ppsspp/GPU/GLES/FragmentShaderGenerator.h
Unknown W. Brackets f0676b0c85 Optimize color tests against zero.
They seem to be somewhat common.  Speeds up Tales of Phantasia X a bit.
2015-03-08 19:08:21 -07:00

62 lines
1.7 KiB
C

// Copyright (c) 2012- PPSSPP Project.
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, version 2.0 or later versions.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License 2.0 for more details.
// A copy of the GPL 2.0 should have been included with the program.
// If not, see http://www.gnu.org/licenses/
// Official git repository and contact information can be found at
// https://github.com/hrydgard/ppsspp and http://www.ppsspp.org/.
#pragma once
#include "Globals.h"
struct ShaderID;
void ComputeFragmentShaderID(ShaderID *id);
void GenerateFragmentShader(char *buffer);
enum StencilValueType {
STENCIL_VALUE_UNIFORM,
STENCIL_VALUE_ZERO,
STENCIL_VALUE_ONE,
STENCIL_VALUE_KEEP,
STENCIL_VALUE_INVERT,
STENCIL_VALUE_INCR_4,
STENCIL_VALUE_INCR_8,
STENCIL_VALUE_DECR_4,
STENCIL_VALUE_DECR_8,
};
enum ReplaceAlphaType {
REPLACE_ALPHA_NO = 0,
REPLACE_ALPHA_YES = 1,
REPLACE_ALPHA_DUALSOURCE = 2,
};
enum ReplaceBlendType {
REPLACE_BLEND_NO,
REPLACE_BLEND_STANDARD,
REPLACE_BLEND_PRE_SRC,
REPLACE_BLEND_PRE_SRC_2X_ALPHA,
REPLACE_BLEND_2X_ALPHA,
REPLACE_BLEND_2X_SRC,
REPLACE_BLEND_COPY_FBO,
};
bool IsAlphaTestAgainstZero();
bool IsAlphaTestTriviallyTrue();
bool IsColorTestAgainstZero();
bool IsColorTestTriviallyTrue();
StencilValueType ReplaceAlphaWithStencilType();
ReplaceAlphaType ReplaceAlphaWithStencil(ReplaceBlendType replaceBlend);
ReplaceBlendType ReplaceBlendWithShader();