480 lines
17 KiB
C++
480 lines
17 KiB
C++
/*
|
|
* 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 "SkBitmapDevice.h"
|
|
#include "SkCanvas.h"
|
|
#include "SkColorPriv.h"
|
|
#include "SkMathPriv.h"
|
|
#include "SkRegion.h"
|
|
#include "SkSurface.h"
|
|
#include "Test.h"
|
|
#include "sk_tool_utils.h"
|
|
|
|
#if SK_SUPPORT_GPU
|
|
#include "GrContextFactory.h"
|
|
#include "SkGpuDevice.h"
|
|
#else
|
|
class GrContext;
|
|
class GrContextFactory;
|
|
#endif
|
|
|
|
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 const U8CPU DEV_PAD = 0xee;
|
|
|
|
static SkPMColor getCanvasColor(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 = 0x0;
|
|
switch ((x+y) % 5) {
|
|
case 0:
|
|
a = 0xff;
|
|
break;
|
|
case 1:
|
|
a = 0x80;
|
|
break;
|
|
case 2:
|
|
a = 0xCC;
|
|
break;
|
|
case 3:
|
|
a = 0x00;
|
|
break;
|
|
case 4:
|
|
a = 0x01;
|
|
break;
|
|
}
|
|
return SkPremultiplyARGBInline(a, r, g, b);
|
|
}
|
|
|
|
// assumes any premu/.unpremul has been applied
|
|
static uint32_t packColorType(SkColorType ct, U8CPU a, U8CPU r, U8CPU g, U8CPU b) {
|
|
uint32_t r32;
|
|
uint8_t* result = reinterpret_cast<uint8_t*>(&r32);
|
|
switch (ct) {
|
|
case kBGRA_8888_SkColorType:
|
|
result[0] = b;
|
|
result[1] = g;
|
|
result[2] = r;
|
|
result[3] = a;
|
|
break;
|
|
case kRGBA_8888_SkColorType:
|
|
result[0] = r;
|
|
result[1] = g;
|
|
result[2] = b;
|
|
result[3] = a;
|
|
break;
|
|
default:
|
|
SkASSERT(0);
|
|
return 0;
|
|
}
|
|
return r32;
|
|
}
|
|
|
|
static uint32_t getBitmapColor(int x, int y, int w, SkColorType ct, SkAlphaType at) {
|
|
int n = y * w + x;
|
|
U8CPU b = n & 0xff;
|
|
U8CPU g = (n >> 8) & 0xff;
|
|
U8CPU r = (n >> 16) & 0xff;
|
|
U8CPU a = 0;
|
|
switch ((x+y) % 5) {
|
|
case 4:
|
|
a = 0xff;
|
|
break;
|
|
case 3:
|
|
a = 0x80;
|
|
break;
|
|
case 2:
|
|
a = 0xCC;
|
|
break;
|
|
case 1:
|
|
a = 0x01;
|
|
break;
|
|
case 0:
|
|
a = 0x00;
|
|
break;
|
|
}
|
|
if (kPremul_SkAlphaType == at) {
|
|
r = SkMulDiv255Ceiling(r, a);
|
|
g = SkMulDiv255Ceiling(g, a);
|
|
b = SkMulDiv255Ceiling(b, a);
|
|
}
|
|
return packColorType(ct, a, r, g , b);
|
|
}
|
|
|
|
static void fillCanvas(SkCanvas* canvas) {
|
|
SkBitmap bmp;
|
|
if (bmp.isNull()) {
|
|
bmp.allocN32Pixels(DEV_W, DEV_H);
|
|
for (int y = 0; y < DEV_H; ++y) {
|
|
for (int x = 0; x < DEV_W; ++x) {
|
|
*bmp.getAddr32(x, y) = getCanvasColor(x, y);
|
|
}
|
|
}
|
|
}
|
|
canvas->save();
|
|
canvas->setMatrix(SkMatrix::I());
|
|
canvas->clipRect(DEV_RECT_S, SkRegion::kReplace_Op);
|
|
SkPaint paint;
|
|
paint.setXfermodeMode(SkXfermode::kSrc_Mode);
|
|
canvas->drawBitmap(bmp, 0, 0, &paint);
|
|
canvas->restore();
|
|
}
|
|
|
|
/**
|
|
* Lucky for us, alpha is always in the same spot (SK_A32_SHIFT), for both RGBA and BGRA.
|
|
* Thus this routine doesn't need to know the exact colortype
|
|
*/
|
|
static uint32_t premul(uint32_t color) {
|
|
unsigned a = SkGetPackedA32(color);
|
|
// these next three are not necessarily r,g,b in that order, but they are r,g,b in some order.
