Revert "Make TextureOp use multitexturing to batch draws of different SkImages."

This reverts commit 2e50d0f5f9.

Reason for revert: Shader compilation error

Original change's description:
> Make TextureOp use multitexturing to batch draws of different SkImages.
> 
> On a benchmark drawing small texture backed images this shows a 50% improvement on a Pixel XL 2016 and a little better than that on a Z840. 
> 
> Change-Id: I5c307ef0d8615aeae67bae7393874ad7e52eb233
> Reviewed-on: https://skia-review.googlesource.com/42121
> Reviewed-by: Brian Osman <brianosman@google.com>
> Commit-Queue: Brian Salomon <bsalomon@google.com>

TBR=bsalomon@google.com,brianosman@google.com

Change-Id: I28b9a139627e2492a2af53dd82fc8c43be94464b
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://skia-review.googlesource.com/43920
Reviewed-by: Robert Phillips <robertphillips@google.com>
Commit-Queue: Robert Phillips <robertphillips@google.com>
This commit is contained in:
Robert Phillips 2017-09-07 21:11:05 +00:00 committed by Skia Commit-Bot
parent 54c78afb3f
commit 4e95a88c83

View File

@ -7,7 +7,6 @@
#include "GrTextureOp.h"
#include "GrAppliedClip.h"
#include "GrCaps.h"
#include "GrDrawOpTest.h"
#include "GrGeometryProcessor.h"
#include "GrMeshDrawOp.h"
@ -16,10 +15,8 @@
#include "GrResourceProvider.h"
#include "GrShaderCaps.h"
#include "GrTexture.h"
#include "GrTexturePriv.h"
#include "GrTextureProxy.h"
#include "SkGr.h"
#include "SkMathPriv.h"
#include "glsl/GrGLSLColorSpaceXformHelper.h"
#include "glsl/GrGLSLGeometryProcessor.h"
#include "glsl/GrGLSLVarying.h"
@ -38,42 +35,11 @@ public:
SkPoint fTextureCoords;
GrColor fColor;
};
struct MultiTextureVertex {
SkPoint fPosition;
int fTextureIdx;
SkPoint fTextureCoords;
GrColor fColor;
};
// Maximum number of textures supported by this op. Must also be checked against the caps
// limit. These numbers were based on some limited experiments on a HP Z840 and Pixel XL 2016
// and could probably use more tuning.
#ifdef SK_BUILD_FOR_ANDROID
static constexpr int kMaxTextures = 4;
#else
static constexpr int kMaxTextures = 8;
#endif
static int SupportsMultitexture(const GrShaderCaps& caps) { return caps.integerSupport(); }
static sk_sp<GrGeometryProcessor> Make(sk_sp<GrTextureProxy> proxies[], int proxyCnt,
static sk_sp<GrGeometryProcessor> Make(sk_sp<GrTextureProxy> proxy,
sk_sp<GrColorSpaceXform> csxf,
const GrSamplerState::Filter filters[],
const GrShaderCaps& caps) {
// We use placement new to avoid always allocating space for kMaxTextures TextureSampler
// instances.
