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Diffstat (limited to 'backends/platform/wince/ARMscaler.s')
| -rw-r--r-- | backends/platform/wince/ARMscaler.s | 184 |
1 files changed, 0 insertions, 184 deletions
diff --git a/backends/platform/wince/ARMscaler.s b/backends/platform/wince/ARMscaler.s deleted file mode 100644 index bcd3917665..0000000000 --- a/backends/platform/wince/ARMscaler.s +++ /dev/null @@ -1,184 +0,0 @@ -@ ScummVM Scumm Interpreter -@ Copyright (C) 2007 The ScummVM project -@ -@ 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. -@ -@ $URL$ -@ $Id$ -@ -@ @author Robin Watts (robin@wss.co.uk) - - .text - - .global PocketPCHalfARM - - @ ARM implementation of PocketPCHalf scaler. - @ Scales a width x height block of 16bpp pixels from srcPtr to - @ dstPtr. srcPitch and dstPitch identify how to reach subsequent - @ lines. redblueMask and round allow for one routine to do both - @ 565 and 555 formats. -PocketPCHalfARM: - @ r0 = srcPtr - @ r1 = srcPitch - @ r2 = dstPtr - @ r3 = dstPitch - MOV r12,r13 - STMFD r13!,{r4-r11,r14} - LDMIA r12,{r4-r7} - @ r4 = width - @ r5 = height - @ r6 = redblueMask - @ r7 = round - - SUB r3,r3,r4 @ dstPitch -= width - SUBS r5,r5,#2 @ while ((height-=2) >= 0) - BLT end -height_loop: - - SUBS r11, r4, #8 @ r11= width_minus_8 - BLT thin - -width_loop: - @ unroll loop 4 times here - LDRH r8,[r0],r1 @ r8 = A = srcPtr[0] - LDRH r9,[r0],#2 @ r9 = C = srcPtr[dstPitch] - LDRH r12,[r0],-r1 @ r12= D = srcPtr[dstPitch+2] - LDRH r14,[r0],#2 @ r14= B = srcPtr[2] - - ORR r8, r8, r8, LSL #16 @ r8 = b | g | r | b | g | r - ORR r9, r9, r9, LSL #16 @ r9 = b | g | r | b | g | r - ORR r12,r12,r12,LSL #16 @ r12= b | g | r | b | g | r - ORR r14,r14,r14,LSL #16 @ r14= b | g | r | b | g | r - AND r8, r8, r6 @ r8 = 0 | g | 0 | b | 0 | r - AND r9, r9, r6 @ r9 = 0 | g | 0 | b | 0 | r - AND r12,r12,r6 @ r12= 0 | g | 0 | b | 0 | r - AND r14,r14,r6 @ r14= 0 | g | 0 | b | 0 | r - ADD r8, r8, r9 - ADD r8, r8, r12 - ADD r8, r8, r14 - ADD r8, r8, r7 @ r8 = summed pixels + rounding - AND r8, r6, r8, LSR #2 @ r8 = 0 | g | 0 | b | 0 | r - ORR r10,r8, r8, LSR #16 @ r10= 0 | g | 0 | b | g | r - - LDRH r8,[r0],r1 @ r8 = A = srcPtr[0] - LDRH r9,[r0],#2 @ r9 = C = srcPtr[dstPitch] - LDRH r12,[r0],-r1 @ r12= D = srcPtr[dstPitch+2] - LDRH r14,[r0],#2 @ r14= B = srcPtr[2] - - STRH r10,[r2],#2 @ *dstPtr++ - - ORR r8, r8, r8, LSL #16 @ r8 = b | g | r | b | g | r - ORR r9, r9, r9, LSL #16 @ r9 = b | g | r | b | g | r - ORR r12,r12,r12,LSL #16 @ r12= b | g | r | b | g | r - ORR r14,r14,r14,LSL #16 @ r14= b | g | r | b | g | r - AND r8, r8, r6 @ r8 = 0 | g | 0 | b | 0 | r - AND r9, r9, r6 @ r9 = 0 | g | 0 | b | 0 | r - AND r12,r12,r6 @ r12= 0 | g | 0 | b | 0 | r - AND r14,r14,r6 @ r14= 0 | g | 0 | b | 0 | r - ADD r8, r8, r9 - ADD r8, r8, r12 - ADD r8, r8, r14 - ADD r8, r8, r7 @ r8 = summed pixels + rounding - AND r8, r6, r8, LSR #2 @ r8 = 0 | g | 0 | b | 0 | r - ORR r10,r8, r8, LSR #16 @ r10= 0 | g | 0 | b | g | r - - LDRH