diff options
Diffstat (limited to 'ui/qemu-pixman.c')
| -rw-r--r-- | ui/qemu-pixman.c | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/ui/qemu-pixman.c b/ui/qemu-pixman.c index 254bd8ce10..30c7fdd011 100644 --- a/ui/qemu-pixman.c +++ b/ui/qemu-pixman.c @@ -6,6 +6,87 @@ #include "qemu-common.h" #include "ui/console.h" +PixelFormat qemu_pixelformat_from_pixman(pixman_format_code_t format) +{ + PixelFormat pf; + uint8_t bpp; + + bpp = pf.bits_per_pixel = PIXMAN_FORMAT_BPP(format); + pf.bytes_per_pixel = PIXMAN_FORMAT_BPP(format) / 8; + pf.depth = PIXMAN_FORMAT_DEPTH(format); + + pf.abits = PIXMAN_FORMAT_A(format); + pf.rbits = PIXMAN_FORMAT_R(format); + pf.gbits = PIXMAN_FORMAT_G(format); + pf.bbits = PIXMAN_FORMAT_B(format); + + switch (PIXMAN_FORMAT_TYPE(format)) { + case PIXMAN_TYPE_ARGB: + pf.ashift = pf.bbits + pf.gbits + pf.rbits; + pf.rshift = pf.bbits + pf.gbits; + pf.gshift = pf.bbits; + pf.bshift = 0; + break; + case PIXMAN_TYPE_ABGR: + pf.ashift = pf.rbits + pf.gbits + pf.bbits; + pf.bshift = pf.rbits + pf.gbits; + pf.gshift = pf.rbits; + pf.rshift = 0; + break; + case PIXMAN_TYPE_BGRA: + pf.bshift = bpp - pf.bbits; + pf.gshift = bpp - (pf.bbits + pf.gbits); + pf.rshift = bpp - (pf.bbits + pf.gbits + pf.rbits); + pf.ashift = 0; + break; + case PIXMAN_TYPE_RGBA: + pf.rshift = bpp - pf.rbits; + pf.gshift = bpp - (pf.rbits + pf.gbits); + pf.bshift = bpp - (pf.rbits + pf.gbits + pf.bbits); + pf.ashift = 0; + break; + default: + g_assert_not_reached(); + break; + } + + pf.amax = (1 << pf.abits) - 1; + pf.rmax = (1 << pf.rbits) - 1; + pf.gmax = (1 << pf.gbits) - 1; + pf.bmax = (1 << pf.bbits) - 1; + pf.amask = pf.amax << pf.ashift; + pf.rmask = pf.rmax << pf.rshift; + pf.gmask = pf.gmax << pf.gshift; + pf.bmask = pf.bmax << pf.bshift; + + return pf; +} + +pixman_format_code_t qemu_default_pixman_format(int bpp, bool native_endian) +{ + if (native_endian) { + switch (bpp) { + case 15: + return PIXMAN_x1r5g5b5; + case 16: + return PIXMAN_r5g6b5; + case 24: + return PIXMAN_r8g8b8; + case 32: + return PIXMAN_x8r8g8b8; + } + } else { + switch (bpp) { + case 24: + return PIXMAN_b8g8r8; + case 32: + return PIXMAN_b8g8r8a8; + break; + } + } + g_assert_not_reached(); +} + int qemu_pixman_get_type(int rshift, int gshift, int bshift) { int type = PIXMAN_TYPE_OTHER; @@ -52,6 +133,7 @@ pixman_image_t *qemu_pixman_linebuf_create(pixman_format_code_t format, return image; } +/* fill linebuf from framebuffer */ void qemu_pixman_linebuf_fill(pixman_image_t *linebuf, pixman_image_t *fb, int width, int x, int y) { @@ -59,6 +141,14 @@ void qemu_pixman_linebuf_fill(pixman_image_t *linebuf, pixman_image_t *fb, x, y, 0, 0, 0, 0, width, 1); } +/* copy linebuf to framebuffer */ +void qemu_pixman_linebuf_copy(pixman_image_t *fb, int width, int x, int y, + pixman_image_t *linebuf) +{ + pixman_image_composite(PIXMAN_OP_SRC, linebuf, NULL, fb, + 0, 0, 0, 0, x, y, width, 1); +} + pixman_image_t *qemu_pixman_mirror_create(pixman_format_code_t format, pixman_image_t *image) { |