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skia2/tests/ReadPixelsTest.cpp
Robert Phillips 2a4acf328c Remove all internal uses of (and deprecate) SkSurface::getContext 
We are replacing GrContext with the GrDirectContext/GrRecordingContext
pair. This starts making that change visible to clients (and weaning
Skia off of GrContext).

Change-Id: I00cc9bf208499984de855a1646229bd7557fc925
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/300706
Reviewed-by: Adlai Holler <adlai@google.com>
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Robert Phillips <robertphillips@google.com>
2020-07-08 16:09:27 +00:00

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/*
* Copyright 2011 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "include/core/SkCanvas.h"
#include "include/core/SkImage.h"
#include "include/core/SkSurface.h"
#include "include/effects/SkGradientShader.h"
#include "include/gpu/GrDirectContext.h"
#include "include/private/SkColorData.h"
#include "include/private/SkHalf.h"
#include "include/private/SkImageInfoPriv.h"
#include "include/utils/SkNWayCanvas.h"
#include "src/core/SkAutoPixmapStorage.h"
#include "src/core/SkConvertPixels.h"
#include "src/core/SkMathPriv.h"
#include "src/gpu/GrContextPriv.h"
#include "src/gpu/GrImageInfo.h"
#include "src/gpu/GrSurfaceContext.h"
#include "tests/Test.h"
#include "tests/TestUtils.h"
#include "tools/ToolUtils.h"
#include "tools/gpu/BackendTextureImageFactory.h"
#include "tools/gpu/GrContextFactory.h"
#include "tools/gpu/ProxyUtils.h"
#include <initializer_list>
static const int DEV_W = 100, DEV_H = 100;
static const SkIRect DEV_RECT = SkIRect::MakeWH(DEV_W, DEV_H);
static const SkRect DEV_RECT_S = SkRect::MakeWH(DEV_W * SK_Scalar1,
DEV_H * SK_Scalar1);
static SkPMColor get_src_color(int x, int y) {
SkASSERT(x >= 0 && x < DEV_W);
SkASSERT(y >= 0 && y < DEV_H);
U8CPU r = x;
U8CPU g = y;
U8CPU b = 0xc;
U8CPU a = 0xff;
switch ((x+y) % 5) {
case 0:
a = 0xff;
break;
case 1:
a = 0x80;
break;
case 2:
a = 0xCC;
break;
case 4:
a = 0x01;
break;
case 3:
a = 0x00;
break;
}
return SkPremultiplyARGBInline(a, r, g, b);
}
static SkPMColor get_dst_bmp_init_color(int x, int y, int w) {
int n = y * w + x;
U8CPU b = n & 0xff;
U8CPU g = (n >> 8) & 0xff;
U8CPU r = (n >> 16) & 0xff;
return SkPackARGB32(0xff, r, g , b);
}
// TODO: Make this consider both ATs
static SkPMColor convert_to_pmcolor(SkColorType ct, SkAlphaType at, const uint32_t* addr,
bool* doUnpremul) {
*doUnpremul = (kUnpremul_SkAlphaType == at);
const uint8_t* c = reinterpret_cast<const uint8_t*>(addr);
U8CPU a,r,g,b;
switch (ct) {
case kBGRA_8888_SkColorType:
b = static_cast<U8CPU>(c[0]);
g = static_cast<U8CPU>(c[1]);
r = static_cast<U8CPU>(c[2]);
a = static_cast<U8CPU>(c[3]);
break;
case kRGB_888x_SkColorType: // fallthrough
case kRGBA_8888_SkColorType:
r = static_cast<U8CPU>(c[0]);
g = static_cast<U8CPU>(c[1]);
b = static_cast<U8CPU>(c[2]);
// We set this even when for kRGB_888x because our caller will validate that it is 0xff.
a = static_cast<U8CPU>(c[3]);
break;
default:
SkDEBUGFAIL("Unexpected colortype");
return 0;
}
if (*doUnpremul) {
r = SkMulDiv255Ceiling(r, a);
g = SkMulDiv255Ceiling(g, a);
b = SkMulDiv255Ceiling(b, a);
}
return SkPackARGB32(a, r, g, b);
}
static SkBitmap make_src_bitmap() {
static SkBitmap bmp;
if (bmp.isNull()) {
bmp.allocN32Pixels(DEV_W, DEV_H);
intptr_t pixels = reinterpret_cast<intptr_t>(bmp.getPixels());
for (int y = 0; y < DEV_H; ++y) {
for (int x = 0; x < DEV_W; ++x) {
SkPMColor* pixel = reinterpret_cast<SkPMColor*>(pixels + y * bmp.rowBytes() + x * bmp.bytesPerPixel());
*pixel = get_src_color(x, y);
}
}
}
return bmp;
}
static void fill_src_canvas(SkCanvas* canvas) {
canvas->save();
canvas->setMatrix(SkMatrix::I());
canvas->clipRect(DEV_RECT_S, kReplace_SkClipOp);
SkPaint paint;
paint.setBlendMode(SkBlendMode::kSrc);
canvas->drawBitmap(make_src_bitmap(), 0, 0, &paint);
canvas->restore();
}
static void fill_dst_bmp_with_init_data(SkBitmap* bitmap) {
int w = bitmap->width();
int h = bitmap->height();
intptr_t pixels = reinterpret_cast<intptr_t>(bitmap->getPixels());
for (int y = 0; y < h; ++y) {
for (int x = 0; x < w; ++x) {
SkPMColor initColor = get_dst_bmp_init_color(x, y, w);
if (kAlpha_8_SkColorType == bitmap->colorType()) {
uint8_t* alpha = reinterpret_cast<uint8_t*>(pixels + y * bitmap->rowBytes() + x);
*alpha = SkGetPackedA32(initColor);
} else {
SkPMColor* pixel = reinterpret_cast<SkPMColor*>(pixels + y * bitmap->rowBytes() + x * bitmap->bytesPerPixel());
*pixel = initColor;
}
}
}
}
static bool check_read_pixel(SkPMColor a, SkPMColor b, bool didPremulConversion) {
if (!didPremulConversion) {
return a == b;
}
int32_t aA = static_cast<int32_t>(SkGetPackedA32(a));
int32_t aR = static_cast<int32_t>(SkGetPackedR32(a));
int32_t aG = static_cast<int32_t>(SkGetPackedG32(a));
int32_t aB = SkGetPackedB32(a);
int32_t bA = static_cast<int32_t>(SkGetPackedA32(b));
int32_t bR = static_cast<int32_t>(SkGetPackedR32(b));
int32_t bG = static_cast<int32_t>(SkGetPackedG32(b));
int32_t bB = static_cast<int32_t>(SkGetPackedB32(b));
return aA == bA &&
SkAbs32(aR - bR) <= 1 &&
SkAbs32(aG - bG) <= 1 &&
SkAbs32(aB - bB) <= 1;
}
// checks the bitmap contains correct pixels after the readPixels
// if the bitmap was prefilled with pixels it checks that these weren't
// overwritten in the area outside the readPixels.
