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Side by Side Diff: src/gpu/GrTextContext.cpp

Issue 24018007: Add a GrCustomCoordsTextureEffect class (Closed) Base URL: https://skia.googlecode.com/svn/trunk
Patch Set: Created 7 years, 2 months ago
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1 /* 1 /*
2 * Copyright 2010 Google Inc. 2 * Copyright 2010 Google Inc.
3 * 3 *
4 * Use of this source code is governed by a BSD-style license that can be 4 * Use of this source code is governed by a BSD-style license that can be
5 * found in the LICENSE file. 5 * found in the LICENSE file.
6 */ 6 */
7 7
8 8
9 9
10 #include "GrTextContext.h" 10 #include "GrTextContext.h"
11 #include "GrAtlas.h" 11 #include "GrAtlas.h"
12 #include "GrContext.h" 12 #include "GrContext.h"
13 #include "GrDrawTarget.h" 13 #include "GrDrawTarget.h"
14 #include "GrFontScaler.h" 14 #include "GrFontScaler.h"
15 #include "GrIndexBuffer.h" 15 #include "GrIndexBuffer.h"
16 #include "GrTextStrike.h" 16 #include "GrTextStrike.h"
17 #include "GrTextStrike_impl.h" 17 #include "GrTextStrike_impl.h"
18 #include "SkPath.h" 18 #include "SkPath.h"
19 #include "SkStrokeRec.h" 19 #include "SkStrokeRec.h"
20 #include "effects/GrCustomCoordsTextureEffect.h"
20 21
21 static const int kGlyphCoordsAttributeIndex = 1; 22 static const int kGlyphCoordsAttributeIndex = 1;
22 23
23 void GrTextContext::flushGlyphs() { 24 void GrTextContext::flushGlyphs() {
24 if (NULL == fDrawTarget) { 25 if (NULL == fDrawTarget) {
25 return; 26 return;
26 } 27 }
27 28
28 GrDrawState* drawState = fDrawTarget->drawState(); 29 GrDrawState* drawState = fDrawTarget->drawState();
29 GrDrawState::AutoRestoreEffects are(drawState); 30 GrDrawState::AutoRestoreEffects are(drawState);
30 drawState->setFromPaint(fPaint, SkMatrix::I(), fContext->getRenderTarget()); 31 drawState->setFromPaint(fPaint, SkMatrix::I(), fContext->getRenderTarget());
31 32
32 if (fCurrVertex > 0) { 33 if (fCurrVertex > 0) {
33 // setup our sampler state for our text texture/atlas 34 // setup our sampler state for our text texture/atlas
34 SkASSERT(GrIsALIGN4(fCurrVertex)); 35 SkASSERT(GrIsALIGN4(fCurrVertex));
35 SkASSERT(fCurrTexture); 36 SkASSERT(fCurrTexture);
36 GrTextureParams params(SkShader::kRepeat_TileMode, GrTextureParams::kNon e_FilterMode); 37 GrTextureParams params(SkShader::kRepeat_TileMode, GrTextureParams::kNon e_FilterMode);
37 38
38 // This effect could be stored with one of the cache objects (atlas?) 39 // This effect could be stored with one of the cache objects (atlas?)
39 drawState->addCoverageEffect( 40 drawState->addCoverageEffect(
40 GrSimpleTextureEffect::CreateWithCustomCoords(fC urrTexture, params), 41 GrCustomCoordsTextureEffect::Create(fCurrTexture , params),
41 kGlyphCoordsAttributeIndex)->unref(); 42 kGlyphCoordsAttributeIndex)->unref();
42 43
43 if (!GrPixelConfigIsAlphaOnly(fCurrTexture->config())) { 44 if (!GrPixelConfigIsAlphaOnly(fCurrTexture->config())) {
44 if (kOne_GrBlendCoeff != fPaint.getSrcBlendCoeff() || 45 if (kOne_GrBlendCoeff != fPaint.getSrcBlendCoeff() ||
45 kISA_GrBlendCoeff != fPaint.getDstBlendCoeff() || 46 kISA_GrBlendCoeff != fPaint.getDstBlendCoeff() ||
46 fPaint.numColorStages()) { 47 fPaint.numColorStages()) {
47 GrPrintf("LCD Text will not draw correctly.\n"); 48 GrPrintf("LCD Text will not draw correctly.\n");
48 } 49 }
49 // setup blend so that we get mask * paintColor + (1-mask)*dstColor 50 // setup blend so that we get mask * paintColor + (1-mask)*dstColor
50 drawState->setBlendConstant(fPaint.getColor()); 51 drawState->setBlendConstant(fPaint.getColor());
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248 SkFixedToFloat(vx + width), 249 SkFixedToFloat(vx + width),
249 SkFixedToFloat(vy + height), 250 SkFixedToFloat(vy + height),
250 2 * sizeof(SkPoint)); 251 2 * sizeof(SkPoint));
251 fVertices[2*fCurrVertex+1].setRectFan(SkFixedToFloat(texture->normalizeFixed X(tx)), 252 fVertices[2*fCurrVertex+1].setRectFan(SkFixedToFloat(texture->normalizeFixed X(tx)),
252 SkFixedToFloat(texture->normalizeFixed Y(ty)), 253 SkFixedToFloat(texture->normalizeFixed Y(ty)),
253 SkFixedToFloat(texture->normalizeFixed X(tx + width)), 254 SkFixedToFloat(texture->normalizeFixed X(tx + width)),
254 SkFixedToFloat(texture->normalizeFixed Y(ty + height)), 255 SkFixedToFloat(texture->normalizeFixed Y(ty + height)),
255 2 * sizeof(SkPoint)); 256 2 * sizeof(SkPoint));
256 fCurrVertex += 4; 257 fCurrVertex += 4;
257 } 258 }
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