forked from enlightenment/efl
210 lines
6.5 KiB
C
210 lines
6.5 KiB
C
#include "evas_common.h"
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#ifdef USE_DITHER_44
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extern const DATA8 _dither_44[4][4];
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#endif
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#ifdef USE_DITHER_128128
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extern const DATA8 _dither_128128[128][128];
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#endif
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#ifdef BUILD_CONVERT_8_RGB_332
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void evas_common_convert_rgba_to_8bpp_rgb_332_dith (DATA32 *src, DATA8 *dst, int src_jump, int dst_jump, int w, int h, int dith_x, int dith_y, DATA8 *pal)
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{
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DATA32 *src_ptr;
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DATA8 *dst_ptr;
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int x, y;
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DATA8 r, g, b;
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DATA8 dith, dith2;
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dst_ptr = (DATA8 *)dst;
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CONVERT_LOOP_START_ROT_0();
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r = (R_VAL(src_ptr)) >> (8 - 3);
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g = (G_VAL(src_ptr)) >> (8 - 3);
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b = (B_VAL(src_ptr)) >> (8 - 2);
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dith = DM_TABLE[(x + dith_x) & DM_MSK][(y + dith_y) & DM_MSK] >> DM_SHF(3);
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dith2 = DM_TABLE[(x + dith_x) & DM_MSK][(y + dith_y) & DM_MSK] >> DM_SHF(2);
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if (((R_VAL(src_ptr) - (r << (8 - 3))) >= dith ) && (r < 0x07)) r++;
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if (((G_VAL(src_ptr) - (g << (8 - 3))) >= dith ) && (g < 0x07)) g++;
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if (((B_VAL(src_ptr) - (b << (8 - 2))) >= dith2) && (b < 0x03)) b++;
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*dst_ptr = pal[(r << 5) | (g << 2) | (b)];
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CONVERT_LOOP_END_ROT_0();
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}
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#endif
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#ifdef BUILD_CONVERT_8_RGB_666
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static DATA8 p_to_6[256];
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static DATA8 p_to_6_err[256];
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void evas_common_convert_rgba_to_8bpp_rgb_666_dith (DATA32 *src, DATA8 *dst, int src_jump, int dst_jump, int w, int h, int dith_x, int dith_y, DATA8 *pal)
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{
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DATA32 *src_ptr;
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DATA8 *dst_ptr;
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int x, y;
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DATA8 r, g, b;
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DATA8 dith;
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static int tables_calcualted = 0;
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if (!tables_calcualted)
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{
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int i;
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tables_calcualted = 1;
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for (i = 0; i < 256; i++)
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p_to_6[i] = (i * 6) / 256;
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for (i = 0; i < 256; i++)
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p_to_6_err[i] = ((i * 6) - (p_to_6[i] * 256)) * DM_DIV / 256;
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}
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dst_ptr = (DATA8 *)dst;
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CONVERT_LOOP_START_ROT_0();
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r = p_to_6[(R_VAL(src_ptr))];
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g = p_to_6[(G_VAL(src_ptr))];
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b = p_to_6[(B_VAL(src_ptr))];
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dith = DM_TABLE[(x + dith_x) & DM_MSK][(y + dith_y) & DM_MSK];
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if ((p_to_6_err[(R_VAL(src_ptr))] >= dith ) && (r < 5)) r++;
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if ((p_to_6_err[(G_VAL(src_ptr))] >= dith ) && (g < 5)) g++;
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if ((p_to_6_err[(B_VAL(src_ptr))] >= dith ) && (b < 5)) b++;
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*dst_ptr = pal[(r * 36) + (g * 6) + (b)];
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CONVERT_LOOP_END_ROT_0();
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}
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#endif
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#ifdef BUILD_CONVERT_8_RGB_232
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void evas_common_convert_rgba_to_8bpp_rgb_232_dith (DATA32 *src, DATA8 *dst, int src_jump, int dst_jump, int w, int h, int dith_x, int dith_y, DATA8 *pal)
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{
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DATA32 *src_ptr;
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DATA8 *dst_ptr;
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int x, y;
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DATA8 r, g, b;
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DATA8 dith, dith2;
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dst_ptr = (DATA8 *)dst;
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CONVERT_LOOP_START_ROT_0();
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r = (R_VAL(src_ptr)) >> (8 - 2);
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g = (G_VAL(src_ptr)) >> (8 - 3);
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b = (B_VAL(src_ptr)) >> (8 - 2);
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dith = DM_TABLE[(x + dith_x) & DM_MSK][(y + dith_y) & DM_MSK] >> DM_SHF(3);
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dith2 = DM_TABLE[(x + dith_x) & DM_MSK][(y + dith_y) & DM_MSK] >> DM_SHF(2);
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if (((R_VAL(src_ptr) - (r << (8 - 2))) >= dith2) && (r < 0x03)) r++;
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if (((G_VAL(src_ptr) - (g << (8 - 3))) >= dith ) && (g < 0x07)) g++;
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if (((B_VAL(src_ptr) - (b << (8 - 2))) >= dith2) && (b < 0x03)) b++;
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*dst_ptr = pal[(r << 5) | (g << 2) | (b)];
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CONVERT_LOOP_END_ROT_0();
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}
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#endif
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#ifdef BUILD_CONVERT_8_RGB_222
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void evas_common_convert_rgba_to_8bpp_rgb_222_dith (DATA32 *src, DATA8 *dst, int src_jump, int dst_jump, int w, int h, int dith_x, int dith_y, DATA8 *pal)
