SkiaShader.cpp revision d21b6e1fe337b35f62cf2028e9bd0637fd009a75
106f96e2652e4855b6520ad9dd70583677605b79aRomain Guy/* 206f96e2652e4855b6520ad9dd70583677605b79aRomain Guy * Copyright (C) 2010 The Android Open Source Project 306f96e2652e4855b6520ad9dd70583677605b79aRomain Guy * 406f96e2652e4855b6520ad9dd70583677605b79aRomain Guy * Licensed under the Apache License, Version 2.0 (the "License"); 506f96e2652e4855b6520ad9dd70583677605b79aRomain Guy * you may not use this file except in compliance with the License. 606f96e2652e4855b6520ad9dd70583677605b79aRomain Guy * You may obtain a copy of the License at 706f96e2652e4855b6520ad9dd70583677605b79aRomain Guy * 806f96e2652e4855b6520ad9dd70583677605b79aRomain Guy * http://www.apache.org/licenses/LICENSE-2.0 906f96e2652e4855b6520ad9dd70583677605b79aRomain Guy * 1006f96e2652e4855b6520ad9dd70583677605b79aRomain Guy * Unless required by applicable law or agreed to in writing, software 1106f96e2652e4855b6520ad9dd70583677605b79aRomain Guy * distributed under the License is distributed on an "AS IS" BASIS, 1206f96e2652e4855b6520ad9dd70583677605b79aRomain Guy * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 1306f96e2652e4855b6520ad9dd70583677605b79aRomain Guy * See the License for the specific language governing permissions and 1406f96e2652e4855b6520ad9dd70583677605b79aRomain Guy * limitations under the License. 1506f96e2652e4855b6520ad9dd70583677605b79aRomain Guy */ 1606f96e2652e4855b6520ad9dd70583677605b79aRomain Guy 1706f96e2652e4855b6520ad9dd70583677605b79aRomain Guy#define LOG_TAG "OpenGLRenderer" 1806f96e2652e4855b6520ad9dd70583677605b79aRomain Guy 1906f96e2652e4855b6520ad9dd70583677605b79aRomain Guy#include <utils/Log.h> 2006f96e2652e4855b6520ad9dd70583677605b79aRomain Guy 2106f96e2652e4855b6520ad9dd70583677605b79aRomain Guy#include <SkMatrix.h> 2206f96e2652e4855b6520ad9dd70583677605b79aRomain Guy 2306f96e2652e4855b6520ad9dd70583677605b79aRomain Guy#include "SkiaShader.h" 2406f96e2652e4855b6520ad9dd70583677605b79aRomain Guy#include "Texture.h" 2506f96e2652e4855b6520ad9dd70583677605b79aRomain Guy#include "Matrix.h" 2606f96e2652e4855b6520ad9dd70583677605b79aRomain Guy 2706f96e2652e4855b6520ad9dd70583677605b79aRomain Guynamespace android { 2806f96e2652e4855b6520ad9dd70583677605b79aRomain Guynamespace uirenderer { 2906f96e2652e4855b6520ad9dd70583677605b79aRomain Guy 3006f96e2652e4855b6520ad9dd70583677605b79aRomain Guy/////////////////////////////////////////////////////////////////////////////// 3106f96e2652e4855b6520ad9dd70583677605b79aRomain Guy// Support 3206f96e2652e4855b6520ad9dd70583677605b79aRomain Guy/////////////////////////////////////////////////////////////////////////////// 3306f96e2652e4855b6520ad9dd70583677605b79aRomain Guy 3406f96e2652e4855b6520ad9dd70583677605b79aRomain Guystatic const GLenum gTextureUnitsMap[] = { 3506f96e2652e4855b6520ad9dd70583677605b79aRomain Guy GL_TEXTURE0, 3606f96e2652e4855b6520ad9dd70583677605b79aRomain Guy GL_TEXTURE1, 3706f96e2652e4855b6520ad9dd70583677605b79aRomain Guy GL_TEXTURE2 3806f96e2652e4855b6520ad9dd70583677605b79aRomain Guy}; 3906f96e2652e4855b6520ad9dd70583677605b79aRomain Guy 4006f96e2652e4855b6520ad9dd70583677605b79aRomain Guystatic const GLint gTileModes[] = { 4106f96e2652e4855b6520ad9dd70583677605b79aRomain Guy GL_CLAMP_TO_EDGE, // == SkShader::kClamp_TileMode 4206f96e2652e4855b6520ad9dd70583677605b79aRomain Guy GL_REPEAT, // == SkShader::kRepeat_Mode 4306f96e2652e4855b6520ad9dd70583677605b79aRomain Guy GL_MIRRORED_REPEAT // == SkShader::kMirror_TileMode 4406f96e2652e4855b6520ad9dd70583677605b79aRomain Guy}; 4506f96e2652e4855b6520ad9dd70583677605b79aRomain Guy 4606f96e2652e4855b6520ad9dd70583677605b79aRomain Guy/////////////////////////////////////////////////////////////////////////////// 4706f96e2652e4855b6520ad9dd70583677605b79aRomain Guy// Base shader 4806f96e2652e4855b6520ad9dd70583677605b79aRomain Guy/////////////////////////////////////////////////////////////////////////////// 4906f96e2652e4855b6520ad9dd70583677605b79aRomain Guy 5024c00216687ac87fe531dc4d4168ac0c0ca04ea6Romain Guyvoid SkiaShader::copyFrom(const SkiaShader& shader) { 5124c00216687ac87fe531dc4d4168ac0c0ca04ea6Romain Guy mType = shader.mType; 5224c00216687ac87fe531dc4d4168ac0c0ca04ea6Romain Guy mKey = shader.mKey; 5324c00216687ac87fe531dc4d4168ac0c0ca04ea6Romain Guy mTileX = shader.mTileX; 5424c00216687ac87fe531dc4d4168ac0c0ca04ea6Romain Guy mTileY = shader.mTileY; 