bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 1 | /* |
bsalomon@google.com | 1da0746 | 2011-03-10 14:51:57 +0000 | [diff] [blame] | 2 | Copyright 2011 Google Inc. |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 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 | #include "GrContext.h" |
| 18 | #include "GrTypes.h" |
| 19 | #include "GrTextureCache.h" |
| 20 | #include "GrTextStrike.h" |
| 21 | #include "GrMemory.h" |
| 22 | #include "GrPathIter.h" |
| 23 | #include "GrClipIterator.h" |
| 24 | #include "GrIndexBuffer.h" |
| 25 | #include "GrInOrderDrawBuffer.h" |
| 26 | #include "GrBufferAllocPool.h" |
| 27 | #include "GrPathRenderer.h" |
| 28 | |
| 29 | #define DEFER_TEXT_RENDERING 1 |
| 30 | |
| 31 | #define BATCH_RECT_TO_RECT (1 && !GR_STATIC_RECT_VB) |
| 32 | |
| 33 | static const size_t MAX_TEXTURE_CACHE_COUNT = 128; |
| 34 | static const size_t MAX_TEXTURE_CACHE_BYTES = 8 * 1024 * 1024; |
| 35 | |
| 36 | static const size_t DRAW_BUFFER_VBPOOL_BUFFER_SIZE = 1 << 18; |
| 37 | static const int DRAW_BUFFER_VBPOOL_PREALLOC_BUFFERS = 4; |
| 38 | |
| 39 | // We are currently only batching Text and drawRectToRect, both |
| 40 | // of which use the quad index buffer. |
| 41 | static const size_t DRAW_BUFFER_IBPOOL_BUFFER_SIZE = 0; |
| 42 | static const int DRAW_BUFFER_IBPOOL_PREALLOC_BUFFERS = 0; |
| 43 | |
| 44 | GrContext* GrContext::Create(GrGpu::Engine engine, |
| 45 | GrGpu::Platform3DContext context3D) { |
| 46 | GrContext* ctx = NULL; |
| 47 | GrGpu* fGpu = GrGpu::Create(engine, context3D); |
| 48 | if (NULL != fGpu) { |
| 49 | ctx = new GrContext(fGpu); |
| 50 | fGpu->unref(); |
| 51 | } |
| 52 | return ctx; |
| 53 | } |
| 54 | |
| 55 | GrContext* GrContext::CreateGLShaderContext() { |
| 56 | return GrContext::Create(GrGpu::kOpenGL_Shaders_Engine, NULL); |
| 57 | } |
| 58 | |
| 59 | GrContext::~GrContext() { |
bsalomon@google.com | 8fe7247 | 2011-03-30 21:26:44 +0000 | [diff] [blame^] | 60 | this->flush(); |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 61 | fGpu->unref(); |
| 62 | delete fTextureCache; |
| 63 | delete fFontCache; |
| 64 | delete fDrawBuffer; |
| 65 | delete fDrawBufferVBAllocPool; |
bsalomon@google.com | de6ac2d | 2011-02-25 21:50:42 +0000 | [diff] [blame] | 66 | delete fDrawBufferIBAllocPool; |
bsalomon@google.com | dfe75bc | 2011-03-25 12:31:16 +0000 | [diff] [blame] | 67 | GrSafeUnref(fCustomPathRenderer); |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 68 | } |
| 69 | |
bsalomon@google.com | 8fe7247 | 2011-03-30 21:26:44 +0000 | [diff] [blame^] | 70 | void GrContext::contextLost() { |
| 71 | delete fDrawBuffer; |
| 72 | fDrawBuffer = NULL; |
| 73 | delete fDrawBufferVBAllocPool; |
| 74 | fDrawBufferVBAllocPool = NULL; |
| 75 | delete fDrawBufferIBAllocPool; |
| 76 | fDrawBufferIBAllocPool = NULL; |
| 77 | |
| 78 | fTextureCache->removeAll(); |
| 79 | fFontCache->freeAll(); |
| 80 | fGpu->markContextDirty(); |
| 81 | |
| 82 | fGpu->abandonResources(); |
| 83 | |
| 84 | this->setupDrawBuffer(); |
| 85 | } |
| 86 | |
| 87 | void GrContext::resetContext() { |
| 88 | fGpu->markContextDirty(); |
| 89 | } |
| 90 | |
| 91 | void GrContext::freeGpuResources() { |
| 92 | this->flush(); |
| 93 | fTextureCache->removeAll(); |
| 94 | fFontCache->freeAll(); |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 95 | } |
| 96 | |
| 97 | GrTextureEntry* GrContext::findAndLockTexture(GrTextureKey* key, |
| 98 | const GrSamplerState& sampler) { |
| 99 | finalizeTextureKey(key, sampler); |
| 100 | return fTextureCache->findAndLock(*key); |
| 101 | } |
| 102 | |
| 103 | static void stretchImage(void* dst, |
| 104 | int dstW, |
| 105 | int dstH, |
| 106 | void* src, |
| 107 | int srcW, |
| 108 | int srcH, |
| 109 | int bpp) { |
| 110 | GrFixed dx = (srcW << 16) / dstW; |
| 111 | GrFixed dy = (srcH << 16) / dstH; |
| 112 | |
| 113 | GrFixed y = dy >> 1; |
| 114 | |
| 115 | int dstXLimit = dstW*bpp; |
| 116 | for (int j = 0; j < dstH; ++j) { |
| 117 | GrFixed x = dx >> 1; |
| 118 | void* srcRow = (uint8_t*)src + (y>>16)*srcW*bpp; |
| 119 | void* dstRow = (uint8_t*)dst + j*dstW*bpp; |
| 120 | for (int i = 0; i < dstXLimit; i += bpp) { |
| 121 | memcpy((uint8_t*) dstRow + i, |
