bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 1 | /* |
| 2 | Copyright 2010 Google Inc. |
| 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() { |
| 60 | fGpu->unref(); |
| 61 | delete fTextureCache; |
| 62 | delete fFontCache; |
| 63 | delete fDrawBuffer; |
| 64 | delete fDrawBufferVBAllocPool; |
bsalomon@google.com | de6ac2d | 2011-02-25 21:50:42 +0000 | [diff] [blame] | 65 | delete fDrawBufferIBAllocPool; |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 66 | delete fPathRenderer; |
| 67 | } |
| 68 | |
| 69 | void GrContext::abandonAllTextures() { |
| 70 | fTextureCache->deleteAll(GrTextureCache::kAbandonTexture_DeleteMode); |
| 71 | fFontCache->abandonAll(); |
| 72 | } |
| 73 | |
| 74 | GrTextureEntry* GrContext::findAndLockTexture(GrTextureKey* key, |
| 75 | const GrSamplerState& sampler) { |
| 76 | finalizeTextureKey(key, sampler); |
| 77 | return fTextureCache->findAndLock(*key); |
| 78 | } |
| 79 | |
| 80 | static void stretchImage(void* dst, |
| 81 | int dstW, |
| 82 | int dstH, |
| 83 | void* src, |
| 84 | int srcW, |
| 85 | int srcH, |
| 86 | int bpp) { |
| 87 | GrFixed dx = (srcW << 16) / dstW; |
| 88 | GrFixed dy = (srcH << 16) / dstH; |
| 89 | |
| 90 | GrFixed y = dy >> 1; |
| 91 | |
| 92 | int dstXLimit = dstW*bpp; |
| 93 | for (int j = 0; j < dstH; ++j) { |
| 94 | GrFixed x = dx >> 1; |
| 95 | void* srcRow = (uint8_t*)src + (y>>16)*srcW*bpp; |
| 96 | void* dstRow = (uint8_t*)dst + j*dstW*bpp; |
| 97 | for (int i = 0; i < dstXLimit; i += bpp) { |
| 98 | memcpy((uint8_t*) dstRow + i, |
| 99 | (uint8_t*) srcRow + (x>>16)*bpp, |
| 100 | bpp); |
| 101 | x += dx; |
| 102 | } |
| 103 | y += dy; |
| 104 | } |
| 105 | } |
| 106 | |
| 107 | GrTextureEntry* GrContext::createAndLockTexture(GrTextureKey* key, |
| 108 | const GrSamplerState& sampler, |
| 109 | const GrGpu::TextureDesc& desc, |
| 110 | void* srcData, size_t rowBytes) { |
| 111 | GrAssert(key->width() == desc.fWidth); |
| 112 | GrAssert(key->height() == desc.fHeight); |
| 113 | |
| 114 | #if GR_DUMP_TEXTURE_UPLOAD |
| 115 | GrPrintf("GrContext::createAndLockTexture [%d %d]\n", desc.fWidth, desc.fHeight); |
| 116 | #endif |
| 117 | |
| 118 | GrTextureEntry* entry = NULL; |
| 119 | bool special = finalizeTextureKey(key, sampler); |
| 120 | if (special) { |
| 121 | GrTextureEntry* clampEntry; |
| 122 | GrTextureKey clampKey(*key); |
| 123 | clampEntry = findAndLockTexture(&clampKey, GrSamplerState::ClampNoFilter()); |
| 124 | |
| 125 | if (NULL == clampEntry) { |
| 126 | clampEntry = createAndLockTexture(&clampKey, |
| 127 | GrSamplerState::ClampNoFilter(), |
| 128 | desc, srcData, rowBytes); |
| 129 | GrAssert(NULL != clampEntry); |
| 130 | if (NULL == clampEntry) { |
| 131 | return NULL; |
| 132 | } |
| 133 | } |
| 134 | GrGpu::TextureDesc rtDesc = desc; |
| 135 | rtDesc.fFlags |= GrGpu::kRenderTarget_TextureFlag | |
| 136 | GrGpu::kNoPathRendering_TextureFlag; |
| 137 | rtDesc.fWidth = GrNextPow2(GrMax<int>(desc.fWidth, |
| 138 | fGpu->minRenderTargetWidth())); |
| 139 | rtDesc.fHeight = GrNextPow2(GrMax<int>(desc.fHeight, |
| 140 | fGpu->minRenderTargetHeight())); |
| 141 | |
| 142 | GrTexture* texture = fGpu->createTexture(rtDesc, NULL, 0); |
| 143 | |
| 144 | if (NULL != texture) { |
| 145 | GrDrawTarget::AutoStateRestore asr(fGpu); |
| 146 | fGpu->setRenderTarget(texture->asRenderTarget()); |
| 147 | fGpu->setTexture(0, clampEntry->texture()); |
bsalomon@google.com | d302f14 | 2011-03-03 13:54:13 +0000 | [diff] [blame] | 148 | fGpu->disableStencil(); |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 149 | fGpu->setViewMatrix(GrMatrix::I()); |
| 150 | fGpu->setAlpha(0xff); |