static bool check_read(skiatest::Reporter* reporter, const SkBitmap& bitmap, int x, int y,
bool checkSurfacePixels, bool checkBitmapPixels,
SkImageInfo surfaceInfo) {
SkAlphaType bmpAT = bitmap.alphaType();
SkColorType bmpCT = bitmap.colorType();
SkASSERT(!bitmap.isNull());
SkASSERT(checkSurfacePixels || checkBitmapPixels);
int bw = bitmap.width();
int bh = bitmap.height();
SkIRect srcRect = SkIRect::MakeXYWH(x, y, bw, bh);
SkIRect clippedSrcRect = DEV_RECT;
if (!clippedSrcRect.intersect(srcRect)) {
clippedSrcRect.setEmpty();
}
if (kAlpha_8_SkColorType == bmpCT) {
for (int by = 0; by < bh; ++by) {
for (int bx = 0; bx < bw; ++bx) {
int devx = bx + srcRect.fLeft;
int devy = by + srcRect.fTop;
const uint8_t* alpha = bitmap.getAddr8(bx, by);
if (clippedSrcRect.contains(devx, devy)) {
if (checkSurfacePixels) {
uint8_t surfaceAlpha = (surfaceInfo.alphaType() == kOpaque_SkAlphaType)
? 0xFF
: SkGetPackedA32(get_src_color(devx, devy));
if (surfaceAlpha != *alpha) {
ERRORF(reporter,
"Expected readback alpha (%d, %d) value 0x%02x, got 0x%02x. ",
bx, by, surfaceAlpha, *alpha);
return false;
}
}
} else if (checkBitmapPixels) {
uint32_t origDstAlpha = SkGetPackedA32(get_dst_bmp_init_color(bx, by, bw));
if (origDstAlpha != *alpha) {
ERRORF(reporter, "Expected clipped out area of readback to be unchanged. "
"Expected 0x%02x, got 0x%02x", origDstAlpha, *alpha);
return false;
}
}
}
}
return true;
}
for (int by = 0; by < bh; ++by) {
for (int bx = 0; bx < bw; ++bx) {
int devx = bx + srcRect.fLeft;
int devy = by + srcRect.fTop;
const uint32_t* pixel = bitmap.getAddr32(bx, by);
if (clippedSrcRect.contains(devx, devy)) {
if (checkSurfacePixels) {
SkPMColor surfacePMColor = get_src_color(devx, devy);
if (SkColorTypeIsAlphaOnly(surfaceInfo.colorType())) {
surfacePMColor &= 0xFF000000;
}
if (kOpaque_SkAlphaType == surfaceInfo.alphaType() || kOpaque_SkAlphaType == bmpAT) {
surfacePMColor |= 0xFF000000;
}
bool didPremul;
SkPMColor pmPixel = convert_to_pmcolor(bmpCT, bmpAT, pixel, &didPremul);
if (!check_read_pixel(pmPixel, surfacePMColor, didPremul)) {
ERRORF(reporter,
"Expected readback pixel (%d, %d) value 0x%08x, got 0x%08x. "
"Readback was unpremul: %d",
bx, by, surfacePMColor, pmPixel, didPremul);
return false;
}
}
} else if (checkBitmapPixels) {
uint32_t origDstPixel = get_dst_bmp_init_color(bx, by, bw);
if (origDstPixel != *pixel) {
ERRORF(reporter, "Expected clipped out area of readback to be unchanged. "
"Expected 0x%08x, got 0x%08x", origDstPixel, *pixel);
return false;
}
}
}
}
return true;
}
enum class TightRowBytes : bool { kNo, kYes };
static void init_bitmap(SkBitmap* bitmap, const SkIRect& rect, TightRowBytes tightRB,
SkColorType ct, SkAlphaType at) {
SkImageInfo info = SkImageInfo::Make(rect.size(), ct, at);
size_t rowBytes = 0;
if (tightRB == TightRowBytes::kNo) {
rowBytes = SkAlign4((info.width() + 16) * info.bytesPerPixel());
}
bitmap->allocPixels(info, rowBytes);
}
static const struct {
SkColorType fColorType;
SkAlphaType fAlphaType;
} gReadPixelsConfigs[] = {
{kRGBA_8888_SkColorType, kPremul_SkAlphaType},
{kRGBA_8888_SkColorType, kUnpremul_SkAlphaType},
{kRGB_888x_SkColorType, kOpaque_SkAlphaType},
{kBGRA_8888_SkColorType, kPremul_SkAlphaType},
{kBGRA_8888_SkColorType, kUnpremul_SkAlphaType},
{kAlpha_8_SkColorType, kPremul_SkAlphaType},
};
const SkIRect gReadPixelsTestRects[] = {
// entire thing
DEV_RECT,
// larger on all sides
SkIRect::MakeLTRB(-10, -10, DEV_W + 10, DEV_H + 10),
// fully contained
SkIRect::MakeLTRB(DEV_W / 4, DEV_H / 4, 3 * DEV_W / 4, 3 * DEV_H / 4),
// outside top left
SkIRect::MakeLTRB(-10, -10, -1, -1),
// touching top left corner
SkIRect::MakeLTRB(-10, -10, 0, 0),
// overlapping top left corner
SkIRect::MakeLTRB(-10, -10, DEV_W / 4, DEV_H / 4),
// overlapping top left and top right corners
SkIRect::MakeLTRB(-10, -10, DEV_W + 10, DEV_H / 4),
// touching entire top edge
SkIRect::MakeLTRB(-10, -10, DEV_W + 10, 0),
// overlapping top right corner
SkIRect::MakeLTRB(3 * DEV_W / 4, -10, DEV_W + 10, DEV_H / 4),
// contained in x, overlapping top edge
SkIRect::MakeLTRB(DEV_W / 4, -10, 3 * DEV_W / 4, DEV_H / 4),
// outside top right corner
SkIRect::MakeLTRB(DEV_W + 1, -10, DEV_W + 10, -1),
// touching top right corner
SkIRect::MakeLTRB(DEV_W, -10, DEV_W + 10, 0),
// overlapping top left and bottom left corners
SkIRect::MakeLTRB(-10, -10, DEV_W / 4, DEV_H + 10),
// touching entire left edge
SkIRect::MakeLTRB(-10, -10, 0, DEV_H + 10),
// overlapping bottom left corner
SkIRect::MakeLTRB(-10, 3 * DEV_H / 4, DEV_W / 4, DEV_H + 10),
// contained in y, overlapping left edge
SkIRect::MakeLTRB(-10, DEV_H / 4, DEV_W / 4, 3 * DEV_H / 4),
// outside bottom left corner
SkIRect::MakeLTRB(-10, DEV_H + 1, -1, DEV_H + 10),
// touching bottom left corner
SkIRect::MakeLTRB(-10, DEV_H, 0, DEV_H + 10),
// overlapping bottom left and bottom right corners
SkIRect::MakeLTRB(-10, 3 * DEV_H / 4, DEV_W + 10, DEV_H + 10),
// touching entire left edge
