1 /* 2 * This work is licensed under the terms of the GNU GPL, version 2 or later. 3 * See the COPYING file in the top-level directory. 4 */ 5 6 #include "ui/qemu-pixman.h" 7 8 int qemu_pixman_get_type(int rshift, int gshift, int bshift) 9 { 10 int type = PIXMAN_TYPE_OTHER; 11 12 if (rshift > gshift && gshift > bshift) { 13 if (bshift == 0) { 14 type = PIXMAN_TYPE_ARGB; 15 } else { 16 #if PIXMAN_VERSION >= PIXMAN_VERSION_ENCODE(0, 21, 8) 17 type = PIXMAN_TYPE_RGBA; 18 #endif 19 } 20 } else if (rshift < gshift && gshift < bshift) { 21 if (rshift == 0) { 22 type = PIXMAN_TYPE_ABGR; 23 } else { 24 #if PIXMAN_VERSION >= PIXMAN_VERSION_ENCODE(0, 16, 0) 25 type = PIXMAN_TYPE_BGRA; 26 #endif 27 } 28 } 29 return type; 30 } 31 32 pixman_format_code_t qemu_pixman_get_format(PixelFormat *pf) 33 { 34 pixman_format_code_t format; 35 int type; 36 37 type = qemu_pixman_get_type(pf->rshift, pf->gshift, pf->bshift); 38 format = PIXMAN_FORMAT(pf->bits_per_pixel, type, 39 pf->abits, pf->rbits, pf->gbits, pf->bbits); 40 if (!pixman_format_supported_source(format)) { 41 return 0; 42 } 43 return format; 44 } 45 46 pixman_image_t *qemu_pixman_linebuf_create(pixman_format_code_t format, 47 int width) 48 { 49 pixman_image_t *image = pixman_image_create_bits(format, width, 1, NULL, 0); 50 assert(image != NULL); 51 return image; 52 } 53 54 void qemu_pixman_linebuf_fill(pixman_image_t *linebuf, pixman_image_t *fb, 55 int width, int x, int y) 56 { 57 pixman_image_composite(PIXMAN_OP_SRC, fb, NULL, linebuf, 58 x, y, 0, 0, 0, 0, width, 1); 59 } 60 61 pixman_image_t *qemu_pixman_mirror_create(pixman_format_code_t format, 62 pixman_image_t *image) 63 { 64 pixman_image_t *mirror; 65 66 mirror = pixman_image_create_bits(format, 67 pixman_image_get_width(image), 68 pixman_image_get_height(image), 69 NULL, 70 pixman_image_get_stride(image)); 71 return mirror; 72 } 73 74 void qemu_pixman_image_unref(pixman_image_t *image) 75 { 76 if (image == NULL) { 77 return; 78 } 79 pixman_image_unref(image); 80 } 81