Factor out GrAtlasTextBatch fromt GrAtlasTextContext
BUG=skia: Review URL: https://codereview.chromium.org/1458233003
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@ -210,6 +210,8 @@
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'<(skia_src_path)/gpu/batches/GrAAFillRectBatch.h',
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'<(skia_src_path)/gpu/batches/GrAAStrokeRectBatch.cpp',
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'<(skia_src_path)/gpu/batches/GrAAStrokeRectBatch.h',
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'<(skia_src_path)/gpu/batches/GrAtlasTextBatch.cpp',
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'<(skia_src_path)/gpu/batches/GrAtlasTextBatch.h',
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'<(skia_src_path)/gpu/batches/GrBatch.cpp',
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'<(skia_src_path)/gpu/batches/GrBatch.h',
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'<(skia_src_path)/gpu/batches/GrClearBatch.h',
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@ -6,15 +6,10 @@
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*/
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#include "GrAtlasTextContext.h"
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#include "GrBatchFontCache.h"
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#include "GrBatchFlushState.h"
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#include "GrBatchTest.h"
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#include "GrBlurUtils.h"
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#include "GrDefaultGeoProcFactory.h"
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#include "GrDrawContext.h"
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#include "GrDrawTarget.h"
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#include "GrFontScaler.h"
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#include "GrResourceProvider.h"
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#include "GrStrokeInfo.h"
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#include "GrTextBlobCache.h"
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#include "GrTexturePriv.h"
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@ -37,19 +32,9 @@
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#include "SkTextBlob.h"
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#include "SkTextMapStateProc.h"
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#include "batches/GrVertexBatch.h"
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#include "effects/GrBitmapTextGeoProc.h"
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#include "effects/GrDistanceFieldGeoProc.h"
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#include "batches/GrAtlasTextBatch.h"
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namespace {
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static const size_t kLCDTextVASize = sizeof(SkPoint) + sizeof(SkIPoint16);
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// position + local coord
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static const size_t kColorTextVASize = sizeof(SkPoint) + sizeof(SkIPoint16);
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static const size_t kGrayTextVASize = sizeof(SkPoint) + sizeof(GrColor) + sizeof(SkIPoint16);
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static const int kMinDFFontSize = 18;
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static const int kSmallDFFontSize = 32;
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static const int kSmallDFFontLimit = 32;
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@ -63,38 +48,6 @@ static const int kLargeDFFontLimit = 2 * kLargeDFFontSize;
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#endif
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SkDEBUGCODE(static const int kExpectedDistanceAdjustTableSize = 8;)
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static const int kDistanceAdjustLumShift = 5;
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static const int kVerticesPerGlyph = 4;
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static const int kIndicesPerGlyph = 6;
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static size_t get_vertex_stride(GrMaskFormat maskFormat) {
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switch (maskFormat) {
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case kA8_GrMaskFormat:
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return kGrayTextVASize;
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case kARGB_GrMaskFormat:
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return kColorTextVASize;
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default:
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return kLCDTextVASize;
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}
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}
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static size_t get_vertex_stride_df(GrMaskFormat maskFormat, bool useLCDText) {
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SkASSERT(maskFormat == kA8_GrMaskFormat);
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if (useLCDText) {
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return kLCDTextVASize;
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} else {
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return kGrayTextVASize;
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}
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}
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static inline GrColor skcolor_to_grcolor_nopremultiply(SkColor c) {
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unsigned r = SkColorGetR(c);
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unsigned g = SkColorGetG(c);
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unsigned b = SkColorGetB(c);
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return GrColorPackRGBA(r, g, b, 0xff);
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}
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};
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GrAtlasTextContext::GrAtlasTextContext(GrContext* context, const SkSurfaceProps& surfaceProps)
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@ -102,7 +55,8 @@ GrAtlasTextContext::GrAtlasTextContext(GrContext* context, const SkSurfaceProps&
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, fDistanceAdjustTable(new DistanceAdjustTable) {
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// We overallocate vertices in our textblobs based on the assumption that A8 has the greatest
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// vertexStride
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static_assert(kGrayTextVASize >= kColorTextVASize && kGrayTextVASize >= kLCDTextVASize,
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static_assert(GrAtlasTextBatch::kGrayTextVASize >= GrAtlasTextBatch::kColorTextVASize &&
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GrAtlasTextBatch::kGrayTextVASize >= GrAtlasTextBatch::kLCDTextVASize,
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"vertex_attribute_changed");
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fCurrStrike = nullptr;
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fCache = context->getTextBlobCache();
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@ -402,7 +356,7 @@ void GrAtlasTextContext::drawTextBlob(GrDrawContext* dc, GrRenderTarget* rt,
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// but we'd have to clear the subrun information
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fCache->remove(cacheBlob);
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cacheBlob.reset(SkRef(fCache->createCachedBlob(blob, key, blurRec, skPaint,
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kGrayTextVASize)));
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GrAtlasTextBatch::kGrayTextVASize)));
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this->regenerateTextBlob(cacheBlob, skPaint, grPaint.getColor(), viewMatrix,
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blob, x, y, drawFilter, clipRect, rt, clip);
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} else {
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@ -430,9 +384,9 @@ void GrAtlasTextContext::drawTextBlob(GrDrawContext* dc, GrRenderTarget* rt,
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} else {
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if (canCache) {
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cacheBlob.reset(SkRef(fCache->createCachedBlob(blob, key, blurRec, skPaint,
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kGrayTextVASize)));
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GrAtlasTextBatch::kGrayTextVASize)));
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} else {
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cacheBlob.reset(fCache->createBlob(blob, kGrayTextVASize));
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cacheBlob.reset(fCache->createBlob(blob, GrAtlasTextBatch::kGrayTextVASize));
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}
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this->regenerateTextBlob(cacheBlob, skPaint, grPaint.getColor(), viewMatrix,
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blob, x, y, drawFilter, clipRect, rt, clip);
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@ -689,7 +643,7 @@ inline GrAtlasTextBlob*
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GrAtlasTextContext::setupDFBlob(int glyphCount, const SkPaint& origPaint,
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const SkMatrix& viewMatrix, SkPaint* dfPaint,
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SkScalar* textRatio) {
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GrAtlasTextBlob* blob = fCache->createBlob(glyphCount, 1, kGrayTextVASize);
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GrAtlasTextBlob* blob = fCache->createBlob(glyphCount, 1, GrAtlasTextBatch::kGrayTextVASize);
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*dfPaint = origPaint;
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this->initDistanceFieldPaint(blob, dfPaint, textRatio, viewMatrix);
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@ -729,7 +683,7 @@ GrAtlasTextContext::createDrawTextBlob(GrRenderTarget* rt, const GrClip& clip,
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fallbackTxt, fallbackPos, 2, offset, clipRect);
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}
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} else {
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blob = fCache->createBlob(glyphCount, 1, kGrayTextVASize);
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blob = fCache->createBlob(glyphCount, 1, GrAtlasTextBatch::kGrayTextVASize);
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blob->fViewMatrix = viewMatrix;
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SkGlyphCache* cache = this->setupCache(&blob->fRuns[0], skPaint, &viewMatrix, false);
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@ -769,7 +723,7 @@ GrAtlasTextContext::createDrawPosTextBlob(GrRenderTarget* rt, const GrClip& clip
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clipRect);
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}
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} else {
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blob = fCache->createBlob(glyphCount, 1, kGrayTextVASize);
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blob = fCache->createBlob(glyphCount, 1, GrAtlasTextBatch::kGrayTextVASize);
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blob->fViewMatrix = viewMatrix;
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SkGlyphCache* cache = this->setupCache(&blob->fRuns[0], skPaint, &viewMatrix, false);
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this->internalDrawBMPPosText(blob, 0, cache, skPaint, paint.getColor(), viewMatrix, text,
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@ -1090,7 +1044,7 @@ void GrAtlasTextContext::bmpAppendGlyph(GrAtlasTextBlob* blob, int runIndex,
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run.fInitialized = true;
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size_t vertexStride = get_vertex_stride(format);
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size_t vertexStride = GrAtlasTextBatch::GetVertexStride(format);
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SkRect r;
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r.fLeft = SkIntToScalar(x);
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@ -1168,7 +1122,8 @@ bool GrAtlasTextContext::dfAppendGlyph(GrAtlasTextBlob* blob, int runIndex,
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SkASSERT(glyph->fMaskFormat == kA8_GrMaskFormat);
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subRun->fMaskFormat = kA8_GrMaskFormat;
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size_t vertexStride = get_vertex_stride_df(kA8_GrMaskFormat, subRun->fUseLCDText);
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size_t vertexStride = GrAtlasTextBatch::GetVertexStrideDf(kA8_GrMaskFormat,
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subRun->fUseLCDText);
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bool useColorVerts = !subRun->fUseLCDText;
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this->appendGlyphCommon(blob, &run, subRun, glyphRect, color, vertexStride, useColorVerts,
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@ -1251,645 +1206,9 @@ inline void GrAtlasTextContext::appendGlyphCommon(GrAtlasTextBlob* blob, Run* ru
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}
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subRun->fGlyphEndIndex++;
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subRun->fVertexEndIndex += vertexStride * kVerticesPerGlyph;
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subRun->fVertexEndIndex += vertexStride * GrAtlasTextBatch::kVerticesPerGlyph;
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}
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class TextBatch : public GrVertexBatch {
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public:
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DEFINE_BATCH_CLASS_ID
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typedef GrAtlasTextContext::DistanceAdjustTable DistanceAdjustTable;
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typedef GrAtlasTextBlob Blob;
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typedef Blob::Run Run;
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typedef Run::SubRunInfo TextInfo;
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struct Geometry {
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Blob* fBlob;
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int fRun;
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int fSubRun;
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GrColor fColor;
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SkScalar fTransX;
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SkScalar fTransY;
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};
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static TextBatch* CreateBitmap(GrMaskFormat maskFormat, int glyphCount,
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GrBatchFontCache* fontCache) {
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TextBatch* batch = new TextBatch;
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batch->fFontCache = fontCache;
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switch (maskFormat) {
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case kA8_GrMaskFormat:
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batch->fMaskType = kGrayscaleCoverageMask_MaskType;
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break;
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case kA565_GrMaskFormat:
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batch->fMaskType = kLCDCoverageMask_MaskType;
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break;
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case kARGB_GrMaskFormat:
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batch->fMaskType = kColorBitmapMask_MaskType;
