Mathias Agopian | 3f84483 | 2013-08-07 21:24:32 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2013 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | #define ATRACE_TAG ATRACE_TAG_GRAPHICS |
| 18 | |
| 19 | #include <GLES2/gl2.h> |
Mathias Agopian | 458197d | 2013-08-15 14:56:51 -0700 | [diff] [blame] | 20 | #include <GLES2/gl2ext.h> |
Mathias Agopian | 3f84483 | 2013-08-07 21:24:32 -0700 | [diff] [blame] | 21 | |
Dan Stoza | c187900 | 2014-05-22 15:59:05 -0700 | [diff] [blame^] | 22 | #include <ui/Rect.h> |
| 23 | |
Mathias Agopian | 3f84483 | 2013-08-07 21:24:32 -0700 | [diff] [blame] | 24 | #include <utils/String8.h> |
| 25 | #include <utils/Trace.h> |
| 26 | |
| 27 | #include <cutils/compiler.h> |
| 28 | |
| 29 | #include "GLES20RenderEngine.h" |
Mathias Agopian | 3f84483 | 2013-08-07 21:24:32 -0700 | [diff] [blame] | 30 | #include "Program.h" |
| 31 | #include "ProgramCache.h" |
| 32 | #include "Description.h" |
| 33 | #include "Mesh.h" |
Mathias Agopian | 49457ac | 2013-08-14 18:20:17 -0700 | [diff] [blame] | 34 | #include "Texture.h" |
Mathias Agopian | 3f84483 | 2013-08-07 21:24:32 -0700 | [diff] [blame] | 35 | |
| 36 | // --------------------------------------------------------------------------- |
| 37 | namespace android { |
| 38 | // --------------------------------------------------------------------------- |
| 39 | |
Mathias Agopian | ff2ed70 | 2013-09-01 21:36:12 -0700 | [diff] [blame] | 40 | GLES20RenderEngine::GLES20RenderEngine() : |
| 41 | mVpWidth(0), mVpHeight(0) { |
Mathias Agopian | 3f84483 | 2013-08-07 21:24:32 -0700 | [diff] [blame] | 42 | |
| 43 | glGetIntegerv(GL_MAX_TEXTURE_SIZE, &mMaxTextureSize); |
| 44 | glGetIntegerv(GL_MAX_VIEWPORT_DIMS, mMaxViewportDims); |
| 45 | |
| 46 | glPixelStorei(GL_UNPACK_ALIGNMENT, 4); |
| 47 | glPixelStorei(GL_PACK_ALIGNMENT, 4); |
| 48 | |
| 49 | struct pack565 { |
| 50 | inline uint16_t operator() (int r, int g, int b) const { |
| 51 | return (r<<11)|(g<<5)|b; |
| 52 | } |
| 53 | } pack565; |
| 54 | |
Andy McFadden | c6f2169 | 2013-10-11 11:16:03 -0700 | [diff] [blame] | 55 | const uint16_t protTexData[] = { 0 }; |
Mathias Agopian | 3f84483 | 2013-08-07 21:24:32 -0700 | [diff] [blame] | 56 | glGenTextures(1, &mProtectedTexName); |
| 57 | glBindTexture(GL_TEXTURE_2D, mProtectedTexName); |
| 58 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); |
| 59 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); |
| 60 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT); |
| 61 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT); |
| 62 | glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, 1, 1, 0, |
| 63 | GL_RGB, GL_UNSIGNED_SHORT_5_6_5, protTexData); |
Mathias Agopian | ff2ed70 | 2013-09-01 21:36:12 -0700 | [diff] [blame] | 64 | |
| 65 | //mColorBlindnessCorrection = M; |
Mathias Agopian | 3f84483 | 2013-08-07 21:24:32 -0700 | [diff] [blame] | 66 | } |
| 67 | |
| 68 | GLES20RenderEngine::~GLES20RenderEngine() { |
| 69 | } |
| 70 | |
| 71 | |
| 72 | size_t GLES20RenderEngine::getMaxTextureSize() const { |
| 73 | return mMaxTextureSize; |
| 74 | } |
| 75 | |
| 76 | size_t GLES20RenderEngine::getMaxViewportDims() const { |
| 77 | return |
| 78 | mMaxViewportDims[0] < mMaxViewportDims[1] ? |
| 79 | mMaxViewportDims[0] : mMaxViewportDims[1]; |
| 80 | } |
| 81 | |
| 82 | void GLES20RenderEngine::setViewportAndProjection( |
Dan Stoza | c187900 | 2014-05-22 15:59:05 -0700 | [diff] [blame^] | 83 | size_t vpw, size_t vph, Rect sourceCrop, size_t hwh, bool yswap) { |
| 84 | |
| 85 | size_t l = sourceCrop.left; |
