3 * Copyright © 2000 SuSE, Inc.
5 * Permission to use, copy, modify, distribute, and sell this software and its
6 * documentation for any purpose is hereby granted without fee, provided that
7 * the above copyright notice appear in all copies and that both that
8 * copyright notice and this permission notice appear in supporting
9 * documentation, and that the name of SuSE not be used in advertising or
10 * publicity pertaining to distribution of the software without specific,
11 * written prior permission. SuSE makes no representations about the
12 * suitability of this software for any purpose. It is provided "as is"
13 * without express or implied warranty.
15 * SuSE DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL SuSE
17 * BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
18 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
19 * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
20 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
22 * Author: Keith Packard, SuSE, Inc.
32 typedef struct _DirectFormat
*DirectFormatPtr
;
33 typedef struct _PictFormat
*PictFormatPtr
;
34 typedef struct _Picture
*PicturePtr
;
37 * While the protocol is generous in format support, the
38 * sample implementation allows only packed RGB and GBR
39 * representations for data to simplify software rendering,
41 #define PICT_FORMAT(bpp,type,a,r,g,b) PIXMAN_FORMAT(bpp, type, a, r, g, b)
44 * gray/color formats use a visual index instead of argb
46 #define PICT_VISFORMAT(bpp,type,vi) (((bpp) << 24) | \
50 #define PICT_FORMAT_BPP(f) PIXMAN_FORMAT_BPP(f)
51 #define PICT_FORMAT_TYPE(f) PIXMAN_FORMAT_TYPE(f)
52 #define PICT_FORMAT_A(f) PIXMAN_FORMAT_A(f)
53 #define PICT_FORMAT_R(f) PIXMAN_FORMAT_R(f)
54 #define PICT_FORMAT_G(f) PIXMAN_FORMAT_G(f)
55 #define PICT_FORMAT_B(f) PIXMAN_FORMAT_B(f)
56 #define PICT_FORMAT_RGB(f) PIXMAN_FORMAT_RGB(f)
57 #define PICT_FORMAT_VIS(f) PIXMAN_FORMAT_VIS(f)
59 #define PICT_TYPE_OTHER PIXMAN_TYPE_OTHER
60 #define PICT_TYPE_A PIXMAN_TYPE_A
61 #define PICT_TYPE_ARGB PIXMAN_TYPE_ARGB
62 #define PICT_TYPE_ABGR PIXMAN_TYPE_ABGR
63 #define PICT_TYPE_COLOR PIXMAN_TYPE_COLOR
64 #define PICT_TYPE_GRAY PIXMAN_TYPE_GRAY
65 #define PICT_TYPE_BGRA PIXMAN_TYPE_BGRA
67 #define PICT_FORMAT_COLOR(f) PIXMAN_FORMAT_COLOR(f)
70 typedef enum _PictFormatShort
{
71 PICT_a2r10g10b10
= PIXMAN_a2r10g10b10
,
72 PICT_x2r10g10b10
= PIXMAN_x2r10g10b10
,
73 PICT_a2b10g10r10
= PIXMAN_a2b10g10r10
,
74 PICT_x2b10g10r10
= PIXMAN_x2b10g10r10
,
76 PICT_a8r8g8b8
= PIXMAN_a8r8g8b8
,
77 PICT_x8r8g8b8
= PIXMAN_x8r8g8b8
,
78 PICT_a8b8g8r8
= PIXMAN_a8b8g8r8
,
79 PICT_x8b8g8r8
= PIXMAN_x8b8g8r8
,
80 PICT_b8g8r8a8
= PIXMAN_b8g8r8a8
,
81 PICT_b8g8r8x8
= PIXMAN_b8g8r8x8
,
84 PICT_r8g8b8
= PIXMAN_r8g8b8
,
85 PICT_b8g8r8
= PIXMAN_b8g8r8
,
88 PICT_r5g6b5
= PIXMAN_r5g6b5
,
89 PICT_b5g6r5
= PIXMAN_b5g6r5
,
91 PICT_a1r5g5b5
= PIXMAN_a1r5g5b5
,
92 PICT_x1r5g5b5
= PIXMAN_x1r5g5b5
,
93 PICT_a1b5g5r5
= PIXMAN_a1b5g5r5
,
94 PICT_x1b5g5r5
= PIXMAN_x1b5g5r5
,
95 PICT_a4r4g4b4
= PIXMAN_a4r4g4b4
,
96 PICT_x4r4g4b4
= PIXMAN_x4r4g4b4
,
97 PICT_a4b4g4r4
= PIXMAN_a4b4g4r4
,
98 PICT_x4b4g4r4
= PIXMAN_x4b4g4r4
,
102 PICT_r3g3b2
= PIXMAN_r3g3b2
,
103 PICT_b2g3r3
= PIXMAN_b2g3r3
,
104 PICT_a2r2g2b2
= PIXMAN_a2r2g2b2
,
105 PICT_a2b2g2r2
= PIXMAN_a2b2g2r2
,
110 PICT_x4a4
= PIXMAN_x4a4
,
112 PICT_x4c4
= PIXMAN_x4c4
,
113 PICT_x4g4
= PIXMAN_x4g4
,
117 PICT_r1g2b1