5524c00216687ac87fe531dc4d4168ac0c0ca04ea6Romain Guy mBlend = shader.mBlend; 5624c00216687ac87fe531dc4d4168ac0c0ca04ea6Romain Guy mUnitMatrix = shader.mUnitMatrix; 5724c00216687ac87fe531dc4d4168ac0c0ca04ea6Romain Guy mShaderMatrix = shader.mShaderMatrix; 5824c00216687ac87fe531dc4d4168ac0c0ca04ea6Romain Guy mGenerationId = shader.mGenerationId; 5924c00216687ac87fe531dc4d4168ac0c0ca04ea6Romain Guy} 6024c00216687ac87fe531dc4d4168ac0c0ca04ea6Romain Guy 6106f96e2652e4855b6520ad9dd70583677605b79aRomain GuySkiaShader::SkiaShader(Type type, SkShader* key, SkShader::TileMode tileX, 6206f96e2652e4855b6520ad9dd70583677605b79aRomain Guy SkShader::TileMode tileY, SkMatrix* matrix, bool blend): 6314830948d02f768c41b97b7a8d15e1b3cab78267Romain Guy mType(type), mKey(key), mTileX(tileX), mTileY(tileY), mBlend(blend) { 6414830948d02f768c41b97b7a8d15e1b3cab78267Romain Guy setMatrix(matrix); 6524c00216687ac87fe531dc4d4168ac0c0ca04ea6Romain Guy mGenerationId = 0; 6606f96e2652e4855b6520ad9dd70583677605b79aRomain Guy} 6706f96e2652e4855b6520ad9dd70583677605b79aRomain Guy 6806f96e2652e4855b6520ad9dd70583677605b79aRomain GuySkiaShader::~SkiaShader() { 6906f96e2652e4855b6520ad9dd70583677605b79aRomain Guy} 7006f96e2652e4855b6520ad9dd70583677605b79aRomain Guy 7106f96e2652e4855b6520ad9dd70583677605b79aRomain Guyvoid SkiaShader::describe(ProgramDescription& description, const Extensions& extensions) { 7206f96e2652e4855b6520ad9dd70583677605b79aRomain Guy} 7306f96e2652e4855b6520ad9dd70583677605b79aRomain Guy 7406f96e2652e4855b6520ad9dd70583677605b79aRomain Guyvoid SkiaShader::setupProgram(Program* program, const mat4& modelView, const Snapshot& snapshot, 7506f96e2652e4855b6520ad9dd70583677605b79aRomain Guy GLuint* textureUnit) { 7606f96e2652e4855b6520ad9dd70583677605b79aRomain Guy} 7706f96e2652e4855b6520ad9dd70583677605b79aRomain Guy 7801d065795794fa56be660d6346e4830eb7e90a41Romain Guyvoid SkiaShader::bindTexture(Texture* texture, GLenum wrapS, GLenum wrapT) { 798164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy glBindTexture(GL_TEXTURE_2D, texture->id); 80d21b6e1fe337b35f62cf2028e9bd0637fd009a75Romain Guy texture->setWrapST(wrapS, wrapT); 8106f96e2652e4855b6520ad9dd70583677605b79aRomain Guy} 8206f96e2652e4855b6520ad9dd70583677605b79aRomain Guy 8314830948d02f768c41b97b7a8d15e1b3cab78267Romain Guyvoid SkiaShader::computeScreenSpaceMatrix(mat4& screenSpace, const mat4& modelView) { 8414830948d02f768c41b97b7a8d15e1b3cab78267Romain Guy screenSpace.loadMultiply(mUnitMatrix, mShaderMatrix); 8514830948d02f768c41b97b7a8d15e1b3cab78267Romain Guy screenSpace.multiply(modelView); 8614830948d02f768c41b97b7a8d15e1b3cab78267Romain Guy} 8714830948d02f768c41b97b7a8d15e1b3cab78267Romain Guy 8806f96e2652e4855b6520ad9dd70583677605b79aRomain Guy/////////////////////////////////////////////////////////////////////////////// 8906f96e2652e4855b6520ad9dd70583677605b79aRomain Guy// Bitmap shader 9006f96e2652e4855b6520ad9dd70583677605b79aRomain Guy/////////////////////////////////////////////////////////////////////////////// 9106f96e2652e4855b6520ad9dd70583677605b79aRomain Guy 9206f96e2652e4855b6520ad9dd70583677605b79aRomain GuySkiaBitmapShader::SkiaBitmapShader(SkBitmap* bitmap, SkShader* key, SkShader::TileMode tileX, 9306f96e2652e4855b6520ad9dd70583677605b79aRomain Guy SkShader::TileMode tileY, SkMatrix* matrix, bool blend): 949cccc2b9bdd4850a3f9679569aaec3ab98477a5dRomain Guy SkiaShader(kBitmap, key, tileX, tileY, matrix, blend), mBitmap(bitmap), mTexture(NULL) { 9514830948d02f768c41b97b7a8d15e1b3cab78267Romain Guy updateLocalMatrix(matrix); 9606f96e2652e4855b6520ad9dd70583677605b79aRomain Guy} 9706f96e2652e4855b6520ad9dd70583677605b79aRomain Guy 9824c00216687ac87fe531dc4d4168ac0c0ca04ea6Romain GuySkiaShader* SkiaBitmapShader::copy() { 9924c00216687ac87fe531dc4d4168ac0c0ca04ea6Romain Guy SkiaBitmapShader* copy = new SkiaBitmapShader(); 10024c00216687ac87fe531dc4d4168ac0c0ca04ea6Romain Guy copy->copyFrom(*this); 10124c00216687ac87fe531dc4d4168ac0c0ca04ea6Romain Guy copy->mBitmap = mBitmap; 10224c00216687ac87fe531dc4d4168ac0c0ca04ea6Romain Guy return copy; 10324c00216687ac87fe531dc4d4168ac0c0ca04ea6Romain Guy} 10424c00216687ac87fe531dc4d4168ac0c0ca04ea6Romain Guy 10506f96e2652e4855b6520ad9dd70583677605b79aRomain Guyvoid SkiaBitmapShader::describe(ProgramDescription& description, const Extensions& extensions) { 1068164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy Texture* texture = mTextureCache->get(mBitmap); 