| 86 | size_t r = sourceCrop.right; |
| 87 | |
| 88 | // In GL, (0, 0) is the bottom-left corner, so flip y coordinates |
| 89 | size_t t = hwh - sourceCrop.top; |
| 90 | size_t b = hwh - sourceCrop.bottom; |
| 91 | |
Mathias Agopian | a8c386f | 2013-08-26 20:42:07 -0700 | [diff] [blame] | 92 | mat4 m; |
Dan Stoza | c187900 | 2014-05-22 15:59:05 -0700 | [diff] [blame^] | 93 | if (yswap) { |
| 94 | m = mat4::ortho(l, r, t, b, 0, 1); |
| 95 | } else { |
| 96 | m = mat4::ortho(l, r, b, t, 0, 1); |
| 97 | } |
Mathias Agopian | 3f84483 | 2013-08-07 21:24:32 -0700 | [diff] [blame] | 98 | |
| 99 | glViewport(0, 0, vpw, vph); |
| 100 | mState.setProjectionMatrix(m); |
Mathias Agopian | ff2ed70 | 2013-09-01 21:36:12 -0700 | [diff] [blame] | 101 | mVpWidth = vpw; |
| 102 | mVpHeight = vph; |
Mathias Agopian | 3f84483 | 2013-08-07 21:24:32 -0700 | [diff] [blame] | 103 | } |
| 104 | |
| 105 | void GLES20RenderEngine::setupLayerBlending( |
| 106 | bool premultipliedAlpha, bool opaque, int alpha) { |
| 107 | |
| 108 | mState.setPremultipliedAlpha(premultipliedAlpha); |
| 109 | mState.setOpaque(opaque); |
| 110 | mState.setPlaneAlpha(alpha / 255.0f); |
| 111 | |
| 112 | if (alpha < 0xFF || !opaque) { |
| 113 | glEnable(GL_BLEND); |
| 114 | glBlendFunc(premultipliedAlpha ? GL_ONE : GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); |
| 115 | } else { |
| 116 | glDisable(GL_BLEND); |
| 117 | } |
| 118 | } |
| 119 | |
| 120 | void GLES20RenderEngine::setupDimLayerBlending(int alpha) { |
Mathias Agopian | bcab7b1 | 2013-08-23 16:12:34 -0700 | [diff] [blame] | 121 | mState.setPlaneAlpha(1.0f); |
| 122 | mState.setPremultipliedAlpha(true); |
| 123 | mState.setOpaque(false); |
| 124 | mState.setColor(0, 0, 0, alpha/255.0f); |
| 125 | mState.disableTexture(); |
Mathias Agopian | 3f84483 | 2013-08-07 21:24:32 -0700 | [diff] [blame] | 126 | |
| 127 | if (alpha == 0xFF) { |
| 128 | glDisable(GL_BLEND); |
| 129 | } else { |
| 130 | glEnable(GL_BLEND); |
| 131 | glBlendFunc(GL_ONE, GL_ONE_MINUS_SRC_ALPHA); |
| 132 | } |
Mathias Agopian | 3f84483 | 2013-08-07 21:24:32 -0700 | [diff] [blame] | 133 | } |
| 134 | |
Mathias Agopian | 49457ac | 2013-08-14 18:20:17 -0700 | [diff] [blame] | 135 | void GLES20RenderEngine::setupLayerTexturing(const Texture& texture) { |
| 136 | GLuint target = texture.getTextureTarget(); |
| 137 | glBindTexture(target, texture.getTextureName()); |
Mathias Agopian | 3f84483 | 2013-08-07 21:24:32 -0700 | [diff] [blame] | 138 | GLenum filter = GL_NEAREST; |
Mathias Agopian | 49457ac | 2013-08-14 18:20:17 -0700 | [diff] [blame] | 139 | if (texture.getFiltering()) { |
Mathias Agopian | 3f84483 | 2013-08-07 21:24:32 -0700 | [diff] [blame] | 140 | filter = GL_LINEAR; |
| 141 | } |
Mathias Agopian | 49457ac | 2013-08-14 18:20:17 -0700 | [diff] [blame] | 142 | glTexParameteri(target, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); |
| 143 | glTexParameteri(target, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); |
| 144 | glTexParameteri(target, GL_TEXTURE_MAG_FILTER, filter); |
| 145 | glTexParameteri(target, GL_TEXTURE_MIN_FILTER, filter); |
Mathias Agopian | 3f84483 | 2013-08-07 21:24:32 -0700 | [diff] [blame] | 146 | |
Mathias Agopian | 49457ac | 2013-08-14 18:20:17 -0700 | [diff] [blame] | 147 | mState.setTexture(texture); |
Mathias Agopian | 3f84483 | 2013-08-07 21:24:32 -0700 | [diff] [blame] | 148 | } |
| 149 | |
| 150 | void GLES20RenderEngine::setupLayerBlackedOut() { |
Mathias Agopian | 3f84483 | 2013-08-07 21:24:32 -0700 | [diff] [blame] | 151 | glBindTexture(GL_TEXTURE_2D, mProtectedTexName); |
