1 /*
2 * Copyright (C) 2015 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 #include "GlopBuilder.h"
17
18 #include "Caches.h"
19 #include "GlLayer.h"
20 #include "Glop.h"
21 #include "Layer.h"
22 #include "Matrix.h"
23 #include "Patch.h"
24 #include "PathCache.h"
25 #include "SkiaShader.h"
26 #include "Texture.h"
27 #include "VertexBuffer.h"
28 #include "renderstate/MeshState.h"
29 #include "renderstate/RenderState.h"
30 #include "utils/PaintUtils.h"
31
32 #include <GLES2/gl2.h>
33 #include <SkPaint.h>
34
35 #define DEBUG_GLOP_BUILDER 0
36
37 #if DEBUG_GLOP_BUILDER
38
39 #define TRIGGER_STAGE(stageFlag) \
40 LOG_ALWAYS_FATAL_IF((stageFlag)&mStageFlags, "Stage %d cannot be run twice", (stageFlag)); \
41 mStageFlags = static_cast<StageFlags>(mStageFlags | (stageFlag))
42
43 #define REQUIRE_STAGES(requiredFlags) \
44 LOG_ALWAYS_FATAL_IF((mStageFlags & (requiredFlags)) != (requiredFlags), \
45 "not prepared for current stage")
46
47 #else
48
49 #define TRIGGER_STAGE(stageFlag) ((void)0)
50 #define REQUIRE_STAGES(requiredFlags) ((void)0)
51
52 #endif
53
54 namespace android {
55 namespace uirenderer {
56
setUnitQuadTextureCoords(Rect uvs,TextureVertex * quadVertex)57 static void setUnitQuadTextureCoords(Rect uvs, TextureVertex* quadVertex) {
58 quadVertex[0] = {0, 0, uvs.left, uvs.top};
59 quadVertex[1] = {1, 0, uvs.right, uvs.top};
60 quadVertex[2] = {0, 1, uvs.left, uvs.bottom};
61 quadVertex[3] = {1, 1, uvs.right, uvs.bottom};
62 }
63
GlopBuilder(RenderState & renderState,Caches & caches,Glop * outGlop)64 GlopBuilder::GlopBuilder(RenderState& renderState, Caches& caches, Glop* outGlop)
65 : mRenderState(renderState), mCaches(caches), mShader(nullptr), mOutGlop(outGlop) {
66 mStageFlags = kInitialStage;
67 }
68
69 ////////////////////////////////////////////////////////////////////////////////
70 // Mesh
71 ////////////////////////////////////////////////////////////////////////////////
72
setMeshTexturedIndexedVbo(GLuint vbo,GLsizei elementCount)73 GlopBuilder& GlopBuilder::setMeshTexturedIndexedVbo(GLuint vbo, GLsizei elementCount) {
74 TRIGGER_STAGE(kMeshStage);
75
76 mOutGlop->mesh.primitiveMode = GL_TRIANGLES;
77 mOutGlop->mesh.indices = {mRenderState.meshState().getQuadListIBO(), nullptr};
78 mOutGlop->mesh.vertices = {vbo, VertexAttribFlags::TextureCoord,
79 nullptr, (const void*)kMeshTextureOffset,
80 nullptr, kTextureVertexStride};
81 mOutGlop->mesh.elementCount = elementCount;
82 return *this;
83 }
84
setMeshUnitQuad()85 GlopBuilder& GlopBuilder::setMeshUnitQuad() {
86 TRIGGER_STAGE(kMeshStage);
87
88 mOutGlop->mesh.primitiveMode = GL_TRIANGLE_STRIP;
89 mOutGlop->mesh.indices = {0, nullptr};
90 mOutGlop->mesh.vertices = {mRenderState.meshState().getUnitQuadVBO(),
91 VertexAttribFlags::None,
92 nullptr,
93 nullptr,
94 nullptr,
95 kTextureVertexStride};
96 mOutGlop->mesh.elementCount = 4;
97 return *this;
98 }
99
setMeshTexturedUnitQuad(const UvMapper * uvMapper)100 GlopBuilder& GlopBuilder::setMeshTexturedUnitQuad(const UvMapper* uvMapper) {
101 if (uvMapper) {
102 // can't use unit quad VBO, so build UV vertices manually
103 return setMeshTexturedUvQuad(uvMapper, Rect(1, 1));
104 }
105
106 TRIGGER_STAGE(kMeshStage);
107
108 mOutGlop->mesh.primitiveMode = GL_TRIANGLE_STRIP;
109 mOutGlop->mesh.indices = {0, nullptr};
110 mOutGlop->mesh.vertices = {mRenderState.meshState().getUnitQuadVBO(),
111 VertexAttribFlags::TextureCoord,
112 nullptr,
113 (const void*)kMeshTextureOffset,
114 nullptr,
115 kTextureVertexStride};