| 122 | (uint8_t*) srcRow + (x>>16)*bpp, |
| 123 | bpp); |
| 124 | x += dx; |
| 125 | } |
| 126 | y += dy; |
| 127 | } |
| 128 | } |
| 129 | |
| 130 | GrTextureEntry* GrContext::createAndLockTexture(GrTextureKey* key, |
| 131 | const GrSamplerState& sampler, |
| 132 | const GrGpu::TextureDesc& desc, |
| 133 | void* srcData, size_t rowBytes) { |
| 134 | GrAssert(key->width() == desc.fWidth); |
| 135 | GrAssert(key->height() == desc.fHeight); |
| 136 | |
| 137 | #if GR_DUMP_TEXTURE_UPLOAD |
| 138 | GrPrintf("GrContext::createAndLockTexture [%d %d]\n", desc.fWidth, desc.fHeight); |
| 139 | #endif |
| 140 | |
| 141 | GrTextureEntry* entry = NULL; |
| 142 | bool special = finalizeTextureKey(key, sampler); |
| 143 | if (special) { |
| 144 | GrTextureEntry* clampEntry; |
| 145 | GrTextureKey clampKey(*key); |
| 146 | clampEntry = findAndLockTexture(&clampKey, GrSamplerState::ClampNoFilter()); |
| 147 | |
| 148 | if (NULL == clampEntry) { |
| 149 | clampEntry = createAndLockTexture(&clampKey, |
| 150 | GrSamplerState::ClampNoFilter(), |
| 151 | desc, srcData, rowBytes); |
| 152 | GrAssert(NULL != clampEntry); |
| 153 | if (NULL == clampEntry) { |
| 154 | return NULL; |
| 155 | } |
| 156 | } |
| 157 | GrGpu::TextureDesc rtDesc = desc; |
| 158 | rtDesc.fFlags |= GrGpu::kRenderTarget_TextureFlag | |
bsalomon@google.com | f6a7c11 | 2011-03-24 16:14:10 +0000 | [diff] [blame] | 159 | GrGpu::kNoStencil_TextureFlag; |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 160 | rtDesc.fWidth = GrNextPow2(GrMax<int>(desc.fWidth, |
| 161 | fGpu->minRenderTargetWidth())); |
| 162 | rtDesc.fHeight = GrNextPow2(GrMax<int>(desc.fHeight, |
| 163 | fGpu->minRenderTargetHeight())); |
| 164 | |
| 165 | GrTexture* texture = fGpu->createTexture(rtDesc, NULL, 0); |
| 166 | |
| 167 | if (NULL != texture) { |
| 168 | GrDrawTarget::AutoStateRestore asr(fGpu); |
| 169 | fGpu->setRenderTarget(texture->asRenderTarget()); |
| 170 | fGpu->setTexture(0, clampEntry->texture()); |
bsalomon@google.com | d302f14 | 2011-03-03 13:54:13 +0000 | [diff] [blame] | 171 | fGpu->disableStencil(); |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 172 | fGpu->setViewMatrix(GrMatrix::I()); |
| 173 | fGpu->setAlpha(0xff); |
| 174 | fGpu->setBlendFunc(kOne_BlendCoeff, kZero_BlendCoeff); |
| 175 | fGpu->disableState(GrDrawTarget::kDither_StateBit | |
| 176 | GrDrawTarget::kClip_StateBit | |
| 177 | GrDrawTarget::kAntialias_StateBit); |
| 178 | GrSamplerState stretchSampler(GrSamplerState::kClamp_WrapMode, |
| 179 | GrSamplerState::kClamp_WrapMode, |
| 180 | sampler.isFilter()); |
| 181 | fGpu->setSamplerState(0, stretchSampler); |
| 182 | |
| 183 | static const GrVertexLayout layout = |
| 184 | GrDrawTarget::StageTexCoordVertexLayoutBit(0,0); |
| 185 | GrDrawTarget::AutoReleaseGeometry arg(fGpu, layout, 4, 0); |
| 186 | |
| 187 | if (arg.succeeded()) { |
| 188 | GrPoint* verts = (GrPoint*) arg.vertices(); |
| 189 | verts[0].setIRectFan(0, 0, |
| 190 | texture->width(), |
| 191 | texture->height(), |
| 192 | 2*sizeof(GrPoint)); |
| 193 | verts[1].setIRectFan(0, 0, 1, 1, 2*sizeof(GrPoint)); |
| 194 | fGpu->drawNonIndexed(kTriangleFan_PrimitiveType, |
| 195 | 0, 4); |
| 196 | entry = fTextureCache->createAndLock(*key, texture); |
| 197 | } |
bsalomon@google.com | 1da0746 | 2011-03-10 14:51:57 +0000 | [diff] [blame] | 198 | texture->releaseRenderTarget(); |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 199 | } else { |
| 200 | // TODO: Our CPU stretch doesn't filter. But we create separate |
| 201 | // stretched textures when the sampler state is either filtered or |
| 202 | // not. Either implement filtered stretch blit on CPU or just create |
| 203 | // one when FBO case fails. |
| 204 | |
| 205 | rtDesc.fFlags = 0; |
| 206 | // no longer need to clamp at min RT size. |
| 207 | rtDesc.fWidth = GrNextPow2(desc.fWidth); |
| 208 | rtDesc.fHeight = GrNextPow2(desc.fHeight); |
| 209 | int bpp = GrTexture::BytesPerPixel(desc.fFormat); |
| 210 | GrAutoSMalloc<128*128*4> stretchedPixels(bpp * |
| 211 | rtDesc.fWidth * |
| 212 | rtDesc.fHeight); |
| 213 | stretchImage(stretchedPixels.get(), rtDesc.fWidth, rtDesc.fHeight, |
| 214 | srcData, desc.fWidth, desc.fHeight, bpp); |
| 215 | |
