pixman-private.h@ 33983

Last change on this file since 33983 was 22660, checked in by vboxsync, 15 years ago
export more X11 stuff to OSE
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Line
1	#ifndef PACKAGE
2	# error config.h must be included before pixman-private.h
3	#endif
4
5	#ifndef PIXMAN_PRIVATE_H
6	#define PIXMAN_PRIVATE_H
7
8	#include "pixman.h"
9	#include <time.h>
10	#include <assert.h>
11
12	#include "pixman-compiler.h"
13
14	/*
15	* Images
16	*/
17	typedef struct image_common image_common_t;
18	typedef struct source_image source_image_t;
19	typedef struct solid_fill solid_fill_t;
20	typedef struct gradient gradient_t;
21	typedef struct linear_gradient linear_gradient_t;
22	typedef struct horizontal_gradient horizontal_gradient_t;
23	typedef struct vertical_gradient vertical_gradient_t;
24	typedef struct conical_gradient conical_gradient_t;
25	typedef struct radial_gradient radial_gradient_t;
26	typedef struct bits_image bits_image_t;
27	typedef struct circle circle_t;
28
29	typedef void (fetch_scanline_t) (pixman_image_t image,
30	int x,
31	int y,
32	int width,
33	uint32_t *buffer,
34	const uint32_t *mask,
35	uint32_t mask_bits);
36
37	typedef uint32_t (fetch_pixel_32_t) (bits_image_t image,
38	int x,
39	int y);
40
41	typedef uint64_t (fetch_pixel_64_t) (bits_image_t image,
42	int x,
43	int y);
44
45	typedef void (store_scanline_t) (bits_image_t image,
46	int x,
47	int y,
48	int width,
49	const uint32_t *values);
50
51	typedef enum
52	{
53	BITS,
54	LINEAR,
55	CONICAL,
56	RADIAL,
57	SOLID
58	} image_type_t;
59
60	typedef enum
61	{
62	SOURCE_IMAGE_CLASS_UNKNOWN,
63	SOURCE_IMAGE_CLASS_HORIZONTAL,
64	SOURCE_IMAGE_CLASS_VERTICAL,
65	} source_image_class_t;
66
67	typedef source_image_class_t (classify_func_t) (pixman_image_t image,
68	int x,
69	int y,
70	int width,
71	int height);
72	typedef void (property_changed_func_t) (pixman_image_t image);
73
74	struct image_common
75	{
76	image_type_t type;
77	int32_t ref_count;
78	pixman_region32_t clip_region;
79	pixman_bool_t have_clip_region; /* FALSE if there is no clip */
80	pixman_bool_t client_clip; /* Whether the source clip was
81	set by a client */
82	pixman_bool_t clip_sources; /* Whether the clip applies when
83	* the image is used as a source
84	*/
85	pixman_bool_t dirty;
86	pixman_bool_t need_workaround;
87	pixman_transform_t * transform;
88	pixman_repeat_t repeat;
89	pixman_filter_t filter;
90	pixman_fixed_t * filter_params;
91	int n_filter_params;
92	bits_image_t * alpha_map;
93	int alpha_origin_x;
94	int alpha_origin_y;
95	pixman_bool_t component_alpha;
96	classify_func_t classify;
97	property_changed_func_t property_changed;
98	fetch_scanline_t get_scanline_32;
99	fetch_scanline_t get_scanline_64;
100
101	pixman_image_destroy_func_t destroy_func;
102	void * destroy_data;
103	};
104
105	struct source_image
106	{
107	image_common_t common;
108	source_image_class_t class;
109	};
110
111	struct solid_fill
112	{
113	source_image_t common;
114	uint32_t color; /* FIXME: shouldn't this be a pixman_color_t? */
115	};
116
117	struct gradient
118	{
119	source_image_t common;
120	int n_stops;
121	pixman_gradient_stop_t *stops;
122	int stop_range;
123	uint32_t * color_table;
124	int color_table_size;