SkIRect::MakeLTRB(0, DEV_H, DEV_W, DEV_H + 10),
// overlapping bottom right corner
SkIRect::MakeLTRB(3 * DEV_W / 4, 3 * DEV_H / 4, DEV_W + 10, DEV_H + 10),
// overlapping top right and bottom right corners
SkIRect::MakeLTRB(3 * DEV_W / 4, -10, DEV_W + 10, DEV_H + 10),
};
bool read_should_succeed(const SkIRect& srcRect, const SkImageInfo& dstInfo,
const SkImageInfo& srcInfo) {
return SkIRect::Intersects(srcRect, DEV_RECT) && SkImageInfoValidConversion(dstInfo, srcInfo);
}
static void test_readpixels(skiatest::Reporter* reporter, const sk_sp<SkSurface>& surface,
const SkImageInfo& surfaceInfo) {
SkCanvas* canvas = surface->getCanvas();
fill_src_canvas(canvas);
for (size_t rect = 0; rect < SK_ARRAY_COUNT(gReadPixelsTestRects); ++rect) {
const SkIRect& srcRect = gReadPixelsTestRects[rect];
for (auto tightRB : {TightRowBytes::kYes, TightRowBytes::kNo}) {
for (size_t c = 0; c < SK_ARRAY_COUNT(gReadPixelsConfigs); ++c) {
SkBitmap bmp;
init_bitmap(&bmp, srcRect, tightRB, gReadPixelsConfigs[c].fColorType,
gReadPixelsConfigs[c].fAlphaType);
// if the bitmap has pixels allocated before the readPixels,
// note that and fill them with pattern
bool startsWithPixels = !bmp.isNull();
if (startsWithPixels) {
fill_dst_bmp_with_init_data(&bmp);
}
uint32_t idBefore = surface->generationID();
bool success = surface->readPixels(bmp, srcRect.fLeft, srcRect.fTop);
uint32_t idAfter = surface->generationID();
// we expect to succeed when the read isn't fully clipped out and the infos are
// compatible.
bool expectSuccess = read_should_succeed(srcRect, bmp.info(), surfaceInfo);
// determine whether we expected the read to succeed.
REPORTER_ASSERT(reporter, expectSuccess == success,
"Read succeed=%d unexpectedly, src ct/at: %d/%d, dst ct/at: %d/%d",
success, surfaceInfo.colorType(), surfaceInfo.alphaType(),
bmp.info().colorType(), bmp.info().alphaType());
// read pixels should never change the gen id
REPORTER_ASSERT(reporter, idBefore == idAfter);
if (success || startsWithPixels) {
check_read(reporter, bmp, srcRect.fLeft, srcRect.fTop, success,
startsWithPixels, surfaceInfo);
} else {
// if we had no pixels beforehand and the readPixels
// failed then our bitmap should still not have pixels
REPORTER_ASSERT(reporter, bmp.isNull());
}
}
}
}
}
DEF_TEST(ReadPixels, reporter) {
const SkImageInfo info = SkImageInfo::MakeN32Premul(DEV_W, DEV_H);
auto surface(SkSurface::MakeRaster(info));
test_readpixels(reporter, surface, info);
}
static void test_readpixels_texture(skiatest::Reporter* reporter,
std::unique_ptr<GrSurfaceContext> sContext,
const SkImageInfo& surfaceInfo) {
for (size_t rect = 0; rect < SK_ARRAY_COUNT(gReadPixelsTestRects); ++rect) {
const SkIRect& srcRect = gReadPixelsTestRects[rect];
for (auto tightRB : {TightRowBytes::kYes, TightRowBytes::kNo}) {
for (size_t c = 0; c < SK_ARRAY_COUNT(gReadPixelsConfigs); ++c) {
SkBitmap bmp;
init_bitmap(&bmp, srcRect, tightRB, gReadPixelsConfigs[c].fColorType,
gReadPixelsConfigs[c].fAlphaType);
// if the bitmap has pixels allocated before the readPixels,
// note that and fill them with pattern
bool startsWithPixels = !bmp.isNull();
// Try doing the read directly from a non-renderable texture
if (startsWithPixels) {
fill_dst_bmp_with_init_data(&bmp);
bool success = sContext->readPixels(bmp.info(), bmp.getPixels(), bmp.rowBytes(),
{srcRect.fLeft, srcRect.fTop});
auto expectSuccess = read_should_succeed(srcRect, bmp.info(), surfaceInfo);
REPORTER_ASSERT(
reporter, expectSuccess == success,
"Read succeed=%d unexpectedly, src ct/at: %d/%d, dst ct/at: %d/%d",
success, surfaceInfo.colorType(), surfaceInfo.alphaType(),
bmp.info().colorType(), bmp.info().alphaType());
if (success) {
check_read(reporter, bmp, srcRect.fLeft, srcRect.fTop, success, true,
surfaceInfo);
}
}
}
}
}
}
DEF_GPUTEST_FOR_RENDERING_CONTEXTS(ReadPixels_Texture, reporter, ctxInfo) {
auto direct = ctxInfo.directContext();
SkBitmap bmp = make_src_bitmap();
// On the GPU we will also try reading back from a non-renderable texture.
for (auto origin : {kBottomLeft_GrSurfaceOrigin, kTopLeft_GrSurfaceOrigin}) {
for (auto renderable : {GrRenderable::kNo, GrRenderable::kYes}) {
sk_sp<GrTextureProxy> proxy = sk_gpu_test::MakeTextureProxyFromData(
direct, renderable, origin, bmp.info(), bmp.getPixels(), bmp.rowBytes());
GrColorType grColorType = SkColorTypeToGrColorType(bmp.colorType());
GrSwizzle swizzle = direct->priv().caps()->getReadSwizzle(proxy->backendFormat(),
grColorType);
GrSurfaceProxyView view(std::move(proxy), origin, swizzle);
auto sContext = GrSurfaceContext::Make(direct, std::move(view),
grColorType, kPremul_SkAlphaType, nullptr);
auto info = SkImageInfo::Make(DEV_W, DEV_H, kN32_SkColorType, kPremul_SkAlphaType);
test_readpixels_texture(reporter, std::move(sContext), info);
}
}
}
///////////////////////////////////////////////////////////////////////////////////////////////////
static const uint32_t kNumPixels = 5;
// The five reference pixels are: red, green, blue, white, black.
