Texture.h revision d21b6e1fe337b35f62cf2028e9bd0637fd009a75
1ce0537b80087a6225273040a987414b1dd081aa0Romain Guy/* 2ce0537b80087a6225273040a987414b1dd081aa0Romain Guy * Copyright (C) 2010 The Android Open Source Project 3ce0537b80087a6225273040a987414b1dd081aa0Romain Guy * 4ce0537b80087a6225273040a987414b1dd081aa0Romain Guy * Licensed under the Apache License, Version 2.0 (the "License"); 5ce0537b80087a6225273040a987414b1dd081aa0Romain Guy * you may not use this file except in compliance with the License. 6ce0537b80087a6225273040a987414b1dd081aa0Romain Guy * You may obtain a copy of the License at 7ce0537b80087a6225273040a987414b1dd081aa0Romain Guy * 8ce0537b80087a6225273040a987414b1dd081aa0Romain Guy * http://www.apache.org/licenses/LICENSE-2.0 9ce0537b80087a6225273040a987414b1dd081aa0Romain Guy * 10ce0537b80087a6225273040a987414b1dd081aa0Romain Guy * Unless required by applicable law or agreed to in writing, software 11ce0537b80087a6225273040a987414b1dd081aa0Romain Guy * distributed under the License is distributed on an "AS IS" BASIS, 12ce0537b80087a6225273040a987414b1dd081aa0Romain Guy * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13ce0537b80087a6225273040a987414b1dd081aa0Romain Guy * See the License for the specific language governing permissions and 14ce0537b80087a6225273040a987414b1dd081aa0Romain Guy * limitations under the License. 15ce0537b80087a6225273040a987414b1dd081aa0Romain Guy */ 16ce0537b80087a6225273040a987414b1dd081aa0Romain Guy 175b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#ifndef ANDROID_HWUI_TEXTURE_H 185b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#define ANDROID_HWUI_TEXTURE_H 19ce0537b80087a6225273040a987414b1dd081aa0Romain Guy 20ce0537b80087a6225273040a987414b1dd081aa0Romain Guy#include <GLES2/gl2.h> 21ce0537b80087a6225273040a987414b1dd081aa0Romain Guy 22ce0537b80087a6225273040a987414b1dd081aa0Romain Guynamespace android { 23ce0537b80087a6225273040a987414b1dd081aa0Romain Guynamespace uirenderer { 24ce0537b80087a6225273040a987414b1dd081aa0Romain Guy 25ce0537b80087a6225273040a987414b1dd081aa0Romain Guy/** 26ce0537b80087a6225273040a987414b1dd081aa0Romain Guy * Represents an OpenGL texture. 27ce0537b80087a6225273040a987414b1dd081aa0Romain Guy */ 28ce0537b80087a6225273040a987414b1dd081aa0Romain Guystruct Texture { 2922158e139a3d6c6a9787ca0de224e9368f643284Romain Guy Texture() { 3022158e139a3d6c6a9787ca0de224e9368f643284Romain Guy cleanup = false; 319aaa8269a3e7291aab84d01c3fc9c744d8f2d2f4Romain Guy bitmapSize = 0; 329ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy 338164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy wrapS = GL_CLAMP_TO_EDGE; 348164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy wrapT = GL_CLAMP_TO_EDGE; 359ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy 369ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy minFilter = GL_NEAREST; 379ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy magFilter = GL_NEAREST; 38e3c26851dc315b730ea0fe5ef35bb1db81f6d675Romain Guy 39e3c26851dc315b730ea0fe5ef35bb1db81f6d675Romain Guy firstFilter = true; 40e3c26851dc315b730ea0fe5ef35bb1db81f6d675Romain Guy firstWrap = true; 419ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy } 429ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy 43d21b6e1fe337b35f62cf2028e9bd0637fd009a75Romain Guy void setWrap(GLenum wrap, bool bindTexture = false, bool force = false, 44d21b6e1fe337b35f62cf2028e9bd0637fd009a75Romain Guy GLenum renderTarget = GL_TEXTURE_2D) { 45d21b6e1fe337b35f62cf2028e9bd0637fd009a75Romain Guy setWrapST(wrap, wrap, bindTexture, force, renderTarget); 46d21b6e1fe337b35f62cf2028e9bd0637fd009a75Romain Guy } 47d21b6e1fe337b35f62cf2028e9bd0637fd009a75Romain Guy 48d21b6e1fe337b35f62cf2028e9bd0637fd009a75Romain Guy void setWrapST(GLenum wrapS, GLenum wrapT, bool bindTexture = false, bool force = false, 49e3c26851dc315b730ea0fe5ef35bb1db81f6d675Romain Guy GLenum renderTarget = GL_TEXTURE_2D) { 50e3c26851dc315b730ea0fe5ef35bb1db81f6d675Romain Guy 51e3c26851dc315b730ea0fe5ef35bb1db81f6d675Romain Guy if (firstWrap || force || wrapS != this->wrapS || wrapT != this->wrapT) { 52e3c26851dc315b730ea0fe5ef35bb1db81f6d675Romain Guy firstWrap = true; 53e3c26851dc315b730ea0fe5ef35bb1db81f6d675Romain Guy 54e3c26851dc315b730ea0fe5ef35bb1db81f6d675Romain Guy this->wrapS = wrapS; 55e3c26851dc315b730ea0fe5ef35bb1db81f6d675Romain Guy this->wrapT = wrapT; 56e3c26851dc315b730ea0fe5ef35bb1db81f6d675Romain Guy 57e3c26851dc315b730ea0fe5ef35bb1db81f6d675Romain Guy if (bindTexture) { 58e3c26851dc315b730ea0fe5ef35bb1db81f6d675Romain Guy glBindTexture(renderTarget, id); 59e3c26851dc315b730ea0fe5ef35bb1db81f6d675Romain Guy } 60e3c26851dc315b730ea0fe5ef35bb1db81f6d675Romain Guy 61e3c26851dc315b730ea0fe5ef35bb1db81f6d675Romain Guy glTexParameteri(renderTarget, GL_TEXTURE_WRAP_S, wrapS); 62e3c26851dc315b730ea0fe5ef35bb1db81f6d675Romain Guy glTexParameteri(renderTarget, GL_TEXTURE_WRAP_T, wrapT); 63e3c26851dc315b730ea0fe5ef35bb1db81f6d675Romain Guy } 649ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy } 659ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy 66d21b6e1fe337b35f62cf2028e9bd0637fd009a75Romain Guy void setFilter(GLenum filter, bool bindTexture = false, bool force = false, 67d21b6e1fe337b35f62cf2028e9bd0637fd009a75Romain Guy GLenum renderTarget = GL_TEXTURE_2D) { 68d21b6e1fe337b35f62cf2028e9bd0637fd009a75Romain Guy setFilterMinMag(filter, filter, bindTexture, force, renderTarget); 69d21b6e1fe337b35f62cf2028e9bd0637fd009a75Romain Guy } 70d21b6e1fe337b35f62cf2028e9bd0637fd009a75Romain Guy 71d21b6e1fe337b35f62cf2028e9bd0637fd009a75Romain Guy void setFilterMinMag(GLenum min, GLenum mag, bool bindTexture = false, bool force = false, 72e3c26851dc315b730ea0fe5ef35bb1db81f6d675Romain Guy GLenum renderTarget = GL_TEXTURE_2D) { 73e3c26851dc315b730ea0fe5ef35bb1db81f6d675Romain Guy 74e3c26851dc315b730ea0fe5ef35bb1db81f6d675Romain Guy if (firstFilter || force || min != minFilter || mag != magFilter) { 75e3c26851dc315b730ea0fe5ef35bb1db81f6d675Romain Guy firstFilter = false; 76e3c26851dc315b730ea0fe5ef35bb1db81f6d675Romain Guy 77e3c26851dc315b730ea0fe5ef35bb1db81f6d675Romain Guy minFilter = min; 78e3c26851dc315b730ea0fe5ef35bb1db81f6d675Romain Guy magFilter = mag; 79e3c26851dc315b730ea0fe5ef35bb1db81f6d675Romain Guy 80e3c26851dc315b730ea0fe5ef35bb1db81f6d675Romain Guy if (bindTexture) { 81e3c26851dc315b730ea0fe5ef35bb1db81f6d675Romain Guy glBindTexture(renderTarget, id); 82e3c26851dc315b730ea0fe5ef35bb1db81f6d675Romain Guy } 83e3c26851dc315b730ea0fe5ef35bb1db81f6d675Romain Guy 84e3c26851dc315b730ea0fe5ef35bb1db81f6d675Romain Guy glTexParameteri(renderTarget, GL_TEXTURE_MIN_FILTER, min); 85e3c26851dc315b730ea0fe5ef35bb1db81f6d675Romain Guy glTexParameteri(renderTarget, GL_TEXTURE_MAG_FILTER, mag); 86e3c26851dc315b730ea0fe5ef35bb1db81f6d675Romain Guy } 8722158e139a3d6c6a9787ca0de224e9368f643284Romain Guy } 8822158e139a3d6c6a9787ca0de224e9368f643284Romain Guy 89ce0537b80087a6225273040a987414b1dd081aa0Romain Guy /** 90ce0537b80087a6225273040a987414b1dd081aa0Romain Guy * Name of the texture. 91ce0537b80087a6225273040a987414b1dd081aa0Romain Guy */ 92ce0537b80087a6225273040a987414b1dd081aa0Romain Guy GLuint id; 93ce0537b80087a6225273040a987414b1dd081aa0Romain Guy /** 94fe8809471a40cac8acc984adfa51c39e13e83947Romain Guy * Generation of the backing bitmap, 95fe8809471a40cac8acc984adfa51c39e13e83947Romain Guy */ 96fe8809471a40cac8acc984adfa51c39e13e83947Romain Guy uint32_t generation; 97fe8809471a40cac8acc984adfa51c39e13e83947Romain Guy /** 98ce0537b80087a6225273040a987414b1dd081aa0Romain Guy * Indicates whether the texture requires blending. 