog color as an integer.

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This commit is contained in:
Tony Wasserka
2013-10-27 13:10:00 +01:00
parent 0238a56816
commit 68e91f0d55
4 changed files with 34 additions and 28 deletions
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20
Source/Core/VideoCommon/PixelShaderGen.cpp
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@ -290,7 +290,8 @@ static inline void GeneratePixelShader(T& out, DSTALPHA_MODE dstAlphaMode, API_T
DeclareUniform(out, ApiType, C_ZBIAS, "float4", I_ZBIAS"[2]");
DeclareUniform(out, ApiType, C_INDTEXSCALE, "float4", I_INDTEXSCALE"[2]");
DeclareUniform(out, ApiType, C_INDTEXMTX, "int4", I_INDTEXMTX"[6]");
DeclareUniform(out, ApiType, C_FOG, "float4", I_FOG"[3]");
DeclareUniform(out, ApiType, C_FOGCOLOR, "int4", I_FOGCOLOR);
DeclareUniform(out, ApiType, C_FOG, "float4", I_FOG"[2]");
// For pixel lighting - TODO: Should only be defined when per pixel lighting is enabled!
DeclareUniform(out, ApiType, C_PLIGHTS, "float4", I_PLIGHTS"[40]");
@ -1044,18 +1045,19 @@ static inline void WriteFog(T& out, pixel_shader_uid_data& uid_data)
uid_data.fog_proj = bpmem.fog.c_proj_fsel.proj;
out.SetConstantsUsed(C_FOG, C_FOG+1);
out.SetConstantsUsed(C_FOGCOLOR, C_FOGCOLOR);
out.SetConstantsUsed(C_FOG, C_FOG);
if (bpmem.fog.c_proj_fsel.proj == 0)
{
// perspective
// ze = A/(B - (Zs >> B_SHF)
out.Write("\tfloat ze = " I_FOG"[1].x / (" I_FOG"[1].y - (zCoord / " I_FOG"[1].w));\n");
out.Write("\tfloat ze = " I_FOG"[0].x / (" I_FOG"[0].y - (zCoord / " I_FOG"[0].w));\n");
}
else
{
// orthographic
// ze = a*Zs (here, no B_SHF)
out.Write("\tfloat ze = " I_FOG"[1].x * zCoord;\n");
out.Write("\tfloat ze = " I_FOG"[0].x * zCoord;\n");
}
// x_adjust = sqrt((x-center)^2 + k^2)/k
@ -1064,13 +1066,13 @@ static inline void WriteFog(T& out, pixel_shader_uid_data& uid_data)
uid_data.fog_RangeBaseEnabled = bpmem.fogRange.Base.Enabled;
if (bpmem.fogRange.Base.Enabled)
{
out.SetConstantsUsed(C_FOG+2, C_FOG+2);
out.Write("\tfloat x_adjust = (2.0 * (clipPos.x / " I_FOG"[2].y)) - 1.0 - " I_FOG"[2].x;\n");
out.Write("\tx_adjust = sqrt(x_adjust * x_adjust + " I_FOG"[2].z * " I_FOG"[2].z) / " I_FOG"[2].z;\n");
out.SetConstantsUsed(C_FOG+1, C_FOG+1);
out.Write("\tfloat x_adjust = (2.0 * (clipPos.x / " I_FOG"[1].y)) - 1.0 - " I_FOG"[1].x;\n");
out.Write("\tx_adjust = sqrt(x_adjust * x_adjust + " I_FOG"[1].z * " I_FOG"[1].z) / " I_FOG"[1].z;\n");
out.Write("\tze *= x_adjust;\n");
}
out.Write("\tfloat fog = clamp(ze - " I_FOG"[1].z, 0.0, 1.0);\n");
out.Write("\tfloat fog = clamp(ze - " I_FOG"[0].z, 0.0, 1.0);\n");
if (bpmem.fog.c_proj_fsel.fsel > 3)
{
@ -1083,7 +1085,7 @@ static inline void WriteFog(T& out, pixel_shader_uid_data& uid_data)
}
out.Write("\tint ifog = int(round(fog * 256.0));\n");
out.Write("\tiprev.rgb = (iprev.rgb * (256 - ifog) + int(" I_FOG"[0].rgb * 256.0 * ifog)) >> 8;\n");
out.Write("\tiprev.rgb = (iprev.rgb * (256 - ifog) + " I_FOGCOLOR".rgb * ifog) >> 8;\n");
}
void GetPixelShaderUid(PixelShaderUid& object, DSTALPHA_MODE dstAlphaMode, API_TYPE ApiType, u32 components)