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ppc: pixblockdsp: Use the abriged vector types

This commit is contained in:
Luca Barbato 2015-05-12 00:45:37 +02:00
parent 72cebae0d9
commit 7014b65995
1 changed files with 20 additions and 23 deletions
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43
libavcodec/ppc/pixblockdsp.c
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@ -39,24 +39,22 @@ static void get_pixels_altivec(int16_t *restrict block, const uint8_t *pixels,
int line_size) int line_size)
{ {
int i; int i;
vector unsigned char perm = vec_lvsl(0, pixels); vec_u8 perm = vec_lvsl(0, pixels);
const vector unsigned char zero = const vec_u8 zero = (const vec_u8)vec_splat_u8(0);
(const vector unsigned char) vec_splat_u8(0);
for (i = 0; i < 8; i++) { for (i = 0; i < 8; i++) {
/* Read potentially unaligned pixels. /* Read potentially unaligned pixels.
* We're reading 16 pixels, and actually only want 8, * We're reading 16 pixels, and actually only want 8,
* but we simply ignore the extras. */ * but we simply ignore the extras. */
vector unsigned char pixl = vec_ld(0, pixels); vec_u8 pixl = vec_ld(0, pixels);
vector unsigned char pixr = vec_ld(7, pixels); vec_u8 pixr = vec_ld(7, pixels);
vector unsigned char bytes = vec_perm(pixl, pixr, perm); vec_u8 bytes = vec_perm(pixl, pixr, perm);
// Convert the bytes into shorts. // Convert the bytes into shorts.
vector signed short shorts = (vector signed short) vec_mergeh(zero, vec_s16 shorts = (vec_s16)vec_mergeh(zero, bytes);
bytes);
// Save the data to the block, we assume the block is 16-byte aligned. // Save the data to the block, we assume the block is 16-byte aligned.
vec_st(shorts, i * 16, (vector signed short *) block); vec_st(shorts, i * 16, (vec_s16 *)block);
pixels += line_size; pixels += line_size;
} }
@ -66,22 +64,21 @@ static void diff_pixels_altivec(int16_t *restrict block, const uint8_t *s1,
const uint8_t *s2, int stride) const uint8_t *s2, int stride)
{ {
int i; int i;
vector unsigned char perm1 = vec_lvsl(0, s1); vec_u8 perm1 = vec_lvsl(0, s1);
vector unsigned char perm2 = vec_lvsl(0, s2); vec_u8 perm2 = vec_lvsl(0, s2);
const vector unsigned char zero = const vec_u8 zero = (const vec_u8)vec_splat_u8(0);
(const vector unsigned char) vec_splat_u8(0); vec_s16 shorts1, shorts2;
vector signed short shorts1, shorts2;
for (i = 0; i < 4; i++) { for (i = 0; i < 4; i++) {
/* Read potentially unaligned pixels. /* Read potentially unaligned pixels.
* We're reading 16 pixels, and actually only want 8, * We're reading 16 pixels, and actually only want 8,
* but we simply ignore the extras. */ * but we simply ignore the extras. */
vector unsigned char pixl = vec_ld(0, s1); vec_u8 pixl = vec_ld(0, s1);
vector unsigned char pixr = vec_ld(15, s1); vec_u8 pixr = vec_ld(15, s1);
vector unsigned char bytes = vec_perm(pixl, pixr, perm1); vec_u8 bytes = vec_perm(pixl, pixr, perm1);
// Convert the bytes into shorts. // Convert the bytes into shorts.
shorts1 = (vector signed short) vec_mergeh(zero, bytes); shorts1 = (vec_s16)vec_mergeh(zero, bytes);
// Do the same for the second block of pixels. // Do the same for the second block of pixels.
pixl = vec_ld(0, s2); pixl = vec_ld(0, s2);
@ -89,13 +86,13 @@ static void diff_pixels_altivec(int16_t *restrict block, const uint8_t *s1,
bytes = vec_perm(pixl, pixr, perm2); bytes = vec_perm(pixl, pixr, perm2);
// Convert the bytes into shorts. // Convert the bytes into shorts.
shorts2 = (vector signed short) vec_mergeh(zero, bytes); shorts2 = (vec_s16)vec_mergeh(zero, bytes);
// Do the subtraction. // Do the subtraction.
shorts1 = vec_sub(shorts1, shorts2); shorts1 = vec_sub(shorts1, shorts2);
// Save the data to the block, we assume the block is 16-byte aligned. // Save the data to the block, we assume the block is 16-byte aligned.
vec_st(shorts1, 0, (vector signed short *) block); vec_st(shorts1, 0, (vec_s16 *)block);
s1 += stride; s1 += stride;
s2 += stride; s2 += stride;
@ -112,7 +109,7 @@ static void diff_pixels_altivec(int16_t *restrict block, const uint8_t *s1,
bytes = vec_perm(pixl, pixr, perm1); bytes = vec_perm(pixl, pixr, perm1);
// Convert the bytes into shorts. // Convert the bytes into shorts.
shorts1 = (vector signed short) vec_mergeh(zero, bytes); shorts1 = (vec_s16)vec_mergeh(zero, bytes);
// Do the same for the second block of pixels. // Do the same for the second block of pixels.
pixl = vec_ld(0, s2); pixl = vec_ld(0, s2);
@ -120,13 +117,13 @@ static void diff_pixels_altivec(int16_t *restrict block, const uint8_t *s1,
bytes = vec_perm(pixl, pixr, perm2); bytes = vec_perm(pixl, pixr, perm2);
// Convert the bytes into shorts. // Convert the bytes into shorts.
shorts2 = (vector signed short) vec_mergeh(zero, bytes); shorts2 = (vec_s16)vec_mergeh(zero, bytes);
// Do the subtraction. // Do the subtraction.
shorts1 = vec_sub(shorts1, shorts2); shorts1 = vec_sub(shorts1, shorts2);
// Save the data to the block, we assume the block is 16-byte aligned. // Save the data to the block, we assume the block is 16-byte aligned.
vec_st(shorts1, 0, (vector signed short *) block); vec_st(shorts1, 0, (vec_s16 *)block);
s1 += stride; s1 += stride;
s2 += stride; s2 += stride;