// Five is an interesting number to test because we'll exercise a full 4-wide SIMD vector
// plus a tail pixel.
static const uint32_t rgba[kNumPixels] = {
0xFF0000FF, 0xFF00FF00, 0xFFFF0000, 0xFFFFFFFF, 0xFF000000
};
static const uint32_t bgra[kNumPixels] = {
0xFFFF0000, 0xFF00FF00, 0xFF0000FF, 0xFFFFFFFF, 0xFF000000
};
static const uint16_t rgb565[kNumPixels] = {
SK_R16_MASK_IN_PLACE, SK_G16_MASK_IN_PLACE, SK_B16_MASK_IN_PLACE, 0xFFFF, 0x0
};
static const uint16_t rgba4444[kNumPixels] = { 0xF00F, 0x0F0F, 0x00FF, 0xFFFF, 0x000F };
static const uint64_t kRed = (uint64_t) SK_Half1 << 0;
static const uint64_t kGreen = (uint64_t) SK_Half1 << 16;
static const uint64_t kBlue = (uint64_t) SK_Half1 << 32;
static const uint64_t kAlpha = (uint64_t) SK_Half1 << 48;
static const uint64_t f16[kNumPixels] = {
kAlpha | kRed, kAlpha | kGreen, kAlpha | kBlue, kAlpha | kBlue | kGreen | kRed, kAlpha
};
static const uint8_t alpha8[kNumPixels] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
static const uint8_t gray8[kNumPixels] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
static const void* five_reference_pixels(SkColorType colorType) {
switch (colorType) {
case kUnknown_SkColorType:
return nullptr;
case kAlpha_8_SkColorType:
return alpha8;
case kRGB_565_SkColorType:
return rgb565;
case kARGB_4444_SkColorType:
return rgba4444;
case kRGBA_8888_SkColorType:
return rgba;
case kBGRA_8888_SkColorType:
return bgra;
case kGray_8_SkColorType:
return gray8;
case kRGBA_F16_SkColorType:
return f16;
default:
return nullptr;
}
SkASSERT(false);
return nullptr;
}
static void test_conversion(skiatest::Reporter* r, const SkImageInfo& dstInfo,
const SkImageInfo& srcInfo) {
if (!SkImageInfoIsValid(srcInfo)) {
return;
}
const void* srcPixels = five_reference_pixels(srcInfo.colorType());
SkPixmap srcPixmap(srcInfo, srcPixels, srcInfo.minRowBytes());
sk_sp<SkImage> src = SkImage::MakeFromRaster(srcPixmap, nullptr, nullptr);
REPORTER_ASSERT(r, src);
// Enough space for 5 pixels when color type is F16, more than enough space in other cases.
uint64_t dstPixels[kNumPixels];
SkPixmap dstPixmap(dstInfo, dstPixels, dstInfo.minRowBytes());
bool success = src->readPixels(dstPixmap, 0, 0);
REPORTER_ASSERT(r, success == SkImageInfoValidConversion(dstInfo, srcInfo));
if (success) {
if (kGray_8_SkColorType == srcInfo.colorType() &&
kGray_8_SkColorType != dstInfo.colorType()) {
// TODO: test (r,g,b) == (gray,gray,gray)?
return;
}
if (kGray_8_SkColorType == dstInfo.colorType() &&
kGray_8_SkColorType != srcInfo.colorType()) {
// TODO: test gray = luminance?
return;
}
if (kAlpha_8_SkColorType == srcInfo.colorType() &&
kAlpha_8_SkColorType != dstInfo.colorType()) {
// TODO: test output = black with this alpha?
return;
}
REPORTER_ASSERT(r, 0 == memcmp(dstPixels, five_reference_pixels(dstInfo.colorType()),
kNumPixels * SkColorTypeBytesPerPixel(dstInfo.colorType())));
}
}
DEF_TEST(ReadPixels_ValidConversion, reporter) {
const SkColorType kColorTypes[] = {
kUnknown_SkColorType,
kAlpha_8_SkColorType,
kRGB_565_SkColorType,
kARGB_4444_SkColorType,
kRGBA_8888_SkColorType,
kBGRA_8888_SkColorType,
kGray_8_SkColorType,
kRGBA_F16_SkColorType,
};
const SkAlphaType kAlphaTypes[] = {
kUnknown_SkAlphaType,
kOpaque_SkAlphaType,
kPremul_SkAlphaType,
kUnpremul_SkAlphaType,
};
const sk_sp<SkColorSpace> kColorSpaces[] = {
nullptr,
SkColorSpace::MakeSRGB(),
};
for (SkColorType dstCT : kColorTypes) {
for (SkAlphaType dstAT: kAlphaTypes) {
for (sk_sp<SkColorSpace> dstCS : kColorSpaces) {
for (SkColorType srcCT : kColorTypes) {
for (SkAlphaType srcAT: kAlphaTypes) {
for (sk_sp<SkColorSpace> srcCS : kColorSpaces) {
test_conversion(reporter,
SkImageInfo::Make(kNumPixels, 1, dstCT, dstAT, dstCS),
SkImageInfo::Make(kNumPixels, 1, srcCT, srcAT, srcCS));
}
}
}
}
}
}
}
static constexpr int min_rgb_channel_bits(SkColorType ct) {
switch (ct) {
case kUnknown_SkColorType: return 0;
case kAlpha_8_SkColorType: return 0;
case kA16_unorm_SkColorType: return 0;
case kA16_float_SkColorType: return 0;
case kRGB_565_SkColorType: return 5;
case kARGB_4444_SkColorType: return 4;
case kR8G8_unorm_SkColorType: return 8;
case kR16G16_unorm_SkColorType: return 16;
case kR16G16_float_SkColorType: return 16;
case kRGBA_8888_SkColorType: return 8;
case kRGB_888x_SkColorType: return 8;
case kBGRA_8888_SkColorType: return 8;
case kRGBA_1010102_SkColorType: return 10;
case kRGB_101010x_SkColorType: return 10;
case kBGRA_1010102_SkColorType: return 10;
case kBGR_101010x_SkColorType: return 10;
case kGray_8_SkColorType: return 8; // counting gray as "rgb"
case kRGBA_F16Norm_SkColorType: return 10; // just counting the mantissa
case kRGBA_F16_SkColorType: return 10; // just counting the mantissa
case kRGBA_F32_SkColorType: return 23; // just counting the mantissa
case kR16G16B16A16_unorm_SkColorType: return 16;
}
SkUNREACHABLE;
}
static constexpr int alpha_channel_bits(SkColorType ct) {
switch (ct) {
case kUnknown_SkColorType: return 0;
case kAlpha_8_SkColorType: return 8;
case kA16_unorm_SkColorType: return 16;
case kA16_float_SkColorType: return 16;
case kRGB_565_SkColorType: return 0;
case kARGB_4444_SkColorType: return 4;
case kR8G8_unorm_SkColorType: return 0;
case kR16G16_unorm_SkColorType: return 0;
case kR16G16_float_SkColorType: return 0;
case kRGBA_8888_SkColorType: return 8;
case kRGB_888x_SkColorType: return 0;
case kBGRA_8888_SkColorType: return 8;
case kRGBA_1010102_SkColorType: return 2;
case kRGB_101010x_SkColorType: return 0;
case kBGRA_1010102_SkColorType: return 2;
case kBGR_101010x_SkColorType: return 0;
case kGray_8_SkColorType: return 0;
case kRGBA_F16Norm_SkColorType: return 10; // just counting the mantissa
case kRGBA_F16_SkColorType: return 10; // just counting the mantissa
case kRGBA_F32_SkColorType: return 23; // just counting the mantissa
case kR16G16B16A16_unorm_SkColorType: return 16;
}
SkUNREACHABLE;
}
namespace {
struct GpuReadPixelTestRules {
// Test unpremul sources? We could omit this and detect that creating the source of the read
// failed but having it lets us skip generating reference color data.