| 216 | size_t stretchedRowBytes = rtDesc.fWidth * bpp; |
| 217 | |
| 218 | GrTexture* texture = fGpu->createTexture(rtDesc, |
| 219 | stretchedPixels.get(), |
| 220 | stretchedRowBytes); |
| 221 | GrAssert(NULL != texture); |
| 222 | entry = fTextureCache->createAndLock(*key, texture); |
| 223 | } |
| 224 | fTextureCache->unlock(clampEntry); |
| 225 | |
| 226 | } else { |
| 227 | GrTexture* texture = fGpu->createTexture(desc, srcData, rowBytes); |
| 228 | if (NULL != texture) { |
| 229 | entry = fTextureCache->createAndLock(*key, texture); |
| 230 | } else { |
| 231 | entry = NULL; |
| 232 | } |
| 233 | } |
| 234 | return entry; |
| 235 | } |
| 236 | |
| 237 | void GrContext::unlockTexture(GrTextureEntry* entry) { |
| 238 | fTextureCache->unlock(entry); |
| 239 | } |
| 240 | |
| 241 | void GrContext::detachCachedTexture(GrTextureEntry* entry) { |
| 242 | fTextureCache->detach(entry); |
| 243 | } |
| 244 | |
| 245 | void GrContext::reattachAndUnlockCachedTexture(GrTextureEntry* entry) { |
| 246 | fTextureCache->reattachAndUnlock(entry); |
| 247 | } |
| 248 | |
| 249 | GrTexture* GrContext::createUncachedTexture(const GrGpu::TextureDesc& desc, |
| 250 | void* srcData, |
| 251 | size_t rowBytes) { |
| 252 | return fGpu->createTexture(desc, srcData, rowBytes); |
| 253 | } |
| 254 | |
| 255 | void GrContext::getTextureCacheLimits(int* maxTextures, |
| 256 | size_t* maxTextureBytes) const { |
| 257 | fTextureCache->getLimits(maxTextures, maxTextureBytes); |
| 258 | } |
| 259 | |
| 260 | void GrContext::setTextureCacheLimits(int maxTextures, size_t maxTextureBytes) { |
| 261 | fTextureCache->setLimits(maxTextures, maxTextureBytes); |
| 262 | } |
| 263 | |
| 264 | int GrContext::getMaxTextureDimension() { |
| 265 | return fGpu->maxTextureDimension(); |
| 266 | } |
| 267 | |
| 268 | /////////////////////////////////////////////////////////////////////////////// |
| 269 | |
| 270 | GrRenderTarget* GrContext::createPlatformRenderTarget( |
| 271 | intptr_t platformRenderTarget, |
| 272 | int stencilBits, |
| 273 | int width, int height) { |
| 274 | return fGpu->createPlatformRenderTarget(platformRenderTarget, stencilBits, |
| 275 | width, height); |
| 276 | } |
| 277 | |
| 278 | bool GrContext::supportsIndex8PixelConfig(const GrSamplerState& sampler, |
| 279 | int width, int height) { |
| 280 | if (!fGpu->supports8BitPalette()) { |
| 281 | return false; |
| 282 | } |
| 283 | |
| 284 | |
| 285 | bool isPow2 = GrIsPow2(width) && GrIsPow2(height); |
| 286 | |
| 287 | if (!isPow2) { |
| 288 | if (!fGpu->npotTextureSupport()) { |
| 289 | return false; |
| 290 | } |
| 291 | |
| 292 | bool tiled = sampler.getWrapX() != GrSamplerState::kClamp_WrapMode || |
| 293 | sampler.getWrapY() != GrSamplerState::kClamp_WrapMode; |
| 294 | if (tiled && !fGpu->npotTextureTileSupport()) { |
| 295 | return false; |
| 296 | } |
| 297 | } |
| 298 | return true; |
| 299 | } |
| 300 | |
| 301 | //////////////////////////////////////////////////////////////////////////////// |
| 302 | |
| 303 | void GrContext::setClip(const GrClip& clip) { |
| 304 | fGpu->setClip(clip); |
| 305 | fGpu->enableState(GrDrawTarget::kClip_StateBit); |
| 306 | } |
| 307 | |
| 308 | void GrContext::setClip(const GrIRect& rect) { |
| 309 | GrClip clip; |
bsalomon@google.com | d302f14 | 2011-03-03 13:54:13 +0000 | [diff] [blame] | 310 | clip.setFromIRect(rect); |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 311 | fGpu->setClip(clip); |
| 312 | } |
| 313 | |
| 314 | //////////////////////////////////////////////////////////////////////////////// |
| 315 | |
| 316 | void GrContext::eraseColor(GrColor color) { |
| 317 | fGpu->eraseColor(color); |
| 318 | } |
| 319 | |
| 320 | void GrContext::drawPaint(const GrPaint& paint) { |
| 321 | // set rect to be big enough to fill the space, but not super-huge, so we |
| 322 | // don't overflow fixed-point implementations |
bsalomon@google.com | d302f14 | 2011-03-03 13:54:13 +0000 | [diff] [blame] | 323 | GrRect r; |
| 324 | r.setLTRB(0, 0, |
| 325 | GrIntToScalar(getRenderTarget()->width()), |
| 326 | GrIntToScalar(getRenderTarget()->height())); |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 327 | GrMatrix inverse; |
| 328 | if (fGpu->getViewInverse(&inverse)) { |