| 151 | fGpu->setBlendFunc(kOne_BlendCoeff, kZero_BlendCoeff); |
| 152 | fGpu->disableState(GrDrawTarget::kDither_StateBit | |
| 153 | GrDrawTarget::kClip_StateBit | |
| 154 | GrDrawTarget::kAntialias_StateBit); |
| 155 | GrSamplerState stretchSampler(GrSamplerState::kClamp_WrapMode, |
| 156 | GrSamplerState::kClamp_WrapMode, |
| 157 | sampler.isFilter()); |
| 158 | fGpu->setSamplerState(0, stretchSampler); |
| 159 | |
| 160 | static const GrVertexLayout layout = |
| 161 | GrDrawTarget::StageTexCoordVertexLayoutBit(0,0); |
| 162 | GrDrawTarget::AutoReleaseGeometry arg(fGpu, layout, 4, 0); |
| 163 | |
| 164 | if (arg.succeeded()) { |
| 165 | GrPoint* verts = (GrPoint*) arg.vertices(); |
| 166 | verts[0].setIRectFan(0, 0, |
| 167 | texture->width(), |
| 168 | texture->height(), |
| 169 | 2*sizeof(GrPoint)); |
| 170 | verts[1].setIRectFan(0, 0, 1, 1, 2*sizeof(GrPoint)); |
| 171 | fGpu->drawNonIndexed(kTriangleFan_PrimitiveType, |
| 172 | 0, 4); |
| 173 | entry = fTextureCache->createAndLock(*key, texture); |
| 174 | } |
| 175 | texture->removeRenderTarget(); |
| 176 | } else { |
| 177 | // TODO: Our CPU stretch doesn't filter. But we create separate |
| 178 | // stretched textures when the sampler state is either filtered or |
| 179 | // not. Either implement filtered stretch blit on CPU or just create |
| 180 | // one when FBO case fails. |
| 181 | |
| 182 | rtDesc.fFlags = 0; |
| 183 | // no longer need to clamp at min RT size. |
| 184 | rtDesc.fWidth = GrNextPow2(desc.fWidth); |
| 185 | rtDesc.fHeight = GrNextPow2(desc.fHeight); |
| 186 | int bpp = GrTexture::BytesPerPixel(desc.fFormat); |
| 187 | GrAutoSMalloc<128*128*4> stretchedPixels(bpp * |
| 188 | rtDesc.fWidth * |
| 189 | rtDesc.fHeight); |
| 190 | stretchImage(stretchedPixels.get(), rtDesc.fWidth, rtDesc.fHeight, |
| 191 | srcData, desc.fWidth, desc.fHeight, bpp); |
| 192 | |
| 193 | size_t stretchedRowBytes = rtDesc.fWidth * bpp; |
| 194 | |
| 195 | GrTexture* texture = fGpu->createTexture(rtDesc, |
| 196 | stretchedPixels.get(), |
| 197 | stretchedRowBytes); |
| 198 | GrAssert(NULL != texture); |
| 199 | entry = fTextureCache->createAndLock(*key, texture); |
| 200 | } |
| 201 | fTextureCache->unlock(clampEntry); |
| 202 | |
| 203 | } else { |
| 204 | GrTexture* texture = fGpu->createTexture(desc, srcData, rowBytes); |
| 205 | if (NULL != texture) { |
| 206 | entry = fTextureCache->createAndLock(*key, texture); |
| 207 | } else { |
| 208 | entry = NULL; |
| 209 | } |
| 210 | } |
| 211 | return entry; |
| 212 | } |
| 213 | |
| 214 | void GrContext::unlockTexture(GrTextureEntry* entry) { |
| 215 | fTextureCache->unlock(entry); |
| 216 | } |
| 217 | |
| 218 | void GrContext::detachCachedTexture(GrTextureEntry* entry) { |
| 219 | fTextureCache->detach(entry); |
| 220 | } |
| 221 | |
| 222 | void GrContext::reattachAndUnlockCachedTexture(GrTextureEntry* entry) { |
| 223 | fTextureCache->reattachAndUnlock(entry); |
| 224 | } |
| 225 | |
| 226 | GrTexture* GrContext::createUncachedTexture(const GrGpu::TextureDesc& desc, |
| 227 | void* srcData, |
| 228 | size_t rowBytes) { |
| 229 | return fGpu->createTexture(desc, srcData, rowBytes); |
| 230 | } |
| 231 | |
| 232 | void GrContext::getTextureCacheLimits(int* maxTextures, |
| 233 | size_t* maxTextureBytes) const { |
| 234 | fTextureCache->getLimits(maxTextures, maxTextureBytes); |
| 235 | } |
| 236 | |
| 237 | void GrContext::setTextureCacheLimits(int maxTextures, size_t maxTextureBytes) { |
| 238 | fTextureCache->setLimits(maxTextures, maxTextureBytes); |
| 239 | } |
| 240 | |
| 241 | int GrContext::getMaxTextureDimension() { |
| 242 | return fGpu->maxTextureDimension(); |