125	};
126
127	struct linear_gradient
128	{
129	gradient_t common;
130	pixman_point_fixed_t p1;
131	pixman_point_fixed_t p2;
132	};
133
134	struct circle
135	{
136	pixman_fixed_t x;
137	pixman_fixed_t y;
138	pixman_fixed_t radius;
139	};
140
141	struct radial_gradient
142	{
143	gradient_t common;
144
145	circle_t c1;
146	circle_t c2;
147	double cdx;
148	double cdy;
149	double dr;
150	double A;
151	};
152
153	struct conical_gradient
154	{
155	gradient_t common;
156	pixman_point_fixed_t center;
157	pixman_fixed_t angle;
158	};
159
160	struct bits_image
161	{
162	image_common_t common;
163	pixman_format_code_t format;
164	const pixman_indexed_t * indexed;
165	int width;
166	int height;
167	uint32_t * bits;
168	uint32_t * free_me;
169	int rowstride; /* in number of uint32_t's */
170
171	/* Fetch a pixel, disregarding alpha maps, transformations etc. */
172	fetch_pixel_32_t fetch_pixel_raw_32;
173	fetch_pixel_64_t fetch_pixel_raw_64;
174
175	/* Fetch a pixel, taking alpha maps into account */
176	fetch_pixel_32_t fetch_pixel_32;
177	fetch_pixel_64_t fetch_pixel_64;
178
179	/* Fetch raw scanlines, with no regard for transformations, alpha maps etc. */
180	fetch_scanline_t fetch_scanline_raw_32;
181	fetch_scanline_t fetch_scanline_raw_64;
182
183	/* Store scanlines with no regard for alpha maps */
184	store_scanline_t store_scanline_raw_32;
185	store_scanline_t store_scanline_raw_64;
186
187	/* Store a scanline, taking alpha maps into account */
188	store_scanline_t store_scanline_32;
189	store_scanline_t store_scanline_64;
190
191	/* Used for indirect access to the bits */
192	pixman_read_memory_func_t read_func;
193	pixman_write_memory_func_t write_func;
194	};
195
196	union pixman_image
197	{
198	image_type_t type;
199	image_common_t common;
200	bits_image_t bits;
201	source_image_t source;
202	gradient_t gradient;
203	linear_gradient_t linear;
204	conical_gradient_t conical;
205	radial_gradient_t radial;
206	solid_fill_t solid;
207	};
208
209
210	void
211	_pixman_bits_image_setup_raw_accessors (bits_image_t *image);
212
213	void
214	_pixman_image_get_scanline_generic_64 (pixman_image_t *image,
215	int x,
216	int y,
217	int width,
218	uint32_t * buffer,
219	const uint32_t *mask,
220	uint32_t mask_bits);
221
222	source_image_class_t
223	_pixman_image_classify (pixman_image_t *image,
224	int x,
225	int y,
226	int width,
227	int height);
228
229	void
230	_pixman_image_get_scanline_32 (pixman_image_t *image,
231	int x,
232	int y,
233	int width,
234	uint32_t * buffer,
235	const uint32_t *mask,
236	uint32_t mask_bits);
237
238	/* Even thought the type of buffer is uint32_t *, the function actually expects
239	* a uint64_t *buffer.
240	*/
241	void
242	_pixman_image_get_scanline_64 (pixman_image_t *image,
243	int x,
244	int y,
245	int width,
246	uint32_t * buffer,
247	const uint32_t *unused,
248	uint32_t unused2);
249
250	void
251	_pixman_image_store_scanline_32 (bits_image_t * image,
252	int x,
253	int y,
254	int width,
255	const uint32_t *buffer);
256	void
257	_pixman_image_fetch_pixels (bits_image_t *image,
258	uint32_t * buffer,
259	int n_pixels);
260
261	/* Even though the type of buffer is uint32_t *, the function
262	* actually expects a uint64_t *buffer.
