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15 bpp support
Originally committed as revision 2736 to svn://svn.mplayerhq.hu/mplayer/trunk/postproc
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@ -23,6 +23,7 @@
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* along with GNU Make; see the file COPYING. If not, write to
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* the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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* 15 and 24 bpp support from Michael Niedermayer (michaelni@gmx.at)
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*/
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#include <stdio.h>
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@ -229,6 +230,92 @@ YUV2RGB
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__asm__ __volatile__ (EMMS);
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}
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static void yuv420_rgb15_mmx (uint8_t * image, uint8_t * py,
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uint8_t * pu, uint8_t * pv,
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int h_size, int v_size,
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int rgb_stride, int y_stride, int uv_stride)
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{
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int even = 1;
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int x, y;
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__asm__ __volatile__ ("pxor %mm4, %mm4;" /* zero mm4 */ );
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for (y = v_size; --y >= 0; ) {
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uint8_t *_image = image;
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uint8_t *_py = py;
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uint8_t *_pu = pu;
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uint8_t *_pv = pv;
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/* load data for start of next scan line */
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__asm__ __volatile__ (
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"movd (%1), %%mm0;" /* Load 4 Cb 00 00 00 00 u3 u2 u1 u0 */
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"movd (%2), %%mm1;" /* Load 4 Cr 00 00 00 00 v3 v2 v1 v0 */
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"movq (%0), %%mm6;" /* Load 8 Y Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 */
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: : "r" (_py), "r" (_pu), "r" (_pv));
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for (x = h_size >> 3; --x >= 0; ) {
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/* this mmx assembly code deals with SINGLE scan line at a time, it convert 8
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pixels in each iteration */
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__asm__ __volatile__ (
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YUV2RGB
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/* mask unneeded bits off */
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"pand mmx_redmask, %%mm0;" /* b7b6b5b4 b3_0_0_0 b7b6b5b4 b3_0_0_0 */
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"pand mmx_redmask, %%mm2;" /* g7g6g5g4 g3_0_0_0 g7g6g5g4 g3_0_0_0 */
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"pand mmx_redmask, %%mm1;" /* r7r6r5r4 r3_0_0_0 r7r6r5r4 r3_0_0_0 */
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"psrlw mmx_blueshift,%%mm0;" /* 0_0_0_b7 b6b5b4b3 0_0_0_b7 b6b5b4b3 */
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"psrlw $1,%%mm1;" /* 0_r7r6r5 r4r3_0_0 0_r7r6r5 r4r3_0_0 */
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"pxor %%mm4, %%mm4;" /* zero mm4 */
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"movq %%mm0, %%mm5;" /* Copy B7-B0 */
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"movq %%mm2, %%mm7;" /* Copy G7-G0 */
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/* convert rgb24 plane to rgb16 pack for pixel 0-3 */
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"punpcklbw %%mm4, %%mm2;" /* 0_0_0_0 0_0_0_0 g7g6g5g4 g3_0_0_0 */
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"punpcklbw %%mm1, %%mm0;" /* r7r6r5r4 r3_0_0_0 0_0_0_b7 b6b5b4b3 */
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"psllw $2, %%mm2;" /* 0_0_0_0 0_0_g7g6 g5g4g3_0 0_0_0_0 */
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"por %%mm2, %%mm0;" /* 0_r7r6r5 r4r3g7g6 g5g4g3b7 b6b5b4b3 */
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"movq 8 (%0), %%mm6;" /* Load 8 Y Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 */
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MOVNTQ " %%mm0, (%3);" /* store pixel 0-3 */
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/* convert rgb24 plane to rgb16 pack for pixel 0-3 */
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"punpckhbw %%mm4, %%mm7;" /* 0_0_0_0 0_0_0_0 0_g7g6g5 g4g3_0_0 */
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"punpckhbw %%mm1, %%mm5;" /* r7r6r5r4 r3_0_0_0 0_0_0_b7 b6b5b4b3 */
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"psllw $2, %%mm7;" /* 0_0_0_0 0_0_g7g6 g5g4g3_0 0_0_0_0 */
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"movd 4 (%1), %%mm0;" /* Load 4 Cb 00 00 00 00 u3 u2 u1 u0 */
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"por %%mm7, %%mm5;" /* 0_r7r6r5 r4r3g7g6 g5g4g3b7 b6b5b4b3 */
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"movd 4 (%2), %%mm1;" /* Load 4 Cr 00 00 00 00 v3 v2 v1 v0 */
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MOVNTQ " %%mm5, 8 (%3);" /* store pixel 4-7 */
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: : "r" (_py), "r" (_pu), "r" (_pv), "r" (_image));
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_py += 8;
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_pu += 4;
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_pv += 4;
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_image += 16;
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}
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if (!even) {
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pu += uv_stride;
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pv += uv_stride;
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}
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py += y_stride;
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image += rgb_stride;
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even = (!even);
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}
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__asm__ __volatile__ (EMMS);
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}
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static void yuv420_rgb24_mmx (uint8_t * image, uint8_t * py,
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uint8_t * pu, uint8_t * pv,
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int h_size, int v_size,
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@ -435,6 +522,7 @@ YUV2RGB
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yuv2rgb_fun yuv2rgb_init_mmx (int bpp, int mode)
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{
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// if (bpp == 15 || bpp == 16) {
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if (bpp == 15 && mode == MODE_RGB) return yuv420_rgb15_mmx;
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if (bpp == 16 && mode == MODE_RGB) return yuv420_rgb16_mmx;
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if (bpp == 24 && mode == MODE_RGB) return yuv420_rgb24_mmx;
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if (bpp == 32 && mode == MODE_RGB) return yuv420_argb32_mmx;
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