116 mOutGlop->mesh.elementCount = 4;
117 return *this;
118 }
119
setMeshTexturedUvQuad(const UvMapper * uvMapper,Rect uvs)120 GlopBuilder& GlopBuilder::setMeshTexturedUvQuad(const UvMapper* uvMapper, Rect uvs) {
121 TRIGGER_STAGE(kMeshStage);
122
123 if (CC_UNLIKELY(uvMapper)) {
124 uvMapper->map(uvs);
125 }
126 setUnitQuadTextureCoords(uvs, &mOutGlop->mesh.mappedVertices[0]);
127
128 const TextureVertex* textureVertex = mOutGlop->mesh.mappedVertices;
129 mOutGlop->mesh.primitiveMode = GL_TRIANGLE_STRIP;
130 mOutGlop->mesh.indices = {0, nullptr};
131 mOutGlop->mesh.vertices = {0,
132 VertexAttribFlags::TextureCoord,
133 &textureVertex[0].x,
134 &textureVertex[0].u,
135 nullptr,
136 kTextureVertexStride};
137 mOutGlop->mesh.elementCount = 4;
138 return *this;
139 }
140
setMeshIndexedQuads(Vertex * vertexData,int quadCount)141 GlopBuilder& GlopBuilder::setMeshIndexedQuads(Vertex* vertexData, int quadCount) {
142 TRIGGER_STAGE(kMeshStage);
143
144 mOutGlop->mesh.primitiveMode = GL_TRIANGLES;
145 mOutGlop->mesh.indices = {mRenderState.meshState().getQuadListIBO(), nullptr};
146 mOutGlop->mesh.vertices = {
147 0, VertexAttribFlags::None, vertexData, nullptr, nullptr, kVertexStride};
148 mOutGlop->mesh.elementCount = 6 * quadCount;
149 return *this;
150 }
151
setMeshTexturedIndexedQuads(TextureVertex * vertexData,int elementCount)152 GlopBuilder& GlopBuilder::setMeshTexturedIndexedQuads(TextureVertex* vertexData, int elementCount) {
153 TRIGGER_STAGE(kMeshStage);
154
155 mOutGlop->mesh.primitiveMode = GL_TRIANGLES;
156 mOutGlop->mesh.indices = {mRenderState.meshState().getQuadListIBO(), nullptr};
157 mOutGlop->mesh.vertices = {0,
158 VertexAttribFlags::TextureCoord,
159 &vertexData[0].x,
160 &vertexData[0].u,
161 nullptr,
162 kTextureVertexStride};
163 mOutGlop->mesh.elementCount = elementCount;
164 return *this;
165 }
166
setMeshColoredTexturedMesh(ColorTextureVertex * vertexData,int elementCount)167 GlopBuilder& GlopBuilder::setMeshColoredTexturedMesh(ColorTextureVertex* vertexData,
168 int elementCount) {
169 TRIGGER_STAGE(kMeshStage);
170
171 mOutGlop->mesh.primitiveMode = GL_TRIANGLES;
172 mOutGlop->mesh.indices = {0, nullptr};
173 mOutGlop->mesh.vertices = {0,
174 VertexAttribFlags::TextureCoord | VertexAttribFlags::Color,
175 &vertexData[0].x,
176 &vertexData[0].u,
177 &vertexData[0].r,
178 kColorTextureVertexStride};
179 mOutGlop->mesh.elementCount = elementCount;
180 return *this;
181 }
182
setMeshVertexBuffer(const VertexBuffer & vertexBuffer)183 GlopBuilder& GlopBuilder::setMeshVertexBuffer(const VertexBuffer& vertexBuffer) {
184 TRIGGER_STAGE(kMeshStage);
185
186 const VertexBuffer::MeshFeatureFlags flags = vertexBuffer.getMeshFeatureFlags();
187
188 bool alphaVertex = flags & VertexBuffer::kAlpha;
189 bool indices = flags & VertexBuffer::kIndices;
190
191 mOutGlop->mesh.primitiveMode = GL_TRIANGLE_STRIP;
192 mOutGlop->mesh.indices = {0, vertexBuffer.getIndices()};
193 mOutGlop->mesh.vertices = {0,
194 alphaVertex ? VertexAttribFlags::Alpha : VertexAttribFlags::None,
195 vertexBuffer.getBuffer(),
196 nullptr,
197 nullptr,
198 alphaVertex ? kAlphaVertexStride : kVertexStride};
199 mOutGlop->mesh.elementCount =
200 indices ? vertexBuffer.getIndexCount() : vertexBuffer.getVertexCount();
201 mOutGlop->mesh.vertexCount = vertexBuffer.getVertexCount(); // used for glDrawRangeElements()
202 return *this;
203 }
204
setMeshPatchQuads(const Patch & patch)205 GlopBuilder& GlopBuilder::setMeshPatchQuads(const Patch& patch) {
206 TRIGGER_STAGE(kMeshStage);