263	*/
264	void
265	_pixman_image_store_scanline_64 (bits_image_t * image,
266	int x,
267	int y,
268	int width,
269	const uint32_t *buffer);
270
271	pixman_image_t *
272	_pixman_image_allocate (void);
273
274	pixman_bool_t
275	_pixman_init_gradient (gradient_t * gradient,
276	const pixman_gradient_stop_t *stops,
277	int n_stops);
278	void
279	_pixman_image_reset_clip_region (pixman_image_t *image);
280
281	void
282	_pixman_image_validate (pixman_image_t *image);
283
284	pixman_bool_t
285	_pixman_image_is_opaque (pixman_image_t *image);
286
287	pixman_bool_t
288	_pixman_image_is_solid (pixman_image_t *image);
289
290	uint32_t
291	_pixman_image_get_solid (pixman_image_t * image,
292	pixman_format_code_t format);
293
294	#define PIXMAN_IMAGE_GET_LINE(image, x, y, type, out_stride, line, mul) \
295	do \
296	{ \
297	uint32_t *__bits__; \
298	int __stride__; \
299	\
300	__bits__ = image->bits.bits; \
301	__stride__ = image->bits.rowstride; \
302	(out_stride) = \
303	__stride__ * (int) sizeof (uint32_t) / (int) sizeof (type); \
304	(line) = \
305	((type ) __bits__) + (out_stride) (y) + (mul) * (x); \
306	} while (0)
307
308	/*
309	* Gradient walker
310	*/
311	typedef struct
312	{
313	uint32_t left_ag;
314	uint32_t left_rb;
315	uint32_t right_ag;
316	uint32_t right_rb;
317	int32_t left_x;
318	int32_t right_x;
319	int32_t stepper;
320
321	pixman_gradient_stop_t *stops;
322	int num_stops;
323	unsigned int spread;
324
325	int need_reset;
326	} pixman_gradient_walker_t;
327
328	void
329	_pixman_gradient_walker_init (pixman_gradient_walker_t *walker,
330	gradient_t * gradient,
331	unsigned int spread);
332
333	void
334	_pixman_gradient_walker_reset (pixman_gradient_walker_t *walker,
335	pixman_fixed_32_32_t pos);
336
337	uint32_t
338	_pixman_gradient_walker_pixel (pixman_gradient_walker_t *walker,
339	pixman_fixed_32_32_t x);
340
341	/*
342	* Edges
343	*/
344
345	#define MAX_ALPHA(n) ((1 << (n)) - 1)
346	#define N_Y_FRAC(n) ((n) == 1 ? 1 : (1 << ((n) / 2)) - 1)
347	#define N_X_FRAC(n) ((n) == 1 ? 1 : (1 << ((n) / 2)) + 1)
348
349	#define STEP_Y_SMALL(n) (pixman_fixed_1 / N_Y_FRAC (n))
350	#define STEP_Y_BIG(n) (pixman_fixed_1 - (N_Y_FRAC (n) - 1) * STEP_Y_SMALL (n))
351
352	#define Y_FRAC_FIRST(n) (STEP_Y_SMALL (n) / 2)
353	#define Y_FRAC_LAST(n) (Y_FRAC_FIRST (n) + (N_Y_FRAC (n) - 1) * STEP_Y_SMALL (n))
354
355	#define STEP_X_SMALL(n) (pixman_fixed_1 / N_X_FRAC (n))
356	#define STEP_X_BIG(n) (pixman_fixed_1 - (N_X_FRAC (n) - 1) * STEP_X_SMALL (n))
357
358	#define X_FRAC_FIRST(n) (STEP_X_SMALL (n) / 2)
359	#define X_FRAC_LAST(n) (X_FRAC_FIRST (n) + (N_X_FRAC (n) - 1) * STEP_X_SMALL (n))
360
361	#define RENDER_SAMPLES_X(x, n) \
362	((n) == 1? 0 : (pixman_fixed_frac (x) + \
363	X_FRAC_FIRST (n)) / STEP_X_SMALL (n))
364
365	void
366	pixman_rasterize_edges_accessors (pixman_image_t *image,
367	pixman_edge_t * l,
368	pixman_edge_t * r,
369	pixman_fixed_t t,
370	pixman_fixed_t b);
371
372	/*
373	* Implementations
374	*/
375
376	typedef struct pixman_implementation_t pixman_implementation_t;
377
378	typedef void (pixman_combine_32_func_t) (pixman_implementation_t imp,
379	pixman_op_t op,
380	uint32_t * dest,
381	const uint32_t * src,
382	const uint32_t * mask,
383	int width);
384
385	typedef void (pixman_combine_64_func_t) (pixman_implementation_t imp,
