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Evas ETC2: Remove some useless operations 

No need to write out alpha in a RGBA color when only
the RGB values are used by the distance op.

Also, add a comment on the byte order. Maybe I'm wrong
but I believe the operations are fine wrt. byte order :)
This commit is contained in:
Jean-Philippe Andre 2014-06-23 09:31:15 +09:00
parent 5f52f5c9e5
commit 37431fb1a1
1 changed files with 14 additions and 1 deletions
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15
src/static_libs/rg_etc/etc2_encoder.c
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@ -129,6 +129,14 @@ absi(int a)
#define G_VAL(v) ((uint8_t) ((v & 0x0000FF00) >> 8))
#define B_VAL(v) ((uint8_t) ((v & 0x000000FF)))
#ifndef WORDS_BIGENDIAN
# define RGB_START 0
# define RGB_END 2
#else
# define RGB_START 1
# define RGB_END 3
#endif
#ifndef DBG
# ifdef DEBUG
# define DBG(fmt, ...) fprintf(stderr, "%s:%d: " fmt "\n", __FUNCTION__, __LINE__, ## __VA_ARGS__)
@ -463,6 +471,10 @@ _etc2_th_mode_block_pack(uint8_t *etc2, Eina_Bool h_mode,
} paint_colors[4], color1, color2;
int errAcc = 0;
paint_colors[0].v = 0;
paint_colors[1].v = 0;
paint_colors[2].v = 0;
paint_colors[3].v = 0;
color1.v = c1;
color2.v = c2;
@ -488,7 +500,8 @@ _etc2_th_mode_block_pack(uint8_t *etc2, Eina_Bool h_mode,
}
}
for (int k = 0; k < 4; k++)
// Set paint_colors using R,G,B values (byte order is preserved)
for (int k = RGB_START; k <= RGB_END; k++)
{
if (!h_mode)
{