| 243 | } |
| 244 | |
| 245 | /////////////////////////////////////////////////////////////////////////////// |
| 246 | |
| 247 | GrRenderTarget* GrContext::createPlatformRenderTarget( |
| 248 | intptr_t platformRenderTarget, |
| 249 | int stencilBits, |
| 250 | int width, int height) { |
| 251 | return fGpu->createPlatformRenderTarget(platformRenderTarget, stencilBits, |
| 252 | width, height); |
| 253 | } |
| 254 | |
| 255 | bool GrContext::supportsIndex8PixelConfig(const GrSamplerState& sampler, |
| 256 | int width, int height) { |
| 257 | if (!fGpu->supports8BitPalette()) { |
| 258 | return false; |
| 259 | } |
| 260 | |
| 261 | |
| 262 | bool isPow2 = GrIsPow2(width) && GrIsPow2(height); |
| 263 | |
| 264 | if (!isPow2) { |
| 265 | if (!fGpu->npotTextureSupport()) { |
| 266 | return false; |
| 267 | } |
| 268 | |
| 269 | bool tiled = sampler.getWrapX() != GrSamplerState::kClamp_WrapMode || |
| 270 | sampler.getWrapY() != GrSamplerState::kClamp_WrapMode; |
| 271 | if (tiled && !fGpu->npotTextureTileSupport()) { |
| 272 | return false; |
| 273 | } |
| 274 | } |
| 275 | return true; |
| 276 | } |
| 277 | |
| 278 | //////////////////////////////////////////////////////////////////////////////// |
| 279 | |
| 280 | void GrContext::setClip(const GrClip& clip) { |
| 281 | fGpu->setClip(clip); |
| 282 | fGpu->enableState(GrDrawTarget::kClip_StateBit); |
| 283 | } |
| 284 | |
| 285 | void GrContext::setClip(const GrIRect& rect) { |
| 286 | GrClip clip; |
bsalomon@google.com | d302f14 | 2011-03-03 13:54:13 +0000 | [diff] [blame] | 287 | clip.setFromIRect(rect); |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 288 | fGpu->setClip(clip); |
| 289 | } |
| 290 | |
| 291 | //////////////////////////////////////////////////////////////////////////////// |
| 292 | |
| 293 | void GrContext::eraseColor(GrColor color) { |
| 294 | fGpu->eraseColor(color); |
| 295 | } |
| 296 | |
| 297 | void GrContext::drawPaint(const GrPaint& paint) { |
| 298 | // set rect to be big enough to fill the space, but not super-huge, so we |
| 299 | // don't overflow fixed-point implementations |
bsalomon@google.com | d302f14 | 2011-03-03 13:54:13 +0000 | [diff] [blame] | 300 | GrRect r; |
| 301 | r.setLTRB(0, 0, |
| 302 | GrIntToScalar(getRenderTarget()->width()), |
| 303 | GrIntToScalar(getRenderTarget()->height())); |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 304 | GrMatrix inverse; |
| 305 | if (fGpu->getViewInverse(&inverse)) { |
| 306 | inverse.mapRect(&r); |
| 307 | } else { |
| 308 | GrPrintf("---- fGpu->getViewInverse failed\n"); |
| 309 | } |
| 310 | this->drawRect(paint, r); |
| 311 | } |
| 312 | |
| 313 | /* create a triangle strip that strokes the specified triangle. There are 8 |
| 314 | unique vertices, but we repreat the last 2 to close up. Alternatively we |
| 315 | could use an indices array, and then only send 8 verts, but not sure that |
| 316 | would be faster. |
| 317 | */ |
| 318 | static void setStrokeRectStrip(GrPoint verts[10], const GrRect& rect, |
| 319 | GrScalar width) { |
| 320 | const GrScalar rad = GrScalarHalf(width); |
| 321 | |
| 322 | verts[0].set(rect.fLeft + rad, rect.fTop + rad); |
| 323 | verts[1].set(rect.fLeft - rad, rect.fTop - rad); |
| 324 | verts[2].set(rect.fRight - rad, rect.fTop + rad); |
| 325 | verts[3].set(rect.fRight + rad, rect.fTop - rad); |
| 326 | verts[4].set(rect.fRight - rad, rect.fBottom - rad); |
| 327 | verts[5].set(rect.fRight + rad, rect.fBottom + rad); |
| 328 | verts[6].set(rect.fLeft + rad, rect.fBottom - rad); |
| 329 | verts[7].set(rect.fLeft - rad, rect.fBottom + rad); |
| 330 | verts[8] = verts[0]; |
