]> git.sesse.net Git - ffmpeg/blobdiff - libswscale/arm/yuv2rgb_neon.S
Merge commit '01f0e6a0c9270f1d5bef08459a6f167cf55e0596'
[ffmpeg] / libswscale / arm / yuv2rgb_neon.S
index ee11e08cde33ef475ce537237e9d9ded769485a6..10950e70b4dbd69666df1c5974f4fee0907390f8 100644 (file)
 #include "libavutil/arm/asm.S"
 
 
-.macro compute_premult half_u1, half_u2, half_v1, half_v2
-    vmov                d2, \half_u1                                   @ copy left q14 to left q1
-    vmov                d3, \half_u1                                   @ copy left q14 to right q1
-    vmov                d4, \half_u2                                   @ copy right q14 to left q2
-    vmov                d5, \half_u2                                   @ copy right q14 to right q2
-
-    vmov                d6, \half_v1                                   @ copy left q15 to left q3
-    vmov                d7, \half_v1                                   @ copy left q15 to right q3
-    vmov                d8, \half_v2                                   @ copy right q15 to left q4
-    vmov                d9, \half_v2                                   @ copy right q15 to right q4
-
-    vzip.16             d2, d3                                         @ U1U1U2U2U3U3U4U4
-    vzip.16             d4, d5                                         @ U5U5U6U6U7U7U8U8
-
-    vzip.16             d6, d7                                         @ V1V1V2V2V3V3V4V4
-    vzip.16             d8, d9                                         @ V5V5V6V6V7V7V8V8
-
-    vmul.s16            q8,  q3, d1[0]                                 @  V * v2r             (left,  red)
-    vmul.s16            q9,  q4, d1[0]                                 @  V * v2r             (right, red)
-    vmul.s16            q10, q1, d1[1]                                 @  U * u2g
-    vmul.s16            q11, q2, d1[1]                                 @  U * u2g
-    vmla.s16            q10, q3, d1[2]                                 @  U * u2g + V * v2g   (left,  green)
-    vmla.s16            q11, q4, d1[2]                                 @  U * u2g + V * v2g   (right, green)
-    vmul.s16            q12, q1, d1[3]                                 @  U * u2b             (left,  blue)
-    vmul.s16            q13, q2, d1[3]                                 @  U * u2b             (right, blue)
+.macro compute_premult
+    vsub.u16            q14,q11                                        @ q14 = U * (1 << 3) - 128 * (1 << 3)
+    vsub.u16            q15,q11                                        @ q15 = V * (1 << 3) - 128 * (1 << 3)
+    vqdmulh.s16         q8, q15, d1[0]                                 @ q8  = V * v2r
+    vqdmulh.s16         q9, q14, d1[1]                                 @ q9  = U * u2g
+    vqdmulh.s16         q5, q15, d1[2]                                 @ q5  = V * v2g
+    vadd.s16            q9, q5                                         @ q9  = U * u2g + V * v2g
+    vqdmulh.s16         q10,q14, d1[3]                                 @ q10 = U * u2b
 .endm
 
-.macro compute_color dst_comp1 dst_comp2 pre1 pre2
-    vadd.s16            q1, q14, \pre1
-    vadd.s16            q2, q15, \pre2
-    vqrshrun.s16        \dst_comp1, q1, #6
-    vqrshrun.s16        \dst_comp2, q2, #6
+.macro compute_color dst_comp1 dst_comp2 pre
+    vadd.s16            q1, q14, \pre
+    vadd.s16            q2, q15, \pre
+    vqrshrun.s16        \dst_comp1, q1, #1
+    vqrshrun.s16        \dst_comp2, q2, #1
 .endm
 
 .macro compute_rgba r1 g1 b1 a1 r2 g2 b2 a2
-    compute_color       \r1, \r2, q8, q9
-    compute_color       \g1, \g2, q10, q11
-    compute_color       \b1, \b2, q12, q13
+    compute_color       \r1, \r2, q8
+    compute_color       \g1, \g2, q9
+    compute_color       \b1, \b2, q10
     vmov.u8             \a1, #255
     vmov.u8             \a2, #255
 .endm
 
-.macro compute dst y0 y1 ofmt
-    vmovl.u8            q14, \y0                                       @ 8px of y
-    vmovl.u8            q15, \y1                                       @ 8px of y
-
-    vdup.16             q5, r9                                         @ q5  = y_offset
-    vmov                d14, d0                                        @ q7  = y_coeff
-    vmov                d15, d0                                        @ q7  = y_coeff
-
-    vsub.s16            q14, q5
-    vsub.s16            q15, q5
-
-    vmul.s16            q14, q7                                        @ q14 = (srcY - y_offset) * y_coeff (left)
-    vmul.s16            q15, q7                                        @ q15 = (srcY - y_offset) * y_coeff (right)
-
+.macro compute dst ofmt
+    vshll.u8            q14, d14, #3                                   @ q14 = Y * (1 << 3)
+    vshll.u8            q15, d15, #3                                   @ q15 = Y * (1 << 3)
+    vsub.s16            q14, q12                                       @ q14 = (Y - y_offset)
+    vsub.s16            q15, q12                                       @ q15 = (Y - y_offset)
+    vqdmulh.s16         q14, q13                                       @ q14 = (Y - y_offset) * y_coeff
+    vqdmulh.s16         q15, q13                                       @ q15 = (Y - y_offset) * y_coeff
 
