#ifndef PIXMAN_PRIVATE_H #define PIXMAN_PRIVATE_H /* * The defines which are shared between C and assembly code */ /* bilinear interpolation precision (must be < 8) */ #define BILINEAR_INTERPOLATION_BITS 7 #define BILINEAR_INTERPOLATION_RANGE (1 << BILINEAR_INTERPOLATION_BITS) /* * C specific part */ #ifndef __ASSEMBLER__ #ifndef PACKAGE # error config.h must be included before pixman-private.h #endif #define PIXMAN_DISABLE_DEPRECATED #define PIXMAN_USE_INTERNAL_API #include "pixman.h" #include #include #include #include #include #include #include "pixman-compiler.h" /* * Images */ typedef struct image_common image_common_t; typedef struct solid_fill solid_fill_t; typedef struct gradient gradient_t; typedef struct linear_gradient linear_gradient_t; typedef struct horizontal_gradient horizontal_gradient_t; typedef struct vertical_gradient vertical_gradient_t; typedef struct conical_gradient conical_gradient_t; typedef struct radial_gradient radial_gradient_t; typedef struct bits_image bits_image_t; typedef struct circle circle_t; typedef struct argb_t argb_t; struct argb_t { float a; float r; float g; float b; }; typedef void (*fetch_scanline_t) (bits_image_t *image, int x, int y, int width, uint32_t *buffer, const uint32_t *mask); typedef uint32_t (*fetch_pixel_32_t) (bits_image_t *image, int x, int y); typedef argb_t (*fetch_pixel_float_t) (bits_image_t *image, int x, int y); typedef void (*store_scanline_t) (bits_image_t * image, int x, int y, int width, const uint32_t *values); typedef enum { BITS, LINEAR, CONICAL, RADIAL, SOLID } image_type_t; typedef void (*property_changed_func_t) (pixman_image_t *image); struct image_common { image_type_t type; int32_t ref_count; pixman_region32_t clip_region; int32_t alpha_count; /* How many times this image is being used as an alpha map */ pixman_bool_t have_clip_region; /* FALSE if there is no clip */ pixman_bool_t client_clip; /* Whether the source clip was set by a client */ pixman_bool_t clip_sources; /* Whether the clip applies when * the image is used as a source */ pixman_bool_t dirty; pixman_transform_t * transform; pixman_repeat_t repeat; pixman_filter_t filter; pixman_fixed_t * filter_params; int n_filter_params; bits_image_t * alpha_map; int alpha_origin_x; int alpha_origin_y; pixman_bool_t component_alpha; property_changed_func_t property_changed; pixman_image_destroy_func_t destroy_func; void * destroy_data; uint32_t flags; pixman_format_code_t extended_format_code; }; struct solid_fill { image_common_t common; pixman_color_t color; uint32_t color_32; argb_t color_float; }; struct gradient { image_common_t common; int n_stops; pixman_gradient_stop_t *stops; }; struct linear_gradient { gradient_t common; pixman_point_fixed_t p1; pixman_point_fixed_t p2; }; struct circle { pixman_fixed_t x; pixman_fixed_t y; pixman_fixed_t radius; }; struct radial_gradient { gradient_t common; circle_t c1; circle_t c2; circle_t delta; double a; double inva; double mindr; }; struct conical_gradient { gradient_t common; pixman_point_fixed_t center; double angle; }; struct bits_image { image_common_t common; pixman_format_code_t format; const pixman_indexed_t * indexed; int width; int height; uint32_t * bits; uint32_t * free_me; int rowstride; /* in number of uint32_t's */ pixman_dither_t dither; uint32_t dither_offset_y; uint32_t