1079cccc2b9bdd4850a3f9679569aaec3ab98477a5dRomain Guy if (!texture) return; 1089cccc2b9bdd4850a3f9679569aaec3ab98477a5dRomain Guy mTexture = texture; 10906f96e2652e4855b6520ad9dd70583677605b79aRomain Guy 11006f96e2652e4855b6520ad9dd70583677605b79aRomain Guy const float width = texture->width; 11106f96e2652e4855b6520ad9dd70583677605b79aRomain Guy const float height = texture->height; 11206f96e2652e4855b6520ad9dd70583677605b79aRomain Guy 11306f96e2652e4855b6520ad9dd70583677605b79aRomain Guy description.hasBitmap = true; 11406f96e2652e4855b6520ad9dd70583677605b79aRomain Guy // The driver does not support non-power of two mirrored/repeated 11506f96e2652e4855b6520ad9dd70583677605b79aRomain Guy // textures, so do it ourselves 11661c8c9c5b2006d18e9310b6521c65b36ffe75ce4Romain Guy if (!extensions.hasNPot() && (!isPowerOfTwo(width) || !isPowerOfTwo(height)) && 11761c8c9c5b2006d18e9310b6521c65b36ffe75ce4Romain Guy (mTileX != SkShader::kClamp_TileMode || mTileY != SkShader::kClamp_TileMode)) { 11806f96e2652e4855b6520ad9dd70583677605b79aRomain Guy description.isBitmapNpot = true; 11906f96e2652e4855b6520ad9dd70583677605b79aRomain Guy description.bitmapWrapS = gTileModes[mTileX]; 12006f96e2652e4855b6520ad9dd70583677605b79aRomain Guy description.bitmapWrapT = gTileModes[mTileY]; 12129d8997bd43b7c4ad37fc3d6f91eaafa74913c88Romain Guy mWrapS = GL_CLAMP_TO_EDGE; 12229d8997bd43b7c4ad37fc3d6f91eaafa74913c88Romain Guy mWrapT = GL_CLAMP_TO_EDGE; 12329d8997bd43b7c4ad37fc3d6f91eaafa74913c88Romain Guy } else { 12429d8997bd43b7c4ad37fc3d6f91eaafa74913c88Romain Guy mWrapS = gTileModes[mTileX]; 12529d8997bd43b7c4ad37fc3d6f91eaafa74913c88Romain Guy mWrapT = gTileModes[mTileY]; 12606f96e2652e4855b6520ad9dd70583677605b79aRomain Guy } 12706f96e2652e4855b6520ad9dd70583677605b79aRomain Guy} 12806f96e2652e4855b6520ad9dd70583677605b79aRomain Guy 12906f96e2652e4855b6520ad9dd70583677605b79aRomain Guyvoid SkiaBitmapShader::setupProgram(Program* program, const mat4& modelView, 13006f96e2652e4855b6520ad9dd70583677605b79aRomain Guy const Snapshot& snapshot, GLuint* textureUnit) { 13106f96e2652e4855b6520ad9dd70583677605b79aRomain Guy GLuint textureSlot = (*textureUnit)++; 13206f96e2652e4855b6520ad9dd70583677605b79aRomain Guy glActiveTexture(gTextureUnitsMap[textureSlot]); 1339cccc2b9bdd4850a3f9679569aaec3ab98477a5dRomain Guy 1348164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy Texture* texture = mTexture; 1359cccc2b9bdd4850a3f9679569aaec3ab98477a5dRomain Guy mTexture = NULL; 1369cccc2b9bdd4850a3f9679569aaec3ab98477a5dRomain Guy if (!texture) return; 1379cccc2b9bdd4850a3f9679569aaec3ab98477a5dRomain Guy const AutoTexture autoCleanup(texture); 13806f96e2652e4855b6520ad9dd70583677605b79aRomain Guy 13906f96e2652e4855b6520ad9dd70583677605b79aRomain Guy const float width = texture->width; 14006f96e2652e4855b6520ad9dd70583677605b79aRomain Guy const float height = texture->height; 14106f96e2652e4855b6520ad9dd70583677605b79aRomain Guy 14206f96e2652e4855b6520ad9dd70583677605b79aRomain Guy mat4 textureTransform; 14314830948d02f768c41b97b7a8d15e1b3cab78267Romain Guy computeScreenSpaceMatrix(textureTransform, modelView); 14406f96e2652e4855b6520ad9dd70583677605b79aRomain Guy 14506f96e2652e4855b6520ad9dd70583677605b79aRomain Guy // Uniforms 14601d065795794fa56be660d6346e4830eb7e90a41Romain Guy bindTexture(texture, mWrapS, mWrapT); 147b50149825fae95b2918bcf67b2ddb773b9797068Romain Guy // Assume linear here; we should really check the transform in 148b50149825fae95b2918bcf67b2ddb773b9797068Romain Guy // ::updateTransforms() but we don't have the texture object 149b50149825fae95b2918bcf67b2ddb773b9797068Romain Guy // available at that point. The optimization is not worth the 150b50149825fae95b2918bcf67b2ddb773b9797068Romain Guy // effort for now. 151d21b6e1fe337b35f62cf2028e9bd0637fd009a75Romain Guy texture->setFilter(GL_LINEAR); 152e3c26851dc315b730ea0fe5ef35bb1db81f6d675Romain Guy 15306f96e2652e4855b6520ad9dd70583677605b79aRomain Guy glUniform1i(program->getUniform("bitmapSampler"), textureSlot); 15406f96e2652e4855b6520ad9dd70583677605b79aRomain Guy glUniformMatrix4fv(program->getUniform("textureTransform"), 1, 15506f96e2652e4855b6520ad9dd70583677605b79aRomain Guy GL_FALSE, &textureTransform.data[0]); 15606f96e2652e4855b6520ad9dd70583677605b79aRomain Guy glUniform2f(program->getUniform("textureDimension"), 1.0f / width, 1.0f / height); 15706f96e2652e4855b6520ad9dd70583677605b79aRomain Guy} 