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moz-skia
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moz-skia/gm/gmmain.cpp

644 строки
21 KiB
C++
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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 "gm.h"
#include "GrContext.h"
#include "GrRenderTarget.h"
#include "SkColorPriv.h"
#include "SkData.h"
#include "SkDevice.h"
#include "SkEGLContext.h"
#include "SkGpuCanvas.h"
#include "SkGpuDevice.h"
#include "SkGraphics.h"
#include "SkImageDecoder.h"
#include "SkImageEncoder.h"
#include "SkPicture.h"
#include "SkStream.h"
#include "SkRefCnt.h"
#ifdef SK_SUPPORT_PDF
#include "SkPDFDevice.h"
#include "SkPDFDocument.h"
#endif
#ifdef SK_BUILD_FOR_MAC
#include "SkCGUtils.h"
#define CAN_IMAGE_PDF 1
#else
#define CAN_IMAGE_PDF 0
#endif
using namespace skiagm;
// need to explicitly declare this, or we get some weird infinite loop llist
template GMRegistry* SkTRegistry<GM*, void*>::gHead;
class Iter {
public:
Iter() {
this->reset();
}
void reset() {
fReg = GMRegistry::Head();
}
GM* next() {
if (fReg) {
GMRegistry::Factory fact = fReg->factory();
fReg = fReg->next();
return fact(0);
}
return NULL;
}
static int Count() {
const GMRegistry* reg = GMRegistry::Head();
int count = 0;
while (reg) {
count += 1;
reg = reg->next();
}
return count;
}
private:
const GMRegistry* fReg;
};
static SkString make_name(const char shortName[], const char configName[]) {
SkString name(shortName);
name.appendf("_%s", configName);
return name;
}
static SkString make_filename(const char path[],
const char pathSuffix[],
const SkString& name,
const char suffix[]) {
SkString filename(path);
if (filename.endsWith("/")) {
filename.remove(filename.size() - 1, 1);
}
filename.append(pathSuffix);
filename.append("/");
filename.appendf("%s.%s", name.c_str(), suffix);
return filename;
}
/* since PNG insists on unpremultiplying our alpha, we take no precision chances
and force all pixels to be 100% opaque, otherwise on compare we may not get
a perfect match.
*/
static void force_all_opaque(const SkBitmap& bitmap) {
SkAutoLockPixels lock(bitmap);
for (int y = 0; y < bitmap.height(); y++) {
for (int x = 0; x < bitmap.width(); x++) {
*bitmap.getAddr32(x, y) |= (SK_A32_MASK << SK_A32_SHIFT);
}
}
}
static bool write_bitmap(const SkString& path, const SkBitmap& bitmap) {
SkBitmap copy;
bitmap.copyTo(&copy, SkBitmap::kARGB_8888_Config);
force_all_opaque(copy);
return SkImageEncoder::EncodeFile(path.c_str(), copy,
SkImageEncoder::kPNG_Type, 100);
}
static inline SkPMColor compute_diff_pmcolor(SkPMColor c0, SkPMColor c1) {
int dr = SkGetPackedR32(c0) - SkGetPackedR32(c1);
int dg = SkGetPackedG32(c0) - SkGetPackedG32(c1);
int db = SkGetPackedB32(c0) - SkGetPackedB32(c1);
return SkPackARGB32(0xFF, SkAbs32(dr), SkAbs32(dg), SkAbs32(db));
}
static void compute_diff(const SkBitmap& target, const SkBitmap& base,
SkBitmap* diff) {
SkAutoLockPixels alp(*diff);
const int w = target.width();
const int h = target.height();
for (int y = 0; y < h; y++) {
for (int x = 0; x < w; x++) {
SkPMColor c0 = *base.getAddr32(x, y);
SkPMColor c1 = *target.getAddr32(x, y);
SkPMColor d = 0;
if (c0 != c1) {
d = compute_diff_pmcolor(c0, c1);
}
*diff->getAddr32(x, y) = d;
}
}
}
static bool compare(const SkBitmap& target, const SkBitmap& base,
const SkString& name, const char* renderModeDescriptor,
SkBitmap* diff) {
SkBitmap copy;
const SkBitmap* bm = &target;