dither_offset_x; fetch_scanline_t fetch_scanline_32; fetch_pixel_32_t fetch_pixel_32; store_scanline_t store_scanline_32; fetch_scanline_t fetch_scanline_float; fetch_pixel_float_t fetch_pixel_float; store_scanline_t store_scanline_float; /* Used for indirect access to the bits */ pixman_read_memory_func_t read_func; pixman_write_memory_func_t write_func; }; union pixman_image { image_type_t type; image_common_t common; bits_image_t bits; gradient_t gradient; linear_gradient_t linear; conical_gradient_t conical; radial_gradient_t radial; solid_fill_t solid; }; typedef struct pixman_iter_t pixman_iter_t; typedef uint32_t *(* pixman_iter_get_scanline_t) (pixman_iter_t *iter, const uint32_t *mask); typedef void (* pixman_iter_write_back_t) (pixman_iter_t *iter); typedef void (* pixman_iter_fini_t) (pixman_iter_t *iter); typedef enum { ITER_NARROW = (1 << 0), ITER_WIDE = (1 << 1), /* "Localized alpha" is when the alpha channel is used only to compute * the alpha value of the destination. This means that the computation * of the RGB values of the result is independent of the alpha value. * * For example, the OVER operator has localized alpha for the * destination, because the RGB values of the result can be computed * without knowing the destination alpha. Similarly, ADD has localized * alpha for both source and destination because the RGB values of the * result can be computed without knowing the alpha value of source or * destination. * * When he destination is xRGB, this is useful knowledge, because then * we can treat it as if it were ARGB, which means in some cases we can * avoid copying it to a temporary buffer. */ ITER_LOCALIZED_ALPHA = (1 << 2), ITER_IGNORE_ALPHA = (1 << 3), ITER_IGNORE_RGB = (1 << 4), /* These indicate whether the iterator is for a source * or a destination image */ ITER_SRC = (1 << 5), ITER_DEST = (1 << 6) } iter_flags_t; struct pixman_iter_t { /* These are initialized by _pixman_implementation_{src,dest}_init */ pixman_image_t * image; uint32_t * buffer; int x, y; int width; int height; iter_flags_t iter_flags; uint32_t image_flags; /* These function pointers are initialized by the implementation */ pixman_iter_get_scanline_t get_scanline; pixman_iter_write_back_t write_back; pixman_iter_fini_t fini; /* These fields are scratch data that implementations can use */ void * data; uint8_t * bits; int stride; }; typedef struct pixman_iter_info_t pixman_iter_info_t; typedef void (* pixman_iter_initializer_t) (pixman_iter_t *iter, const pixman_iter_info_t *info); struct pixman_iter_info_t { pixman_format_code_t format; uint32_t image_flags; iter_flags_t iter_flags; pixman_iter_initializer_t initializer; pixman_iter_get_scanline_t get_scanline; pixman_iter_write_back_t write_back; }; void _pixman_bits_image_setup_accessors (bits_image_t *image); void _pixman_bits_image_src_iter_init (pixman_image_t *image, pixman_iter_t *iter); void _pixman_bits_image_dest_iter_init (pixman_image_t *image, pixman_iter_t *iter); void _pixman_linear_gradient_iter_init (pixman_image_t *image, pixman_iter_t *iter); void _pixman_radial_gradient_iter_init (pixman_image_t *image, pixman_iter_t *iter); void _pixman_conical_gradient_iter_init (pixman_image_t *image, pixman_iter_t *iter); void _pixman_image_init (pixman_image_t *image); pixman_bool_t _pixman_bits_image_init (pixman_image_t * image, pixman_format_code_t format, int width, int height, uint32_t * bits, int rowstride, pixman_bool_t clear); pixman_bool_t _pixman_image_fini (pixman_image_t *image); pixman_image_t * _pixman_image_allocate (void); pixman_bool_t _pixman_init_gradient (gradient_t * gradient, const pixman_gradient_stop_t *stops, int n_stops); void _pixman_image_reset_clip_region (pixman_image_t *image); void _pixman_image_validate (pixman_image_t *image); #define PIXMAN_IMAGE_GET_LINE(image, x, y, type, out_stride, line, mul) \ do \ { \ uint32_t *__bits__; \ int __stride__; \ \ __bits__ = image->bits.bits; \ __stride__ = image->bits.rowstride; \ (out_stride) = \ __stride__ * (int) sizeof (uint32_t) / (int) sizeof (type); \ (line) = \ ((type *) __bits__) + (out_stride) * (y) + (mul) * (x); \ } while (0) /* * Gradient walker */ typedef struct { float a_s, a_b; float r_s, r_b; float g_s, g_b; float b_s, b_b; pixman_fixed_48_16_t left_x; pixman_fixed_48_16_t right_x; pixman_gradient_stop_t *stops; int num_stops; pixman_repeat_t repeat; pixman_bool_t need_reset; } pixman_gradient_walker_t; void _pixman_gradient_walker_init (pixman_gradient_walker_t *walker, gradient_t * gradient, pixman_repeat_t repeat); void _pixman_gradient_walker_reset (pixman_gradient_walker_t *walker, pixman_fixed_48_16_t pos); typedef void (*pixman_gradient_walker_write_t) ( pixman_gradient_walker_t *walker, pixman_fixed_48_16_t x, uint32_t *buffer); void _pixman_gradient_walker_write_narrow(pixman_gradient_walker_t *walker, pixman_fixed_48_16_t x, uint32_t *buffer); void _pixman_gradient_walker_write_wide(pixman_gradient_walker_t *walker, pixman_fixed_48_16_t x, uint32_t *buffer); typedef void (*pixman_gradient_walker_fill_t) ( pixman_gradient_walker_t *walker, pixman_fixed_48_16_t x, uint32_t *buffer, uint32_t *end); void _pixman_gradient_walker_fill_narrow(pixman_gradient_walker_t *walker, pixman_fixed_48_16_t x, uint32_t *buffer, uint32_t *end); void _pixman_gradient_walker_fill_wide(pixman_gradient_walker_t *walker, pixman_fixed_48_16_t x, uint32_t *buffer, uint32_t *end); /* * Edges */ #define MAX_ALPHA(n) ((1 << (n)) - 1) #define N_Y_FRAC(n) ((n) == 1 ? 1 : (1 << ((n) / 2)) - 1) #define N_X_FRAC(n) ((n) == 1 ? 1 : (1 << ((n) / 2)) + 1) #define STEP_Y_SMALL(n) (pixman_fixed_1 / N_Y_FRAC (n)) #define STEP_Y_BIG(n) (pixman_fixed_1 - (N_Y_FRAC (n) - 1) * STEP_Y_SMALL (n)) #define Y_FRAC_FIRST(n) (STEP_Y_BIG (n) / 2) #define Y_FRAC_LAST(n) (Y_FRAC_FIRST (n) + (N_Y_FRAC (n) - 1) * STEP_Y_SMALL (n)) #define STEP_X_SMALL(n) (pixman_fixed_1 / N_X_FRAC (n)) #define STEP_X_BIG(n) (pixman_fixed_1 - (N_X_FRAC (n) - 1) * STEP_X_SMALL (n)) #define X_FRAC_FIRST(n) (STEP_X_BIG (n) / 2) #define X_FRAC_LAST(n) (X_FRAC_FIRST (n) + (N_X_FRAC (n) - 1) * STEP_X_SMALL (n)) #define RENDER_SAMPLES_X(x, n) \ ((n) == 1? 