michael@0: /*********************************************************** michael@0: michael@0: Copyright 1987, 1998 The Open Group michael@0: michael@0: Permission to use, copy, modify, distribute, and sell this software and its michael@0: documentation for any purpose is hereby granted without fee, provided that michael@0: the above copyright notice appear in all copies and that both that michael@0: copyright notice and this permission notice appear in supporting michael@0: documentation. michael@0: michael@0: The above copyright notice and this permission notice shall be included in michael@0: all copies or substantial portions of the Software. michael@0: michael@0: THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR michael@0: IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, michael@0: FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE michael@0: OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN michael@0: AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN michael@0: CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. michael@0: michael@0: Except as contained in this notice, the name of The Open Group shall not be michael@0: used in advertising or otherwise to promote the sale, use or other dealings michael@0: in this Software without prior written authorization from The Open Group. michael@0: michael@0: Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts. michael@0: michael@0: All Rights Reserved michael@0: michael@0: Permission to use, copy, modify, and distribute this software and its michael@0: documentation for any purpose and without fee is hereby granted, michael@0: provided that the above copyright notice appear in all copies and that michael@0: both that copyright notice and this permission notice appear in michael@0: supporting documentation, and that the name of Digital not be michael@0: used in advertising or publicity pertaining to distribution of the michael@0: software without specific, written prior permission. michael@0: michael@0: DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING michael@0: ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL michael@0: DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR michael@0: ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, michael@0: WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, michael@0: ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS michael@0: SOFTWARE. michael@0: michael@0: ******************************************************************/ michael@0: /* michael@0: * Copyright © 1998, 2004 Keith Packard michael@0: * Copyright 2007 Red Hat, Inc. michael@0: * michael@0: * Permission to use, copy, modify, distribute, and sell this software and its michael@0: * documentation for any purpose is hereby granted without fee, provided that michael@0: * the above copyright notice appear in all copies and that both that michael@0: * copyright notice and this permission notice appear in supporting michael@0: * documentation, and that the name of Keith Packard not be used in michael@0: * advertising or publicity pertaining to distribution of the software without michael@0: * specific, written prior permission. Keith Packard makes no michael@0: * representations about the suitability of this software for any purpose. It michael@0: * is provided "as is" without express or implied warranty. michael@0: * michael@0: * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, michael@0: * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO michael@0: * EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR michael@0: * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, michael@0: * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER michael@0: * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR michael@0: * PERFORMANCE OF THIS SOFTWARE. michael@0: */ michael@0: michael@0: #ifndef PIXMAN_H__ michael@0: #define PIXMAN_H__ michael@0: michael@0: #ifdef MOZILLA_VERSION michael@0: #include "cairo/pixman-rename.h" michael@0: #endif michael@0: michael@0: michael@0: #include michael@0: michael@0: #ifdef __cplusplus michael@0: #define PIXMAN_BEGIN_DECLS extern "C" { michael@0: #define PIXMAN_END_DECLS } michael@0: #else michael@0: #define PIXMAN_BEGIN_DECLS michael@0: #define PIXMAN_END_DECLS michael@0: #endif michael@0: michael@0: PIXMAN_BEGIN_DECLS michael@0: michael@0: /* michael@0: * Standard integers michael@0: */ michael@0: michael@0: #if !defined (PIXMAN_DONT_DEFINE_STDINT) michael@0: michael@0: #if defined (_SVR4) || defined (SVR4) || defined (__OpenBSD__) || defined (_sgi) || defined (__sun) || defined (sun) || defined (__digital__) || defined (__HP_cc) michael@0: # include michael@0: /* VS 2010 (_MSC_VER 1600) has stdint.h */ michael@0: #elif defined (_MSC_VER) && _MSC_VER < 1600 michael@0: typedef __int8 int8_t; michael@0: typedef unsigned __int8 uint8_t; michael@0: typedef __int16 int16_t; michael@0: typedef unsigned __int16 uint16_t; michael@0: typedef __int32 int32_t; michael@0: typedef unsigned __int32 uint32_t; michael@0: typedef __int64 int64_t; michael@0: typedef unsigned __int64 uint64_t; michael@0: #elif defined (_AIX) michael@0: # include michael@0: #else michael@0: # include michael@0: #endif michael@0: michael@0: #endif michael@0: michael@0: /* michael@0: * Boolean michael@0: */ michael@0: typedef int pixman_bool_t; michael@0: michael@0: /* michael@0: * Fixpoint numbers michael@0: */ michael@0: typedef int64_t pixman_fixed_32_32_t; michael@0: typedef pixman_fixed_32_32_t pixman_fixed_48_16_t; michael@0: typedef uint32_t pixman_fixed_1_31_t; michael@0: typedef uint32_t pixman_fixed_1_16_t; michael@0: typedef int32_t pixman_fixed_16_16_t; michael@0: typedef pixman_fixed_16_16_t pixman_fixed_t; michael@0: michael@0: #define pixman_fixed_e ((pixman_fixed_t) 1) michael@0: #define pixman_fixed_1 (pixman_int_to_fixed(1)) michael@0: #define pixman_fixed_1_minus_e (pixman_fixed_1 - pixman_fixed_e) michael@0: #define pixman_fixed_minus_1 (pixman_int_to_fixed(-1)) michael@0: #define pixman_fixed_to_int(f) ((int) ((f) >> 16)) michael@0: #define pixman_int_to_fixed(i) ((pixman_fixed_t) ((i) << 16)) michael@0: #define pixman_fixed_to_double(f) (double) ((f) / (double) pixman_fixed_1) michael@0: #define pixman_double_to_fixed(d) ((pixman_fixed_t) ((d) * 65536.0)) michael@0: #define pixman_fixed_frac(f) ((f) & pixman_fixed_1_minus_e) michael@0: #define pixman_fixed_floor(f) ((f) & ~pixman_fixed_1_minus_e) michael@0: #define pixman_fixed_ceil(f) pixman_fixed_floor ((f) + pixman_fixed_1_minus_e) michael@0: #define pixman_fixed_fraction(f) ((f) & pixman_fixed_1_minus_e) michael@0: #define pixman_fixed_mod_2(f) ((f) & (pixman_fixed1 | pixman_fixed_1_minus_e)) michael@0: #define pixman_max_fixed_48_16 ((pixman_fixed_48_16_t) 0x7fffffff) michael@0: #define pixman_min_fixed_48_16 (-((pixman_fixed_48_16_t) 1 << 31)) michael@0: michael@0: /* michael@0: * Misc structs michael@0: */ michael@0: typedef struct pixman_color pixman_color_t; michael@0: typedef struct pixman_point_fixed pixman_point_fixed_t; michael@0: typedef struct pixman_line_fixed pixman_line_fixed_t; michael@0: typedef struct pixman_vector pixman_vector_t; michael@0: typedef struct pixman_transform pixman_transform_t; michael@0: michael@0: struct pixman_color michael@0: { michael@0: uint16_t red; michael@0: uint16_t green; michael@0: uint16_t blue; michael@0: uint16_t alpha; michael@0: }; michael@0: michael@0: struct pixman_point_fixed michael@0: { michael@0: pixman_fixed_t x; michael@0: pixman_fixed_t y; michael@0: }; michael@0: michael@0: struct pixman_line_fixed michael@0: { michael@0: pixman_point_fixed_t p1, p2; michael@0: }; michael@0: michael@0: /* michael@0: * Fixed point matrices michael@0: */ michael@0: michael@0: struct pixman_vector michael@0: { michael@0: pixman_fixed_t vector[3]; michael@0: }; michael@0: michael@0: struct pixman_transform michael@0: { michael@0: pixman_fixed_t matrix[3][3]; michael@0: }; michael@0: michael@0: /* forward declaration (sorry) */ michael@0: struct pixman_box16; michael@0: typedef union pixman_image pixman_image_t; michael@0: michael@0: void pixman_transform_init_identity (struct pixman_transform *matrix); michael@0: pixman_bool_t pixman_transform_point_3d (const struct pixman_transform *transform, michael@0: struct pixman_vector *vector); michael@0: pixman_bool_t pixman_transform_point (const struct pixman_transform *transform, michael@0: struct pixman_vector *vector); michael@0: pixman_bool_t pixman_transform_multiply (struct pixman_transform *dst, michael@0: const struct pixman_transform *l, michael@0: const struct pixman_transform *r); michael@0: void pixman_transform_init_scale (struct pixman_transform *t, michael@0: pixman_fixed_t sx, michael@0: pixman_fixed_t sy); michael@0: pixman_bool_t pixman_transform_scale (struct pixman_transform *forward, michael@0: struct pixman_transform *reverse, michael@0: pixman_fixed_t sx, michael@0: pixman_fixed_t sy); michael@0: void pixman_transform_init_rotate (struct pixman_transform *t, michael@0: pixman_fixed_t cos, michael@0: pixman_fixed_t sin); michael@0: pixman_bool_t pixman_transform_rotate (struct pixman_transform *forward, michael@0: struct pixman_transform *reverse, michael@0: pixman_fixed_t c, michael@0: pixman_fixed_t s); michael@0: void pixman_transform_init_translate (struct pixman_transform *t, michael@0: pixman_fixed_t tx, michael@0: pixman_fixed_t ty); michael@0: pixman_bool_t pixman_transform_translate (struct pixman_transform *forward, michael@0: struct pixman_transform *reverse, michael@0: pixman_fixed_t tx, michael@0: pixman_fixed_t ty); michael@0: pixman_bool_t pixman_transform_bounds (const struct pixman_transform *matrix, michael@0: struct pixman_box16 *b); michael@0: pixman_bool_t pixman_transform_invert (struct pixman_transform *dst, michael@0: const struct pixman_transform *src); michael@0: pixman_bool_t pixman_transform_is_identity (const struct pixman_transform *t); michael@0: pixman_bool_t pixman_transform_is_scale (const struct pixman_transform *t); michael@0: pixman_bool_t pixman_transform_is_int_translate (const struct pixman_transform *t); michael@0: pixman_bool_t pixman_transform_is_inverse (const struct pixman_transform *a, michael@0: const struct pixman_transform *b); michael@0: michael@0: /* michael@0: * Floating point matrices michael@0: */ michael@0: typedef struct pixman_f_transform pixman_f_transform_t; michael@0: typedef struct pixman_f_vector pixman_f_vector_t; michael@0: michael@0: struct pixman_f_vector michael@0: { michael@0: double v[3]; michael@0: }; michael@0: michael@0: struct pixman_f_transform michael@0: { michael@0: double m[3][3]; michael@0: }; michael@0: michael@0: pixman_bool_t pixman_transform_from_pixman_f_transform (struct pixman_transform *t, michael@0: const struct pixman_f_transform *ft); michael@0: void pixman_f_transform_from_pixman_transform (struct pixman_f_transform *ft, michael@0: const struct pixman_transform *t); michael@0: pixman_bool_t pixman_f_transform_invert (struct pixman_f_transform *dst, michael@0: const struct pixman_f_transform *src); michael@0: pixman_bool_t pixman_f_transform_point (const struct pixman_f_transform *t, michael@0: struct pixman_f_vector *v); michael@0: void pixman_f_transform_point_3d (const struct pixman_f_transform *t, michael@0: struct pixman_f_vector *v); michael@0: void pixman_f_transform_multiply (struct pixman_f_transform *dst, michael@0: const struct pixman_f_transform *l, michael@0: const struct pixman_f_transform *r); michael@0: void pixman_f_transform_init_scale (struct pixman_f_transform *t, michael@0: double sx, michael@0: double sy); michael@0: pixman_bool_t pixman_f_transform_scale (struct pixman_f_transform *forward, michael@0: struct pixman_f_transform *reverse, michael@0: double sx, michael@0: double sy); michael@0: void pixman_f_transform_init_rotate (struct pixman_f_transform *t, michael@0: double cos, michael@0: double sin); michael@0: pixman_bool_t pixman_f_transform_rotate (struct pixman_f_transform *forward, michael@0: struct pixman_f_transform *reverse, michael@0: double c, michael@0: double s); michael@0: void pixman_f_transform_init_translate (struct pixman_f_transform *t, michael@0: double tx, michael@0: double ty); michael@0: pixman_bool_t pixman_f_transform_translate (struct pixman_f_transform *forward, michael@0: struct pixman_f_transform *reverse, michael@0: double tx, michael@0: double ty); michael@0: pixman_bool_t pixman_f_transform_bounds (const struct pixman_f_transform *t, michael@0: struct pixman_box16 *b); michael@0: void pixman_f_transform_init_identity (struct pixman_f_transform *t); michael@0: michael@0: typedef enum michael@0: { michael@0: PIXMAN_REPEAT_NONE, michael@0: PIXMAN_REPEAT_NORMAL, michael@0: PIXMAN_REPEAT_PAD, michael@0: PIXMAN_REPEAT_REFLECT michael@0: } pixman_repeat_t; michael@0: michael@0: typedef enum michael@0: { michael@0: PIXMAN_FILTER_FAST, michael@0: PIXMAN_FILTER_GOOD, michael@0: PIXMAN_FILTER_BEST, michael@0: PIXMAN_FILTER_NEAREST, michael@0: PIXMAN_FILTER_BILINEAR, michael@0: PIXMAN_FILTER_CONVOLUTION, michael@0: michael@0: /* The SEPARABLE_CONVOLUTION filter takes the following parameters: michael@0: * michael@0: * width: integer given as 16.16 fixpoint number michael@0: * height: integer given as 16.16 fixpoint number michael@0: * x_phase_bits: integer given as 16.16 fixpoint michael@0: * y_phase_bits: integer given as 16.16 fixpoint michael@0: * xtables: (1 << x_phase_bits) tables of size width michael@0: * ytables: (1 << y_phase_bits) tables of size height michael@0: * michael@0: * When sampling at (x, y), the location is first rounded to one of michael@0: * n_x_phases * n_y_phases subpixel positions. These subpixel positions michael@0: * determine an xtable and a ytable to use. michael@0: * michael@0: * Conceptually a width x height matrix is then formed in which each entry michael@0: * is the product of the corresponding entries in the x and y tables. michael@0: * This matrix is then aligned with the image pixels such that its center michael@0: * is as close as possible to the subpixel location chosen earlier. Then michael@0: * the image is convolved with the matrix and the resulting pixel returned. michael@0: */ michael@0: PIXMAN_FILTER_SEPARABLE_CONVOLUTION michael@0: } pixman_filter_t; michael@0: michael@0: typedef enum michael@0: { michael@0: PIXMAN_OP_CLEAR = 0x00, michael@0: PIXMAN_OP_SRC = 0x01, michael@0: PIXMAN_OP_DST = 0x02, michael@0: PIXMAN_OP_OVER = 0x03, michael@0: PIXMAN_OP_OVER_REVERSE = 0x04, michael@0: PIXMAN_OP_IN = 0x05, michael@0: PIXMAN_OP_IN_REVERSE = 0x06, michael@0: PIXMAN_OP_OUT = 0x07, michael@0: PIXMAN_OP_OUT_REVERSE = 0x08, michael@0: PIXMAN_OP_ATOP = 0x09, michael@0: PIXMAN_OP_ATOP_REVERSE = 0x0a, michael@0: PIXMAN_OP_XOR = 0x0b, michael@0: PIXMAN_OP_ADD = 0x0c, michael@0: PIXMAN_OP_SATURATE = 0x0d, michael@0: michael@0: PIXMAN_OP_DISJOINT_CLEAR = 0x10, michael@0: PIXMAN_OP_DISJOINT_SRC = 0x11, michael@0: PIXMAN_OP_DISJOINT_DST = 0x12, michael@0: PIXMAN_OP_DISJOINT_OVER = 0x13, michael@0: PIXMAN_OP_DISJOINT_OVER_REVERSE = 0x14, michael@0: PIXMAN_OP_DISJOINT_IN = 0x15, michael@0: PIXMAN_OP_DISJOINT_IN_REVERSE = 0x16, michael@0: PIXMAN_OP_DISJOINT_OUT = 0x17, michael@0: PIXMAN_OP_DISJOINT_OUT_REVERSE = 0x18, michael@0: PIXMAN_OP_DISJOINT_ATOP = 0x19, michael@0: PIXMAN_OP_DISJOINT_ATOP_REVERSE = 0x1a, michael@0: PIXMAN_OP_DISJOINT_XOR = 0x1b, michael@0: michael@0: PIXMAN_OP_CONJOINT_CLEAR = 0x20, michael@0: PIXMAN_OP_CONJOINT_SRC = 0x21, michael@0: PIXMAN_OP_CONJOINT_DST = 0x22, michael@0: PIXMAN_OP_CONJOINT_OVER = 0x23, michael@0: PIXMAN_OP_CONJOINT_OVER_REVERSE = 0x24, michael@0: PIXMAN_OP_CONJOINT_IN = 0x25, michael@0: PIXMAN_OP_CONJOINT_IN_REVERSE = 0x26, michael@0: PIXMAN_OP_CONJOINT_OUT = 0x27, michael@0: PIXMAN_OP_CONJOINT_OUT_REVERSE = 0x28, michael@0: PIXMAN_OP_CONJOINT_ATOP = 0x29, michael@0: PIXMAN_OP_CONJOINT_ATOP_REVERSE = 0x2a, michael@0: PIXMAN_OP_CONJOINT_XOR = 0x2b, michael@0: michael@0: PIXMAN_OP_MULTIPLY = 0x30, michael@0: PIXMAN_OP_SCREEN = 0x31, michael@0: PIXMAN_OP_OVERLAY = 0x32, michael@0: PIXMAN_OP_DARKEN = 0x33, michael@0: PIXMAN_OP_LIGHTEN = 0x34, michael@0: PIXMAN_OP_COLOR_DODGE = 0x35, michael@0: PIXMAN_OP_COLOR_BURN = 0x36, michael@0: PIXMAN_OP_HARD_LIGHT = 0x37, michael@0: PIXMAN_OP_SOFT_LIGHT = 0x38, michael@0: PIXMAN_OP_DIFFERENCE = 0x39, michael@0: PIXMAN_OP_EXCLUSION = 0x3a, michael@0: PIXMAN_OP_HSL_HUE = 0x3b, michael@0: PIXMAN_OP_HSL_SATURATION = 0x3c, michael@0: PIXMAN_OP_HSL_COLOR = 0x3d, michael@0: PIXMAN_OP_HSL_LUMINOSITY = 0x3e michael@0: michael@0: #ifdef PIXMAN_USE_INTERNAL_API michael@0: , michael@0: PIXMAN_N_OPERATORS, michael@0: PIXMAN_OP_NONE = PIXMAN_N_OPERATORS michael@0: #endif michael@0: } pixman_op_t; michael@0: michael@0: /* michael@0: * Regions michael@0: */ michael@0: typedef struct pixman_region16_data pixman_region16_data_t; michael@0: typedef struct pixman_box16 pixman_box16_t; michael@0: typedef struct pixman_rectangle16 pixman_rectangle16_t; michael@0: typedef struct pixman_region16 pixman_region16_t; michael@0: michael@0: struct pixman_region16_data { michael@0: long size; michael@0: long numRects; michael@0: /* pixman_box16_t rects[size]; in memory but not explicitly declared */ michael@0: }; michael@0: michael@0: struct pixman_rectangle16 michael@0: { michael@0: int16_t x, y; michael@0: uint16_t width, height; michael@0: }; michael@0: michael@0: struct pixman_box16 michael@0: { michael@0: int16_t x1, y1, x2, y2; michael@0: }; michael@0: michael@0: struct pixman_region16 michael@0: { michael@0: pixman_box16_t extents; michael@0: pixman_region16_data_t *data; michael@0: }; michael@0: michael@0: typedef enum michael@0: { michael@0: PIXMAN_REGION_OUT, michael@0: PIXMAN_REGION_IN, michael@0: PIXMAN_REGION_PART michael@0: } pixman_region_overlap_t; michael@0: michael@0: /* This function exists only to make it possible to preserve michael@0: * the X ABI - it should go away at first opportunity. michael@0: */ michael@0: void pixman_region_set_static_pointers (pixman_box16_t *empty_box, michael@0: pixman_region16_data_t *empty_data, michael@0: pixman_region16_data_t *broken_data); michael@0: michael@0: /* creation/destruction */ michael@0: void pixman_region_init (pixman_region16_t *region); michael@0: void pixman_region_init_rect (pixman_region16_t *region, michael@0: int x, michael@0: int y, michael@0: unsigned int width, michael@0: unsigned int height); michael@0: pixman_bool_t pixman_region_init_rects (pixman_region16_t *region, michael@0: const pixman_box16_t *boxes, michael@0: int count); michael@0: void pixman_region_init_with_extents (pixman_region16_t *region, michael@0: pixman_box16_t *extents); michael@0: void pixman_region_init_from_image (pixman_region16_t *region, michael@0: pixman_image_t *image); michael@0: void pixman_region_fini (pixman_region16_t *region); michael@0: michael@0: michael@0: /* manipulation */ michael@0: void pixman_region_translate (pixman_region16_t *region, michael@0: int x, michael@0: int y); michael@0: pixman_bool_t pixman_region_copy (pixman_region16_t *dest, michael@0: pixman_region16_t *source); michael@0: pixman_bool_t pixman_region_intersect (pixman_region16_t *new_reg, michael@0: pixman_region16_t *reg1, michael@0: pixman_region16_t *reg2); michael@0: pixman_bool_t pixman_region_union (pixman_region16_t *new_reg, michael@0: pixman_region16_t *reg1, michael@0: pixman_region16_t *reg2); michael@0: pixman_bool_t pixman_region_union_rect (pixman_region16_t *dest, michael@0: pixman_region16_t *source, michael@0: int x, michael@0: int y, michael@0: unsigned int width, michael@0: unsigned int height); michael@0: pixman_bool_t pixman_region_intersect_rect (pixman_region16_t *dest, michael@0: pixman_region16_t *source, michael@0: int x, michael@0: int y, michael@0: unsigned int width, michael@0: unsigned int height); michael@0: pixman_bool_t pixman_region_subtract (pixman_region16_t *reg_d, michael@0: pixman_region16_t *reg_m, michael@0: pixman_region16_t *reg_s); michael@0: pixman_bool_t pixman_region_inverse (pixman_region16_t *new_reg, michael@0: pixman_region16_t *reg1, michael@0: pixman_box16_t *inv_rect); michael@0: pixman_bool_t pixman_region_contains_point (pixman_region16_t *region, michael@0: int x, michael@0: int y, michael@0: pixman_box16_t *box); michael@0: pixman_region_overlap_t pixman_region_contains_rectangle (pixman_region16_t *region, michael@0: pixman_box16_t *prect); michael@0: pixman_bool_t pixman_region_not_empty (pixman_region16_t *region); michael@0: pixman_box16_t * pixman_region_extents (pixman_region16_t *region); michael@0: int pixman_region_n_rects (pixman_region16_t *region); michael@0: pixman_box16_t * pixman_region_rectangles (pixman_region16_t *region, michael@0: int *n_rects); michael@0: pixman_bool_t pixman_region_equal (pixman_region16_t *region1, michael@0: pixman_region16_t *region2); michael@0: pixman_bool_t pixman_region_selfcheck (pixman_region16_t *region); michael@0: void pixman_region_reset (pixman_region16_t *region, michael@0: pixman_box16_t *box); michael@0: void pixman_region_clear (pixman_region16_t *region); michael@0: /* michael@0: * 32 bit regions michael@0: */ michael@0: typedef struct pixman_region32_data pixman_region32_data_t; michael@0: typedef struct pixman_box32 pixman_box32_t; michael@0: typedef struct pixman_rectangle32 pixman_rectangle32_t; michael@0: typedef struct pixman_region32 pixman_region32_t; michael@0: michael@0: struct pixman_region32_data { michael@0: long size; michael@0: long numRects; michael@0: /* pixman_box32_t rects[size]; in memory but not explicitly declared */ michael@0: }; michael@0: michael@0: struct pixman_rectangle32 michael@0: { michael@0: int32_t x, y; michael@0: uint32_t width, height; michael@0: }; michael@0: michael@0: struct pixman_box32 michael@0: { michael@0: int32_t x1, y1, x2, y2; michael@0: }; michael@0: michael@0: struct pixman_region32 michael@0: { michael@0: pixman_box32_t extents; michael@0: pixman_region32_data_t *data; michael@0: }; michael@0: michael@0: /* creation/destruction */ michael@0: void pixman_region32_init (pixman_region32_t *region); michael@0: void pixman_region32_init_rect (pixman_region32_t *region, michael@0: int x, michael@0: int y, michael@0: unsigned int width, michael@0: unsigned int height); michael@0: pixman_bool_t pixman_region32_init_rects (pixman_region32_t *region, michael@0: const pixman_box32_t *boxes, michael@0: int count); michael@0: void pixman_region32_init_with_extents (pixman_region32_t *region, michael@0: pixman_box32_t *extents); michael@0: void pixman_region32_init_from_image (pixman_region32_t *region, michael@0: pixman_image_t *image); michael@0: void pixman_region32_fini (pixman_region32_t *region); michael@0: michael@0: michael@0: /* manipulation */ michael@0: void pixman_region32_translate (pixman_region32_t *region, michael@0: int x, michael@0: int y); michael@0: pixman_bool_t pixman_region32_copy (pixman_region32_t *dest, michael@0: pixman_region32_t *source); michael@0: pixman_bool_t pixman_region32_intersect (pixman_region32_t *new_reg, michael@0: pixman_region32_t *reg1, michael@0: pixman_region32_t *reg2); michael@0: pixman_bool_t pixman_region32_union (pixman_region32_t *new_reg, michael@0: pixman_region32_t *reg1, michael@0: pixman_region32_t *reg2); michael@0: pixman_bool_t pixman_region32_intersect_rect (pixman_region32_t *dest, michael@0: pixman_region32_t *source, michael@0: int x, michael@0: int y, michael@0: unsigned int width, michael@0: unsigned int height); michael@0: pixman_bool_t pixman_region32_union_rect (pixman_region32_t *dest, michael@0: pixman_region32_t *source, michael@0: int x, michael@0: int y, michael@0: unsigned int width, michael@0: unsigned int height); michael@0: pixman_bool_t pixman_region32_subtract (pixman_region32_t *reg_d, michael@0: pixman_region32_t *reg_m, michael@0: pixman_region32_t *reg_s); michael@0: pixman_bool_t pixman_region32_inverse (pixman_region32_t *new_reg, michael@0: pixman_region32_t *reg1, michael@0: pixman_box32_t *inv_rect); michael@0: pixman_bool_t pixman_region32_contains_point (pixman_region32_t *region, michael@0: int x, michael@0: int y, michael@0: pixman_box32_t *box); michael@0: pixman_region_overlap_t pixman_region32_contains_rectangle (pixman_region32_t *region, michael@0: pixman_box32_t *prect); michael@0: pixman_bool_t pixman_region32_not_empty (pixman_region32_t *region); michael@0: pixman_box32_t * pixman_region32_extents (pixman_region32_t *region); michael@0: int pixman_region32_n_rects (pixman_region32_t *region); michael@0: pixman_box32_t * pixman_region32_rectangles (pixman_region32_t *region, michael@0: int *n_rects); michael@0: pixman_bool_t pixman_region32_equal (pixman_region32_t *region1, michael@0: pixman_region32_t *region2); michael@0: pixman_bool_t pixman_region32_selfcheck (pixman_region32_t *region); michael@0: void pixman_region32_reset (pixman_region32_t *region, michael@0: pixman_box32_t *box); michael@0: void pixman_region32_clear (pixman_region32_t *region); michael@0: michael@0: michael@0: /* Copy / Fill / Misc */ michael@0: pixman_bool_t pixman_blt (uint32_t *src_bits, michael@0: uint32_t *dst_bits, michael@0: int src_stride, michael@0: int dst_stride, michael@0: int src_bpp, michael@0: int dst_bpp, michael@0: int src_x, michael@0: int src_y, michael@0: int dest_x, michael@0: int dest_y, michael@0: int width, michael@0: int height); michael@0: pixman_bool_t pixman_fill (uint32_t *bits, michael@0: int stride, michael@0: int bpp, michael@0: int x, michael@0: int y, michael@0: int width, michael@0: int height, michael@0: uint32_t _xor); michael@0: michael@0: int pixman_version (void); michael@0: const char* pixman_version_string (void); michael@0: michael@0: /* michael@0: * Images michael@0: */ michael@0: typedef struct pixman_indexed pixman_indexed_t; michael@0: typedef struct pixman_gradient_stop pixman_gradient_stop_t; michael@0: michael@0: typedef uint32_t (* pixman_read_memory_func_t) (const void *src, int size); michael@0: typedef void (* pixman_write_memory_func_t) (void *dst, uint32_t value, int size); michael@0: michael@0: typedef void (* pixman_image_destroy_func_t) (pixman_image_t *image, void *data); michael@0: michael@0: struct pixman_gradient_stop { michael@0: pixman_fixed_t x; michael@0: pixman_color_t color; michael@0: }; michael@0: michael@0: #define PIXMAN_MAX_INDEXED 256 /* XXX depth must be <= 8 */ michael@0: michael@0: #if PIXMAN_MAX_INDEXED <= 256 michael@0: typedef uint8_t pixman_index_type; michael@0: #endif michael@0: michael@0: struct pixman_indexed michael@0: { michael@0: pixman_bool_t color; michael@0: uint32_t rgba[PIXMAN_MAX_INDEXED]; michael@0: pixman_index_type ent[32768]; michael@0: }; michael@0: michael@0: /* michael@0: * While the protocol is generous in format support, the michael@0: * sample implementation allows only packed RGB and GBR michael@0: * representations for data to simplify software rendering, michael@0: */ michael@0: #define PIXMAN_FORMAT(bpp,type,a,r,g,b) (((bpp) << 24) | \ michael@0: ((type) << 16) | \ michael@0: ((a) << 12) | \ michael@0: ((r) << 8) | \ michael@0: ((g) << 4) | \ michael@0: ((b))) michael@0: michael@0: #define PIXMAN_FORMAT_BPP(f) (((f) >> 24) ) michael@0: #define PIXMAN_FORMAT_TYPE(f) (((f) >> 16) & 0xff) michael@0: #define PIXMAN_FORMAT_A(f) (((f) >> 12) & 0x0f) michael@0: #define PIXMAN_FORMAT_R(f) (((f) >> 8) & 0x0f) michael@0: #define PIXMAN_FORMAT_G(f) (((f) >> 4) & 0x0f) michael@0: #define PIXMAN_FORMAT_B(f) (((f) ) & 0x0f) michael@0: #define PIXMAN_FORMAT_RGB(f) (((f) ) & 0xfff) michael@0: #define PIXMAN_FORMAT_VIS(f) (((f) ) & 0xffff) michael@0: #define PIXMAN_FORMAT_DEPTH(f) (PIXMAN_FORMAT_A(f) + \ michael@0: PIXMAN_FORMAT_R(f) + \ michael@0: PIXMAN_FORMAT_G(f) + \ michael@0: PIXMAN_FORMAT_B(f)) michael@0: michael@0: #define PIXMAN_TYPE_OTHER 0 michael@0: #define PIXMAN_TYPE_A 1 michael@0: #define PIXMAN_TYPE_ARGB 2 michael@0: #define PIXMAN_TYPE_ABGR 3 michael@0: #define PIXMAN_TYPE_COLOR 4 michael@0: #define PIXMAN_TYPE_GRAY 5 michael@0: #define PIXMAN_TYPE_YUY2 6 michael@0: #define PIXMAN_TYPE_YV12 7 michael@0: #define PIXMAN_TYPE_BGRA 8 michael@0: #define PIXMAN_TYPE_RGBA 9 michael@0: #define PIXMAN_TYPE_ARGB_SRGB 10 michael@0: michael@0: #define PIXMAN_FORMAT_COLOR(f) \ michael@0: (PIXMAN_FORMAT_TYPE(f) == PIXMAN_TYPE_ARGB || \ michael@0: PIXMAN_FORMAT_TYPE(f) == PIXMAN_TYPE_ABGR || \ michael@0: PIXMAN_FORMAT_TYPE(f) == PIXMAN_TYPE_BGRA || \ michael@0: PIXMAN_FORMAT_TYPE(f) == PIXMAN_TYPE_RGBA) michael@0: michael@0: /* 32bpp formats */ michael@0: typedef enum { michael@0: PIXMAN_a8r8g8b8 = PIXMAN_FORMAT(32,PIXMAN_TYPE_ARGB,8,8,8,8), michael@0: PIXMAN_x8r8g8b8 = PIXMAN_FORMAT(32,PIXMAN_TYPE_ARGB,0,8,8,8), michael@0: PIXMAN_a8b8g8r8 = PIXMAN_FORMAT(32,PIXMAN_TYPE_ABGR,8,8,8,8), michael@0: PIXMAN_x8b8g8r8 = PIXMAN_FORMAT(32,PIXMAN_TYPE_ABGR,0,8,8,8), michael@0: PIXMAN_b8g8r8a8 = PIXMAN_FORMAT(32,PIXMAN_TYPE_BGRA,8,8,8,8), michael@0: PIXMAN_b8g8r8x8 = PIXMAN_FORMAT(32,PIXMAN_TYPE_BGRA,0,8,8,8), michael@0: PIXMAN_r8g8b8a8 = PIXMAN_FORMAT(32,PIXMAN_TYPE_RGBA,8,8,8,8), michael@0: PIXMAN_r8g8b8x8 = PIXMAN_FORMAT(32,PIXMAN_TYPE_RGBA,0,8,8,8), michael@0: PIXMAN_x14r6g6b6 = PIXMAN_FORMAT(32,PIXMAN_TYPE_ARGB,0,6,6,6), michael@0: PIXMAN_x2r10g10b10 = PIXMAN_FORMAT(32,PIXMAN_TYPE_ARGB,0,10,10,10), michael@0: PIXMAN_a2r10g10b10 = PIXMAN_FORMAT(32,PIXMAN_TYPE_ARGB,2,10,10,10), michael@0: PIXMAN_x2b10g10r10 = PIXMAN_FORMAT(32,PIXMAN_TYPE_ABGR,0,10,10,10), michael@0: PIXMAN_a2b10g10r10 = PIXMAN_FORMAT(32,PIXMAN_TYPE_ABGR,2,10,10,10), michael@0: michael@0: /* sRGB formats */ michael@0: PIXMAN_a8r8g8b8_sRGB = PIXMAN_FORMAT(32,PIXMAN_TYPE_ARGB_SRGB,8,8,8,8), michael@0: michael@0: /* 24bpp formats */ michael@0: PIXMAN_r8g8b8 = PIXMAN_FORMAT(24,PIXMAN_TYPE_ARGB,0,8,8,8), michael@0: PIXMAN_b8g8r8 = PIXMAN_FORMAT(24,PIXMAN_TYPE_ABGR,0,8,8,8), michael@0: michael@0: /* 16bpp formats */ michael@0: PIXMAN_r5g6b5 = PIXMAN_FORMAT(16,PIXMAN_TYPE_ARGB,0,5,6,5), michael@0: PIXMAN_b5g6r5 = PIXMAN_FORMAT(16,PIXMAN_TYPE_ABGR,0,5,6,5), michael@0: michael@0: PIXMAN_a1r5g5b5 = PIXMAN_FORMAT(16,PIXMAN_TYPE_ARGB,1,5,5,5), michael@0: PIXMAN_x1r5g5b5 = PIXMAN_FORMAT(16,PIXMAN_TYPE_ARGB,0,5,5,5), michael@0: PIXMAN_a1b5g5r5 = PIXMAN_FORMAT(16,PIXMAN_TYPE_ABGR,1,5,5,5), michael@0: PIXMAN_x1b5g5r5 = PIXMAN_FORMAT(16,PIXMAN_TYPE_ABGR,0,5,5,5), michael@0: PIXMAN_a4r4g4b4 = PIXMAN_FORMAT(16,PIXMAN_TYPE_ARGB,4,4,4,4), michael@0: PIXMAN_x4r4g4b4 = PIXMAN_FORMAT(16,PIXMAN_TYPE_ARGB,0,4,4,4), michael@0: PIXMAN_a4b4g4r4 = PIXMAN_FORMAT(16,PIXMAN_TYPE_ABGR,4,4,4,4), michael@0: PIXMAN_x4b4g4r4 = PIXMAN_FORMAT(16,PIXMAN_TYPE_ABGR,0,4,4,4), michael@0: michael@0: /* 8bpp formats */ michael@0: PIXMAN_a8 = PIXMAN_FORMAT(8,PIXMAN_TYPE_A,8,0,0,0), michael@0: PIXMAN_r3g3b2 = PIXMAN_FORMAT(8,PIXMAN_TYPE_ARGB,0,3,3,2), michael@0: PIXMAN_b2g3r3 = PIXMAN_FORMAT(8,PIXMAN_TYPE_ABGR,0,3,3,2), michael@0: PIXMAN_a2r2g2b2 = PIXMAN_FORMAT(8,PIXMAN_TYPE_ARGB,2,2,2,2), michael@0: PIXMAN_a2b2g2r2 = PIXMAN_FORMAT(8,PIXMAN_TYPE_ABGR,2,2,2,2), michael@0: michael@0: PIXMAN_c8 = PIXMAN_FORMAT(8,PIXMAN_TYPE_COLOR,0,0,0,0), michael@0: PIXMAN_g8 = PIXMAN_FORMAT(8,PIXMAN_TYPE_GRAY,0,0,0,0), michael@0: michael@0: PIXMAN_x4a4 = PIXMAN_FORMAT(8,PIXMAN_TYPE_A,4,0,0,0), michael@0: michael@0: PIXMAN_x4c4 = PIXMAN_FORMAT(8,PIXMAN_TYPE_COLOR,0,0,0,0), michael@0: PIXMAN_x4g4 = PIXMAN_FORMAT(8,PIXMAN_TYPE_GRAY,0,0,0,0), michael@0: michael@0: /* 4bpp formats */ michael@0: PIXMAN_a4 = PIXMAN_FORMAT(4,PIXMAN_TYPE_A,4,0,0,0), michael@0: PIXMAN_r1g2b1 = PIXMAN_FORMAT(4,PIXMAN_TYPE_ARGB,0,1,2,1), michael@0: PIXMAN_b1g2r1 = PIXMAN_FORMAT(4,PIXMAN_TYPE_ABGR,0,1,2,1), michael@0: PIXMAN_a1r1g1b1 = PIXMAN_FORMAT(4,PIXMAN_TYPE_ARGB,1,1,1,1), michael@0: PIXMAN_a1b1g1r1 = PIXMAN_FORMAT(4,PIXMAN_TYPE_ABGR,1,1,1,1), michael@0: michael@0: PIXMAN_c4 = PIXMAN_FORMAT(4,PIXMAN_TYPE_COLOR,0,0,0,0), michael@0: PIXMAN_g4 = PIXMAN_FORMAT(4,PIXMAN_TYPE_GRAY,0,0,0,0), michael@0: michael@0: /* 1bpp formats */ michael@0: PIXMAN_a1 = PIXMAN_FORMAT(1,PIXMAN_TYPE_A,1,0,0,0), michael@0: michael@0: PIXMAN_g1 = PIXMAN_FORMAT(1,PIXMAN_TYPE_GRAY,0,0,0,0), michael@0: michael@0: /* YUV formats */ michael@0: PIXMAN_yuy2 = PIXMAN_FORMAT(16,PIXMAN_TYPE_YUY2,0,0,0,0), michael@0: PIXMAN_yv12 = PIXMAN_FORMAT(12,PIXMAN_TYPE_YV12,0,0,0,0) michael@0: } pixman_format_code_t; michael@0: michael@0: /* Querying supported format values. */ michael@0: pixman_bool_t pixman_format_supported_destination (pixman_format_code_t format); michael@0: pixman_bool_t pixman_format_supported_source (pixman_format_code_t format); michael@0: michael@0: /* Constructors */ michael@0: pixman_image_t *pixman_image_create_solid_fill (const pixman_color_t *color); michael@0: pixman_image_t *pixman_image_create_linear_gradient (const pixman_point_fixed_t *p1, michael@0: const pixman_point_fixed_t *p2, michael@0: const pixman_gradient_stop_t *stops, michael@0: int n_stops); michael@0: pixman_image_t *pixman_image_create_radial_gradient (const pixman_point_fixed_t *inner, michael@0: const pixman_point_fixed_t *outer, michael@0: pixman_fixed_t inner_radius, michael@0: pixman_fixed_t outer_radius, michael@0: const pixman_gradient_stop_t *stops, michael@0: int n_stops); michael@0: pixman_image_t *pixman_image_create_conical_gradient (const pixman_point_fixed_t *center, michael@0: pixman_fixed_t angle, michael@0: const pixman_gradient_stop_t *stops, michael@0: int n_stops); michael@0: pixman_image_t *pixman_image_create_bits (pixman_format_code_t format, michael@0: int width, michael@0: int height, michael@0: uint32_t *bits, michael@0: int rowstride_bytes); michael@0: pixman_image_t *pixman_image_create_bits_no_clear (pixman_format_code_t format, michael@0: int width, michael@0: int height, michael@0: uint32_t * bits, michael@0: int rowstride_bytes); michael@0: michael@0: /* Destructor */ michael@0: pixman_image_t *pixman_image_ref (pixman_image_t *image); michael@0: pixman_bool_t pixman_image_unref (pixman_image_t *image); michael@0: michael@0: void pixman_image_set_destroy_function (pixman_image_t *image, michael@0: pixman_image_destroy_func_t function, michael@0: void *data); michael@0: void * pixman_image_get_destroy_data (pixman_image_t *image); michael@0: michael@0: /* Set properties */ michael@0: pixman_bool_t pixman_image_set_clip_region (pixman_image_t *image, michael@0: pixman_region16_t *region); michael@0: pixman_bool_t pixman_image_set_clip_region32 (pixman_image_t *image, michael@0: pixman_region32_t *region); michael@0: void