207
208 mOutGlop->mesh.primitiveMode = GL_TRIANGLES;
209 mOutGlop->mesh.indices = {mRenderState.meshState().getQuadListIBO(), nullptr};
210 mOutGlop->mesh.vertices = {mCaches.patchCache.getMeshBuffer(),
211 VertexAttribFlags::TextureCoord,
212 (void*)patch.positionOffset,
213 (void*)patch.textureOffset,
214 nullptr,
215 kTextureVertexStride};
216 mOutGlop->mesh.elementCount = patch.indexCount;
217 return *this;
218 }
219
220 ////////////////////////////////////////////////////////////////////////////////
221 // Fill
222 ////////////////////////////////////////////////////////////////////////////////
223
setFill(int color,float alphaScale,SkBlendMode mode,Blend::ModeOrderSwap modeUsage,const SkShader * shader,const SkColorFilter * colorFilter)224 void GlopBuilder::setFill(int color, float alphaScale, SkBlendMode mode,
225 Blend::ModeOrderSwap modeUsage, const SkShader* shader,
226 const SkColorFilter* colorFilter) {
227 if (mode != SkBlendMode::kClear) {
228 if (!shader) {
229 FloatColor c;
230 c.set(color);
231 c.r *= alphaScale;
232 c.g *= alphaScale;
233 c.b *= alphaScale;
234 c.a *= alphaScale;
235 mOutGlop->fill.color = c;
236 } else {
237 float alpha = (SkColorGetA(color) / 255.0f) * alphaScale;
238 mOutGlop->fill.color = {1, 1, 1, alpha};
239 }
240 } else {
241 mOutGlop->fill.color = {0, 0, 0, 1};
242 }
243
244 mOutGlop->blend = {GL_ZERO, GL_ZERO};
245 if (mOutGlop->fill.color.a < 1.0f ||
246 (mOutGlop->mesh.vertices.attribFlags & VertexAttribFlags::Alpha) ||
247 (mOutGlop->fill.texture.texture && mOutGlop->fill.texture.texture->blend) ||
248 mOutGlop->roundRectClipState || PaintUtils::isBlendedShader(shader) ||
249 PaintUtils::isBlendedColorFilter(colorFilter) || mode != SkBlendMode::kSrcOver) {
250 if (CC_LIKELY(mode <= SkBlendMode::kScreen)) {
251 Blend::getFactors(mode, modeUsage, &mOutGlop->blend.src, &mOutGlop->blend.dst);
252 } else {
253 // These blend modes are not supported by OpenGL directly and have
254 // to be implemented using shaders. Since the shader will perform
255 // the blending, don't enable GL blending off here
256 // If the blend mode cannot be implemented using shaders, fall
257 // back to the default SrcOver blend mode instead
258 if (CC_UNLIKELY(mCaches.extensions().hasFramebufferFetch())) {
259 mDescription.framebufferMode = mode;
260 mDescription.swapSrcDst = (modeUsage == Blend::ModeOrderSwap::Swap);
261 // blending in shader, don't enable
262 } else {
263 // unsupported
264 Blend::getFactors(SkBlendMode::kSrcOver, modeUsage, &mOutGlop->blend.src,
265 &mOutGlop->blend.dst);
266 }
267 }
268 }
269 mShader = shader; // shader resolved in ::build()
270
271 if (colorFilter) {
272 SkColor color;
273 SkBlendMode bmode;
274 SkScalar srcColorMatrix[20];
275 if (colorFilter->asColorMode(&color, &bmode)) {
276 mOutGlop->fill.filterMode = mDescription.colorOp =
277 ProgramDescription::ColorFilterMode::Blend;
278 mDescription.colorMode = bmode;
279 mOutGlop->fill.filter.color.set(color);
280 } else if (colorFilter->asColorMatrix(srcColorMatrix)) {
281 mOutGlop->fill.filterMode = mDescription.colorOp =
282 ProgramDescription::ColorFilterMode::Matrix;
283
284 float* colorMatrix = mOutGlop->fill.filter.matrix.matrix;
285 memcpy(colorMatrix, srcColorMatrix, 4 * sizeof(float));
286 memcpy(&colorMatrix[4], &srcColorMatrix[5], 4 * sizeof(float));
287 memcpy(&colorMatrix[8], &srcColorMatrix[10], 4 * sizeof(float));
288 memcpy(&colorMatrix[12], &srcColorMatrix[15], 4 * sizeof(float));
289
290 // Skia uses the range [0..255] for the addition vector, but we need
