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Several fixes to ieee1275 and big-endian video.

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This commit is contained in:
Vladimir 'phcoder' Serbinenko 2013-05-02 22:30:20 +02:00
parent 813c16222f
commit a8905e8ae8
18 changed files with 655 additions and 72 deletions
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13
grub-core/video/readers/jpeg.c
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@ -528,7 +528,11 @@ grub_jpeg_ycrcb_to_rgb (int yy, int cr, int cb, grub_uint8_t * rgb)
dd = 0;
if (dd > 255)
dd = 255;
#ifdef GRUB_CPU_WORDS_BIGENDIAN
rgb[2] = dd;
#else
*(rgb++) = dd;
#endif
/* Green */
dd = yy - ((cb * CONST (0.34414) + cr * CONST (0.71414)) >> SHIFT_BITS);
@ -536,7 +540,11 @@ grub_jpeg_ycrcb_to_rgb (int yy, int cr, int cb, grub_uint8_t * rgb)
dd = 0;
if (dd > 255)
dd = 255;
#ifdef GRUB_CPU_WORDS_BIGENDIAN
rgb[1] = dd;
#else
*(rgb++) = dd;
#endif
/* Blue */
dd = yy + ((cb * CONST (1.772)) >> SHIFT_BITS);
@ -544,7 +552,12 @@ grub_jpeg_ycrcb_to_rgb (int yy, int cr, int cb, grub_uint8_t * rgb)
dd = 0;
if (dd > 255)
dd = 255;
#ifdef GRUB_CPU_WORDS_BIGENDIAN
rgb[0] = dd;
rgb += 3;
#else
*(rgb++) = dd;
#endif
}
static grub_err_t