| 329 | inverse.mapRect(&r); |
| 330 | } else { |
| 331 | GrPrintf("---- fGpu->getViewInverse failed\n"); |
| 332 | } |
| 333 | this->drawRect(paint, r); |
| 334 | } |
| 335 | |
| 336 | /* create a triangle strip that strokes the specified triangle. There are 8 |
| 337 | unique vertices, but we repreat the last 2 to close up. Alternatively we |
| 338 | could use an indices array, and then only send 8 verts, but not sure that |
| 339 | would be faster. |
| 340 | */ |
| 341 | static void setStrokeRectStrip(GrPoint verts[10], const GrRect& rect, |
| 342 | GrScalar width) { |
| 343 | const GrScalar rad = GrScalarHalf(width); |
| 344 | |
| 345 | verts[0].set(rect.fLeft + rad, rect.fTop + rad); |
| 346 | verts[1].set(rect.fLeft - rad, rect.fTop - rad); |
| 347 | verts[2].set(rect.fRight - rad, rect.fTop + rad); |
| 348 | verts[3].set(rect.fRight + rad, rect.fTop - rad); |
| 349 | verts[4].set(rect.fRight - rad, rect.fBottom - rad); |
| 350 | verts[5].set(rect.fRight + rad, rect.fBottom + rad); |
| 351 | verts[6].set(rect.fLeft + rad, rect.fBottom - rad); |
| 352 | verts[7].set(rect.fLeft - rad, rect.fBottom + rad); |
| 353 | verts[8] = verts[0]; |
| 354 | verts[9] = verts[1]; |
| 355 | } |
| 356 | |
| 357 | void GrContext::drawRect(const GrPaint& paint, |
| 358 | const GrRect& rect, |
| 359 | GrScalar width, |
| 360 | const GrMatrix* matrix) { |
| 361 | |
| 362 | bool textured = NULL != paint.getTexture(); |
| 363 | |
| 364 | GrDrawTarget* target = this->prepareToDraw(paint, kUnbuffered_DrawCategory); |
| 365 | |
| 366 | if (width >= 0) { |
| 367 | // TODO: consider making static vertex buffers for these cases. |
| 368 | // Hairline could be done by just adding closing vertex to |
| 369 | // unitSquareVertexBuffer() |
| 370 | GrVertexLayout layout = (textured) ? |
| 371 | GrDrawTarget::StagePosAsTexCoordVertexLayoutBit(0) : |
| 372 | 0; |
| 373 | static const int worstCaseVertCount = 10; |
| 374 | GrDrawTarget::AutoReleaseGeometry geo(target, layout, worstCaseVertCount, 0); |
| 375 | |
| 376 | if (!geo.succeeded()) { |
| 377 | return; |
| 378 | } |
| 379 | |
| 380 | GrPrimitiveType primType; |
| 381 | int vertCount; |
| 382 | GrPoint* vertex = geo.positions(); |
| 383 | |
| 384 | if (width > 0) { |
| 385 | vertCount = 10; |
| 386 | primType = kTriangleStrip_PrimitiveType; |
| 387 | setStrokeRectStrip(vertex, rect, width); |
| 388 | } else { |
| 389 | // hairline |
| 390 | vertCount = 5; |
| 391 | primType = kLineStrip_PrimitiveType; |
| 392 | vertex[0].set(rect.fLeft, rect.fTop); |
| 393 | vertex[1].set(rect.fRight, rect.fTop); |
| 394 | vertex[2].set(rect.fRight, rect.fBottom); |
| 395 | vertex[3].set(rect.fLeft, rect.fBottom); |
| 396 | vertex[4].set(rect.fLeft, rect.fTop); |
| 397 | } |
| 398 | |
| 399 | GrDrawTarget::AutoViewMatrixRestore avmr; |
| 400 | if (NULL != matrix) { |
| 401 | avmr.set(target); |
| 402 | target->preConcatViewMatrix(*matrix); |
| 403 | target->preConcatSamplerMatrix(0, *matrix); |
| 404 | } |
| 405 | |
| 406 | target->drawNonIndexed(primType, 0, vertCount); |
| 407 | } else { |
| 408 | #if GR_STATIC_RECT_VB |
| 409 | GrVertexLayout layout = (textured) ? |
| 410 | GrDrawTarget::StagePosAsTexCoordVertexLayoutBit(0) : |
| 411 | 0; |
bsalomon@google.com | de6ac2d | 2011-02-25 21:50:42 +0000 | [diff] [blame] | 412 | target->setVertexSourceToBuffer(layout, |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 413 | fGpu->getUnitSquareVertexBuffer()); |
| 414 | GrDrawTarget::AutoViewMatrixRestore avmr(target); |
| 415 | GrMatrix m; |
| 416 | m.setAll(rect.width(), 0, rect.fLeft, |
| 417 | 0, rect.height(), rect.fTop, |
| 418 | 0, 0, GrMatrix::I()[8]); |
| 419 | |
| 420 | if (NULL != matrix) { |
| 421 | m.postConcat(*matrix); |
| 422 | } |
| 423 | |
| 424 | target->preConcatViewMatrix(m); |
| 425 | |
| 426 | if (textured) { |
| 427 | target->preConcatSamplerMatrix(0, m); |
| 428 | } |
| 429 | target->drawNonIndexed(kTriangleFan_PrimitiveType, 0, 4); |
| 430 | #else |
| 431 | target->drawSimpleRect(rect, matrix, textured ? 1 : 0); |
| 432 | #endif |
| 433 | } |
| 434 | } |
| 435 | |
| 436 | void GrContext::drawRectToRect(const GrPaint& paint, |
| 437 | const GrRect& dstRect, |
| 438 | const GrRect& srcRect, |
