diff options
Diffstat (limited to 'xorg-server/render/picture.h')
| -rw-r--r-- | xorg-server/render/picture.h | 222 |
1 files changed, 222 insertions, 0 deletions
diff --git a/xorg-server/render/picture.h b/xorg-server/render/picture.h new file mode 100644 index 000000000..045b29944 --- /dev/null +++ b/xorg-server/render/picture.h @@ -0,0 +1,222 @@ +/* + * + * Copyright © 2000 SuSE, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and its + * documentation for any purpose is hereby granted without fee, provided that + * the above copyright notice appear in all copies and that both that + * copyright notice and this permission notice appear in supporting + * documentation, and that the name of SuSE not be used in advertising or + * publicity pertaining to distribution of the software without specific, + * written prior permission. SuSE makes no representations about the + * suitability of this software for any purpose. It is provided "as is" + * without express or implied warranty. + * + * SuSE DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL SuSE + * BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN + * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Keith Packard, SuSE, Inc. + */ + +#ifndef _PICTURE_H_ +#define _PICTURE_H_ + +#include <pixman.h> + +typedef struct _DirectFormat *DirectFormatPtr; +typedef struct _PictFormat *PictFormatPtr; +typedef struct _Picture *PicturePtr; + +/* + * While the protocol is generous in format support, the + * sample implementation allows only packed RGB and GBR + * representations for data to simplify software rendering, + */ +#define PICT_FORMAT(bpp,type,a,r,g,b) PIXMAN_FORMAT(bpp, type, a, r, g, b) + +/* + * gray/color formats use a visual index instead of argb + */ +#define PICT_VISFORMAT(bpp,type,vi) (((bpp) << 24) | \ + ((type) << 16) | \ + ((vi))) + +#define PICT_FORMAT_BPP(f) PIXMAN_FORMAT_BPP(f) +#define PICT_FORMAT_TYPE(f) PIXMAN_FORMAT_TYPE(f) +#define PICT_FORMAT_A(f) PIXMAN_FORMAT_A(f) +#define PICT_FORMAT_R(f) PIXMAN_FORMAT_R(f) +#define PICT_FORMAT_G(f) PIXMAN_FORMAT_G(f) +#define PICT_FORMAT_B(f) PIXMAN_FORMAT_B(f) +#define PICT_FORMAT_RGB(f) PIXMAN_FORMAT_RGB(f) +#define PICT_FORMAT_VIS(f) PIXMAN_FORMAT_VIS(f) + +#define PICT_TYPE_OTHER PIXMAN_TYPE_OTHER +#define PICT_TYPE_A PIXMAN_TYPE_A +#define PICT_TYPE_ARGB PIXMAN_TYPE_ARGB +#define PICT_TYPE_ABGR PIXMAN_TYPE_ABGR +#define PICT_TYPE_COLOR PIXMAN_TYPE_COLOR +#define PICT_TYPE_GRAY PIXMAN_TYPE_GRAY + +#define PICT_FORMAT_COLOR(f) PIXMAN_FORMAT_COLOR(f) + +/* 32bpp formats */ +typedef enum _PictFormatShort { + PICT_a8r8g8b8 = PIXMAN_a8r8g8b8, + PICT_x8r8g8b8 = PIXMAN_x8r8g8b8, + PICT_a8b8g8r8 = PIXMAN_a8b8g8r8, + PICT_x8b8g8r8 = PIXMAN_x8b8g8r8, + +/* 24bpp formats */ + PICT_r8g8b8 = PIXMAN_r8g8b8, + PICT_b8g8r8 = PIXMAN_b8g8r8, + +/* 16bpp formats */ + PICT_r5g6b5 = PIXMAN_r5g6b5, + PICT_b5g6r5 = PIXMAN_b5g6r5, + + PICT_a1r5g5b5 = PIXMAN_a1r5g5b5, + PICT_x1r5g5b5 = PIXMAN_x1r5g5b5, + PICT_a1b5g5r5 = PIXMAN_a1b5g5r5, + PICT_x1b5g5r5 = PIXMAN_x1b5g5r5, + PICT_a4r4g4b4 = PIXMAN_a4r4g4b4, + PICT_x4r4g4b4 = PIXMAN_x4r4g4b4, + PICT_a4b4g4r4 = PIXMAN_a4b4g4r4, + PICT_x4b4g4r4 = PIXMAN_x4b4g4r4, + +/* 8bpp formats */ + PICT_a8 = PIXMAN_a8, + PICT_r3g3b2 = PIXMAN_r3g3b2, + PICT_b2g3r3 = PIXMAN_b2g3r3, + PICT_a2r2g2b2 = PIXMAN_a2r2g2b2, + PICT_a2b2g2r2 = PIXMAN_a2b2g2r2, + + PICT_c8 = PIXMAN_c8, + PICT_g8 = PIXMAN_g8, + + PICT_x4a4 = PIXMAN_x4a4, + + PICT_x4c4 = PIXMAN_x4c4, + PICT_x4g4 = PIXMAN_x4g4, + +/* 4bpp formats */ + PICT_a4 = PIXMAN_a4, + PICT_r1g2b1 = PIXMAN_r1g2b1, + PICT_b1g2r1 = PIXMAN_b1g2r1, + PICT_a1r1g1b1 = PIXMAN_a1r1g1b1, + PICT_a1b1g1r1 = PIXMAN_a1b1g1r1, + + PICT_c4 = PIXMAN_c4, + PICT_g4 = PIXMAN_g4, + +/* 1bpp formats */ + PICT_a1 = PIXMAN_a1, + + PICT_g1 = PIXMAN_g1 +} PictFormatShort; + +/* + * For dynamic indexed visuals (GrayScale and PseudoColor), these control the + * selection of colors allocated for drawing to Pictures. The default + * policy depends on the size of the colormap: + * + * Size Default Policy + * ---------------------------- + * < 64 PolicyMono + * < 256 PolicyGray + * 256 PolicyColor (only on PseudoColor) + * + * The actual allocation code lives in miindex.c, and so is + * austensibly server dependent, but that code does: + * + * PolicyMono Allocate no additional colors, use black and white + * PolicyGray Allocate 13 gray levels (11 cells used) + * PolicyColor Allocate a 4x4x4 cube and 13 gray levels (71 cells used) + * PolicyAll Allocate as big a cube as possible, fill with gray (all) + * + * Here's a picture to help understand how many colors are + * actually allocated (this is just the gray ramp): + * + * gray level + * all 0000 1555 2aaa 4000 5555 6aaa 8000 9555 aaaa bfff d555 eaaa ffff + * b/w 0000 ffff + * 4x4x4 5555 aaaa + * extra 1555 2aaa 4000 6aaa 8000 9555 bfff d555 eaaa + * + * The default colormap supplies two gray levels (black/white), the + * 4x4x4 cube allocates another two and nine more are allocated to fill + * in the 13 levels. When the 4x4x4 cube is not allocated, a total of + * 11 cells are allocated. + */ + +#define PictureCmapPolicyInvalid -1 +#define PictureCmapPolicyDefault 0 +#define PictureCmapPolicyMono 1 +#define PictureCmapPolicyGray 2 +#define PictureCmapPolicyColor 3 +#define PictureCmapPolicyAll 4 + +extern int PictureCmapPolicy; + +int PictureParseCmapPolicy (const char *name); + +extern int RenderErrBase; +extern DevPrivateKey RenderClientPrivateKey; + +/* Fixed point updates from Carl Worth, USC, Information Sciences Institute */ + +typedef pixman_fixed_32_32_t xFixed_32_32; + +typedef pixman_fixed_48_16_t xFixed_48_16; + +#define MAX_FIXED_48_16 pixman_max_fixed_48_16 +#define MIN_FIXED_48_16 pixman_min_fixed_48_16 + +typedef pixman_fixed_1_31_t xFixed_1_31; +typedef pixman_fixed_1_16_t xFixed_1_16; +typedef pixman_fixed_16_16_t xFixed_16_16; + +/* + * An unadorned "xFixed" is the same as xFixed_16_16, + * (since it's quite common in the code) + */ +typedef pixman_fixed_t xFixed; +#define XFIXED_BITS 16 + +#define xFixedToInt(f) pixman_fixed_to_int(f) +#define IntToxFixed(i) pixman_int_to_fixed(i) +#define xFixedE pixman_fixed_e +#define xFixed1 pixman_fixed_1 +#define xFixed1MinusE pixman_fixed_1_minus_e +#define xFixedFrac(f) pixman_fixed_frac(f) +#define xFixedFloor(f) pixman_fixed_floor(f) +#define xFixedCeil(f) pixman_fixed_ceil(f) + +#define xFixedFraction(f) pixman_fixed_fraction(f) +#define xFixedMod2(f) pixman_fixed_mod2(f) + +/* whether 't' is a well defined not obviously empty trapezoid */ +#define xTrapezoidValid(t) ((t)->left.p1.y != (t)->left.p2.y && \ + (t)->right.p1.y != (t)->right.p2.y && \ + (int) ((t)->bottom - (t)->top) > 0) + +/* + * Standard NTSC luminance conversions: + * + * y = r * 0.299 + g * 0.587 + b * 0.114 + * + * Approximate this for a bit more speed: + * + * y = (r * 153 + g * 301 + b * 58) / 512 + * + * This gives 17 bits of luminance; to get 15 bits, lop the low two + */ + +#define CvtR8G8B8toY15(s) (((((s) >> 16) & 0xff) * 153 + \ + (((s) >> 8) & 0xff) * 301 + \ + (((s) ) & 0xff) * 58) >> 2) + +#endif /* _PICTURE_H_ */ |