r8,[r0],r1 @ r8 = A = srcPtr[0] - LDRH r9,[r0],#2 @ r9 = C = srcPtr[dstPitch] - LDRH r12,[r0],-r1 @ r12= D = srcPtr[dstPitch+2] - LDRH r14,[r0],#2 @ r14= B = srcPtr[2] - - STRH r10,[r2],#2 @ *dstPtr++ - - ORR r8, r8, r8, LSL #16 @ r8 = b | g | r | b | g | r - ORR r9, r9, r9, LSL #16 @ r9 = b | g | r | b | g | r - ORR r12,r12,r12,LSL #16 @ r12= b | g | r | b | g | r - ORR r14,r14,r14,LSL #16 @ r14= b | g | r | b | g | r - AND r8, r8, r6 @ r8 = 0 | g | 0 | b | 0 | r - AND r9, r9, r6 @ r9 = 0 | g | 0 | b | 0 | r - AND r12,r12,r6 @ r12= 0 | g | 0 | b | 0 | r - AND r14,r14,r6 @ r14= 0 | g | 0 | b | 0 | r - ADD r8, r8, r9 - ADD r8, r8, r12 - ADD r8, r8, r14 - ADD r8, r8, r7 @ r8 = summed pixels + rounding - AND r8, r6, r8, LSR #2 @ r8 = 0 | g | 0 | b | 0 | r - ORR r10,r8, r8, LSR #16 @ r10= 0 | g | 0 | b | g | r - - LDRH r8,[r0],r1 @ r8 = A = srcPtr[0] - LDRH r9,[r0],#2 @ r9 = C = srcPtr[dstPitch] - LDRH r12,[r0],-r1 @ r12= D = srcPtr[dstPitch+2] - LDRH r14,[r0],#2 @ r14= B = srcPtr[2] - - STRH r10,[r2],#2 @ *dstPtr++ - - ORR r8, r8, r8, LSL #16 @ r8 = b | g | r | b | g | r - ORR r9, r9, r9, LSL #16 @ r9 = b | g | r | b | g | r - ORR r12,r12,r12,LSL #16 @ r12= b | g | r | b | g | r - ORR r14,r14,r14,LSL #16 @ r14= b | g | r | b | g | r - AND r8, r8, r6 @ r8 = 0 | g | 0 | b | 0 | r - AND r9, r9, r6 @ r9 = 0 | g | 0 | b | 0 | r - AND r12,r12,r6 @ r12= 0 | g | 0 | b | 0 | r - AND r14,r14,r6 @ r14= 0 | g | 0 | b | 0 | r - ADD r8, r8, r9 - ADD r8, r8, r12 - ADD r8, r8, r14 - ADD r8, r8, r7 @ r8 = summed pixels + rounding - AND r8, r6, r8, LSR #2 @ r8 = 0 | g | 0 | b | 0 | r - ORR r10, r8, r8, LSR #16 @ r8 = 0 | g | 0 | b | g | r - - STRH r10,[r2],#2 @ *dstPtr++ - - SUBS r11,r11,#8 @ width_minus_8 -= 8 - BGE width_loop @ (width_minus_8 >= 0) => do 8+ more - -thin: - ADDS r11,r11,#8 @ r11= width - BEQ width_end @ if no more left to do, then bail -thin_lp: - @ single output pixels done in this bit - LDRH r8,[r0],r1 @ r8 = A = srcPtr[0] - LDRH r9,[r0],#2 @ r9 = C = srcPtr[dstPitch] - LDRH r12,[r0],-r1 @ r12= D = srcPtr[dstPitch+2] - LDRH r14,[r0],#2 @ r14= B = srcPtr[2] - - ORR r8, r8, r8, LSL #16 @ r8 = b | g | r | b | g | r - ORR r9, r9, r9, LSL #16 @ r9 = b | g | r | b | g | r - ORR r12,r12,r12,LSL #16 @ r12= b | g | r | b | g | r - ORR r14,r14,r14,LSL #16 @ r14= b | g | r | b | g | r - AND r8, r8, r6 @ r8 = 0 | g | 0 | b | 0 | r - AND r9, r9, r6 @ r9 = 0 | g | 0 | b | 0 | r - AND r12,r12,r6 @ r12= 0 | g | 0 | b | 0 | r - AND r14,r14,r6 @ r14= 0 | g | 0 | b | 0 | r - ADD r8, r8, r9 - ADD r8, r8, r12 - ADD r8, r8, r14 - ADD r8, r8, r7 @ r8 = summed pixels + rounding - AND r8, r6, r8, LSR #2 @ r8 = 0 | g | 0 | b | 0 | r - ORR r8, r8, r8, LSR #16 @ r8 = 0 | g | 0 | b | g | r - - STRH r8,[r2],#2 @ *dstPtr++ - - SUBS r11,r11,#2 - BGT thin_lp -width_end: - ADD r2,r2,r3 @ dstPtr += dstPitch - ADD r0,r0,r1,LSL #1 @ srcPtr += 2*srcPitch - SUB r0,r0,r4,LSL #1 @ srcPtr -= 2*width - - SUBS r5,r5,#2 - BGE height_loop - -end: - LDMFD r13!,{r4-r11,PC} |