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SIMD-accelerated int upsample routine for MIPS DSPr2

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This commit is contained in:
DRC
2014-05-18 20:04:47 +00:00
parent ecfbabdbf3
commit 6263c1fc1b
9 changed files with 169 additions and 1 deletions
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49
simd/jsimd_mips.c
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@@ -85,6 +85,25 @@ static const int mips_idct_ifast_coefs[4] = {
0xAC60AC60 // FIX(-2.613125930 / 4) = -21407 = 0xAC61
};
/* The following struct is borrowed from jdsample.c */
typedef void (*upsample1_ptr) (j_decompress_ptr cinfo,
jpeg_component_info * compptr,
JSAMPARRAY input_data,
JSAMPARRAY * output_data_ptr);
typedef struct {
struct jpeg_upsampler pub;
JSAMPARRAY color_buf[MAX_COMPONENTS];
upsample1_ptr methods[MAX_COMPONENTS];
int next_row_out;
JDIMENSION rows_to_go;
int rowgroup_height[MAX_COMPONENTS];
UINT8 h_expand[MAX_COMPONENTS];
UINT8 v_expand[MAX_COMPONENTS];
} my_upsampler;
typedef my_upsampler * my_upsample_ptr;
GLOBAL(int)
jsimd_can_rgb_ycc (void)
{
@@ -415,6 +434,23 @@ jsimd_can_h2v1_upsample (void)
return 0;
}
GLOBAL(int)
jsimd_can_int_upsample (void)
{
init_simd();
/* The code is optimised for these values only */
if (BITS_IN_JSAMPLE != 8)
return 0;
if (sizeof(JDIMENSION) != 4)
return 0;
if (simd_support & JSIMD_MIPS_DSPR2)
return 1;
return 0;
}
GLOBAL(void)
jsimd_h2v2_upsample (j_decompress_ptr cinfo,
jpeg_component_info * compptr,
@@ -439,6 +475,19 @@ jsimd_h2v1_upsample (j_decompress_ptr cinfo,
output_data_ptr);
}
GLOBAL(void)
jsimd_int_upsample (j_decompress_ptr cinfo, jpeg_component_info * compptr,
JSAMPARRAY input_data, JSAMPARRAY * output_data_ptr)
{
my_upsample_ptr upsample = (my_upsample_ptr) cinfo->upsample;
jsimd_int_upsample_mips_dspr2(upsample->h_expand[compptr->component_index],
upsample->v_expand[compptr->component_index],
input_data, output_data_ptr,
cinfo->output_width,
cinfo->max_v_samp_factor);
}
GLOBAL(int)
jsimd_can_h2v2_fancy_upsample (void)
{