| 439 | const GrMatrix* dstMatrix, |
| 440 | const GrMatrix* srcMatrix) { |
| 441 | |
| 442 | if (NULL == paint.getTexture()) { |
| 443 | drawRect(paint, dstRect, -1, dstMatrix); |
| 444 | return; |
| 445 | } |
bsalomon@google.com | de6ac2d | 2011-02-25 21:50:42 +0000 | [diff] [blame] | 446 | |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 447 | GR_STATIC_ASSERT(!BATCH_RECT_TO_RECT || !GR_STATIC_RECT_VB); |
| 448 | |
| 449 | #if GR_STATIC_RECT_VB |
| 450 | GrDrawTarget* target = this->prepareToDraw(paint, kUnbuffered_DrawCategory); |
| 451 | |
| 452 | GrVertexLayout layout = GrDrawTarget::StagePosAsTexCoordVertexLayoutBit(0); |
| 453 | GrDrawTarget::AutoViewMatrixRestore avmr(target); |
| 454 | |
| 455 | GrMatrix m; |
| 456 | |
| 457 | m.setAll(dstRect.width(), 0, dstRect.fLeft, |
| 458 | 0, dstRect.height(), dstRect.fTop, |
| 459 | 0, 0, GrMatrix::I()[8]); |
| 460 | if (NULL != dstMatrix) { |
| 461 | m.postConcat(*dstMatrix); |
| 462 | } |
| 463 | target->preConcatViewMatrix(m); |
| 464 | |
| 465 | m.setAll(srcRect.width(), 0, srcRect.fLeft, |
| 466 | 0, srcRect.height(), srcRect.fTop, |
| 467 | 0, 0, GrMatrix::I()[8]); |
| 468 | if (NULL != srcMatrix) { |
| 469 | m.postConcat(*srcMatrix); |
| 470 | } |
| 471 | target->preConcatSamplerMatrix(0, m); |
| 472 | |
| 473 | target->setVertexSourceToBuffer(layout, fGpu->getUnitSquareVertexBuffer()); |
| 474 | target->drawNonIndexed(kTriangleFan_PrimitiveType, 0, 4); |
| 475 | #else |
| 476 | |
| 477 | GrDrawTarget* target; |
bsalomon@google.com | de6ac2d | 2011-02-25 21:50:42 +0000 | [diff] [blame] | 478 | #if BATCH_RECT_TO_RECT |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 479 | target = this->prepareToDraw(paint, kBuffered_DrawCategory); |
bsalomon@google.com | de6ac2d | 2011-02-25 21:50:42 +0000 | [diff] [blame] | 480 | #else |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 481 | target = this->prepareToDraw(paint, kUnbuffered_DrawCategory); |
| 482 | #endif |
| 483 | |
| 484 | const GrRect* srcRects[GrDrawTarget::kNumStages] = {NULL}; |
| 485 | const GrMatrix* srcMatrices[GrDrawTarget::kNumStages] = {NULL}; |
| 486 | srcRects[0] = &srcRect; |
| 487 | srcMatrices[0] = srcMatrix; |
| 488 | |
| 489 | target->drawRect(dstRect, dstMatrix, 1, srcRects, srcMatrices); |
| 490 | #endif |
| 491 | } |
| 492 | |
| 493 | void GrContext::drawVertices(const GrPaint& paint, |
| 494 | GrPrimitiveType primitiveType, |
| 495 | int vertexCount, |
| 496 | const GrPoint positions[], |
| 497 | const GrPoint texCoords[], |
| 498 | const GrColor colors[], |
| 499 | const uint16_t indices[], |
| 500 | int indexCount) { |
| 501 | GrVertexLayout layout = 0; |
| 502 | int vertexSize = sizeof(GrPoint); |
| 503 | |
| 504 | GrDrawTarget::AutoReleaseGeometry geo; |
| 505 | |
| 506 | GrDrawTarget* target = this->prepareToDraw(paint, kUnbuffered_DrawCategory); |
| 507 | |
| 508 | if (NULL != paint.getTexture()) { |
| 509 | if (NULL == texCoords) { |
| 510 | layout |= GrDrawTarget::StagePosAsTexCoordVertexLayoutBit(0); |
| 511 | } else { |
| 512 | layout |= GrDrawTarget::StageTexCoordVertexLayoutBit(0,0); |
| 513 | vertexSize += sizeof(GrPoint); |
| 514 | } |
| 515 | } |
| 516 | |
| 517 | if (NULL != colors) { |
| 518 | layout |= GrDrawTarget::kColor_VertexLayoutBit; |
| 519 | vertexSize += sizeof(GrColor); |
| 520 | } |
| 521 | |
| 522 | if (sizeof(GrPoint) != vertexSize) { |
| 523 | if (!geo.set(target, layout, vertexCount, 0)) { |
| 524 | GrPrintf("Failed to get space for vertices!"); |
| 525 | return; |
| 526 | } |
| 527 | int texOffsets[GrDrawTarget::kMaxTexCoords]; |
| 528 | int colorOffset; |
| 529 | int vsize = GrDrawTarget::VertexSizeAndOffsetsByIdx(layout, |
| 530 | texOffsets, |
| 531 | &colorOffset); |
| 532 | void* curVertex = geo.vertices(); |
| 533 | |
| 534 | for (int i = 0; i < vertexCount; ++i) { |
| 535 | *((GrPoint*)curVertex) = positions[i]; |
| 536 | |
| 537 | if (texOffsets[0] > 0) { |
| 538 | *(GrPoint*)((intptr_t)curVertex + texOffsets[0]) = texCoords[i]; |
| 539 | } |
| 540 | if (colorOffset > 0) { |
| 541 | *(GrColor*)((intptr_t)curVertex + colorOffset) = colors[i]; |
| 542 | } |
| 543 | curVertex = (void*)((intptr_t)curVertex + vsize); |
| 544 | } |
| 545 | } else { |