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break;
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}
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batch->fBatch.fNumGlyphs = glyphCount;
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batch->fGeoCount = 1;
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batch->fFilteredColor = 0;
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batch->fFontCache = fontCache;
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batch->fUseBGR = false;
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return batch;
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}
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static TextBatch* CreateDistanceField(int glyphCount, GrBatchFontCache* fontCache,
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const DistanceAdjustTable* distanceAdjustTable,
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SkColor filteredColor, bool isLCD,
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bool useBGR) {
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TextBatch* batch = new TextBatch;
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batch->fFontCache = fontCache;
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batch->fMaskType = isLCD ? kLCDDistanceField_MaskType : kGrayscaleDistanceField_MaskType;
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batch->fDistanceAdjustTable.reset(SkRef(distanceAdjustTable));
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batch->fFilteredColor = filteredColor;
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batch->fUseBGR = useBGR;
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batch->fBatch.fNumGlyphs = glyphCount;
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batch->fGeoCount = 1;
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return batch;
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}
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// to avoid even the initial copy of the struct, we have a getter for the first item which
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// is used to seed the batch with its initial geometry. After seeding, the client should call
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// init() so the Batch can initialize itself
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Geometry& geometry() { return fGeoData[0]; }
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void init() {
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const Geometry& geo = fGeoData[0];
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fBatch.fColor = geo.fColor;
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fBatch.fViewMatrix = geo.fBlob->fViewMatrix;
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// We don't yet position distance field text on the cpu, so we have to map the vertex bounds
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// into device space
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const Run& run = geo.fBlob->fRuns[geo.fRun];
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if (run.fSubRunInfo[geo.fSubRun].fDrawAsDistanceFields) {
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SkRect bounds = run.fVertexBounds;
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fBatch.fViewMatrix.mapRect(&bounds);
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this->setBounds(bounds);
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} else {
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this->setBounds(run.fVertexBounds);
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}
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}
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const char* name() const override { return "TextBatch"; }
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SkString dumpInfo() const override {
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SkString str;
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for (int i = 0; i < fGeoCount; ++i) {
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str.appendf("%d: Color: 0x%08x Trans: %.2f,%.2f Runs: %d\n",
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i,
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fGeoData[i].fColor,
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fGeoData[i].fTransX,
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fGeoData[i].fTransY,
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fGeoData[i].fBlob->fRunCount);
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}
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str.append(INHERITED::dumpInfo());
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return str;
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}
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void getInvariantOutputColor(GrInitInvariantOutput* out) const override {
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if (kColorBitmapMask_MaskType == fMaskType) {
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out->setUnknownFourComponents();
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} else {
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out->setKnownFourComponents(fBatch.fColor);
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}
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}
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void getInvariantOutputCoverage(GrInitInvariantOutput* out) const override {
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switch (fMaskType) {
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case kGrayscaleDistanceField_MaskType:
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case kGrayscaleCoverageMask_MaskType:
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out->setUnknownSingleComponent();
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break;
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case kLCDCoverageMask_MaskType:
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case kLCDDistanceField_MaskType:
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out->setUnknownOpaqueFourComponents();
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out->setUsingLCDCoverage();
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break;
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case kColorBitmapMask_MaskType:
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out->setKnownSingleComponent(0xff);
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}
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}
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private:
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void initBatchTracker(const GrPipelineOptimizations& opt) override {
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// Handle any color overrides
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if (!opt.readsColor()) {
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fGeoData[0].fColor = GrColor_ILLEGAL;
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}
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opt.getOverrideColorIfSet(&fGeoData[0].fColor);
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// setup batch properties
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fBatch.fColorIgnored = !opt.readsColor();
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fBatch.fColor = fGeoData[0].fColor;
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fBatch.fUsesLocalCoords = opt.readsLocalCoords();
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fBatch.fCoverageIgnored = !opt.readsCoverage();
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}
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struct FlushInfo {
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SkAutoTUnref<const GrVertexBuffer> fVertexBuffer;
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SkAutoTUnref<const GrIndexBuffer> fIndexBuffer;
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int fGlyphsToFlush;
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int fVertexOffset;
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};
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void onPrepareDraws(Target* target) override {
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// if we have RGB, then we won't have any SkShaders so no need to use a localmatrix.
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// TODO actually only invert if we don't have RGBA
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SkMatrix localMatrix;
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if (this->usesLocalCoords() && !this->viewMatrix().invert(&localMatrix)) {
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SkDebugf("Cannot invert viewmatrix\n");
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return;
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}
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GrTexture* texture = fFontCache->getTexture(this->maskFormat());
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if (!texture) {
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SkDebugf("Could not allocate backing texture for atlas\n");
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return;
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}
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bool usesDistanceFields = this->usesDistanceFields();
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GrMaskFormat maskFormat = this->maskFormat();
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bool isLCD = this->isLCD();
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SkAutoTUnref<const GrGeometryProcessor> gp;
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if (usesDistanceFields) {
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gp.reset(this->setupDfProcessor(this->viewMatrix(), fFilteredColor, this->color(),
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texture));
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} else {
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GrTextureParams params(SkShader::kClamp_TileMode, GrTextureParams::kNone_FilterMode);
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gp.reset(GrBitmapTextGeoProc::Create(this->color(),
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texture,
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params,
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maskFormat,
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localMatrix,
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this->usesLocalCoords()));
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}
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FlushInfo flushInfo;
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flushInfo.fGlyphsToFlush = 0;
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size_t vertexStride = gp->getVertexStride();
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SkASSERT(vertexStride == (usesDistanceFields ?
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get_vertex_stride_df(maskFormat, isLCD) :
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get_vertex_stride(maskFormat)));
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target->initDraw(gp, this->pipeline());
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int glyphCount = this->numGlyphs();
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const GrVertexBuffer* vertexBuffer;
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void* vertices = target->makeVertexSpace(vertexStride,
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glyphCount * kVerticesPerGlyph,
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&vertexBuffer,
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&flushInfo.fVertexOffset);
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flushInfo.fVertexBuffer.reset(SkRef(vertexBuffer));
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flushInfo.fIndexBuffer.reset(target->resourceProvider()->refQuadIndexBuffer());
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if (!vertices || !flushInfo.fVertexBuffer) {
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SkDebugf("Could not allocate vertices\n");
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return;
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}
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unsigned char* currVertex = reinterpret_cast<unsigned char*>(vertices);
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// We cache some values to avoid going to the glyphcache for the same fontScaler twice
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// in a row
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const SkDescriptor* desc = nullptr;
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SkGlyphCache* cache = nullptr;
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GrFontScaler* scaler = nullptr;
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SkTypeface* typeface = nullptr;
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for (int i = 0; i < fGeoCount; i++) {
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Geometry& args = fGeoData[i];
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Blob* blob = args.fBlob;
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Run& run = blob->fRuns[args.fRun];
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TextInfo& info = run.fSubRunInfo[args.fSubRun];
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uint64_t currentAtlasGen = fFontCache->atlasGeneration(maskFormat);
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bool regenerateTextureCoords = info.fAtlasGeneration != currentAtlasGen ||
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info.fStrike->isAbandoned();
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bool regenerateColors;
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if (usesDistanceFields) {
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regenerateColors = !isLCD && run.fColor != args.fColor;
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} else {
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regenerateColors = kA8_GrMaskFormat == maskFormat && run.fColor != args.fColor;
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}
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bool regeneratePositions = args.fTransX != 0.f || args.fTransY != 0.f;
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int glyphCount = info.fGlyphEndIndex - info.fGlyphStartIndex;
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// We regenerate both texture coords and colors in the blob itself, and update the
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// atlas generation. If we don't end up purging any unused plots, we can avoid
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// regenerating the coords. We could take a finer grained approach to updating texture
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// coords but its not clear if the extra bookkeeping would offset any gains.
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// To avoid looping over the glyphs twice, we do one loop and conditionally update color
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// or coords as needed. One final note, if we have to break a run for an atlas eviction
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// then we can't really trust the atlas has all of the correct data. Atlas evictions
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// should be pretty rare, so we just always regenerate in those cases
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if (regenerateTextureCoords || regenerateColors || regeneratePositions) {
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// first regenerate texture coordinates / colors if need be
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bool brokenRun = false;
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// Because the GrBatchFontCache may evict the strike a blob depends on using for
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// generating its texture coords, we have to track whether or not the strike has
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// been abandoned. If it hasn't been abandoned, then we can use the GrGlyph*s as is
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// otherwise we have to get the new strike, and use that to get the correct glyphs.
