* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
- * MMI optimization by Leon van Stuivenberg <leonvs@iae.nl>
+ * MMI optimization by Leon van Stuivenberg
* clear_blocks_mmi() by BroadQ
*/
void ff_mmi_idct_put(uint8_t *dest, int line_size, DCTELEM *block);
void ff_mmi_idct_add(uint8_t *dest, int line_size, DCTELEM *block);
-
+void ff_mmi_idct(DCTELEM *block);
static void clear_blocks_mmi(DCTELEM * blocks)
{
static void get_pixels_mmi(DCTELEM *block, const uint8_t *pixels, int line_size)
{
- int i;
- for(i=0;i<8;i++) {
asm volatile(
".set push \n\t"
".set mips3 \n\t"
- "ld $8, 0(%1) \n\t"
- "add %1, %1, %2 \n\t"
+ "ld $8, 0(%0) \n\t"
+ "add %0, %0, %2 \n\t"
+ "ld $9, 0(%0) \n\t"
+ "add %0, %0, %2 \n\t"
+ "ld $10, 0(%0) \n\t"
"pextlb $8, $0, $8 \n\t"
- "sq $8, 0(%0) \n\t"
+ "sq $8, 0(%1) \n\t"
+ "add %0, %0, %2 \n\t"
+ "ld $8, 0(%0) \n\t"
+ "pextlb $9, $0, $9 \n\t"
+ "sq $9, 16(%1) \n\t"
+ "add %0, %0, %2 \n\t"
+ "ld $9, 0(%0) \n\t"
+ "pextlb $10, $0, $10 \n\t"
+ "sq $10, 32(%1) \n\t"
+ "add %0, %0, %2 \n\t"
+ "ld $10, 0(%0) \n\t"
+ "pextlb $8, $0, $8 \n\t"
+ "sq $8, 48(%1) \n\t"
+ "add %0, %0, %2 \n\t"
+ "ld $8, 0(%0) \n\t"
+ "pextlb $9, $0, $9 \n\t"
+ "sq $9, 64(%1) \n\t"
+ "add %0, %0, %2 \n\t"
+ "ld $9, 0(%0) \n\t"
+ "pextlb $10, $0, $10 \n\t"
+ "sq $10, 80(%1) \n\t"
+ "pextlb $8, $0, $8 \n\t"
+ "sq $8, 96(%1) \n\t"
+ "pextlb $9, $0, $9 \n\t"
+ "sq $9, 112(%1) \n\t"
".set pop \n\t"
- :: "r" (block), "r" (pixels), "r" (line_size) : "$8", "memory" );
- block += 8;
- }
+ : "+r" (pixels) : "r" (block), "r" (line_size) : "$8", "$9", "$10", "memory" );
}
static void put_pixels8_mmi(uint8_t *block, const uint8_t *pixels, int line_size, int h)
{
- int i;
- for(i=0; i<h; i++) {
asm volatile(
".set push \n\t"
".set mips3 \n\t"
+ "1: \n\t"
"ldr $8, 0(%1) \n\t"
+ "addiu %2, %2, -1 \n\t"
"ldl $8, 7(%1) \n\t"
- "add %1, %1, %2 \n\t"
+ "add %1, %1, %3 \n\t"
"sd $8, 0(%0) \n\t"
- "add %0, %0, %2 \n\t"
+ "add %0, %0, %3 \n\t"
+ "bgtz %2, 1b \n\t"
".set pop \n\t"
- :: "r" (block), "r" (pixels), "r" (line_size) : "$8", "memory" );
- }
+ : "+r" (block), "+r" (pixels), "+r" (h) : "r" (line_size)
+ : "$8", "memory" );
}
static void put_pixels16_mmi(uint8_t *block, const uint8_t *pixels, int line_size, int h)
{
- int i;
- for(i=0; i<(h>>2); i++) {
asm volatile (
".set push \n\t"
".set mips3 \n\t"
-#define PUTPIX16 \
- "ldr $8, 0(%1) \n\t" \
- "ldl $8, 7(%1) \n\t" \
- "ldr $9, 8(%1) \n\t" \
- "ldl $9, 15(%1) \n\t" \
- "add %1, %1, %2 \n\t" \
- "pcpyld $8, $9, $8 \n\t" \
- "sq $8, 0(%0) \n\t" \
- "add %0, %0, %2 \n\t"
- PUTPIX16
- PUTPIX16
- PUTPIX16
- PUTPIX16
+ "1: \n\t"
+ "ldr $8, 0(%1) \n\t"
+ "add $11, %1, %3 \n\t"
+ "ldl $8, 7(%1) \n\t"
+ "add $10, %0, %3 \n\t"
+ "ldr $9, 8(%1) \n\t"
+ "ldl $9, 15(%1) \n\t"
+ "ldr $12, 0($11) \n\t"
+ "add %1, $11, %3 \n\t"
+ "ldl $12, 7($11) \n\t"
+ "pcpyld $8, $9, $8 \n\t"
+ "sq $8, 0(%0) \n\t"
+ "ldr $13, 8($11) \n\t"
+ "addiu %2, %2, -2 \n\t"
+ "ldl $13, 15($11) \n\t"
+ "add %0, $10, %3 \n\t"
+ "pcpyld $12, $13, $12 \n\t"
+ "sq $12, 0($10) \n\t"
+ "bgtz %2, 1b \n\t"
".set pop \n\t"
- :: "r" (block), "r" (pixels), "r" (line_size) : "$8", "$9", "memory" );
- }
+ : "+r" (block), "+r" (pixels), "+r" (h) : "r" (line_size)
+ : "$8", "$9", "$10", "$11", "$12", "$13", "memory" );
}
if(idct_algo==FF_IDCT_AUTO || idct_algo==FF_IDCT_PS2){
c->idct_put= ff_mmi_idct_put;
c->idct_add= ff_mmi_idct_add;
+ c->idct = ff_mmi_idct;
c->idct_permutation_type= FF_LIBMPEG2_IDCT_PERM;
}
}
projects / libav.git / blobdiff