if (target.config() != SkBitmap::kARGB_8888_Config) {
target.copyTo(&copy, SkBitmap::kARGB_8888_Config);
bm = &copy;
}
SkBitmap baseCopy;
const SkBitmap* bp = &base;
if (base.config() != SkBitmap::kARGB_8888_Config) {
base.copyTo(&baseCopy, SkBitmap::kARGB_8888_Config);
bp = &baseCopy;
}
force_all_opaque(*bm);
force_all_opaque(*bp);
const int w = bm->width();
const int h = bm->height();
if (w != bp->width() || h != bp->height()) {
SkDebugf(
"---- %s dimensions mismatch for %s base [%d %d] current [%d %d]\n",
renderModeDescriptor, name.c_str(),
bp->width(), bp->height(), w, h);
return false;
}
SkAutoLockPixels bmLock(*bm);
SkAutoLockPixels baseLock(*bp);
for (int y = 0; y < h; y++) {
for (int x = 0; x < w; x++) {
SkPMColor c0 = *bp->getAddr32(x, y);
SkPMColor c1 = *bm->getAddr32(x, y);
if (c0 != c1) {
SkDebugf(
"----- %s pixel mismatch for %s at [%d %d] base 0x%08X current 0x%08X\n",
renderModeDescriptor, name.c_str(), x, y, c0, c1);
if (diff) {
diff->setConfig(SkBitmap::kARGB_8888_Config, w, h);
diff->allocPixels();
compute_diff(*bm, *bp, diff);
}
return false;
}
}
}
// they're equal
return true;
}
static bool write_pdf(const SkString& path, const SkDynamicMemoryWStream& pdf) {
SkFILEWStream stream(path.c_str());
SkAutoDataUnref data(pdf.copyToData());
return stream.writeData(data.get());
}
enum Backend {
kRaster_Backend,
kGPU_Backend,
kPDF_Backend,
};
struct ConfigData {
SkBitmap::Config fConfig;
Backend fBackend;
const char* fName;
};
/// Returns true if processing should continue, false to skip the
/// remainder of this config for this GM.
//@todo thudson 22 April 2011 - could refactor this to take in
// a factory to generate the context, always call readPixels()
// (logically a noop for rasters, if wasted time), and thus collapse the
// GPU special case and also let this be used for SkPicture testing.
static void setup_bitmap(const ConfigData& gRec, SkISize& size,
SkBitmap* bitmap) {
bitmap->setConfig(gRec.fConfig, size.width(), size.height());
bitmap->allocPixels();
bitmap->eraseColor(0);
}
// Returns true if the test should continue, false if the test should
// halt.
static bool generate_image(GM* gm, const ConfigData& gRec,
GrContext* context,
GrRenderTarget* rt,
SkBitmap* bitmap) {
SkISize size (gm->getISize());
setup_bitmap(gRec, size, bitmap);
SkCanvas canvas(*bitmap);
if (gRec.fBackend == kRaster_Backend) {
gm->draw(&canvas);
} else { // GPU
if (NULL == context) {
return false;
}
SkGpuCanvas gc(context, rt);
gc.setDevice(new SkGpuDevice(context, rt))->unref();
gm->draw(&gc);
// the device is as large as the current rendertarget, so we explicitly
// only readback the amount we expect (in size)
// overwrite our previous allocation
gc.readPixels(SkIRect::MakeSize(size), bitmap);
}
return true;
}
static void generate_image_from_picture(GM* gm, const ConfigData& gRec,
SkPicture* pict, SkBitmap* bitmap) {
SkISize size = gm->getISize();
setup_bitmap(gRec, size, bitmap);
SkCanvas canvas(*bitmap);
canvas.drawPicture(*pict);
}
static void generate_pdf(GM* gm, SkDynamicMemoryWStream& pdf) {
#ifdef SK_SUPPORT_PDF
SkISize size = gm->getISize();
SkMatrix identity;
identity.reset();
SkPDFDevice* dev = new SkPDFDevice(size, size, identity);
SkAutoUnref aur(dev);
SkCanvas c(dev);
gm->draw(&c);
SkPDFDocument doc;
doc.appendPage(dev);
doc.emitPDF(&pdf);
#endif
}
static bool write_reference_image(const ConfigData& gRec,
const char writePath [],
const char renderModeDescriptor [],