Mathias Agopian | 49457ac | 2013-08-14 18:20:17 -0700 | [diff] [blame] | 152 | Texture texture(Texture::TEXTURE_2D, mProtectedTexName); |
| 153 | texture.setDimensions(1, 1); // FIXME: we should get that from somewhere |
| 154 | mState.setTexture(texture); |
Mathias Agopian | 3f84483 | 2013-08-07 21:24:32 -0700 | [diff] [blame] | 155 | } |
| 156 | |
| 157 | void GLES20RenderEngine::disableTexturing() { |
| 158 | mState.disableTexture(); |
| 159 | } |
| 160 | |
| 161 | void GLES20RenderEngine::disableBlending() { |
| 162 | glDisable(GL_BLEND); |
| 163 | } |
| 164 | |
Mathias Agopian | 458197d | 2013-08-15 14:56:51 -0700 | [diff] [blame] | 165 | |
| 166 | void GLES20RenderEngine::bindImageAsFramebuffer(EGLImageKHR image, |
| 167 | uint32_t* texName, uint32_t* fbName, uint32_t* status) { |
| 168 | GLuint tname, name; |
| 169 | // turn our EGLImage into a texture |
| 170 | glGenTextures(1, &tname); |
| 171 | glBindTexture(GL_TEXTURE_2D, tname); |
| 172 | glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, (GLeglImageOES)image); |
| 173 | |
| 174 | // create a Framebuffer Object to render into |
| 175 | glGenFramebuffers(1, &name); |
| 176 | glBindFramebuffer(GL_FRAMEBUFFER, name); |
Mathias Agopian | ff2ed70 | 2013-09-01 21:36:12 -0700 | [diff] [blame] | 177 | glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, tname, 0); |
Mathias Agopian | 458197d | 2013-08-15 14:56:51 -0700 | [diff] [blame] | 178 | |
| 179 | *status = glCheckFramebufferStatus(GL_FRAMEBUFFER); |
| 180 | *texName = tname; |
| 181 | *fbName = name; |
| 182 | } |
| 183 | |
| 184 | void GLES20RenderEngine::unbindFramebuffer(uint32_t texName, uint32_t fbName) { |
| 185 | glBindFramebuffer(GL_FRAMEBUFFER, 0); |
| 186 | glDeleteFramebuffers(1, &fbName); |
| 187 | glDeleteTextures(1, &texName); |
| 188 | } |
| 189 | |
Mathias Agopian | 19733a3 | 2013-08-28 18:13:56 -0700 | [diff] [blame] | 190 | void GLES20RenderEngine::setupFillWithColor(float r, float g, float b, float a) { |
| 191 | mState.setPlaneAlpha(1.0f); |
| 192 | mState.setPremultipliedAlpha(true); |
| 193 | mState.setOpaque(false); |
Mathias Agopian | 3f84483 | 2013-08-07 21:24:32 -0700 | [diff] [blame] | 194 | mState.setColor(r, g, b, a); |
Mathias Agopian | 19733a3 | 2013-08-28 18:13:56 -0700 | [diff] [blame] | 195 | mState.disableTexture(); |
Mathias Agopian | 3f84483 | 2013-08-07 21:24:32 -0700 | [diff] [blame] | 196 | glDisable(GL_BLEND); |
Mathias Agopian | 3f84483 | 2013-08-07 21:24:32 -0700 | [diff] [blame] | 197 | } |
| 198 | |
| 199 | void GLES20RenderEngine::drawMesh(const Mesh& mesh) { |
| 200 | |
| 201 | ProgramCache::getInstance().useProgram(mState); |
| 202 | |
| 203 | if (mesh.getTexCoordsSize()) { |
| 204 | glEnableVertexAttribArray(Program::texCoords); |
| 205 | glVertexAttribPointer(Program::texCoords, |
| 206 | mesh.getTexCoordsSize(), |
| 207 | GL_FLOAT, GL_FALSE, |
| 208 | mesh.getByteStride(), |
| 209 | mesh.getTexCoords()); |
| 210 | } |
| 211 | |
| 212 | glVertexAttribPointer(Program::position, |
| 213 | mesh.getVertexSize(), |
| 214 | GL_FLOAT, GL_FALSE, |
| 215 | mesh.getByteStride(), |
Mathias Agopian | 5cdc899 | 2013-08-13 20:51:23 -0700 | [diff] [blame] | 216 | mesh.getPositions()); |
Mathias Agopian | 3f84483 | 2013-08-07 21:24:32 -0700 | [diff] [blame] | 217 | |
| 218 | glDrawArrays(mesh.getPrimitive(), 0, mesh.getVertexCount()); |
| 219 | |
| 220 | if (mesh.getTexCoordsSize()) { |
| 221 | glDisableVertexAttribArray(Program::texCoords); |
| 222 | } |
| 223 | } |
| 224 | |