bool fAllowUnpremulSrc = true;
// Expect read function to succeed for kUnpremul?
bool fAllowUnpremulRead = true;
// Are reads that are overlapping but not contained by the src bounds expected to succeed?
bool fUncontainedRectSucceeds = true;
};
// Makes a src populated with the pixmap. The src should get its image info (or equivalent) from
// the pixmap.
template <typename T> using GpuSrcFactory = T(SkPixmap&);
enum class GpuReadResult {
kFail,
kSuccess,
kExcusedFailure,
};
// Does a read from the T into the pixmap.
template <typename T>
using GpuReadSrcFn = GpuReadResult(const T&, const SkIVector& offset, const SkPixmap&);
} // anonymous namespace
template <typename T>
static void gpu_read_pixels_test_driver(skiatest::Reporter* reporter,
const GpuReadPixelTestRules& rules,
const std::function<GpuSrcFactory<T>>& srcFactory,
const std::function<GpuReadSrcFn<T>>& read) {
// Separate this out just to give it some line width to breathe. Note 'srcPixels' should have
// the same image info as src. We will do a converting readPixels() on it to get the data
// to compare with the results of 'read'.
auto runTest = [&](const T& src, const SkPixmap& srcPixels, const SkImageInfo& readInfo,
const SkIVector& offset) {
const bool csConversion =
!SkColorSpace::Equals(readInfo.colorSpace(), srcPixels.info().colorSpace());
const auto readCT = readInfo.colorType();
const auto readAT = readInfo.alphaType();
const auto srcCT = srcPixels.info().colorType();
const auto srcAT = srcPixels.info().alphaType();
const auto rect = SkIRect::MakeWH(readInfo.width(), readInfo.height()).makeOffset(offset);
const auto surfBounds = SkIRect::MakeWH(srcPixels.width(), srcPixels.height());
const size_t readBpp = SkColorTypeBytesPerPixel(readCT);
// Make the row bytes in the dst be loose for extra stress.
const size_t dstRB = readBpp * readInfo.width() + 10 * readBpp;
// This will make the last row tight.
const size_t dstSize = readInfo.computeByteSize(dstRB);
std::unique_ptr<char[]> dstData(new char[dstSize]);
SkPixmap dstPixels(readInfo, dstData.get(), dstRB);
// Initialize with an arbitrary value for each byte. Later we will check that only the
// correct part of the destination gets overwritten by 'read'.
static constexpr auto kInitialByte = static_cast<char>(0x1B);
std::fill_n(static_cast<char*>(dstPixels.writable_addr()),
dstPixels.computeByteSize(),
kInitialByte);
const GpuReadResult result = read(src, offset, dstPixels);
if (!SkIRect::Intersects(rect, surfBounds)) {
REPORTER_ASSERT(reporter, result != GpuReadResult::kSuccess);
} else if (readCT == kUnknown_SkColorType) {
REPORTER_ASSERT(reporter, result != GpuReadResult::kSuccess);
} else if (readAT == kUnknown_SkAlphaType) {
REPORTER_ASSERT(reporter, result != GpuReadResult::kSuccess);
} else if (!rules.fUncontainedRectSucceeds && !surfBounds.contains(rect)) {
REPORTER_ASSERT(reporter, result != GpuReadResult::kSuccess);
} else if (!rules.fAllowUnpremulRead && readAT == kUnpremul_SkAlphaType) {
REPORTER_ASSERT(reporter, result != GpuReadResult::kSuccess);
} else if (result == GpuReadResult::kFail) {
// TODO: Support RGB/BGR 101010x, BGRA 1010102 on the GPU.
if (SkColorTypeToGrColorType(readCT) != GrColorType::kUnknown) {
ERRORF(reporter,
"Read failed. Src CT: %s, Src AT: %s Read CT: %s, Read AT: %s, "
"Rect [%d, %d, %d, %d], CS conversion: %d\n",
ToolUtils::colortype_name(srcCT), ToolUtils::alphatype_name(srcAT),
ToolUtils::colortype_name(readCT), ToolUtils::alphatype_name(readAT),
rect.fLeft, rect.fTop, rect.fRight, rect.fBottom, csConversion);
}
return;
}
bool guardOk = true;
auto guardCheck = [](char x) { return x == kInitialByte; };
// Considering the rect we tried to read and the surface bounds figure out which pixels in
// both src and dst space should actually have been read and written.
SkIRect srcReadRect;
if (result == GpuReadResult::kSuccess && srcReadRect.intersect(surfBounds, rect)) {
SkIRect dstWriteRect = srcReadRect.makeOffset(-rect.fLeft, -rect.fTop);
const bool lumConversion =
!(SkColorTypeChannelFlags(srcCT) & kGray_SkColorChannelFlag) &&
(SkColorTypeChannelFlags(readCT) & kGray_SkColorChannelFlag);
// A CS or luminance conversion allows a 3 value difference and otherwise a 2 value
// difference. Note that sometimes read back on GPU can be lossy even when there no
// conversion at all because GPU->CPU read may go to a lower bit depth format and then
// be promoted back to the original type. For example, GL ES cannot read to 1010102, so
// we go through 8888.
const float numer = (lumConversion || csConversion) ? 3.f : 2.f;
int rgbBits = std::min(
{min_rgb_channel_bits(readCT), min_rgb_channel_bits(srcCT), 8});
float tol = numer / (1 << rgbBits);
float alphaTol = 0;
if (readAT != kOpaque_SkAlphaType && srcAT != kOpaque_SkAlphaType) {
// Alpha can also get squashed down to 8 bits going through an intermediate
// color format.
const int alphaBits =
std::min({alpha_channel_bits(readCT), alpha_channel_bits(srcCT), 8});
alphaTol = 2.f / (1 << alphaBits);
}
const float tols[4] = {tol, tol, tol, alphaTol};
auto error = std::function<ComparePixmapsErrorReporter>([&](int x, int y,
const float diffs[4]) {
SkASSERT(x >= 0 && y >= 0);
ERRORF(reporter,
"Src CT: %s, Src AT: %s, Read CT: %s, Read AT: %s, Rect [%d, %d, %d, %d]"
", CS conversion: %d\n"
"Error at %d, %d. Diff in floats: (%f, %f, %f %f)",
ToolUtils::colortype_name(srcCT), ToolUtils::alphatype_name(srcAT),
ToolUtils::colortype_name(readCT), ToolUtils::alphatype_name(readAT),
rect.fLeft, rect.fTop, rect.fRight, rect.fBottom, csConversion, x, y,
diffs[0], diffs[1], diffs[2], diffs[3]);
});
SkAutoPixmapStorage ref;
ref.alloc(readInfo.makeWH(dstWriteRect.width(), dstWriteRect.height()));
srcPixels.readPixels(ref, srcReadRect.x(), srcReadRect.y());
// This is the part of dstPixels that should have been updated.
SkPixmap actual;
SkAssertResult(dstPixels.extractSubset(&actual, dstWriteRect));
ComparePixels(ref, actual, tols, error);
const auto* v = dstData.get();
const auto* end = dstData.get() + dstSize;
guardOk = std::all_of(v, v + dstWriteRect.top() * dstPixels.rowBytes(), guardCheck);
v += dstWriteRect.top() * dstPixels.rowBytes();
for (int y = dstWriteRect.top(); y < dstWriteRect.bottom(); ++y) {
guardOk |= std::all_of(v, v + dstWriteRect.left() * readBpp, guardCheck);
auto pad = v + dstWriteRect.right() * readBpp;
auto rowEnd = std::min(end, v + dstPixels.rowBytes());
// min protects against reading past the end of the tight last row.
guardOk |= std::all_of(pad, rowEnd, guardCheck);
v = rowEnd;
}
guardOk |= std::all_of(v, end, guardCheck);
} else {
guardOk = std::all_of(dstData.get(), dstData.get() + dstSize, guardCheck);
}
if (!guardOk) {
ERRORF(reporter,
"Result pixels modified result outside read rect [%d, %d, %d, %d]. "
"Src CT: %s, Read CT: %s, CS conversion: %d",
rect.fLeft, rect.fTop, rect.fRight, rect.fBottom,
ToolUtils::colortype_name(srcCT), ToolUtils::colortype_name(readCT),
csConversion);
}
};
static constexpr int kW = 16;
static constexpr int kH = 16;
// Makes the reference data that is used to populate the src. Always F32 regardless of srcCT.
auto make_ref_f32_data = [](SkAlphaType srcAT, SkColorType srcCT) -> SkAutoPixmapStorage {
// Make src data in F32 with srcAT. We will convert it to each color type we test to
// initialize the src.
const auto refInfo =
SkImageInfo::Make(kW, kH, kRGBA_F32_SkColorType, srcAT, SkColorSpace::MakeSRGB());
auto refSurf = SkSurface::MakeRaster(refInfo);
static constexpr SkPoint kPts1[] = {{0, 0}, {kW, kH}};
static constexpr SkColor kColors1[] = {SK_ColorGREEN, SK_ColorRED};
SkPaint paint;
paint.setShader(
SkGradientShader::MakeLinear(kPts1, kColors1, nullptr, 2, SkTileMode::kClamp));
refSurf->getCanvas()->drawPaint(paint);
static constexpr SkPoint kPts2[] = {{kW, 0}, {0, kH}};
static constexpr SkColor kColors2[] = {SK_ColorBLUE, SK_ColorBLACK};
paint.setShader(
SkGradientShader::MakeLinear(kPts2, kColors2, nullptr, 2, SkTileMode::kClamp));
paint.setBlendMode(SkBlendMode::kPlus);
refSurf->getCanvas()->drawPaint(paint);
// Keep everything opaque if the src alpha type is opaque. Also, there is an issue with
// 1010102 (the only color type where the number of alpha bits is non-zero and not the
// same as r, g, and b). Because of the different precisions the draw below can create
// data that isn't strictly premul (e.g. alpha is 1/3 but green is .4). SW will clamp
// r, g, b to a if the dst is premul and a different color type. GPU doesn't do this.
// We could but 1010102 premul is kind of dubious anyway. So for now just keep the data
// opaque.
if (srcAT != kOpaque_SkAlphaType &&
(srcAT == kPremul_SkAlphaType && srcCT != kRGBA_1010102_SkColorType
&& srcCT != kBGRA_1010102_SkColorType)) {
static constexpr SkColor kColors3[] = {SK_ColorWHITE,
SK_ColorWHITE,
0x60FFFFFF,
SK_ColorWHITE,
SK_ColorWHITE};
static constexpr SkScalar kPos3[] = {0.f, 0.15f, 0.5f, 0.85f, 1.f};
paint.setShader(SkGradientShader::MakeRadial({kW / 2.f, kH / 2.f}, (kW + kH) / 10.f,
kColors3, kPos3, 5, SkTileMode::kMirror));
paint.setBlendMode(SkBlendMode::kDstIn);
refSurf->getCanvas()->drawPaint(paint);
}
const auto srcInfo = SkImageInfo::Make(kW, kH, srcCT, srcAT, SkColorSpace::MakeSRGB());
SkAutoPixmapStorage srcPixels;
srcPixels.alloc(srcInfo);
refSurf->readPixels(srcPixels, 0, 0);
return srcPixels;
};
for (int sat = 0; sat < kLastEnum_SkAlphaType; ++sat) {
const auto srcAT = static_cast<SkAlphaType>(sat);
if (srcAT == kUnknown_SkAlphaType ||
(srcAT == kUnpremul_SkAlphaType && !rules.fAllowUnpremulSrc)) {
continue;
}
for (int sct = 0; sct <= kLastEnum_SkColorType; ++sct) {
const auto srcCT = static_cast<SkColorType>(sct);
// Note that we only currently use srcCT for a 1010102 workaround. If we remove this we
// can also but the ref data setup above the srcCT loop.
SkAutoPixmapStorage srcPixels = make_ref_f32_data(srcAT, srcCT);
auto src = srcFactory(srcPixels);
if (!src) {
continue;
}
for (int rct = 0; rct <= kLastEnum_SkColorType; ++rct) {
const auto readCT = static_cast<SkColorType>(rct);
for (const sk_sp<SkColorSpace>& readCS :
{SkColorSpace::MakeSRGB(), SkColorSpace::MakeSRGBLinear()}) {
for (int at = 0; at <= kLastEnum_SkAlphaType; ++at) {
const auto readAT = static_cast<SkAlphaType>(at);
if (srcAT != kOpaque_SkAlphaType && readAT == kOpaque_SkAlphaType) {
// This doesn't make sense.
continue;
}
// Test full size, partial, empty, and too wide rects.