386	pixman_op_t op,
387	uint64_t * dest,
388	const uint64_t * src,
389	const uint64_t * mask,
390	int width);
391
392	typedef void (pixman_composite_func_t) (pixman_implementation_t imp,
393	pixman_op_t op,
394	pixman_image_t * src,
395	pixman_image_t * mask,
396	pixman_image_t * dest,
397	int32_t src_x,
398	int32_t src_y,
399	int32_t mask_x,
400	int32_t mask_y,
401	int32_t dest_x,
402	int32_t dest_y,
403	int32_t width,
404	int32_t height);
405	typedef pixman_bool_t (pixman_blt_func_t) (pixman_implementation_t imp,
406	uint32_t * src_bits,
407	uint32_t * dst_bits,
408	int src_stride,
409	int dst_stride,
410	int src_bpp,
411	int dst_bpp,
412	int src_x,
413	int src_y,
414	int dst_x,
415	int dst_y,
416	int width,
417	int height);
418	typedef pixman_bool_t (pixman_fill_func_t) (pixman_implementation_t imp,
419	uint32_t * bits,
420	int stride,
421	int bpp,
422	int x,
423	int y,
424	int width,
425	int height,
426	uint32_t xor);
427
428	void _pixman_setup_combiner_functions_32 (pixman_implementation_t *imp);
429	void _pixman_setup_combiner_functions_64 (pixman_implementation_t *imp);
430
431	struct pixman_implementation_t
432	{
433	pixman_implementation_t *toplevel;
434	pixman_implementation_t *delegate;
435
436	pixman_composite_func_t composite;
437	pixman_blt_func_t blt;
438	pixman_fill_func_t fill;
439
440	pixman_combine_32_func_t combine_32[PIXMAN_OP_LAST];
441	pixman_combine_32_func_t combine_32_ca[PIXMAN_OP_LAST];
442	pixman_combine_64_func_t combine_64[PIXMAN_OP_LAST];
443	pixman_combine_64_func_t combine_64_ca[PIXMAN_OP_LAST];
444	};
445
446	pixman_implementation_t *
447	_pixman_implementation_create (pixman_implementation_t *delegate);
448
449	void
450	_pixman_implementation_combine_32 (pixman_implementation_t *imp,
451	pixman_op_t op,
452	uint32_t * dest,
453	const uint32_t * src,
454	const uint32_t * mask,
455	int width);
456	void
457	_pixman_implementation_combine_64 (pixman_implementation_t *imp,
458	pixman_op_t op,
459	uint64_t * dest,
460	const uint64_t * src,
461	const uint64_t * mask,
462	int width);
463	void
464	_pixman_implementation_combine_32_ca (pixman_implementation_t *imp,
465	pixman_op_t op,
466	uint32_t * dest,
467	const uint32_t * src,
468	const uint32_t * mask,
469	int width);
470	void
471	_pixman_implementation_combine_64_ca (pixman_implementation_t *imp,
472	pixman_op_t op,
473	uint64_t * dest,
474	const uint64_t * src,
475	const uint64_t * mask,
476	int width);
477	void
478	_pixman_implementation_composite (pixman_implementation_t *imp,
479	pixman_op_t op,
480	pixman_image_t * src,
481	pixman_image_t * mask,
482	pixman_image_t * dest,
483	int32_t src_x,
484	int32_t src_y,
485	int32_t mask_x,
486	int32_t mask_y,
487	int32_t dest_x,
488	int32_t dest_y,
489	int32_t width,
490	int32_t height);
491
492	pixman_bool_t
493	_pixman_implementation_blt (pixman_implementation_t *imp,
494	uint32_t * src_bits,
495	uint32_t * dst_bits,
496	int src_stride,
497	int dst_stride,
498	int src_bpp,
499	int dst_bpp,
500	int src_x,
501	int src_y,
502	int dst_x,
503	int dst_y,
504	int width,
505	int height);
506
507	pixman_bool_t
508	_pixman_implementation_fill (pixman_implementation_t *imp,
509	uint32_t * bits,
510	int stride,
511	int bpp,
512	int x,
513	int y,