= PIXMAN_r1g2b1
,
118 PICT_b1g2r1
= PIXMAN_b1g2r1
,
119 PICT_a1r1g1b1
= PIXMAN_a1r1g1b1
,
120 PICT_a1b1g1r1
= PIXMAN_a1b1g1r1
,
132 * For dynamic indexed visuals (GrayScale and PseudoColor), these control the
133 * selection of colors allocated for drawing to Pictures. The default
134 * policy depends on the size of the colormap:
136 * Size Default Policy
137 * ----------------------------
140 * 256 PolicyColor (only on PseudoColor)
142 * The actual allocation code lives in miindex.c, and so is
143 * austensibly server dependent, but that code does:
145 * PolicyMono Allocate no additional colors, use black and white
146 * PolicyGray Allocate 13 gray levels (11 cells used)
147 * PolicyColor Allocate a 4x4x4 cube and 13 gray levels (71 cells used)
148 * PolicyAll Allocate as big a cube as possible, fill with gray (all)
150 * Here's a picture to help understand how many colors are
151 * actually allocated (this is just the gray ramp):
154 * all 0000 1555 2aaa 4000 5555 6aaa 8000 9555 aaaa bfff d555 eaaa ffff
157 * extra 1555 2aaa 4000 6aaa 8000 9555 bfff d555 eaaa
159 * The default colormap supplies two gray levels (black/white), the
160 * 4x4x4 cube allocates another two and nine more are allocated to fill
161 * in the 13 levels. When the 4x4x4 cube is not allocated, a total of
162 * 11 cells are allocated.
165 #define PictureCmapPolicyInvalid -1
166 #define PictureCmapPolicyDefault 0
167 #define PictureCmapPolicyMono 1
168 #define PictureCmapPolicyGray 2
169 #define PictureCmapPolicyColor 3
170 #define PictureCmapPolicyAll 4
172 extern _X_EXPORT
int PictureCmapPolicy
;
174 extern _X_EXPORT
int PictureParseCmapPolicy(const char *name
);
176 extern _X_EXPORT
int RenderErrBase
;
178 /* Fixed point updates from Carl Worth, USC, Information Sciences Institute */
180 typedef pixman_fixed_32_32_t xFixed_32_32
;
182 typedef pixman_fixed_48_16_t xFixed_48_16
;
184 #define MAX_FIXED_48_16 pixman_max_fixed_48_16
185 #define MIN_FIXED_48_16 pixman_min_fixed_48_16
187 typedef pixman_fixed_1_31_t xFixed_1_31
;
188 typedef pixman_fixed_1_16_t xFixed_1_16
;
189 typedef pixman_fixed_16_16_t xFixed_16_16
;
192 * An unadorned "xFixed" is the same as xFixed_16_16,
193 * (since it's quite common in the code)
195 typedef pixman_fixed_t xFixed
;
197 #define XFIXED_BITS 16
199 #define xFixedToInt(f) pixman_fixed_to_int(f)
200 #define IntToxFixed(i) pixman_int_to_fixed(i)
201 #define xFixedE pixman_fixed_e
202 #define xFixed1 pixman_fixed_1
203 #define xFixed1MinusE pixman_fixed_1_minus_e
204 #define xFixedFrac(f) pixman_fixed_frac(f)
205 #define xFixedFloor(f) pixman_fixed_floor(f)
206 #define xFixedCeil(f) pixman_fixed_ceil(f)
208 #define xFixedFraction(f) pixman_fixed_fraction(f)
209 #define xFixedMod2(f) pixman_fixed_mod2(f)
211 /* whether 't' is a well defined not obviously empty trapezoid */
212 #define xTrapezoidValid(t) ((t)->left.p1.y != (t)->left.p2.y && \
213 (t)->right.p1.y != (t)->right.p2.y && \
214 (int) ((t)->bottom - (t)->top) > 0)
217 * Standard NTSC luminance conversions:
219 * y = r * 0.299 + g * 0.587 + b * 0.114
221 * Approximate this for a bit more speed:
223 * y = (r * 153 + g * 301 + b * 58) / 512
225 * This gives 17 bits of luminance; to get 15 bits, lop the low two
228 #define CvtR8G8B8toY15(s) (((((s) >> 16) & 0xff) * 153 + \
229 (((s) >> 8) & 0xff) * 301 + \
230 (((s) ) & 0xff) * 58) >> 2)
232 #endif /* _PICTURE_H_ */