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MIPS: dspr2: Added optimization for some convert functions

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affected functions:
  VP8LConvertBGRAToRGB_C
  VP8LConvertBGRAToRGBA_C

Change-Id: I5f25795c385688f2432d0710296e589f3793cb2b
This commit is contained in:
Djordje Pesut 2015-02-23 17:44:06 +01:00
parent 8a218b4a96
commit 0f595db60c
1 changed files with 104 additions and 0 deletions
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104
src/dsp/lossless_mips_dsp_r2.c
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@ -585,6 +585,108 @@ static void TransformColorInverse(const VP8LMultipliers* const m,
if (num_pixels & 1) VP8LTransformColorInverse_C(m, data, 1);
}
static void ConvertBGRAToRGB(const uint32_t* src,
int num_pixels, uint8_t* dst) {
int temp0, temp1, temp2, temp3;
uint32_t* const p_loop1_end = (uint32_t*)src + (num_pixels & ~3);
uint32_t* const p_loop2_end = (uint32_t*)src + num_pixels;
__asm__ volatile (
".set push \n\t"
".set noreorder \n\t"
"beq %[src], %[p_loop1_end], 3f \n\t"
" nop \n\t"
"0: \n\t"
"lw %[temp3], 12(%[src]) \n\t"
"lw %[temp2], 8(%[src]) \n\t"
"lw %[temp1], 4(%[src]) \n\t"
"lw %[temp0], 0(%[src]) \n\t"
"ins %[temp3], %[temp2], 24, 8 \n\t"
"sll %[temp2], %[temp2], 8 \n\t"
"rotr %[temp3], %[temp3], 16 \n\t"
"ins %[temp2], %[temp1], 0, 16 \n\t"
"sll %[temp1], %[temp1], 8 \n\t"
"wsbh %[temp3], %[temp3] \n\t"
"balign %[temp0], %[temp1], 1 \n\t"
"wsbh %[temp2], %[temp2] \n\t"
"wsbh %[temp0], %[temp0] \n\t"
"usw %[temp3], 8(%[dst]) \n\t"
"rotr %[temp0], %[temp0], 16 \n\t"
"usw %[temp2], 4(%[dst]) \n\t"
"addiu %[src], %[src], 16 \n\t"
"usw %[temp0], 0(%[dst]) \n\t"
"bne %[src], %[p_loop1_end], 0b \n\t"
" addiu %[dst], %[dst], 12 \n\t"
"3: \n\t"
"beq %[src], %[p_loop2_end], 2f \n\t"
" nop \n\t"
"1: \n\t"
"lw %[temp0], 0(%[src]) \n\t"
"addiu %[src], %[src], 4 \n\t"
"wsbh %[temp1], %[temp0] \n\t"
"addiu %[dst], %[dst], 3 \n\t"
"ush %[temp1], -2(%[dst]) \n\t"
"sra %[temp0], %[temp0], 16 \n\t"
"bne %[src], %[p_loop2_end], 1b \n\t"
" sb %[temp0], -3(%[dst]) \n\t"
"2: \n\t"
".set pop \n\t"
: [temp0]"=&r"(temp0), [temp1]"=&r"(temp1), [temp2]"=&r"(temp2),
[temp3]"=&r"(temp3), [dst]"+&r"(dst), [src]"+&r"(src)
: [p_loop1_end]"r"(p_loop1_end), [p_loop2_end]"r"(p_loop2_end)
: "memory"
);
}
static void ConvertBGRAToRGBA(const uint32_t* src,
int num_pixels, uint8_t* dst) {
int temp0, temp1, temp2, temp3;
uint32_t* const p_loop1_end = (uint32_t*)src + (num_pixels & ~3);
uint32_t* const p_loop2_end = (uint32_t*)src + num_pixels;
__asm__ volatile (
".set push \n\t"
".set noreorder \n\t"
"beq %[src], %[p_loop1_end], 3f \n\t"
" nop \n\t"
"0: \n\t"
"lw %[temp0], 0(%[src]) \n\t"
"lw %[temp1], 4(%[src]) \n\t"
"lw %[temp2], 8(%[src]) \n\t"
"lw %[temp3], 12(%[src]) \n\t"
"wsbh %[temp0], %[temp0] \n\t"
"wsbh %[temp1], %[temp1] \n\t"
"wsbh %[temp2], %[temp2] \n\t"
"wsbh %[temp3], %[temp3] \n\t"
"addiu %[src], %[src], 16 \n\t"
"balign %[temp0], %[temp0], 1 \n\t"
"balign %[temp1], %[temp1], 1 \n\t"
"balign %[temp2], %[temp2], 1 \n\t"
"balign %[temp3], %[temp3], 1 \n\t"
"usw %[temp0], 0(%[dst]) \n\t"
"usw %[temp1], 4(%[dst]) \n\t"
"usw %[temp2], 8(%[dst]) \n\t"
"usw %[temp3], 12(%[dst]) \n\t"
"bne %[src], %[p_loop1_end], 0b \n\t"
" addiu %[dst], %[dst], 16 \n\t"
"3: \n\t"
"beq %[src], %[p_loop2_end], 2f \n\t"
" nop \n\t"
"1: \n\t"
"lw %[temp0], 0(%[src]) \n\t"
"wsbh %[temp0], %[temp0] \n\t"
"addiu %[src], %[src], 4 \n\t"
"balign %[temp0], %[temp0], 1 \n\t"
"usw %[temp0], 0(%[dst]) \n\t"
"bne %[src], %[p_loop2_end], 1b \n\t"
" addiu %[dst], %[dst], 4 \n\t"
"2: \n\t"
".set pop \n\t"
: [temp0]"=&r"(temp0), [temp1]"=&r"(temp1), [temp2]"=&r"(temp2),
[temp3]"=&r"(temp3), [dst]"+&r"(dst), [src]"+&r"(src)
: [p_loop1_end]"r"(p_loop1_end), [p_loop2_end]"r"(p_loop2_end)
: "memory"
);
}
#endif // WEBP_USE_MIPS_DSP_R2
//------------------------------------------------------------------------------
@ -610,6 +712,8 @@ WEBP_TSAN_IGNORE_FUNCTION void VP8LDspInitMIPSdspR2(void) {
VP8LCollectColorRedTransforms = CollectColorRedTransforms;
VP8LAddGreenToBlueAndRed = AddGreenToBlueAndRed;
VP8LTransformColorInverse = TransformColorInverse;
VP8LConvertBGRAToRGB = ConvertBGRAToRGB;
VP8LConvertBGRAToRGBA = ConvertBGRAToRGBA;
#endif // WEBP_USE_MIPS_DSP_R2
}