| 331 | verts[9] = verts[1]; |
| 332 | } |
| 333 | |
| 334 | void GrContext::drawRect(const GrPaint& paint, |
| 335 | const GrRect& rect, |
| 336 | GrScalar width, |
| 337 | const GrMatrix* matrix) { |
| 338 | |
| 339 | bool textured = NULL != paint.getTexture(); |
| 340 | |
| 341 | GrDrawTarget* target = this->prepareToDraw(paint, kUnbuffered_DrawCategory); |
| 342 | |
| 343 | if (width >= 0) { |
| 344 | // TODO: consider making static vertex buffers for these cases. |
| 345 | // Hairline could be done by just adding closing vertex to |
| 346 | // unitSquareVertexBuffer() |
| 347 | GrVertexLayout layout = (textured) ? |
| 348 | GrDrawTarget::StagePosAsTexCoordVertexLayoutBit(0) : |
| 349 | 0; |
| 350 | static const int worstCaseVertCount = 10; |
| 351 | GrDrawTarget::AutoReleaseGeometry geo(target, layout, worstCaseVertCount, 0); |
| 352 | |
| 353 | if (!geo.succeeded()) { |
| 354 | return; |
| 355 | } |
| 356 | |
| 357 | GrPrimitiveType primType; |
| 358 | int vertCount; |
| 359 | GrPoint* vertex = geo.positions(); |
| 360 | |
| 361 | if (width > 0) { |
| 362 | vertCount = 10; |
| 363 | primType = kTriangleStrip_PrimitiveType; |
| 364 | setStrokeRectStrip(vertex, rect, width); |
| 365 | } else { |
| 366 | // hairline |
| 367 | vertCount = 5; |
| 368 | primType = kLineStrip_PrimitiveType; |
| 369 | vertex[0].set(rect.fLeft, rect.fTop); |
| 370 | vertex[1].set(rect.fRight, rect.fTop); |
| 371 | vertex[2].set(rect.fRight, rect.fBottom); |
| 372 | vertex[3].set(rect.fLeft, rect.fBottom); |
| 373 | vertex[4].set(rect.fLeft, rect.fTop); |
| 374 | } |
| 375 | |
| 376 | GrDrawTarget::AutoViewMatrixRestore avmr; |
| 377 | if (NULL != matrix) { |
| 378 | avmr.set(target); |
| 379 | target->preConcatViewMatrix(*matrix); |
| 380 | target->preConcatSamplerMatrix(0, *matrix); |
| 381 | } |
| 382 | |
| 383 | target->drawNonIndexed(primType, 0, vertCount); |
| 384 | } else { |
| 385 | #if GR_STATIC_RECT_VB |
| 386 | GrVertexLayout layout = (textured) ? |
| 387 | GrDrawTarget::StagePosAsTexCoordVertexLayoutBit(0) : |
| 388 | 0; |
bsalomon@google.com | de6ac2d | 2011-02-25 21:50:42 +0000 | [diff] [blame] | 389 | target->setVertexSourceToBuffer(layout, |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 390 | fGpu->getUnitSquareVertexBuffer()); |
| 391 | GrDrawTarget::AutoViewMatrixRestore avmr(target); |
| 392 | GrMatrix m; |
| 393 | m.setAll(rect.width(), 0, rect.fLeft, |
| 394 | 0, rect.height(), rect.fTop, |
| 395 | 0, 0, GrMatrix::I()[8]); |
| 396 | |
| 397 | if (NULL != matrix) { |
| 398 | m.postConcat(*matrix); |
| 399 | } |
| 400 | |
| 401 | target->preConcatViewMatrix(m); |
| 402 | |
| 403 | if (textured) { |
| 404 | target->preConcatSamplerMatrix(0, m); |
| 405 | } |
| 406 | target->drawNonIndexed(kTriangleFan_PrimitiveType, 0, 4); |
| 407 | #else |
| 408 | target->drawSimpleRect(rect, matrix, textured ? 1 : 0); |
| 409 | #endif |
| 410 | } |
| 411 | } |
| 412 | |
| 413 | void GrContext::drawRectToRect(const GrPaint& paint, |
| 414 | const GrRect& dstRect, |
| 415 | const GrRect& srcRect, |
| 416 | const GrMatrix* dstMatrix, |
| 417 | const GrMatrix* srcMatrix) { |
| 418 | |
| 419 | if (NULL == paint.getTexture()) { |
| 420 | drawRect(paint, dstRect, -1, dstMatrix); |
| 421 | return; |
| 422 | } |
bsalomon@google.com | de6ac2d | 2011-02-25 21:50:42 +0000 | [diff] [blame] | 423 | |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 424 | GR_STATIC_ASSERT(!BATCH_RECT_TO_RECT || !GR_STATIC_RECT_VB); |
| 425 | |
| 426 | #if GR_STATIC_RECT_VB |
| 427 | GrDrawTarget* target = this->prepareToDraw(paint, kUnbuffered_DrawCategory); |
| 428 | |