| 546 | target->setVertexSourceToArray(layout, positions, vertexCount); |
| 547 | } |
| 548 | |
| 549 | if (NULL != indices) { |
| 550 | target->setIndexSourceToArray(indices, indexCount); |
| 551 | target->drawIndexed(primitiveType, 0, 0, vertexCount, indexCount); |
| 552 | } else { |
| 553 | target->drawNonIndexed(primitiveType, 0, vertexCount); |
| 554 | } |
| 555 | } |
| 556 | |
| 557 | |
| 558 | //////////////////////////////////////////////////////////////////////////////// |
| 559 | |
| 560 | void GrContext::drawPath(const GrPaint& paint, |
| 561 | GrPathIter* path, |
| 562 | GrPathFill fill, |
| 563 | const GrPoint* translate) { |
| 564 | |
| 565 | |
| 566 | GrDrawTarget* target = this->prepareToDraw(paint, kUnbuffered_DrawCategory); |
| 567 | |
| 568 | GrDrawTarget::StageBitfield enabledStages = 0; |
| 569 | if (NULL != paint.getTexture()) { |
| 570 | enabledStages |= 1; |
| 571 | } |
bsalomon@google.com | dfe75bc | 2011-03-25 12:31:16 +0000 | [diff] [blame] | 572 | GrPathRenderer* pr = getPathRenderer(target, path, fill); |
| 573 | pr->drawPath(target, enabledStages, path, fill, translate); |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 574 | } |
| 575 | |
bsalomon@google.com | d302f14 | 2011-03-03 13:54:13 +0000 | [diff] [blame] | 576 | void GrContext::drawPath(const GrPaint& paint, |
| 577 | const GrPath& path, |
| 578 | GrPathFill fill, |
| 579 | const GrPoint* translate) { |
| 580 | GrPath::Iter iter(path); |
| 581 | this->drawPath(paint, &iter, fill, translate); |
| 582 | } |
| 583 | |
| 584 | |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 585 | //////////////////////////////////////////////////////////////////////////////// |
| 586 | |
bsalomon@google.com | a7f84e1 | 2011-03-10 14:13:19 +0000 | [diff] [blame] | 587 | void GrContext::flush(int flagsBitfield) { |
| 588 | if (kDiscard_FlushBit & flagsBitfield) { |
| 589 | fDrawBuffer->reset(); |
| 590 | } else { |
| 591 | flushDrawBuffer(); |
| 592 | } |
| 593 | |
| 594 | if (kForceCurrentRenderTarget_FlushBit & flagsBitfield) { |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 595 | fGpu->forceRenderTargetFlush(); |
| 596 | } |
| 597 | } |
| 598 | |
| 599 | void GrContext::flushText() { |
| 600 | if (kText_DrawCategory == fLastDrawCategory) { |
| 601 | flushDrawBuffer(); |
| 602 | } |
| 603 | } |
| 604 | |
| 605 | void GrContext::flushDrawBuffer() { |
| 606 | #if BATCH_RECT_TO_RECT || DEFER_TEXT_RENDERING |
| 607 | fDrawBuffer->playback(fGpu); |
| 608 | fDrawBuffer->reset(); |
| 609 | #endif |
| 610 | } |
| 611 | |
| 612 | bool GrContext::readPixels(int left, int top, int width, int height, |
| 613 | GrTexture::PixelConfig config, void* buffer) { |
| 614 | this->flush(true); |
| 615 | return fGpu->readPixels(left, top, width, height, config, buffer); |
| 616 | } |
| 617 | |
| 618 | void GrContext::writePixels(int left, int top, int width, int height, |
| 619 | GrTexture::PixelConfig config, const void* buffer, |
| 620 | size_t stride) { |
| 621 | |
| 622 | // TODO: when underlying api has a direct way to do this we should use it |
| 623 | // (e.g. glDrawPixels on desktop GL). |
| 624 | |
| 625 | const GrGpu::TextureDesc desc = { |
| 626 | 0, GrGpu::kNone_AALevel, width, height, config |
| 627 | }; |
| 628 | GrTexture* texture = fGpu->createTexture(desc, buffer, stride); |
| 629 | if (NULL == texture) { |
| 630 | return; |
| 631 | } |
| 632 | |
| 633 | this->flush(true); |
| 634 | |
| 635 | GrAutoUnref aur(texture); |
| 636 | GrDrawTarget::AutoStateRestore asr(fGpu); |
| 637 | |
| 638 | GrMatrix matrix; |
| 639 | matrix.setTranslate(GrIntToScalar(left), GrIntToScalar(top)); |
| 640 | fGpu->setViewMatrix(matrix); |
| 641 | |
| 642 | fGpu->disableState(GrDrawTarget::kClip_StateBit); |
| 643 | fGpu->setAlpha(0xFF); |
| 644 | fGpu->setBlendFunc(kOne_BlendCoeff, |
| 645 | kZero_BlendCoeff); |
| 646 | fGpu->setTexture(0, texture); |
| 647 | |
| 648 | GrSamplerState sampler; |
| 649 | sampler.setClampNoFilter(); |
| 650 | matrix.setScale(GR_Scalar1 / width, GR_Scalar1 / height); |
| 651 | sampler.setMatrix(matrix); |
| 652 | fGpu->setSamplerState(0, sampler); |
| 653 | |
| 654 | GrVertexLayout layout = GrDrawTarget::StagePosAsTexCoordVertexLayoutBit(0); |