for (const auto& rect : {
// entire thing
SkIRect::MakeWH(kW, kH),
// larger on all sides
SkIRect::MakeLTRB(-10, -10, kW + 10, kH + 10),
// fully contained
SkIRect::MakeLTRB(kW / 4, kH / 4, 3 * kW / 4, 3 * kH / 4),
// outside top left
SkIRect::MakeLTRB(-10, -10, -1, -1),
// touching top left corner
SkIRect::MakeLTRB(-10, -10, 0, 0),
// overlapping top left corner
SkIRect::MakeLTRB(-10, -10, kW / 4, kH / 4),
// overlapping top left and top right corners
SkIRect::MakeLTRB(-10, -10, kW + 10, kH / 4),
// touching entire top edge
SkIRect::MakeLTRB(-10, -10, kW + 10, 0),
// overlapping top right corner
SkIRect::MakeLTRB(3 * kW / 4, -10, kW + 10, kH / 4),
// contained in x, overlapping top edge
SkIRect::MakeLTRB(kW / 4, -10, 3 * kW / 4, kH / 4),
// outside top right corner
SkIRect::MakeLTRB(kW + 1, -10, kW + 10, -1),
// touching top right corner
SkIRect::MakeLTRB(kW, -10, kW + 10, 0),
// overlapping top left and bottom left corners
SkIRect::MakeLTRB(-10, -10, kW / 4, kH + 10),
// touching entire left edge
SkIRect::MakeLTRB(-10, -10, 0, kH + 10),
// overlapping bottom left corner
SkIRect::MakeLTRB(-10, 3 * kH / 4, kW / 4, kH + 10),
// contained in y, overlapping left edge
SkIRect::MakeLTRB(-10, kH / 4, kW / 4, 3 * kH / 4),
// outside bottom left corner
SkIRect::MakeLTRB(-10, kH + 1, -1, kH + 10),
// touching bottom left corner
SkIRect::MakeLTRB(-10, kH, 0, kH + 10),
// overlapping bottom left and bottom right corners
SkIRect::MakeLTRB(-10, 3 * kH / 4, kW + 10, kH + 10),
// touching entire left edge
SkIRect::MakeLTRB(0, kH, kW, kH + 10),
// overlapping bottom right corner
SkIRect::MakeLTRB(3 * kW / 4, 3 * kH / 4, kW + 10, kH + 10),
// overlapping top right and bottom right corners
SkIRect::MakeLTRB(3 * kW / 4, -10, kW + 10, kH + 10),
}) {
const auto readInfo = SkImageInfo::Make(rect.width(), rect.height(),
readCT, readAT, readCS);
const SkIVector offset = rect.topLeft();
runTest(src, srcPixels, readInfo, offset);
}
}
}
}
}
}
}
namespace {
struct AsyncContext {
bool fCalled = false;
std::unique_ptr<const SkImage::AsyncReadResult> fResult;
};
} // anonymous namespace
// Making this a lambda in the test functions caused:
// "error: cannot compile this forwarded non-trivially copyable parameter yet"
// on x86/Win/Clang bot, referring to 'result'.
static void async_callback(void* c, std::unique_ptr<const SkImage::AsyncReadResult> result) {
auto context = static_cast<AsyncContext*>(c);
context->fResult = std::move(result);
context->fCalled = true;
};
DEF_GPUTEST_FOR_RENDERING_CONTEXTS(SurfaceAsyncReadPixels, reporter, ctxInfo) {
using Surface = sk_sp<SkSurface>;
auto reader = std::function<GpuReadSrcFn<Surface>>([](const Surface& surface,
const SkIVector& offset,
const SkPixmap& pixels) {
auto direct = surface->recordingContext()->asDirectContext();
SkASSERT(direct);
AsyncContext context;
auto rect = SkIRect::MakeSize(pixels.dimensions()).makeOffset(offset);
// Rescale quality and linearity don't matter since we're doing a non-scaling readback.
surface->asyncRescaleAndReadPixels(pixels.info(), rect, SkImage::RescaleGamma::kSrc,
kNone_SkFilterQuality, async_callback, &context);
direct->submit();
while (!context.fCalled) {
direct->checkAsyncWorkCompletion();
}
if (!context.fResult) {
return GpuReadResult::kFail;
}
SkRectMemcpy(pixels.writable_addr(), pixels.rowBytes(), context.fResult->data(0),
context.fResult->rowBytes(0), pixels.info().minRowBytes(), pixels.height());
return GpuReadResult::kSuccess;
});
GpuReadPixelTestRules rules;
rules.fAllowUnpremulSrc = false;
rules.fAllowUnpremulRead = false;
rules.fUncontainedRectSucceeds = false;
for (GrSurfaceOrigin origin : {kTopLeft_GrSurfaceOrigin, kBottomLeft_GrSurfaceOrigin}) {
auto factory = std::function<GpuSrcFactory<Surface>>(
[context = ctxInfo.directContext(), origin](const SkPixmap& src) {
if (src.colorType() == kRGB_888x_SkColorType) {
return Surface();
}
auto surf = SkSurface::MakeRenderTarget(context, SkBudgeted::kYes, src.info(),
0, origin, nullptr);
if (surf) {
surf->writePixels(src, 0, 0);
}
return surf;
});
gpu_read_pixels_test_driver(reporter, rules, factory, reader);
}
}
DEF_GPUTEST_FOR_RENDERING_CONTEXTS(ImageAsyncReadPixels, reporter, ctxInfo) {
using Image = sk_sp<SkImage>;
auto context = ctxInfo.directContext();
auto reader = std::function<GpuReadSrcFn<Image>>([context](const Image& image,
const SkIVector& offset,
const SkPixmap& pixels) {
AsyncContext asyncContext;
auto rect = SkIRect::MakeSize(pixels.dimensions()).makeOffset(offset);
// The GPU implementation is based on rendering and will fail for non-renderable color
// types.
auto ct = SkColorTypeToGrColorType(image->colorType());
auto format = context->priv().caps()->getDefaultBackendFormat(ct, GrRenderable::kYes);
if (!context->priv().caps()->isFormatAsColorTypeRenderable(ct, format)) {
return GpuReadResult::kExcusedFailure;
}
// Rescale quality and linearity don't matter since we're doing a non-scaling readback.
image->asyncRescaleAndReadPixels(pixels.info(), rect, SkImage::RescaleGamma::kSrc,
kNone_SkFilterQuality, async_callback, &asyncContext);
context->submit();
while (!asyncContext.fCalled) {
context->checkAsyncWorkCompletion();
}
if (!asyncContext.fResult) {
return GpuReadResult::kFail;
}
SkRectMemcpy(pixels.writable_addr(), pixels.rowBytes(), asyncContext.fResult->data(0),
asyncContext.fResult->rowBytes(0), pixels.info().minRowBytes(),
pixels.height());
return GpuReadResult::kSuccess;
});
GpuReadPixelTestRules rules;
rules.fAllowUnpremulSrc = true;
// GPU doesn't support reading to kUnpremul because the rescaling works by rendering and now
// we only support premul rendering.