int samplerCnt = NumSamplersToUse(proxyCnt, caps);
size_t size = sizeof(TextureGeometryProcessor) + sizeof(TextureSampler) * (samplerCnt - 1);
void* mem = GrGeometryProcessor::operator new(size);
return sk_sp<TextureGeometryProcessor>(new (mem) TextureGeometryProcessor(
proxies, proxyCnt, samplerCnt, std::move(csxf), filters, caps));
}
~TextureGeometryProcessor() override {
int cnt = this->numTextureSamplers();
for (int i = 1; i < cnt; ++i) {
fSamplers[i].~TextureSampler();
}
GrSamplerState::Filter filter) {
return sk_sp<TextureGeometryProcessor>(
new TextureGeometryProcessor(std::move(proxy), std::move(csxf), filter));
}
const char* name() const override { return "TextureGeometryProcessor"; }
@ -118,35 +84,12 @@ public:
args.fFragBuilder->codeAppend("highp float2 texCoord;");
args.fVaryingHandler->addPassThroughAttribute(&textureGP.fTextureCoords, "texCoord",
kHigh_GrSLPrecision);
if (textureGP.numTextureSamplers() > 1) {
SkASSERT(args.fShaderCaps->integerSupport());
args.fFragBuilder->codeAppend("int texIdx;");
if (args.fShaderCaps->flatInterpolationSupport()) {
args.fVaryingHandler->addFlatPassThroughAttribute(&textureGP.fTextureIdx,
"texIdx");
} else {
args.fVaryingHandler->addPassThroughAttribute(&textureGP.fTextureIdx,
"texIdx");
}
args.fFragBuilder->codeAppend("switch (texIdx) {");
for (int i = 0; i < textureGP.numTextureSamplers(); ++i) {
args.fFragBuilder->codeAppendf("case %d: %s = ", i, args.fOutputColor);
args.fFragBuilder->appendTextureLookupAndModulate(args.fOutputColor,
args.fTexSamplers[i],
"texCoord",
kVec2f_GrSLType,
&fColorSpaceXformHelper);
args.fFragBuilder->codeAppend("; break;");
}
args.fFragBuilder->codeAppend("}");
} else {
args.fFragBuilder->codeAppendf("%s = ", args.fOutputColor);
args.fFragBuilder->appendTextureLookupAndModulate(args.fOutputColor,
args.fTexSamplers[0],
"texCoord",
kVec2f_GrSLType,
&fColorSpaceXformHelper);
}
args.fFragBuilder->codeAppendf("%s = ", args.fOutputColor);
args.fFragBuilder->appendTextureLookupAndModulate(args.fOutputColor,
args.fTexSamplers[0],
"texCoord",
kVec2f_GrSLType,
&fColorSpaceXformHelper);
args.fFragBuilder->codeAppend(";");
args.fFragBuilder->codeAppendf("%s = float4(1);", args.fOutputCoverage);
}
@ -156,60 +99,23 @@ public:
}
private:
// This exists to reduce the number of shaders generated. It does some rounding of sampler
// counts.
static int NumSamplersToUse(int numRealProxies, const GrShaderCaps& caps) {
SkASSERT(numRealProxies > 0 && numRealProxies <= kMaxTextures &&
numRealProxies <= caps.maxFragmentSamplers());
if (1 == numRealProxies) {
return 1;
}
if (numRealProxies <= 4) {
return 4;
}
// Round to the next power of 2 and then clamp to kMaxTextures and the max allowed by caps.
return SkTMin(SkNextPow2(numRealProxies), SkTMin(kMaxTextures, caps.maxFragmentSamplers()));
}
TextureGeometryProcessor(sk_sp<GrTextureProxy> proxies[], int proxyCnt, int samplerCnt,
sk_sp<GrColorSpaceXform> csxf, const GrSamplerState::Filter filters[],
const GrShaderCaps& caps)
: fColorSpaceXform(std::move(csxf)) {
SkASSERT(proxyCnt > 0 && samplerCnt >= proxyCnt);
TextureGeometryProcessor(sk_sp<GrTextureProxy> proxy, sk_sp<GrColorSpaceXform> csxf,
GrSamplerState::Filter filter)
: fSampler(std::move(proxy), filter), fColorSpaceXform(std::move(csxf)) {
this->initClassID<TextureGeometryProcessor>();
fPositions =
this->addVertexAttrib("position", kVec2f_GrVertexAttribType, kHigh_GrSLPrecision);
fSamplers[0].reset(std::move(proxies[0]), filters[0]);
this->addTextureSampler(&fSamplers[0]);
for (int i = 1; i < proxyCnt; ++i) {
// This class has one sampler built in, the rest come from memory this processor was
// placement-newed into and so haven't been constructed.
new (&fSamplers[i]) TextureSampler(std::move(proxies[i]), filters[i]);
this->addTextureSampler(&fSamplers[i]);
}
if (samplerCnt > 1) {
// Here we initialize any extra samplers by repeating the last one samplerCnt - proxyCnt
// times.
