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add NEON filters
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notaz
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8 changed files with 2650 additions and 0 deletions
306
arm/neon_scale2x.S
Normal file
306
arm/neon_scale2x.S
Normal file
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@ -0,0 +1,306 @@
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@@
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@@ Copyright (C) 2012 Roman Pauer
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@@
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@@ Permission is hereby granted, free of charge, to any person obtaining a copy of
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@@ this software and associated documentation files (the "Software"), to deal in
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@@ the Software without restriction, including without limitation the rights to
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@@ use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
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@@ of the Software, and to permit persons to whom the Software is furnished to do
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@@ so, subject to the following conditions:
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@@
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@@ The above copyright notice and this permission notice shall be included in all
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@@ copies or substantial portions of the Software.
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@@
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@@ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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@@ IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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@@ FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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@@ AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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@@ LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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@@ OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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@@ SOFTWARE.
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@@
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.arm
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.include "neon_scale2x.Sinc"
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.include "neon_normalxx.Sinc"
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.global neon_scale2x_8_8
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.global neon_scale2x_16_16
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.global neon_scale2x_8_16
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.align 4
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neon_scale2x_8_8:
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@ r0 = const uint8_t *src
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@ r1 = uint8_t *dst
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@ r2 = unsigned int width (pixels)
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@ r3 = unsigned int srcstride (bytes)
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@ [sp] = unsigned int dststride (bytes)
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@ [sp+4] = unsigned int height
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@ lr = return address
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ldr ip, [sp] @ ip = dststride
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push {r4-r9}
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ldr r9, [sp, #(7*4)] @ r9 = height
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sub r4, r0, r3 @ r4 = src - srcstride
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add r5, r0, r3 @ r5 = src + srcstride
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add r6, r1, ip @ r6 = dst + dststride
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sub r3, r3, r2 @ r3 = srcstride - width
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sub ip, ip, r2 @ ip = dststride - width
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lsl ip, #1 @ ip = 2 * dststride - 2 * width
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mov r7, r2 @ r7 = width
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sub r9, r9, #2 @ r9 = height - 2
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@ r0 = src
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@ r1 = dst
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@ r2 = width
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@ r3 = srcdiff (srcstride - width)
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@ r4 = src - srcstride
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@ r5 = src + srcstride
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@ r6 = dst + dststride
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@ r7 = counter
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@ r8 = tmpreg
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@ r9 = height
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@ ip = dstdiff (2 * dststride - 2 * width)
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@ first line
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neon_scale2x_8_8_line first, r4, r0, r5, r7, r1, r6, r8, 0, 0
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add r0, r0, r3
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add r4, r4, r3
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add r5, r5, r3
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add r1, r1, ip
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add r6, r6, ip
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@ middle lines
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101:
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mov r7, r2
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neon_scale2x_8_8_line middle, r4, r0, r5, r7, r1, r6, r8, 0, 0
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subS r9, r9, #1
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add r0, r0, r3
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add r4, r4, r3
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add r5, r5, r3
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add r1, r1, ip
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add r6, r6, ip
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bne 101b
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@ last line
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mov r7, r2
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neon_scale2x_8_8_line last, r4, r0, r5, r7, r1, r6, r8, 0, 0
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pop {r4-r9}
