chromium/third_party/skia/src/gpu/ganesh/ops/AtlasTextOp.cpp

/*
 * 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 "src/gpu/ganesh/ops/AtlasTextOp.h"

#include "include/core/SkSamplingOptions.h"
#include "include/core/SkTypes.h"
#include "include/private/base/SkDebug.h"
#include "include/private/base/SkTArray.h"
#include "src/base/SkArenaAlloc.h"
#include "src/core/SkMatrixPriv.h"
#include "src/core/SkTraceEvent.h"
#include "src/gpu/ganesh/GrBufferAllocPool.h"
#include "src/gpu/ganesh/GrCaps.h"
#include "src/gpu/ganesh/GrColorSpaceXform.h"
#include "src/gpu/ganesh/GrGeometryProcessor.h"
#include "src/gpu/ganesh/GrMeshDrawTarget.h"
#include "src/gpu/ganesh/GrOpFlushState.h"
#include "src/gpu/ganesh/GrPaint.h"
#include "src/gpu/ganesh/GrPipeline.h"
#include "src/gpu/ganesh/GrProcessorAnalysis.h"
#include "src/gpu/ganesh/GrResourceProvider.h"
#include "src/gpu/ganesh/GrSamplerState.h"
#include "src/gpu/ganesh/GrSimpleMesh.h"
#include "src/gpu/ganesh/GrSurfaceProxy.h"
#include "src/gpu/ganesh/GrSurfaceProxyView.h"
#include "src/gpu/ganesh/GrUserStencilSettings.h"
#include "src/gpu/ganesh/effects/GrBitmapTextGeoProc.h"
#include "src/gpu/ganesh/effects/GrDistanceFieldGeoProc.h"
#include "src/gpu/ganesh/ops/GrDrawOp.h"
#include "src/gpu/ganesh/ops/GrSimpleMeshDrawOpHelper.h"
#include "src/gpu/ganesh/text/GrAtlasManager.h"
#include "src/text/gpu/DistanceFieldAdjustTable.h"
#include "src/text/gpu/GlyphVector.h"
#include "src/text/gpu/SubRunContainer.h"

#if defined(SK_GAMMA_APPLY_TO_A8)
#include "include/private/base/SkCPUTypes.h"
#include "src/core/SkMaskGamma.h"
#endif

#include <algorithm>
#include <functional>
#include <new>
#include <tuple>
#include <utility>

struct GrShaderCaps;

MaskFormat;

namespace skgpu::ganesh {

inline static constexpr int kVerticesPerGlyph = …;
inline static constexpr int kIndicesPerGlyph = …;

// If we have thread local, then cache memory for a single AtlasTextOp.
static thread_local void* gCache = …;
void* AtlasTextOp::operator new(size_t s) { … }

void AtlasTextOp::operator delete(void* bytes) noexcept { … }

void AtlasTextOp::ClearCache() { … }

AtlasTextOp::AtlasTextOp(MaskType maskType,
                         bool needsTransform,
                         int glyphCount,
                         SkRect deviceRect,
                         Geometry* geo,
                         const GrColorInfo& dstColorInfo,
                         GrPaint&& paint)
        : … { … }

AtlasTextOp::AtlasTextOp(MaskType maskType,
                         bool needsTransform,
                         int glyphCount,
                         SkRect deviceRect,
                         SkColor luminanceColor,
                         bool useGammaCorrectDistanceTable,
                         uint32_t DFGPFlags,
                         Geometry* geo,
                         GrPaint&& paint)
        : … { … }

auto AtlasTextOp::Geometry::Make(const sktext::gpu::AtlasSubRun& subRun,
                                 const SkMatrix& drawMatrix,
                                 SkPoint drawOrigin,
                                 SkIRect clipRect,
                                 sk_sp<SkRefCnt>&& supportData,
                                 const SkPMColor4f& color,
                                 SkArenaAlloc* alloc) -> Geometry* { … }

void AtlasTextOp::Geometry::fillVertexData(void *dst, int offset, int count) const { … }

void AtlasTextOp::visitProxies(const GrVisitProxyFunc& func) const { … }

#if defined(GPU_TEST_UTILS)
SkString AtlasTextOp::onDumpInfo() const {
    SkString str;
    int i = 0;
    for(Geometry* geom = fHead; geom != nullptr; geom = geom->fNext) {
        str.appendf("%d: Color: 0x%08x Trans: %.2f,%.2f\n",
                    i++,
                    geom->fColor.toBytes_RGBA(),
                    geom->fDrawOrigin.x(),
                    geom->fDrawOrigin.y());
    }

    str += fProcessors.dumpProcessors();
    return str;
}
#endif

GrDrawOp::FixedFunctionFlags AtlasTextOp::fixedFunctionFlags() const { … }

GrProcessorSet::Analysis AtlasTextOp::finalize(const GrCaps& caps,
                                               const GrAppliedClip* clip,
                                               GrClampType clampType) { … }

void AtlasTextOp::onPrepareDraws(GrMeshDrawTarget* target) { … }

void AtlasTextOp::onExecute(GrOpFlushState* flushState, const SkRect& chainBounds) { … }

void AtlasTextOp::createDrawForGeneratedGlyphs(GrMeshDrawTarget* target,
                                               FlushInfo* flushInfo) const { … }

GrOp::CombineResult AtlasTextOp::onCombineIfPossible(GrOp* t, SkArenaAlloc*, const GrCaps& caps) { … }

#if !defined(SK_DISABLE_SDF_TEXT)
GrGeometryProcessor* AtlasTextOp::setupDfProcessor(SkArenaAlloc* arena,
                                                   const GrShaderCaps& caps,
                                                   const SkMatrix& localMatrix,
                                                   const GrSurfaceProxyView* views,
                                                   unsigned int numActiveViews) const { … }
#endif // !defined(SK_DISABLE_SDF_TEXT)

} // namespace skgpu::ganesh