Chromium Code Reviews
chromiumcodereview-hr@appspot.gserviceaccount.com (chromiumcodereview-hr) | Please choose your nickname with Settings | Help | Chromium Project | Gerrit Changes | Sign out
(14)

Unified Diff: third_party/libvpx/source/libvpx/vp8/common/arm/armv6/dequantize_v6.asm

Issue 1158913006: Move libvpx from DEPS to src (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: add DEPS file with #include paths Created 5 years, 7 months ago
Use n/p to move between diff chunks; N/P to move between comments. Draft comments are only viewable by you.
Jump to:
View side-by-side diff with in-line comments
Download patch
Index: third_party/libvpx/source/libvpx/vp8/common/arm/armv6/dequantize_v6.asm
diff --git a/third_party/libvpx/source/libvpx/vp8/common/arm/armv6/dequantize_v6.asm b/third_party/libvpx/source/libvpx/vp8/common/arm/armv6/dequantize_v6.asm
new file mode 100644
index 0000000000000000000000000000000000000000..72f7e0ee57febf8af9c25d55f5d851c8f56dee6e
--- /dev/null
+++ b/third_party/libvpx/source/libvpx/vp8/common/arm/armv6/dequantize_v6.asm
@@ -0,0 +1,69 @@
+;
+; Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+;
+; Use of this source code is governed by a BSD-style license
+; that can be found in the LICENSE file in the root of the source
+; tree. An additional intellectual property rights grant can be found
+; in the file PATENTS. All contributing project authors may
+; be found in the AUTHORS file in the root of the source tree.
+;
+
+
+ EXPORT |vp8_dequantize_b_loop_v6|
+
+ AREA |.text|, CODE, READONLY ; name this block of code
+;-------------------------------
+;void vp8_dequantize_b_loop_v6(short *Q, short *DQC, short *DQ);
+; r0 short *Q,
+; r1 short *DQC
+; r2 short *DQ
+|vp8_dequantize_b_loop_v6| PROC
+ stmdb sp!, {r4-r9, lr}
+
+ ldr r3, [r0] ;load Q
+ ldr r4, [r1] ;load DQC
+ ldr r5, [r0, #4]
+ ldr r6, [r1, #4]
+
+ mov r12, #2 ;loop counter
+
+dequant_loop
+ smulbb r7, r3, r4 ;multiply
+ smultt r8, r3, r4
+ smulbb r9, r5, r6
+ smultt lr, r5, r6
+
+ ldr r3, [r0, #8]
+ ldr r4, [r1, #8]
+ ldr r5, [r0, #12]
+ ldr r6, [r1, #12]
+
+ strh r7, [r2], #2 ;store result
+ smulbb r7, r3, r4 ;multiply
+ strh r8, [r2], #2
+ smultt r8, r3, r4
+ strh r9, [r2], #2
+ smulbb r9, r5, r6
+ strh lr, [r2], #2
+ smultt lr, r5, r6
+
+ subs r12, r12, #1
+
+ add r0, r0, #16
+ add r1, r1, #16
+
+ ldrne r3, [r0]
+ strh r7, [r2], #2 ;store result
+ ldrne r4, [r1]
+ strh r8, [r2], #2
+ ldrne r5, [r0, #4]
+ strh r9, [r2], #2
+ ldrne r6, [r1, #4]
+ strh lr, [r2], #2
+
+ bne dequant_loop
+
+ ldmia sp!, {r4-r9, pc}
+ ENDP ;|vp8_dequantize_b_loop_v6|
+
+ END

Powered by Google App Engine
This is Rietveld 408576698