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// Because we do not have the packed ids, and thus can't look up our glyphs in the
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// new strike, we instead keep our ref to the old strike and use the packed ids from
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// it. These ids will still be valid as long as we hold the ref. When we are done
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// updating our cache of the GrGlyph*s, we drop our ref on the old strike
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bool regenerateGlyphs = false;
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GrBatchTextStrike* strike = nullptr;
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||||
if (regenerateTextureCoords) {
|
||||
info.fBulkUseToken.reset();
|
||||
|
||||
// We can reuse if we have a valid strike and our descriptors / typeface are the
|
||||
// same. The override descriptor is only for the non distance field text within
|
||||
// a run
|
||||
const SkDescriptor* newDesc = (run.fOverrideDescriptor && !usesDistanceFields) ?
|
||||
run.fOverrideDescriptor->getDesc() :
|
||||
run.fDescriptor.getDesc();
|
||||
if (!cache || !SkTypeface::Equal(typeface, run.fTypeface) ||
|
||||
!(desc->equals(*newDesc))) {
|
||||
if (cache) {
|
||||
SkGlyphCache::AttachCache(cache);
|
||||
}
|
||||
desc = newDesc;
|
||||
cache = SkGlyphCache::DetachCache(run.fTypeface, desc);
|
||||
scaler = GrTextContext::GetGrFontScaler(cache);
|
||||
strike = info.fStrike;
|
||||
typeface = run.fTypeface;
|
||||
}
|
||||
|
||||
if (info.fStrike->isAbandoned()) {
|
||||
regenerateGlyphs = true;
|
||||
strike = fFontCache->getStrike(scaler);
|
||||
} else {
|
||||
strike = info.fStrike;
|
||||
}
|
||||
}
|
||||
|
||||
for (int glyphIdx = 0; glyphIdx < glyphCount; glyphIdx++) {
|
||||
if (regenerateTextureCoords) {
|
||||
size_t glyphOffset = glyphIdx + info.fGlyphStartIndex;
|
||||
|
||||
GrGlyph* glyph = blob->fGlyphs[glyphOffset];
|
||||
GrGlyph::PackedID id = glyph->fPackedID;
|
||||
const SkGlyph& skGlyph = scaler->grToSkGlyph(id);
|
||||
if (regenerateGlyphs) {
|
||||
// Get the id from the old glyph, and use the new strike to lookup
|
||||
// the glyph.
|
||||
blob->fGlyphs[glyphOffset] = strike->getGlyph(skGlyph, id, maskFormat,
|
||||
scaler);
|
||||
}
|
||||
glyph = blob->fGlyphs[glyphOffset];
|
||||
SkASSERT(glyph);
|
||||
SkASSERT(id == glyph->fPackedID);
|
||||
// We want to be able to assert this but cannot for testing purposes.
|
||||
// once skbug:4143 has landed we can revist this assert
|
||||
//SkASSERT(glyph->fMaskFormat == this->maskFormat());
|
||||
|
||||
if (!fFontCache->hasGlyph(glyph) &&
|
||||
!strike->addGlyphToAtlas(target, glyph, scaler, skGlyph, maskFormat)) {
|
||||
this->flush(target, &flushInfo);
|
||||
target->initDraw(gp, this->pipeline());
|
||||
brokenRun = glyphIdx > 0;
|
||||
|
||||
SkDEBUGCODE(bool success =) strike->addGlyphToAtlas(target,
|
||||
glyph,
|
||||
scaler,
|
||||
skGlyph,
|
||||
maskFormat);
|
||||
SkASSERT(success);
|
||||
}
|
||||
fFontCache->addGlyphToBulkAndSetUseToken(&info.fBulkUseToken, glyph,
|
||||
target->currentToken());
|
||||
|
||||
// Texture coords are the last vertex attribute so we get a pointer to the
|
||||
// first one and then map with stride in regenerateTextureCoords
|
||||
intptr_t vertex = reinterpret_cast<intptr_t>(blob->fVertices);
|
||||
vertex += info.fVertexStartIndex;
|
||||
vertex += vertexStride * glyphIdx * kVerticesPerGlyph;
|
||||
vertex += vertexStride - sizeof(SkIPoint16);
|
||||
|
||||
this->regenerateTextureCoords(glyph, vertex, vertexStride);
|
||||
}
|
||||
|
||||
if (regenerateColors) {
|
||||
intptr_t vertex = reinterpret_cast<intptr_t>(blob->fVertices);
|
||||
vertex += info.fVertexStartIndex;
|
||||
vertex += vertexStride * glyphIdx * kVerticesPerGlyph + sizeof(SkPoint);
|
||||
this->regenerateColors(vertex, vertexStride, args.fColor);
|
||||
}
|
||||
|
||||
if (regeneratePositions) {
|
||||
intptr_t vertex = reinterpret_cast<intptr_t>(blob->fVertices);
|
||||
vertex += info.fVertexStartIndex;
|
||||
vertex += vertexStride * glyphIdx * kVerticesPerGlyph;
|
||||
SkScalar transX = args.fTransX;
|
||||
SkScalar transY = args.fTransY;
|
||||
this->regeneratePositions(vertex, vertexStride, transX, transY);
|
||||
}
|
||||
flushInfo.fGlyphsToFlush++;
|
||||
}
|
||||
|
||||
// We my have changed the color so update it here
|
||||
run.fColor = args.fColor;
|
||||
if (regenerateTextureCoords) {
|
||||
if (regenerateGlyphs) {
|
||||
info.fStrike.reset(SkRef(strike));
|
||||
}
|
||||
info.fAtlasGeneration = brokenRun ? GrBatchAtlas::kInvalidAtlasGeneration :
|
||||
fFontCache->atlasGeneration(maskFormat);
|
||||
}
|
||||
} else {
|
||||
flushInfo.fGlyphsToFlush += glyphCount;
|
||||
|
||||
// set use tokens for all of the glyphs in our subrun. This is only valid if we
|
||||
// have a valid atlas generation
|
||||
fFontCache->setUseTokenBulk(info.fBulkUseToken, target->currentToken(), maskFormat);
|
||||
}
|
||||
|
||||
// now copy all vertices
|
||||
size_t byteCount = info.fVertexEndIndex - info.fVertexStartIndex;
|
||||
memcpy(currVertex, blob->fVertices + info.fVertexStartIndex, byteCount);
|
||||
|
||||
currVertex += byteCount;
|
||||
}
|
||||
// Make sure to attach the last cache if applicable
|
||||
if (cache) {
|
||||
SkGlyphCache::AttachCache(cache);
|
||||
}
|
||||
this->flush(target, &flushInfo);
|
||||
}
|
||||
|
||||
TextBatch() : INHERITED(ClassID()) {} // initialized in factory functions.
|
||||
|
||||
~TextBatch() {
|
||||
for (int i = 0; i < fGeoCount; i++) {
|
||||
fGeoData[i].fBlob->unref();
|
||||
}
|
||||
}
|
||||
|
||||
GrMaskFormat maskFormat() const {
|
||||
switch (fMaskType) {
|
||||
case kLCDCoverageMask_MaskType:
|
||||
return kA565_GrMaskFormat;
|
||||
case kColorBitmapMask_MaskType:
|
||||
return kARGB_GrMaskFormat;
|
||||
case kGrayscaleCoverageMask_MaskType:
|
||||
case kGrayscaleDistanceField_MaskType:
|
||||
case kLCDDistanceField_MaskType:
|
||||
return kA8_GrMaskFormat;
|
||||
}
|
||||
return kA8_GrMaskFormat; // suppress warning
|
||||
}
|
||||
|
||||
bool usesDistanceFields() const {
|
||||
return kGrayscaleDistanceField_MaskType == fMaskType ||
|
||||
kLCDDistanceField_MaskType == fMaskType;
|
||||
}
|
||||
|
||||
bool isLCD() const {
|
||||
return kLCDCoverageMask_MaskType == fMaskType ||
|
||||
kLCDDistanceField_MaskType == fMaskType;
|
||||
}
|
||||
|
||||
void regenerateTextureCoords(GrGlyph* glyph, intptr_t vertex, size_t vertexStride) {
|
||||
int width = glyph->fBounds.width();
|
||||
int height = glyph->fBounds.height();
|
||||
|
||||
int u0, v0, u1, v1;
|
||||
if (this->usesDistanceFields()) {
|
||||
u0 = glyph->fAtlasLocation.fX + SK_DistanceFieldInset;
|
||||
v0 = glyph->fAtlasLocation.fY + SK_DistanceFieldInset;
|
||||
u1 = u0 + width - 2 * SK_DistanceFieldInset;
|
||||
v1 = v0 + height - 2 * SK_DistanceFieldInset;
|
||||
} else {
|
||||
u0 = glyph->fAtlasLocation.fX;
|
||||
v0 = glyph->fAtlasLocation.fY;
|
||||
u1 = u0 + width;
|
||||
v1 = v0 + height;
|
||||
}
|
||||
|
||||
SkIPoint16* textureCoords;
|
||||
// V0
|
||||
textureCoords = reinterpret_cast<SkIPoint16*>(vertex);
|
||||
textureCoords->set(u0, v0);
|
||||
vertex += vertexStride;
|
||||
|
||||
// V1
|
||||
textureCoords = reinterpret_cast<SkIPoint16*>(vertex);
|
||||
textureCoords->set(u0, v1);
|
||||
vertex += vertexStride;
|
||||
|
||||
// V2
|
||||
textureCoords = reinterpret_cast<SkIPoint16*>(vertex);
|
||||
textureCoords->set(u1, v1);
|
||||
vertex += vertexStride;
|
||||
|
||||
// V3
|
||||
textureCoords = reinterpret_cast<SkIPoint16*>(vertex);
|
||||
textureCoords->set(u1, v0);
|
||||
}
|
||||
|
||||
void regenerateColors(intptr_t vertex, size_t vertexStride, GrColor color) {
|
||||
for (int i = 0; i < kVerticesPerGlyph; i++) {
|
||||
SkColor* vcolor = reinterpret_cast<SkColor*>(vertex);
|
||||
*vcolor = color;
|
||||
vertex += vertexStride;
|
||||
}
|
||||
}
|
||||
|
||||
void regeneratePositions(intptr_t vertex, size_t vertexStride, SkScalar transX,
|
||||
SkScalar transY) {
|
||||
for (int i = 0; i < kVerticesPerGlyph; i++) {
|
||||
SkPoint* point = reinterpret_cast<SkPoint*>(vertex);
|
||||
point->fX += transX;
|
||||
point->fY += transY;
