bc210eb163
This patch adds an x argument to qemu_pixman_linebuf_fill so it can also be used to convert a partial scanline. Then fix tight + png/jpeg encoding by passing in the x+y offset, so the data is read from the correct screen location instead of the upper left corner. Cc: 1087974@bugs.launchpad.net Cc: qemu-stable@nongnu.org Reported-by: Tim Hardeneck <thardeck@suse.de> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
81 lines
2.2 KiB
C
81 lines
2.2 KiB
C
/*
|
|
* This work is licensed under the terms of the GNU GPL, version 2 or later.
|
|
* See the COPYING file in the top-level directory.
|
|
*/
|
|
|
|
#include "qemu-pixman.h"
|
|
|
|
int qemu_pixman_get_type(int rshift, int gshift, int bshift)
|
|
{
|
|
int type = PIXMAN_TYPE_OTHER;
|
|
|
|
if (rshift > gshift && gshift > bshift) {
|
|
if (bshift == 0) {
|
|
type = PIXMAN_TYPE_ARGB;
|
|
} else {
|
|
#if PIXMAN_VERSION >= PIXMAN_VERSION_ENCODE(0, 21, 8)
|
|
type = PIXMAN_TYPE_RGBA;
|
|
#endif
|
|
}
|
|
} else if (rshift < gshift && gshift < bshift) {
|
|
if (rshift == 0) {
|
|
type = PIXMAN_TYPE_ABGR;
|
|
} else {
|
|
#if PIXMAN_VERSION >= PIXMAN_VERSION_ENCODE(0, 16, 0)
|
|
type = PIXMAN_TYPE_BGRA;
|
|
#endif
|
|
}
|
|
}
|
|
return type;
|
|
}
|
|
|
|
pixman_format_code_t qemu_pixman_get_format(PixelFormat *pf)
|
|
{
|
|
pixman_format_code_t format;
|
|
int type;
|
|
|
|
type = qemu_pixman_get_type(pf->rshift, pf->gshift, pf->bshift);
|
|
format = PIXMAN_FORMAT(pf->bits_per_pixel, type,
|
|
pf->abits, pf->rbits, pf->gbits, pf->bbits);
|
|
if (!pixman_format_supported_source(format)) {
|
|
return 0;
|
|
}
|
|
return format;
|
|
}
|
|
|
|
pixman_image_t *qemu_pixman_linebuf_create(pixman_format_code_t format,
|
|
int width)
|
|
{
|
|
pixman_image_t *image = pixman_image_create_bits(format, width, 1, NULL, 0);
|
|
assert(image != NULL);
|
|
return image;
|
|
}
|
|
|
|
void qemu_pixman_linebuf_fill(pixman_image_t *linebuf, pixman_image_t *fb,
|
|
int width, int x, int y)
|
|
{
|
|
pixman_image_composite(PIXMAN_OP_SRC, fb, NULL, linebuf,
|
|
x, y, 0, 0, 0, 0, width, 1);
|
|
}
|
|
|
|
pixman_image_t *qemu_pixman_mirror_create(pixman_format_code_t format,
|
|
pixman_image_t *image)
|
|
{
|
|
pixman_image_t *mirror;
|
|
|
|
mirror = pixman_image_create_bits(format,
|
|
pixman_image_get_width(image),
|
|
pixman_image_get_height(image),
|
|
NULL,
|
|
pixman_image_get_stride(image));
|
|
return mirror;
|
|
}
|
|
|
|
void qemu_pixman_image_unref(pixman_image_t *image)
|
|
{
|
|
if (image == NULL) {
|
|
return;
|
|
}
|
|
pixman_image_unref(image);
|
|
}
|