| 429 | GrVertexLayout layout = GrDrawTarget::StagePosAsTexCoordVertexLayoutBit(0); |
| 430 | GrDrawTarget::AutoViewMatrixRestore avmr(target); |
| 431 | |
| 432 | GrMatrix m; |
| 433 | |
| 434 | m.setAll(dstRect.width(), 0, dstRect.fLeft, |
| 435 | 0, dstRect.height(), dstRect.fTop, |
| 436 | 0, 0, GrMatrix::I()[8]); |
| 437 | if (NULL != dstMatrix) { |
| 438 | m.postConcat(*dstMatrix); |
| 439 | } |
| 440 | target->preConcatViewMatrix(m); |
| 441 | |
| 442 | m.setAll(srcRect.width(), 0, srcRect.fLeft, |
| 443 | 0, srcRect.height(), srcRect.fTop, |
| 444 | 0, 0, GrMatrix::I()[8]); |
| 445 | if (NULL != srcMatrix) { |
| 446 | m.postConcat(*srcMatrix); |
| 447 | } |
| 448 | target->preConcatSamplerMatrix(0, m); |
| 449 | |
| 450 | target->setVertexSourceToBuffer(layout, fGpu->getUnitSquareVertexBuffer()); |
| 451 | target->drawNonIndexed(kTriangleFan_PrimitiveType, 0, 4); |
| 452 | #else |
| 453 | |
| 454 | GrDrawTarget* target; |
bsalomon@google.com | de6ac2d | 2011-02-25 21:50:42 +0000 | [diff] [blame] | 455 | #if BATCH_RECT_TO_RECT |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 456 | target = this->prepareToDraw(paint, kBuffered_DrawCategory); |
bsalomon@google.com | de6ac2d | 2011-02-25 21:50:42 +0000 | [diff] [blame] | 457 | #else |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 458 | target = this->prepareToDraw(paint, kUnbuffered_DrawCategory); |
| 459 | #endif |
| 460 | |
| 461 | const GrRect* srcRects[GrDrawTarget::kNumStages] = {NULL}; |
| 462 | const GrMatrix* srcMatrices[GrDrawTarget::kNumStages] = {NULL}; |
| 463 | srcRects[0] = &srcRect; |
| 464 | srcMatrices[0] = srcMatrix; |
| 465 | |
| 466 | target->drawRect(dstRect, dstMatrix, 1, srcRects, srcMatrices); |
| 467 | #endif |
| 468 | } |
| 469 | |
| 470 | void GrContext::drawVertices(const GrPaint& paint, |
| 471 | GrPrimitiveType primitiveType, |
| 472 | int vertexCount, |
| 473 | const GrPoint positions[], |
| 474 | const GrPoint texCoords[], |
| 475 | const GrColor colors[], |
| 476 | const uint16_t indices[], |
| 477 | int indexCount) { |
| 478 | GrVertexLayout layout = 0; |
| 479 | int vertexSize = sizeof(GrPoint); |
| 480 | |
| 481 | GrDrawTarget::AutoReleaseGeometry geo; |
| 482 | |
| 483 | GrDrawTarget* target = this->prepareToDraw(paint, kUnbuffered_DrawCategory); |
| 484 | |
| 485 | if (NULL != paint.getTexture()) { |
| 486 | if (NULL == texCoords) { |
| 487 | layout |= GrDrawTarget::StagePosAsTexCoordVertexLayoutBit(0); |
| 488 | } else { |
| 489 | layout |= GrDrawTarget::StageTexCoordVertexLayoutBit(0,0); |
| 490 | vertexSize += sizeof(GrPoint); |
| 491 | } |
| 492 | } |
| 493 | |
| 494 | if (NULL != colors) { |
| 495 | layout |= GrDrawTarget::kColor_VertexLayoutBit; |
| 496 | vertexSize += sizeof(GrColor); |
| 497 | } |
| 498 | |
| 499 | if (sizeof(GrPoint) != vertexSize) { |
| 500 | if (!geo.set(target, layout, vertexCount, 0)) { |
| 501 | GrPrintf("Failed to get space for vertices!"); |
| 502 | return; |
| 503 | } |
| 504 | int texOffsets[GrDrawTarget::kMaxTexCoords]; |
| 505 | int colorOffset; |
| 506 | int vsize = GrDrawTarget::VertexSizeAndOffsetsByIdx(layout, |
| 507 | texOffsets, |
| 508 | &colorOffset); |
| 509 | void* curVertex = geo.vertices(); |
| 510 | |
| 511 | for (int i = 0; i < vertexCount; ++i) { |
| 512 | *((GrPoint*)curVertex) = positions[i]; |
| 513 | |
| 514 | if (texOffsets[0] > 0) { |
| 515 | *(GrPoint*)((intptr_t)curVertex + texOffsets[0]) = texCoords[i]; |
| 516 | } |
| 517 | if (colorOffset > 0) { |
| 518 | *(GrColor*)((intptr_t)curVertex + colorOffset) = colors[i]; |
| 519 | } |
| 520 | curVertex = (void*)((intptr_t)curVertex + vsize); |
| 521 | } |
| 522 | } else { |
