forked from enlightenment/efl
117 lines
3.8 KiB
C
117 lines
3.8 KiB
C
#ifndef EFL_DRAW_H
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#define EFL_DRAW_H
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#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif
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#include <Eina.h>
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#include "efl/interfaces/efl_gfx_types.eot.h"
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/* FIXME: naming convention */
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/* FIXME: mul_col & const_alpha are redondant */
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typedef void (*RGBA_Comp_Func) (uint32_t *dest, const uint32_t *src, int length, uint32_t mul_col, uint32_t const_alpha);
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typedef void (*RGBA_Comp_Func_Solid) (uint32_t *dest, int length, uint32_t color, uint32_t const_alpha);
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typedef void (*RGBA_Comp_Func_Mask) (uint32_t *dest, const uint8_t *mask, int length, uint32_t color);
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typedef void (*Draw_Func_ARGB_Mix3) (uint32_t *dest, const uint32_t *src, const uint32_t *mul, int len, uint32_t color);
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typedef void (*Draw_Func_Alpha) (uint8_t *dest, const uint8_t *src, int len);
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typedef Eina_Bool (*Cspace_Convert_Func) (void *dst, const void *src, int w, int h, int src_stride, int dst_stride, Eina_Bool has_alpha, Efl_Gfx_Colorspace srccs, Efl_Gfx_Colorspace dstcs);
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int efl_draw_init(void);
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RGBA_Comp_Func efl_draw_func_span_get (Efl_Gfx_Render_Op op, uint32_t color, Eina_Bool src_alpha);
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RGBA_Comp_Func_Solid efl_draw_func_solid_span_get (Efl_Gfx_Render_Op op, uint32_t color);
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RGBA_Comp_Func_Mask efl_draw_func_mask_span_get (Efl_Gfx_Render_Op op, uint32_t color);
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Draw_Func_ARGB_Mix3 efl_draw_func_argb_mix3_get (Efl_Gfx_Render_Op op, uint32_t color);
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Draw_Func_Alpha efl_draw_alpha_func_get (Efl_Gfx_Render_Op op, Eina_Bool has_mask);
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Cspace_Convert_Func efl_draw_convert_func_get (Efl_Gfx_Colorspace origcs, Efl_Gfx_Colorspace dstcs, Eina_Bool *region_can);
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int efl_draw_argb_premul(uint32_t *data, unsigned int len);
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void efl_draw_argb_unpremul(uint32_t *data, unsigned int len);
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/* common sw draw helpers */
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#ifndef MIN
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#define MIN( a, b ) ( (a) < (b) ? (a) : (b) )
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#endif
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#ifndef MAX
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#define MAX( a, b ) ( (a) > (b) ? (a) : (b) )
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#endif
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#ifndef A_VAL
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#ifndef WORDS_BIGENDIAN
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/* x86 */
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#define A_VAL(p) (((uint8_t *)(p))[3])
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#define R_VAL(p) (((uint8_t *)(p))[2])
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#define G_VAL(p) (((uint8_t *)(p))[1])
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#define B_VAL(p) (((uint8_t *)(p))[0])
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#define AR_VAL(p) ((uint16_t *)(p)[1])
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#define GB_VAL(p) ((uint16_t *)(p)[0])
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#else
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/* ppc */
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#define A_VAL(p) (((uint8_t *)(p))[0])
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#define R_VAL(p) (((uint8_t *)(p))[1])
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#define G_VAL(p) (((uint8_t *)(p))[2])
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#define B_VAL(p) (((uint8_t *)(p))[3])
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#define AR_VAL(p) ((uint16_t *)(p)[0])
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#define GB_VAL(p) ((uint16_t *)(p)[1])
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#endif
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#endif
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#define DRAW_ARGB_JOIN(a,r,g,b) \
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(((a) << 24) + ((r) << 16) + ((g) << 8) + (b))
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/* argb multiply */
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#define DRAW_MUL4_SYM(x, y) \
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( ((((((x) >> 16) & 0xff00) * (((y) >> 16) & 0xff00)) + 0xff0000) & 0xff000000) + \
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((((((x) >> 8) & 0xff00) * (((y) >> 16) & 0xff)) + 0xff00) & 0xff0000) + \
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((((((x) & 0xff00) * ((y) & 0xff00)) + 0xff0000) >> 16) & 0xff00) + \
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(((((x) & 0xff) * ((y) & 0xff)) + 0xff) >> 8) )
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/* alpha from 1 to 256 */
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static inline uint32_t
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draw_mul_256(int a, uint32_t c)
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{
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return (((((c) >> 8) & 0x00ff00ff) * (a)) & 0xff00ff00) |
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(((((c) & 0x00ff00ff) * (a)) >> 8) & 0x00ff00ff);
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}
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static inline uint32_t
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draw_interpolate_256(uint32_t x, int a, uint32_t y, int b)
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{
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uint32_t t = (x & 0xff00ff) * a + (y & 0xff00ff) * b;
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t >>= 8;
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t &= 0xff00ff;
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x = ((x >> 8) & 0xff00ff) * a + ((y >> 8) & 0xff00ff) * b;
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x &= 0xff00ff00;
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x |= t;
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return x;
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}
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static inline void
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draw_memset32(uint32_t *dest, uint32_t value, int length)
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{
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int n;
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if (length <= 0)
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return;
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n = (length + 7) / 8;
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switch (length & 0x07)
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{
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case 0: do { *dest++ = value;
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case 7: *dest++ = value;
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case 6: *dest++ = value;
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case 5: *dest++ = value;
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case 4: *dest++ = value;
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case 3: *dest++ = value;
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case 2: *dest++ = value;
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case 1: *dest++ = value;
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} while (--n > 0);
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}
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}
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#endif
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