291 // the [0..1] range to apply the vector in GLSL
292 float* colorVector = mOutGlop->fill.filter.matrix.vector;
293 colorVector[0] = EOCF(srcColorMatrix[4] / 255.0f);
294 colorVector[1] = EOCF(srcColorMatrix[9] / 255.0f);
295 colorVector[2] = EOCF(srcColorMatrix[14] / 255.0f);
296 colorVector[3] = srcColorMatrix[19] / 255.0f; // alpha is linear
297 } else {
298 ALOGE("unsupported ColorFilter type: %s", colorFilter->getTypeName());
299 LOG_ALWAYS_FATAL("unsupported ColorFilter");
300 }
301 } else {
302 mOutGlop->fill.filterMode = ProgramDescription::ColorFilterMode::None;
303 }
304 }
305
setFillTexturePaint(Texture & texture,const int textureFillFlags,const SkPaint * paint,float alphaScale)306 GlopBuilder& GlopBuilder::setFillTexturePaint(Texture& texture, const int textureFillFlags,
307 const SkPaint* paint, float alphaScale) {
308 TRIGGER_STAGE(kFillStage);
309 REQUIRE_STAGES(kMeshStage | kRoundRectClipStage);
310
311 GLenum filter = (textureFillFlags & TextureFillFlags::ForceFilter)
312 ? GL_LINEAR
313 : PaintUtils::getFilter(paint);
314 mOutGlop->fill.texture = {&texture, filter, GL_CLAMP_TO_EDGE, nullptr};
315
316 if (paint) {
317 int color = paint->getColor();
318 SkShader* shader = paint->getShader();
319
320 if (!(textureFillFlags & TextureFillFlags::IsAlphaMaskTexture)) {
321 // Texture defines color, so disable shaders, and reset all non-alpha color channels
322 color |= 0x00FFFFFF;
323 shader = nullptr;
324 }
325 setFill(color, alphaScale, paint->getBlendMode(), Blend::ModeOrderSwap::NoSwap, shader,
326 paint->getColorFilter());
327 } else {
328 mOutGlop->fill.color = {alphaScale, alphaScale, alphaScale, alphaScale};
329
330 if (alphaScale < 1.0f || (mOutGlop->mesh.vertices.attribFlags & VertexAttribFlags::Alpha) ||
331 texture.blend || mOutGlop->roundRectClipState) {
332 Blend::getFactors(SkBlendMode::kSrcOver, Blend::ModeOrderSwap::NoSwap,
333 &mOutGlop->blend.src, &mOutGlop->blend.dst);
334 } else {
335 mOutGlop->blend = {GL_ZERO, GL_ZERO};
336 }
337 }
338
339 if (textureFillFlags & TextureFillFlags::IsAlphaMaskTexture) {
340 mDescription.modulate = mOutGlop->fill.color.isNotBlack();
341 mDescription.hasAlpha8Texture = true;
342 } else {
343 mDescription.modulate = mOutGlop->fill.color.a < 1.0f;
344 }
345 return *this;
346 }
347
setFillPaint(const SkPaint & paint,float alphaScale,bool shadowInterp)348 GlopBuilder& GlopBuilder::setFillPaint(const SkPaint& paint, float alphaScale, bool shadowInterp) {
349 TRIGGER_STAGE(kFillStage);
350 REQUIRE_STAGES(kMeshStage | kRoundRectClipStage);
351
352 if (CC_LIKELY(!shadowInterp)) {
353 mOutGlop->fill.texture = {nullptr, GL_INVALID_ENUM, GL_INVALID_ENUM, nullptr};
354 } else {
355 mOutGlop->fill.texture = {mCaches.textureState().getShadowLutTexture(), GL_INVALID_ENUM,
356 GL_INVALID_ENUM, nullptr};
357 }
358
359 setFill(paint.getColor(), alphaScale, paint.getBlendMode(), Blend::ModeOrderSwap::NoSwap,
360 paint.getShader(), paint.getColorFilter());
361 mDescription.useShadowAlphaInterp = shadowInterp;
362 mDescription.modulate = mOutGlop->fill.color.a < 1.0f;
363 return *this;
364 }
365
setFillPathTexturePaint(PathTexture & texture,const SkPaint & paint,float alphaScale)366 GlopBuilder& GlopBuilder::setFillPathTexturePaint(PathTexture& texture, const SkPaint& paint,
367 float alphaScale) {
368 TRIGGER_STAGE(kFillStage);
369 REQUIRE_STAGES(kMeshStage | kRoundRectClipStage);
370
371 // specify invalid filter/clamp, since these are always static for PathTextures