|
||||
vertex += vertexStride;
|
||||
}
|
||||
}
|
||||
|
||||
void flush(GrVertexBatch::Target* target, FlushInfo* flushInfo) {
|
||||
GrVertices vertices;
|
||||
int maxGlyphsPerDraw = flushInfo->fIndexBuffer->maxQuads();
|
||||
vertices.initInstanced(kTriangles_GrPrimitiveType, flushInfo->fVertexBuffer,
|
||||
flushInfo->fIndexBuffer, flushInfo->fVertexOffset,
|
||||
kVerticesPerGlyph, kIndicesPerGlyph, flushInfo->fGlyphsToFlush,
|
||||
maxGlyphsPerDraw);
|
||||
target->draw(vertices);
|
||||
flushInfo->fVertexOffset += kVerticesPerGlyph * flushInfo->fGlyphsToFlush;
|
||||
flushInfo->fGlyphsToFlush = 0;
|
||||
}
|
||||
|
||||
GrColor color() const { return fBatch.fColor; }
|
||||
const SkMatrix& viewMatrix() const { return fBatch.fViewMatrix; }
|
||||
bool usesLocalCoords() const { return fBatch.fUsesLocalCoords; }
|
||||
int numGlyphs() const { return fBatch.fNumGlyphs; }
|
||||
|
||||
bool onCombineIfPossible(GrBatch* t, const GrCaps& caps) override {
|
||||
TextBatch* that = t->cast<TextBatch>();
|
||||
if (!GrPipeline::CanCombine(*this->pipeline(), this->bounds(), *that->pipeline(),
|
||||
that->bounds(), caps)) {
|
||||
return false;
|
||||
}
|
||||
|
||||
if (fMaskType != that->fMaskType) {
|
||||
return false;
|
||||
}
|
||||
|
||||
if (!this->usesDistanceFields()) {
|
||||
// TODO we can often batch across LCD text if we have dual source blending and don't
|
||||
// have to use the blend constant
|
||||
if (kGrayscaleCoverageMask_MaskType != fMaskType && this->color() != that->color()) {
|
||||
return false;
|
||||
}
|
||||
if (this->usesLocalCoords() && !this->viewMatrix().cheapEqualTo(that->viewMatrix())) {
|
||||
return false;
|
||||
}
|
||||
} else {
|
||||
if (!this->viewMatrix().cheapEqualTo(that->viewMatrix())) {
|
||||
return false;
|
||||
}
|
||||
|
||||
if (fFilteredColor != that->fFilteredColor) {
|
||||
return false;
|
||||
}
|
||||
|
||||
if (fUseBGR != that->fUseBGR) {
|
||||
return false;
|
||||
}
|
||||
|
||||
// TODO see note above
|
||||
if (kLCDDistanceField_MaskType == fMaskType && this->color() != that->color()) {
|
||||
return false;
|
||||
}
|
||||
}
|
||||
|
||||
fBatch.fNumGlyphs += that->numGlyphs();
|
||||
|
||||
// Reallocate space for geo data if necessary and then import that's geo data.
|
||||
int newGeoCount = that->fGeoCount + fGeoCount;
|
||||
// We assume (and here enforce) that the allocation size is the smallest power of two that
|
||||
// is greater than or equal to the number of geometries (and at least
|
||||
// kMinGeometryAllocated).
|
||||
int newAllocSize = GrNextPow2(newGeoCount);
|
||||
int currAllocSize = SkTMax<int>(kMinGeometryAllocated, GrNextPow2(fGeoCount));
|
||||
|
||||
if (newGeoCount > currAllocSize) {
|
||||
fGeoData.realloc(newAllocSize);
|
||||
}
|
||||
|
||||
memcpy(&fGeoData[fGeoCount], that->fGeoData.get(), that->fGeoCount * sizeof(Geometry));
|
||||
// We steal the ref on the blobs from the other TextBatch and set its count to 0 so that
|
||||
// it doesn't try to unref them.
|
||||
#ifdef SK_DEBUG
|
||||
for (int i = 0; i < that->fGeoCount; ++i) {
|
||||
that->fGeoData.get()[i].fBlob = (Blob*)0x1;
|
||||
}
|
||||
#endif
|
||||
that->fGeoCount = 0;
|
||||
fGeoCount = newGeoCount;
|
||||
|
||||
this->joinBounds(that->bounds());
|
||||
return true;
|
||||
}
|
||||
|
||||
// TODO just use class params
|
||||
// TODO trying to figure out why lcd is so whack
|
||||
GrGeometryProcessor* setupDfProcessor(const SkMatrix& viewMatrix, SkColor filteredColor,
|
||||
GrColor color, GrTexture* texture) {
|
||||
GrTextureParams params(SkShader::kClamp_TileMode, GrTextureParams::kBilerp_FilterMode);
|
||||
bool isLCD = this->isLCD();
|
||||
// set up any flags
|
||||
uint32_t flags = viewMatrix.isSimilarity() ? kSimilarity_DistanceFieldEffectFlag : 0;
|
||||
|
||||
// see if we need to create a new effect
|
||||
if (isLCD) {
|
||||
flags |= kUseLCD_DistanceFieldEffectFlag;
|
||||
flags |= viewMatrix.rectStaysRect() ? kRectToRect_DistanceFieldEffectFlag : 0;
|
||||
flags |= fUseBGR ? kBGR_DistanceFieldEffectFlag : 0;
|
||||
|
||||
GrColor colorNoPreMul = skcolor_to_grcolor_nopremultiply(filteredColor);
|
||||
|
||||
float redCorrection =
|
||||
(*fDistanceAdjustTable)[GrColorUnpackR(colorNoPreMul) >> kDistanceAdjustLumShift];
|
||||
float greenCorrection =
|
||||
(*fDistanceAdjustTable)[GrColorUnpackG(colorNoPreMul) >> kDistanceAdjustLumShift];
|
||||
float blueCorrection =
|
||||
(*fDistanceAdjustTable)[GrColorUnpackB(colorNoPreMul) >> kDistanceAdjustLumShift];
|
||||
GrDistanceFieldLCDTextGeoProc::DistanceAdjust widthAdjust =
|
||||
GrDistanceFieldLCDTextGeoProc::DistanceAdjust::Make(redCorrection,
|
||||
greenCorrection,
|
||||
blueCorrection);
|
||||
|
||||
return GrDistanceFieldLCDTextGeoProc::Create(color,
|
||||
viewMatrix,
|
||||
texture,
|
||||
params,
|
||||
widthAdjust,
|
||||
flags,
|
||||
this->usesLocalCoords());
|
||||
} else {
|
||||
flags |= kColorAttr_DistanceFieldEffectFlag;
|
||||
#ifdef SK_GAMMA_APPLY_TO_A8
|
||||
U8CPU lum = SkColorSpaceLuminance::computeLuminance(SK_GAMMA_EXPONENT, filteredColor);
|
||||
float correction = (*fDistanceAdjustTable)[lum >> kDistanceAdjustLumShift];
|
||||
return GrDistanceFieldA8TextGeoProc::Create(color,
|
||||
viewMatrix,
|
||||
texture,
|
||||
params,
|
||||
correction,
|
||||
flags,
|
||||
this->usesLocalCoords());
|
||||
#else
|
||||
return GrDistanceFieldA8TextGeoProc::Create(color,
|
||||
viewMatrix,
|
||||
texture,
|
||||
params,
|
||||
flags,
|
||||
this->usesLocalCoords());
|
||||
#endif
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
struct BatchTracker {
|
||||
GrColor fColor;
|
||||
SkMatrix fViewMatrix;
|
||||
bool fUsesLocalCoords;
|
||||
bool fColorIgnored;
|
||||
bool fCoverageIgnored;
|
||||
int fNumGlyphs;
|
||||
};
|
||||
|
||||
BatchTracker fBatch;
|
||||
// The minimum number of Geometry we will try to allocate.
|
||||
enum { kMinGeometryAllocated = 4 };
|
||||
SkAutoSTMalloc<kMinGeometryAllocated, Geometry> fGeoData;
|
||||
int fGeoCount;
|
||||
|
||||
enum MaskType {
|
||||
kGrayscaleCoverageMask_MaskType,
|
||||
kLCDCoverageMask_MaskType,
|
||||
kColorBitmapMask_MaskType,
|
||||
kGrayscaleDistanceField_MaskType,
|
||||
kLCDDistanceField_MaskType,
|
||||
} fMaskType;
|
||||
bool fUseBGR; // fold this into the enum?
|
||||
|
||||
GrBatchFontCache* fFontCache;
|
||||
|
||||
// Distance field properties
|
||||
SkAutoTUnref<const DistanceAdjustTable> fDistanceAdjustTable;
|
||||
SkColor fFilteredColor;
|
||||
|
||||
typedef GrVertexBatch INHERITED;
|
||||
};
|
||||
|
||||
void GrAtlasTextContext::flushRunAsPaths(GrDrawContext* dc, GrRenderTarget* rt,
|
||||
const SkTextBlobRunIterator& it,
|
||||
const GrClip& clip, const SkPaint& skPaint,
|
||||
@ -1942,7 +1261,7 @@ GrAtlasTextContext::createBatch(GrAtlasTextBlob* cacheBlob, const PerSubRunInfo&
|
||||
subRunColor = color;
|
||||
}
|
||||
|
||||
TextBatch* batch;
|
||||
GrAtlasTextBatch* batch;
|
||||
if (info.fDrawAsDistanceFields) {
|
||||
SkColor filteredColor;
|
||||
SkColorFilter* colorFilter = skPaint.getColorFilter();
|
||||
@ -1952,13 +1271,13 @@ GrAtlasTextContext::createBatch(GrAtlasTextBlob* cacheBlob, const PerSubRunInfo&
|
||||
filteredColor = skPaint.getColor();
|
||||
}
|
||||
bool useBGR = SkPixelGeometryIsBGR(fSurfaceProps.pixelGeometry());
|
||||
batch = TextBatch::CreateDistanceField(glyphCount, fContext->getBatchFontCache(),
|
||||
fDistanceAdjustTable, filteredColor,
|
||||
info.fUseLCDText, useBGR);
|
||||
batch = GrAtlasTextBatch::CreateDistanceField(glyphCount, fContext->getBatchFontCache(),
|
||||
fDistanceAdjustTable, filteredColor,
|
||||
info.fUseLCDText, useBGR);
|
||||
} else {
|
||||
batch = TextBatch::CreateBitmap(format, glyphCount, fContext->getBatchFontCache());
|
||||
batch = GrAtlasTextBatch::CreateBitmap(format, glyphCount, fContext->getBatchFontCache());
|
||||
}
|
||||
TextBatch::Geometry& geometry = batch->geometry();
|
||||
GrAtlasTextBatch::Geometry& geometry = batch->geometry();
|
||||
geometry.fBlob = SkRef(cacheBlob);
|
||||
geometry.fRun = run;
|
||||
geometry.fSubRun = subRun;
|
||||
|
@ -27,7 +27,6 @@ class SkGlyph;
|
||||
|
||||
/*
|
||||
* This class implements GrTextContext using standard bitmap fonts, and can also process textblobs.
