void GrGLCaps::initFSAASupport(const GrGLContextInfo& ctxInfo) {
fMSFBOType = kNone_MSFBOType;
if (kDesktop_GrGLBinding != ctxInfo.binding()) {
if (ctxInfo.hasExtension("GL_CHROMIUM_framebuffer_multisample")) {
// chrome's extension is equivalent to the EXT msaa
// and fbo_blit extensions.
fMSFBOType = kDesktopEXT_MSFBOType;
} else if (ctxInfo.hasExtension("GL_APPLE_framebuffer_multisample")) {
fMSFBOType = kAppleES_MSFBOType;
}
} else {
if ((ctxInfo.version() >= GR_GL_VER(3,0)) ||
ctxInfo.hasExtension("GL_ARB_framebuffer_object")) {
fMSFBOType = GrGLCaps::kDesktopARB_MSFBOType;
} else if (ctxInfo.hasExtension("GL_EXT_framebuffer_multisample") &&
ctxInfo.hasExtension("GL_EXT_framebuffer_blit")) {
fMSFBOType = GrGLCaps::kDesktopEXT_MSFBOType;
}
// TODO: We could populate fMSAACoverageModes using GetInternalformativ
// on GL 4.2+. It's format-specific, though. See also
// http://code.google.com/p/skia/issues/detail?id=470 about using actual
// rather than requested sample counts in cache key.
if (ctxInfo.hasExtension("GL_NV_framebuffer_multisample_coverage")) {
fCoverageAAType = kNVDesktop_CoverageAAType;
GrGLint count;
GR_GL_GetIntegerv(ctxInfo.interface(),
GR_GL_MAX_MULTISAMPLE_COVERAGE_MODES,
&count);
fMSAACoverageModes.setCount(count);
GR_GL_GetIntegerv(ctxInfo.interface(),
GR_GL_MULTISAMPLE_COVERAGE_MODES,
(int*)&fMSAACoverageModes[0]);
// The NV driver seems to return the modes already sorted but the
// spec doesn't require this. So we sort.
qsort(&fMSAACoverageModes[0],
count,
sizeof(MSAACoverageMode),
SkCastForQSort(coverage_mode_compare));
}
}
if (kNone_MSFBOType != fMSFBOType) {
GR_GL_GetIntegerv(ctxInfo.interface(),
GR_GL_MAX_SAMPLES,
&fMaxSampleCount);
}
}
/// Creates difference images, returns the number that have a 0 metric.
/// If outputDir.isEmpty(), don't write out diff files.
static void create_diff_images (DiffMetricProc dmp,
const int colorThreshold,
RecordArray* differences,
const SkString& baseDir,
const SkString& comparisonDir,
const SkString& outputDir,
const StringArray& matchSubstrings,
const StringArray& nomatchSubstrings,
bool recurseIntoSubdirs,
bool getBounds,
bool verbose,
DiffSummary* summary) {
SkASSERT(!baseDir.isEmpty());
SkASSERT(!comparisonDir.isEmpty());
FileArray baseFiles;
FileArray comparisonFiles;
get_file_list(baseDir, matchSubstrings, nomatchSubstrings, recurseIntoSubdirs, &baseFiles);
get_file_list(comparisonDir, matchSubstrings, nomatchSubstrings, recurseIntoSubdirs,
&comparisonFiles);
if (!baseFiles.isEmpty()) {
qsort(baseFiles.begin(), baseFiles.count(), sizeof(SkString*),
SkCastForQSort(compare_file_name_metrics));
}
if (!comparisonFiles.isEmpty()) {
qsort(comparisonFiles.begin(), comparisonFiles.count(),
sizeof(SkString*), SkCastForQSort(compare_file_name_metrics));
}
int i = 0;
int j = 0;
while (i < baseFiles.count() &&
j < comparisonFiles.count()) {
SkString basePath(baseDir);
SkString comparisonPath(comparisonDir);
DiffRecord *drp = new DiffRecord;
int v = strcmp(baseFiles[i]->c_str(), comparisonFiles[j]->c_str());
if (v < 0) {
// in baseDir, but not in comparisonDir
drp->fResult = DiffRecord::kCouldNotCompare_Result;
basePath.append(*baseFiles[i]);
comparisonPath.append(*baseFiles[i]);
drp->fBase.fFilename = *baseFiles[i];
drp->fBase.fFullPath = basePath;
drp->fBase.fStatus = DiffResource::kExists_Status;
drp->fComparison.fFilename = *baseFiles[i];
drp->fComparison.fFullPath = comparisonPath;
drp->fComparison.fStatus = DiffResource::kDoesNotExist_Status;
VERBOSE_STATUS("MISSING", ANSI_COLOR_YELLOW, baseFiles[i]);
++i;
} else if (v > 0) {
// in comparisonDir, but not in baseDir
drp->fResult = DiffRecord::kCouldNotCompare_Result;
basePath.append(*comparisonFiles[j]);
comparisonPath.append(*comparisonFiles[j]);
drp->fBase.fFilename = *comparisonFiles[j];
drp->fBase.fFullPath = basePath;
drp->fBase.fStatus = DiffResource::kDoesNotExist_Status;
drp->fComparison.fFilename = *comparisonFiles[j];
drp->fComparison.fFullPath = comparisonPath;
drp->fComparison.fStatus = DiffResource::kExists_Status;
VERBOSE_STATUS("MISSING", ANSI_COLOR_YELLOW, comparisonFiles[j]);
++j;
} else {
// Found the same filename in both baseDir and comparisonDir.