|
|
unsigned c0 = SkGetPackedR32(color);
|
|
unsigned c1 = SkGetPackedG32(color);
|
|
unsigned c2 = SkGetPackedB32(color);
|
|
c0 = SkMulDiv255Ceiling(c0, a);
|
|
c1 = SkMulDiv255Ceiling(c1, a);
|
|
c2 = SkMulDiv255Ceiling(c2, a);
|
|
return SkPackARGB32NoCheck(a, c0, c1, c2);
|
|
}
|
|
|
|
static SkPMColor convert_to_PMColor(SkColorType ct, SkAlphaType at, uint32_t color) {
|
|
if (kUnpremul_SkAlphaType == at) {
|
|
color = premul(color);
|
|
}
|
|
switch (ct) {
|
|
case kRGBA_8888_SkColorType:
|
|
color = SkSwizzle_RGBA_to_PMColor(color);
|
|
break;
|
|
case kBGRA_8888_SkColorType:
|
|
color = SkSwizzle_BGRA_to_PMColor(color);
|
|
break;
|
|
default:
|
|
SkASSERT(0);
|
|
break;
|
|
}
|
|
return color;
|
|
}
|
|
|
|
static bool checkPixel(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;
|
|
}
|
|
|
|
static bool check_write(skiatest::Reporter* reporter, SkCanvas* canvas, const SkBitmap& bitmap,
|
|
int writeX, int writeY) {
|
|
const SkImageInfo canvasInfo = canvas->imageInfo();
|
|
size_t canvasRowBytes;
|
|
const uint32_t* canvasPixels;
|
|
|
|
// Can't use canvas->peekPixels(), as we are trying to look at GPU pixels sometimes as well.
|
|
// At some point this will be unsupported, as we won't allow accessBitmap() to magically call
|
|
// readPixels for the client.
|
|
SkBitmap secretDevBitmap;
|
|
canvas->readPixels(canvasInfo.bounds(), &secretDevBitmap);
|
|
|
|
SkAutoLockPixels alp(secretDevBitmap);
|
|
canvasRowBytes = secretDevBitmap.rowBytes();
|
|
canvasPixels = static_cast<const uint32_t*>(secretDevBitmap.getPixels());
|
|
|
|
if (NULL == canvasPixels) {
|
|
return false;
|
|
}
|
|
|
|
if (canvasInfo.width() != DEV_W ||
|
|
canvasInfo.height() != DEV_H ||
|
|
canvasInfo.colorType() != kN32_SkColorType) {
|
|
return false;
|
|
}
|
|
|
|
const SkImageInfo bmInfo = bitmap.info();
|
|
|
|
SkIRect writeRect = SkIRect::MakeXYWH(writeX, writeY, bitmap.width(), bitmap.height());
|
|
for (int cy = 0; cy < DEV_H; ++cy) {
|
|
for (int cx = 0; cx < DEV_W; ++cx) {
|
|
SkPMColor canvasPixel = canvasPixels[cx];
|
|
if (writeRect.contains(cx, cy)) {
|
|
int bx = cx - writeX;
|
|
int by = cy - writeY;
|
|
uint32_t bmpColor8888 = getBitmapColor(bx, by, bitmap.width(),
|
|
bmInfo.colorType(), bmInfo.alphaType());
|
|
bool mul = (kUnpremul_SkAlphaType == bmInfo.alphaType());
|
|
SkPMColor bmpPMColor = convert_to_PMColor(bmInfo.colorType(), bmInfo.alphaType(),
|
|
bmpColor8888);
|
|
bool check = checkPixel(bmpPMColor, canvasPixel, mul);
|
|
REPORTER_ASSERT(reporter, check);
|
|
if (!check) {
|
|
return false;
|
|
}
|
|
} else {
|
|
bool check;
|
|
SkPMColor testColor = getCanvasColor(cx, cy);
|
|
REPORTER_ASSERT(reporter, check = (canvasPixel == testColor));
|
|
if (!check) {
|
|
return false;
|
|
}
|
|
}
|
|
}
|
|
if (cy != DEV_H -1) {
|
|
const char* pad = reinterpret_cast<const char*>(canvasPixels + DEV_W);
|
|
for (size_t px = 0; px < canvasRowBytes - 4 * DEV_W; ++px) {
|
|
bool check;
|
|
REPORTER_ASSERT(reporter, check = (pad[px] == static_cast<char>(DEV_PAD)));
|
|
if (!check) {
|
|
return false;
|
|
}
|
|
}
|
|
}
|
|
canvasPixels += canvasRowBytes/4;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
enum DevType {
|
|
kRaster_DevType,
|
|
#if SK_SUPPORT_GPU
|
|
kGpu_BottomLeft_DevType,
|
|
kGpu_TopLeft_DevType,
|
|
#endif
|
|
};
|
|
|
|
struct CanvasConfig {
|
|
DevType fDevType;
|
|
bool fTightRowBytes;
|
|
};
|
|
|
|
static const CanvasConfig gCanvasConfigs[] = {
|
|
{kRaster_DevType, true},
|
|
{kRaster_DevType, false},
|
|
#if SK_SUPPORT_GPU
|
|
{kGpu_BottomLeft_DevType, true}, // row bytes has no meaning on gpu devices
|
|
{kGpu_TopLeft_DevType, true}, // row bytes has no meaning on gpu devices
|
|
#endif
|
|
};
|
|
|
|
#include "SkMallocPixelRef.h"
|
|
|
|
// This is a tricky pattern, because we have to setConfig+rowBytes AND specify
|
|
// a custom pixelRef (which also has to specify its rowBytes), so we have to be
|
|
// sure that the two rowBytes match (and the infos match).