15806f96e2652e4855b6520ad9dd70583677605b79aRomain Guy 159759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guyvoid SkiaBitmapShader::updateTransforms(Program* program, const mat4& modelView, 160759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy const Snapshot& snapshot) { 161759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy mat4 textureTransform; 16214830948d02f768c41b97b7a8d15e1b3cab78267Romain Guy computeScreenSpaceMatrix(textureTransform, modelView); 163759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy glUniformMatrix4fv(program->getUniform("textureTransform"), 1, 164759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy GL_FALSE, &textureTransform.data[0]); 165759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy} 166759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy 16706f96e2652e4855b6520ad9dd70583677605b79aRomain Guy/////////////////////////////////////////////////////////////////////////////// 16806f96e2652e4855b6520ad9dd70583677605b79aRomain Guy// Linear gradient shader 16906f96e2652e4855b6520ad9dd70583677605b79aRomain Guy/////////////////////////////////////////////////////////////////////////////// 17006f96e2652e4855b6520ad9dd70583677605b79aRomain Guy 171e3095e0c1e2a4a4f34f741aa386eae56536ca5aaRomain Guystatic void toUnitMatrix(const SkPoint pts[2], SkMatrix* matrix) { 172e3095e0c1e2a4a4f34f741aa386eae56536ca5aaRomain Guy SkVector vec = pts[1] - pts[0]; 173e3095e0c1e2a4a4f34f741aa386eae56536ca5aaRomain Guy const float mag = vec.length(); 174e3095e0c1e2a4a4f34f741aa386eae56536ca5aaRomain Guy const float inv = mag ? 1.0f / mag : 0; 175e3095e0c1e2a4a4f34f741aa386eae56536ca5aaRomain Guy 176e3095e0c1e2a4a4f34f741aa386eae56536ca5aaRomain Guy vec.scale(inv); 177e3095e0c1e2a4a4f34f741aa386eae56536ca5aaRomain Guy matrix->setSinCos(-vec.fY, vec.fX, pts[0].fX, pts[0].fY); 178e3095e0c1e2a4a4f34f741aa386eae56536ca5aaRomain Guy matrix->postTranslate(-pts[0].fX, -pts[0].fY); 179e3095e0c1e2a4a4f34f741aa386eae56536ca5aaRomain Guy matrix->postScale(inv, inv); 180e3095e0c1e2a4a4f34f741aa386eae56536ca5aaRomain Guy} 181e3095e0c1e2a4a4f34f741aa386eae56536ca5aaRomain Guy 18206f96e2652e4855b6520ad9dd70583677605b79aRomain GuySkiaLinearGradientShader::SkiaLinearGradientShader(float* bounds, uint32_t* colors, 18306f96e2652e4855b6520ad9dd70583677605b79aRomain Guy float* positions, int count, SkShader* key, SkShader::TileMode tileMode, 18406f96e2652e4855b6520ad9dd70583677605b79aRomain Guy SkMatrix* matrix, bool blend): 18506f96e2652e4855b6520ad9dd70583677605b79aRomain Guy SkiaShader(kLinearGradient, key, tileMode, tileMode, matrix, blend), 18606f96e2652e4855b6520ad9dd70583677605b79aRomain Guy mBounds(bounds), mColors(colors), mPositions(positions), mCount(count) { 187e3095e0c1e2a4a4f34f741aa386eae56536ca5aaRomain Guy SkPoint points[2]; 188e3095e0c1e2a4a4f34f741aa386eae56536ca5aaRomain Guy points[0].set(bounds[0], bounds[1]); 189e3095e0c1e2a4a4f34f741aa386eae56536ca5aaRomain Guy points[1].set(bounds[2], bounds[3]); 190e3095e0c1e2a4a4f34f741aa386eae56536ca5aaRomain Guy 191e3095e0c1e2a4a4f34f741aa386eae56536ca5aaRomain Guy SkMatrix unitMatrix; 192e3095e0c1e2a4a4f34f741aa386eae56536ca5aaRomain Guy toUnitMatrix(points, &unitMatrix); 193e3095e0c1e2a4a4f34f741aa386eae56536ca5aaRomain Guy mUnitMatrix.load(unitMatrix); 194e3095e0c1e2a4a4f34f741aa386eae56536ca5aaRomain Guy 195e3095e0c1e2a4a4f34f741aa386eae56536ca5aaRomain Guy updateLocalMatrix(matrix); 19606f96e2652e4855b6520ad9dd70583677605b79aRomain Guy} 19706f96e2652e4855b6520ad9dd70583677605b79aRomain Guy 19806f96e2652e4855b6520ad9dd70583677605b79aRomain GuySkiaLinearGradientShader::~SkiaLinearGradientShader() { 19925ee037fee1607e8a77b1f2e259356e74dd6f645Romain Guy delete[] mBounds; 20025ee037fee1607e8a77b1f2e259356e74dd6f645Romain Guy delete[] mColors; 20125ee037fee1607e8a77b1f2e259356e74dd6f645Romain Guy delete[] mPositions; 20206f96e2652e4855b6520ad9dd70583677605b79aRomain Guy} 20306f96e2652e4855b6520ad9dd70583677605b79aRomain Guy 20424c00216687ac87fe531dc4d4168ac0c0ca04ea6Romain GuySkiaShader* SkiaLinearGradientShader::copy() { 20524c00216687ac87fe531dc4d4168ac0c0ca04ea6Romain Guy SkiaLinearGradientShader* copy = new SkiaLinearGradientShader(); 20624c00216687ac87fe531dc4d4168ac0c0ca04ea6Romain Guy copy->copyFrom(*this); 20743ccf4663c822ddd435b7683cc05221f6169c6c3Romain Guy copy->mBounds = new float[4]; 20843ccf4663c822ddd435b7683cc05221f6169c6c3Romain Guy memcpy(copy->mBounds, mBounds, sizeof(float) * 