| 655 | static const int VCOUNT = 4; |
| 656 | |
| 657 | GrDrawTarget::AutoReleaseGeometry geo(fGpu, layout, VCOUNT, 0); |
| 658 | if (!geo.succeeded()) { |
| 659 | return; |
| 660 | } |
| 661 | ((GrPoint*)geo.vertices())->setIRectFan(0, 0, width, height); |
| 662 | fGpu->drawNonIndexed(kTriangleFan_PrimitiveType, 0, VCOUNT); |
| 663 | } |
| 664 | //////////////////////////////////////////////////////////////////////////////// |
| 665 | |
| 666 | void GrContext::SetPaint(const GrPaint& paint, GrDrawTarget* target) { |
| 667 | target->setTexture(0, paint.getTexture()); |
| 668 | target->setSamplerState(0, paint.fSampler); |
| 669 | target->setColor(paint.fColor); |
| 670 | |
| 671 | if (paint.fDither) { |
| 672 | target->enableState(GrDrawTarget::kDither_StateBit); |
| 673 | } else { |
| 674 | target->disableState(GrDrawTarget::kDither_StateBit); |
| 675 | } |
| 676 | if (paint.fAntiAlias) { |
| 677 | target->enableState(GrDrawTarget::kAntialias_StateBit); |
| 678 | } else { |
| 679 | target->disableState(GrDrawTarget::kAntialias_StateBit); |
| 680 | } |
| 681 | target->setBlendFunc(paint.fSrcBlendCoeff, paint.fDstBlendCoeff); |
| 682 | } |
| 683 | |
bsalomon@google.com | de6ac2d | 2011-02-25 21:50:42 +0000 | [diff] [blame] | 684 | GrDrawTarget* GrContext::prepareToDraw(const GrPaint& paint, |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 685 | DrawCategory category) { |
| 686 | if (category != fLastDrawCategory) { |
| 687 | flushDrawBuffer(); |
| 688 | fLastDrawCategory = category; |
| 689 | } |
| 690 | SetPaint(paint, fGpu); |
| 691 | GrDrawTarget* target = fGpu; |
| 692 | switch (category) { |
| 693 | case kText_DrawCategory: |
| 694 | #if DEFER_TEXT_RENDERING |
| 695 | target = fDrawBuffer; |
| 696 | fDrawBuffer->initializeDrawStateAndClip(*fGpu); |
| 697 | #else |
| 698 | target = fGpu; |
| 699 | #endif |
| 700 | break; |
| 701 | case kUnbuffered_DrawCategory: |
| 702 | target = fGpu; |
| 703 | break; |
| 704 | case kBuffered_DrawCategory: |
| 705 | target = fDrawBuffer; |
| 706 | fDrawBuffer->initializeDrawStateAndClip(*fGpu); |
| 707 | break; |
| 708 | } |
| 709 | return target; |
| 710 | } |
| 711 | |
| 712 | //////////////////////////////////////////////////////////////////////////////// |
| 713 | |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 714 | void GrContext::setRenderTarget(GrRenderTarget* target) { |
bsalomon@google.com | 8fe7247 | 2011-03-30 21:26:44 +0000 | [diff] [blame^] | 715 | this->flush(false); |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 716 | fGpu->setRenderTarget(target); |
| 717 | } |
| 718 | |
| 719 | GrRenderTarget* GrContext::getRenderTarget() { |
| 720 | return fGpu->getRenderTarget(); |
| 721 | } |
| 722 | |
| 723 | const GrRenderTarget* GrContext::getRenderTarget() const { |
| 724 | return fGpu->getRenderTarget(); |
| 725 | } |
| 726 | |
| 727 | const GrMatrix& GrContext::getMatrix() const { |
| 728 | return fGpu->getViewMatrix(); |
| 729 | } |
| 730 | |
| 731 | void GrContext::setMatrix(const GrMatrix& m) { |
| 732 | fGpu->setViewMatrix(m); |
| 733 | } |
| 734 | |
| 735 | void GrContext::concatMatrix(const GrMatrix& m) const { |
| 736 | fGpu->preConcatViewMatrix(m); |
| 737 | } |
| 738 | |
| 739 | static inline intptr_t setOrClear(intptr_t bits, int shift, intptr_t pred) { |
| 740 | intptr_t mask = 1 << shift; |
| 741 | if (pred) { |
| 742 | bits |= mask; |
| 743 | } else { |
| 744 | bits &= ~mask; |
| 745 | } |
| 746 | return bits; |
| 747 | } |
| 748 | |
| 749 | void GrContext::resetStats() { |
| 750 | fGpu->resetStats(); |
| 751 | } |
| 752 | |
| 753 | const GrGpu::Stats& GrContext::getStats() const { |
| 754 | return fGpu->getStats(); |
| 755 | } |
| 756 | |
| 757 | void GrContext::printStats() const { |
| 758 | fGpu->printStats(); |
| 759 | } |
| 760 | |
bsalomon@google.com | dfe75bc | 2011-03-25 12:31:16 +0000 | [diff] [blame] | 761 | GrContext::GrContext(GrGpu* gpu) : |
| 762 | fDefaultPathRenderer(gpu->supportsTwoSidedStencil(), |
| 763 | gpu->supportsStencilWrapOps()) { |
| 764 | |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 765 | fGpu = gpu; |
| 766 | fGpu->ref(); |
bsalomon@google.com | 8fe7247 | 2011-03-30 21:26:44 +0000 | [diff] [blame^] | 767 | |
bsalomon@google.com | dfe75bc | 2011-03-25 12:31:16 +0000 | [diff] [blame] | 768 | fCustomPathRenderer = GrPathRenderer::CreatePathRenderer(); |
| 769 | fGpu->setClipPathRenderer(fCustomPathRenderer); |
| 770 | |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 771 | fTextureCache = new GrTextureCache(MAX_TEXTURE_CACHE_COUNT, |
| 772 | MAX_TEXTURE_CACHE_BYTES); |
| 773 | fFontCache = new GrFontCache(fGpu); |
| 774 | |
| 775 | fLastDrawCategory = kUnbuffered_DrawCategory; |
| 776 | |
bsalomon@google.com | 8fe7247 | 2011-03-30 21:26:44 +0000 | [diff] [blame^] | 777 | fDrawBuffer = NULL; |
| 778 | fDrawBufferVBAllocPool = NULL; |
| 779 | fDrawBufferIBAllocPool = NULL; |
| 780 | |
| 781 | this->setupDrawBuffer(); |
| 782 | } |
| 783 | |
| 784 | void GrContext::setupDrawBuffer() { |
| 785 | |
| 786 | GrAssert(NULL == fDrawBuffer); |
| 787 | GrAssert(NULL == fDrawBufferVBAllocPool); |
| 788 | GrAssert(NULL == fDrawBufferIBAllocPool); |
| 789 | |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 790 | #if DEFER_TEXT_RENDERING || BATCH_RECT_TO_RECT |
bsalomon@google.com | de6ac2d | 2011-02-25 21:50:42 +0000 | [diff] [blame] | 791 | fDrawBufferVBAllocPool = |
bsalomon@google.com | 8fe7247 | 2011-03-30 21:26:44 +0000 | [diff] [blame^] | 792 | new GrVertexBufferAllocPool(fGpu, false, |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 793 | DRAW_BUFFER_VBPOOL_BUFFER_SIZE, |
| 794 | DRAW_BUFFER_VBPOOL_PREALLOC_BUFFERS); |
bsalomon@google.com | de6ac2d | 2011-02-25 21:50:42 +0000 | [diff] [blame] | 795 | fDrawBufferIBAllocPool = |
bsalomon@google.com | 8fe7247 | 2011-03-30 21:26:44 +0000 | [diff] [blame^] | 796 | new GrIndexBufferAllocPool(fGpu, false, |
bsalomon@google.com | de6ac2d | 2011-02-25 21:50:42 +0000 | [diff] [blame] | 797 | DRAW_BUFFER_IBPOOL_BUFFER_SIZE, |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 798 | DRAW_BUFFER_IBPOOL_PREALLOC_BUFFERS); |
| 799 | |
| 800 | fDrawBuffer = new GrInOrderDrawBuffer(fDrawBufferVBAllocPool, |
| 801 | fDrawBufferIBAllocPool); |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 802 | #endif |
| 803 | |
| 804 | #if BATCH_RECT_TO_RECT |
| 805 | fDrawBuffer->setQuadIndexBuffer(this->getQuadIndexBuffer()); |
| 806 | #endif |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 807 | } |
| 808 | |
| 809 | bool GrContext::finalizeTextureKey(GrTextureKey* key, |
| 810 | const GrSamplerState& sampler) const { |
| 811 | uint32_t bits = 0; |
| 812 | uint16_t width = key->width(); |
| 813 | uint16_t height = key->height(); |
| 814 | |
| 815 | |
| 816 | if (!fGpu->npotTextureTileSupport()) { |
| 817 | bool isPow2 = GrIsPow2(width) && GrIsPow2(height); |
| 818 | |
| 819 | bool tiled = (sampler.getWrapX() != GrSamplerState::kClamp_WrapMode) || |
| 820 | (sampler.getWrapY() != GrSamplerState::kClamp_WrapMode); |
| 821 | |
| 822 | if (tiled && !isPow2) { |
| 823 | bits |= 1; |
| 824 | bits |= sampler.isFilter() ? 2 : 0; |
| 825 | } |
| 826 | } |
| 827 | key->finalize(bits); |
| 828 | return 0 != bits; |
| 829 | } |
| 830 | |
| 831 | GrDrawTarget* GrContext::getTextTarget(const GrPaint& paint) { |
| 832 | GrDrawTarget* target; |
| 833 | #if DEFER_TEXT_RENDERING |
| 834 | target = prepareToDraw(paint, kText_DrawCategory); |
| 835 | #else |
| 836 | target = prepareToDraw(paint, kUnbuffered_DrawCategory); |
| 837 | #endif |
| 838 | SetPaint(paint, target); |
| 839 | return target; |
| 840 | } |
| 841 | |
| 842 | const GrIndexBuffer* GrContext::getQuadIndexBuffer() const { |
| 843 | return fGpu->getQuadIndexBuffer(); |
| 844 | } |
bsalomon@google.com | dfe75bc | 2011-03-25 12:31:16 +0000 | [diff] [blame] | 845 | |
| 846 | GrPathRenderer* GrContext::getPathRenderer(const GrDrawTarget* target, |
| 847 | GrPathIter* path, |
| 848 | GrPathFill fill) { |
bsalomon@google.com | 8fe7247 | 2011-03-30 21:26:44 +0000 | [diff] [blame^] | 849 | if (NULL != fCustomPathRenderer && |
bsalomon@google.com | dfe75bc | 2011-03-25 12:31:16 +0000 | [diff] [blame] | 850 | fCustomPathRenderer->canDrawPath(target, path, fill)) { |
| 851 | return fCustomPathRenderer; |
| 852 | } else { |
| 853 | GrAssert(fDefaultPathRenderer.canDrawPath(target, path, fill)); |
| 854 | return &fDefaultPathRenderer; |
| 855 | } |
| 856 | } |