 .ifc \ofmt,argb
     compute_rgba        d7, d8, d9, d6, d11, d12, d13, d10
 .ifc \ofmt,bgra
     compute_rgba        d8, d7, d6, d9, d12, d11, d10, d13
 .endif
+
+    vzip.8              d6, d10                                        @ d6 = R1R2R3R4R5R6R7R8 d10 = R9R10R11R12R13R14R15R16
+    vzip.8              d7, d11                                        @ d7 = G1G2G3G4G5G6G7G8 d11 = G9G10G11G12G13G14G15G16
+    vzip.8              d8, d12                                        @ d8 = B1B2B3B4B5B6B7B8 d12 = B9B10B11B12B13B14B15B16
+    vzip.8              d9, d13                                        @ d9 = A1A2A3A4A5A6A7A8 d13 = A9A10A11A12A13A14A15A16
     vst4.8              {q3, q4}, [\dst,:128]!
     vst4.8              {q5, q6}, [\dst,:128]!
-
 .endm
 
 .macro process_1l_internal dst src ofmt
-    vld1.8              {q7}, [\src]!
-    compute             \dst, d14, d15, \ofmt
+    vld2.8              {d14, d15}, [\src]!                            @ q7 = Y (interleaved)
+    compute             \dst, \ofmt
 .endm
 
 .macro process_1l ofmt
-    compute_premult     d28, d29, d30, d31
+    compute_premult
     process_1l_internal r2, r4, \ofmt
 .endm
 
 .macro process_2l ofmt
-    compute_premult     d28, d29, d30, d31
+    compute_premult
     process_1l_internal r2, r4, \ofmt
     process_1l_internal r11,r12,\ofmt
 .endm
     pld [r12, #64*3]
 
     vld2.8              {d2, d3}, [r6]!                                @ q1: interleaved chroma line
-    vsubl.u8            q14, d2, d10                                   @ q14 = U - 128
-    vsubl.u8            q15, d3, d10                                   @ q15 = V - 128
+    vshll.u8            q14, d2, #3                                    @ q14 = U * (1 << 3)
+    vshll.u8            q15, d3, #3                                    @ q15 = V * (1 << 3)
 .endm
 
 .macro load_chroma_nv21
     pld [r12, #64*3]
 
     vld2.8              {d2, d3}, [r6]!                                @ q1: interleaved chroma line
-    vsubl.u8            q14, d3, d10                                   @ q14 = U - 128
-    vsubl.u8            q15, d2, d10                                   @ q15 = V - 128
+    vshll.u8            q14, d3, #3                                    @ q14 = U * (1 << 3)
+    vshll.u8            q15, d2, #3                                    @ q15 = V * (1 << 3)
 .endm
 
 .macro load_chroma_yuv420p
 
     vld1.8              d2, [r6]!                                      @ d2: chroma red line
     vld1.8              d3, [r10]!                                     @ d3: chroma blue line
-    vsubl.u8            q14, d2, d10                                   @ q14 = U - 128
-    vsubl.u8            q15, d3, d10                                   @ q15 = V - 128
+    vshll.u8            q14, d2, #3                                    @ q14 = U * (1 << 3)
+    vshll.u8            q15, d3, #3                                    @ q15 = V * (1 << 3)
 .endm
 
 .macro load_chroma_yuv422p
 
     vld1.8              d2, [r6]!                                      @ d2: chroma red line
     vld1.8              d3, [r10]!                                     @ d3: chroma blue line
-    vsubl.u8            q14, d2, d10                                   @ q14 = U - 128
-    vsubl.u8            q15, d3, d10                                   @ q15 = V - 128
+    vshll.u8            q14, d2, #3                                    @ q14 = U * (1 << 3)
+    vshll.u8            q15, d3, #3                                    @ q15 = V * (1 << 3)
 .endm
 
 .macro increment_and_test_nv12
 .macro declare_func ifmt ofmt
 function ff_\ifmt\()_to_\ofmt\()_neon, export=1
     load_args_\ifmt
+    vmov.u16            q11, #1024                                     @ q11 = 128 * (1 << 3)
+    vdup.16             q12, r9                                        @ q12 = y_offset
+    vmov                d26, d0                                        @ q13 = y_coeff
+    vmov                d27, d0                                        @ q13 = y_coeff
 1:
     mov                 r8, r0                                         @ r8 = width
 2: