b488004289
Float textures offer better precision for dithering. In addition this change removes two uniforms from gradient shaders. These uniforms were used to dither gradients but their value is a build time constant. Instead we hardcode the value directly in the shader source at compile time. Change-Id: I05e9fd3eef93771843bbd91b453274452dfaefee
68 lines
1.9 KiB
C++
68 lines
1.9 KiB
C++
/*
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* Copyright (C) 2010 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef ANDROID_HWUI_PROGRAM_CACHE_H
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#define ANDROID_HWUI_PROGRAM_CACHE_H
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#include <utils/KeyedVector.h>
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#include <utils/Log.h>
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#include <utils/String8.h>
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#include <GLES2/gl2.h>
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#include "Debug.h"
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#include "Program.h"
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#include "Properties.h"
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namespace android {
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namespace uirenderer {
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///////////////////////////////////////////////////////////////////////////////
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// Cache
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///////////////////////////////////////////////////////////////////////////////
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/**
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* Generates and caches program. Programs are generated based on
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* ProgramDescriptions.
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*/
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class ProgramCache {
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public:
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ProgramCache();
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~ProgramCache();
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Program* get(const ProgramDescription& description);
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void clear();
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private:
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Program* generateProgram(const ProgramDescription& description, programid key);
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String8 generateVertexShader(const ProgramDescription& description);
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String8 generateFragmentShader(const ProgramDescription& description);
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void generateBlend(String8& shader, const char* name, SkXfermode::Mode mode);
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void generateTextureWrap(String8& shader, GLenum wrapS, GLenum wrapT);
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void printLongString(const String8& shader) const;
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KeyedVector<programid, Program*> mCache;
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const bool mHasES3;
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}; // class ProgramCache
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}; // namespace uirenderer
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}; // namespace android
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#endif // ANDROID_HWUI_PROGRAM_CACHE_H
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