From 37b6643df2df7d784a31ca73f7bb90dc109c2401 Mon Sep 17 00:00:00 2001
From: Hans-Christoph Steiner <eighthave@users.sourceforge.net>
Date: Thu, 15 Dec 2005 07:26:47 +0000
Subject: removing PDP source (except debian files) before import of PDP 0.12.4

svn path=/trunk/externals/pdp/; revision=4217
---
 system/mmx/pixel_gain.s | 83 -------------------------------------------------
 1 file changed, 83 deletions(-)
 delete mode 100644 system/mmx/pixel_gain.s

(limited to 'system/mmx/pixel_gain.s')

diff --git a/system/mmx/pixel_gain.s b/system/mmx/pixel_gain.s
deleted file mode 100644
index 5cd5057..0000000
--- a/system/mmx/pixel_gain.s
+++ /dev/null
@@ -1,83 +0,0 @@
-#    Pure Data Packet mmx routine.
-#    Copyright (c) by Tom Schouten <pdp@zzz.kotnet.org>
-# 
-#    This program 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.
-# 
-#    This program 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., 675 Mass Ave, Cambridge, MA 02139, USA.
-#
-.globl pixel_gain
-.type  pixel_gain,@function
-
-# mmx rgba pixel gain
-# void asmtest(char *pixelarray, int32 nbpixels, int *rgba_gain)
-# gains are 7.9 fixed point for rgba
-
-pixel_gain:
-	pushl %ebp
-	movl %esp, %ebp
-	push %esi
-	push %edi
-
-	movl 8(%ebp),  %esi	# pixel array offset
-	movl 12(%ebp), %ecx	# nb of elements
-	movl 16(%ebp), %edi	# int16[4] array of gains
-
-	prefetch (%esi)
-
-	emms
-	sarl $2, %ecx		# process 4 pixels per loop iteration
-	jz .exit
-	movq (%edi), %mm7	# read gain array from memory
-	jmp .loop_gain
-
-	.align 16
-	.loop_gain:	
-
-	prefetch 128(%esi)	
-	movq (%esi), %mm5	# load pixel 1-2  from memory
-	movq 8(%esi), %mm6	# load pixel 3-4  from memory
-	pxor %mm0, %mm0		# zero mm0 - mm3
-	pxor %mm1, %mm1
-	pxor %mm2, %mm2
-	pxor %mm3, %mm3
-	punpcklbw %mm5, %mm0	# unpack 1st pixel into 8.8 bit ints
-	punpckhbw %mm5, %mm1	# unpack 2nd
-	punpcklbw %mm6, %mm2	# unpack 3rd
-	punpckhbw %mm6, %mm3	# unpack 4th
-	psrlw $0x1, %mm0	# shift right to clear sign bit 9.7
-	psrlw $0x1, %mm1
-	psrlw $0x1, %mm2
-	psrlw $0x1, %mm3
-	
-	pmulhw %mm7, %mm0	# multiply 1st pixel 9.7 * 7.9 -> 16.0
-	pmulhw %mm7, %mm1	# multiply 2nd  
-	pmulhw %mm7, %mm2	# multiply 3rd
-	pmulhw %mm7, %mm3	# multiply 4th 
-
-	packuswb %mm1, %mm0	# pack & saturate to 8bit vector
-	movq %mm0, (%esi)	# store result in memory
-	packuswb %mm3, %mm2	# pack & saturate to 8bit vector
-	movq %mm2, 8(%esi)	# store result in memory
-
-	addl $16, %esi		# increment source pointer
-	decl %ecx
-	jnz .loop_gain		# loop
-
-	.exit:
-	emms
-	
-	pop %edi
-	pop %esi
-	leave
-	ret
-	
-- 
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