372 mOutGlop->fill.texture = {&texture, GL_INVALID_ENUM, GL_INVALID_ENUM, nullptr};
373
374 setFill(paint.getColor(), alphaScale, paint.getBlendMode(), Blend::ModeOrderSwap::NoSwap,
375 paint.getShader(), paint.getColorFilter());
376
377 mDescription.hasAlpha8Texture = true;
378 mDescription.modulate = mOutGlop->fill.color.isNotBlack();
379 return *this;
380 }
381
setFillShadowTexturePaint(ShadowTexture & texture,int shadowColor,const SkPaint & paint,float alphaScale)382 GlopBuilder& GlopBuilder::setFillShadowTexturePaint(ShadowTexture& texture, int shadowColor,
383 const SkPaint& paint, float alphaScale) {
384 TRIGGER_STAGE(kFillStage);
385 REQUIRE_STAGES(kMeshStage | kRoundRectClipStage);
386
387 // specify invalid filter/clamp, since these are always static for ShadowTextures
388 mOutGlop->fill.texture = {&texture, GL_INVALID_ENUM, GL_INVALID_ENUM, nullptr};
389
390 const int ALPHA_BITMASK = SK_ColorBLACK;
391 const int COLOR_BITMASK = ~ALPHA_BITMASK;
392 if ((shadowColor & ALPHA_BITMASK) == ALPHA_BITMASK) {
393 // shadow color is fully opaque: override its alpha with that of paint
394 shadowColor &= paint.getColor() | COLOR_BITMASK;
395 }
396
397 setFill(shadowColor, alphaScale, paint.getBlendMode(), Blend::ModeOrderSwap::NoSwap,
398 paint.getShader(), paint.getColorFilter());
399
400 mDescription.hasAlpha8Texture = true;
401 mDescription.modulate = mOutGlop->fill.color.isNotBlack();
402 return *this;
403 }
404
setFillBlack()405 GlopBuilder& GlopBuilder::setFillBlack() {
406 TRIGGER_STAGE(kFillStage);
407 REQUIRE_STAGES(kMeshStage | kRoundRectClipStage);
408
409 mOutGlop->fill.texture = {nullptr, GL_INVALID_ENUM, GL_INVALID_ENUM, nullptr};
410 setFill(SK_ColorBLACK, 1.0f, SkBlendMode::kSrcOver, Blend::ModeOrderSwap::NoSwap, nullptr,
411 nullptr);
412 return *this;
413 }
414
setFillClear()415 GlopBuilder& GlopBuilder::setFillClear() {
416 TRIGGER_STAGE(kFillStage);
417 REQUIRE_STAGES(kMeshStage | kRoundRectClipStage);
418
419 mOutGlop->fill.texture = {nullptr, GL_INVALID_ENUM, GL_INVALID_ENUM, nullptr};
420 setFill(SK_ColorBLACK, 1.0f, SkBlendMode::kClear, Blend::ModeOrderSwap::NoSwap, nullptr,
421 nullptr);
422 return *this;
423 }
424
setFillLayer(Texture & texture,const SkColorFilter * colorFilter,float alpha,SkBlendMode mode,Blend::ModeOrderSwap modeUsage)425 GlopBuilder& GlopBuilder::setFillLayer(Texture& texture, const SkColorFilter* colorFilter,
426 float alpha, SkBlendMode mode,
427 Blend::ModeOrderSwap modeUsage) {
428 TRIGGER_STAGE(kFillStage);
429 REQUIRE_STAGES(kMeshStage | kRoundRectClipStage);
430
431 mOutGlop->fill.texture = {&texture, GL_LINEAR, GL_CLAMP_TO_EDGE, nullptr};
432
433 setFill(SK_ColorWHITE, alpha, mode, modeUsage, nullptr, colorFilter);
434
435 mDescription.modulate = mOutGlop->fill.color.a < 1.0f;
436 return *this;
437 }
438
setFillTextureLayer(GlLayer & layer,float alpha)439 GlopBuilder& GlopBuilder::setFillTextureLayer(GlLayer& layer, float alpha) {
440 TRIGGER_STAGE(kFillStage);
441 REQUIRE_STAGES(kMeshStage | kRoundRectClipStage);
442
443 mOutGlop->fill.texture = {&(layer.getTexture()), GL_LINEAR, GL_CLAMP_TO_EDGE,
444 &layer.getTexTransform()};
445
446 setFill(SK_ColorWHITE, alpha, layer.getMode(), Blend::ModeOrderSwap::NoSwap, nullptr,
447 layer.getColorFilter());
448
449 mDescription.modulate = mOutGlop->fill.color.a < 1.0f;
450 mDescription.hasTextureTransform = true;
451 return *this;
452 }
453
setFillExternalTexture(Texture & texture,Matrix4 & textureTransform,bool requiresFilter)454 GlopBuilder& GlopBuilder::setFillExternalTexture(Texture& texture, Matrix4& textureTransform,