|
|
//
|
|
static bool allocRowBytes(SkBitmap* bm, const SkImageInfo& info, size_t rowBytes) {
|
|
if (!bm->setInfo(info, rowBytes)) {
|
|
return false;
|
|
}
|
|
SkPixelRef* pr = SkMallocPixelRef::NewAllocate(info, rowBytes, NULL);
|
|
bm->setPixelRef(pr)->unref();
|
|
return true;
|
|
}
|
|
|
|
static void free_pixels(void* pixels, void* ctx) {
|
|
sk_free(pixels);
|
|
}
|
|
|
|
static SkSurface* create_surface(const CanvasConfig& c, GrContext* grCtx) {
|
|
SkImageInfo info = SkImageInfo::MakeN32Premul(DEV_W, DEV_H);
|
|
switch (c.fDevType) {
|
|
case kRaster_DevType: {
|
|
const size_t rowBytes = c.fTightRowBytes ? info.minRowBytes() : 4 * DEV_W + 100;
|
|
const size_t size = info.getSafeSize(rowBytes);
|
|
void* pixels = sk_malloc_throw(size);
|
|
// if rowBytes isn't tight then set the padding to a known value
|
|
if (!c.fTightRowBytes) {
|
|
memset(pixels, DEV_PAD, size);
|
|
}
|
|
return SkSurface::NewRasterDirectReleaseProc(info, pixels, rowBytes, free_pixels, NULL);
|
|
}
|
|
#if SK_SUPPORT_GPU
|
|
case kGpu_BottomLeft_DevType:
|
|
case kGpu_TopLeft_DevType:
|
|
GrSurfaceDesc desc;
|
|
desc.fFlags = kRenderTarget_GrSurfaceFlag;
|
|
desc.fWidth = DEV_W;
|
|
desc.fHeight = DEV_H;
|
|
desc.fConfig = kSkia8888_GrPixelConfig;
|
|
desc.fOrigin = kGpu_TopLeft_DevType == c.fDevType ?