|
||||
* TODO replace GrBitmapTextContext
|
||||
*/
|
||||
class GrAtlasTextContext : public GrTextContext {
|
||||
public:
|
||||
@ -184,7 +183,7 @@ private:
|
||||
SkAutoTUnref<const DistanceAdjustTable> fDistanceAdjustTable;
|
||||
|
||||
friend class GrTextBlobCache;
|
||||
friend class TextBatch;
|
||||
friend class GrAtlasTextBatch;
|
||||
|
||||
#ifdef GR_TEST_UTILS
|
||||
DRAW_BATCH_TEST_FRIEND(TextBlobBatch);
|
||||
|
@ -82,7 +82,7 @@ protected:
|
||||
const char text[], size_t byteLength, SkVector* stopVector);
|
||||
static uint32_t FilterTextFlags(const SkSurfaceProps& surfaceProps, const SkPaint& paint);
|
||||
|
||||
friend class TextBatch;
|
||||
friend class GrAtlasTextBatch;
|
||||
};
|
||||
|
||||
#endif
|
||||
|
507
src/gpu/batches/GrAtlasTextBatch.cpp
Normal file
507
src/gpu/batches/GrAtlasTextBatch.cpp
Normal file
@ -0,0 +1,507 @@
|
||||
/*
|
||||
* Copyright 2015 Google Inc.
|
||||
*
|
||||
* Use of this source code is governed by a BSD-style license that can be
|
||||
* found in the LICENSE file.
|
||||
*/
|
||||
|
||||
#include "GrAtlasTextBatch.h"
|
||||
|
||||
#include "GrBatchFontCache.h"
|
||||
#include "GrBatchFlushState.h"
|
||||
#include "GrBatchTest.h"
|
||||
#include "GrResourceProvider.h"
|
||||
|
||||
#include "SkDistanceFieldGen.h"
|
||||
#include "SkGlyphCache.h"
|
||||
|
||||
#include "effects/GrBitmapTextGeoProc.h"
|
||||
#include "effects/GrDistanceFieldGeoProc.h"
|
||||
|
||||
static inline GrColor skcolor_to_grcolor_nopremultiply(SkColor c) {
|
||||
unsigned r = SkColorGetR(c);
|
||||
unsigned g = SkColorGetG(c);
|
||||
unsigned b = SkColorGetB(c);
|
||||
return GrColorPackRGBA(r, g, b, 0xff);
|
||||
}
|
||||
|
||||
static const int kDistanceAdjustLumShift = 5;
|
||||
|
||||
SkString GrAtlasTextBatch::dumpInfo() const {
|
||||
SkString str;
|
||||
|
||||
for (int i = 0; i < fGeoCount; ++i) {
|
||||
str.appendf("%d: Color: 0x%08x Trans: %.2f,%.2f Runs: %d\n",
|
||||
i,
|
||||
fGeoData[i].fColor,
|
||||
fGeoData[i].fTransX,
|
||||
fGeoData[i].fTransY,
|
||||
fGeoData[i].fBlob->fRunCount);
|
||||
}
|
||||
|
||||
str.append(INHERITED::dumpInfo());
|
||||
return str;
|
||||
}
|
||||
|
||||
void GrAtlasTextBatch::getInvariantOutputColor(GrInitInvariantOutput* out) const {
|
||||
if (kColorBitmapMask_MaskType == fMaskType) {
|
||||
out->setUnknownFourComponents();
|
||||
} else {
|
||||
out->setKnownFourComponents(fBatch.fColor);
|
||||
}
|
||||
}
|
||||
|
||||
void GrAtlasTextBatch::getInvariantOutputCoverage(GrInitInvariantOutput* out) const {
|
||||
switch (fMaskType) {
|
||||
case kGrayscaleDistanceField_MaskType:
|
||||
case kGrayscaleCoverageMask_MaskType:
|
||||
out->setUnknownSingleComponent();
|
||||
break;
|
||||
case kLCDCoverageMask_MaskType:
|
||||
case kLCDDistanceField_MaskType:
|
||||
out->setUnknownOpaqueFourComponents();
|
||||
out->setUsingLCDCoverage();
|
||||
break;
|
||||
case kColorBitmapMask_MaskType:
|
||||
out->setKnownSingleComponent(0xff);
|
||||
}
|
||||
}
|
||||
|
||||
void GrAtlasTextBatch::initBatchTracker(const GrPipelineOptimizations& opt) {
|
||||
// Handle any color overrides
|
||||
if (!opt.readsColor()) {
|
||||
fGeoData[0].fColor = GrColor_ILLEGAL;
|
||||
}
|
||||
opt.getOverrideColorIfSet(&fGeoData[0].fColor);
|
||||
|
||||
// setup batch properties
|
||||
fBatch.fColorIgnored = !opt.readsColor();
|
||||
fBatch.fColor = fGeoData[0].fColor;
|
||||
fBatch.fUsesLocalCoords = opt.readsLocalCoords();
|
||||
fBatch.fCoverageIgnored = !opt.readsCoverage();
|
||||
}
|
||||
|
||||
void GrAtlasTextBatch::onPrepareDraws(Target* target) {
|
||||
// if we have RGB, then we won't have any SkShaders so no need to use a localmatrix.
|
||||
// TODO actually only invert if we don't have RGBA
|
||||
SkMatrix localMatrix;
|
||||
if (this->usesLocalCoords() && !this->viewMatrix().invert(&localMatrix)) {
|
||||
SkDebugf("Cannot invert viewmatrix\n");
|
||||
return;
|
||||
}
|
||||
|
||||
GrTexture* texture = fFontCache->getTexture(this->maskFormat());
|
||||
if (!texture) {
|
||||
SkDebugf("Could not allocate backing texture for atlas\n");
|
||||
return;
|
||||
}
|
||||
|
||||
bool usesDistanceFields = this->usesDistanceFields();
|
||||
GrMaskFormat maskFormat = this->maskFormat();
|
||||
bool isLCD = this->isLCD();
|
||||
|
||||
SkAutoTUnref<const GrGeometryProcessor> gp;
|
||||
if (usesDistanceFields) {
|
||||
gp.reset(this->setupDfProcessor(this->viewMatrix(), fFilteredColor, this->color(),
|
||||
texture));
|
||||
} else {
|
||||
GrTextureParams params(SkShader::kClamp_TileMode, GrTextureParams::kNone_FilterMode);
|
||||
gp.reset(GrBitmapTextGeoProc::Create(this->color(),
|
||||
texture,
|
||||
params,
|
||||
maskFormat,
|
||||
localMatrix,
|
||||
this->usesLocalCoords()));
|
||||
}
|
||||
|
||||
FlushInfo flushInfo;
|
||||
flushInfo.fGlyphsToFlush = 0;
|
||||
size_t vertexStride = gp->getVertexStride();
|
||||
SkASSERT(vertexStride == (usesDistanceFields ?
|
||||
GetVertexStrideDf(maskFormat, isLCD) :
|
||||
GetVertexStride(maskFormat)));
|
||||
|
||||
target->initDraw(gp, this->pipeline());
|
||||
|
||||
int glyphCount = this->numGlyphs();
|
||||
const GrVertexBuffer* vertexBuffer;
|
||||
|
||||
void* vertices = target->makeVertexSpace(vertexStride,
|
||||
glyphCount * kVerticesPerGlyph,
|
||||
&vertexBuffer,
|
||||
&flushInfo.fVertexOffset);
|
||||
flushInfo.fVertexBuffer.reset(SkRef(vertexBuffer));
|
||||
flushInfo.fIndexBuffer.reset(target->resourceProvider()->refQuadIndexBuffer());
|
||||
if (!vertices || !flushInfo.fVertexBuffer) {
|
||||
SkDebugf("Could not allocate vertices\n");
|
||||
return;
|
||||
}
|
||||
|
||||
unsigned char* currVertex = reinterpret_cast<unsigned char*>(vertices);
|
||||
|
||||
// We cache some values to avoid going to the glyphcache for the same fontScaler twice
|
||||
// in a row
|
||||
const SkDescriptor* desc = nullptr;
|
||||
SkGlyphCache* cache = nullptr;
|
||||
GrFontScaler* scaler = nullptr;
|
||||
SkTypeface* typeface = nullptr;
|
||||
|
||||
for (int i = 0; i < fGeoCount; i++) {
|
||||
Geometry& args = fGeoData[i];
|
||||
Blob* blob = args.fBlob;
|
||||
Run& run = blob->fRuns[args.fRun];
|
||||
TextInfo& info = run.fSubRunInfo[args.fSubRun];
|
||||
|
||||
uint64_t currentAtlasGen = fFontCache->atlasGeneration(maskFormat);
|
||||
bool regenerateTextureCoords = info.fAtlasGeneration != currentAtlasGen ||
|
||||
info.fStrike->isAbandoned();
|
||||
bool regenerateColors;
|
||||
if (usesDistanceFields) {
|
||||
regenerateColors = !isLCD && run.fColor != args.fColor;
|
||||
} else {
|
||||
regenerateColors = kA8_GrMaskFormat == maskFormat && run.fColor != args.fColor;
|
||||
}
|
||||
bool regeneratePositions = args.fTransX != 0.f || args.fTransY != 0.f;
|
||||
int glyphCount = info.fGlyphEndIndex - info.fGlyphStartIndex;
|
||||
|
||||
// We regenerate both texture coords and colors in the blob itself, and update the
|
||||
// atlas generation. If we don't end up purging any unused plots, we can avoid
|
||||
// regenerating the coords. We could take a finer grained approach to updating texture
|
||||
// coords but its not clear if the extra bookkeeping would offset any gains.
