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#include "gm.h"
#include "SkColorPriv.h"
#include "SkGraphics.h"
#include "SkImageDecoder.h"
#include "SkImageEncoder.h"
using namespace skiagm;
// need to explicitly declare this, or we get some weird infinite loop llist
template GMRegistry* GMRegistry::gHead;
class Iter {
public:
Iter() {
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 SkString& name) {
SkString filename(path);
if (filename.size() && filename[filename.size() - 1] != '/') {
filename.append("/");
}
filename.appendf("%s.png", name.c_str());
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(©, SkBitmap::kARGB_8888_Config);
force_all_opaque(copy);
return SkImageEncoder::EncodeFile(path.c_str(), copy,
SkImageEncoder::kPNG_Type, 100);
}
static void compare(const SkBitmap& target, const SkBitmap& base,
const SkString& name) {
SkBitmap copy;
const SkBitmap* bm = ⌖
if (target.config() != SkBitmap::kARGB_8888_Config) {
target.copyTo(©, SkBitmap::kARGB_8888_Config);
bm = ©
}
force_all_opaque(*bm);
const int w = bm->width();
const int h = bm->height();
if (w != base.width() || h != base.height()) {
SkDebugf("---- dimensions mismatch for %s base [%d %d] current [%d %d]\n",
name.c_str(), base.width(), base.height(), w, h);
return;
}
SkAutoLockPixels bmLock(*bm);
SkAutoLockPixels baseLock(base);
for (int y = 0; y < h; y++) {
for (int x = 0; x < w; x++) {
SkPMColor c0 = *base.getAddr32(x, y);
SkPMColor c1 = *bm->getAddr32(x, y);
if (c0 != c1) {
SkDebugf("----- pixel mismatch for %s at [%d %d] base 0x%08X current 0x%08X\n",
name.c_str(), x, y, c0, c1);
return;
}
}
}
}
static const struct {
SkBitmap::Config fConfig;
bool fUsePicture;
const char* fName;
} gRec[] = {
{ SkBitmap::kARGB_8888_Config, false, "8888" },
{ SkBitmap::kARGB_4444_Config, false, "4444" },
{ SkBitmap::kRGB_565_Config, false, "565" },
};
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
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;
}
}
}
Iter iter;
GM* gm;
while ((gm = iter.next()) != NULL) {
SkISize size = gm->getISize();
SkDebugf("creating... %s [%d %d]\n", gm->shortName(),
size.width(), size.height());
SkBitmap bitmap;
for (size_t i = 0; i < SK_ARRAY_COUNT(gRec); i++) {
bitmap.setConfig(gRec[i].fConfig, size.width(), size.height());
bitmap.allocPixels();
bitmap.eraseColor(0);
SkCanvas canvas(bitmap);
gm->draw(&canvas);
SkString name = make_name(gm->shortName(), gRec[i].fName);
if (writePath) {
SkString path = make_filename(writePath, name);
bool success = write_bitmap(path, bitmap);
if (!success) {
fprintf(stderr, "FAILED to write %s\n", path.c_str());
}
} else if (readPath) {
SkString path = make_filename(readPath, name);
SkBitmap orig;
bool success = SkImageDecoder::DecodeFile(path.c_str(), &orig,
SkBitmap::kARGB_8888_Config,
SkImageDecoder::kDecodePixels_Mode, NULL);
if (success) {
compare(bitmap, orig, name);
} else {
fprintf(stderr, "FAILED to read %s\n", path.c_str());
}
}
}
SkDELETE(gm);
}
return 0;
}
///////////////////////////////////////////////////////////////////////////////
using namespace skiagm;
GM::GM() {}
GM::~GM() {}
void GM::draw(SkCanvas* canvas) {
this->onDraw(canvas);
}
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