| /*********************************************************** |
| |
| 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__ |
| |
| /* |
| * Standard integers |
| */ |
| #if defined (__SVR4) && defined (__sun) |
| # include <sys/int_types.h> |
| # include <stdint.h> |
| #elif defined (__OpenBSD__) |
| # include <inttypes.h> |
| #elif defined (_MSC_VER) |
| 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; |
| #else |
| # include <stdint.h> |
| #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_to_int(f) ((int) ((f) >> 16)) |
| #define pixman_int_to_fixed(i) ((pixman_fixed_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; |
| }; |
| |
| struct pixman_vector |
| { |
| pixman_fixed_t vector[3]; |
| }; |
| |
| struct pixman_transform |
| { |
| pixman_fixed_t matrix[3][3]; |
| }; |
| |
| pixman_bool_t pixman_transform_point_3d (pixman_transform_t *transform, |
| pixman_vector_t *vector); |
| |
| /* Don't blame me, blame XRender */ |
| typedef enum |
| { |
| PIXMAN_REPEAT_NONE, |
| PIXMAN_REPEAT_NORMAL, |
| PIXMAN_REPEAT_PAD, |
| PIXMAN_REPEAT_REFLECT |
| } pixman_repeat_t; |
| |
| typedef enum |
| { |
| PIXMAN_FILTER_FAST, |
| PIXMAN_FILTER_GOOD, |
| PIXMAN_FILTER_BEST, |
| PIXMAN_FILTER_NEAREST, |
| PIXMAN_FILTER_BILINEAR, |
| PIXMAN_FILTER_CONVOLUTION |
| } pixman_filter_t; |
| |
| typedef enum |
| { |
| PIXMAN_OP_CLEAR, |
| PIXMAN_OP_SRC, |
| PIXMAN_OP_DST, |
| PIXMAN_OP_OVER, |
| PIXMAN_OP_OVER_REVERSE, |
| PIXMAN_OP_IN, |
| PIXMAN_OP_IN_REVERSE, |
| PIXMAN_OP_OUT, |
| PIXMAN_OP_OUT_REVERSE, |
| PIXMAN_OP_ATOP, |
| PIXMAN_OP_ATOP_REVERSE, |
| PIXMAN_OP_XOR, |
| PIXMAN_OP_ADD, |
| PIXMAN_OP_SATURATE |
| } 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. |
| */ |
| 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 */ |
| void pixman_region_init (pixman_region16_t *region); |
| void pixman_region_init_rect (pixman_region16_t *region, |
| int x, |
| int y, |
| unsigned int width, |
| unsigned int height); |
| void pixman_region_init_with_extents (pixman_region16_t *region, |
| pixman_box16_t *extents); |
| void pixman_region_fini (pixman_region16_t *region); |
| |
| /* manipulation */ |
| void pixman_region_translate (pixman_region16_t *region, |
| int x, |
| int y); |
| pixman_bool_t pixman_region_copy (pixman_region16_t *dest, |
| pixman_region16_t *source); |
| pixman_bool_t pixman_region_intersect (pixman_region16_t *newReg, |
| pixman_region16_t *reg1, |
| pixman_region16_t *reg2); |
| pixman_bool_t pixman_region_union (pixman_region16_t *newReg, |
| pixman_region16_t *reg1, |
| pixman_region16_t *reg2); |
| pixman_bool_t pixman_region_union_rect (pixman_region16_t *dest, |
| pixman_region16_t *source, |
| int x, |
| int y, |
| unsigned int width, |
| unsigned int height); |
| pixman_bool_t pixman_region_subtract (pixman_region16_t *regD, |
| pixman_region16_t *regM, |
| pixman_region16_t *regS); |
| pixman_bool_t pixman_region_inverse (pixman_region16_t *newReg, |
| pixman_region16_t *reg1, |
| pixman_box16_t *invRect); |
| pixman_bool_t pixman_region_contains_point (pixman_region16_t *region, int x, int y, pixman_box16_t *box); |
| pixman_region_overlap_t pixman_region_contains_rectangle (pixman_region16_t *pixman_region16_t, pixman_box16_t *prect); |
| pixman_bool_t pixman_region_not_empty (pixman_region16_t *region); |
| pixman_box16_t * pixman_region_extents (pixman_region16_t *region); |
| int pixman_region_n_rects (pixman_region16_t *region); |
| pixman_box16_t * pixman_region_rectangles (pixman_region16_t *region, |
| int *n_rects); |
| pixman_bool_t pixman_region_equal (pixman_region16_t *region1, |
| pixman_region16_t *region2); |
| pixman_bool_t pixman_region_selfcheck (pixman_region16_t *region); |
| void pixman_region_reset(pixman_region16_t *region, pixman_box16_t *box); |
| pixman_bool_t pixman_region_init_rects (pixman_region16_t *region, |
| pixman_box16_t *boxes, int count); |
| |
| /* Copy / Fill */ |
| 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 dst_x, int dst_y, |
| int width, int height); |
| pixman_bool_t pixman_fill (uint32_t *bits, |
| int stride, |
| int bpp, |
| int x, |
| int y, |
| int width, |
| int height, |
| uint32_t xor); |
| /* |
| * Images |
| */ |
| typedef union pixman_image pixman_image_t; |
| 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); |
| |
| 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_BPP(f) (((f) >> 24) ) |
| #define PIXMAN_FORMAT_TYPE(f) (((f) >> 16) & 0xff) |
| #define PIXMAN_FORMAT_A(f) (((f) >> 12) & 0x0f) |
| #define PIXMAN_FORMAT_R(f) (((f) >> 8) & 0x0f) |
