openharmony/third_party_ffmpeg
1
0
Fork 0
mirror of https://gitee.com/openharmony/third_party_ffmpeg synced 2024-11-27 13:10:37 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

15 bpp support

Browse Source 
Originally committed as revision 2736 to svn://svn.mplayerhq.hu/mplayer/trunk/postproc
This commit is contained in:
Michael Niedermayer 2001-11-06 13:26:43 +00:00
parent 574406bb06
commit 607379b38b
1 changed files with 88 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

88
postproc/yuv2rgb_template.c
View File

@ -23,6 +23,7 @@
* along with GNU Make; see the file COPYING. If not, write to
* the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
*
* 15 and 24 bpp support from Michael Niedermayer (michaelni@gmx.at)
*/
#include <stdio.h>
@ -229,6 +230,92 @@ YUV2RGB
__asm__ __volatile__ (EMMS);
}
static void yuv420_rgb15_mmx (uint8_t * image, uint8_t * py,
uint8_t * pu, uint8_t * pv,
int h_size, int v_size,
int rgb_stride, int y_stride, int uv_stride)
{
int even = 1;
int x, y;
__asm__ __volatile__ ("pxor %mm4, %mm4;" /* zero mm4 */ );
for (y = v_size; --y >= 0; ) {
uint8_t *_image = image;
uint8_t *_py = py;
uint8_t *_pu = pu;
uint8_t *_pv = pv;
/* load data for start of next scan line */
__asm__ __volatile__ (
"movd (%1), %%mm0;" /* Load 4 Cb 00 00 00 00 u3 u2 u1 u0 */
"movd (%2), %%mm1;" /* Load 4 Cr 00 00 00 00 v3 v2 v1 v0 */
"movq (%0), %%mm6;" /* Load 8 Y Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 */
: : "r" (_py), "r" (_pu), "r" (_pv));
for (x = h_size >> 3; --x >= 0; ) {
/* this mmx assembly code deals with SINGLE scan line at a time, it convert 8
pixels in each iteration */
__asm__ __volatile__ (
YUV2RGB
/* mask unneeded bits off */
"pand mmx_redmask, %%mm0;" /* b7b6b5b4 b3_0_0_0 b7b6b5b4 b3_0_0_0 */
"pand mmx_redmask, %%mm2;" /* g7g6g5g4 g3_0_0_0 g7g6g5g4 g3_0_0_0 */
"pand mmx_redmask, %%mm1;" /* r7r6r5r4 r3_0_0_0 r7r6r5r4 r3_0_0_0 */
"psrlw mmx_blueshift,%%mm0;" /* 0_0_0_b7 b6b5b4b3 0_0_0_b7 b6b5b4b3 */
"psrlw $1,%%mm1;" /* 0_r7r6r5 r4r3_0_0 0_r7r6r5 r4r3_0_0 */
"pxor %%mm4, %%mm4;" /* zero mm4 */
"movq %%mm0, %%mm5;" /* Copy B7-B0 */
"movq %%mm2, %%mm7;" /* Copy G7-G0 */
/* convert rgb24 plane to rgb16 pack for pixel 0-3 */
"punpcklbw %%mm4, %%mm2;" /* 0_0_0_0 0_0_0_0 g7g6g5g4 g3_0_0_0 */
"punpcklbw %%mm1, %%mm0;" /* r7r6r5r4 r3_0_0_0 0_0_0_b7 b6b5b4b3 */
"psllw $2, %%mm2;" /* 0_0_0_0 0_0_g7g6 g5g4g3_0 0_0_0_0 */
"por %%mm2, %%mm0;" /* 0_r7r6r5 r4r3g7g6 g5g4g3b7 b6b5b4b3 */
"movq 8 (%0), %%mm6;" /* Load 8 Y Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 */
MOVNTQ " %%mm0, (%3);" /* store pixel 0-3 */
/* convert rgb24 plane to rgb16 pack for pixel 0-3 */
"punpckhbw %%mm4, %%mm7;" /* 0_0_0_0 0_0_0_0 0_g7g6g5 g4g3_0_0 */
"punpckhbw %%mm1, %%mm5;" /* r7r6r5r4 r3_0_0_0 0_0_0_b7 b6b5b4b3 */
"psllw $2, %%mm7;" /* 0_0_0_0 0_0_g7g6 g5g4g3_0 0_0_0_0 */
"movd 4 (%1), %%mm0;" /* Load 4 Cb 00 00 00 00 u3 u2 u1 u0 */
"por %%mm7, %%mm5;" /* 0_r7r6r5 r4r3g7g6 g5g4g3b7 b6b5b4b3 */
"movd 4 (%2), %%mm1;" /* Load 4 Cr 00 00 00 00 v3 v2 v1 v0 */
MOVNTQ " %%mm5, 8 (%3);" /* store pixel 4-7 */
: : "r" (_py), "r" (_pu), "r" (_pv), "r" (_image));
_py += 8;
_pu += 4;
_pv += 4;
_image += 16;
}
if (!even) {
pu += uv_stride;
pv += uv_stride;
}
py += y_stride;
image += rgb_stride;
even = (!even);
}
__asm__ __volatile__ (EMMS);
}
static void yuv420_rgb24_mmx (uint8_t * image, uint8_t * py,
uint8_t * pu, uint8_t * pv,
int h_size, int v_size,
@ -435,6 +522,7 @@ YUV2RGB
yuv2rgb_fun yuv2rgb_init_mmx (int bpp, int mode)
{
// if (bpp == 15 || bpp == 16) {
if (bpp == 15 && mode == MODE_RGB) return yuv420_rgb15_mmx;
if (bpp == 16 && mode == MODE_RGB) return yuv420_rgb16_mmx;
if (bpp == 24 && mode == MODE_RGB) return yuv420_rgb24_mmx;
if (bpp == 32 && mode == MODE_RGB) return yuv420_argb32_mmx;