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 "qemu/osdep.h" 7 #include "qapi/error.h" 8 #include "ui/console.h" 9 #include "standard-headers/drm/drm_fourcc.h" 10 #include "trace.h" 11 12 PixelFormat qemu_pixelformat_from_pixman(pixman_format_code_t format) 13 { 14 PixelFormat pf; 15 uint8_t bpp; 16 17 bpp = pf.bits_per_pixel = PIXMAN_FORMAT_BPP(format); 18 pf.bytes_per_pixel = PIXMAN_FORMAT_BPP(format) / 8; 19 pf.depth = PIXMAN_FORMAT_DEPTH(format); 20 21 pf.abits = PIXMAN_FORMAT_A(format); 22 pf.rbits = PIXMAN_FORMAT_R(format); 23 pf.gbits = PIXMAN_FORMAT_G(format); 24 pf.bbits = PIXMAN_FORMAT_B(format); 25 26 switch (PIXMAN_FORMAT_TYPE(format)) { 27 case PIXMAN_TYPE_ARGB: 28 pf.ashift = pf.bbits + pf.gbits + pf.rbits; 29 pf.rshift = pf.bbits + pf.gbits; 30 pf.gshift = pf.bbits; 31 pf.bshift = 0; 32 break; 33 case PIXMAN_TYPE_ABGR: 34 pf.ashift = pf.rbits + pf.gbits + pf.bbits; 35 pf.bshift = pf.rbits + pf.gbits; 36 pf.gshift = pf.rbits; 37 pf.rshift = 0; 38 break; 39 case PIXMAN_TYPE_BGRA: 40 pf.bshift = bpp - pf.bbits; 41 pf.gshift = bpp - (pf.bbits + pf.gbits); 42 pf.rshift = bpp - (pf.bbits + pf.gbits + pf.rbits); 43 pf.ashift = 0; 44 break; 45 case PIXMAN_TYPE_RGBA: 46 pf.rshift = bpp - pf.rbits; 47 pf.gshift = bpp - (pf.rbits + pf.gbits); 48 pf.bshift = bpp - (pf.rbits + pf.gbits + pf.bbits); 49 pf.ashift = 0; 50 break; 51 default: 52 g_assert_not_reached(); 53 break; 54 } 55 56 pf.amax = (1 << pf.abits) - 1; 57 pf.rmax = (1 << pf.rbits) - 1; 58 pf.gmax = (1 << pf.gbits) - 1; 59 pf.bmax = (1 << pf.bbits) - 1; 60 pf.amask = pf.amax << pf.ashift; 61 pf.rmask = pf.rmax << pf.rshift; 62 pf.gmask = pf.gmax << pf.gshift; 63 pf.bmask = pf.bmax << pf.bshift; 64 65 return pf; 66 } 67 68 pixman_format_code_t qemu_default_pixman_format(int bpp, bool native_endian) 69 { 70 if (native_endian) { 71 switch (bpp) { 72 case 15: 73 return PIXMAN_x1r5g5b5; 74 case 16: 75 return PIXMAN_r5g6b5; 76 case 24: 77 return PIXMAN_r8g8b8; 78 case 32: 79 return PIXMAN_x8r8g8b8; 80 } 81 } else { 82 switch (bpp) { 83 case 24: 84 return PIXMAN_b8g8r8; 85 case 32: 86 return PIXMAN_b8g8r8x8; 87 break; 88 } 89 } 90 return 0; 91 } 92 93 /* Note: drm is little endian, pixman is native endian */ 94 static const struct { 95 uint32_t drm_format; 96 pixman_format_code_t pixman_format; 97 } drm_format_pixman_map[] = { 98 { DRM_FORMAT_RGB888, PIXMAN_LE_r8g8b8 }, 99 { DRM_FORMAT_ARGB8888, PIXMAN_LE_a8r8g8b8 }, 100 { DRM_FORMAT_XRGB8888, PIXMAN_LE_x8r8g8b8 }, 101 { DRM_FORMAT_XBGR8888, PIXMAN_LE_x8b8g8r8 }, 102 { DRM_FORMAT_ABGR8888, PIXMAN_LE_a8b8g8r8 }, 103 }; 104 105 pixman_format_code_t qemu_drm_format_to_pixman(uint32_t drm_format) 106 { 107 int i; 108 109 for (i = 0; i < ARRAY_SIZE(drm_format_pixman_map); i++) { 110 if (drm_format == drm_format_pixman_map[i].drm_format) { 111 return drm_format_pixman_map[i].pixman_format; 112 } 113 } 114 return 0; 115 } 116 117 uint32_t qemu_pixman_to_drm_format(pixman_format_code_t pixman_format) 118 { 119 int i; 120 121 for (i = 0; i < ARRAY_SIZE(drm_format_pixman_map); i++) { 122 if (pixman_format == drm_format_pixman_map[i].pixman_format) { 123 return drm_format_pixman_map[i].drm_format; 124 } 125 } 126 return 0; 127 } 128 129 int qemu_pixman_get_type(int rshift, int gshift, int bshift) 130 { 131 int type = PIXMAN_TYPE_OTHER; 132 133 if (rshift > gshift && gshift > bshift) { 134 if (bshift == 0) { 135 type = PIXMAN_TYPE_ARGB; 136 } else { 137 type = PIXMAN_TYPE_RGBA; 138 } 139 } else if (rshift < gshift && gshift < bshift) { 140 if (rshift == 0) { 141 type = PIXMAN_TYPE_ABGR; 142 } else { 143 type = PIXMAN_TYPE_BGRA; 144 } 145 } 146 return type; 147 } 148 149 #ifdef CONFIG_PIXMAN 150 pixman_format_code_t qemu_pixman_get_format(PixelFormat *pf) 151 { 152 pixman_format_code_t format; 153 int type; 154 155 type = qemu_pixman_get_type(pf->rshift, pf->gshift, pf->bshift); 156 format = PIXMAN_FORMAT(pf->bits_per_pixel, type, 157 pf->abits, pf->rbits, pf->gbits, pf->bbits); 158 if (!pixman_format_supported_source(format)) { 159 return 0; 160 } 161 return format; 162 } 163 #endif 164 165 /* 166 * Return true for known-good pixman conversions. 167 * 168 * UIs using pixman for format conversion can hook this into 169 * DisplayChangeListenerOps->dpy_gfx_check_format 170 */ 171 bool qemu_pixman_check_format(DisplayChangeListener *dcl, 172 pixman_format_code_t format) 173 { 174 switch (format) { 175 /* 32 bpp */ 176 case PIXMAN_x8r8g8b8: 177 case PIXMAN_a8r8g8b8: 178 case PIXMAN_b8g8r8x8: 179 case PIXMAN_b8g8r8a8: 180 /* 24 bpp */ 181 case PIXMAN_r8g8b8: 182 case PIXMAN_b8g8r8: 183 /* 16 bpp */ 184 case PIXMAN_x1r5g5b5: 185 case PIXMAN_r5g6b5: 186 return true; 187 default: 188 return false; 189 } 190 } 191 192 #ifdef CONFIG_PIXMAN 193 pixman_image_t *qemu_pixman_linebuf_create(pixman_format_code_t format, 194 int width) 195 { 196 pixman_image_t *image = pixman_image_create_bits(format, width, 1, NULL, 0); 197 assert(image != NULL); 198 return image; 199 } 200 201 /* fill linebuf from framebuffer */ 202 void qemu_pixman_linebuf_fill(pixman_image_t *linebuf, pixman_image_t *fb, 203 int width, int x, int y) 204 { 205 pixman_image_composite(PIXMAN_OP_SRC, fb, NULL, linebuf, 206 x, y, 0, 0, 0, 0, width, 1); 207 } 208 209 pixman_image_t *qemu_pixman_mirror_create(pixman_format_code_t format, 210 pixman_image_t *image) 211 { 212 return pixman_image_create_bits(format, 213 pixman_image_get_width(image), 214 pixman_image_get_height(image), 215 NULL, 216 pixman_image_get_stride(image)); 217 } 218 #endif 219 220 void qemu_pixman_image_unref(pixman_image_t *image) 221 { 222 if (image == NULL) { 223 return; 224 } 225 pixman_image_unref(image); 226 } 227 228 #ifdef CONFIG_PIXMAN 229 pixman_image_t *qemu_pixman_glyph_from_vgafont(int height, const uint8_t *font, 230 unsigned int ch) 231 { 232 pixman_image_t *glyph; 233 uint8_t *data; 234 bool bit; 235 int x, y; 236 237 glyph = pixman_image_create_bits(PIXMAN_a8, 8, height, 238 NULL, 0); 239 data = (uint8_t *)pixman_image_get_data(glyph); 240 241 font += height * ch; 242 for (y = 0; y < height; y++, font++) { 243 for (x = 0; x < 8; x++, data++) { 244 bit = (*font) & (1 << (7-x)); 245 *data = bit ? 0xff : 0x00; 246 } 247 } 248 return glyph; 249 } 250 251 void qemu_pixman_glyph_render(pixman_image_t *glyph, 252 pixman_image_t *surface, 253 pixman_color_t *fgcol, 254 pixman_color_t *bgcol, 255 int x, int y, int cw, int ch) 256 { 257 pixman_image_t *ifg = pixman_image_create_solid_fill(fgcol); 258 pixman_image_t *ibg = pixman_image_create_solid_fill(bgcol); 259 260 pixman_image_composite(PIXMAN_OP_SRC, ibg, NULL, surface, 261 0, 0, 0, 0, 262 cw * x, ch * y, 263 cw, ch); 264 pixman_image_composite(PIXMAN_OP_OVER, ifg, glyph, surface, 265 0, 0, 0, 0, 266 cw * x, ch * y, 267 cw, ch); 268 pixman_image_unref(ifg); 269 pixman_image_unref(ibg); 270 } 271 #endif /* CONFIG_PIXMAN */ 272 273 #ifdef WIN32 274 void 275 qemu_pixman_win32_image_destroy(pixman_image_t *image, void *data) 276 { 277 HANDLE handle = data; 278 279 qemu_win32_map_free( 280 pixman_image_get_data(image), 281 handle, 282 &error_warn 283 ); 284 } 285 #endif 286