const SkString& name,
SkBitmap& bitmap,
SkDynamicMemoryWStream* pdf) {
SkString path;
bool success = false;
if (gRec.fBackend != kPDF_Backend || CAN_IMAGE_PDF) {
path = make_filename(writePath, renderModeDescriptor, name, "png");
success = write_bitmap(path, bitmap);
}
if (kPDF_Backend == gRec.fBackend) {
path = make_filename(writePath, renderModeDescriptor, name, "pdf");
success = write_pdf(path, *pdf);
}
if (!success) {
fprintf(stderr, "FAILED to write %s\n", path.c_str());
}
return success;
}
static bool compare_to_reference_image(const SkString& name,
SkBitmap &bitmap,
const SkBitmap& comparisonBitmap,
const char diffPath [],
const char renderModeDescriptor []) {
bool success;
SkBitmap diffBitmap;
success = compare(bitmap, comparisonBitmap, name, renderModeDescriptor,
diffPath ? &diffBitmap : NULL);
if (!success && diffPath) {
SkString diffName = make_filename(diffPath, "", name, ".diff.png");
write_bitmap(diffName, diffBitmap);
}
return success;
}
static bool compare_to_reference_image(const char readPath [],
const SkString& name,
SkBitmap &bitmap,
const char diffPath [],
const char renderModeDescriptor []) {
SkString path = make_filename(readPath, "", name, "png");
SkBitmap orig;
bool success = SkImageDecoder::DecodeFile(path.c_str(), &orig,
SkBitmap::kARGB_8888_Config,
SkImageDecoder::kDecodePixels_Mode, NULL);
if (success) {
success = compare_to_reference_image(name, bitmap,
orig, diffPath,
renderModeDescriptor);
} else {
fprintf(stderr, "FAILED to read %s\n", path.c_str());
// we lie here, and report succes, since we're just missing a master
// image. This way we can check in new tests, and not report failure.
// A real failure is to draw *differently* from the master image, but
// that's not the case here.
success = true;
}
return success;
}
static bool handle_test_results(GM* gm,
const ConfigData& gRec,
const char writePath [],
const char readPath [],
const char diffPath [],
const char renderModeDescriptor [],
SkBitmap& bitmap,
SkDynamicMemoryWStream* pdf,
const SkBitmap* comparisonBitmap) {
SkString name = make_name(gm->shortName(), gRec.fName);
if (writePath) {
write_reference_image(gRec, writePath, renderModeDescriptor,
name, bitmap, pdf);
} else if (readPath && (gRec.fBackend != kPDF_Backend || CAN_IMAGE_PDF)) {
return compare_to_reference_image(readPath, name, bitmap,
diffPath, renderModeDescriptor);
} else if (comparisonBitmap) {
return compare_to_reference_image(name, bitmap,
*comparisonBitmap, diffPath,
renderModeDescriptor);
}
return true;
}
static SkPicture* generate_new_picture(GM* gm) {
// Pictures are refcounted so must be on heap
SkPicture* pict = new SkPicture;
SkCanvas* cv = pict->beginRecording(1000, 1000);
gm->draw(cv);
pict->endRecording();
return pict;
}
static SkPicture* stream_to_new_picture(const SkPicture& src) {
// To do in-memory commiunications with a stream, we need to:
// * create a dynamic memory stream
// * copy it into a buffer
// * create a read stream from it
// ?!?!
SkDynamicMemoryWStream storage;
src.serialize(&storage);
int streamSize = storage.getOffset();
SkAutoMalloc dstStorage(streamSize);
void* dst = dstStorage.get();
//char* dst = new char [streamSize];
//@todo thudson 22 April 2011 when can we safely delete [] dst?
storage.copyTo(dst);
SkMemoryStream pictReadback(dst, streamSize);
SkPicture* retval = new SkPicture (&pictReadback);
return retval;
}
// Test: draw into a bitmap or pdf.
