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