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-rw-r--r--ui/qemu-pixman.c80
1 files changed, 80 insertions, 0 deletions
diff --git a/ui/qemu-pixman.c b/ui/qemu-pixman.c
new file mode 100644
index 0000000000..609335ab11
--- /dev/null
+++ b/ui/qemu-pixman.c
@@ -0,0 +1,80 @@
+/*
+ * 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 "ui/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);
+}