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.
6 #include "qemu/osdep.h"
7 #include "qemu-common.h"
8 #include "ui/console.h"
9 #include "standard-headers/drm/drm_fourcc.h"
11 PixelFormat qemu_pixelformat_from_pixman(pixman_format_code_t format)
16 bpp = pf.bits_per_pixel = PIXMAN_FORMAT_BPP(format);
17 pf.bytes_per_pixel = PIXMAN_FORMAT_BPP(format) / 8;
18 pf.depth = PIXMAN_FORMAT_DEPTH(format);
20 pf.abits = PIXMAN_FORMAT_A(format);
21 pf.rbits = PIXMAN_FORMAT_R(format);
22 pf.gbits = PIXMAN_FORMAT_G(format);
23 pf.bbits = PIXMAN_FORMAT_B(format);
25 switch (PIXMAN_FORMAT_TYPE(format)) {
26 case PIXMAN_TYPE_ARGB:
27 pf.ashift = pf.bbits + pf.gbits + pf.rbits;
28 pf.rshift = pf.bbits + pf.gbits;
32 case PIXMAN_TYPE_ABGR:
33 pf.ashift = pf.rbits + pf.gbits + pf.bbits;
34 pf.bshift = pf.rbits + pf.gbits;
38 case PIXMAN_TYPE_BGRA:
39 pf.bshift = bpp - pf.bbits;
40 pf.gshift = bpp - (pf.bbits + pf.gbits);
41 pf.rshift = bpp - (pf.bbits + pf.gbits + pf.rbits);
44 case PIXMAN_TYPE_RGBA:
45 pf.rshift = bpp - pf.rbits;
46 pf.gshift = bpp - (pf.rbits + pf.gbits);
47 pf.bshift = bpp - (pf.rbits + pf.gbits + pf.bbits);
51 g_assert_not_reached();
55 pf.amax = (1 << pf.abits) - 1;
56 pf.rmax = (1 << pf.rbits) - 1;
57 pf.gmax = (1 << pf.gbits) - 1;
58 pf.bmax = (1 << pf.bbits) - 1;
59 pf.amask = pf.amax << pf.ashift;
60 pf.rmask = pf.rmax << pf.rshift;
61 pf.gmask = pf.gmax << pf.gshift;
62 pf.bmask = pf.bmax << pf.bshift;
67 pixman_format_code_t qemu_default_pixman_format(int bpp, bool native_endian)
72 return PIXMAN_x1r5g5b5;
78 return PIXMAN_x8r8g8b8;
85 return PIXMAN_b8g8r8x8;
92 /* Note: drm is little endian, pixman is native endian */
93 pixman_format_code_t qemu_drm_format_to_pixman(uint32_t drm_format)
97 pixman_format_code_t pixman;
99 { DRM_FORMAT_RGB888, PIXMAN_LE_r8g8b8 },
100 { DRM_FORMAT_ARGB8888, PIXMAN_LE_a8r8g8b8 },
101 { DRM_FORMAT_XRGB8888, PIXMAN_LE_x8r8g8b8 }
105 for (i = 0; i < ARRAY_SIZE(map); i++) {
106 if (drm_format == map[i].drm_format) {
107 return map[i].pixman;
113 int qemu_pixman_get_type(int rshift, int gshift, int bshift)
115 int type = PIXMAN_TYPE_OTHER;
117 if (rshift > gshift && gshift > bshift) {
119 type = PIXMAN_TYPE_ARGB;
121 type = PIXMAN_TYPE_RGBA;
123 } else if (rshift < gshift && gshift < bshift) {
125 type = PIXMAN_TYPE_ABGR;
127 type = PIXMAN_TYPE_BGRA;
133 pixman_format_code_t qemu_pixman_get_format(PixelFormat *pf)
135 pixman_format_code_t format;
138 type = qemu_pixman_get_type(pf->rshift, pf->gshift, pf->bshift);
139 format = PIXMAN_FORMAT(pf->bits_per_pixel, type,
140 pf->abits, pf->rbits, pf->gbits, pf->bbits);
141 if (!pixman_format_supported_source(format)) {
148 * Return true for known-good pixman conversions.
150 * UIs using pixman for format conversion can hook this into
151 * DisplayChangeListenerOps->dpy_gfx_check_format
153 bool qemu_pixman_check_format(DisplayChangeListener *dcl,
154 pixman_format_code_t format)
158 case PIXMAN_x8r8g8b8:
159 case PIXMAN_a8r8g8b8:
160 case PIXMAN_b8g8r8x8:
161 case PIXMAN_b8g8r8a8:
166 case PIXMAN_x1r5g5b5:
174 pixman_image_t *qemu_pixman_linebuf_create(pixman_format_code_t format,
177 pixman_image_t *image = pixman_image_create_bits(format, width, 1, NULL, 0);
178 assert(image != NULL);
182 /* fill linebuf from framebuffer */
183 void qemu_pixman_linebuf_fill(pixman_image_t *linebuf, pixman_image_t *fb,
184 int width, int x, int y)
186 pixman_image_composite(PIXMAN_OP_SRC, fb, NULL, linebuf,
187 x, y, 0, 0, 0, 0, width, 1);
190 /* copy linebuf to framebuffer */
191 void qemu_pixman_linebuf_copy(pixman_image_t *fb, int width, int x, int y,
192 pixman_image_t *linebuf)
194 pixman_image_composite(PIXMAN_OP_SRC, linebuf, NULL, fb,
195 0, 0, 0, 0, x, y, width, 1);
198 pixman_image_t *qemu_pixman_mirror_create(pixman_format_code_t format,
199 pixman_image_t *image)
201 return pixman_image_create_bits(format,
202 pixman_image_get_width(image),
203 pixman_image_get_height(image),
205 pixman_image_get_stride(image));
208 void qemu_pixman_image_unref(pixman_image_t *image)
213 pixman_image_unref(image);
216 pixman_color_t qemu_pixman_color(PixelFormat *pf, uint32_t color)
220 c.red = ((color & pf->rmask) >> pf->rshift) << (16 - pf->rbits);
221 c.green = ((color & pf->gmask) >> pf->gshift) << (16 - pf->gbits);
222 c.blue = ((color & pf->bmask) >> pf->bshift) << (16 - pf->bbits);
223 c.alpha = ((color & pf->amask) >> pf->ashift) << (16 - pf->abits);
227 pixman_image_t *qemu_pixman_glyph_from_vgafont(int height, const uint8_t *font,
230 pixman_image_t *glyph;
235 glyph = pixman_image_create_bits(PIXMAN_a8, 8, height,
237 data = (uint8_t *)pixman_image_get_data(glyph);
240 for (y = 0; y < height; y++, font++) {
241 for (x = 0; x < 8; x++, data++) {
242 bit = (*font) & (1 << (7-x));
243 *data = bit ? 0xff : 0x00;
249 void qemu_pixman_glyph_render(pixman_image_t *glyph,
250 pixman_image_t *surface,
251 pixman_color_t *fgcol,
252 pixman_color_t *bgcol,
253 int x, int y, int cw, int ch)
255 pixman_image_t *ifg = pixman_image_create_solid_fill(fgcol);
256 pixman_image_t *ibg = pixman_image_create_solid_fill(bgcol);
258 pixman_image_composite(PIXMAN_OP_SRC, ibg, NULL, surface,
262 pixman_image_composite(PIXMAN_OP_OVER, ifg, glyph, surface,
266 pixman_image_unref(ifg);
267 pixman_image_unref(ibg);