| #define PIXMAN_FORMAT_G(f) (((f) >> 4) & 0x0f) |
| #define PIXMAN_FORMAT_B(f) (((f) ) & 0x0f) |
| #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_FORMAT_COLOR(f) (PIXMAN_FORMAT_TYPE(f) & 2) |
| |
| /* 32bpp formats */ |
| typedef enum { |
| 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), |
| |
| /* 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), |
| } pixman_format_code_t; |
| |
| /* Constructors */ |
| pixman_image_t *pixman_image_create_solid_fill (pixman_color_t *color); |
| pixman_image_t *pixman_image_create_linear_gradient (pixman_point_fixed_t *p1, |
| pixman_point_fixed_t *p2, |
| const pixman_gradient_stop_t *stops, |
| int n_stops); |
| pixman_image_t *pixman_image_create_radial_gradient (pixman_point_fixed_t *inner, |
| 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_image_t *pixman_image_create_conical_gradient (pixman_point_fixed_t *center, |
| pixman_fixed_t angle, |
| const pixman_gradient_stop_t *stops, |
| int n_stops); |
| pixman_image_t *pixman_image_create_bits (pixman_format_code_t format, |
| int width, |
| int height, |
| uint32_t *bits, |
| int rowstride_bytes); |
| |
| /* Destructor */ |
| pixman_image_t *pixman_image_ref (pixman_image_t *image); |
| pixman_bool_t pixman_image_unref (pixman_image_t *image); |
| |
| |
| /* Set properties */ |
| pixman_bool_t pixman_image_set_clip_region (pixman_image_t *image, |
| pixman_region16_t *region); |
| void pixman_image_set_has_client_clip (pixman_image_t *image, |
| pixman_bool_t clien_clip); |
| pixman_bool_t pixman_image_set_transform (pixman_image_t *image, |
| const pixman_transform_t *transform); |
| void pixman_image_set_repeat (pixman_image_t *image, |
| pixman_repeat_t repeat); |
| 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); |
| void pixman_image_set_filter_params (pixman_image_t *image, |
| pixman_fixed_t *params, |
| int n_params); |
| void pixman_image_set_alpha_map (pixman_image_t *image, |
| pixman_image_t *alpha_map, |
| int16_t x, |
| int16_t y); |
| void pixman_image_set_component_alpha (pixman_image_t *image, |
| pixman_bool_t component_alpha); |
| void pixman_image_set_accessors (pixman_image_t *image, |
| pixman_read_memory_func_t read_func, |
| pixman_write_memory_func_t write_func); |
| void pixman_image_set_indexed (pixman_image_t *image, |
| const pixman_indexed_t *indexed); |
| uint32_t *pixman_image_get_data (pixman_image_t *image); |
| int pixman_image_get_width (pixman_image_t *image); |
| int pixman_image_get_height (pixman_image_t *image); |
| int pixman_image_get_stride (pixman_image_t *image); |
| int pixman_image_get_depth (pixman_image_t *image); |
| pixman_bool_t pixman_image_fill_rectangles (pixman_op_t op, |
| pixman_image_t *image, |
| pixman_color_t *color, |
| int n_rects, |
| const pixman_rectangle16_t *rects); |
| |
| /* Composite */ |
| pixman_bool_t pixman_compute_composite_region (pixman_region16_t * pRegion, |
| pixman_image_t * pSrc, |
| pixman_image_t * pMask, |
| pixman_image_t * pDst, |
| int16_t xSrc, |
| int16_t ySrc, |
| int16_t xMask, |
| int16_t yMask, |
| int16_t xDst, |
| int16_t yDst, |
| uint16_t width, |
| uint16_t height); |
| 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); |
| |
| /* |
| * 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; |
| |
| /* |
| * 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; |
| }; |
| |
| |
| /* 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 && \ |
| (int) ((t)->bottom - (t)->top) > 0) |
| |
| struct pixman_span_fix |
| { |
| pixman_fixed_t l, r, y; |
| }; |
| |
| struct pixman_trap |
| { |
| pixman_span_fix_t top, bot; |
| }; |
| |
| pixman_fixed_t pixman_sample_ceil_y (pixman_fixed_t y, |
| int bpp); |
| pixman_fixed_t pixman_sample_floor_y (pixman_fixed_t y, |
| int bpp); |
| void pixman_edge_step (pixman_edge_t *e, |
| int n); |
| 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); |
| 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); |
| void pixman_rasterize_edges (pixman_image_t *image, |
| pixman_edge_t *l, |
| pixman_edge_t *r, |
| pixman_fixed_t t, |
| pixman_fixed_t b); |
| void pixman_add_traps (pixman_image_t *image, |
| int16_t x_off, |
| int16_t y_off, |
| int ntrap, |
| pixman_trap_t *traps); |
| void pixman_add_trapezoids (pixman_image_t *image, |
| int16_t x_off, |
| int y_off, |
| int ntraps, |
| const pixman_trapezoid_t *traps); |
| void pixman_rasterize_trapezoid (pixman_image_t *image, |
| const pixman_trapezoid_t *trap, |
| int x_off, |
| int y_off); |
| |
| |
| #endif /* PIXMAN_H__ */ |