GrTextureProxy* dupeProxy = fSamplers[proxyCnt - 1].proxy();
for (int i = proxyCnt; i < samplerCnt; ++i) {
new (&fSamplers[i]) TextureSampler(sk_ref_sp(dupeProxy), filters[proxyCnt - 1]);
this->addTextureSampler(&fSamplers[i]);
}
SkASSERT(caps.integerSupport());
fTextureIdx = this->addVertexAttrib("textureIdx", kInt_GrVertexAttribType);
}
fTextureCoords = this->addVertexAttrib("textureCoords", kVec2f_GrVertexAttribType,
kHigh_GrSLPrecision);
fColors = this->addVertexAttrib("color", kVec4ub_GrVertexAttribType);
this->addTextureSampler(&fSampler);
}
Attribute fPositions;
Attribute fTextureIdx;
Attribute fTextureCoords;
Attribute fColors;
TextureSampler fSampler;
sk_sp<GrColorSpaceXform> fColorSpaceXform;
TextureSampler fSamplers[1];
};
/**
@ -228,41 +134,24 @@ public:
allowSRBInputs));
}
~TextureOp() override {
if (fFinalized) {
auto proxies = this->proxies();
for (int i = 0; i < fProxyCnt; ++i) {
proxies[i]->completedRead();
}
if (fProxyCnt > 1) {
delete[] reinterpret_cast<const char*>(proxies);
}
} else {
SkASSERT(1 == fProxyCnt);
fProxy0->unref();
}
}
~TextureOp() override { fFinalized ? fProxy->completedRead() : fProxy->unref(); }
const char* name() const override { return "TextureOp"; }
SkString dumpInfo() const override {
SkString str;
str.appendf("AllowSRGBInputs: %d\n", fAllowSRGBInputs);
str.appendf("Filter: %d AllowSRGBInputs: %d\n", static_cast<int>(fFilter),
fAllowSRGBInputs);
str.appendf("# draws: %d\n", fDraws.count());
auto proxies = this->proxies();
for (int i = 0; i < fProxyCnt; ++i) {
str.appendf("Proxy ID %d: %d, Filter: %d\n", i, proxies[i]->uniqueID().asUInt(),
static_cast<int>(this->filters()[i]));
}
for (int i = 0; i < fDraws.count(); ++i) {
const Draw& draw = fDraws[i];
str.appendf(
"%d: Color: 0x%08x, ProxyIdx: %d, TexRect [L: %.2f, T: %.2f, R: %.2f, B: %.2f] "
"Quad [(%.2f, %.2f), (%.2f, %.2f), (%.2f, %.2f), (%.2f, %.2f)]\n",
i, draw.fColor, draw.fTextureIdx, draw.fSrcRect.fLeft, draw.fSrcRect.fTop,
draw.fSrcRect.fRight, draw.fSrcRect.fBottom, draw.fQuad.points()[0].fX,
draw.fQuad.points()[0].fY, draw.fQuad.points()[1].fX, draw.fQuad.points()[1].fY,
draw.fQuad.points()[2].fX, draw.fQuad.points()[2].fY, draw.fQuad.points()[3].fX,
"%d: Color: 0x%08x, TexRect [L: %.2f, T: %.2f, R: %.2f, B: %.2f] Quad [(%.2f, "
"%.2f), (%.2f, %.2f), (%.2f, %.2f), (%.2f, %.2f)]\n",
i, draw.fColor, draw.fSrcRect.fLeft, draw.fSrcRect.fTop, draw.fSrcRect.fRight,
draw.fSrcRect.fBottom, draw.fQuad.points()[0].fX, draw.fQuad.points()[0].fY,
draw.fQuad.points()[1].fX, draw.fQuad.points()[1].fY, draw.fQuad.points()[2].fX,
draw.fQuad.points()[2].fY, draw.fQuad.points()[3].fX,
draw.fQuad.points()[3].fY);
}
str += INHERITED::dumpInfo();
@ -271,10 +160,9 @@ public:
RequiresDstTexture finalize(const GrCaps& caps, const GrAppliedClip* clip) override {
SkASSERT(!fFinalized);
SkASSERT(1 == fProxyCnt);
fFinalized = true;
fProxy0->addPendingRead();
fProxy0->unref();
fProxy->addPendingRead();
fProxy->unref();
return RequiresDstTexture::kNo;
}
@ -283,21 +171,17 @@ public:
DEFINE_OP_CLASS_ID
private:
static constexpr int kMaxTextures = TextureGeometryProcessor::kMaxTextures;