| 523 | target->setVertexSourceToArray(layout, positions, vertexCount); |
| 524 | } |
| 525 | |
| 526 | if (NULL != indices) { |
| 527 | target->setIndexSourceToArray(indices, indexCount); |
| 528 | target->drawIndexed(primitiveType, 0, 0, vertexCount, indexCount); |
| 529 | } else { |
| 530 | target->drawNonIndexed(primitiveType, 0, vertexCount); |
| 531 | } |
| 532 | } |
| 533 | |
| 534 | |
| 535 | //////////////////////////////////////////////////////////////////////////////// |
| 536 | |
| 537 | void GrContext::drawPath(const GrPaint& paint, |
| 538 | GrPathIter* path, |
| 539 | GrPathFill fill, |
| 540 | const GrPoint* translate) { |
| 541 | |
| 542 | |
| 543 | GrDrawTarget* target = this->prepareToDraw(paint, kUnbuffered_DrawCategory); |
| 544 | |
| 545 | GrDrawTarget::StageBitfield enabledStages = 0; |
| 546 | if (NULL != paint.getTexture()) { |
| 547 | enabledStages |= 1; |
| 548 | } |
| 549 | fPathRenderer->drawPath(target, enabledStages, path, fill, translate); |
| 550 | } |
| 551 | |
bsalomon@google.com | d302f14 | 2011-03-03 13:54:13 +0000 | [diff] [blame] | 552 | void GrContext::drawPath(const GrPaint& paint, |
| 553 | const GrPath& path, |
| 554 | GrPathFill fill, |
| 555 | const GrPoint* translate) { |
| 556 | GrPath::Iter iter(path); |
| 557 | this->drawPath(paint, &iter, fill, translate); |
| 558 | } |
| 559 | |
| 560 | |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 561 | //////////////////////////////////////////////////////////////////////////////// |
| 562 | |
bsalomon@google.com | a7f84e1 | 2011-03-10 14:13:19 +0000 | [diff] [blame^] | 563 | void GrContext::flush(int flagsBitfield) { |
| 564 | if (kDiscard_FlushBit & flagsBitfield) { |
| 565 | fDrawBuffer->reset(); |
| 566 | } else { |
| 567 | flushDrawBuffer(); |
| 568 | } |
| 569 | |
| 570 | if (kForceCurrentRenderTarget_FlushBit & flagsBitfield) { |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 571 | fGpu->forceRenderTargetFlush(); |
| 572 | } |
| 573 | } |
| 574 | |
| 575 | void GrContext::flushText() { |
| 576 | if (kText_DrawCategory == fLastDrawCategory) { |
| 577 | flushDrawBuffer(); |
| 578 | } |
| 579 | } |
| 580 | |
| 581 | void GrContext::flushDrawBuffer() { |
| 582 | #if BATCH_RECT_TO_RECT || DEFER_TEXT_RENDERING |
| 583 | fDrawBuffer->playback(fGpu); |
| 584 | fDrawBuffer->reset(); |
| 585 | #endif |
| 586 | } |
| 587 | |
| 588 | bool GrContext::readPixels(int left, int top, int width, int height, |
| 589 | GrTexture::PixelConfig config, void* buffer) { |
| 590 | this->flush(true); |
| 591 | return fGpu->readPixels(left, top, width, height, config, buffer); |
| 592 | } |
| 593 | |
| 594 | void GrContext::writePixels(int left, int top, int width, int height, |
| 595 | GrTexture::PixelConfig config, const void* buffer, |
| 596 | size_t stride) { |
| 597 | |
| 598 | // TODO: when underlying api has a direct way to do this we should use it |
| 599 | // (e.g. glDrawPixels on desktop GL). |
| 600 | |
| 601 | const GrGpu::TextureDesc desc = { |
| 602 | 0, GrGpu::kNone_AALevel, width, height, config |
| 603 | }; |
| 604 | GrTexture* texture = fGpu->createTexture(desc, buffer, stride); |
| 605 | if (NULL == texture) { |
| 606 | return; |
| 607 | } |
| 608 | |
| 609 | this->flush(true); |
| 610 | |
| 611 | GrAutoUnref aur(texture); |
| 612 | GrDrawTarget::AutoStateRestore asr(fGpu); |
| 613 | |
| 614 | GrMatrix matrix; |
| 615 | matrix.setTranslate(GrIntToScalar(left), GrIntToScalar(top)); |
| 616 | fGpu->setViewMatrix(matrix); |
| 617 | |
| 618 | fGpu->disableState(GrDrawTarget::kClip_StateBit); |
| 619 | fGpu->setAlpha(0xFF); |
| 620 | fGpu->setBlendFunc(kOne_BlendCoeff, |