// Depending on flags, possibly compare to an expected image
// and possibly output a diff image if it fails to match.
static bool test_drawing(GM* gm,
const ConfigData& gRec,
const char writePath [],
const char readPath [],
const char diffPath [],
GrContext* context,
GrRenderTarget* rt,
SkBitmap* bitmap) {
SkDynamicMemoryWStream pdf;
if (gRec.fBackend == kRaster_Backend ||
gRec.fBackend == kGPU_Backend) {
// Early exit if we can't generate the image, but this is
// expected in some cases, so don't report a test failure.
if (!generate_image(gm, gRec, context, rt, bitmap)) {
return true;
}
} else if (gRec.fBackend == kPDF_Backend) {
generate_pdf(gm, pdf);
#if CAN_IMAGE_PDF
SkAutoDataUnref data(pdf.copyToData());
SkMemoryStream stream(data.data(), data.size());
SkPDFDocumentToBitmap(&stream, bitmap);
#endif
}
return handle_test_results(gm, gRec, writePath, readPath, diffPath,
"", *bitmap, &pdf, NULL);
}
static bool test_picture_playback(GM* gm,
const ConfigData& gRec,
const SkBitmap& comparisonBitmap,
const char readPath [],
const char diffPath []) {
if (!gm->validForPicture()) {
return true;
}
SkPicture* pict = generate_new_picture(gm);
SkAutoUnref aur(pict);
if (kRaster_Backend == gRec.fBackend) {
SkBitmap bitmap;
generate_image_from_picture(gm, gRec, pict, &bitmap);
return handle_test_results(gm, gRec, NULL, NULL, diffPath,
"-replay", bitmap, NULL, &comparisonBitmap);
}
return true;
}
static bool test_picture_serialization(GM* gm,
const ConfigData& gRec,
const SkBitmap& comparisonBitmap,
const char readPath [],
const char diffPath []) {
SkPicture* pict = generate_new_picture(gm);
SkAutoUnref aurp(pict);
SkPicture* repict = stream_to_new_picture(*pict);
SkAutoUnref aurr(repict);
if (kRaster_Backend == gRec.fBackend) {
SkBitmap bitmap;
generate_image_from_picture(gm, gRec, repict, &bitmap);
return handle_test_results(gm, gRec, NULL, NULL, diffPath,
"-serialize", bitmap, NULL, &comparisonBitmap);
}
return true;
}
static void usage(const char * argv0) {
SkDebugf("%s [-w writePath] [-r readPath] [-d diffPath]\n", argv0);
SkDebugf(" [--replay] [--serialize]\n");
SkDebugf(" writePath: directory to write rendered images in.\n");
SkDebugf(
" readPath: directory to read reference images from;\n"
" reports if any pixels mismatch between reference and new images\n");
SkDebugf(" diffPath: directory to write difference images in.\n");
SkDebugf(" --replay: exercise SkPicture replay.\n");
SkDebugf(
" --serialize: exercise SkPicture serialization & deserialization.\n");
SkDebugf(" --match foo will only run tests that substring match foo.\n");
}
static const ConfigData gRec[] = {
{ SkBitmap::kARGB_8888_Config, kRaster_Backend, "8888" },
{ SkBitmap::kARGB_4444_Config, kRaster_Backend, "4444" },
{ SkBitmap::kRGB_565_Config, kRaster_Backend, "565" },
#ifdef SK_SCALAR_IS_FLOAT
{ SkBitmap::kARGB_8888_Config, kGPU_Backend, "gpu" },
#endif
#ifdef SK_SUPPORT_PDF
{ SkBitmap::kARGB_8888_Config, kPDF_Backend, "pdf" },
#endif
};
namespace skiagm {
static GrContext* gGrContext;
GrContext* GetGr() {
return gGrContext;
}
}
int main(int argc, char * const argv[]) {
SkAutoGraphics ag;
const char* writePath = NULL; // if non-null, where we write the originals