|
||||
// To avoid looping over the glyphs twice, we do one loop and conditionally update color
|
||||
// or coords as needed. One final note, if we have to break a run for an atlas eviction
|
||||
// then we can't really trust the atlas has all of the correct data. Atlas evictions
|
||||
// should be pretty rare, so we just always regenerate in those cases
|
||||
if (regenerateTextureCoords || regenerateColors || regeneratePositions) {
|
||||
// first regenerate texture coordinates / colors if need be
|
||||
bool brokenRun = false;
|
||||
|
||||
// Because the GrBatchFontCache may evict the strike a blob depends on using for
|
||||
// generating its texture coords, we have to track whether or not the strike has
|
||||
// been abandoned. If it hasn't been abandoned, then we can use the GrGlyph*s as is
|
||||
// otherwise we have to get the new strike, and use that to get the correct glyphs.
|
||||
// Because we do not have the packed ids, and thus can't look up our glyphs in the
|
||||
// new strike, we instead keep our ref to the old strike and use the packed ids from
|
||||
// it. These ids will still be valid as long as we hold the ref. When we are done
|
||||
// updating our cache of the GrGlyph*s, we drop our ref on the old strike
|
||||
bool regenerateGlyphs = false;
|
||||
GrBatchTextStrike* strike = nullptr;
|
||||
if (regenerateTextureCoords) {
|
||||
info.fBulkUseToken.reset();
|
||||
|
||||
// We can reuse if we have a valid strike and our descriptors / typeface are the
|
||||
// same. The override descriptor is only for the non distance field text within
|
||||
// a run
|
||||
const SkDescriptor* newDesc = (run.fOverrideDescriptor && !usesDistanceFields) ?
|
||||
run.fOverrideDescriptor->getDesc() :
|
||||
run.fDescriptor.getDesc();
|
||||
if (!cache || !SkTypeface::Equal(typeface, run.fTypeface) ||
|
||||
!(desc->equals(*newDesc))) {
|
||||
if (cache) {
|
||||
SkGlyphCache::AttachCache(cache);
|
||||
}
|
||||
desc = newDesc;
|
||||
cache = SkGlyphCache::DetachCache(run.fTypeface, desc);
|
||||
scaler = GrTextContext::GetGrFontScaler(cache);
|
||||
strike = info.fStrike;
|
||||
typeface = run.fTypeface;
|
||||
}
|
||||
|
||||
if (info.fStrike->isAbandoned()) {
|
||||
regenerateGlyphs = true;
|
||||
strike = fFontCache->getStrike(scaler);
|
||||
} else {
|
||||
strike = info.fStrike;
|
||||
}
|
||||
}
|
||||
|
||||
for (int glyphIdx = 0; glyphIdx < glyphCount; glyphIdx++) {
|
||||
if (regenerateTextureCoords) {
|
||||
size_t glyphOffset = glyphIdx + info.fGlyphStartIndex;
|
||||
|
||||
GrGlyph* glyph = blob->fGlyphs[glyphOffset];
|
||||
GrGlyph::PackedID id = glyph->fPackedID;
|
||||
const SkGlyph& skGlyph = scaler->grToSkGlyph(id);
|
||||
if (regenerateGlyphs) {
|
||||
// Get the id from the old glyph, and use the new strike to lookup
|
||||
// the glyph.
|
||||
blob->fGlyphs[glyphOffset] = strike->getGlyph(skGlyph, id, maskFormat,
|
||||
scaler);
|
||||
}
|
||||
glyph = blob->fGlyphs[glyphOffset];
|
||||
SkASSERT(glyph);
|
||||
SkASSERT(id == glyph->fPackedID);
|
||||
// We want to be able to assert this but cannot for testing purposes.
|
||||
// once skbug:4143 has landed we can revist this assert
|
||||
//SkASSERT(glyph->fMaskFormat == this->maskFormat());
|
||||
|
||||
if (!fFontCache->hasGlyph(glyph) &&
|
||||
!strike->addGlyphToAtlas(target, glyph, scaler, skGlyph, maskFormat)) {
|
||||
this->flush(target, &flushInfo);
|
||||
target->initDraw(gp, this->pipeline());
|
||||
brokenRun = glyphIdx > 0;
|
||||
|
||||
SkDEBUGCODE(bool success =) strike->addGlyphToAtlas(target,
|
||||
glyph,
|
||||
scaler,
|
||||
skGlyph,
|
||||
maskFormat);
|
||||
SkASSERT(success);
|
||||
}
|
||||
fFontCache->addGlyphToBulkAndSetUseToken(&info.fBulkUseToken, glyph,
|
||||
target->currentToken());
|
||||
|
||||
// Texture coords are the last vertex attribute so we get a pointer to the
|
||||
// first one and then map with stride in regenerateTextureCoords
|
||||
intptr_t vertex = reinterpret_cast<intptr_t>(blob->fVertices);
|
||||
vertex += info.fVertexStartIndex;
|
||||
vertex += vertexStride * glyphIdx * kVerticesPerGlyph;
|
||||
vertex += vertexStride - sizeof(SkIPoint16);
|
||||
|
||||
this->regenerateTextureCoords(glyph, vertex, vertexStride);
|
||||
}
|
||||
|
||||
if (regenerateColors) {
|
||||
intptr_t vertex = reinterpret_cast<intptr_t>(blob->fVertices);
|
||||
vertex += info.fVertexStartIndex;
|
||||
vertex += vertexStride * glyphIdx * kVerticesPerGlyph + sizeof(SkPoint);
|
||||
this->regenerateColors(vertex, vertexStride, args.fColor);
|
||||
}
|
||||
|
||||
if (regeneratePositions) {
|
||||
intptr_t vertex = reinterpret_cast<intptr_t>(blob->fVertices);
|
||||
vertex += info.fVertexStartIndex;
|
||||
vertex += vertexStride * glyphIdx * kVerticesPerGlyph;
|
||||
SkScalar transX = args.fTransX;
|
||||
SkScalar transY = args.fTransY;
|
||||
this->regeneratePositions(vertex, vertexStride, transX, transY);
|
||||
}
|
||||
flushInfo.fGlyphsToFlush++;
|
||||
}
|
||||
|
||||
// We my have changed the color so update it here
|
||||
run.fColor = args.fColor;
|
||||
if (regenerateTextureCoords) {
|
||||
if (regenerateGlyphs) {
|
||||
info.fStrike.reset(SkRef(strike));
|
||||
}
|
||||
info.fAtlasGeneration = brokenRun ? GrBatchAtlas::kInvalidAtlasGeneration :
|
||||
fFontCache->atlasGeneration(maskFormat);
|
||||
}
|
||||
} else {
|
||||
flushInfo.fGlyphsToFlush += glyphCount;
|
||||
|
||||
// set use tokens for all of the glyphs in our subrun. This is only valid if we
|
||||
// have a valid atlas generation
|
||||
fFontCache->setUseTokenBulk(info.fBulkUseToken, target->currentToken(), maskFormat);
|
||||
}
|
||||
|
||||
// now copy all vertices
|
||||
size_t byteCount = info.fVertexEndIndex - info.fVertexStartIndex;
|
||||
memcpy(currVertex, blob->fVertices + info.fVertexStartIndex, byteCount);
|
||||
|
||||
currVertex += byteCount;
|
||||
}
|
||||
// Make sure to attach the last cache if applicable
|
||||
if (cache) {
|
||||
SkGlyphCache::AttachCache(cache);
|
||||
}
|
||||
this->flush(target, &flushInfo);
|
||||
}
|
||||
|
||||
void GrAtlasTextBatch::regenerateTextureCoords(GrGlyph* glyph, intptr_t vertex,
|
||||
size_t vertexStride) {
|
||||
int width = glyph->fBounds.width();
|
||||
int height = glyph->fBounds.height();
|
||||
|
||||
int u0, v0, u1, v1;
|
||||
if (this->usesDistanceFields()) {
|
||||
u0 = glyph->fAtlasLocation.fX + SK_DistanceFieldInset;
|
||||
v0 = glyph->fAtlasLocation.fY + SK_DistanceFieldInset;
|
||||
u1 = u0 + width - 2 * SK_DistanceFieldInset;
|
||||
v1 = v0 + height - 2 * SK_DistanceFieldInset;
|
||||
} else {
|
||||
u0 = glyph->fAtlasLocation.fX;
|
||||
v0 = glyph->fAtlasLocation.fY;
|
||||
u1 = u0 + width;
|
||||
v1 = v0 + height;
|
||||
}
|
||||
|
||||
SkIPoint16* textureCoords;
|
||||
// V0
|
||||
textureCoords = reinterpret_cast<SkIPoint16*>(vertex);
|
||||
textureCoords->set(u0, v0);
|
||||
vertex += vertexStride;
|
||||
|
||||
// V1
|
||||
textureCoords = reinterpret_cast<SkIPoint16*>(vertex);
|
||||
textureCoords->set(u0, v1);
|
||||
vertex += vertexStride;
|
||||
|
||||
// V2
|
||||
textureCoords = reinterpret_cast<SkIPoint16*>(vertex);
|
||||
textureCoords->set(u1, v1);
|
||||
vertex += vertexStride;
|
||||
|
||||
// V3
|
||||
textureCoords = reinterpret_cast<SkIPoint16*>(vertex);
|
||||
textureCoords->set(u1, v0);
|
||||
}
|
||||
|
||||
void GrAtlasTextBatch::regenerateColors(intptr_t vertex, size_t vertexStride, GrColor color) {
|
||||
for (int i = 0; i < kVerticesPerGlyph; i++) {
|
||||
SkColor* vcolor = reinterpret_cast<SkColor*>(vertex);
|
||||
*vcolor = color;
|
||||
vertex += vertexStride;
|
||||
}
|
||||
}
|
||||
|
||||
void GrAtlasTextBatch::regeneratePositions(intptr_t vertex, size_t vertexStride, SkScalar transX,
|
||||
SkScalar transY) {
|
||||
for (int i = 0; i < kVerticesPerGlyph; i++) {
|
||||
SkPoint* point = reinterpret_cast<SkPoint*>(vertex);
|
||||
point->fX += transX;
|
||||
point->fY += transY;
|
||||
vertex += vertexStride;
|
||||
}
|
||||
}
|
||||
|
||||
void GrAtlasTextBatch::flush(GrVertexBatch::Target* target, FlushInfo* flushInfo) {
|
||||
GrVertices vertices;
|
||||
int maxGlyphsPerDraw = flushInfo->fIndexBuffer->maxQuads();
|
||||
vertices.initInstanced(kTriangles_GrPrimitiveType, flushInfo->fVertexBuffer,
|
||||
flushInfo->fIndexBuffer, flushInfo->fVertexOffset,
|
||||
kVerticesPerGlyph, kIndicesPerGlyph, flushInfo->fGlyphsToFlush,
|
||||
maxGlyphsPerDraw);
|
||||
target->draw(vertices);
|
||||
flushInfo->fVertexOffset += kVerticesPerGlyph * flushInfo->fGlyphsToFlush;
|
||||
flushInfo->fGlyphsToFlush = 0;
|
||||
}
|
||||
|
||||
bool GrAtlasTextBatch::onCombineIfPossible(GrBatch* t, const GrCaps& caps) {
|
||||
GrAtlasTextBatch* that = t->cast<GrAtlasTextBatch>();
|
||||
if (!GrPipeline::CanCombine(*this->pipeline(), this->bounds(), *that->pipeline(),
|
||||
that->bounds(), caps)) {
|
||||
return false;
|
||||
}
|
||||
|
||||
if (fMaskType != that->fMaskType) {
|
||||
return false;
|
||||
}
|
||||
|
||||
if (!this->usesDistanceFields()) {
|
||||
// TODO we can often batch across LCD text if we have dual source blending and don't
|
||||
// have to use the blend constant
|
||||
if (kGrayscaleCoverageMask_MaskType != fMaskType && this->color() != that->color()) {
|
||||
return false;
|
||||
}
|
||||
if (this->usesLocalCoords() && !this->viewMatrix().cheapEqualTo(that->viewMatrix())) {
|
||||
return false;
|
||||
}
|
||||
} else {
|
||||
if (!this->viewMatrix().cheapEqualTo(that->viewMatrix())) {
|
||||
return false;
|
||||
}
|
||||
|
||||
if (fFilteredColor != that->fFilteredColor) {
|
||||
return false;
|
||||
}
|
||||
|
||||
if (fUseBGR != that->fUseBGR) {
|
||||
return false;
|
||||
}
|
||||
|
||||
// TODO see note above
|
||||
if (kLCDDistanceField_MaskType == fMaskType && this->color() != that->color()) {
|
||||
return false;
|
||||
}
|
||||
}
|
||||
|
||||
fBatch.fNumGlyphs += that->numGlyphs();
|
||||
|
||||
// Reallocate space for geo data if necessary and then import that's geo data.
|
||||
int newGeoCount = that->fGeoCount + fGeoCount;
|
||||
// We assume (and here enforce) that the allocation size is the smallest power of two that
|
||||
// is greater than or equal to the number of geometries (and at least
|
||||
// kMinGeometryAllocated).
|
||||
int newAllocSize = GrNextPow2(newGeoCount);
|
||||
int currAllocSize = SkTMax<int>(kMinGeometryAllocated, GrNextPow2(fGeoCount));
|
||||
|
||||
if (newGeoCount > currAllocSize) {
|
||||
fGeoData.realloc(newAllocSize);
|
||||
}
|
||||
|
||||
memcpy(&fGeoData[fGeoCount], that->fGeoData.get(), that->fGeoCount * sizeof(Geometry));
|
||||
// We steal the ref on the blobs from the other TextBatch and set its count to 0 so that
|
||||
// it doesn't try to unref them.
|
||||
#ifdef SK_DEBUG
|
||||
for (int i = 0; i < that->fGeoCount; ++i) {
|
||||
that->fGeoData.get()[i].fBlob = (Blob*)0x1;
|
||||
}
|
||||
#endif
|
||||
that->fGeoCount = 0;
|
||||
fGeoCount = newGeoCount;
|
||||
|
||||
this->joinBounds(that->bounds());
|
||||
return true;
|
||||
}
|
||||
|
||||
// TODO just use class params
|
||||
// TODO trying to figure out why lcd is so whack
|
||||
GrGeometryProcessor* GrAtlasTextBatch::setupDfProcessor(const SkMatrix& viewMatrix,
|
||||
SkColor filteredColor,
|
||||
GrColor color, GrTexture* texture) {
|
||||
GrTextureParams params(SkShader::kClamp_TileMode, GrTextureParams::kBilerp_FilterMode);
|
||||
bool isLCD = this->isLCD();
|
||||
// set up any flags
|
||||
uint32_t flags = viewMatrix.isSimilarity() ? kSimilarity_DistanceFieldEffectFlag : 0;
|
||||
|
||||
// see if we need to create a new effect
|
||||
if (isLCD) {
|
||||
flags |= kUseLCD_DistanceFieldEffectFlag;
|
||||
flags |= viewMatrix.rectStaysRect() ? kRectToRect_DistanceFieldEffectFlag : 0;
|
||||
flags |= fUseBGR ? kBGR_DistanceFieldEffectFlag : 0;
|
||||
|
||||
GrColor colorNoPreMul = skcolor_to_grcolor_nopremultiply(filteredColor);
|
||||
|
||||
float redCorrection =
|
||||
(*fDistanceAdjustTable)[GrColorUnpackR(colorNoPreMul) >> kDistanceAdjustLumShift];
|
||||
float greenCorrection =
|
||||
(*fDistanceAdjustTable)[GrColorUnpackG(colorNoPreMul) >> kDistanceAdjustLumShift];
|
||||
float blueCorrection =
|
||||
(*fDistanceAdjustTable)[GrColorUnpackB(colorNoPreMul) >> kDistanceAdjustLumShift];
|
||||
GrDistanceFieldLCDTextGeoProc::DistanceAdjust widthAdjust =
|
||||
GrDistanceFieldLCDTextGeoProc::DistanceAdjust::Make(redCorrection,
|
||||
greenCorrection,
|
||||
blueCorrection);
|
||||
|
||||
return GrDistanceFieldLCDTextGeoProc::Create(color,
|
||||
viewMatrix,
|
||||
texture,
|
||||
params,
|
||||
widthAdjust,
|
||||
flags,
|
||||
this->usesLocalCoords());
|
||||
} else {
|
||||
flags |= kColorAttr_DistanceFieldEffectFlag;
|
||||
#ifdef SK_GAMMA_APPLY_TO_A8
|
||||
U8CPU lum = SkColorSpaceLuminance::computeLuminance(SK_GAMMA_EXPONENT, filteredColor);
|
||||
float correction = (*fDistanceAdjustTable)[lum >> kDistanceAdjustLumShift];
|
||||
return GrDistanceFieldA8TextGeoProc::Create(color,
|
||||
viewMatrix,
|
||||
texture,
|
||||
params,
|
||||
correction,
|
||||
flags,
|
||||
this->usesLocalCoords());
|
||||
#else
|
||||
return GrDistanceFieldA8TextGeoProc::Create(color,
|
||||
viewMatrix,
|
||||
texture,
|
||||
params,
|
||||
flags,
|
||||
this->usesLocalCoords());
|
||||
#endif
|
||||
}
|
||||
|
||||
}
|
227
src/gpu/batches/GrAtlasTextBatch.h
Normal file
227
src/gpu/batches/GrAtlasTextBatch.h
Normal file
@ -0,0 +1,227 @@
|
||||
/*
|
||||
* Copyright 2015 Google Inc.
|
||||
*
|
||||
* Use of this source code is governed by a BSD-style license that can be
|
||||
* found in the LICENSE file.