SkASSERT(DiffRecord::kUnknown_Result == drp->fResult);
basePath.append(*baseFiles[i]);
comparisonPath.append(*comparisonFiles[j]);
drp->fBase.fFilename = *baseFiles[i];
drp->fBase.fFullPath = basePath;
drp->fBase.fStatus = DiffResource::kExists_Status;
drp->fComparison.fFilename = *comparisonFiles[j];
drp->fComparison.fFullPath = comparisonPath;
drp->fComparison.fStatus = DiffResource::kExists_Status;
SkAutoDataUnref baseFileBits(read_file(drp->fBase.fFullPath.c_str()));
if (baseFileBits) {
drp->fBase.fStatus = DiffResource::kRead_Status;
}
SkAutoDataUnref comparisonFileBits(read_file(drp->fComparison.fFullPath.c_str()));
if (comparisonFileBits) {
drp->fComparison.fStatus = DiffResource::kRead_Status;
}
if (NULL == baseFileBits || NULL == comparisonFileBits) {
if (NULL == baseFileBits) {
drp->fBase.fStatus = DiffResource::kCouldNotRead_Status;
VERBOSE_STATUS("READ FAIL", ANSI_COLOR_RED, baseFiles[i]);
}
if (NULL == comparisonFileBits) {
drp->fComparison.fStatus = DiffResource::kCouldNotRead_Status;
VERBOSE_STATUS("READ FAIL", ANSI_COLOR_RED, comparisonFiles[j]);
}
drp->fResult = DiffRecord::kCouldNotCompare_Result;
} else if (are_buffers_equal(baseFileBits, comparisonFileBits)) {
drp->fResult = DiffRecord::kEqualBits_Result;
VERBOSE_STATUS("MATCH", ANSI_COLOR_GREEN, baseFiles[i]);
} else {
AutoReleasePixels arp(drp);
get_bitmap(baseFileBits, drp->fBase, SkImageDecoder::kDecodePixels_Mode);
get_bitmap(comparisonFileBits, drp->fComparison,
SkImageDecoder::kDecodePixels_Mode);
VERBOSE_STATUS("DIFFERENT", ANSI_COLOR_RED, baseFiles[i]);
if (DiffResource::kDecoded_Status == drp->fBase.fStatus &&
DiffResource::kDecoded_Status == drp->fComparison.fStatus) {
create_and_write_diff_image(drp, dmp, colorThreshold,
outputDir, drp->fBase.fFilename);
} else {
drp->fResult = DiffRecord::kCouldNotCompare_Result;
}
}
++i;
++j;
}
if (getBounds) {
get_bounds(*drp);
}
SkASSERT(DiffRecord::kUnknown_Result != drp->fResult);
differences->push(drp);
summary->add(drp);
}
for (; i < baseFiles.count(); ++i) {
// files only in baseDir
DiffRecord *drp = new DiffRecord();
drp->fBase.fFilename = *baseFiles[i];
drp->fBase.fFullPath = baseDir;
drp->fBase.fFullPath.append(drp->fBase.fFilename);
drp->fBase.fStatus = DiffResource::kExists_Status;
drp->fComparison.fFilename = *baseFiles[i];
drp->fComparison.fFullPath = comparisonDir;
drp->fComparison.fFullPath.append(drp->fComparison.fFilename);
drp->fComparison.fStatus = DiffResource::kDoesNotExist_Status;
drp->fResult = DiffRecord::kCouldNotCompare_Result;
if (getBounds) {
get_bounds(*drp);
}
differences->push(drp);
summary->add(drp);
}
for (; j < comparisonFiles.count(); ++j) {
// files only in comparisonDir
DiffRecord *drp = new DiffRecord();
drp->fBase.fFilename = *comparisonFiles[j];
drp->fBase.fFullPath = baseDir;
drp->fBase.fFullPath.append(drp->fBase.fFilename);
drp->fBase.fStatus = DiffResource::kDoesNotExist_Status;
drp->fComparison.fFilename = *comparisonFiles[j];
drp->fComparison.fFullPath = comparisonDir;
drp->fComparison.fFullPath.append(drp->fComparison.fFilename);
drp->fComparison.fStatus = DiffResource::kExists_Status;
drp->fResult = DiffRecord::kCouldNotCompare_Result;
if (getBounds) {
get_bounds(*drp);
}
differences->push(drp);
summary->add(drp);
}
release_file_list(&baseFiles);
release_file_list(&comparisonFiles);
}