TextureOp(sk_sp<GrTextureProxy> proxy, GrSamplerState::Filter filter, GrColor color,
const SkRect& srcRect, const SkRect& dstRect, const SkMatrix& viewMatrix,
sk_sp<GrColorSpaceXform> csxf, bool allowSRGBInputs)
: INHERITED(ClassID())
, fProxy(proxy.release())
, fFilter(filter)
, fColorSpaceXform(std::move(csxf))
, fProxy0(proxy.release())
, fFilter0(filter)
, fProxyCnt(1)
, fFinalized(false)
, fAllowSRGBInputs(allowSRGBInputs) {
Draw& draw = fDraws.push_back();
draw.fSrcRect = srcRect;
draw.fTextureIdx = 0;
draw.fColor = color;
draw.fQuad.setFromMappedRect(dstRect, viewMatrix);
SkRect bounds;
@ -306,19 +190,11 @@ private:
}
void onPrepareDraws(Target* target) override {
sk_sp<GrTextureProxy> proxiesSPs[kMaxTextures];
auto proxies = this->proxies();
auto filters = this->filters();
for (int i = 0; i < fProxyCnt; ++i) {
if (!proxies[i]->instantiate(target->resourceProvider())) {
return;
}
proxiesSPs[i] = sk_ref_sp(proxies[i]);
if (!fProxy->instantiate(target->resourceProvider())) {
return;
}
sk_sp<GrGeometryProcessor> gp =
TextureGeometryProcessor::Make(proxiesSPs, fProxyCnt, std::move(fColorSpaceXform),
filters, *target->caps().shaderCaps());
sk_sp<GrGeometryProcessor> gp = TextureGeometryProcessor::Make(
sk_ref_sp(fProxy), std::move(fColorSpaceXform), fFilter);
GrPipeline::InitArgs args;
args.fProxy = target->proxy();
args.fCaps = &target->caps();
@ -326,11 +202,15 @@ private:
args.fFlags = fAllowSRGBInputs ? GrPipeline::kAllowSRGBInputs_Flag : 0;
const GrPipeline* pipeline = target->allocPipeline(args, GrProcessorSet::MakeEmptySet(),
target->detachAppliedClip());
using Vertex = TextureGeometryProcessor::Vertex;
SkASSERT(gp->getVertexStride() == sizeof(Vertex));
int vstart;
const GrBuffer* vbuffer;
void* vdata = target->makeVertexSpace(gp->getVertexStride(), 4 * fDraws.count(), &vbuffer,
&vstart);
if (!vdata) {
auto vertices = (Vertex*)target->makeVertexSpace(sizeof(Vertex), 4 * fDraws.count(),
&vbuffer, &vstart);
if (!vertices) {
SkDebugf("Could not allocate vertices\n");
return;
}
@ -342,75 +222,31 @@ private:
return;
}
}
GrTexture* texture = fProxy->priv().peekTexture();
float iw = 1.f / texture->width();
float ih = 1.f / texture->height();
if (fDraws.count() > 1) {
if (1 == fProxyCnt) {
SkASSERT(gp->getVertexStride() == sizeof(TextureGeometryProcessor::Vertex));
for (int i = 0; i < fDraws.count(); ++i) {
auto vertices = static_cast<TextureGeometryProcessor::Vertex*>(vdata);
GrTexture* texture = proxies[0]->priv().peekTexture();
float iw = 1.f / texture->width();
float ih = 1.f / texture->height();
float tl = iw * fDraws[i].fSrcRect.fLeft;
float tr = iw * fDraws[i].fSrcRect.fRight;
float tt = ih * fDraws[i].fSrcRect.fTop;
float tb = ih * fDraws[i].fSrcRect.fBottom;
if (proxies[0]->origin() == kBottomLeft_GrSurfaceOrigin) {
tt = 1.f - tt;
tb = 1.f - tb;
}
vertices[0 + 4 * i].fPosition = fDraws[i].fQuad.points()[0];
vertices[0 + 4 * i].fTextureCoords = {tl, tt};
vertices[0 + 4 * i].fColor = fDraws[i].fColor;
vertices[1 + 4 * i].fPosition = fDraws[i].fQuad.points()[1];
vertices[1 + 4 * i].fTextureCoords = {tl, tb};
