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[quartz] Use CoreGraphics instead of Qt to write debug png file.

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This commit is contained in:
John Ralls 2022-02-19 18:34:01 -08:00
parent bacbe9bb2d
commit ae320c4d75
1 changed files with 27 additions and 75 deletions
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102
src/cairo-quartz-surface.c
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@ -129,8 +129,8 @@ static cairo_bool_t _cairo_quartz_symbol_lookup_done = FALSE;
*/
#ifdef QUARTZ_DEBUG
static void quartz_surface_to_png (cairo_quartz_surface_t *nq, char *dest);
static void quartz_image_to_png (CGImageRef, char *dest);
static void quartz_surface_to_png (cairo_quartz_surface_t *nq, const char *dest);
static void quartz_image_to_png (CGImageRef, const char *dest);
#endif
typedef struct
@ -2646,95 +2646,47 @@ _cairo_quartz_surface_snapshot_get_image (cairo_quartz_surface_t *surface)
#ifdef QUARTZ_DEBUG
#include <Movies.h>
void ExportCGImageToPNGFile (CGImageRef inImageRef, char* dest)
{
Handle dataRef = NULL;
OSType dataRefType;
CFStringRef inPath = CFStringCreateWithCString (NULL, dest, kCFStringEncodingASCII);
GraphicsExportComponent grex = 0;
unsigned long sizeWritten;
ComponentResult result;
// create the data reference
result = QTNewDataReferenceFromFullPathCFString (inPath, kQTNativeDefaultPathStyle,
0, &dataRef, &dataRefType);
if (NULL != dataRef && noErr == result) {
// get the PNG exporter
result = OpenADefaultComponent (GraphicsExporterComponentType, kQTFileTypePNG,
&grex);
if (grex) {
// tell the exporter where to find its source image
result = GraphicsExportSetInputCGImage (grex, inImageRef);
if (noErr == result) {
// tell the exporter where to save the exporter image
result = GraphicsExportSetOutputDataReference (grex, dataRef,
dataRefType);
if (noErr == result) {
// write the PNG file
result = GraphicsExportDoExport (grex, &sizeWritten);
}
}
// remember to close the component
CloseComponent (grex);
}
// remember to dispose of the data reference handle
DisposeHandle (dataRef);
}
}
void
quartz_image_to_png (CGImageRef imgref, char *dest)
quartz_image_to_png (CGImageRef image, const char *dest)
{
static int sctr = 0;
char sptr[] = "/Users/vladimir/Desktop/barXXXXX.png";
const char* image_name = "quartz-image";
char pathbuf[100];
if (dest == NULL) {
fprintf (stderr, "** Writing %p to bar%d\n", imgref, sctr);
sprintf (sptr, "/Users/vladimir/Desktop/bar%d.png", sctr);
sctr++;
dest = sptr;
}
CFStringRef png_utti = CFSTR("public.png");
CFStringRef path;
CFURLRef url;
CGImageDestinationRef image_dest;
ExportCGImageToPNGFile (imgref, dest);
}
memset (pathbuf, 0, sizeof (pathbuf));
dest = dest ? dest : image_name;
snprintf (pathbuf, sizeof (pathbuf), "%s/Desktop/%s%d.png",getenv ("HOME"), dest, sctr++, ext);
path = CFStringCreateWithCString (NULL, pathbuf, kCFStringEncodingUTF8);
url = CFURLCreateWithFileSystemPath (NULL, path, kCFURLPOSIXPathStyle, FALSE);
image_dest = CGImageDestinationCreateWithURL (url, png_utti, 1, NULL);
CGImageDestinationAddImage (image_dest, image, NULL);
CGImageDestinationFinalize (image_dest);
CFRelease (url);
CFRelease (path);
}
void
quartz_surface_to_png (cairo_quartz_surface_t *nq, char *dest)
quartz_surface_to_png (cairo_quartz_surface_t *nq, const char *dest)
{
static int sctr = 0;
char sptr[] = "/Users/vladimir/Desktop/fooXXXXX.png";
CGImageRef image;
if (nq->base.type != CAIRO_SURFACE_TYPE_QUARTZ) {
fprintf (stderr, "** quartz_surface_to_png: surface %p isn't quartz!\n", nq);
return;
}
if (dest == NULL) {
fprintf (stderr, "** Writing %p to foo%d\n", nq, sctr);
sprintf (sptr, "/Users/vladimir/Desktop/foo%d.png", sctr);
sctr++;
dest = sptr;
}
image = CGBitmapContextCreateImage (nq->cgContext);
quartz_image_to_png (image, dest);
CGImageRef imgref = CGBitmapContextCreateImage (nq->cgContext);
if (imgref == NULL) {
fprintf (stderr, "quartz surface at %p is not a bitmap context!\n", nq);
return;
}
ExportCGImageToPNGFile (imgref, dest);
CGImageRelease (imgref);
CGImageRelease (image);
}
#endif /* QUARTZ_DEBUG */