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Diffstat (limited to 'src/xine-engine/alphablend.h')
| -rw-r--r-- | src/xine-engine/alphablend.h | 136 |
1 files changed, 136 insertions, 0 deletions
diff --git a/src/xine-engine/alphablend.h b/src/xine-engine/alphablend.h new file mode 100644 index 000000000..ee784c4b1 --- /dev/null +++ b/src/xine-engine/alphablend.h @@ -0,0 +1,136 @@ +/* + * + * Copyright (C) 2000 Thomas Mirlacher + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * + * The author may be reached as <dent@linuxvideo.org> + * + *------------------------------------------------------------ + * + */ + +#ifndef __ALPHABLEND_H__ +#define __ALPHABLEND_H__ + +#include "video_out.h" + +typedef struct { + void *buffer; + int buffer_size; + + int disable_exact_blending; + + int offset_x, offset_y; +} alphablend_t; + +void _x_alphablend_init(alphablend_t *extra_data, xine_t *xine); +void _x_alphablend_free(alphablend_t *extra_data); + +/* _MSC_VER port changes */ +#undef ATTRIBUTE_PACKED +#undef PRAGMA_PACK_BEGIN +#undef PRAGMA_PACK_END + +#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 95) || defined(__ICC) +#define ATTRIBUTE_PACKED __attribute__ ((packed)) +#define PRAGMA_PACK 0 +#endif + +#if !defined(ATTRIBUTE_PACKED) +#define ATTRIBUTE_PACKED +#define PRAGMA_PACK 1 +#endif + +#if PRAGMA_PACK +#pragma pack(8) +#endif + +typedef struct { /* CLUT == Color LookUp Table */ + uint8_t cb : 8; + uint8_t cr : 8; + uint8_t y : 8; + uint8_t foo : 8; +} ATTRIBUTE_PACKED clut_t; + + +#if PRAGMA_PACK +#pragma pack() +#endif + +#define XX44_PALETTE_SIZE 32 + +typedef struct { + unsigned size; + unsigned max_used; + uint32_t cluts[XX44_PALETTE_SIZE]; + /* cache palette entries for both colors and hili_colors */ + int lookup_cache[OVL_PALETTE_SIZE*2]; +} xx44_palette_t; + + +void _x_blend_rgb16 (uint8_t * img, vo_overlay_t * img_overl, + int img_width, int img_height, + int dst_width, int dst_height, + alphablend_t *extra_data); + +void _x_blend_rgb24 (uint8_t * img, vo_overlay_t * img_overl, + int img_width, int img_height, + int dst_width, int dst_height, + alphablend_t *extra_data); + +void _x_blend_rgb32 (uint8_t * img, vo_overlay_t * img_overl, + int img_width, int img_height, + int dst_width, int dst_height, + alphablend_t *extra_data); + +void _x_blend_yuv (uint8_t *dst_base[3], vo_overlay_t * img_overl, + int dst_width, int dst_height, int dst_pitches[3], + alphablend_t *extra_data); + +void _x_blend_yuy2 (uint8_t * dst_img, vo_overlay_t * img_overl, + int dst_width, int dst_height, int dst_pitch, + alphablend_t *extra_data); + +/* + * This function isn't too smart about blending. We want to avoid creating new + * colors in the palette as a result from two non-zero colors needed to be + * blended. Instead we choose the color with the highest alpha value to be + * visible. Some parts of the code taken from the "VeXP" project. + */ + +void _x_blend_xx44 (uint8_t *dst_img, vo_overlay_t *img_overl, + int dst_width, int dst_height, int dst_pitch, + alphablend_t *extra_data, + xx44_palette_t *palette,int ia44); + +/* + * Functions to handle the xine-specific palette. + */ + +void _x_clear_xx44_palette(xx44_palette_t *p); +void _x_init_xx44_palette(xx44_palette_t *p, unsigned num_entries); +void _x_dispose_xx44_palette(xx44_palette_t *p); + +/* + * Convert the xine-specific palette to something useful. + */ + +void _x_xx44_to_xvmc_palette(const xx44_palette_t *p,unsigned char *xvmc_palette, + unsigned first_xx44_entry, unsigned num_xx44_entries, + unsigned num_xvmc_components, char *xvmc_components); + + +#endif |