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86 lines
2.3 KiB
86 lines
2.3 KiB
/* |
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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_SKIA_SHADER_H |
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#define ANDROID_HWUI_SKIA_SHADER_H |
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#include "FloatColor.h" |
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#include "Matrix.h" |
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#include <GLES2/gl2.h> |
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#include <SkShader.h> |
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#include <cutils/compiler.h> |
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namespace android { |
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namespace uirenderer { |
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class Caches; |
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class Extensions; |
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class Texture; |
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struct ProgramDescription; |
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/** |
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* Type of Skia shader in use. |
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* |
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* Note that kBitmap | kGradient = kCompose, since Compose implies |
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* both its component types are in use simultaneously. No other |
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* composition of multiple types is supported. |
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*/ |
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enum SkiaShaderType { |
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kNone_SkiaShaderType = 0, |
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kBitmap_SkiaShaderType = 1, |
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kGradient_SkiaShaderType = 2, |
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kCompose_SkiaShaderType = kBitmap_SkiaShaderType | kGradient_SkiaShaderType, |
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}; |
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struct SkiaShaderData { |
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SkiaShaderType skiaShaderType; |
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struct BitmapShaderData { |
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Texture* bitmapTexture; |
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GLuint bitmapSampler; |
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GLenum wrapS; |
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GLenum wrapT; |
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Matrix4 textureTransform; |
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float textureDimension[2]; |
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} bitmapData; |
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struct GradientShaderData { |
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Matrix4 screenSpace; |
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// simple gradient |
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FloatColor startColor; |
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FloatColor endColor; |
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// complex gradient |
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Texture* gradientTexture; |
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GLuint gradientSampler; |
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GLenum wrapST; |
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} gradientData; |
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}; |
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class SkiaShader { |
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public: |
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static void store(Caches& caches, const SkShader& shader, const Matrix4& modelViewMatrix, |
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GLuint* textureUnit, ProgramDescription* description, |
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SkiaShaderData* outData); |
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static void apply(Caches& caches, const SkiaShaderData& data, |
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const GLsizei width, const GLsizei height); |
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}; |
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}; // namespace uirenderer |
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}; // namespace android |
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#endif // ANDROID_HWUI_SKIA_SHADER_H
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