rules.fAllowUnpremulRead = false;
rules.fUncontainedRectSucceeds = false;
for (auto origin : {kTopLeft_GrSurfaceOrigin, kBottomLeft_GrSurfaceOrigin}) {
for (auto renderable : {GrRenderable::kNo, GrRenderable::kYes}) {
auto factory = std::function<GpuSrcFactory<Image>>([&](const SkPixmap& src) {
if (src.colorType() == kRGB_888x_SkColorType) {
return Image();
}
return sk_gpu_test::MakeBackendTextureImage(ctxInfo.directContext(), src,
renderable, origin);
});
gpu_read_pixels_test_driver(reporter, rules, factory, reader);
}
}
}
DEF_GPUTEST_FOR_RENDERING_CONTEXTS(ReadPixels_Gpu, reporter, ctxInfo) {
using Surface = sk_sp<SkSurface>;
auto reader = std::function<GpuReadSrcFn<Surface>>(
[](const Surface& surface, const SkIVector& offset, const SkPixmap& pixels) {
return surface->readPixels(pixels, offset.fX, offset.fY) ? GpuReadResult::kSuccess
: GpuReadResult::kFail;
});
GpuReadPixelTestRules rules;
rules.fAllowUnpremulSrc = false;
rules.fAllowUnpremulRead = true;
rules.fUncontainedRectSucceeds = true;
for (GrSurfaceOrigin origin : {kTopLeft_GrSurfaceOrigin, kBottomLeft_GrSurfaceOrigin}) {
auto factory = std::function<GpuSrcFactory<Surface>>(
[context = ctxInfo.directContext(), origin](const SkPixmap& src) {
if (src.colorType() == kRGB_888x_SkColorType) {
return Surface();
}
auto surf = SkSurface::MakeRenderTarget(context, SkBudgeted::kYes, src.info(),
0, origin, nullptr);
if (surf) {
surf->writePixels(src, 0, 0);
}
return surf;
});
gpu_read_pixels_test_driver(reporter, rules, factory, reader);
}
}
DEF_GPUTEST(AsyncReadPixelsContextShutdown, reporter, options) {
const auto ii = SkImageInfo::Make(10, 10, kRGBA_8888_SkColorType, kPremul_SkAlphaType,
SkColorSpace::MakeSRGB());
enum class ShutdownSequence {
kFreeResult_DestroyContext,
kDestroyContext_FreeResult,
kFreeResult_ReleaseAndAbandon_DestroyContext,
kFreeResult_Abandon_DestroyContext,
kReleaseAndAbandon_FreeResult_DestroyContext,
kAbandon_FreeResult_DestroyContext,
kReleaseAndAbandon_DestroyContext_FreeResult,
kAbandon_DestroyContext_FreeResult,
};
for (int t = 0; t < sk_gpu_test::GrContextFactory::kContextTypeCnt; ++t) {
auto type = static_cast<sk_gpu_test::GrContextFactory::ContextType>(t);
for (auto sequence : {ShutdownSequence::kFreeResult_DestroyContext,
ShutdownSequence::kDestroyContext_FreeResult,
ShutdownSequence::kFreeResult_ReleaseAndAbandon_DestroyContext,
ShutdownSequence::kFreeResult_Abandon_DestroyContext,
ShutdownSequence::kReleaseAndAbandon_FreeResult_DestroyContext,
ShutdownSequence::kAbandon_FreeResult_DestroyContext,
ShutdownSequence::kReleaseAndAbandon_DestroyContext_FreeResult,
ShutdownSequence::kAbandon_DestroyContext_FreeResult}) {
// Vulkan context abandoning without resource release has issues outside of the scope of
// this test.
if (type == sk_gpu_test::GrContextFactory::kVulkan_ContextType &&
(sequence == ShutdownSequence::kFreeResult_ReleaseAndAbandon_DestroyContext ||
sequence == ShutdownSequence::kFreeResult_Abandon_DestroyContext ||
sequence == ShutdownSequence::kReleaseAndAbandon_FreeResult_DestroyContext ||
sequence == ShutdownSequence::kReleaseAndAbandon_DestroyContext_FreeResult ||
sequence == ShutdownSequence::kAbandon_FreeResult_DestroyContext ||
sequence == ShutdownSequence::kAbandon_DestroyContext_FreeResult)) {
continue;
}
for (bool yuv : {false, true}) {
sk_gpu_test::GrContextFactory factory(options);
auto direct = factory.get(type);
if (!direct) {
continue;
}
// This test is only meaningful for contexts that support transfer buffers for
// reads.
if (!direct->priv().caps()->transferFromSurfaceToBufferSupport()) {
continue;
}
auto surf = SkSurface::MakeRenderTarget(direct, SkBudgeted::kYes, ii, 1, nullptr);
if (!surf) {
continue;
}
AsyncContext cbContext;
if (yuv) {
surf->asyncRescaleAndReadPixelsYUV420(
kIdentity_SkYUVColorSpace, SkColorSpace::MakeSRGB(), ii.bounds(),
ii.dimensions(), SkImage::RescaleGamma::kSrc, kNone_SkFilterQuality,
&async_callback, &cbContext);
} else {
surf->asyncRescaleAndReadPixels(ii, ii.bounds(), SkImage::RescaleGamma::kSrc,
kNone_SkFilterQuality, &async_callback,
&cbContext);
}
direct->submit();
while (!cbContext.fCalled) {
direct->checkAsyncWorkCompletion();
}
if (!cbContext.fResult) {
ERRORF(reporter, "Callback failed on %s. is YUV: %d",
sk_gpu_test::GrContextFactory::ContextTypeName(type), yuv);
continue;
}
// For vulkan we need to release all refs to the GrContext before trying to destroy
// the test context. The surface here is holding a ref.
surf.reset();
// The real test is that we don't crash, get Vulkan validation errors, etc, during
// this shutdown sequence.
switch (sequence) {
case ShutdownSequence::kFreeResult_DestroyContext:
case ShutdownSequence::kFreeResult_ReleaseAndAbandon_DestroyContext:
case ShutdownSequence::kFreeResult_Abandon_DestroyContext:
break;
case ShutdownSequence::kDestroyContext_FreeResult:
factory.destroyContexts();
break;
case ShutdownSequence::kReleaseAndAbandon_FreeResult_DestroyContext:
factory.releaseResourcesAndAbandonContexts();
break;
case ShutdownSequence::kAbandon_FreeResult_DestroyContext:
factory.abandonContexts();
break;
case ShutdownSequence::kReleaseAndAbandon_DestroyContext_FreeResult:
factory.releaseResourcesAndAbandonContexts();
factory.destroyContexts();
break;
case ShutdownSequence::kAbandon_DestroyContext_FreeResult:
factory.abandonContexts();
factory.destroyContexts();
break;
}
cbContext.fResult.reset();
switch (sequence) {
case ShutdownSequence::kFreeResult_ReleaseAndAbandon_DestroyContext:
factory.releaseResourcesAndAbandonContexts();
break;
case ShutdownSequence::kFreeResult_Abandon_DestroyContext:
factory.abandonContexts();
break;
case ShutdownSequence::kFreeResult_DestroyContext:
case ShutdownSequence::kDestroyContext_FreeResult:
case ShutdownSequence::kReleaseAndAbandon_FreeResult_DestroyContext:
case ShutdownSequence::kAbandon_FreeResult_DestroyContext:
case ShutdownSequence::kReleaseAndAbandon_DestroyContext_FreeResult:
case ShutdownSequence::kAbandon_DestroyContext_FreeResult:
break;
}
}
}
}
}
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