| 621 | kZero_BlendCoeff); |
| 622 | fGpu->setTexture(0, texture); |
| 623 | |
| 624 | GrSamplerState sampler; |
| 625 | sampler.setClampNoFilter(); |
| 626 | matrix.setScale(GR_Scalar1 / width, GR_Scalar1 / height); |
| 627 | sampler.setMatrix(matrix); |
| 628 | fGpu->setSamplerState(0, sampler); |
| 629 | |
| 630 | GrVertexLayout layout = GrDrawTarget::StagePosAsTexCoordVertexLayoutBit(0); |
| 631 | static const int VCOUNT = 4; |
| 632 | |
| 633 | GrDrawTarget::AutoReleaseGeometry geo(fGpu, layout, VCOUNT, 0); |
| 634 | if (!geo.succeeded()) { |
| 635 | return; |
| 636 | } |
| 637 | ((GrPoint*)geo.vertices())->setIRectFan(0, 0, width, height); |
| 638 | fGpu->drawNonIndexed(kTriangleFan_PrimitiveType, 0, VCOUNT); |
| 639 | } |
| 640 | //////////////////////////////////////////////////////////////////////////////// |
| 641 | |
| 642 | void GrContext::SetPaint(const GrPaint& paint, GrDrawTarget* target) { |
| 643 | target->setTexture(0, paint.getTexture()); |
| 644 | target->setSamplerState(0, paint.fSampler); |
| 645 | target->setColor(paint.fColor); |
| 646 | |
| 647 | if (paint.fDither) { |
| 648 | target->enableState(GrDrawTarget::kDither_StateBit); |
| 649 | } else { |
| 650 | target->disableState(GrDrawTarget::kDither_StateBit); |
| 651 | } |
| 652 | if (paint.fAntiAlias) { |
| 653 | target->enableState(GrDrawTarget::kAntialias_StateBit); |
| 654 | } else { |
| 655 | target->disableState(GrDrawTarget::kAntialias_StateBit); |
| 656 | } |
| 657 | target->setBlendFunc(paint.fSrcBlendCoeff, paint.fDstBlendCoeff); |
| 658 | } |
| 659 | |
bsalomon@google.com | de6ac2d | 2011-02-25 21:50:42 +0000 | [diff] [blame] | 660 | GrDrawTarget* GrContext::prepareToDraw(const GrPaint& paint, |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 661 | DrawCategory category) { |
| 662 | if (category != fLastDrawCategory) { |
| 663 | flushDrawBuffer(); |
| 664 | fLastDrawCategory = category; |
| 665 | } |
| 666 | SetPaint(paint, fGpu); |
| 667 | GrDrawTarget* target = fGpu; |
| 668 | switch (category) { |
| 669 | case kText_DrawCategory: |
| 670 | #if DEFER_TEXT_RENDERING |
| 671 | target = fDrawBuffer; |
| 672 | fDrawBuffer->initializeDrawStateAndClip(*fGpu); |
| 673 | #else |
| 674 | target = fGpu; |
| 675 | #endif |
| 676 | break; |
| 677 | case kUnbuffered_DrawCategory: |
| 678 | target = fGpu; |
| 679 | break; |
| 680 | case kBuffered_DrawCategory: |
| 681 | target = fDrawBuffer; |
| 682 | fDrawBuffer->initializeDrawStateAndClip(*fGpu); |
| 683 | break; |
| 684 | } |
| 685 | return target; |
| 686 | } |
| 687 | |
| 688 | //////////////////////////////////////////////////////////////////////////////// |
| 689 | |
| 690 | void GrContext::resetContext() { |
bsalomon@google.com | a7f84e1 | 2011-03-10 14:13:19 +0000 | [diff] [blame^] | 691 | fGpu->markContextDirty(); |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 692 | } |
| 693 | |
| 694 | void GrContext::setRenderTarget(GrRenderTarget* target) { |
| 695 | flush(false); |
| 696 | fGpu->setRenderTarget(target); |
| 697 | } |
| 698 | |
| 699 | GrRenderTarget* GrContext::getRenderTarget() { |
| 700 | return fGpu->getRenderTarget(); |
| 701 | } |
| 702 | |
| 703 | const GrRenderTarget* GrContext::getRenderTarget() const { |
| 704 | return fGpu->getRenderTarget(); |
| 705 | } |
| 706 | |
| 707 | const GrMatrix& GrContext::getMatrix() const { |
| 708 | return fGpu->getViewMatrix(); |
| 709 | } |
| 710 | |
| 711 | void GrContext::setMatrix(const GrMatrix& m) { |
| 712 | fGpu->setViewMatrix(m); |
| 713 | } |
| 714 | |
| 715 | void GrContext::concatMatrix(const GrMatrix& m) const { |
| 716 | fGpu->preConcatViewMatrix(m); |
| 717 | } |