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{
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DATA32 *src_ptr;
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DATA8 *dst_ptr;
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int x, y;
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DATA8 r, g, b;
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DATA8 dith;
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dst_ptr = (DATA8 *)dst;
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CONVERT_LOOP_START_ROT_0();
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r = (R_VAL(src_ptr)) >> (8 - 2);
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g = (G_VAL(src_ptr)) >> (8 - 2);
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b = (B_VAL(src_ptr)) >> (8 - 2);
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dith = DM_TABLE[(x + dith_x) & DM_MSK][(y + dith_y) & DM_MSK] >> DM_SHF(2);
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if (((R_VAL(src_ptr) - (r << (8 - 2))) >= dith ) && (r < 0x03)) r++;
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if (((G_VAL(src_ptr) - (g << (8 - 2))) >= dith ) && (g < 0x03)) g++;
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if (((B_VAL(src_ptr) - (b << (8 - 2))) >= dith ) && (b < 0x03)) b++;
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*dst_ptr = pal[(r << 4) | (g << 2) | (b)];
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CONVERT_LOOP_END_ROT_0();
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}
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#endif
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#ifdef BUILD_CONVERT_8_RGB_221
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void evas_common_convert_rgba_to_8bpp_rgb_221_dith (DATA32 *src, DATA8 *dst, int src_jump, int dst_jump, int w, int h, int dith_x, int dith_y, DATA8 *pal)
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{
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DATA32 *src_ptr;
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DATA8 *dst_ptr;
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int x, y;
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DATA8 r, g, b;
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DATA8 dith, dith2;
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dst_ptr = (DATA8 *)dst;
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CONVERT_LOOP_START_ROT_0();
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r = (R_VAL(src_ptr)) >> (8 - 2);
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g = (G_VAL(src_ptr)) >> (8 - 2);
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b = (B_VAL(src_ptr)) >> (8 - 1);
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dith = DM_TABLE[(x + dith_x) & DM_MSK][(y + dith_y) & DM_MSK] >> DM_SHF(2);
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dith2 = DM_TABLE[(x + dith_x) & DM_MSK][(y + dith_y) & DM_MSK] >> DM_SHF(1);
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if (((R_VAL(src_ptr) - (r << (8 - 2))) >= dith ) && (r < 0x03)) r++;
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if (((G_VAL(src_ptr) - (g << (8 - 2))) >= dith ) && (g < 0x03)) g++;
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if (((B_VAL(src_ptr) - (b << (8 - 1))) >= dith2) && (b < 0x01)) b++;
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*dst_ptr = pal[(r << 3) | (g << 1) | (b)];
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CONVERT_LOOP_END_ROT_0();
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}
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#endif
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#ifdef BUILD_CONVERT_8_RGB_121
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void evas_common_convert_rgba_to_8bpp_rgb_121_dith (DATA32 *src, DATA8 *dst, int src_jump, int dst_jump, int w, int h, int dith_x, int dith_y, DATA8 *pal)
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{
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DATA32 *src_ptr;
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DATA8 *dst_ptr;
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int x, y;
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DATA8 r, g, b;
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DATA8 dith, dith2;
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dst_ptr = (DATA8 *)dst;
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CONVERT_LOOP_START_ROT_0();
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r = (R_VAL(src_ptr)) >> (8 - 1);
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g = (G_VAL(src_ptr)) >> (8 - 2);
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b = (B_VAL(src_ptr)) >> (8 - 1);
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dith = DM_TABLE[(x + dith_x) & DM_MSK][(y + dith_y) & DM_MSK] >> DM_SHF(2);
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dith2 = DM_TABLE[(x + dith_x) & DM_MSK][(y + dith_y) & DM_MSK] >> DM_SHF(1);
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if (((R_VAL(src_ptr) - (r << (8 - 1))) >= dith2) && (r < 0x01)) r++;
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if (((G_VAL(src_ptr) - (g << (8 - 2))) >= dith ) && (g < 0x03)) g++;
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if (((B_VAL(src_ptr) - (b << (8 - 1))) >= dith2) && (b < 0x01)) b++;
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*dst_ptr = pal[(r << 3) | (g << 1) | (b)];
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CONVERT_LOOP_END_ROT_0();
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}
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#endif
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#ifdef BUILD_CONVERT_8_RGB_111
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void evas_common_convert_rgba_to_8bpp_rgb_111_dith (DATA32 *src, DATA8 *dst, int src_jump, int dst_jump, int w, int h, int dith_x, int dith_y, DATA8 *pal)
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{
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DATA32 *src_ptr;
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DATA8 *dst_ptr;
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int x, y;
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DATA8 r, g, b;
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DATA8 dith;
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dst_ptr = (DATA8 *)dst;
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CONVERT_LOOP_START_ROT_0();
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r = (R_VAL(src_ptr)) >> (8 - 1);
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g = (G_VAL(src_ptr)) >> (8 - 1);
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b = (B_VAL(src_ptr)) >> (8 - 1);
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dith = DM_TABLE[(x + dith_x) & DM_MSK][(y + dith_y) & DM_MSK] >> DM_SHF(1);
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if (((R_VAL(src_ptr) - (r << (8 - 1))) >= dith ) && (r < 0x01)) r++;
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if (((G_VAL(src_ptr) - (g << (8 - 1))) >= dith ) && (g < 0x01)) g++;
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if (((B_VAL(src_ptr) - (b << (8 - 1))) >= dith ) && (b < 0x01)) b++;
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*dst_ptr = pal[(r << 2) | (g << 1) | (b)];
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CONVERT_LOOP_END_ROT_0();
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}
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#endif
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