514	int width,
515	int height,
516	uint32_t xor);
517
518	/* Specific implementations */
519	pixman_implementation_t *
520	_pixman_implementation_create_general (void);
521
522	pixman_implementation_t *
523	_pixman_implementation_create_fast_path (void);
524
525	#ifdef USE_MMX
526	pixman_implementation_t *
527	_pixman_implementation_create_mmx (void);
528	#endif
529
530	#ifdef USE_SSE2
531	pixman_implementation_t *
532	_pixman_implementation_create_sse2 (void);
533	#endif
534
535	#ifdef USE_ARM_SIMD
536	pixman_implementation_t *
537	_pixman_implementation_create_arm_simd (void);
538	#endif
539
540	#ifdef USE_ARM_NEON
541	pixman_implementation_t *
542	_pixman_implementation_create_arm_neon (void);
543	#endif
544
545	#ifdef USE_VMX
546	pixman_implementation_t *
547	_pixman_implementation_create_vmx (void);
548	#endif
549
550	pixman_implementation_t *
551	_pixman_choose_implementation (void);
552
553
554
555	/*
556	* Utilities
557	*/
558
559	/* These "formats" both have depth 0, so they
560	* will never clash with any real ones
561	*/
562	#define PIXMAN_null PIXMAN_FORMAT (0, 0, 0, 0, 0, 0)
563	#define PIXMAN_solid PIXMAN_FORMAT (0, 1, 0, 0, 0, 0)
564
565	#define NEED_COMPONENT_ALPHA (1 << 0)
566	#define NEED_PIXBUF (1 << 1)
567	#define NEED_SOLID_MASK (1 << 2)
568
569	typedef struct
570	{
571	pixman_op_t op;
572	pixman_format_code_t src_format;
573	pixman_format_code_t mask_format;
574	pixman_format_code_t dest_format;
575	pixman_composite_func_t func;
576	uint32_t flags;
577	} pixman_fast_path_t;
578
579	/* Memory allocation helpers */
580	void *
581	pixman_malloc_ab (unsigned int n, unsigned int b);
582
583	void *
584	pixman_malloc_abc (unsigned int a, unsigned int b, unsigned int c);
585
586	pixman_bool_t
587	pixman_multiply_overflows_int (unsigned int a, unsigned int b);
588
589	pixman_bool_t
590	pixman_addition_overflows_int (unsigned int a, unsigned int b);
591
592	/* Compositing utilities */
593	pixman_bool_t
594	_pixman_run_fast_path (const pixman_fast_path_t *paths,
595	pixman_implementation_t * imp,
596	pixman_op_t op,
597	pixman_image_t * src,
598	pixman_image_t * mask,
599	pixman_image_t * dest,
600	int32_t src_x,
601	int32_t src_y,
602	int32_t mask_x,
603	int32_t mask_y,
604	int32_t dest_x,
605	int32_t dest_y,
606	int32_t width,
607	int32_t height);
608
609	void
610	_pixman_walk_composite_region (pixman_implementation_t *imp,
611	pixman_op_t op,
612	pixman_image_t * src_image,
613	pixman_image_t * mask_image,
614	pixman_image_t * dst_image,
615	int16_t src_x,
616	int16_t src_y,
617	int16_t mask_x,
618	int16_t mask_y,
619	int16_t dest_x,
620	int16_t dest_y,
621	uint16_t width,
622	uint16_t height,
623	pixman_composite_func_t composite_rect);
624
625	void
626	pixman_expand (uint64_t * dst,
627	const uint32_t * src,
628	pixman_format_code_t format,
629	int width);
630
631	void
632	pixman_contract (uint32_t * dst,
633	const uint64_t *src,
634	int width);
635
636
637	/* Region Helpers */
638	pixman_bool_t
639	pixman_region32_copy_from_region16 (pixman_region32_t *dst,
640	pixman_region16_t *src);
641
642	pixman_bool_t
643	pixman_region16_copy_from_region32 (pixman_region16_t *dst,
644	pixman_region32_t *src);
645
646
647	/* Misc macros */
648
649	#ifndef FALSE
650	# define FALSE 0
651	#endif
652