vertices[1 + 4 * i].fColor = fDraws[i].fColor;
vertices[2 + 4 * i].fPosition = fDraws[i].fQuad.points()[2];
vertices[2 + 4 * i].fTextureCoords = {tr, tb};
vertices[2 + 4 * i].fColor = fDraws[i].fColor;
vertices[3 + 4 * i].fPosition = fDraws[i].fQuad.points()[3];
vertices[3 + 4 * i].fTextureCoords = {tr, tt};
vertices[3 + 4 * i].fColor = fDraws[i].fColor;
}
} else {
SkASSERT(gp->getVertexStride() ==
sizeof(TextureGeometryProcessor::MultiTextureVertex));
GrTexture* textures[kMaxTextures];
float iw[kMaxTextures];
float ih[kMaxTextures];
for (int t = 0; t < fProxyCnt; ++t) {
textures[t] = proxies[t]->priv().peekTexture();
iw[t] = 1.f / textures[t]->width();
ih[t] = 1.f / textures[t]->height();
}
for (int i = 0; i < fDraws.count(); ++i) {
int t = fDraws[i].fTextureIdx;
auto vertices =
static_cast<TextureGeometryProcessor::MultiTextureVertex*>(vdata);
float tl = iw[t] * fDraws[i].fSrcRect.fLeft;
float tr = iw[t] * fDraws[i].fSrcRect.fRight;
float tt = ih[t] * fDraws[i].fSrcRect.fTop;
float tb = ih[t] * fDraws[i].fSrcRect.fBottom;
if (proxies[t]->origin() == kBottomLeft_GrSurfaceOrigin) {
tt = 1.f - tt;
tb = 1.f - tb;
}
vertices[0 + 4 * i].fPosition = fDraws[i].fQuad.points()[0];
vertices[0 + 4 * i].fTextureIdx = t;
vertices[0 + 4 * i].fTextureCoords = {tl, tt};
vertices[0 + 4 * i].fColor = fDraws[i].fColor;
vertices[1 + 4 * i].fPosition = fDraws[i].fQuad.points()[1];
vertices[1 + 4 * i].fTextureIdx = t;
vertices[1 + 4 * i].fTextureCoords = {tl, tb};
vertices[1 + 4 * i].fColor = fDraws[i].fColor;
vertices[2 + 4 * i].fPosition = fDraws[i].fQuad.points()[2];
vertices[2 + 4 * i].fTextureIdx = t;
vertices[2 + 4 * i].fTextureCoords = {tr, tb};
vertices[2 + 4 * i].fColor = fDraws[i].fColor;
vertices[3 + 4 * i].fPosition = fDraws[i].fQuad.points()[3];
vertices[3 + 4 * i].fTextureIdx = t;
vertices[3 + 4 * i].fTextureCoords = {tr, tt};
vertices[3 + 4 * i].fColor = fDraws[i].fColor;
for (int i = 0; i < fDraws.count(); ++i) {
float tl = iw * fDraws[i].fSrcRect.fLeft;
float tr = iw * fDraws[i].fSrcRect.fRight;
float tt = ih * fDraws[i].fSrcRect.fTop;
float tb = ih * fDraws[i].fSrcRect.fBottom;
if (fProxy->origin() == kBottomLeft_GrSurfaceOrigin) {
tt = 1.f - tt;
tb = 1.f - tb;
}
vertices[0 + 4 * i].fPosition = fDraws[i].fQuad.points()[0];
vertices[0 + 4 * i].fTextureCoords = {tl, tt};
vertices[0 + 4 * i].fColor = fDraws[i].fColor;
vertices[1 + 4 * i].fPosition = fDraws[i].fQuad.points()[1];
vertices[1 + 4 * i].fTextureCoords = {tl, tb};
vertices[1 + 4 * i].fColor = fDraws[i].fColor;
vertices[2 + 4 * i].fPosition = fDraws[i].fQuad.points()[2];
vertices[2 + 4 * i].fTextureCoords = {tr, tb};
vertices[2 + 4 * i].fColor = fDraws[i].fColor;
vertices[3 + 4 * i].fPosition = fDraws[i].fQuad.points()[3];
vertices[3 + 4 * i].fTextureCoords = {tr, tt};
vertices[3 + 4 * i].fColor = fDraws[i].fColor;
}
GrMesh mesh(GrPrimitiveType::kTriangles);
mesh.setIndexedPatterned(ibuffer.get(), 6, 4, fDraws.count(),
@ -418,18 +254,11 @@ private:
mesh.setVertexData(vbuffer, vstart);
target->draw(gp.get(), pipeline, mesh);
} else {
// If there is only one draw then there can only be one proxy.