0 : (pixman_fixed_frac (x) + \ X_FRAC_FIRST (n)) / STEP_X_SMALL (n)) void pixman_rasterize_edges_accessors (pixman_image_t *image, pixman_edge_t * l, pixman_edge_t * r, pixman_fixed_t t, pixman_fixed_t b); /* * Implementations */ typedef struct pixman_implementation_t pixman_implementation_t; typedef struct { pixman_op_t op; pixman_image_t * src_image; pixman_image_t * mask_image; pixman_image_t * dest_image; 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; uint32_t src_flags; uint32_t mask_flags; uint32_t dest_flags; } pixman_composite_info_t; #define PIXMAN_COMPOSITE_ARGS(info) \ MAYBE_UNUSED pixman_op_t op = info->op; \ MAYBE_UNUSED pixman_image_t * src_image = info->src_image; \ MAYBE_UNUSED pixman_image_t * mask_image = info->mask_image; \ MAYBE_UNUSED pixman_image_t * dest_image = info->dest_image; \ MAYBE_UNUSED int32_t src_x = info->src_x; \ MAYBE_UNUSED int32_t src_y = info->src_y; \ MAYBE_UNUSED int32_t mask_x = info->mask_x; \ MAYBE_UNUSED int32_t mask_y = info->mask_y; \ MAYBE_UNUSED int32_t dest_x = info->dest_x; \ MAYBE_UNUSED int32_t dest_y = info->dest_y; \ MAYBE_UNUSED int32_t width = info->width; \ MAYBE_UNUSED int32_t height = info->height typedef void (*pixman_combine_32_func_t) (pixman_implementation_t *imp, pixman_op_t op, uint32_t * dest, const uint32_t * src, const uint32_t * mask, int width); typedef void (*pixman_combine_float_func_t) (pixman_implementation_t *imp, pixman_op_t op, float * dest, const float * src, const float * mask, int n_pixels); typedef void (*pixman_composite_func_t) (pixman_implementation_t *imp, pixman_composite_info_t *info); typedef pixman_bool_t (*pixman_blt_func_t) (pixman_implementation_t *imp, 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); typedef pixman_bool_t (*pixman_fill_func_t) (pixman_implementation_t *imp, uint32_t * bits, int stride, int bpp, int x, int y, int width, int height, uint32_t filler); void _pixman_setup_combiner_functions_32 (pixman_implementation_t *imp); void _pixman_setup_combiner_functions_float (pixman_implementation_t *imp); typedef struct { pixman_op_t op; pixman_format_code_t src_format; uint32_t src_flags; pixman_format_code_t mask_format; uint32_t mask_flags; pixman_format_code_t dest_format; uint32_t dest_flags; pixman_composite_func_t func; } pixman_fast_path_t; struct pixman_implementation_t { pixman_implementation_t * toplevel; pixman_implementation_t * fallback; const pixman_fast_path_t * fast_paths; const pixman_iter_info_t * iter_info; pixman_blt_func_t blt; pixman_fill_func_t fill; pixman_combine_32_func_t combine_32[PIXMAN_N_OPERATORS]; pixman_combine_32_func_t combine_32_ca[PIXMAN_N_OPERATORS]; pixman_combine_float_func_t combine_float[PIXMAN_N_OPERATORS]; pixman_combine_float_func_t combine_float_ca[PIXMAN_N_OPERATORS]; }; uint32_t _pixman_image_get_solid (pixman_implementation_t *imp, pixman_image_t * image, pixman_format_code_t format); pixman_implementation_t * _pixman_implementation_create (pixman_implementation_t *fallback, const pixman_fast_path_t *fast_paths); void _pixman_implementation_lookup_composite (pixman_implementation_t *toplevel, pixman_op_t op, pixman_format_code_t src_format, uint32_t src_flags, pixman_format_code_t mask_format, uint32_t mask_flags, pixman_format_code_t dest_format, uint32_t dest_flags, pixman_implementation_t **out_imp, pixman_composite_func_t *out_func); pixman_combine_32_func_t _pixman_implementation_lookup_combiner (pixman_implementation_t *imp, pixman_op_t op, pixman_bool_t component_alpha, pixman_bool_t wide); pixman_bool_t _pixman_implementation_blt (pixman_implementation_t *imp, 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_bool_t _pixman_implementation_fill (pixman_implementation_t *imp, uint32_t * bits, int stride, int bpp, int x, int y, int width, int height, uint32_t filler); void _pixman_implementation_iter_init (pixman_implementation_t *imp, pixman_iter_t *iter, pixman_image_t *image, int x, int y, int width, int height, uint8_t *buffer, iter_flags_t flags, uint32_t image_flags); /* Specific implementations */ pixman_implementation_t * _pixman_implementation_create_general (void); pixman_implementation_t * _pixman_implementation_create_fast_path (pixman_implementation_t *fallback); pixman_implementation_t * _pixman_implementation_create_noop (pixman_implementation_t *fallback); #if defined USE_X86_MMX || defined USE_ARM_IWMMXT || defined USE_LOONGSON_MMI pixman_implementation_t * _pixman_implementation_create_mmx (pixman_implementation_t *fallback); #endif #ifdef USE_SSE2 pixman_implementation_t * _pixman_implementation_create_sse2 (pixman_implementation_t *fallback); #endif #ifdef USE_SSSE3 pixman_implementation_t * _pixman_implementation_create_ssse3 (pixman_implementation_t *fallback); #endif #ifdef USE_ARM_SIMD pixman_implementation_t * _pixman_implementation_create_arm_simd (pixman_implementation_t *fallback); #endif #ifdef USE_ARM_NEON pixman_implementation_t * _pixman_implementation_create_arm_neon (pixman_implementation_t *fallback); #endif #ifdef USE_ARM_A64_NEON pixman_implementation_t * _pixman_implementation_create_arm_neon (pixman_implementation_t *fallback); #endif #ifdef USE_MIPS_DSPR2 pixman_implementation_t * _pixman_implementation_create_mips_dspr2 (pixman_implementation_t *fallback); #endif #ifdef USE_VMX pixman_implementation_t * _pixman_implementation_create_vmx (pixman_implementation_t *fallback); #endif pixman_bool_t _pixman_implementation_disabled (const char *name); pixman_implementation_t * _pixman_x86_get_implementations (pixman_implementation_t *imp); pixman_implementation_t * _pixman_arm_get_implementations (pixman_implementation_t *imp); pixman_implementation_t * _pixman_ppc_get_implementations (pixman_implementation_t *imp); pixman_implementation_t * _pixman_mips_get_implementations (pixman_implementation_t *imp); pixman_implementation_t * _pixman_choose_implementation (void); pixman_bool_t _pixman_disabled (const char *name); /* * Utilities */ pixman_bool_t _pixman_compute_composite_region32 (pixman_region32_t * region, pixman_image_t * src_image, pixman_image_t * mask_image, pixman_image_t * dest_image, 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); uint32_t * _pixman_iter_get_scanline_noop (pixman_iter_t *iter, const uint32_t *mask); void _pixman_iter_init_bits_stride (pixman_iter_t *iter, const pixman_iter_info_t *info); /* These "formats" all have depth 0, so they * will never clash with any real ones */ #define PIXMAN_null PIXMAN_FORMAT (0, 0, 0, 0, 0, 0) #define PIXMAN_solid PIXMAN_FORMAT (0, 1, 0, 0, 0, 0) #define PIXMAN_pixbuf PIXMAN_FORMAT (0, 2, 0, 0, 0, 0) #define PIXMAN_rpixbuf PIXMAN_FORMAT (0, 3, 0, 0, 0, 0) #define PIXMAN_unknown PIXMAN_FORMAT (0, 4, 0, 0, 0, 0) #define PIXMAN_any PIXMAN_FORMAT (0, 5, 0, 0, 0, 0) #define PIXMAN_OP_any (PIXMAN_N_OPERATORS + 1) #define FAST_PATH_ID_TRANSFORM (1 << 0) #define FAST_PATH_NO_ALPHA_MAP (1 << 1) #define FAST_PATH_NO_CONVOLUTION_FILTER (1 << 2) #define FAST_PATH_NO_PAD_REPEAT (1 << 3) #define FAST_PATH_NO_REFLECT_REPEAT (1 << 4) #define FAST_PATH_NO_ACCESSORS (1 << 5) #define FAST_PATH_NARROW_FORMAT (1 << 6) #define FAST_PATH_COMPONENT_ALPHA (1 << 8) #define FAST_PATH_SAMPLES_OPAQUE (1 << 7) #define FAST_PATH_UNIFIED_ALPHA (1 << 9) #define FAST_PATH_SCALE_TRANSFORM (1 << 10) #define FAST_PATH_NEAREST_FILTER (1 << 11) #define FAST_PATH_HAS_TRANSFORM (1 << 12) #define FAST_PATH_IS_OPAQUE (1 << 13) #define FAST_PATH_NO_NORMAL_REPEAT (1 << 14) #define FAST_PATH_NO_NONE_REPEAT (1 << 15) #define FAST_PATH_X_UNIT_POSITIVE (1 << 16) #define FAST_PATH_AFFINE_TRANSFORM (1 << 17) #define FAST_PATH_Y_UNIT_ZERO (1 << 18) #define FAST_PATH_BILINEAR_FILTER (1 << 19) #define FAST_PATH_ROTATE_90_TRANSFORM (1 << 20) #define FAST_PATH_ROTATE_180_TRANSFORM (1 << 21) #define FAST_PATH_ROTATE_270_TRANSFORM (1 << 22) #define FAST_PATH_SAMPLES_COVER_CLIP_NEAREST (1 << 23) #define FAST_PATH_SAMPLES_COVER_CLIP_BILINEAR (1 << 24) #define FAST_PATH_BITS_IMAGE (1 << 25) #define FAST_PATH_SEPARABLE_CONVOLUTION_FILTER (1 << 26) #define FAST_PATH_PAD_REPEAT \ (FAST_PATH_NO_NONE_REPEAT | \ FAST_PATH_NO_NORMAL_REPEAT | \ FAST_PATH_NO_REFLECT_REPEAT) #define FAST_PATH_NORMAL_REPEAT \ (FAST_PATH_NO_NONE_REPEAT | \ FAST_PATH_NO_PAD_REPEAT | \ FAST_PATH_NO_REFLECT_REPEAT) #define FAST_PATH_NONE_REPEAT \ (FAST_PATH_NO_NORMAL_REPEAT | \ FAST_PATH_NO_PAD_REPEAT | \ FAST_PATH_NO_REFLECT_REPEAT) #define FAST_PATH_REFLECT_REPEAT \ (FAST_PATH_NO_NONE_REPEAT | \ FAST_PATH_NO_NORMAL_REPEAT | \ FAST_PATH_NO_PAD_REPEAT) #define FAST_PATH_STANDARD_FLAGS \ (FAST_PATH_NO_CONVOLUTION_FILTER | \ FAST_PATH_NO_ACCESSORS | \ FAST_PATH_NO_ALPHA_MAP | \ FAST_PATH_NARROW_FORMAT) #define FAST_PATH_STD_DEST_FLAGS \ (FAST_PATH_NO_ACCESSORS | \ FAST_PATH_NO_ALPHA_MAP | \ FAST_PATH_NARROW_FORMAT) #define SOURCE_FLAGS(format) \ (FAST_PATH_STANDARD_FLAGS | \ ((PIXMAN_ ## format == PIXMAN_solid) ? \ 0 : (FAST_PATH_SAMPLES_COVER_CLIP_NEAREST | FAST_PATH_NEAREST_FILTER | FAST_PATH_ID_TRANSFORM))) #define MASK_FLAGS(format, extra) \ ((PIXMAN_ ## format == PIXMAN_null) ? 0 : (SOURCE_FLAGS (format) | extra)) #define FAST_PATH(op, src, src_flags, mask, mask_flags, dest, dest_flags, func) \ PIXMAN_OP_ ## op, \ PIXMAN_ ## src, \ src_flags, \ PIXMAN_ ## mask, \ mask_flags, \ PIXMAN_ ## dest, \ dest_flags, \ func #define PIXMAN_STD_FAST_PATH(op, src, mask, dest, func) \ { FAST_PATH ( \ op, \ src, SOURCE_FLAGS (src), \ mask, MASK_FLAGS (mask, FAST_PATH_UNIFIED_ALPHA), \ dest, FAST_PATH_STD_DEST_FLAGS, \ func) } #define PIXMAN_STD_FAST_PATH_CA(op, src, mask, dest, func) \ { FAST_PATH ( \ op, \ src, SOURCE_FLAGS (src), \ mask, MASK_FLAGS (mask, FAST_PATH_COMPONENT_ALPHA), \ dest, FAST_PATH_STD_DEST_FLAGS, \ func) } extern pixman_implementation_t *global_implementation; static force_inline pixman_implementation_t * get_implementation (void) { #ifndef TOOLCHAIN_SUPPORTS_ATTRIBUTE_CONSTRUCTOR if (!global_implementation) global_implementation = _pixman_choose_implementation (); #endif return global_implementation; } /* This function is exported for the sake of the test suite and not part * of the ABI. */ PIXMAN_EXPORT pixman_implementation_t * _pixman_internal_only_get_implementation (void); /* Memory allocation helpers */ void * pixman_malloc_ab (unsigned int n, unsigned int b); void * pixman_malloc_abc (unsigned int a, unsigned int b, unsigned int c); void * pixman_malloc_ab_plus_c (unsigned int a, unsigned int b, unsigned int c); pixman_bool_t _pixman_multiply_overflows_size (size_t a, size_t b); pixman_bool_t _pixman_multiply_overflows_int (unsigned int a, unsigned int b); pixman_bool_t _pixman_addition_overflows_int (unsigned int a, unsigned int b); /* Compositing utilities */ void pixman_expand_to_float (argb_t *dst, const uint32_t *src, pixman_format_code_t format, int width); void pixman_contract_from_float (uint32_t *dst, const argb_t *src, int width); /* Region Helpers */ pixman_bool_t pixman_region32_copy_from_region16 (pixman_region32_t *dst, const pixman_region16_t *src); pixman_bool_t pixman_region16_copy_from_region32 (pixman_region16_t *dst, const pixman_region32_t *src); /* Doubly linked lists */ typedef struct pixman_link_t pixman_link_t; struct pixman_link_t { pixman_link_t *next; pixman_link_t *prev; }; typedef struct pixman_list_t pixman_list_t; struct pixman_list_t { pixman_link_t *head; pixman_link_t *tail; }; static force_inline void pixman_list_init (pixman_list_t *list) { list->head = (pixman_link_t *)list; list->tail = (pixman_link_t *)list; } static force_inline void pixman_list_prepend (pixman_list_t *list, pixman_link_t *link) { link->next = list->head; link->prev = (pixman_link_t *)list; list->head->prev = link; list->head = link; } static force_inline void pixman_list_unlink (pixman_link_t *link) { link->prev->next = link->next; link->next->prev = link->prev; } static force_inline void pixman_list_move_to_front (pixman_list_t *list, pixman_link_t *link) { pixman_list_unlink (link); pixman_list_prepend (list, link); } /* Misc macros */ #ifndef FALSE # define FALSE 0 #endif #ifndef TRUE # define TRUE 1 #endif #ifndef MIN # define MIN(a, b) ((a < b) ? a : b) #endif #ifndef MAX # define MAX(a, b) ((a > b) ? a : b) #endif /* Integer division that rounds towards -infinity */ #define DIV(a, b) \ ((((a) < 0) == ((b) < 0)) ? (a) / (b) : \ ((a) - (b) + 1 - (((b) < 0) << 1)) / (b)) /* Modulus that produces the remainder wrt. DIV */ #define MOD(a, b) ((a) < 0 ? ((b) - ((-(a) - 1) % (b))) - 1 : (a) % (b)) #define CLIP(v, low, high) ((v) < (low) ? (low) : ((v) > (high) ? (high) : (v))) #define FLOAT_IS_ZERO(f) (-FLT_MIN < (f) && (f) < FLT_MIN) /* Conversion between 8888 and 0565 */ static force_inline uint16_t convert_8888_to_0565 (uint32_t s) { /* The following code can be compiled into just 4 instructions on ARM */ uint32_t a, b; a = (s >> 3) & 0x1F001F; b = s & 0xFC00; a |= a >> 5; a |= b >> 5; return (uint16_t)a; } static force_inline uint32_t convert_0565_to_0888 (uint16_t s) { return (((((s) << 3) & 0xf8) | (((s) >> 2) & 0x7)) | ((((s) << 5) & 0xfc00) | (((s) >> 1) & 0x300)) | ((((s) << 8) & 0xf80000) | (((s) << 3) & 0x70000))); } static force_inline uint32_t convert_0565_to_8888 (uint16_t s) { return convert_0565_to_0888 (s) | 0xff000000; } /* Trivial versions that are useful in macros */ static force_inline uint32_t convert_8888_to_8888 (uint32_t s) { return s; } static force_inline uint32_t convert_x888_to_8888 (uint32_t s) { return s | 0xff000000; } static force_inline uint16_t convert_0565_to_0565 (uint16_t s) { return s; } #define PIXMAN_FORMAT_IS_WIDE(f) \ (PIXMAN_FORMAT_A (f) > 8 || \ PIXMAN_FORMAT_R (f) > 8 || \ PIXMAN_FORMAT_G (f) > 8 || \ PIXMAN_FORMAT_B (f) > 8 || \ PIXMAN_FORMAT_TYPE (f) == PIXMAN_TYPE_ARGB_SRGB) #ifdef WORDS_BIGENDIAN # define SCREEN_SHIFT_LEFT(x,n) ((x) << (n)) # define SCREEN_SHIFT_RIGHT(x,n) ((x) >> (n)) #else # define SCREEN_SHIFT_LEFT(x,n) ((x) >> (n)) # define SCREEN_SHIFT_RIGHT(x,n) ((x) << (n)) #endif static force_inline uint32_t unorm_to_unorm (uint32_t val, int from_bits, int to_bits) { uint32_t result; if (from_bits == 0) return 0; /* Delete any extra bits */ val &= ((1 << from_bits) - 1); if (from_bits >= to_bits) return val >> (from_bits - to_bits); /* Start out with the high bit of val in the high bit of result. */ result = val << (to_bits - from_bits); /* Copy the bits in result, doubling the number of bits each time, until * we fill all to_bits. Unrolled manually because from_bits and to_bits * are usually known statically, so the compiler can turn all of this * into a few shifts. */ #define REPLICATE() \ do \ { \ if (from_bits < to_bits) \ { \ result |= result >> from_bits; \ \ from_bits *= 2; \ } \ } \ while (0) REPLICATE(); REPLICATE(); REPLICATE(); REPLICATE(); REPLICATE(); return result; } uint16_t pixman_float_to_unorm (float f, int n_bits); float pixman_unorm_to_float (uint16_t u, int n_bits); /* * Various debugging code */ #define COMPILE_TIME_ASSERT(x) \ do { typedef int compile_time_assertion [(x)?1:-1]; } while (0) void _pixman_log_error (const char *function, const char *message); #define return_if_fail(expr) \ do \ { \ if (unlikely (!(expr))) \ { \ _pixman_log_error (FUNC, "The expression " # expr " was false"); \ return; \ } \ } \ while (0) #define return_val_if_fail(expr, retval) \ do \ { \ if (unlikely (!(expr))) \ { \ _pixman_log_error (FUNC, "The expression " # expr " was false"); \ return (retval); \ } \ } \ while (0) #define critical_if_fail(expr) \ do \ { \ if (unlikely (!(expr))) \ _pixman_log_error (FUNC, "The expression " # expr " was false"); \ } \ while (0) /* * Matrix */ typedef struct { pixman_fixed_48_16_t v[3]; } pixman_vector_48_16_t; PIXMAN_EXPORT pixman_bool_t pixman_transform_point_31_16 (const pixman_transform_t *t, const pixman_vector_48_16_t *v, pixman_vector_48_16_t *result); PIXMAN_EXPORT void pixman_transform_point_31_16_3d (const pixman_transform_t *t, const pixman_vector_48_16_t *v, pixman_vector_48_16_t *result); PIXMAN_EXPORT void pixman_transform_point_31_16_affine (const pixman_transform_t *t, const pixman_vector_48_16_t *v, pixman_vector_48_16_t *result); /* * Timers */ #ifdef PIXMAN_TIMERS static inline uint64_t oil_profile_stamp_rdtsc (void) { uint32_t hi, lo; __asm__ __volatile__ ("rdtsc\n" : "=a" (lo), "=d" (hi)); return lo | (((uint64_t)hi) << 32); } #define OIL_STAMP oil_profile_stamp_rdtsc typedef struct pixman_timer_t pixman_timer_t; struct pixman_timer_t { int initialized; const char * name; uint64_t n_times; uint64_t total; pixman_timer_t *next; }; extern int timer_defined; void pixman_timer_register (pixman_timer_t *timer); #define TIMER_BEGIN(tname) \ { \ static pixman_timer_t timer ## tname; \ uint64_t begin ## tname; \ \ if (!timer ## tname.initialized) \ { \ timer ## tname.initialized = 1; \ timer ## tname.name = # tname; \ pixman_timer_register (&timer ## tname); \ } \ \ timer ## tname.n_times++; \ begin ## tname = OIL_STAMP (); #define TIMER_END(tname) \ timer ## tname.total += OIL_STAMP () - begin ## tname; \ } #else #define TIMER_BEGIN(tname) #define TIMER_END(tname) #endif /* PIXMAN_TIMERS */ #endif /* __ASSEMBLER__ */ #endif /* PIXMAN_PRIVATE_H */