455 bool requiresFilter) {
456 TRIGGER_STAGE(kFillStage);
457 REQUIRE_STAGES(kMeshStage | kRoundRectClipStage);
458
459 GLenum filter = requiresFilter ? GL_LINEAR : GL_NEAREST;
460 mOutGlop->fill.texture = {&texture, filter, GL_CLAMP_TO_EDGE, &textureTransform};
461
462 setFill(SK_ColorWHITE, 1.0f, SkBlendMode::kSrc, Blend::ModeOrderSwap::NoSwap, nullptr, nullptr);
463
464 mDescription.modulate = mOutGlop->fill.color.a < 1.0f;
465 mDescription.hasTextureTransform = true;
466 return *this;
467 }
468
setGammaCorrection(bool enabled)469 GlopBuilder& GlopBuilder::setGammaCorrection(bool enabled) {
470 REQUIRE_STAGES(kFillStage);
471
472 mDescription.hasGammaCorrection = enabled;
473 return *this;
474 }
475
476 ////////////////////////////////////////////////////////////////////////////////
477 // Transform
478 ////////////////////////////////////////////////////////////////////////////////
479
setTransform(const Matrix4 & canvas,const int transformFlags)480 GlopBuilder& GlopBuilder::setTransform(const Matrix4& canvas, const int transformFlags) {
481 TRIGGER_STAGE(kTransformStage);
482
483 mOutGlop->transform.canvas = canvas;
484 mOutGlop->transform.transformFlags = transformFlags;
485 return *this;
486 }
487
488 ////////////////////////////////////////////////////////////////////////////////
489 // ModelView
490 ////////////////////////////////////////////////////////////////////////////////
491
setModelViewMapUnitToRect(const Rect destination)492 GlopBuilder& GlopBuilder::setModelViewMapUnitToRect(const Rect destination) {
493 TRIGGER_STAGE(kModelViewStage);
494
495 mOutGlop->transform.modelView.loadTranslate(destination.left, destination.top, 0.0f);
496 mOutGlop->transform.modelView.scale(destination.getWidth(), destination.getHeight(), 1.0f);
497 return *this;
498 }
499
setModelViewMapUnitToRectSnap(const Rect destination)500 GlopBuilder& GlopBuilder::setModelViewMapUnitToRectSnap(const Rect destination) {
501 TRIGGER_STAGE(kModelViewStage);
502 REQUIRE_STAGES(kTransformStage | kFillStage);
503
504 float left = destination.left;
505 float top = destination.top;
506
507 const Matrix4& meshTransform = mOutGlop->transform.meshTransform();
508 if (CC_LIKELY(meshTransform.isPureTranslate())) {
509 // snap by adjusting the model view matrix
510 const float translateX = meshTransform.getTranslateX();
511 const float translateY = meshTransform.getTranslateY();
512
513 left = (int)floorf(left + translateX + 0.5f) - translateX;
514 top = (int)floorf(top + translateY + 0.5f) - translateY;
515 mOutGlop->fill.texture.filter = GL_NEAREST;
516 }
517
518 mOutGlop->transform.modelView.loadTranslate(left, top, 0.0f);
519 mOutGlop->transform.modelView.scale(destination.getWidth(), destination.getHeight(), 1.0f);
520 return *this;
521 }
522
setModelViewOffsetRect(float offsetX,float offsetY,const Rect source)523 GlopBuilder& GlopBuilder::setModelViewOffsetRect(float offsetX, float offsetY, const Rect source) {
524 TRIGGER_STAGE(kModelViewStage);
525
526 mOutGlop->transform.modelView.loadTranslate(offsetX, offsetY, 0.0f);
527 return *this;
528 }
529
setModelViewOffsetRectSnap(float offsetX,float offsetY,const Rect source)530 GlopBuilder& GlopBuilder::setModelViewOffsetRectSnap(float offsetX, float offsetY,
531 const Rect source) {
532 TRIGGER_STAGE(kModelViewStage);
533 REQUIRE_STAGES(kTransformStage | kFillStage);
534
535 const Matrix4& meshTransform = mOutGlop->transform.meshTransform();