SkASSERT(1 == fProxyCnt);
SkASSERT(gp->getVertexStride() == sizeof(TextureGeometryProcessor::Vertex));
auto vertices = static_cast<TextureGeometryProcessor::Vertex*>(vdata);
GrTexture* texture = proxies[0]->priv().peekTexture();
float iw = 1.f / texture->width();
float ih = 1.f / texture->height();
float tl = iw * fDraws[0].fSrcRect.fLeft;
float tr = iw * fDraws[0].fSrcRect.fRight;
float tt = ih * fDraws[0].fSrcRect.fTop;
float tb = ih * fDraws[0].fSrcRect.fBottom;
if (proxies[0]->origin() == kBottomLeft_GrSurfaceOrigin) {
if (fProxy->origin() == kBottomLeft_GrSurfaceOrigin) {
tt = 1.f - tt;
tb = 1.f - tb;
}
@ -454,148 +283,30 @@ private:
bool onCombineIfPossible(GrOp* t, const GrCaps& caps) override {
const auto* that = t->cast<TextureOp>();
if (!GrColorSpaceXform::Equals(fColorSpaceXform.get(), that->fColorSpaceXform.get())) {
if (fProxy->uniqueID() != that->fProxy->uniqueID() || fFilter != that->fFilter ||
!GrColorSpaceXform::Equals(fColorSpaceXform.get(), that->fColorSpaceXform.get())) {
return false;
}
if (TextureGeometryProcessor::SupportsMultitexture(*caps.shaderCaps())) {
int map[kMaxTextures];
int numNewProxies = this->mergeProxies(that, map, *caps.shaderCaps());
if (numNewProxies < 0) {
return false;
}
if (1 == fProxyCnt && numNewProxies) {
void* mem = new char[(sizeof(GrSamplerState::Filter) + sizeof(GrTextureProxy*)) *
kMaxTextures];
auto proxies = reinterpret_cast<GrTextureProxy**>(mem);
auto filters = reinterpret_cast<GrSamplerState::Filter*>(proxies + kMaxTextures);
proxies[0] = fProxy0;
filters[0] = fFilter0;
fProxyArray = proxies;
}
fProxyCnt += numNewProxies;
auto thisProxies = fProxyArray;
auto thatProxies = that->proxies();
auto thatFilters = that->filters();
auto thisFilters = reinterpret_cast<GrSamplerState::Filter*>(thisProxies +
kMaxTextures);
for (int i = 0; i < that->fProxyCnt; ++i) {
if (map[i] < 0) {
thatProxies[i]->addPendingRead();
thisProxies[-map[i]] = thatProxies[i];
thisFilters[-map[i]] = thatFilters[i];
map[i] = -map[i];
}
}
int firstNewDraw = fDraws.count();
fDraws.push_back_n(that->fDraws.count(), that->fDraws.begin());
for (int i = firstNewDraw; i < fDraws.count(); ++i) {
fDraws[i].fTextureIdx = map[fDraws[i].fTextureIdx];
}
} else {
if (fProxy0->uniqueID() != that->fProxy0->uniqueID() || fFilter0 != that->fFilter0) {
return false;
}
fDraws.push_back_n(that->fDraws.count(), that->fDraws.begin());
}
fDraws.push_back_n(that->fDraws.count(), that->fDraws.begin());
this->joinBounds(*that);
return true;
}
/**
* Determines a mapping of indices from that's proxy array to this's proxy array. A negative map
* value means that's proxy should be added to this's proxy array at the absolute value of
* the map entry. If it is determined that the ops shouldn't combine their proxies then a
* negative value is returned. Otherwise, return value indicates the number of proxies that have
* to be added to this op or, equivalently, the number of negative entries in map.