4); 20943ccf4663c822ddd435b7683cc05221f6169c6c3Romain Guy copy->mColors = new uint32_t[mCount]; 21043ccf4663c822ddd435b7683cc05221f6169c6c3Romain Guy memcpy(copy->mColors, mColors, sizeof(uint32_t) * mCount); 21143ccf4663c822ddd435b7683cc05221f6169c6c3Romain Guy copy->mPositions = new float[mCount]; 21243ccf4663c822ddd435b7683cc05221f6169c6c3Romain Guy memcpy(copy->mPositions, mPositions, sizeof(float) * mCount); 21324c00216687ac87fe531dc4d4168ac0c0ca04ea6Romain Guy copy->mCount = mCount; 21424c00216687ac87fe531dc4d4168ac0c0ca04ea6Romain Guy return copy; 21524c00216687ac87fe531dc4d4168ac0c0ca04ea6Romain Guy} 21624c00216687ac87fe531dc4d4168ac0c0ca04ea6Romain Guy 21706f96e2652e4855b6520ad9dd70583677605b79aRomain Guyvoid SkiaLinearGradientShader::describe(ProgramDescription& description, 21806f96e2652e4855b6520ad9dd70583677605b79aRomain Guy const Extensions& extensions) { 21906f96e2652e4855b6520ad9dd70583677605b79aRomain Guy description.hasGradient = true; 220ee916f14cbd1fe1422c063ce2ef7b185e2bc5c6fRomain Guy description.gradientType = ProgramDescription::kGradientLinear; 22106f96e2652e4855b6520ad9dd70583677605b79aRomain Guy} 22206f96e2652e4855b6520ad9dd70583677605b79aRomain Guy 22306f96e2652e4855b6520ad9dd70583677605b79aRomain Guyvoid SkiaLinearGradientShader::setupProgram(Program* program, const mat4& modelView, 22406f96e2652e4855b6520ad9dd70583677605b79aRomain Guy const Snapshot& snapshot, GLuint* textureUnit) { 22506f96e2652e4855b6520ad9dd70583677605b79aRomain Guy GLuint textureSlot = (*textureUnit)++; 22606f96e2652e4855b6520ad9dd70583677605b79aRomain Guy glActiveTexture(gTextureUnitsMap[textureSlot]); 22706f96e2652e4855b6520ad9dd70583677605b79aRomain Guy 2286203f6c8147069976342be8f42add797a50f9557Romain Guy Texture* texture = mGradientCache->get(mColors, mPositions, mCount, mTileX); 22906f96e2652e4855b6520ad9dd70583677605b79aRomain Guy 230e3095e0c1e2a4a4f34f741aa386eae56536ca5aaRomain Guy mat4 screenSpace; 231e3095e0c1e2a4a4f34f741aa386eae56536ca5aaRomain Guy computeScreenSpaceMatrix(screenSpace, modelView); 23206f96e2652e4855b6520ad9dd70583677605b79aRomain Guy 23306f96e2652e4855b6520ad9dd70583677605b79aRomain Guy // Uniforms 23401d065795794fa56be660d6346e4830eb7e90a41Romain Guy bindTexture(texture, gTileModes[mTileX], gTileModes[mTileY]); 23506f96e2652e4855b6520ad9dd70583677605b79aRomain Guy glUniform1i(program->getUniform("gradientSampler"), textureSlot); 23606f96e2652e4855b6520ad9dd70583677605b79aRomain Guy glUniformMatrix4fv(program->getUniform("screenSpace"), 1, GL_FALSE, &screenSpace.data[0]); 23706f96e2652e4855b6520ad9dd70583677605b79aRomain Guy} 23806f96e2652e4855b6520ad9dd70583677605b79aRomain Guy 239759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guyvoid SkiaLinearGradientShader::updateTransforms(Program* program, const mat4& modelView, 240759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy const Snapshot& snapshot) { 241e3095e0c1e2a4a4f34f741aa386eae56536ca5aaRomain Guy mat4 screenSpace; 242e3095e0c1e2a4a4f34f741aa386eae56536ca5aaRomain Guy computeScreenSpaceMatrix(screenSpace, modelView); 243759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy glUniformMatrix4fv(program->getUniform("screenSpace"), 1, GL_FALSE, &screenSpace.data[0]); 244759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy} 245759ea80dca64ad652110a129e0d8bf93fea79f61Romain Guy 24606f96e2652e4855b6520ad9dd70583677605b79aRomain Guy/////////////////////////////////////////////////////////////////////////////// 247ddb80bebb0776e6d852aab6e8bba5d5591847a55Romain Guy// Circular gradient shader 248ddb80bebb0776e6d852aab6e8bba5d5591847a55Romain Guy/////////////////////////////////////////////////////////////////////////////// 249ddb80bebb0776e6d852aab6e8bba5d5591847a55Romain Guy 25014830948d02f768c41b97b7a8d15e1b3cab78267Romain Guystatic void toCircularUnitMatrix(const float x, const float y, const float radius, 25114830948d02f768c41b97b7a8d15e1b3cab78267Romain Guy SkMatrix* matrix) { 25214830948d02f768c41b97b7a8d15e1b3cab78267Romain Guy const float inv = 1.0f / radius; 25314830948d02f768c41b97b7a8d15e1b3cab78267Romain Guy matrix->setTranslate(-x, -y); 25414830948d02f768c41b97b7a8d15e1b3cab78267Romain Guy matrix->postScale(inv, inv); 25514830948d02f768c41b97b7a8d15e1b3cab78267Romain Guy} 25614830948d02f768c41b97b7a8d15e1b3cab78267Romain Guy 257ddb80bebb0776e6d852aab6e8bba5d5591847a55Romain GuySkiaCircularGradientShader::SkiaCircularGradientShader(float