536 if (CC_LIKELY(meshTransform.isPureTranslate())) {
537 // snap by adjusting the model view matrix
538 const float translateX = meshTransform.getTranslateX();
539 const float translateY = meshTransform.getTranslateY();
540
541 offsetX = (int)floorf(offsetX + translateX + source.left + 0.5f) - translateX - source.left;
542 offsetY = (int)floorf(offsetY + translateY + source.top + 0.5f) - translateY - source.top;
543 mOutGlop->fill.texture.filter = GL_NEAREST;
544 }
545
546 mOutGlop->transform.modelView.loadTranslate(offsetX, offsetY, 0.0f);
547 return *this;
548 }
549
550 ////////////////////////////////////////////////////////////////////////////////
551 // RoundRectClip
552 ////////////////////////////////////////////////////////////////////////////////
553
setRoundRectClipState(const RoundRectClipState * roundRectClipState)554 GlopBuilder& GlopBuilder::setRoundRectClipState(const RoundRectClipState* roundRectClipState) {
555 TRIGGER_STAGE(kRoundRectClipStage);
556
557 mOutGlop->roundRectClipState = roundRectClipState;
558 mDescription.hasRoundRectClip = roundRectClipState != nullptr;
559 return *this;
560 }
561
562 ////////////////////////////////////////////////////////////////////////////////
563 // Build
564 ////////////////////////////////////////////////////////////////////////////////
565
verify(const ProgramDescription & description,const Glop & glop)566 void verify(const ProgramDescription& description, const Glop& glop) {
567 if (glop.fill.texture.texture != nullptr) {
568 LOG_ALWAYS_FATAL_IF(
569 ((description.hasTexture && description.hasExternalTexture) ||
570 (!description.hasTexture && !description.hasExternalTexture &&
571 !description.useShadowAlphaInterp) ||
572 ((glop.mesh.vertices.attribFlags & VertexAttribFlags::TextureCoord) == 0 &&
573 !description.useShadowAlphaInterp)),
574 "Texture %p, hT%d, hET %d, attribFlags %x", glop.fill.texture.texture,
575 description.hasTexture, description.hasExternalTexture,
576 glop.mesh.vertices.attribFlags);
577 } else {
578 LOG_ALWAYS_FATAL_IF(
579 (description.hasTexture || description.hasExternalTexture ||
580 ((glop.mesh.vertices.attribFlags & VertexAttribFlags::TextureCoord) != 0)),
581 "No texture, hT%d, hET %d, attribFlags %x", description.hasTexture,
582 description.hasExternalTexture, glop.mesh.vertices.attribFlags);
583 }
584
585 if ((glop.mesh.vertices.attribFlags & VertexAttribFlags::Alpha) &&
586 glop.mesh.vertices.bufferObject) {
587 LOG_ALWAYS_FATAL("VBO and alpha attributes are not currently compatible");
588 }
589
590 if (description.hasTextureTransform != (glop.fill.texture.textureTransform != nullptr)) {
591 LOG_ALWAYS_FATAL("Texture transform incorrectly specified");
592 }
593 }
594
build()595 void GlopBuilder::build() {
596 REQUIRE_STAGES(kAllStages);
597 if (mOutGlop->mesh.vertices.attribFlags & VertexAttribFlags::TextureCoord) {
598 Texture* texture = mOutGlop->fill.texture.texture;
599 if (texture->target() == GL_TEXTURE_2D) {
600 mDescription.hasTexture = true;
601 } else {
602 mDescription.hasExternalTexture = true;
603 }
604 mDescription.hasLinearTexture = texture->isLinear();
605 mDescription.hasColorSpaceConversion = texture->hasColorSpaceConversion();
606 mDescription.transferFunction = texture->getTransferFunctionType();
607 mDescription.hasTranslucentConversion = texture->blend;
608 }
609
610 mDescription.hasColors = mOutGlop->mesh.vertices.attribFlags & VertexAttribFlags::Color;
611 mDescription.hasVertexAlpha = mOutGlop->mesh.vertices.attribFlags & VertexAttribFlags::Alpha;