*/
int mergeProxies(const TextureOp* that, int map[kMaxTextures], const GrShaderCaps& caps) const {
std::fill_n(map, kMaxTextures, -kMaxTextures);
int sharedProxyCnt = 0;
auto thisProxies = this->proxies();
auto thisFilters = this->filters();
auto thatProxies = that->proxies();
auto thatFilters = that->filters();
for (int i = 0; i < fProxyCnt; ++i) {
for (int j = 0; j < that->fProxyCnt; ++j) {
if (thisProxies[i]->uniqueID() == thatProxies[j]->uniqueID()) {
if (thisFilters[i] != thatFilters[j]) {
// In GL we don't currently support using the same texture with different
// samplers. If we added support for sampler objects and a cap bit to know
// it's ok to use different filter modes then we could support this.
// Otherwise, we could also only allow a single filter mode for each op
// instance.
return -1;
}
map[j] = i;
++sharedProxyCnt;
break;
}
}
}
int actualMaxTextures = SkTMin(caps.maxFragmentImageStorages(), kMaxTextures);
int newProxyCnt = that->fProxyCnt - sharedProxyCnt;
if (newProxyCnt + fProxyCnt > actualMaxTextures) {
return -1;
}
GrPixelConfig config = thisProxies[0]->config();
int nextSlot = fProxyCnt;
for (int j = 0; j < that->fProxyCnt; ++j) {
// We want to avoid making many shaders because of different permutations of shader
// based swizzle and sampler types. The approach taken here is to require the configs to
// be the same and to only allow already instantiated proxies that have the most
// common sampler type. Otherwise we don't merge.
if (thatProxies[j]->config() != config) {
return -1;
}
if (GrTexture* tex = thatProxies[j]->priv().peekTexture()) {
if (tex->texturePriv().samplerType() != kTexture2DSampler_GrSLType) {
return -1;
}
}
if (map[j] < 0) {
map[j] = -(nextSlot++);
}
}
return newProxyCnt;
}
GrTextureProxy* const* proxies() const { return fProxyCnt > 1 ? fProxyArray : &fProxy0; }
const GrSamplerState::Filter* filters() const {
if (fProxyCnt > 1) {
return reinterpret_cast<const GrSamplerState::Filter*>(fProxyArray + kMaxTextures);
}
return &fFilter0;
}
struct Draw {
SkRect fSrcRect;
int fTextureIdx;
GrQuad fQuad;
GrColor fColor;
};
SkSTArray<1, Draw, true> fDraws;
GrTextureProxy* fProxy;
GrSamplerState::Filter fFilter;
sk_sp<GrColorSpaceXform> fColorSpaceXform;
// Initially we store a single proxy ptr and a single filter. If we grow to have more than
// one proxy we instead store pointers to dynamically allocated arrays of size kMaxTextures
// followed by kMaxTextures filters.
union {
GrTextureProxy* fProxy0;
GrTextureProxy** fProxyArray;
};
// The next four members should pack.
GrSamplerState::Filter fFilter0;
uint8_t fProxyCnt;
// Used to track whether fProxy is ref'ed or has a pending IO after finalize() is called.
uint8_t fFinalized;
uint8_t fAllowSRGBInputs;
bool fFinalized : 1;
bool fAllowSRGBInputs : 1;
typedef GrMeshDrawOp INHERITED;
};
constexpr int TextureGeometryProcessor::kMaxTextures;
constexpr int TextureOp::kMaxTextures;
} // anonymous namespace
namespace GrTextureOp {