|
|
kTopLeft_GrSurfaceOrigin : kBottomLeft_GrSurfaceOrigin;
|
|
SkAutoTUnref<GrTexture> texture(grCtx->createTexture(desc, false));
|
|
return SkSurface::NewRenderTargetDirect(texture->asRenderTarget());
|
|
#endif
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
static bool setup_bitmap(SkBitmap* bm, SkColorType ct, SkAlphaType at, int w, int h, int tightRB) {
|
|
size_t rowBytes = tightRB ? 0 : 4 * w + 60;
|
|
SkImageInfo info = SkImageInfo::Make(w, h, ct, at);
|
|
if (!allocRowBytes(bm, info, rowBytes)) {
|
|
return false;
|
|
}
|
|
SkAutoLockPixels alp(*bm);
|
|
for (int y = 0; y < h; ++y) {
|
|
for (int x = 0; x < w; ++x) {
|
|
*bm->getAddr32(x, y) = getBitmapColor(x, y, w, ct, at);
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
static void call_writepixels(SkCanvas* canvas) {
|
|
const SkImageInfo info = SkImageInfo::MakeN32Premul(1, 1);
|
|
SkPMColor pixel = 0;
|
|
canvas->writePixels(info, &pixel, sizeof(SkPMColor), 0, 0);
|
|
}
|
|
|
|
static void test_surface_genid(skiatest::Reporter* reporter) {
|
|
const SkImageInfo info = SkImageInfo::MakeN32Premul(100, 100);
|
|
SkAutoTUnref<SkSurface> surface(SkSurface::NewRaster(info));
|
|
uint32_t genID1 = surface->generationID();
|
|
call_writepixels(surface->getCanvas());
|
|
uint32_t genID2 = surface->generationID();
|
|
REPORTER_ASSERT(reporter, genID1 != genID2);
|
|
}
|
|
|
|
DEF_GPUTEST(WritePixels, reporter, factory) {
|
|
test_surface_genid(reporter);
|
|
|
|
SkCanvas canvas;
|
|
|
|
const SkIRect testRects[] = {
|
|
// 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),
|
|
};
|
|
|
|
for (size_t i = 0; i < SK_ARRAY_COUNT(gCanvasConfigs); ++i) {
|
|
int glCtxTypeCnt = 1;
|
|
#if SK_SUPPORT_GPU
|
|
bool isGPUDevice = kGpu_TopLeft_DevType == gCanvasConfigs[i].fDevType ||
|
|
kGpu_BottomLeft_DevType == gCanvasConfigs[i].fDevType;
|
|
if (isGPUDevice) {
|
|
glCtxTypeCnt = GrContextFactory::kGLContextTypeCnt;
|
|
}
|
|
#endif
|
|
for (int glCtxType = 0; glCtxType < glCtxTypeCnt; ++glCtxType) {
|
|
GrContext* context = NULL;
|
|
#if SK_SUPPORT_GPU
|
|
if (isGPUDevice) {
|
|
GrContextFactory::GLContextType type =
|
|
static_cast<GrContextFactory::GLContextType>(glCtxType);
|
|
if (!GrContextFactory::IsRenderingGLContext(type)) {
|
|
continue;
|
|
}
|
|
context = factory->get(type);
|
|
if (NULL == context) {
|
|
continue;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
SkAutoTUnref<SkSurface> surface(create_surface(gCanvasConfigs[i], context));
|
|
SkCanvas& canvas = *surface->getCanvas();
|
|
|
|
static const struct {
|
|
SkColorType fColorType;
|
|
SkAlphaType fAlphaType;
|
|
} gSrcConfigs[] = {
|
|
{ kRGBA_8888_SkColorType, kPremul_SkAlphaType },
|
|
{ kRGBA_8888_SkColorType, kUnpremul_SkAlphaType },
|
|
{ kBGRA_8888_SkColorType, kPremul_SkAlphaType },
|
|
{ kBGRA_8888_SkColorType, kUnpremul_SkAlphaType },
|
|
};
|
|
for (size_t r = 0; r < SK_ARRAY_COUNT(testRects); ++r) {
|
|
const SkIRect& rect = testRects[r];
|
|
for (int tightBmp = 0; tightBmp < 2; ++tightBmp) {
|
|
for (size_t c = 0; c < SK_ARRAY_COUNT(gSrcConfigs); ++c) {
|
|
const SkColorType ct = gSrcConfigs[c].fColorType;
|
|
const SkAlphaType at = gSrcConfigs[c].fAlphaType;
|
|
|
|
fillCanvas(&canvas);
|
|
SkBitmap bmp;
|
|
REPORTER_ASSERT(reporter, setup_bitmap(&bmp, ct, at, rect.width(),
|
|
rect.height(), SkToBool(tightBmp)));
|
|
uint32_t idBefore = surface->generationID();
|
|
|
|
// sk_tool_utils::write_pixels(&canvas, bmp, rect.fLeft, rect.fTop, ct, at);
|
|
canvas.writePixels(bmp, rect.fLeft, rect.fTop);
|
|
|
|
uint32_t idAfter = surface->generationID();
|
|
REPORTER_ASSERT(reporter, check_write(reporter, &canvas, bmp,
|
|
rect.fLeft, rect.fTop));
|
|
|
|
// we should change the genID iff pixels were actually written.
|
|
SkIRect canvasRect = SkIRect::MakeSize(canvas.getDeviceSize());
|
|
SkIRect writeRect = SkIRect::MakeXYWH(rect.fLeft, rect.fTop,
|
|
bmp.width(), bmp.height());
|
|
bool intersects = SkIRect::Intersects(canvasRect, writeRect) ;
|
|
REPORTER_ASSERT(reporter, intersects == (idBefore != idAfter));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|