| 718 | |
| 719 | static inline intptr_t setOrClear(intptr_t bits, int shift, intptr_t pred) { |
| 720 | intptr_t mask = 1 << shift; |
| 721 | if (pred) { |
| 722 | bits |= mask; |
| 723 | } else { |
| 724 | bits &= ~mask; |
| 725 | } |
| 726 | return bits; |
| 727 | } |
| 728 | |
| 729 | void GrContext::resetStats() { |
| 730 | fGpu->resetStats(); |
| 731 | } |
| 732 | |
| 733 | const GrGpu::Stats& GrContext::getStats() const { |
| 734 | return fGpu->getStats(); |
| 735 | } |
| 736 | |
| 737 | void GrContext::printStats() const { |
| 738 | fGpu->printStats(); |
| 739 | } |
| 740 | |
| 741 | GrContext::GrContext(GrGpu* gpu) { |
| 742 | fGpu = gpu; |
| 743 | fGpu->ref(); |
| 744 | fTextureCache = new GrTextureCache(MAX_TEXTURE_CACHE_COUNT, |
| 745 | MAX_TEXTURE_CACHE_BYTES); |
| 746 | fFontCache = new GrFontCache(fGpu); |
| 747 | |
| 748 | fLastDrawCategory = kUnbuffered_DrawCategory; |
| 749 | |
| 750 | #if DEFER_TEXT_RENDERING || BATCH_RECT_TO_RECT |
bsalomon@google.com | de6ac2d | 2011-02-25 21:50:42 +0000 | [diff] [blame] | 751 | fDrawBufferVBAllocPool = |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 752 | new GrVertexBufferAllocPool(gpu, false, |
| 753 | DRAW_BUFFER_VBPOOL_BUFFER_SIZE, |
| 754 | DRAW_BUFFER_VBPOOL_PREALLOC_BUFFERS); |
bsalomon@google.com | de6ac2d | 2011-02-25 21:50:42 +0000 | [diff] [blame] | 755 | fDrawBufferIBAllocPool = |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 756 | new GrIndexBufferAllocPool(gpu, false, |
bsalomon@google.com | de6ac2d | 2011-02-25 21:50:42 +0000 | [diff] [blame] | 757 | DRAW_BUFFER_IBPOOL_BUFFER_SIZE, |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 758 | DRAW_BUFFER_IBPOOL_PREALLOC_BUFFERS); |
| 759 | |
| 760 | fDrawBuffer = new GrInOrderDrawBuffer(fDrawBufferVBAllocPool, |
| 761 | fDrawBufferIBAllocPool); |
| 762 | #else |
| 763 | fDrawBuffer = NULL; |
| 764 | fDrawBufferVBAllocPool = NULL; |
| 765 | fDrawBufferIBAllocPool = NULL; |
| 766 | #endif |
| 767 | |
| 768 | #if BATCH_RECT_TO_RECT |
| 769 | fDrawBuffer->setQuadIndexBuffer(this->getQuadIndexBuffer()); |
| 770 | #endif |
bsalomon@google.com | d302f14 | 2011-03-03 13:54:13 +0000 | [diff] [blame] | 771 | fPathRenderer = new GrDefaultPathRenderer(fGpu->supportsTwoSidedStencil(), |
| 772 | fGpu->supportsStencilWrapOps()); |
bsalomon@google.com | 27847de | 2011-02-22 20:59:41 +0000 | [diff] [blame] | 773 | } |
| 774 | |
| 775 | bool GrContext::finalizeTextureKey(GrTextureKey* key, |
| 776 | const GrSamplerState& sampler) const { |
| 777 | uint32_t bits = 0; |
| 778 | uint16_t width = key->width(); |
| 779 | uint16_t height = key->height(); |
| 780 | |
| 781 | |
| 782 | if (!fGpu->npotTextureTileSupport()) { |
| 783 | bool isPow2 = GrIsPow2(width) && GrIsPow2(height); |
| 784 | |
| 785 | bool tiled = (sampler.getWrapX() != GrSamplerState::kClamp_WrapMode) || |
| 786 | (sampler.getWrapY() != GrSamplerState::kClamp_WrapMode); |
| 787 | |
| 788 | if (tiled && !isPow2) { |
| 789 | bits |= 1; |
| 790 | bits |= sampler.isFilter() ? 2 : 0; |
| 791 | } |
| 792 | } |
| 793 | key->finalize(bits); |
| 794 | return 0 != bits; |
| 795 | } |
| 796 | |
| 797 | GrDrawTarget* GrContext::getTextTarget(const GrPaint& paint) { |
| 798 | GrDrawTarget* target; |
| 799 | #if DEFER_TEXT_RENDERING |
| 800 | target = prepareToDraw(paint, kText_DrawCategory); |
| 801 | #else |
| 802 | target = prepareToDraw(paint, kUnbuffered_DrawCategory); |
| 803 | #endif |
| 804 | SetPaint(paint, target); |
| 805 | return target; |
| 806 | } |
| 807 | |
| 808 | const GrIndexBuffer* GrContext::getQuadIndexBuffer() const { |
| 809 | return fGpu->getQuadIndexBuffer(); |
| 810 | } |