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Simplify shader blend logic in FragmentShaderGenerator.cpp

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This commit is contained in:
Henrik Rydgård 2020-11-08 12:31:43 +01:00
parent ee46629608
commit 2aa9ee97f4
1 changed files with 18 additions and 17 deletions
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35
GPU/Common/FragmentShaderGenerator.cpp
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@ -104,6 +104,8 @@ bool GenerateFragmentShader(const FShaderID &id, char *buffer, const ShaderLangu
bool earlyFragmentTests = ((!enableAlphaTest && !enableColorTest) || testForceToZero) && !gstate_c.Supports(GPU_ROUND_FRAGMENT_DEPTH_TO_16BIT);
bool useAdrenoBugWorkaround = id.Bit(FS_BIT_NO_DEPTH_CANNOT_DISCARD_STENCIL);
bool readFramebufferTex = replaceBlend == REPLACE_BLEND_COPY_FBO && !gstate_c.Supports(GPU_SUPPORTS_ANY_FRAMEBUFFER_FETCH);
if (compat.shaderLanguage == ShaderLanguage::GLSL_VULKAN) {
if (earlyFragmentTests) {
WRITE(p, "layout (early_fragment_tests) in;\n");
@ -116,10 +118,8 @@ bool GenerateFragmentShader(const FShaderID &id, char *buffer, const ShaderLangu
WRITE(p, "layout (binding = 0) uniform sampler2D tex;\n");
}
if (!isModeClear && replaceBlend > REPLACE_BLEND_STANDARD) {
if (replaceBlend == REPLACE_BLEND_COPY_FBO) {
WRITE(p, "layout (binding = 1) uniform sampler2D fbotex;\n");
}
if (readFramebufferTex) {
WRITE(p, "layout (binding = 1) uniform sampler2D fbotex;\n");
}
if (shaderDepal) {
@ -151,11 +151,13 @@ bool GenerateFragmentShader(const FShaderID &id, char *buffer, const ShaderLangu
if (compat.shaderLanguage == HLSL_D3D9) {
if (doTexture)
WRITE(p, "sampler tex : register(s0);\n");
if (!isModeClear && replaceBlend > REPLACE_BLEND_STANDARD) {
if (replaceBlend == REPLACE_BLEND_COPY_FBO) {
WRITE(p, "vec2 u_fbotexSize : register(c%i);\n", CONST_PS_FBOTEXSIZE);
WRITE(p, "sampler fbotex : register(s1);\n");
}
if (readFramebufferTex) {
WRITE(p, "vec2 u_fbotexSize : register(c%i);\n", CONST_PS_FBOTEXSIZE);
WRITE(p, "sampler fbotex : register(s1);\n");
}
if (replaceBlend > REPLACE_BLEND_STANDARD) {
if (replaceBlendFuncA >= GE_SRCBLEND_FIXA) {
WRITE(p, "float3 u_blendFixA : register(c%i);\n", CONST_PS_BLENDFIXA);
}
@ -244,11 +246,11 @@ bool GenerateFragmentShader(const FShaderID &id, char *buffer, const ShaderLangu
} else if (compat.shaderLanguage == HLSL_D3D9) {
if (doTexture)
WRITE(p, "sampler tex : register(s0);\n");
if (!isModeClear && replaceBlend > REPLACE_BLEND_STANDARD) {
if (replaceBlend == REPLACE_BLEND_COPY_FBO) {
WRITE(p, "vec2 u_fbotexSize : register(c%i);\n", CONST_PS_FBOTEXSIZE);
WRITE(p, "sampler fbotex : register(s1);\n");
}
if (readFramebufferTex) {
WRITE(p, "vec2 u_fbotexSize : register(c%i);\n", CONST_PS_FBOTEXSIZE);
WRITE(p, "sampler fbotex : register(s1);\n");
}
if (replaceBlend > REPLACE_BLEND_STANDARD) {
if (replaceBlendFuncA >= GE_SRCBLEND_FIXA) {
WRITE(p, "float3 u_blendFixA : register(c%i);\n", CONST_PS_BLENDFIXA);
}
@ -276,7 +278,6 @@ bool GenerateFragmentShader(const FShaderID &id, char *buffer, const ShaderLangu
if (enableFog) {
WRITE(p, "float3 u_fogcolor : register(c%i);\n", CONST_PS_FOGCOLOR);
}
} else if (ShaderLanguageIsOpenGL(compat.shaderLanguage)) {
if (shaderDepal && gl_extensions.IsGLES) {
WRITE(p, "precision highp int;\n");
@ -287,7 +288,7 @@ bool GenerateFragmentShader(const FShaderID &id, char *buffer, const ShaderLangu
if (!isModeClear && replaceBlend > REPLACE_BLEND_STANDARD) {
*uniformMask |= DIRTY_SHADERBLEND;
if (!gstate_c.Supports(GPU_SUPPORTS_ANY_FRAMEBUFFER_FETCH) && replaceBlend == REPLACE_BLEND_COPY_FBO) {
if (readFramebufferTex) {
if (!compat.texelFetch) {
WRITE(p, "uniform vec2 u_fbotexSize;\n");
}
@ -869,7 +870,7 @@ bool GenerateFragmentShader(const FShaderID &id, char *buffer, const ShaderLangu
}
if (replaceBlend == REPLACE_BLEND_2X_ALPHA || replaceBlend == REPLACE_BLEND_PRE_SRC_2X_ALPHA) {
WRITE(p, " v.a = v.a * 2.0;\n");
WRITE(p, " v.a *= 2.0;\n");
}
}