612
613 // Enable debug highlight when what we're about to draw is tested against
614 // the stencil buffer and if stencil highlight debugging is on
615 mDescription.hasDebugHighlight =
616 !Properties::debugOverdraw &&
617 Properties::debugStencilClip == StencilClipDebug::ShowHighlight &&
618 mRenderState.stencil().isTestEnabled();
619
620 // serialize shader info into ShaderData
621 GLuint textureUnit = mOutGlop->fill.texture.texture ? 1 : 0;
622
623 if (CC_LIKELY(!mShader)) {
624 mOutGlop->fill.skiaShaderData.skiaShaderType = kNone_SkiaShaderType;
625 } else {
626 Matrix4 shaderMatrix;
627 if (mOutGlop->transform.transformFlags & TransformFlags::MeshIgnoresCanvasTransform) {
628 // canvas level transform was built into the modelView and geometry,
629 // so the shader matrix must reverse this
630 shaderMatrix.loadInverse(mOutGlop->transform.canvas);
631 shaderMatrix.multiply(mOutGlop->transform.modelView);
632 } else {
633 shaderMatrix = mOutGlop->transform.modelView;
634 }
635 SkiaShader::store(mCaches, *mShader, shaderMatrix, &textureUnit, &mDescription,
636 &(mOutGlop->fill.skiaShaderData));
637 }
638
639 // duplicates ProgramCache's definition of color uniform presence
640 const bool singleColor = !mDescription.hasTexture && !mDescription.hasExternalTexture &&
641 !mDescription.hasGradient && !mDescription.hasBitmap;
642 mOutGlop->fill.colorEnabled = mDescription.modulate || singleColor;
643
644 verify(mDescription, *mOutGlop);
645
646 // Final step: populate program and map bounds into render target space
647 mOutGlop->fill.program = mCaches.programCache.get(mDescription);
648 }
649
dump(const Glop & glop)650 void GlopBuilder::dump(const Glop& glop) {
651 ALOGD("Glop Mesh");
652 const Glop::Mesh& mesh = glop.mesh;
653 ALOGD(" primitive mode: %d", mesh.primitiveMode);
654 ALOGD(" indices: buffer obj %x, indices %p", mesh.indices.bufferObject,
655 mesh.indices.indices);
656
657 const Glop::Mesh::Vertices& vertices = glop.mesh.vertices;
658 ALOGD(" vertices: buffer obj %x, flags %x, pos %p, tex %p, clr %p, stride %d",
659 vertices.bufferObject, vertices.attribFlags, vertices.position, vertices.texCoord,
660 vertices.color, vertices.stride);
661 ALOGD(" element count: %d", mesh.elementCount);
662
663 ALOGD("Glop Fill");
664 const Glop::Fill& fill = glop.fill;
665 ALOGD(" program %p", fill.program);
666 if (fill.texture.texture) {
667 ALOGD(" texture %p, target %d, filter %d, clamp %d", fill.texture.texture,
668 fill.texture.texture->target(), fill.texture.filter, fill.texture.clamp);
669 if (fill.texture.textureTransform) {
670 fill.texture.textureTransform->dump("texture transform");
671 }
672 }
673 ALOGD_IF(fill.colorEnabled, " color (argb) %.2f %.2f %.2f %.2f", fill.color.a, fill.color.r,
674 fill.color.g, fill.color.b);
675 ALOGD_IF(fill.filterMode != ProgramDescription::ColorFilterMode::None, " filterMode %d",
676 (int)fill.filterMode);
677 ALOGD_IF(fill.skiaShaderData.skiaShaderType, " shader type %d",
678 fill.skiaShaderData.skiaShaderType);
679
680 ALOGD("Glop transform");
681 glop.transform.modelView.dump(" model view");
682 glop.transform.canvas.dump(" canvas");
683 ALOGD_IF(glop.transform.transformFlags, " transformFlags 0x%x", glop.transform.transformFlags);
684
685 ALOGD_IF(glop.roundRectClipState, "Glop RRCS %p", glop.roundRectClipState);
686
687 ALOGD("Glop blend %d %d", glop.blend.src, glop.blend.dst);
688 }
689
690 } /* namespace uirenderer */
691 } /* namespace android */
692