|
||||
*/
|
||||
|
||||
#ifndef GrAtlasTextBatch_DEFINED
|
||||
#define GrAtlasTextBatch_DEFINED
|
||||
|
||||
#include "batches/GrVertexBatch.h"
|
||||
|
||||
#include "GrAtlasTextContext.h"
|
||||
|
||||
class GrAtlasTextBatch : public GrVertexBatch {
|
||||
public:
|
||||
DEFINE_BATCH_CLASS_ID
|
||||
static const size_t kLCDTextVASize = sizeof(SkPoint) + sizeof(SkIPoint16);
|
||||
|
||||
// position + local coord
|
||||
static const size_t kColorTextVASize = sizeof(SkPoint) + sizeof(SkIPoint16);
|
||||
static const size_t kGrayTextVASize = sizeof(SkPoint) + sizeof(GrColor) + sizeof(SkIPoint16);
|
||||
static const int kVerticesPerGlyph = 4;
|
||||
static const int kIndicesPerGlyph = 6;
|
||||
|
||||
typedef GrAtlasTextContext::DistanceAdjustTable DistanceAdjustTable;
|
||||
typedef GrAtlasTextBlob Blob;
|
||||
typedef Blob::Run Run;
|
||||
typedef Run::SubRunInfo TextInfo;
|
||||
struct Geometry {
|
||||
Blob* fBlob;
|
||||
int fRun;
|
||||
int fSubRun;
|
||||
GrColor fColor;
|
||||
SkScalar fTransX;
|
||||
SkScalar fTransY;
|
||||
};
|
||||
|
||||
static GrAtlasTextBatch* CreateBitmap(GrMaskFormat maskFormat, int glyphCount,
|
||||
GrBatchFontCache* fontCache) {
|
||||
GrAtlasTextBatch* batch = new GrAtlasTextBatch;
|
||||
|
||||
batch->fFontCache = fontCache;
|
||||
switch (maskFormat) {
|
||||
case kA8_GrMaskFormat:
|
||||
batch->fMaskType = kGrayscaleCoverageMask_MaskType;
|
||||
break;
|
||||
case kA565_GrMaskFormat:
|
||||
batch->fMaskType = kLCDCoverageMask_MaskType;
|
||||
break;
|
||||
case kARGB_GrMaskFormat:
|
||||
batch->fMaskType = kColorBitmapMask_MaskType;
|
||||
break;
|
||||
}
|
||||
batch->fBatch.fNumGlyphs = glyphCount;
|
||||
batch->fGeoCount = 1;
|
||||
batch->fFilteredColor = 0;
|
||||
batch->fFontCache = fontCache;
|
||||
batch->fUseBGR = false;
|
||||
return batch;
|
||||
}
|
||||
|
||||
static GrAtlasTextBatch* CreateDistanceField(int glyphCount, GrBatchFontCache* fontCache,
|
||||
const DistanceAdjustTable* distanceAdjustTable,
|
||||
SkColor filteredColor, bool isLCD,
|
||||
bool useBGR) {
|
||||
GrAtlasTextBatch* batch = new GrAtlasTextBatch;
|
||||
|
||||
batch->fFontCache = fontCache;
|
||||
batch->fMaskType = isLCD ? kLCDDistanceField_MaskType : kGrayscaleDistanceField_MaskType;
|
||||
batch->fDistanceAdjustTable.reset(SkRef(distanceAdjustTable));
|
||||
batch->fFilteredColor = filteredColor;
|
||||
batch->fUseBGR = useBGR;
|
||||
batch->fBatch.fNumGlyphs = glyphCount;
|
||||
batch->fGeoCount = 1;
|
||||
return batch;
|
||||
}
|
||||
|
||||
// to avoid even the initial copy of the struct, we have a getter for the first item which
|
||||
// is used to seed the batch with its initial geometry. After seeding, the client should call
|
||||
// init() so the Batch can initialize itself
|
||||
Geometry& geometry() { return fGeoData[0]; }
|
||||
|
||||
void init() {
|
||||
const Geometry& geo = fGeoData[0];
|
||||
fBatch.fColor = geo.fColor;
|
||||
fBatch.fViewMatrix = geo.fBlob->fViewMatrix;
|
||||
|
||||
// We don't yet position distance field text on the cpu, so we have to map the vertex bounds
|
||||
// into device space
|
||||
const Run& run = geo.fBlob->fRuns[geo.fRun];
|
||||
if (run.fSubRunInfo[geo.fSubRun].fDrawAsDistanceFields) {
|
||||
SkRect bounds = run.fVertexBounds;
|
||||
fBatch.fViewMatrix.mapRect(&bounds);
|
||||
this->setBounds(bounds);
|
||||
} else {
|
||||
this->setBounds(run.fVertexBounds);
|
||||
}
|
||||
}
|
||||
|
||||
const char* name() const override { return "TextBatch"; }
|
||||
|
||||
SkString dumpInfo() const override;
|
||||
|
||||
void getInvariantOutputColor(GrInitInvariantOutput* out) const override;
|
||||
|
||||
void getInvariantOutputCoverage(GrInitInvariantOutput* out) const override;
|
||||
|
||||
static size_t GetVertexStride(GrMaskFormat maskFormat) {
|
||||
switch (maskFormat) {
|
||||
case kA8_GrMaskFormat:
|
||||
return kGrayTextVASize;
|
||||
case kARGB_GrMaskFormat:
|
||||
return kColorTextVASize;
|
||||
default:
|
||||
return kLCDTextVASize;
|
||||
}
|
||||
}
|
||||
|
||||
static size_t GetVertexStrideDf(GrMaskFormat maskFormat, bool useLCDText) {
|
||||
SkASSERT(maskFormat == kA8_GrMaskFormat);
|
||||
if (useLCDText) {
|
||||
return kLCDTextVASize;
|
||||
} else {
|
||||
return kGrayTextVASize;
|
||||
}
|
||||
}
|
||||
|
||||
private:
|
||||
void initBatchTracker(const GrPipelineOptimizations& opt) override;
|
||||
|
||||
struct FlushInfo {
|
||||
SkAutoTUnref<const GrVertexBuffer> fVertexBuffer;
|
||||
SkAutoTUnref<const GrIndexBuffer> fIndexBuffer;
|
||||
int fGlyphsToFlush;
|
||||
int fVertexOffset;
|
||||
};
|
||||
|
||||
void onPrepareDraws(Target* target) override;
|
||||
|
||||
GrAtlasTextBatch() : INHERITED(ClassID()) {} // initialized in factory functions.
|
||||
|
||||
~GrAtlasTextBatch() {
|
||||
for (int i = 0; i < fGeoCount; i++) {
|
||||
fGeoData[i].fBlob->unref();
|
||||
}
|
||||
}
|
||||
|
||||
GrMaskFormat maskFormat() const {
|
||||
switch (fMaskType) {
|
||||
case kLCDCoverageMask_MaskType:
|
||||
return kA565_GrMaskFormat;
|
||||
case kColorBitmapMask_MaskType:
|
||||
return kARGB_GrMaskFormat;
|
||||
case kGrayscaleCoverageMask_MaskType:
|
||||
case kGrayscaleDistanceField_MaskType:
|
||||
case kLCDDistanceField_MaskType:
|
||||
return kA8_GrMaskFormat;
|
||||
}
|
||||
return kA8_GrMaskFormat; // suppress warning
|
||||
}
|
||||
|
||||
bool usesDistanceFields() const {
|
||||
return kGrayscaleDistanceField_MaskType == fMaskType ||
|
||||
kLCDDistanceField_MaskType == fMaskType;
|
||||
}
|
||||
|
||||
bool isLCD() const {
|
||||
return kLCDCoverageMask_MaskType == fMaskType ||
|
||||
kLCDDistanceField_MaskType == fMaskType;
|
||||
}
|
||||
|
||||
inline void regenerateTextureCoords(GrGlyph* glyph, intptr_t vertex, size_t vertexStride);
|
||||
|
||||
inline void regenerateColors(intptr_t vertex, size_t vertexStride, GrColor color);
|
||||
|
||||
inline void regeneratePositions(intptr_t vertex, size_t vertexStride, SkScalar transX,
|
||||
SkScalar transY);
|
||||
|
||||
inline void flush(GrVertexBatch::Target* target, FlushInfo* flushInfo);
|
||||
|
||||
GrColor color() const { return fBatch.fColor; }
|
||||
const SkMatrix& viewMatrix() const { return fBatch.fViewMatrix; }
|
||||
bool usesLocalCoords() const { return fBatch.fUsesLocalCoords; }
|
||||
int numGlyphs() const { return fBatch.fNumGlyphs; }
|
||||
|
||||
bool onCombineIfPossible(GrBatch* t, const GrCaps& caps) override;
|
||||
|
||||
// TODO just use class params
|
||||
// TODO trying to figure out why lcd is so whack
|
||||
GrGeometryProcessor* setupDfProcessor(const SkMatrix& viewMatrix, SkColor filteredColor,
|
||||
GrColor color, GrTexture* texture);
|
||||
|
||||
struct BatchTracker {
|
||||
GrColor fColor;
|
||||
SkMatrix fViewMatrix;
|
||||
bool fUsesLocalCoords;
|
||||
bool fColorIgnored;
|
||||
bool fCoverageIgnored;
|
||||
int fNumGlyphs;
|
||||
};
|
||||
|
||||
BatchTracker fBatch;
|
||||
// The minimum number of Geometry we will try to allocate.
|
||||
enum { kMinGeometryAllocated = 4 };
|
||||
SkAutoSTMalloc<kMinGeometryAllocated, Geometry> fGeoData;
|
||||
int fGeoCount;
|
||||
|
||||
enum MaskType {
|
||||
kGrayscaleCoverageMask_MaskType,
|
||||
kLCDCoverageMask_MaskType,
|
||||
kColorBitmapMask_MaskType,
|
||||
kGrayscaleDistanceField_MaskType,
|
||||
kLCDDistanceField_MaskType,
|
||||
} fMaskType;
|
||||
bool fUseBGR; // fold this into the enum?
|
||||
|
||||
GrBatchFontCache* fFontCache;
|
||||
|
||||
// Distance field properties
|
||||
SkAutoTUnref<const DistanceAdjustTable> fDistanceAdjustTable;
|
||||
SkColor fFilteredColor;
|
||||
|
||||
typedef GrVertexBatch INHERITED;
|
||||
};
|
||||
|
||||
#endif
|
Loading…
Reference in New Issue
Block a user