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pixman-1
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pixman.h
/*********************************************************** Copyright 1987, 1998 The Open Group 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. The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. Except as contained in this notice, the name of The Open Group shall not be used in advertising or otherwise to promote the sale, use or other dealings in this Software without prior written authorization from The Open Group. Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts. All Rights Reserved Permission to use, copy, modify, and distribute this software and its documentation for any purpose and without fee is hereby granted, 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 Digital not be used in advertising or publicity pertaining to distribution of the software without specific, written prior permission. DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL DIGITAL 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. ******************************************************************/ /* * Copyright © 1998, 2004 Keith Packard * Copyright 2007 Red Hat, 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 Keith Packard not be used in * advertising or publicity pertaining to distribution of the software without * specific, written prior permission. Keith Packard makes no * representations about the suitability of this software for any purpose. It * is provided "as is" without express or implied warranty. * * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO * EVENT SHALL KEITH PACKARD 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. */ #ifndef PIXMAN_H__ #define PIXMAN_H__ #include <pixman-version.h> #ifdef __cplusplus #define PIXMAN_BEGIN_DECLS extern "C" { #define PIXMAN_END_DECLS } #else #define PIXMAN_BEGIN_DECLS #define PIXMAN_END_DECLS #endif PIXMAN_BEGIN_DECLS /* * Standard integers */ #if !defined (PIXMAN_DONT_DEFINE_STDINT) #if defined (_SVR4) || defined (SVR4) || defined (__OpenBSD__) || defined (_sgi) || defined (__sun) || defined (sun) || defined (__digital__) || defined (__HP_cc) # include <inttypes.h> /* VS 2010 (_MSC_VER 1600) has stdint.h */ #elif defined (_MSC_VER) && _MSC_VER < 1600 typedef __int8 int8_t; typedef unsigned __int8 uint8_t; typedef __int16 int16_t; typedef unsigned __int16 uint16_t; typedef __int32 int32_t; typedef unsigned __int32 uint32_t; typedef __int64 int64_t; typedef unsigned __int64 uint64_t; #elif defined (_AIX) # include <sys/inttypes.h> #else # include <stdint.h> #endif #endif /* * Boolean */ typedef int pixman_bool_t; /* * Fixpoint numbers */ typedef int64_t pixman_fixed_32_32_t; typedef pixman_fixed_32_32_t pixman_fixed_48_16_t; typedef uint32_t pixman_fixed_1_31_t; typedef uint32_t pixman_fixed_1_16_t; typedef int32_t pixman_fixed_16_16_t; typedef pixman_fixed_16_16_t pixman_fixed_t; #define pixman_fixed_e ((pixman_fixed_t) 1) #define pixman_fixed_1 (pixman_int_to_fixed(1)) #define pixman_fixed_1_minus_e (pixman_fixed_1 - pixman_fixed_e) #define pixman_fixed_minus_1 (pixman_int_to_fixed(-1)) #define pixman_fixed_to_int(f) ((int) ((f) >> 16)) #define pixman_int_to_fixed(i) ((pixman_fixed_t) ((uint32_t) (i) << 16)) #define pixman_fixed_to_double(f) (double) ((f) / (double) pixman_fixed_1) #define pixman_double_to_fixed(d) ((pixman_fixed_t) ((d) * 65536.0)) #define pixman_fixed_frac(f) ((f) & pixman_fixed_1_minus_e) #define pixman_fixed_floor(f) ((f) & ~pixman_fixed_1_minus_e) #define pixman_fixed_ceil(f) pixman_fixed_floor ((f) + pixman_fixed_1_minus_e) #define pixman_fixed_fraction(f) ((f) & pixman_fixed_1_minus_e) #define pixman_fixed_mod_2(f) ((f) & (pixman_fixed1 | pixman_fixed_1_minus_e)) #define pixman_max_fixed_48_16 ((pixman_fixed_48_16_t) 0x7fffffff) #define pixman_min_fixed_48_16 (-((pixman_fixed_48_16_t) 1 << 31)) /* * Misc structs */ typedef struct pixman_color pixman_color_t; typedef struct pixman_point_fixed pixman_point_fixed_t; typedef struct pixman_line_fixed pixman_line_fixed_t; typedef struct pixman_vector pixman_vector_t; typedef struct pixman_transform pixman_transform_t; struct pixman_color { uint16_t red; uint16_t green; uint16_t blue; uint16_t alpha; }; struct pixman_point_fixed { pixman_fixed_t x; pixman_fixed_t y; }; struct pixman_line_fixed { pixman_point_fixed_t p1, p2; }; /* * Fixed point matrices */ struct pixman_vector { pixman_fixed_t vector[3]; }; struct pixman_transform { pixman_fixed_t matrix[3][3]; }; /* forward declaration (sorry) */ struct pixman_box16; typedef union pixman_image pixman_image_t; PIXMAN_API void pixman_transform_init_identity (struct pixman_transform *matrix); PIXMAN_API pixman_bool_t pixman_transform_point_3d (const struct pixman_transform *transform, struct pixman_vector *vector); PIXMAN_API pixman_bool_t pixman_transform_point (const struct pixman_transform *transform, struct pixman_vector *vector); PIXMAN_API pixman_bool_t pixman_transform_multiply (struct pixman_transform *dst, const struct pixman_transform *l, const struct pixman_transform *r); PIXMAN_API void pixman_transform_init_scale (struct pixman_transform *t, pixman_fixed_t sx, pixman_fixed_t sy); PIXMAN_API pixman_bool_t pixman_transform_scale (struct pixman_transform *forward, struct pixman_transform *reverse, pixman_fixed_t sx, pixman_fixed_t sy); PIXMAN_API void pixman_transform_init_rotate (struct pixman_transform *t, pixman_fixed_t cos, pixman_fixed_t sin); PIXMAN_API pixman_bool_t pixman_transform_rotate (struct pixman_transform *forward, struct pixman_transform *reverse, pixman_fixed_t c, pixman_fixed_t s); PIXMAN_API void pixman_transform_init_translate (struct pixman_transform *t, pixman_fixed_t tx, pixman_fixed_t ty); PIXMAN_API pixman_bool_t pixman_transform_translate (struct pixman_transform *forward, struct pixman_transform *reverse, pixman_fixed_t tx, pixman_fixed_t ty); PIXMAN_API pixman_bool_t pixman_transform_bounds (const struct pixman_transform *matrix, struct pixman_box16 *b); PIXMAN_API pixman_bool_t pixman_transform_invert (struct pixman_transform *dst, const struct pixman_transform *src); PIXMAN_API pixman_bool_t pixman_transform_is_identity (const struct pixman_transform *t); PIXMAN_API pixman_bool_t pixman_transform_is_scale (const struct pixman_transform *t); PIXMAN_API pixman_bool_t pixman_transform_is_int_translate (const struct pixman_transform *t); PIXMAN_API pixman_bool_t pixman_transform_is_inverse (const struct pixman_transform *a, const struct pixman_transform *b); /* * Floating point matrices */ typedef struct pixman_f_transform pixman_f_transform_t; typedef struct pixman_f_vector pixman_f_vector_t; struct pixman_f_vector { double v[3]; }; struct pixman_f_transform { double m[3][3]; }; PIXMAN_API pixman_bool_t pixman_transform_from_pixman_f_transform (struct pixman_transform *t, const struct pixman_f_transform *ft); PIXMAN_API void pixman_f_transform_from_pixman_transform (struct pixman_f_transform *ft, const struct pixman_transform *t); PIXMAN_API pixman_bool_t pixman_f_transform_invert (struct pixman_f_transform *dst, const struct pixman_f_transform *src); PIXMAN_API pixman_bool_t pixman_f_transform_point (const struct pixman_f_transform *t, struct pixman_f_vector *v); PIXMAN_API void pixman_f_transform_point_3d (const struct pixman_f_transform *t, struct pixman_f_vector *v); PIXMAN_API void pixman_f_transform_multiply (struct pixman_f_transform *dst, const struct pixman_f_transform *l, const struct pixman_f_transform *r); PIXMAN_API void pixman_f_transform_init_scale (struct pixman_f_transform *t, double sx, double sy); PIXMAN_API pixman_bool_t pixman_f_transform_scale (struct pixman_f_transform *forward, struct pixman_f_transform *reverse, double sx, double sy); PIXMAN_API void pixman_f_transform_init_rotate (struct pixman_f_transform *t, double cos, double sin); PIXMAN_API pixman_bool_t pixman_f_transform_rotate (struct pixman_f_transform *forward, struct pixman_f_transform *reverse, double c, double s); PIXMAN_API void pixman_f_transform_init_translate (struct pixman_f_transform *t, double tx, double ty); PIXMAN_API pixman_bool_t pixman_f_transform_translate (struct pixman_f_transform *forward, struct pixman_f_transform *reverse, double tx, double ty); PIXMAN_API pixman_bool_t pixman_f_transform_bounds (const struct pixman_f_transform *t, struct pixman_box16 *b); PIXMAN_API void pixman_f_transform_init_identity (struct pixman_f_transform *t); typedef enum { PIXMAN_REPEAT_NONE, PIXMAN_REPEAT_NORMAL, PIXMAN_REPEAT_PAD, PIXMAN_REPEAT_REFLECT } pixman_repeat_t; typedef enum { PIXMAN_DITHER_NONE, PIXMAN_DITHER_FAST, PIXMAN_DITHER_GOOD, PIXMAN_DITHER_BEST, PIXMAN_DITHER_ORDERED_BAYER_8, PIXMAN_DITHER_ORDERED_BLUE_NOISE_64, } pixman_dither_t; typedef enum { PIXMAN_FILTER_FAST, PIXMAN_FILTER_GOOD, PIXMAN_FILTER_BEST, PIXMAN_FILTER_NEAREST, PIXMAN_FILTER_BILINEAR, PIXMAN_FILTER_CONVOLUTION, /* The SEPARABLE_CONVOLUTION filter takes the following parameters: * * width: integer given as 16.16 fixpoint number * height: integer given as 16.16 fixpoint number * x_phase_bits: integer given as 16.16 fixpoint * y_phase_bits: integer given as 16.16 fixpoint * xtables: (1 << x_phase_bits) tables of size width * ytables: (1 << y_phase_bits) tables of size height * * When sampling at (x, y), the location is first rounded to one of * n_x_phases * n_y_phases subpixel positions. These subpixel positions * determine an xtable and a ytable to use. * * Conceptually a width x height matrix is then formed in which each entry * is the product of the corresponding entries in the x and y tables. * This matrix is then aligned with the image pixels such that its center * is as close as possible to the subpixel location chosen earlier. Then * the image is convolved with the matrix and the resulting pixel returned. */ PIXMAN_FILTER_SEPARABLE_CONVOLUTION } pixman_filter_t; typedef enum { PIXMAN_OP_CLEAR = 0x00, PIXMAN_OP_SRC = 0x01, PIXMAN_OP_DST = 0x02, PIXMAN_OP_OVER = 0x03, PIXMAN_OP_OVER_REVERSE = 0x04, PIXMAN_OP_IN = 0x05, PIXMAN_OP_IN_REVERSE = 0x06, PIXMAN_OP_OUT = 0x07, PIXMAN_OP_OUT_REVERSE = 0x08, PIXMAN_OP_ATOP = 0x09, PIXMAN_OP_ATOP_REVERSE = 0x0a, PIXMAN_OP_XOR = 0x0b, PIXMAN_OP_ADD = 0x0c, PIXMAN_OP_SATURATE = 0x0d, PIXMAN_OP_DISJOINT_CLEAR = 0x10, PIXMAN_OP_DISJOINT_SRC = 0x11, PIXMAN_OP_DISJOINT_DST = 0x12, PIXMAN_OP_DISJOINT_OVER = 0x13, PIXMAN_OP_DISJOINT_OVER_REVERSE = 0x14, PIXMAN_OP_DISJOINT_IN = 0x15, PIXMAN_OP_DISJOINT_IN_REVERSE = 0x16, PIXMAN_OP_DISJOINT_OUT = 0x17, PIXMAN_OP_DISJOINT_OUT_REVERSE = 0x18, PIXMAN_OP_DISJOINT_ATOP = 0x19, PIXMAN_OP_DISJOINT_ATOP_REVERSE = 0x1a, PIXMAN_OP_DISJOINT_XOR = 0x1b, PIXMAN_OP_CONJOINT_CLEAR = 0x20, PIXMAN_OP_CONJOINT_SRC = 0x21, PIXMAN_OP_CONJOINT_DST = 0x22, PIXMAN_OP_CONJOINT_OVER = 0x23, PIXMAN_OP_CONJOINT_OVER_REVERSE = 0x24, PIXMAN_OP_CONJOINT_IN = 0x25, PIXMAN_OP_CONJOINT_IN_REVERSE = 0x26, PIXMAN_OP_CONJOINT_OUT = 0x27, PIXMAN_OP_CONJOINT_OUT_REVERSE = 0x28, PIXMAN_OP_CONJOINT_ATOP = 0x29, PIXMAN_OP_CONJOINT_ATOP_REVERSE = 0x2a, PIXMAN_OP_CONJOINT_XOR = 0x2b, PIXMAN_OP_MULTIPLY = 0x30, PIXMAN_OP_SCREEN = 0x31, PIXMAN_OP_OVERLAY = 0x32, PIXMAN_OP_DARKEN = 0x33, PIXMAN_OP_LIGHTEN = 0x34, PIXMAN_OP_COLOR_DODGE = 0x35, PIXMAN_OP_COLOR_BURN = 0x36, PIXMAN_OP_HARD_LIGHT = 0x37, PIXMAN_OP_SOFT_LIGHT = 0x38, PIXMAN_OP_DIFFERENCE = 0x39, PIXMAN_OP_EXCLUSION = 0x3a, PIXMAN_OP_HSL_HUE = 0x3b, PIXMAN_OP_HSL_SATURATION = 0x3c, PIXMAN_OP_HSL_COLOR = 0x3d, PIXMAN_OP_HSL_LUMINOSITY = 0x3e #ifdef PIXMAN_USE_INTERNAL_API , PIXMAN_N_OPERATORS, PIXMAN_OP_NONE = PIXMAN_N_OPERATORS #endif } pixman_op_t; /* * Regions */ typedef struct pixman_region16_data pixman_region16_data_t; typedef struct pixman_box16 pixman_box16_t; typedef struct pixman_rectangle16 pixman_rectangle16_t; typedef struct pixman_region16 pixman_region16_t; struct pixman_region16_data { long size; long numRects; /* pixman_box16_t rects[size]; in memory but not explicitly declared */ }; struct pixman_rectangle16 { int16_t x, y; uint16_t width, height; }; struct pixman_box16 { int16_t x1, y1, x2, y2; }; struct pixman_region16 { pixman_box16_t extents; pixman_region16_data_t *data; }; typedef enum { PIXMAN_REGION_OUT, PIXMAN_REGION_IN, PIXMAN_REGION_PART } pixman_region_overlap_t; /* This function exists only to make it possible to preserve * the X ABI - it should go away at first opportunity. */ PIXMAN_API void pixman_region_set_static_pointers (pixman_box16_t *empty_box, pixman_region16_data_t *empty_data, pixman_region16_data_t *broken_data); /* creation/destruction */ PIXMAN_API void pixman_region_init (pixman_region16_t *region); PIXMAN_API void pixman_region_init_rect (pixman_region16_t *region, int x, int y, unsigned int width, unsigned int height); PIXMAN_API pixman_bool_t pixman_region_init_rects (pixman_region16_t *region, const pixman_box16_t *boxes, int count); PIXMAN_API void pixman_region_init_with_extents (pixman_region16_t *region, const pixman_box16_t *extents); PIXMAN_API void pixman_region_init_from_image (pixman_region16_t *region, pixman_image_t *image); PIXMAN_API void pixman_region_fini (pixman_region16_t *region); /* manipulation */ PIXMAN_API void pixman_region_translate (pixman_region16_t *region, int x, int y); PIXMAN_API pixman_bool_t pixman_region_copy (pixman_region16_t *dest, const pixman_region16_t *source); PIXMAN_API pixman_bool_t pixman_region_intersect (pixman_region16_t *new_reg, const pixman_region16_t *reg1, const pixman_region16_t *reg2); PIXMAN_API pixman_bool_t pixman_region_union (pixman_region16_t *new_reg, const pixman_region16_t *reg1, const pixman_region16_t *reg2); PIXMAN_API pixman_bool_t pixman_region_union_rect (pixman_region16_t *dest, const pixman_region16_t *source, int x, int y, unsigned int width, unsigned int height); PIXMAN_API pixman_bool_t pixman_region_intersect_rect (pixman_region16_t *dest, const pixman_region16_t *source, int x, int y, unsigned int width, unsigned int height); PIXMAN_API pixman_bool_t pixman_region_subtract (pixman_region16_t *reg_d, const pixman_region16_t *reg_m, const pixman_region16_t *reg_s); PIXMAN_API pixman_bool_t pixman_region_inverse (pixman_region16_t *new_reg, const pixman_region16_t *reg1, const pixman_box16_t *inv_rect); PIXMAN_API pixman_bool_t pixman_region_contains_point (const pixman_region16_t *region, int x, int y, pixman_box16_t *box); PIXMAN_API pixman_region_overlap_t pixman_region_contains_rectangle (const pixman_region16_t *region, const pixman_box16_t *prect); PIXMAN_API pixman_bool_t pixman_region_not_empty (const pixman_region16_t *region); PIXMAN_API pixman_box16_t * pixman_region_extents (const pixman_region16_t *region); PIXMAN_API int pixman_region_n_rects (const pixman_region16_t *region); PIXMAN_API pixman_box16_t * pixman_region_rectangles (const pixman_region16_t *region, int *n_rects); PIXMAN_API pixman_bool_t pixman_region_equal (const pixman_region16_t *region1, const pixman_region16_t *region2); PIXMAN_API pixman_bool_t pixman_region_selfcheck (pixman_region16_t *region); PIXMAN_API void pixman_region_reset (pixman_region16_t *region, const pixman_box16_t *box); PIXMAN_API void pixman_region_clear (pixman_region16_t *region); /* * 32 bit regions */ typedef struct pixman_region32_data pixman_region32_data_t; typedef struct pixman_box32 pixman_box32_t; typedef struct pixman_rectangle32 pixman_rectangle32_t; typedef struct pixman_region32 pixman_region32_t; struct pixman_region32_data { long size; long numRects; /* pixman_box32_t rects[size]; in memory but not explicitly declared */ }; struct pixman_rectangle32 { int32_t x, y; uint32_t width, height; }; struct pixman_box32 { int32_t x1, y1, x2, y2; }; struct pixman_region32 { pixman_box32_t extents; pixman_region32_data_t *data; }; /* creation/destruction */ PIXMAN_API void pixman_region32_init (pixman_region32_t *region); PIXMAN_API void pixman_region32_init_rect (pixman_region32_t *region, int x, int y, unsigned int width, unsigned int height); PIXMAN_API pixman_bool_t pixman_region32_init_rects (pixman_region32_t *region, const pixman_box32_t *boxes, int count); PIXMAN_API void pixman_region32_init_with_extents (pixman_region32_t *region, const pixman_box32_t *extents); PIXMAN_API void pixman_region32_init_from_image (pixman_region32_t *region, pixman_image_t *image); PIXMAN_API void pixman_region32_fini (pixman_region32_t *region); /* manipulation */ PIXMAN_API void pixman_region32_translate (pixman_region32_t *region, int x, int y); PIXMAN_API pixman_bool_t pixman_region32_copy (pixman_region32_t *dest, const pixman_region32_t *source); PIXMAN_API pixman_bool_t pixman_region32_intersect (pixman_region32_t *new_reg, const pixman_region32_t *reg1, const pixman_region32_t *reg2); PIXMAN_API pixman_bool_t pixman_region32_union (pixman_region32_t *new_reg, const pixman_region32_t *reg1, const pixman_region32_t *reg2); PIXMAN_API pixman_bool_t pixman_region32_intersect_rect (pixman_region32_t *dest, const pixman_region32_t *source, int x, int y, unsigned int width, unsigned int height); PIXMAN_API pixman_bool_t pixman_region32_union_rect (pixman_region32_t *dest, const pixman_region32_t *source, int x, int y, unsigned int width, unsigned int height); PIXMAN_API pixman_bool_t pixman_region32_subtract (pixman_region32_t *reg_d, const pixman_region32_t *reg_m, const pixman_region32_t *reg_s); PIXMAN_API pixman_bool_t pixman_region32_inverse (pixman_region32_t *new_reg, const pixman_region32_t *reg1, const pixman_box32_t *inv_rect); PIXMAN_API pixman_bool_t pixman_region32_contains_point (const pixman_region32_t *region, int x, int y, pixman_box32_t *box); PIXMAN_API pixman_region_overlap_t pixman_region32_contains_rectangle (const pixman_region32_t *region, const pixman_box32_t *prect); PIXMAN_API pixman_bool_t pixman_region32_not_empty (const pixman_region32_t *region); PIXMAN_API pixman_box32_t * pixman_region32_extents (const pixman_region32_t *region); PIXMAN_API int pixman_region32_n_rects (const pixman_region32_t *region); PIXMAN_API pixman_box32_t * pixman_region32_rectangles (const pixman_region32_t *region, int *n_rects); PIXMAN_API pixman_bool_t pixman_region32_equal (const pixman_region32_t *region1, const pixman_region32_t *region2); PIXMAN_API pixman_bool_t pixman_region32_selfcheck (pixman_region32_t *region); PIXMAN_API void pixman_region32_reset (pixman_region32_t *region, const pixman_box32_t *box); PIXMAN_API void pixman_region32_clear (pixman_region32_t *region); /* Copy / Fill / Misc */ PIXMAN_API pixman_bool_t pixman_blt (uint32_t *src_bits, uint32_t *dst_bits, int src_stride, int dst_stride, int src_bpp, int dst_bpp, int src_x, int src_y, int dest_x, int dest_y, int width, int height); PIXMAN_API pixman_bool_t pixman_fill (uint32_t *bits, int stride, int bpp, int x, int y, int width, int height, uint32_t _xor); PIXMAN_API int pixman_version (void); PIXMAN_API const char* pixman_version_string (void); /* * Images */ typedef struct pixman_indexed pixman_indexed_t; typedef struct pixman_gradient_stop pixman_gradient_stop_t; typedef uint32_t (* pixman_read_memory_func_t) (const void *src, int size); typedef void (* pixman_write_memory_func_t) (void *dst, uint32_t value, int size); typedef void (* pixman_image_destroy_func_t) (pixman_image_t *image, void *data); struct pixman_gradient_stop { pixman_fixed_t x; pixman_color_t color; }; #define PIXMAN_MAX_INDEXED 256 /* XXX depth must be <= 8 */ #if PIXMAN_MAX_INDEXED <= 256 typedef uint8_t pixman_index_type; #endif struct pixman_indexed { pixman_bool_t color; uint32_t rgba[PIXMAN_MAX_INDEXED]; pixman_index_type ent[32768]; }; /* * 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 PIXMAN_FORMAT(bpp,type,a,r,g,b) (((bpp) << 24) | \ ((type) << 16) | \ ((a) << 12) | \ ((r) << 8) | \ ((g) << 4) | \ ((b))) #define PIXMAN_FORMAT_BYTE(bpp,type,a,r,g,b) \ (((bpp >> 3) << 24) | \ (3 << 22) | ((type) << 16) | \ ((a >> 3) << 12) | \ ((r >> 3) << 8) | \ ((g >> 3) << 4) | \ ((b >> 3))) #define PIXMAN_FORMAT_RESHIFT(val, ofs, num) \ (((val >> (ofs)) & ((1 << (num)) - 1)) << ((val >> 22) & 3)) #define PIXMAN_FORMAT_BPP(f) PIXMAN_FORMAT_RESHIFT(f, 24, 8) #define PIXMAN_FORMAT_SHIFT(f) ((uint32_t)((f >> 22) & 3)) #define PIXMAN_FORMAT_TYPE(f) (((f) >> 16) & 0x3f) #define PIXMAN_FORMAT_A(f) PIXMAN_FORMAT_RESHIFT(f, 12, 4) #define PIXMAN_FORMAT_R(f) PIXMAN_FORMAT_RESHIFT(f, 8, 4) #define PIXMAN_FORMAT_G(f) PIXMAN_FORMAT_RESHIFT(f, 4, 4) #define PIXMAN_FORMAT_B(f) PIXMAN_FORMAT_RESHIFT(f, 0, 4) #define PIXMAN_FORMAT_RGB(f) (((f) ) & 0xfff) #define PIXMAN_FORMAT_VIS(f) (((f) ) & 0xffff) #define PIXMAN_FORMAT_DEPTH(f) (PIXMAN_FORMAT_A(f) + \ PIXMAN_FORMAT_R(f) + \ PIXMAN_FORMAT_G(f) + \ PIXMAN_FORMAT_B(f)) #define PIXMAN_TYPE_OTHER 0 #define PIXMAN_TYPE_A 1 #define PIXMAN_TYPE_ARGB 2 #define PIXMAN_TYPE_ABGR 3 #define PIXMAN_TYPE_COLOR 4 #define PIXMAN_TYPE_GRAY 5 #define PIXMAN_TYPE_YUY2 6 #define PIXMAN_TYPE_YV12 7 #define PIXMAN_TYPE_BGRA 8 #define PIXMAN_TYPE_RGBA 9 #define PIXMAN_TYPE_ARGB_SRGB 10 #define PIXMAN_TYPE_RGBA_FLOAT 11 #define PIXMAN_FORMAT_COLOR(f) \ (PIXMAN_FORMAT_TYPE(f) == PIXMAN_TYPE_ARGB || \ PIXMAN_FORMAT_TYPE(f) == PIXMAN_TYPE_ABGR || \ PIXMAN_FORMAT_TYPE(f) == PIXMAN_TYPE_BGRA || \ PIXMAN_FORMAT_TYPE(f) == PIXMAN_TYPE_RGBA || \ PIXMAN_FORMAT_TYPE(f) == PIXMAN_TYPE_RGBA_FLOAT) typedef enum { /* 128bpp formats */ PIXMAN_rgba_float = PIXMAN_FORMAT_BYTE(128,PIXMAN_TYPE_RGBA_FLOAT,32,32,32,32), /* 96bpp formats */ PIXMAN_rgb_float = PIXMAN_FORMAT_BYTE(96,PIXMAN_TYPE_RGBA_FLOAT,0,32,32,32), /* 32bpp formats */ PIXMAN_a8r8g8b8 = PIXMAN_FORMAT(32,PIXMAN_TYPE_ARGB,8,8,8,8), PIXMAN_x8r8g8b8 = PIXMAN_FORMAT(32,PIXMAN_TYPE_ARGB,0,8,8,8), PIXMAN_a8b8g8r8 = PIXMAN_FORMAT(32,PIXMAN_TYPE_ABGR,8,8,8,8), PIXMAN_x8b8g8r8 = PIXMAN_FORMAT(32,PIXMAN_TYPE_ABGR,0,8,8,8), PIXMAN_b8g8r8a8 = PIXMAN_FORMAT(32,PIXMAN_TYPE_BGRA,8,8,8,8), PIXMAN_b8g8r8x8 = PIXMAN_FORMAT(32,PIXMAN_TYPE_BGRA,0,8,8,8), PIXMAN_r8g8b8a8 = PIXMAN_FORMAT(32,PIXMAN_TYPE_RGBA,8,8,8,8), PIXMAN_r8g8b8x8 = PIXMAN_FORMAT(32,PIXMAN_TYPE_RGBA,0,8,8,8), PIXMAN_x14r6g6b6 = PIXMAN_FORMAT(32,PIXMAN_TYPE_ARGB,0,6,6,6), PIXMAN_x2r10g10b10 = PIXMAN_FORMAT(32,PIXMAN_TYPE_ARGB,0,10,10,10), PIXMAN_a2r10g10b10 = PIXMAN_FORMAT(32,PIXMAN_TYPE_ARGB,2,10,10,10), PIXMAN_x2b10g10r10 = PIXMAN_FORMAT(32,PIXMAN_TYPE_ABGR,0,10,10,10), PIXMAN_a2b10g10r10 = PIXMAN_FORMAT(32,PIXMAN_TYPE_ABGR,2,10,10,10), /* sRGB formats */ PIXMAN_a8r8g8b8_sRGB = PIXMAN_FORMAT(32,PIXMAN_TYPE_ARGB_SRGB,8,8,8,8), /* 24bpp formats */ PIXMAN_r8g8b8 = PIXMAN_FORMAT(24,PIXMAN_TYPE_ARGB,0,8,8,8), PIXMAN_b8g8r8 = PIXMAN_FORMAT(24,PIXMAN_TYPE_ABGR,0,8,8,8), /* 16bpp formats */ PIXMAN_r5g6b5 = PIXMAN_FORMAT(16,PIXMAN_TYPE_ARGB,0,5,6,5), PIXMAN_b5g6r5 = PIXMAN_FORMAT(16,PIXMAN_TYPE_ABGR,0,5,6,5), PIXMAN_a1r5g5b5 = PIXMAN_FORMAT(16,PIXMAN_TYPE_ARGB,1,5,5,5), PIXMAN_x1r5g5b5 = PIXMAN_FORMAT(16,PIXMAN_TYPE_ARGB,0,5,5,5), PIXMAN_a1b5g5r5 = PIXMAN_FORMAT(16,PIXMAN_TYPE_ABGR,1,5,5,5), PIXMAN_x1b5g5r5 = PIXMAN_FORMAT(16,PIXMAN_TYPE_ABGR,0,5,5,5), PIXMAN_a4r4g4b4 = PIXMAN_FORMAT(16,PIXMAN_TYPE_ARGB,4,4,4,4), PIXMAN_x4r4g4b4 = PIXMAN_FORMAT(16,PIXMAN_TYPE_ARGB,0,4,4,4), PIXMAN_a4b4g4r4 = PIXMAN_FORMAT(16,PIXMAN_TYPE_ABGR,4,4,4,4), PIXMAN_x4b4g4r4 = PIXMAN_FORMAT(16,PIXMAN_TYPE_ABGR,0,4,4,4), /* 8bpp formats */ PIXMAN_a8 = PIXMAN_FORMAT(8,PIXMAN_TYPE_A,8,0,0,0), PIXMAN_r3g3b2 = PIXMAN_FORMAT(8,PIXMAN_TYPE_ARGB,0,3,3,2), PIXMAN_b2g3r3 = PIXMAN_FORMAT(8,PIXMAN_TYPE_ABGR,0,3,3,2), PIXMAN_a2r2g2b2 = PIXMAN_FORMAT(8,PIXMAN_TYPE_ARGB,2,2,2,2), PIXMAN_a2b2g2r2 = PIXMAN_FORMAT(8,PIXMAN_TYPE_ABGR,2,2,2,2), PIXMAN_c8 = PIXMAN_FORMAT(8,PIXMAN_TYPE_COLOR,0,0,0,0), PIXMAN_g8 = PIXMAN_FORMAT(8,PIXMAN_TYPE_GRAY,0,0,0,0), PIXMAN_x4a4 = PIXMAN_FORMAT(8,PIXMAN_TYPE_A,4,0,0,0), PIXMAN_x4c4 = PIXMAN_FORMAT(8,PIXMAN_TYPE_COLOR,0,0,0,0), PIXMAN_x4g4 = PIXMAN_FORMAT(8,PIXMAN_TYPE_GRAY,0,0,0,0), /* 4bpp formats */ PIXMAN_a4 = PIXMAN_FORMAT(4,PIXMAN_TYPE_A,4,0,0,0), PIXMAN_r1g2b1 = PIXMAN_FORMAT(4,PIXMAN_TYPE_ARGB,0,1,2,1), PIXMAN_b1g2r1 = PIXMAN_FORMAT(4,PIXMAN_TYPE_ABGR,0,1,2,1), PIXMAN_a1r1g1b1 = PIXMAN_FORMAT(4,PIXMAN_TYPE_ARGB,1,1,1,1), PIXMAN_a1b1g1r1 = PIXMAN_FORMAT(4,PIXMAN_TYPE_ABGR,1,1,1,1), PIXMAN_c4 = PIXMAN_FORMAT(4,PIXMAN_TYPE_COLOR,0,0,0,0), PIXMAN_g4 = PIXMAN_FORMAT(4,PIXMAN_TYPE_GRAY,0,0,0,0), /* 1bpp formats */ PIXMAN_a1 = PIXMAN_FORMAT(1,PIXMAN_TYPE_A,1,0,0,0), PIXMAN_g1 = PIXMAN_FORMAT(1,PIXMAN_TYPE_GRAY,0,0,0,0), /* YUV formats */ PIXMAN_yuy2 = PIXMAN_FORMAT(16,PIXMAN_TYPE_YUY2,0,0,0,0), PIXMAN_yv12 = PIXMAN_FORMAT(12,PIXMAN_TYPE_YV12,0,0,0,0) } pixman_format_code_t; /* Querying supported format values. */ PIXMAN_API pixman_bool_t pixman_format_supported_destination (pixman_format_code_t format); PIXMAN_API pixman_bool_t pixman_format_supported_source (pixman_format_code_t format); /* Constructors */ PIXMAN_API pixman_image_t *pixman_image_create_solid_fill (const pixman_color_t *color); PIXMAN_API pixman_image_t *pixman_image_create_linear_gradient (const pixman_point_fixed_t *p1, const pixman_point_fixed_t *p2, const pixman_gradient_stop_t *stops, int n_stops); PIXMAN_API pixman_image_t *pixman_image_create_radial_gradient (const pixman_point_fixed_t *inner, const pixman_point_fixed_t *outer, pixman_fixed_t inner_radius, pixman_fixed_t outer_radius, const pixman_gradient_stop_t *stops, int n_stops); PIXMAN_API pixman_image_t *pixman_image_create_conical_gradient (const pixman_point_fixed_t *center, pixman_fixed_t angle, const pixman_gradient_stop_t *stops, int n_stops); PIXMAN_API pixman_image_t *pixman_image_create_bits (pixman_format_code_t format, int width, int height, uint32_t *bits, int rowstride_bytes); PIXMAN_API pixman_image_t *pixman_image_create_bits_no_clear (pixman_format_code_t format, int width, int height, uint32_t * bits, int rowstride_bytes); /* Destructor */ PIXMAN_API pixman_image_t *pixman_image_ref (pixman_image_t *image); PIXMAN_API pixman_bool_t pixman_image_unref (pixman_image_t *image); PIXMAN_API void pixman_image_set_destroy_function (pixman_image_t *image, pixman_image_destroy_func_t function, void *data); PIXMAN_API void * pixman_image_get_destroy_data (pixman_image_t *image); /* Set properties */ PIXMAN_API pixman_bool_t pixman_image_set_clip_region (pixman_image_t *image, pixman_region16_t *region); PIXMAN_API pixman_bool_t pixman_image_set_clip_region32 (pixman_image_t *image, pixman_region32_t *region); PIXMAN_API void pixman_image_set_has_client_clip (pixman_image_t *image, pixman_bool_t clien_clip); PIXMAN_API pixman_bool_t pixman_image_set_transform (pixman_image_t *image, const pixman_transform_t *transform); PIXMAN_API void pixman_image_set_repeat (pixman_image_t *image, pixman_repeat_t repeat); PIXMAN_API void pixman_image_set_dither (pixman_image_t *image, pixman_dither_t dither); PIXMAN_API void pixman_image_set_dither_offset (pixman_image_t *image, int offset_x, int offset_y); PIXMAN_API pixman_bool_t pixman_image_set_filter (pixman_image_t *image, pixman_filter_t filter, const pixman_fixed_t *filter_params, int n_filter_params); PIXMAN_API void pixman_image_set_source_clipping (pixman_image_t *image, pixman_bool_t source_clipping); PIXMAN_API void pixman_image_set_alpha_map (pixman_image_t *image, pixman_image_t *alpha_map, int16_t x, int16_t y); PIXMAN_API void pixman_image_set_component_alpha (pixman_image_t *image, pixman_bool_t component_alpha); PIXMAN_API pixman_bool_t pixman_image_get_component_alpha (pixman_image_t *image); PIXMAN_API void pixman_image_set_accessors (pixman_image_t *image, pixman_read_memory_func_t read_func, pixman_write_memory_func_t write_func); PIXMAN_API void pixman_image_set_indexed (pixman_image_t *image, const pixman_indexed_t *indexed); PIXMAN_API uint32_t *pixman_image_get_data (pixman_image_t *image); PIXMAN_API int pixman_image_get_width (pixman_image_t *image); PIXMAN_API int pixman_image_get_height (pixman_image_t *image); PIXMAN_API int pixman_image_get_stride (pixman_image_t *image); /* in bytes */ PIXMAN_API int pixman_image_get_depth (pixman_image_t *image); PIXMAN_API pixman_format_code_t pixman_image_get_format (pixman_image_t *image); typedef enum { PIXMAN_KERNEL_IMPULSE, PIXMAN_KERNEL_BOX, PIXMAN_KERNEL_LINEAR, PIXMAN_KERNEL_CUBIC, PIXMAN_KERNEL_GAUSSIAN, PIXMAN_KERNEL_LANCZOS2, PIXMAN_KERNEL_LANCZOS3, PIXMAN_KERNEL_LANCZOS3_STRETCHED /* Jim Blinn's 'nice' filter */ } pixman_kernel_t; /* Create the parameter list for a SEPARABLE_CONVOLUTION filter * with the given kernels and scale parameters. */ PIXMAN_API pixman_fixed_t * pixman_filter_create_separable_convolution (int *n_values, pixman_fixed_t scale_x, pixman_fixed_t scale_y, pixman_kernel_t reconstruct_x, pixman_kernel_t reconstruct_y, pixman_kernel_t sample_x, pixman_kernel_t sample_y, int subsample_bits_x, int subsample_bits_y); PIXMAN_API pixman_bool_t pixman_image_fill_rectangles (pixman_op_t op, pixman_image_t *image, const pixman_color_t *color, int n_rects, const pixman_rectangle16_t *rects); PIXMAN_API pixman_bool_t pixman_image_fill_boxes (pixman_op_t op, pixman_image_t *dest, const pixman_color_t *color, int n_boxes, const pixman_box32_t *boxes); /* Composite */ PIXMAN_API pixman_bool_t pixman_compute_composite_region (pixman_region16_t *region, pixman_image_t *src_image, pixman_image_t *mask_image, pixman_image_t *dest_image, int16_t src_x, int16_t src_y, int16_t mask_x, int16_t mask_y, int16_t dest_x, int16_t dest_y, uint16_t width, uint16_t height); PIXMAN_API void pixman_image_composite (pixman_op_t op, pixman_image_t *src, pixman_image_t *mask, pixman_image_t *dest, int16_t src_x, int16_t src_y, int16_t mask_x, int16_t mask_y, int16_t dest_x, int16_t dest_y, uint16_t width, uint16_t height); PIXMAN_API void pixman_image_composite32 (pixman_op_t op, pixman_image_t *src, pixman_image_t *mask, pixman_image_t *dest, int32_t src_x, int32_t src_y, int32_t mask_x, int32_t mask_y, int32_t dest_x, int32_t dest_y, int32_t width, int32_t height); /* Executive Summary: This function is a no-op that only exists * for historical reasons. * * There used to be a bug in the X server where it would rely on * out-of-bounds accesses when it was asked to composite with a * window as the source. It would create a pixman image pointing * to some bogus position in memory, but then set a clip region * to the position where the actual bits were. * * Due to a bug in old versions of pixman, where it would not clip * against the image bounds when a clip region was set, this would * actually work. So when the pixman bug was fixed, a workaround was * added to allow certain out-of-bound accesses. This function disabled * those workarounds. * * Since 0.21.2, pixman doesn't do these workarounds anymore, so now this * function is a no-op. */ PIXMAN_API void pixman_disable_out_of_bounds_workaround (void); /* * Glyphs */ typedef struct pixman_glyph_cache_t pixman_glyph_cache_t; typedef struct { int x, y; const void *glyph; } pixman_glyph_t; PIXMAN_API pixman_glyph_cache_t *pixman_glyph_cache_create (void); PIXMAN_API void pixman_glyph_cache_destroy (pixman_glyph_cache_t *cache); PIXMAN_API void pixman_glyph_cache_freeze (pixman_glyph_cache_t *cache); PIXMAN_API void pixman_glyph_cache_thaw (pixman_glyph_cache_t *cache); PIXMAN_API const void * pixman_glyph_cache_lookup (pixman_glyph_cache_t *cache, void *font_key, void *glyph_key); PIXMAN_API const void * pixman_glyph_cache_insert (pixman_glyph_cache_t *cache, void *font_key, void *glyph_key, int origin_x, int origin_y, pixman_image_t *glyph_image); PIXMAN_API void pixman_glyph_cache_remove (pixman_glyph_cache_t *cache, void *font_key, void *glyph_key); PIXMAN_API void pixman_glyph_get_extents (pixman_glyph_cache_t *cache, int n_glyphs, pixman_glyph_t *glyphs, pixman_box32_t *extents); PIXMAN_API pixman_format_code_t pixman_glyph_get_mask_format (pixman_glyph_cache_t *cache, int n_glyphs, const pixman_glyph_t *glyphs); PIXMAN_API void pixman_composite_glyphs (pixman_op_t op, pixman_image_t *src, pixman_image_t *dest, pixman_format_code_t mask_format, int32_t src_x, int32_t src_y, int32_t mask_x, int32_t mask_y, int32_t dest_x, int32_t dest_y, int32_t width, int32_t height, pixman_glyph_cache_t *cache, int n_glyphs, const pixman_glyph_t *glyphs); PIXMAN_API void pixman_composite_glyphs_no_mask (pixman_op_t op, pixman_image_t *src, pixman_image_t *dest, int32_t src_x, int32_t src_y, int32_t dest_x, int32_t dest_y, pixman_glyph_cache_t *cache, int n_glyphs, const pixman_glyph_t *glyphs); /* * Trapezoids */ typedef struct pixman_edge pixman_edge_t; typedef struct pixman_trapezoid pixman_trapezoid_t; typedef struct pixman_trap pixman_trap_t; typedef struct pixman_span_fix pixman_span_fix_t; typedef struct pixman_triangle pixman_triangle_t; /* * An edge structure. This represents a single polygon edge * and can be quickly stepped across small or large gaps in the * sample grid */ struct pixman_edge { pixman_fixed_t x; pixman_fixed_t e; pixman_fixed_t stepx; pixman_fixed_t signdx; pixman_fixed_t dy; pixman_fixed_t dx; pixman_fixed_t stepx_small; pixman_fixed_t stepx_big; pixman_fixed_t dx_small; pixman_fixed_t dx_big; }; struct pixman_trapezoid { pixman_fixed_t top, bottom; pixman_line_fixed_t left, right; }; struct pixman_triangle { pixman_point_fixed_t p1, p2, p3; }; /* whether 't' is a well defined not obviously empty trapezoid */ #define pixman_trapezoid_valid(t) \ ((t)->left.p1.y != (t)->left.p2.y && \ (t)->right.p1.y != (t)->right.p2.y && \ ((t)->bottom > (t)->top)) struct pixman_span_fix { pixman_fixed_t l, r, y; }; struct pixman_trap { pixman_span_fix_t top, bot; }; PIXMAN_API pixman_fixed_t pixman_sample_ceil_y (pixman_fixed_t y, int bpp); PIXMAN_API pixman_fixed_t pixman_sample_floor_y (pixman_fixed_t y, int bpp); PIXMAN_API void pixman_edge_step (pixman_edge_t *e, int n); PIXMAN_API void pixman_edge_init (pixman_edge_t *e, int bpp, pixman_fixed_t y_start, pixman_fixed_t x_top, pixman_fixed_t y_top, pixman_fixed_t x_bot, pixman_fixed_t y_bot); PIXMAN_API void pixman_line_fixed_edge_init (pixman_edge_t *e, int bpp, pixman_fixed_t y, const pixman_line_fixed_t *line, int x_off, int y_off); PIXMAN_API void pixman_rasterize_edges (pixman_image_t *image, pixman_edge_t *l, pixman_edge_t *r, pixman_fixed_t t, pixman_fixed_t b); PIXMAN_API void pixman_add_traps (pixman_image_t *image, int16_t x_off, int16_t y_off, int ntrap, const pixman_trap_t *traps); PIXMAN_API void pixman_add_trapezoids (pixman_image_t *image, int16_t x_off, int y_off, int ntraps, const pixman_trapezoid_t *traps); PIXMAN_API void pixman_rasterize_trapezoid (pixman_image_t *image, const pixman_trapezoid_t *trap, int x_off, int y_off); PIXMAN_API void pixman_composite_trapezoids (pixman_op_t op, pixman_image_t * src, pixman_image_t * dst, pixman_format_code_t mask_format, int x_src, int y_src, int x_dst, int y_dst, int n_traps, const pixman_trapezoid_t * traps); PIXMAN_API void pixman_composite_triangles (pixman_op_t op, pixman_image_t * src, pixman_image_t * dst, pixman_format_code_t mask_format, int x_src, int y_src, int x_dst, int y_dst, int n_tris, const pixman_triangle_t * tris); PIXMAN_API void pixman_add_triangles (pixman_image_t *image, int32_t x_off, int32_t y_off, int n_tris, const pixman_triangle_t *tris); PIXMAN_END_DECLS #endif /* PIXMAN_H__ */
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