x, float y, float radius, 258ddb80bebb0776e6d852aab6e8bba5d5591847a55Romain Guy uint32_t* colors, float* positions, int count, SkShader* key, SkShader::TileMode tileMode, 259ddb80bebb0776e6d852aab6e8bba5d5591847a55Romain Guy SkMatrix* matrix, bool blend): 260ddb80bebb0776e6d852aab6e8bba5d5591847a55Romain Guy SkiaSweepGradientShader(kCircularGradient, x, y, colors, positions, count, key, 26114830948d02f768c41b97b7a8d15e1b3cab78267Romain Guy tileMode, matrix, blend) { 26214830948d02f768c41b97b7a8d15e1b3cab78267Romain Guy SkMatrix unitMatrix; 26314830948d02f768c41b97b7a8d15e1b3cab78267Romain Guy toCircularUnitMatrix(x, y, radius, &unitMatrix); 26414830948d02f768c41b97b7a8d15e1b3cab78267Romain Guy mUnitMatrix.load(unitMatrix); 26514830948d02f768c41b97b7a8d15e1b3cab78267Romain Guy 26614830948d02f768c41b97b7a8d15e1b3cab78267Romain Guy updateLocalMatrix(matrix); 267ddb80bebb0776e6d852aab6e8bba5d5591847a55Romain Guy} 268ddb80bebb0776e6d852aab6e8bba5d5591847a55Romain Guy 26924c00216687ac87fe531dc4d4168ac0c0ca04ea6Romain GuySkiaShader* SkiaCircularGradientShader::copy() { 27024c00216687ac87fe531dc4d4168ac0c0ca04ea6Romain Guy SkiaCircularGradientShader* copy = new SkiaCircularGradientShader(); 27124c00216687ac87fe531dc4d4168ac0c0ca04ea6Romain Guy copy->copyFrom(*this); 27243ccf4663c822ddd435b7683cc05221f6169c6c3Romain Guy copy->mColors = new uint32_t[mCount]; 27343ccf4663c822ddd435b7683cc05221f6169c6c3Romain Guy memcpy(copy->mColors, mColors, sizeof(uint32_t) * mCount); 27443ccf4663c822ddd435b7683cc05221f6169c6c3Romain Guy copy->mPositions = new float[mCount]; 27543ccf4663c822ddd435b7683cc05221f6169c6c3Romain Guy memcpy(copy->mPositions, mPositions, sizeof(float) * mCount); 27624c00216687ac87fe531dc4d4168ac0c0ca04ea6Romain Guy copy->mCount = mCount; 27724c00216687ac87fe531dc4d4168ac0c0ca04ea6Romain Guy return copy; 27824c00216687ac87fe531dc4d4168ac0c0ca04ea6Romain Guy} 27924c00216687ac87fe531dc4d4168ac0c0ca04ea6Romain Guy 280ddb80bebb0776e6d852aab6e8bba5d5591847a55Romain Guyvoid SkiaCircularGradientShader::describe(ProgramDescription& description, 281ddb80bebb0776e6d852aab6e8bba5d5591847a55Romain Guy const Extensions& extensions) { 282ddb80bebb0776e6d852aab6e8bba5d5591847a55Romain Guy description.hasGradient = true; 283ddb80bebb0776e6d852aab6e8bba5d5591847a55Romain Guy description.gradientType = ProgramDescription::kGradientCircular; 284ddb80bebb0776e6d852aab6e8bba5d5591847a55Romain Guy} 285ddb80bebb0776e6d852aab6e8bba5d5591847a55Romain Guy 286ddb80bebb0776e6d852aab6e8bba5d5591847a55Romain Guy/////////////////////////////////////////////////////////////////////////////// 287ee916f14cbd1fe1422c063ce2ef7b185e2bc5c6fRomain Guy// Sweep gradient shader 288ee916f14cbd1fe1422c063ce2ef7b185e2bc5c6fRomain Guy/////////////////////////////////////////////////////////////////////////////// 289ee916f14cbd1fe1422c063ce2ef7b185e2bc5c6fRomain Guy 29014830948d02f768c41b97b7a8d15e1b3cab78267Romain Guystatic void toSweepUnitMatrix(const float x, const float y, SkMatrix* matrix) { 29114830948d02f768c41b97b7a8d15e1b3cab78267Romain Guy matrix->setTranslate(-x, -y); 29214830948d02f768c41b97b7a8d15e1b3cab78267Romain Guy} 29314830948d02f768c41b97b7a8d15e1b3cab78267Romain Guy 294ee916f14cbd1fe1422c063ce2ef7b185e2bc5c6fRomain GuySkiaSweepGradientShader::SkiaSweepGradientShader(float x, float y, uint32_t* colors, 295ee916f14cbd1fe1422c063ce2ef7b185e2bc5c6fRomain Guy float* positions, int count, SkShader* key, SkMatrix* matrix, bool blend): 296ee916f14cbd1fe1422c063ce2ef7b185e2bc5c6fRomain Guy SkiaShader(kSweepGradient, key, SkShader::kClamp_TileMode, 297ee916f14cbd1fe1422c063ce2ef7b185e2bc5c6fRomain Guy SkShader::kClamp_TileMode, matrix, blend), 29814830948d02f768c41b97b7a8d15e1b3cab78267Romain Guy mColors(colors), mPositions(positions), mCount(count) { 29914830948d02f768c41b97b7a8d15e1b3cab78267Romain Guy SkMatrix unitMatrix; 30014830948d02f768c41b97b7a8d15e1b3cab78267Romain Guy toSweepUnitMatrix(x, y, &unitMatrix); 30114830948d02f768c41b97b7a8d15e1b3cab78267Romain Guy mUnitMatrix.load(unitMatrix); 30214830948d02f768c41b97b7a8d15e1b3cab78267Romain Guy 30314830948d02f768c41b97b7a8d15e1b3cab78267Romain Guy updateLocalMatrix(matrix); 304ee916f14cbd1fe1422c063ce2ef7b185e2bc5c6fRomain Guy} 305ee916f14cbd1fe1422c063ce2ef7b185e2bc5c6fRomain Guy 306ddb80bebb0776e6d852aab6e8bba5d5591847a55Romain GuySkiaSweepGradientShader::SkiaSweepGradientShader(Type type, float x, float y, uint32_t* colors, 