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path: root/apps/codecs/libfaad/decoder.c (unfollow)
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2008-09-04Combine the Vorbis, WMA and AAC IMDCT functions and put them into the ↵Michael Giacomelli
codeclib. Combined IMDCT is now based on existing Tremor transform. Reduces CPU for 192k AAC by 21MHz on Coldfire, and 5MHz on PP5024. WMA and Vorbis should have no functional changes since they already used this code. Further optimization is possible and would benefit all 3 codecs. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@18412 a1c6a512-1295-4272-9138-f99709370657
2007-05-10Code cleaning - remove some unnecessary defined(SIMULATOR) checksDave Chapman
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@13369 a1c6a512-1295-4272-9138-f99709370657
2005-11-02Use direct non-interleaved full precision output data instead of converting ↵Thom Johansen
to 16 bit interleaved data. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@7734 a1c6a512-1295-4272-9138-f99709370657
2005-11-02Better place for EMAC init.Thom Johansen
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@7733 a1c6a512-1295-4272-9138-f99709370657
2005-11-01Init EMAC properly.Thom Johansen
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@7715 a1c6a512-1295-4272-9138-f99709370657
2005-10-31Changes to make libfaad compile in Rockbox. Also remove compiler warnings, ↵Dave Chapman
use some IRAM (IRAM usage needs reviewing) and drastically reduce the stack usage git-svn-id: svn://svn.rockbox.org/rockbox/trunk@7700 a1c6a512-1295-4272-9138-f99709370657
2005-10-31Initial check-in of unmodified libfaad (part of the FAAD2 project). This is ↵Dave Chapman
the last version of libfaad available under the GPL - the state of FAAD2 CVS at midnight on 2005-02-01 git-svn-id: svn://svn.rockbox.org/rockbox/trunk@7699 a1c6a512-1295-4272-9138-f99709370657
generated by cgit v1.1 at 2026-05-17 09:34:50 +0000
://libmpeg2.sourceforge.net/ for updates. * * mpeg2dec is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * mpeg2dec 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 General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #include "plugin.h" #include "mpeg2dec_config.h" #include "mpeg2.h" #include "attributes.h" #include "mpeg2_internal.h" #ifdef ARCH_X86 #include "mmx.h" #endif void (* mpeg2_cpu_state_save) (cpu_state_t * state) = NULL; void (* mpeg2_cpu_state_restore) (cpu_state_t * state) = NULL; #ifdef ARCH_X86 static void state_restore_mmx (cpu_state_t * state) { emms (); } #endif #ifdef ARCH_PPC #ifdef HAVE_ALTIVEC_H /* gnu */ #define LI(a,b) "li " #a "," #b "\n\t" #define STVX0(a,b,c) "stvx " #a ",0," #c "\n\t" #define STVX(a,b,c) "stvx " #a "," #b "," #c "\n\t" #define LVX0(a,b,c) "lvx " #a ",0," #c "\n\t" #define LVX(a,b,c) "lvx " #a "," #b "," #c "\n\t" #else /* apple */ #define LI(a,b) "li r" #a "," #b "\n\t" #define STVX0(a,b,c) "stvx v" #a ",0,r" #c "\n\t" #define STVX(a,b,c) "stvx v" #a ",r" #b ",r" #c "\n\t" #define LVX0(a,b,c) "lvx v" #a ",0,r" #c "\n\t" #define LVX(a,b,c) "lvx v" #a ",r" #b ",r" #c "\n\t" #endif static void state_save_altivec (cpu_state_t * state) { asm (LI (9, 16) STVX0 (20, 0, 3) LI (11, 32) STVX (21, 9, 3) LI (9, 48) STVX (22, 11, 3) LI (11, 64) STVX (23, 9, 3) LI (9, 80) STVX (24, 11, 3) LI (11, 96) STVX (25, 9, 3) LI (9, 112) STVX (26, 11, 3) LI (11, 128) STVX (27, 9, 3) LI (9, 144) STVX (28, 11, 3) LI (11, 160) STVX (29, 9, 3) LI (9, 176) STVX (30, 11, 3) STVX (31, 9, 3)); } static void state_restore_altivec (cpu_state_t * state) { asm (LI (9, 16) LVX0 (20, 0, 3) LI (11, 32) LVX (21, 9, 3) LI (9, 48) LVX (22, 11, 3) LI (11, 64) LVX (23, 9, 3) LI (9, 80) LVX (24, 11, 3) LI (11, 96) LVX (25, 9, 3) LI (9, 112) LVX (26, 11, 3) LI (11, 128) LVX (27, 9, 3) LI (9, 144) LVX (28, 11, 3) LI (11, 160) LVX (29, 9, 3) LI (9, 176) LVX (30, 11, 3) LVX (31, 9, 3)); } #endif void mpeg2_cpu_state_init (uint32_t accel) { (void)accel; #ifdef ARCH_X86 if (accel & MPEG2_ACCEL_X86_MMX) { mpeg2_cpu_state_restore = state_restore_mmx; } #endif #ifdef ARCH_PPC if (accel & MPEG2_ACCEL_PPC_ALTIVEC) { mpeg2_cpu_state_save = state_save_altivec; mpeg2_cpu_state_restore = state_restore_altivec; } #endif }
generated by cgit v1.1 at 2026-05-17 09:34:41 +0000