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bx lr
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@ end procedure neon_scale2x_8_8
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neon_scale2x_16_16:
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@ r0 = const uint16_t *src
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@ r1 = uint16_t *dst
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@ r2 = unsigned int width (pixels)
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@ r3 = unsigned int srcstride (bytes)
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@ [sp] = unsigned int dststride (bytes)
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@ [sp+4] = unsigned int height
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@ lr = return address
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ldr ip, [sp] @ ip = dststride
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push {r4-r9}
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ldr r9, [sp, #(7*4)] @ r9 = height
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sub r4, r0, r3 @ r4 = src - srcstride
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add r5, r0, r3 @ r5 = src + srcstride
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add r6, r1, ip @ r6 = dst + dststride
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sub r3, r3, r2, lsl #1 @ r3 = srcstride - 2 * width
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sub ip, ip, r2, lsl #1 @ ip = dststride - 2 * width
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lsl ip, #1 @ ip = 2 * dststride - 4 * width
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mov r7, r2 @ r7 = width
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sub r9, r9, #2 @ r9 = height - 2
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@ r0 = src
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@ r1 = dst
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@ r2 = width
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@ r3 = srcdiff (srcstride - 2 * width)
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@ r4 = src - srcstride
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@ r5 = src + srcstride
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@ r6 = dst + dststride
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@ r7 = counter
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@ r8 = tmpreg
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@ r9 = height
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@ ip = dstdiff (2 * dststride - 4 * width)
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@ first line
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neon_scale2x_16_16_line first, r4, r0, r5, r7, r1, r6, r8, 0, 0
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add r0, r0, r3
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add r4, r4, r3
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add r5, r5, r3
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add r1, r1, ip
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add r6, r6, ip
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@ middle lines
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101:
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mov r7, r2
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neon_scale2x_16_16_line middle, r4, r0, r5, r7, r1, r6, r8, 0, 0
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subS r9, r9, #1
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add r0, r0, r3
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add r4, r4, r3
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add r5, r5, r3
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add r1, r1, ip
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add r6, r6, ip
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bne 101b
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@ last line
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mov r7, r2
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neon_scale2x_16_16_line last, r4, r0, r5, r7, r1, r6, r8, 0, 0
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pop {r4-r9}
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bx lr
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@ end procedure neon_scale2x_16_16
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neon_scale2x_8_16:
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@ r0 = const uint8_t *src
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@ r1 = uint8_t *dst
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@ r2 = const uint32_t *palette
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@ r3 = unsigned int width (pixels)
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@ [sp] = unsigned int srcstride (bytes)
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@ [sp+4] = unsigned int dststride (bytes)
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@ [sp+8] = unsigned int height
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@ lr = return address
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@ three temporary lines
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ldr ip, [sp] @ ip = srcstride
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push {r4-r11,lr}
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ldr r4, [sp, #(4*10)] @ r4 = dststride
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ldr r5, [sp, #(4*11)] @ r5 = height
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mov r6, sp @ r6 = sp
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sub ip, ip, r3 @ ip = srcstride - width
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bic sp, sp, #31 @ align sp to 32 bytes
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sub r7, r4, r3, lsl #1 @ r7 = dststride - 2 * width
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sub sp, sp, r3, lsl #1 @ sp -= 2 * width
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sub r5, r5, #2 @ height -= 2
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mov r10, sp @ tmpline3 = sp
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lsl r7, #1 @ r7 = 2 * dststride - 4 * width
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bic sp, sp, #31 @ align sp to 32 bytes
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sub sp, sp, r3, lsl #1 @ sp -= 2 * width
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mov r11, sp @ tmpline2 = sp
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bic sp, sp, #31 @ align sp to 32 bytes
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sub sp, sp, r3, lsl #1 @ sp -= 2 * width
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mov lr, sp @ tmpline1 = sp
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bic sp, sp, #31 @ align sp to 32 bytes
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sub sp, sp, #36
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str r6, [sp] @ oldsp = r6
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str r5, [sp, #4] @ height = r5
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str ip, [sp, #8] @ srcdiff = ip
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str r7, [sp, #12] @ dstdiff = r7
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str r4, [sp, #16] @ dststride = r4
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str lr, [sp, #20] @ tmpline1 = lr
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str r11, [sp, #24] @ tmpline2 = r11
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str r10, [sp, #28] @ tmpline3 = r10
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str r3, [sp, #32] @ width = r3
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@ r0 = src
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@ r1 = dst
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@ r2 = palette
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@ r3 = counter
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@ r4 = dst2
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@ r11 = bufptr1
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@ ip = bufptr2
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@ lr = bufptr3
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@ [sp] = oldsp
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@ [sp, #4] = height
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@ [sp, #8] = srcdiff (srcstride - width)
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@ [sp, #12] = dstdiff (2 * dststride - 4 * width)
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@ [sp, #16] = dststride
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@ [sp, #20] = tmpline1
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@ [sp, #24] = tmpline2
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@ [sp, #28] = tmpline3
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@ [sp, #32] = width
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@ lr = tmpline1
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@ r3 = counter
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@ first line
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neon_normal1x_8_16_line r0, lr, r2, r3, r4, r5, r6, r7, r8, r9, r10, r11, ip
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ldr r7, [sp, #8] @ r7 = srcdiff
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ldr r3, [sp, #32] @ counter = width
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ldr lr, [sp, #24] @ bufptr3 = tmpline2
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add r0, r0, r7 @ src += srcdiff
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@ second line
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neon_normal1x_8_16_line r0, lr, r2, r3, r4, r5, r6, r7, r8, r9, r10, r11, ip
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ldr r9, [sp, #16] @ r9 = dststride
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ldr r3, [sp, #32] @ counter = width
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ldr ip, [sp, #20] @ bufptr2 = tmpline1
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ldr lr, [sp, #24] @ bufptr3 = tmpline2
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add r4, r1, r9 @ dst2 = dst + dststride
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@ first temporary line
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neon_scale2x_16_16_line first, r11, ip, lr, r3, r1, r4, r5, 1, 0
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ldr r7, [sp, #8] @ r7 = srcdiff
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ldr r8, [sp, #12] @ r8 = dstdiff
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ldr r3, [sp, #32] @ counter = width
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ldr lr, [sp, #28] @ bufptr3 = tmpline3
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add r0, r0, r7 @ src += srcdiff
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add r1, r1, r8 @ dst += dstdiff
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100:
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@ line n+1
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neon_normal1x_8_16_line r0, lr, r2, r3, r4, r5, r6, r7, r8, r9, r10, r11, ip
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ldr r9, [sp, #16] @ r9 = dststride
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ldr r11, [sp, #20] @ bufptr1 = tmpline1
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ldr ip, [sp, #24] @ bufptr2 = tmpline2
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ldr lr, [sp, #28] @ bufptr3 = tmpline3
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add r4, r1, r9 @ dst2 = dst + dststride
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ldr r3, [sp, #32] @ counter = width
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str r11, [sp, #28] @ tmpline3 = bufptr1
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str ip, [sp, #20] @ tmpline1 = bufptr2
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str lr, [sp, #24] @ tmpline2 = bufptr3
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@ temporary line n
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neon_scale2x_16_16_line middle, r11, ip, lr, r3, r1, r4, r5, 1, 0
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ldr r6, [sp, #4] @ r6 = height
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ldr r7, [sp, #8] @ r7 = srcdiff
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ldr r8, [sp, #12] @ r8 = dstdiff
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ldr r3, [sp, #32] @ counter = width
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subS r6, r6, #1 @ height--
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ldr lr, [sp, #28] @ bufptr3 = tmpline3
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add r0, r0, r7 @ src += srcdiff
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add r1, r1, r8 @ dst += dstdiff
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str r6, [sp, #4] @ height = r6
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bne 100b
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ldr r9, [sp, #16] @ r9 = dststride
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ldr r11, [sp, #20] @ bufptr1 = tmpline1
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ldr ip, [sp, #24] @ bufptr2 = tmpline2
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add r4, r1, r9 @ dst2 = dst + dststride
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@ last temporary line
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neon_scale2x_16_16_line last, r11, ip, lr, r3, r1, r4, r5, 1, 0
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ldr sp, [sp] @ sp = oldsp
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pop {r4-r11,lr}
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bx lr
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@ end procedure neon_scale2x_8_16
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