const char* readPath = NULL; // if non-null, were we read from to compare
const char* diffPath = NULL; // if non-null, where we write our diffs (from compare)
const char* matchStr = NULL;
bool doReplay = true;
bool doSerialize = false;
const char* const commandName = argv[0];
char* const* stop = argv + argc;
for (++argv; argv < stop; ++argv) {
if (strcmp(*argv, "-w") == 0) {
argv++;
if (argv < stop && **argv) {
writePath = *argv;
}
} else if (strcmp(*argv, "-r") == 0) {
argv++;
if (argv < stop && **argv) {
readPath = *argv;
}
} else if (strcmp(*argv, "-d") == 0) {
argv++;
if (argv < stop && **argv) {
diffPath = *argv;
}
} else if (strcmp(*argv, "--noreplay") == 0) {
doReplay = false;
} else if (strcmp(*argv, "--serialize") == 0) {
doSerialize = true;
} else if (strcmp(*argv, "--match") == 0) {
++argv;
if (argv < stop && **argv) {
matchStr = *argv;
}
} else {
usage(commandName);
return -1;
}
}
if (argv != stop) {
usage(commandName);
return -1;
}
int maxW = -1;
int maxH = -1;
Iter iter;
GM* gm;
while ((gm = iter.next()) != NULL) {
SkISize size = gm->getISize();
maxW = SkMax32(size.width(), maxW);
maxH = SkMax32(size.height(), maxH);
}
// setup a GL context for drawing offscreen
SkEGLContext eglContext;
GrRenderTarget* rt = NULL;
if (eglContext.init(maxW, maxH)) {
gGrContext = GrContext::CreateGLShaderContext();
if (NULL != gGrContext) {
GrPlatformSurfaceDesc desc;
desc.reset();
desc.fConfig = kRGBA_8888_GrPixelConfig;
desc.fWidth = maxW;
desc.fHeight = maxH;
desc.fStencilBits = 8;
desc.fPlatformRenderTarget = eglContext.getFBOID();
desc.fSurfaceType = kRenderTarget_GrPlatformSurfaceType;
rt = static_cast<GrRenderTarget*>(gGrContext->createPlatformSurface(desc));
if (NULL == rt) {
gGrContext->unref();
gGrContext = NULL;
}
}
}
if (readPath) {
fprintf(stderr, "reading from %s\n", readPath);
} else if (writePath) {
fprintf(stderr, "writing to %s\n", writePath);
}
// Accumulate success of all tests so we can flag error in any
// one with the return value.
iter.reset();
bool overallSuccess = true;
while ((gm = iter.next()) != NULL) {
const char* shortName = gm->shortName();
if (matchStr && !strstr(shortName, matchStr)) {
SkDELETE(gm);
continue;
}
SkISize size = gm->getISize();
SkDebugf("drawing... %s [%d %d]\n", shortName,
size.width(), size.height());
SkBitmap forwardRenderedBitmap;
for (size_t i = 0; i < SK_ARRAY_COUNT(gRec); i++) {
bool testSuccess = test_drawing(gm, gRec[i],
writePath, readPath, diffPath, gGrContext,
rt, &forwardRenderedBitmap);
overallSuccess &= testSuccess;
if (doReplay && testSuccess) {
testSuccess = test_picture_playback(gm, gRec[i],
forwardRenderedBitmap,
readPath, diffPath);
overallSuccess &= testSuccess;
}
if (doSerialize && testSuccess) {
testSuccess &= test_picture_serialization(gm, gRec[i],
forwardRenderedBitmap,
readPath, diffPath);
overallSuccess &= testSuccess;
}
}
SkDELETE(gm);
}
if (false == overallSuccess) {
return -1;
}
return 0;
}
///////////////////////////////////////////////////////////////////////////////
using namespace skiagm;
GM::GM() {}
GM::~GM() {}
void GM::draw(SkCanvas* canvas) {
this->onDraw(canvas);
}
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