Mathias Agopian | ff2ed70 | 2013-09-01 21:36:12 -0700 | [diff] [blame] | 225 | void GLES20RenderEngine::beginGroup(const mat4& colorTransform) { |
| 226 | |
| 227 | GLuint tname, name; |
| 228 | // create the texture |
| 229 | glGenTextures(1, &tname); |
| 230 | glBindTexture(GL_TEXTURE_2D, tname); |
| 231 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); |
| 232 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); |
| 233 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); |
| 234 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); |
| 235 | glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, mVpWidth, mVpHeight, 0, GL_RGBA, GL_UNSIGNED_BYTE, 0); |
| 236 | |
| 237 | // create a Framebuffer Object to render into |
| 238 | glGenFramebuffers(1, &name); |
| 239 | glBindFramebuffer(GL_FRAMEBUFFER, name); |
| 240 | glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, tname, 0); |
| 241 | |
| 242 | Group group; |
| 243 | group.texture = tname; |
| 244 | group.fbo = name; |
| 245 | group.width = mVpWidth; |
| 246 | group.height = mVpHeight; |
| 247 | group.colorTransform = colorTransform; |
| 248 | |
| 249 | mGroupStack.push(group); |
| 250 | } |
| 251 | |
| 252 | void GLES20RenderEngine::endGroup() { |
| 253 | |
| 254 | const Group group(mGroupStack.top()); |
| 255 | mGroupStack.pop(); |
| 256 | |
| 257 | // activate the previous render target |
| 258 | GLuint fbo = 0; |
| 259 | if (!mGroupStack.isEmpty()) { |
| 260 | fbo = mGroupStack.top().fbo; |
| 261 | } |
| 262 | glBindFramebuffer(GL_FRAMEBUFFER, fbo); |
| 263 | |
| 264 | // set our state |
| 265 | Texture texture(Texture::TEXTURE_2D, group.texture); |
| 266 | texture.setDimensions(group.width, group.height); |
| 267 | glBindTexture(GL_TEXTURE_2D, group.texture); |
| 268 | |
| 269 | mState.setPlaneAlpha(1.0f); |
| 270 | mState.setPremultipliedAlpha(true); |
| 271 | mState.setOpaque(false); |
| 272 | mState.setTexture(texture); |
| 273 | mState.setColorMatrix(group.colorTransform); |
| 274 | glDisable(GL_BLEND); |
| 275 | |
| 276 | Mesh mesh(Mesh::TRIANGLE_FAN, 4, 2, 2); |
| 277 | Mesh::VertexArray<vec2> position(mesh.getPositionArray<vec2>()); |
| 278 | Mesh::VertexArray<vec2> texCoord(mesh.getTexCoordArray<vec2>()); |
| 279 | position[0] = vec2(0, 0); |
| 280 | position[1] = vec2(group.width, 0); |
| 281 | position[2] = vec2(group.width, group.height); |
| 282 | position[3] = vec2(0, group.height); |
| 283 | texCoord[0] = vec2(0, 0); |
| 284 | texCoord[1] = vec2(1, 0); |
| 285 | texCoord[2] = vec2(1, 1); |
| 286 | texCoord[3] = vec2(0, 1); |
| 287 | drawMesh(mesh); |
| 288 | |
| 289 | // reset color matrix |
| 290 | mState.setColorMatrix(mat4()); |
| 291 | |
| 292 | // free our fbo and texture |
| 293 | glDeleteFramebuffers(1, &group.fbo); |
| 294 | glDeleteTextures(1, &group.texture); |
| 295 | } |
| 296 | |
Mathias Agopian | 3f84483 | 2013-08-07 21:24:32 -0700 | [diff] [blame] | 297 | void GLES20RenderEngine::dump(String8& result) { |
Mathias Agopian | 458197d | 2013-08-15 14:56:51 -0700 | [diff] [blame] | 298 | RenderEngine::dump(result); |
Mathias Agopian | 3f84483 | 2013-08-07 21:24:32 -0700 | [diff] [blame] | 299 | } |
| 300 | |
| 301 | // --------------------------------------------------------------------------- |
| 302 | }; // namespace android |
| 303 | // --------------------------------------------------------------------------- |
Mathias Agopian | 458197d | 2013-08-15 14:56:51 -0700 | [diff] [blame] | 304 | |
| 305 | #if defined(__gl_h_) |
| 306 | #error "don't include gl/gl.h in this file" |
| 307 | #endif |