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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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188 lines
5.6 KiB
ArmAsm
188 lines
5.6 KiB
ArmAsm
.globl mmx_80w
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.data
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.align 4
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.type mmx_80w,@object
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.size mmx_80w,8
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mmx_80w:
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.long 8388736
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.long 8388736
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.globl mmx_10w
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.align 4
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.type mmx_10w,@object
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.size mmx_10w,8
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mmx_10w:
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.long 269488144
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.long 269488144
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.globl mmx_00ffw
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.align 4
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.type mmx_00ffw,@object
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.size mmx_00ffw,8
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mmx_00ffw:
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.long 16711935
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.long 16711935
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.globl mmx_Y_coeff
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.align 4
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.type mmx_Y_coeff,@object
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.size mmx_Y_coeff,8
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mmx_Y_coeff:
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.long 624895295
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.long 624895295
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.globl mmx_U_green
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.align 4
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.type mmx_U_green,@object
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.size mmx_U_green,8
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mmx_U_green:
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.long -209849475
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.long -209849475
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.globl mmx_U_blue
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.align 4
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.type mmx_U_blue,@object
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.size mmx_U_blue,8
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mmx_U_blue:
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.long 1083392147
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.long 1083392147
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.globl mmx_V_red
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.align 4
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.type mmx_V_red,@object
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.size mmx_V_red,8
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mmx_V_red:
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.long 856830738
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.long 856830738
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.globl mmx_V_green
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.align 4
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.type mmx_V_green,@object
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.size mmx_V_green,8
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mmx_V_green:
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.long -436410884
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.long -436410884
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.globl mmx_redmask
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.align 4
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.type mmx_redmask,@object
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.size mmx_redmask,8
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mmx_redmask:
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.long -117901064
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.long -117901064
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.globl mmx_grnmask
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.align 4
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.type mmx_grnmask,@object
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.size mmx_grnmask,8
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mmx_grnmask:
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.long -50529028
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.long -50529028
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.text
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.align 4
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.globl gst_colorspace_yuv_to_bgr16_mmx
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.type gst_colorspace_yuv_to_bgr16_mmx,@function
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gst_colorspace_yuv_to_bgr16_mmx:
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subl $8,%esp
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pushl %ebp
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pushl %edi
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pushl %esi
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movl 28(%esp),%edi
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movl 32(%esp),%ecx
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movl 36(%esp),%edx
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movl $1,%ebp
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movl 48(%esp),%esi
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sarl $1,%esi
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movl %esi,16(%esp)
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pxor %mm4, %mm4 # zero mm4
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movl %esi,12(%esp)
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sarl $2,12(%esp)
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movl 40(%esp),%esi
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.p2align 4,,7
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.L68:
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movd (%ecx), %mm0 # Load 4 Cb 00 00 00 00 00 u3 u2 u1 u0
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movd (%edx), %mm1 # Load 4 Cr 00 00 00 00 00 v2 v1 v0
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movq (%edi), %mm6 # Load 8 Y Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0
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movl 12(%esp),%eax
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.p2align 4,,7
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.L74:
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punpcklbw %mm4, %mm0 # scatter 4 Cb 00 u3 00 u2 00 u1 00 u0