307ddb80bebb0776e6d852aab6e8bba5d5591847a55Romain Guy float* positions, int count, SkShader* key, SkShader::TileMode tileMode, 308ddb80bebb0776e6d852aab6e8bba5d5591847a55Romain Guy SkMatrix* matrix, bool blend): 309ddb80bebb0776e6d852aab6e8bba5d5591847a55Romain Guy SkiaShader(type, key, tileMode, tileMode, matrix, blend), 31014830948d02f768c41b97b7a8d15e1b3cab78267Romain Guy mColors(colors), mPositions(positions), mCount(count) { 311ddb80bebb0776e6d852aab6e8bba5d5591847a55Romain Guy} 312ddb80bebb0776e6d852aab6e8bba5d5591847a55Romain Guy 313ee916f14cbd1fe1422c063ce2ef7b185e2bc5c6fRomain GuySkiaSweepGradientShader::~SkiaSweepGradientShader() { 314ee916f14cbd1fe1422c063ce2ef7b185e2bc5c6fRomain Guy delete[] mColors; 315ee916f14cbd1fe1422c063ce2ef7b185e2bc5c6fRomain Guy delete[] mPositions; 316ee916f14cbd1fe1422c063ce2ef7b185e2bc5c6fRomain Guy} 317ee916f14cbd1fe1422c063ce2ef7b185e2bc5c6fRomain Guy 31824c00216687ac87fe531dc4d4168ac0c0ca04ea6Romain GuySkiaShader* SkiaSweepGradientShader::copy() { 31924c00216687ac87fe531dc4d4168ac0c0ca04ea6Romain Guy SkiaSweepGradientShader* copy = new SkiaSweepGradientShader(); 32024c00216687ac87fe531dc4d4168ac0c0ca04ea6Romain Guy copy->copyFrom(*this); 32143ccf4663c822ddd435b7683cc05221f6169c6c3Romain Guy copy->mColors = new uint32_t[mCount]; 32243ccf4663c822ddd435b7683cc05221f6169c6c3Romain Guy memcpy(copy->mColors, mColors, sizeof(uint32_t) * mCount); 32343ccf4663c822ddd435b7683cc05221f6169c6c3Romain Guy copy->mPositions = new float[mCount]; 32443ccf4663c822ddd435b7683cc05221f6169c6c3Romain Guy memcpy(copy->mPositions, mPositions, sizeof(float) * mCount); 32524c00216687ac87fe531dc4d4168ac0c0ca04ea6Romain Guy copy->mCount = mCount; 32624c00216687ac87fe531dc4d4168ac0c0ca04ea6Romain Guy return copy; 32724c00216687ac87fe531dc4d4168ac0c0ca04ea6Romain Guy} 32824c00216687ac87fe531dc4d4168ac0c0ca04ea6Romain Guy 329ee916f14cbd1fe1422c063ce2ef7b185e2bc5c6fRomain Guyvoid SkiaSweepGradientShader::describe(ProgramDescription& description, 330ee916f14cbd1fe1422c063ce2ef7b185e2bc5c6fRomain Guy const Extensions& extensions) { 331ee916f14cbd1fe1422c063ce2ef7b185e2bc5c6fRomain Guy description.hasGradient = true; 332ee916f14cbd1fe1422c063ce2ef7b185e2bc5c6fRomain Guy description.gradientType = ProgramDescription::kGradientSweep; 333ee916f14cbd1fe1422c063ce2ef7b185e2bc5c6fRomain Guy} 334ee916f14cbd1fe1422c063ce2ef7b185e2bc5c6fRomain Guy 335ee916f14cbd1fe1422c063ce2ef7b185e2bc5c6fRomain Guyvoid SkiaSweepGradientShader::setupProgram(Program* program, const mat4& modelView, 336ee916f14cbd1fe1422c063ce2ef7b185e2bc5c6fRomain Guy const Snapshot& snapshot, GLuint* textureUnit) { 337ee916f14cbd1fe1422c063ce2ef7b185e2bc5c6fRomain Guy GLuint textureSlot = (*textureUnit)++; 338ee916f14cbd1fe1422c063ce2ef7b185e2bc5c6fRomain Guy glActiveTexture(gTextureUnitsMap[textureSlot]); 339ee916f14cbd1fe1422c063ce2ef7b185e2bc5c6fRomain Guy 3406203f6c8147069976342be8f42add797a50f9557Romain Guy Texture* texture = mGradientCache->get(mColors, mPositions, mCount); 341ee916f14cbd1fe1422c063ce2ef7b185e2bc5c6fRomain Guy 34214830948d02f768c41b97b7a8d15e1b3cab78267Romain Guy mat4 screenSpace; 34314830948d02f768c41b97b7a8d15e1b3cab78267Romain Guy computeScreenSpaceMatrix(screenSpace, modelView); 344ee916f14cbd1fe1422c063ce2ef7b185e2bc5c6fRomain Guy 345ee916f14cbd1fe1422c063ce2ef7b185e2bc5c6fRomain Guy // Uniforms 34601d065795794fa56be660d6346e4830eb7e90a41Romain Guy bindTexture(texture, gTileModes[mTileX], gTileModes[mTileY]); 347ee916f14cbd1fe1422c063ce2ef7b185e2bc5c6fRomain Guy glUniform1i(program->getUniform("gradientSampler"), textureSlot); 348ee916f14cbd1fe1422c063ce2ef7b185e2bc5c6fRomain Guy glUniformMatrix4fv(program->getUniform("screenSpace"), 1, GL_FALSE, &screenSpace.data[0]); 349ee916f14cbd1fe1422c063ce2ef7b185e2bc5c6fRomain Guy} 350ee916f14cbd1fe1422c063ce2ef7b185e2bc5c6fRomain Guy 351ee916f14cbd1fe1422c063ce2ef7b185e2bc5c6fRomain Guyvoid SkiaSweepGradientShader::updateTransforms(Program* program, const mat4& modelView, 352ee916f14cbd1fe1422c063ce2ef7b185e2bc5c6fRomain Guy const Snapshot& snapshot) { 35314830948d02f768c41b97b7a8d15e1b3cab78267Romain Guy mat4 screenSpace; 35414830948d02f768c41b97b7a8d15e1b3cab78267Romain Guy computeScreenSpaceMatrix(screenSpace, modelView); 355ee916f14cbd1fe1422c063ce2ef7b185e2bc5c6fRomain Guy glUniformMatrix4fv(program->getUniform("screenSpace"), 1, GL_FALSE, &screenSpace.data[0]); 356ee916f14cbd1fe1422c063ce2ef7b185e2bc5c6fRomain Guy} 357ee916f14cbd1fe1422c063ce2ef7b185e2bc5c6fRomain Guy 358ee916f14cbd1fe1422c063ce2ef7b185e2bc5c6fRomain Guy/////////////////////////////////////////////////////////////////////////////// 35906f96e2652e4855b6520ad9dd70583677605b79aRomain Guy// Compose shader 36006f96e2652e4855b6520ad9dd70583677605b79aRomain Guy/////////////////////////////////////////////////////////////////////////////// 36106f96e2652e4855b6520ad9dd70583677605b79aRomain Guy 36206f96e2652e4855b6520ad9dd70583677605b79aRomain GuySkiaComposeShader::SkiaComposeShader(SkiaShader* first, SkiaShader* second, 36306f96e2652e4855b6520ad9dd70583677605b79aRomain Guy SkXfermode::Mode mode, SkShader* key): 36406f96e2652e4855b6520ad9dd70583677605b79aRomain Guy SkiaShader(kCompose, key, SkShader::kClamp_TileMode, SkShader::kClamp_TileMode, 36543ccf4663c822ddd435b7683cc05221f6169c6c3Romain Guy NULL, first->blend() || second->blend()), 36643ccf4663c822ddd435b7683cc05221f6169c6c3Romain Guy mFirst(first), mSecond(second), mMode(mode), mCleanup(false) { 36743ccf4663c822ddd435b7683cc05221f6169c6c3Romain Guy} 36843ccf4663c822ddd435b7683cc05221f6169c6c3Romain Guy 36943ccf4663c822ddd435b7683cc05221f6169c6c3Romain GuySkiaComposeShader::~SkiaComposeShader() { 37043ccf4663c822ddd435b7683cc05221f6169c6c3Romain Guy if (mCleanup) { 37143ccf4663c822ddd435b7683cc05221f6169c6c3Romain Guy delete mFirst; 37243ccf4663c822ddd435b7683cc05221f6169c6c3Romain Guy delete mSecond; 37343ccf4663c822ddd435b7683cc05221f6169c6c3Romain Guy } 37406f96e2652e4855b6520ad9dd70583677605b79aRomain Guy} 37506f96e2652e4855b6520ad9dd70583677605b79aRomain Guy 37624c00216687ac87fe531dc4d4168ac0c0ca04ea6Romain GuySkiaShader* SkiaComposeShader::copy() { 37724c00216687ac87fe531dc4d4168ac0c0ca04ea6Romain Guy SkiaComposeShader* copy = new SkiaComposeShader(); 37824c00216687ac87fe531dc4d4168ac0c0ca04ea6Romain Guy copy->copyFrom(*this); 37943ccf4663c822ddd435b7683cc05221f6169c6c3Romain Guy copy->mFirst = mFirst->copy(); 38043ccf4663c822ddd435b7683cc05221f6169c6c3Romain Guy copy->mSecond = mSecond->copy(); 38124c00216687ac87fe531dc4d4168ac0c0ca04ea6Romain Guy copy->mMode = mMode; 38243ccf4663c822ddd435b7683cc05221f6169c6c3Romain Guy copy->cleanup(); 38324c00216687ac87fe531dc4d4168ac0c0ca04ea6Romain Guy return copy; 38424c00216687ac87fe531dc4d4168ac0c0ca04ea6Romain Guy} 38524c00216687ac87fe531dc4d4168ac0c0ca04ea6Romain Guy 38606f96e2652e4855b6520ad9dd70583677605b79aRomain Guyvoid SkiaComposeShader::set(TextureCache* textureCache, GradientCache* gradientCache) { 38706f96e2652e4855b6520ad9dd70583677605b79aRomain Guy SkiaShader::set(textureCache, gradientCache); 38806f96e2652e4855b6520ad9dd70583677605b79aRomain Guy mFirst->set(textureCache, gradientCache); 38906f96e2652e4855b6520ad9dd70583677605b79aRomain Guy mSecond->set(textureCache, gradientCache); 39006f96e2652e4855b6520ad9dd70583677605b79aRomain Guy} 39106f96e2652e4855b6520ad9dd70583677605b79aRomain Guy 39206f96e2652e4855b6520ad9dd70583677605b79aRomain Guyvoid SkiaComposeShader::describe(ProgramDescription& description, const Extensions& extensions) { 39306f96e2652e4855b6520ad9dd70583677605b79aRomain Guy mFirst->describe(description, extensions); 39406f96e2652e4855b6520ad9dd70583677605b79aRomain Guy mSecond->describe(description, extensions); 39506f96e2652e4855b6520ad9dd70583677605b79aRomain Guy if (mFirst->type() == kBitmap) { 39606f96e2652e4855b6520ad9dd70583677605b79aRomain Guy description.isBitmapFirst = true; 39706f96e2652e4855b6520ad9dd70583677605b79aRomain Guy } 39806f96e2652e4855b6520ad9dd70583677605b79aRomain Guy description.shadersMode = mMode; 39906f96e2652e4855b6520ad9dd70583677605b79aRomain Guy} 40006f96e2652e4855b6520ad9dd70583677605b79aRomain Guy 40106f96e2652e4855b6520ad9dd70583677605b79aRomain Guyvoid SkiaComposeShader::setupProgram(Program* program, const mat4& modelView, 40206f96e2652e4855b6520ad9dd70583677605b79aRomain Guy const Snapshot& snapshot, GLuint* textureUnit) { 40306f96e2652e4855b6520ad9dd70583677605b79aRomain Guy mFirst->setupProgram(program, modelView, snapshot, textureUnit); 40406f96e2652e4855b6520ad9dd70583677605b79aRomain Guy mSecond->setupProgram(program, modelView, snapshot, textureUnit); 40506f96e2652e4855b6520ad9dd70583677605b79aRomain Guy} 40606f96e2652e4855b6520ad9dd70583677605b79aRomain Guy 40706f96e2652e4855b6520ad9dd70583677605b79aRomain Guy}; // namespace uirenderer 40806f96e2652e4855b6520ad9dd70583677605b79aRomain Guy}; // namespace android 409