-/*
- * MMI optimized DSP utils
- * Copyright (c) 2000, 2001 Fabrice Bellard.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * 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>
- */
-
-#include "../dsputil.h"
-
-void ff_mmi_idct(DCTELEM * block);
-
-#include "mmi.h"
-
-
-static void clear_blocks_mmi(DCTELEM * blocks)
-{
- /* $4 = blocks */
- int i;
- for (i = 0; i < 6; i++) {
- sq($0, 0, $4);
- sq($0, 16, $4);
- sq($0, 32, $4);
- sq($0, 48, $4);
- sq($0, 64, $4);
- sq($0, 80, $4);
- sq($0, 96, $4);
- sq($0, 112, $4);
- __asm__ __volatile__("addi $4, $4, 128");
- }
-}
-
-
-static void put_pixels_clamped_mmi(const DCTELEM * block, UINT8 * pixels,
- int line_size)
-{
- /* $4 = block, $5 = pixels, $6 = line_size */
- __asm__ __volatile__("li $11, 255":::"$11");
- lq($4, 0, $12);
- pcpyld($11, $11, $11);
- pcpyh($11, $11);
-
-#define PUT(rs) \
- ppacb($0, $##rs, $##rs); \
- sd3(rs, 0, 5); \
- __asm__ __volatile__ ("add $5, $5, $6");
-
- pminh($12, $11, $12);
- pmaxh($12, $0, $12);
- lq($4, 16, $13);
- PUT(12);
-
- pminh($13, $11, $13);
- pmaxh($13, $0, $13);
- lq($4, 32, $12);
- PUT(13);
-
- pminh($12, $11, $12);
- pmaxh($12, $0, $12);
- lq($4, 48, $13);
- PUT(12);
-
- pminh($13, $11, $13);
- pmaxh($13, $0, $13);
- lq($4, 64, $12);
- PUT(13);
-
- pminh($12, $11, $12);
- pmaxh($12, $0, $12);
- lq($4, 80, $13);
- PUT(12);
-
- pminh($13, $11, $13);
- pmaxh($13, $0, $13);
- lq($4, 96, $12);
- PUT(13);
-
- pminh($12, $11, $12);
- pmaxh($12, $0, $12);
- lq($4, 112, $13);
- PUT(12);
-
- pminh($13, $11, $13);
- pmaxh($13, $0, $13);
- PUT(13);
-}
-
-/* todo
-static void add_pixels_clamped_mmi(const DCTELEM * block, UINT8 * pixels,
- int line_size)
-{
-}
-*/
-
-
-void dsputil_init_mmi(void)
-{
- put_pixels_clamped = put_pixels_clamped_mmi;
- //add_pixels_clamped = add_pixels_clamped_mmi;
- clear_blocks = clear_blocks_mmi;
- ff_idct = ff_mmi_idct;
-}
+/*
+ * MMI optimized DSP utils
+ * Copyright (c) 2000, 2001 Fabrice Bellard.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * 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
+ * clear_blocks_mmi() by BroadQ
+ */
+
+#include "../dsputil.h"
+#include "mmi.h"
+
+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)
+{
+ asm volatile(
+ ".set noreorder \n"
+ "addiu $9, %0, 768 \n"
+ "nop \n"
+ "1: \n"
+ "sq $0, 0(%0) \n"
+ "move $8, %0 \n"
+ "addi %0, %0, 64 \n"
+ "sq $0, 16($8) \n"
+ "slt $10, %0, $9 \n"
+ "sq $0, 32($8) \n"
+ "bnez $10, 1b \n"
+ "sq $0, 48($8) \n"
+ ".set reorder \n"
+ : "+r" (blocks) :: "$8", "$9", "memory" );
+}
+
+
+static void get_pixels_mmi(DCTELEM *block, const uint8_t *pixels, int line_size)
+{
+ asm volatile(
+ ".set push \n\t"
+ ".set mips3 \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(%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" (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)
+{
+ 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, %3 \n\t"
+ "sd $8, 0(%0) \n\t"
+ "add %0, %0, %3 \n\t"
+ "bgtz %2, 1b \n\t"
+ ".set pop \n\t"
+ : "+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)
+{
+ asm volatile (
+ ".set push \n\t"
+ ".set mips3 \n\t"
+ "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" (h) : "r" (line_size)
+ : "$8", "$9", "$10", "$11", "$12", "$13", "memory" );
+}
+
+
+void dsputil_init_mmi(DSPContext* c, AVCodecContext *avctx)
+{
+ const int idct_algo= avctx->idct_algo;
+
+ c->clear_blocks = clear_blocks_mmi;
+
+ c->put_pixels_tab[1][0] = put_pixels8_mmi;
+ c->put_no_rnd_pixels_tab[1][0] = put_pixels8_mmi;
+
+ c->put_pixels_tab[0][0] = put_pixels16_mmi;
+ c->put_no_rnd_pixels_tab[0][0] = put_pixels16_mmi;
+
+ c->get_pixels = get_pixels_mmi;
+
+ 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