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punpcklbw %mm4, %mm1 # scatter 4 Cr 00 v3 00 v2 00 v1 00 v0
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psubsw mmx_80w, %mm0 # Cb -= 128
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psubsw mmx_80w, %mm1 # Cr -= 128
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psllw $3, %mm0 # Promote precision
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psllw $3, %mm1 # Promote precision
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movq %mm0, %mm2 # Copy 4 Cb 00 u3 00 u2 00 u1 00 u0
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movq %mm1, %mm3 # Copy 4 Cr 00 v3 00 v2 00 v1 00 v0
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pmulhw mmx_U_green, %mm2 # Mul Cb with green coeff -> Cb green
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pmulhw mmx_V_green, %mm3 # Mul Cr with green coeff -> Cr green
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pmulhw mmx_U_blue, %mm0 # Mul Cb -> Cblue 00 b3 00 b2 00 b1 00 b0
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pmulhw mmx_V_red, %mm1 # Mul Cr -> Cred 00 r3 00 r2 00 r1 00 r0
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paddsw %mm3, %mm2 # Cb green + Cr green -> Cgreen
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psubusb mmx_10w, %mm6 # Y -= 16
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movq %mm6, %mm7 # Copy 8 Y Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0
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pand mmx_00ffw, %mm6 # get Y even 00 Y6 00 Y4 00 Y2 00 Y0
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psrlw $8, %mm7 # get Y odd 00 Y7 00 Y5 00 Y3 00 Y1
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psllw $3, %mm6 # Promote precision
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psllw $3, %mm7 # Promote precision
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pmulhw mmx_Y_coeff, %mm6 # Mul 4 Y even 00 y6 00 y4 00 y2 00 y0
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pmulhw mmx_Y_coeff, %mm7 # Mul 4 Y odd 00 y7 00 y5 00 y3 00 y1
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movq %mm0, %mm3 # Copy Cblue
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movq %mm1, %mm4 # Copy Cred
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movq %mm2, %mm5 # Copy Cgreen
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paddsw %mm6, %mm0 # Y even + Cblue 00 B6 00 B4 00 B2 00 B0
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paddsw %mm7, %mm3 # Y odd + Cblue 00 B7 00 B5 00 B3 00 B1
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paddsw %mm6, %mm1 # Y even + Cred 00 R6 00 R4 00 R2 00 R0
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paddsw %mm7, %mm4 # Y odd + Cred 00 R7 00 R5 00 R3 00 R1
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paddsw %mm6, %mm2 # Y even + Cgreen 00 G6 00 G4 00 G2 00 G0
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paddsw %mm7, %mm5 # Y odd + Cgreen 00 G7 00 G5 00 G3 00 G1
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packuswb %mm0, %mm0 # B6 B4 B2 B0 | B6 B4 B2 B0
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packuswb %mm1, %mm1 # R6 R4 R2 R0 | R6 R4 R2 R0
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packuswb %mm2, %mm2 # G6 G4 G2 G0 | G6 G4 G2 G0
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packuswb %mm3, %mm3 # B7 B5 B3 B1 | B7 B5 B3 B1
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packuswb %mm4, %mm4 # R7 R5 R3 R1 | R7 R5 R3 R1
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packuswb %mm5, %mm5 # G7 G5 G3 G1 | G7 G5 G3 G1
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punpcklbw %mm3, %mm0 # B7 B6 B5 B4 B3 B2 B1 B0
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punpcklbw %mm4, %mm1 # R7 R6 R5 R4 R3 R2 R1 R0
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punpcklbw %mm5, %mm2 # G7 G6 G5 G4 G3 G2 G1 G0
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pand mmx_redmask, %mm0 # b7b6b5b4 b3_0_0_0 b7b6b5b4 b3_0_0_0
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pand mmx_grnmask, %mm2 # g7g6g5g4 g3g2_0_0 g7g6g5g4 g3g2_0_0
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pand mmx_redmask, %mm1 # r7r6r5r4 r3_0_0_0 r7r6r5r4 r3_0_0_0
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psrlw $3,%mm0 #0_0_0_b7 b6b5b4b3 0_0_0_b7 b6b5b4b3
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pxor %mm4, %mm4 # zero mm4
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movq %mm0, %mm5 # Copy B7-B0
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movq %mm2, %mm7 # Copy G7-G0
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punpcklbw %mm4, %mm2 # 0_0_0_0 0_0_0_0 g7g6g5g4 g3g2_0_0
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punpcklbw %mm1, %mm0 # r7r6r5r4 r3_0_0_0 0_0_0_b7 b6b5b4b3
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psllw $3,%mm2 # 0_0_0_0 0_g7g6g5 g4g3g2_0 0_0_0_0
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por %mm2, %mm0 # r7r6r5r4 r3g7g6g5 g4g3g2b7 b6b5b4b3
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movq 8(%edi), %mm6 # Load 8 Y Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0
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movq %mm0, (%esi) # store pixel 0-3
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punpckhbw %mm4, %mm7 # 0_0_0_0 0_0_0_0 g7g6g5g4 g3g2_0_0
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punpckhbw %mm1, %mm5 # r7r6r5r4 r3_0_0_0 0_0_0_b7 b6b5b4b3
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psllw $3,%mm7 # 0_0_0_0 0_g7g6g5 g4g3g2_0 0_0_0_0
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movd 4(%ecx), %mm0 # Load 4 Cb 00 00 00 00 u3 u2 u1 u0
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por %mm7, %mm5 # r7r6r5r4 r3g7g6g5 g4g3g2b7 b6b5b4b3
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movd 4(%edx), %mm1 # Load 4 Cr 00 00 00 00 v3 v2 v1 v0
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movq %mm5, 8(%esi) # store pixel 4-7
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addl $8,%edi
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addl $4,%ecx
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addl $4,%edx
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addl $16,%esi
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decl %eax
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jnz .L74
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.L72:
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xorl $1,%ebp
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jne .L76
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subl 16(%esp),%ecx
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subl 16(%esp),%edx
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.L76:
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subl $1,44(%esp)
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jnz .L68
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emms
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popl %esi
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popl %edi
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popl %ebp
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addl $8,%esp
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ret
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