99ce0537b80087a6225273040a987414b1dd081aa0Romain Guy */ 100ce0537b80087a6225273040a987414b1dd081aa0Romain Guy bool blend; 101ce0537b80087a6225273040a987414b1dd081aa0Romain Guy /** 102ce0537b80087a6225273040a987414b1dd081aa0Romain Guy * Width of the backing bitmap. 103ce0537b80087a6225273040a987414b1dd081aa0Romain Guy */ 1047d139ba2c331f11e9b485753cc727a0ff202f2a4Romain Guy uint32_t width; 105ce0537b80087a6225273040a987414b1dd081aa0Romain Guy /** 106ce0537b80087a6225273040a987414b1dd081aa0Romain Guy * Height of the backing bitmap. 107ce0537b80087a6225273040a987414b1dd081aa0Romain Guy */ 1087d139ba2c331f11e9b485753cc727a0ff202f2a4Romain Guy uint32_t height; 10922158e139a3d6c6a9787ca0de224e9368f643284Romain Guy /** 11022158e139a3d6c6a9787ca0de224e9368f643284Romain Guy * Indicates whether this texture should be cleaned up after use. 11122158e139a3d6c6a9787ca0de224e9368f643284Romain Guy */ 11222158e139a3d6c6a9787ca0de224e9368f643284Romain Guy bool cleanup; 1139aaa8269a3e7291aab84d01c3fc9c744d8f2d2f4Romain Guy /** 1149aaa8269a3e7291aab84d01c3fc9c744d8f2d2f4Romain Guy * Optional, size of the original bitmap. 1159aaa8269a3e7291aab84d01c3fc9c744d8f2d2f4Romain Guy */ 1169aaa8269a3e7291aab84d01c3fc9c744d8f2d2f4Romain Guy uint32_t bitmapSize; 1178164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy 1188164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy /** 1198164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy * Last wrap modes set on this texture. Defaults to GL_CLAMP_TO_EDGE. 1208164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy */ 1218164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy GLenum wrapS; 1228164c2d338781c3a3c4a443941070dca5d88f2a7Romain Guy GLenum wrapT; 1239ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy 1249ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy /** 1259ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy * Last filters set on this texture. Defaults to GL_NEAREST. 1269ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy */ 1279ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy GLenum minFilter; 1289ace8f5e79e76893fe4ca9e4d10f6c4056330485Romain Guy GLenum magFilter; 129e3c26851dc315b730ea0fe5ef35bb1db81f6d675Romain Guy 130e3c26851dc315b730ea0fe5ef35bb1db81f6d675Romain Guyprivate: 131e3c26851dc315b730ea0fe5ef35bb1db81f6d675Romain Guy bool firstFilter; 132e3c26851dc315b730ea0fe5ef35bb1db81f6d675Romain Guy bool firstWrap; 133ce0537b80087a6225273040a987414b1dd081aa0Romain Guy}; // struct Texture 134ce0537b80087a6225273040a987414b1dd081aa0Romain Guy 13522158e139a3d6c6a9787ca0de224e9368f643284Romain Guyclass AutoTexture { 13622158e139a3d6c6a9787ca0de224e9368f643284Romain Guypublic: 13722158e139a3d6c6a9787ca0de224e9368f643284Romain Guy AutoTexture(const Texture* texture): mTexture(texture) { } 13822158e139a3d6c6a9787ca0de224e9368f643284Romain Guy ~AutoTexture() { 13922158e139a3d6c6a9787ca0de224e9368f643284Romain Guy if (mTexture && mTexture->cleanup) { 14022158e139a3d6c6a9787ca0de224e9368f643284Romain Guy glDeleteTextures(1, &mTexture->id); 14122158e139a3d6c6a9787ca0de224e9368f643284Romain Guy delete mTexture; 14222158e139a3d6c6a9787ca0de224e9368f643284Romain Guy } 14322158e139a3d6c6a9787ca0de224e9368f643284Romain Guy } 14422158e139a3d6c6a9787ca0de224e9368f643284Romain Guy 14522158e139a3d6c6a9787ca0de224e9368f643284Romain Guyprivate: 14622158e139a3d6c6a9787ca0de224e9368f643284Romain Guy const Texture* mTexture; 14722158e139a3d6c6a9787ca0de224e9368f643284Romain Guy}; // class AutoTexture 14822158e139a3d6c6a9787ca0de224e9368f643284Romain Guy 149ce0537b80087a6225273040a987414b1dd081aa0Romain Guy}; // namespace uirenderer 150ce0537b80087a6225273040a987414b1dd081aa0Romain Guy}; // namespace android 151ce0537b80087a6225273040a987414b1dd081aa0Romain Guy 1525b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy#endif // ANDROID_HWUI_TEXTURE_H 153