pixman_image_set_has_client_clip (pixman_image_t *image, michael@0: pixman_bool_t clien_clip); michael@0: pixman_bool_t pixman_image_set_transform (pixman_image_t *image, michael@0: const pixman_transform_t *transform); michael@0: void pixman_image_set_repeat (pixman_image_t *image, michael@0: pixman_repeat_t repeat); michael@0: pixman_bool_t pixman_image_set_filter (pixman_image_t *image, michael@0: pixman_filter_t filter, michael@0: const pixman_fixed_t *filter_params, michael@0: int n_filter_params); michael@0: void pixman_image_set_source_clipping (pixman_image_t *image, michael@0: pixman_bool_t source_clipping); michael@0: void pixman_image_set_alpha_map (pixman_image_t *image, michael@0: pixman_image_t *alpha_map, michael@0: int16_t x, michael@0: int16_t y); michael@0: void pixman_image_set_component_alpha (pixman_image_t *image, michael@0: pixman_bool_t component_alpha); michael@0: pixman_bool_t pixman_image_get_component_alpha (pixman_image_t *image); michael@0: void pixman_image_set_accessors (pixman_image_t *image, michael@0: pixman_read_memory_func_t read_func, michael@0: pixman_write_memory_func_t write_func); michael@0: void pixman_image_set_indexed (pixman_image_t *image, michael@0: const pixman_indexed_t *indexed); michael@0: uint32_t *pixman_image_get_data (pixman_image_t *image); michael@0: int pixman_image_get_width (pixman_image_t *image); michael@0: int pixman_image_get_height (pixman_image_t *image); michael@0: int pixman_image_get_stride (pixman_image_t *image); /* in bytes */ michael@0: int pixman_image_get_depth (pixman_image_t *image); michael@0: pixman_format_code_t pixman_image_get_format (pixman_image_t *image); michael@0: michael@0: typedef enum michael@0: { michael@0: PIXMAN_KERNEL_IMPULSE, michael@0: PIXMAN_KERNEL_BOX, michael@0: PIXMAN_KERNEL_LINEAR, michael@0: PIXMAN_KERNEL_CUBIC, michael@0: PIXMAN_KERNEL_GAUSSIAN, michael@0: PIXMAN_KERNEL_LANCZOS2, michael@0: PIXMAN_KERNEL_LANCZOS3, michael@0: PIXMAN_KERNEL_LANCZOS3_STRETCHED /* Jim Blinn's 'nice' filter */ michael@0: } pixman_kernel_t; michael@0: michael@0: /* Create the parameter list for a SEPARABLE_CONVOLUTION filter michael@0: * with the given kernels and scale parameters. michael@0: */ michael@0: pixman_fixed_t * michael@0: pixman_filter_create_separable_convolution (int *n_values, michael@0: pixman_fixed_t scale_x, michael@0: pixman_fixed_t scale_y, michael@0: pixman_kernel_t reconstruct_x, michael@0: pixman_kernel_t reconstruct_y, michael@0: pixman_kernel_t sample_x, michael@0: pixman_kernel_t sample_y, michael@0: int subsample_bits_x, michael@0: int subsample_bits_y); michael@0: michael@0: pixman_bool_t pixman_image_fill_rectangles (pixman_op_t op, michael@0: pixman_image_t *image, michael@0: const pixman_color_t *color, michael@0: int n_rects, michael@0: const pixman_rectangle16_t *rects); michael@0: pixman_bool_t pixman_image_fill_boxes (pixman_op_t op, michael@0: pixman_image_t *dest, michael@0: const pixman_color_t *color, michael@0: int n_boxes, michael@0: const pixman_box32_t *boxes); michael@0: michael@0: /* Composite */ michael@0: pixman_bool_t pixman_compute_composite_region (pixman_region16_t *region, michael@0: pixman_image_t *src_image, michael@0: pixman_image_t *mask_image, michael@0: pixman_image_t *dest_image, michael@0: int16_t src_x, michael@0: int16_t src_y, michael@0: int16_t mask_x, michael@0: int16_t mask_y, michael@0: int16_t dest_x, michael@0: int16_t dest_y, michael@0: uint16_t width, michael@0: uint16_t height); michael@0: void pixman_image_composite (pixman_op_t op, michael@0: pixman_image_t *src, michael@0: pixman_image_t *mask, michael@0: pixman_image_t *dest, michael@0: int16_t src_x, michael@0: int16_t src_y, michael@0: int16_t mask_x, michael@0: int16_t mask_y, michael@0: int16_t dest_x, michael@0: int16_t dest_y, michael@0: uint16_t width, michael@0: uint16_t height); michael@0: void pixman_image_composite32 (pixman_op_t op, michael@0: pixman_image_t *src, michael@0: pixman_image_t *mask, michael@0: pixman_image_t *dest, michael@0: int32_t src_x, michael@0: int32_t src_y, michael@0: int32_t mask_x, michael@0: int32_t mask_y, michael@0: int32_t dest_x, michael@0: int32_t dest_y, michael@0: int32_t width, michael@0: int32_t height); michael@0: michael@0: /* Executive Summary: This function is a no-op that only exists michael@0: * for historical reasons. michael@0: * michael@0: * There used to be a bug in the X server where it would rely on michael@0: * out-of-bounds accesses when it was asked to composite with a michael@0: * window as the source. It would create a pixman image pointing michael@0: * to some bogus position in memory, but then set a clip region michael@0: * to the position where the actual bits were. michael@0: * michael@0: * Due to a bug in old versions of pixman, where it would not clip michael@0: * against the image bounds when a clip region was set, this would michael@0: * actually work. So when the pixman bug was fixed, a workaround was michael@0: * added to allow certain out-of-bound accesses. This function disabled michael@0: * those workarounds. michael@0: * michael@0: * Since 0.21.2, pixman doesn't do these workarounds anymore, so now this michael@0: * function is a no-op. michael@0: */ michael@0: void pixman_disable_out_of_bounds_workaround (void); michael@0: michael@0: /* michael@0: * Glyphs michael@0: */ michael@0: typedef struct pixman_glyph_cache_t pixman_glyph_cache_t; michael@0: typedef struct michael@0: { michael@0: int x, y; michael@0: const void *glyph; michael@0: } pixman_glyph_t; michael@0: michael@0: pixman_glyph_cache_t *pixman_glyph_cache_create (void); michael@0: void pixman_glyph_cache_destroy (pixman_glyph_cache_t *cache); michael@0: void pixman_glyph_cache_freeze (pixman_glyph_cache_t *cache); michael@0: void pixman_glyph_cache_thaw (pixman_glyph_cache_t *cache); michael@0: const void * pixman_glyph_cache_lookup (pixman_glyph_cache_t *cache, michael@0: void *font_key, michael@0: void *glyph_key); michael@0: const void * pixman_glyph_cache_insert (pixman_glyph_cache_t *cache, michael@0: void *font_key, michael@0: void *glyph_key, michael@0: int origin_x, michael@0: int origin_y, michael@0: pixman_image_t *glyph_image); michael@0: void pixman_glyph_cache_remove (pixman_glyph_cache_t *cache, michael@0: void *font_key, michael@0: void *glyph_key); michael@0: void pixman_glyph_get_extents (pixman_glyph_cache_t *cache, michael@0: int n_glyphs, michael@0: pixman_glyph_t *glyphs, michael@0: pixman_box32_t *extents); michael@0: pixman_format_code_t pixman_glyph_get_mask_format (pixman_glyph_cache_t *cache, michael@0: int n_glyphs, michael@0: const pixman_glyph_t *glyphs); michael@0: void pixman_composite_glyphs (pixman_op_t op, michael@0: pixman_image_t *src, michael@0: pixman_image_t *dest, michael@0: pixman_format_code_t mask_format, michael@0: int32_t src_x, michael@0: int32_t src_y, michael@0: int32_t mask_x, michael@0: int32_t mask_y, michael@0: int32_t dest_x, michael@0: int32_t dest_y, michael@0: int32_t width, michael@0: int32_t height, michael@0: pixman_glyph_cache_t *cache, michael@0: int n_glyphs, michael@0: const pixman_glyph_t *glyphs); michael@0: void pixman_composite_glyphs_no_mask (pixman_op_t op, michael@0: pixman_image_t *src, michael@0: pixman_image_t *dest, michael@0: int32_t src_x, michael@0: int32_t src_y, michael@0: int32_t dest_x, michael@0: int32_t dest_y, michael@0: pixman_glyph_cache_t *cache, michael@0: int n_glyphs, michael@0: const pixman_glyph_t *glyphs); michael@0: michael@0: /* michael@0: * Trapezoids michael@0: */ michael@0: typedef struct pixman_edge pixman_edge_t; michael@0: typedef struct pixman_trapezoid pixman_trapezoid_t; michael@0: typedef struct pixman_trap pixman_trap_t; michael@0: typedef struct pixman_span_fix pixman_span_fix_t; michael@0: typedef struct pixman_triangle pixman_triangle_t; michael@0: michael@0: /* michael@0: * An edge structure. This represents a single polygon edge michael@0: * and can be quickly stepped across small or large gaps in the michael@0: * sample grid michael@0: */ michael@0: struct pixman_edge michael@0: { michael@0: pixman_fixed_t x; michael@0: pixman_fixed_t e; michael@0: pixman_fixed_t stepx; michael@0: pixman_fixed_t signdx; michael@0: pixman_fixed_t dy; michael@0: pixman_fixed_t dx; michael@0: michael@0: pixman_fixed_t stepx_small; michael@0: pixman_fixed_t stepx_big; michael@0: pixman_fixed_t dx_small; michael@0: pixman_fixed_t dx_big; michael@0: }; michael@0: michael@0: struct pixman_trapezoid michael@0: { michael@0: pixman_fixed_t top, bottom; michael@0: pixman_line_fixed_t left, right; michael@0: }; michael@0: michael@0: struct pixman_triangle michael@0: { michael@0: pixman_point_fixed_t p1, p2, p3; michael@0: }; michael@0: michael@0: /* whether 't' is a well defined not obviously empty trapezoid */ michael@0: #define pixman_trapezoid_valid(t) \ michael@0: ((t)->left.p1.y != (t)->left.p2.y && \ michael@0: (t)->right.p1.y != (t)->right.p2.y && \ michael@0: (int) ((t)->bottom - (t)->top) > 0) michael@0: michael@0: struct pixman_span_fix michael@0: { michael@0: pixman_fixed_t l, r, y; michael@0: }; michael@0: michael@0: struct pixman_trap michael@0: { michael@0: pixman_span_fix_t top, bot; michael@0: }; michael@0: michael@0: pixman_fixed_t pixman_sample_ceil_y (pixman_fixed_t y, michael@0: int bpp); michael@0: pixman_fixed_t pixman_sample_floor_y (pixman_fixed_t y, michael@0: int bpp); michael@0: void pixman_edge_step (pixman_edge_t *e, michael@0: int n); michael@0: void pixman_edge_init (pixman_edge_t *e, michael@0: int bpp, michael@0: pixman_fixed_t y_start, michael@0: pixman_fixed_t x_top, michael@0: pixman_fixed_t y_top, michael@0: pixman_fixed_t x_bot, michael@0: pixman_fixed_t y_bot); michael@0: void pixman_line_fixed_edge_init (pixman_edge_t *e, michael@0: int bpp, michael@0: pixman_fixed_t y, michael@0: const pixman_line_fixed_t *line, michael@0: int x_off, michael@0: int y_off); michael@0: void pixman_rasterize_edges (pixman_image_t *image, michael@0: pixman_edge_t *l, michael@0: pixman_edge_t *r, michael@0: pixman_fixed_t t, michael@0: pixman_fixed_t b); michael@0: void pixman_add_traps (pixman_image_t *image, michael@0: int16_t x_off, michael@0: int16_t y_off, michael@0: int ntrap, michael@0: const pixman_trap_t *traps); michael@0: void pixman_add_trapezoids (pixman_image_t *image, michael@0: int16_t x_off, michael@0: int y_off, michael@0: int ntraps, michael@0: const pixman_trapezoid_t *traps); michael@0: void pixman_rasterize_trapezoid (pixman_image_t *image, michael@0: const pixman_trapezoid_t *trap, michael@0: int x_off, michael@0: int y_off); michael@0: void pixman_composite_trapezoids (pixman_op_t op, michael@0: pixman_image_t * src, michael@0: pixman_image_t * dst, michael@0: pixman_format_code_t mask_format, michael@0: int x_src, michael@0: int y_src, michael@0: int x_dst, michael@0: int y_dst, michael@0: int n_traps, michael@0: const pixman_trapezoid_t * traps); michael@0: void pixman_composite_triangles (pixman_op_t op, michael@0: pixman_image_t * src, michael@0: pixman_image_t * dst, michael@0: pixman_format_code_t mask_format, michael@0: int x_src, michael@0: int y_src, michael@0: int x_dst, michael@0: int y_dst, michael@0: int n_tris, michael@0: const pixman_triangle_t * tris); michael@0: void pixman_add_triangles (pixman_image_t *image, michael@0: int32_t x_off, michael@0: int32_t y_off, michael@0: int n_tris, michael@0: const pixman_triangle_t *tris); michael@0: michael@0: PIXMAN_END_DECLS michael@0: michael@0: #endif /* PIXMAN_H__ */