653	#ifndef TRUE
654	# define TRUE 1
655	#endif
656
657	#ifndef MIN
658	# define MIN(a, b) ((a < b) ? a : b)
659	#endif
660
661	#ifndef MAX
662	# define MAX(a, b) ((a > b) ? a : b)
663	#endif
664
665	/* Integer division that rounds towards -infinity */
666	#define DIV(a, b) \
667	((((a) < 0) == ((b) < 0)) ? (a) / (b) : \
668	((a) - (b) + 1 - (((b) < 0) << 1)) / (b))
669
670	/* Modulus that produces the remainder wrt. DIV */
671	#define MOD(a, b) ((a) < 0 ? ((b) - ((-(a) - 1) % (b))) - 1 : (a) % (b))
672
673	#define CLIP(v, low, high) ((v) < (low) ? (low) : ((v) > (high) ? (high) : (v)))
674
675	/* Conversion between 8888 and 0565 */
676
677	#define CONVERT_8888_TO_0565(s) \
678	((((s) >> 3) & 0x001f) \| \
679	(((s) >> 5) & 0x07e0) \| \
680	(((s) >> 8) & 0xf800))
681
682	#define CONVERT_0565_TO_0888(s) \
683	(((((s) << 3) & 0xf8) \| (((s) >> 2) & 0x7)) \| \
684	((((s) << 5) & 0xfc00) \| (((s) >> 1) & 0x300)) \| \
685	((((s) << 8) & 0xf80000) \| (((s) << 3) & 0x70000)))
686
687	#define PIXMAN_FORMAT_IS_WIDE(f) \
688	(PIXMAN_FORMAT_A (f) > 8 \|\| \
689	PIXMAN_FORMAT_R (f) > 8 \|\| \
690	PIXMAN_FORMAT_G (f) > 8 \|\| \
691	PIXMAN_FORMAT_B (f) > 8)
692
693	/*
694	* Various debugging code
695	*/
696
697	#undef DEBUG
698	#define DEBUG 0
699
700	#if DEBUG
701
702	#define return_if_fail(expr) \
703	do \
704	{ \
705	if (!(expr)) \
706	{ \
707	fprintf (stderr, "In %s: %s failed\n", FUNC, # expr); \
708	return; \
709	} \
710	} \
711	while (0)
712
713	#define return_val_if_fail(expr, retval) \
714	do \
715	{ \
716	if (!(expr)) \
717	{ \
718	fprintf (stderr, "In %s: %s failed\n", FUNC, # expr); \
719	return (retval); \
720	} \
721	} \
722	while (0)
723
724	#else
725
726	#define return_if_fail(expr) \
727	do \
728	{ \
729	if (!(expr)) \
730	return; \
731	} \
732	while (0)
733
734	#define return_val_if_fail(expr, retval) \
735	do \
736	{ \
737	if (!(expr)) \
738	return (retval); \
739	} \
740	while (0)
741
742	#endif
743
744	/*
745	* Timers
746	*/
747
748	#ifdef PIXMAN_TIMERS
749
750	static inline uint64_t
751	oil_profile_stamp_rdtsc (void)
752	{
753	uint64_t ts;
754
755	__asm__ __volatile__ ("rdtsc\n" : "=A" (ts));
756	return ts;
757	}
758
759	#define OIL_STAMP oil_profile_stamp_rdtsc
760
761	typedef struct pixman_timer_t pixman_timer_t;
762
763	struct pixman_timer_t
764	{
765	int initialized;
766	const char * name;
767	uint64_t n_times;
768	uint64_t total;
769	pixman_timer_t *next;
770	};
771
772	extern int timer_defined;
773
774	void pixman_timer_register (pixman_timer_t *timer);
775
776	#define TIMER_BEGIN(tname) \
777	{ \
778	static pixman_timer_t timer ## tname; \
779	uint64_t begin ## tname; \
780	\
781	if (!timer ## tname.initialized) \
782	{ \
783	timer ## tname.initialized = 1; \
784	timer ## tname.name = # tname; \
785	pixman_timer_register (&timer ## tname); \
786	} \
787	\
788	timer ## tname.n_times++; \
789	begin ## tname = OIL_STAMP ();
790
791	#define TIMER_END(tname) \
792	timer ## tname.total += OIL_STAMP () - begin ## tname; \
793	}
794
795	#endif /* PIXMAN_TIMERS */
796
797	#endif /* PIXMAN_PRIVATE_H */

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source: vbox/trunk/src/VBox/Additions/x11/x11include/pixman-0.16.0/pixman-private.h@ 33983

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