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softpipe: whitespace, comment clean-ups in sp_tex_sample.c

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Reviewed-by: Jose Fonseca <jfonseca@vmware.com>
This commit is contained in:
Brian Paul 2012-04-25 10:46:09 -06:00
parent 92d899303a
commit b5e44c2cfb
1 changed files with 32 additions and 26 deletions
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58
src/gallium/drivers/softpipe/sp_tex_sample.c
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@ -1788,9 +1788,9 @@ img_filter_2d_ewa(struct tgsi_sampler *tgsi_sampler,
float weight_buffer[TGSI_QUAD_SIZE];
unsigned buffer_next;
int j;
float den;// = 0.0F;
float den; /* = 0.0F; */
float ddq;
float U;// = u0 - tex_u;
float U; /* = u0 - tex_u; */
int v;
/* Scale ellipse formula to directly index the Filter Lookup Table.
@ -1806,8 +1806,8 @@ img_filter_2d_ewa(struct tgsi_sampler *tgsi_sampler,
* also the same. Note that texel/image access can only be performed using
* a quad, i.e. it is not possible to get the pixel value for a single
* tex coord. In order to have a better performance, the access is buffered
* using the s_buffer/t_buffer and weight_buffer. Only when the buffer is full,
* then the pixel values are read from the image.
* using the s_buffer/t_buffer and weight_buffer. Only when the buffer is
* full, then the pixel values are read from the image.
*/
ddq = 2 * A;
@ -1835,7 +1835,9 @@ img_filter_2d_ewa(struct tgsi_sampler *tgsi_sampler,
int u;
for (u = u0; u <= u1; ++u) {
/* Note that the ellipse has been pre-scaled so F = WEIGHT_LUT_SIZE - 1 */
/* Note that the ellipse has been pre-scaled so F =
* WEIGHT_LUT_SIZE - 1
*/
if (q < WEIGHT_LUT_SIZE) {
/* as a LUT is used, q must never be negative;
* should not happen, though
@ -1874,10 +1876,11 @@ img_filter_2d_ewa(struct tgsi_sampler *tgsi_sampler,
}
}
/* if the tex coord buffer contains unread values, we will read them now.
* Note that in most cases we have to read more pixel values than required,
* however, as the img_filter_2d_nearest function(s) does not have a count
* parameter, we need to read the whole quad and ignore the unused values
/* if the tex coord buffer contains unread values, we will read
* them now. Note that in most cases we have to read more pixel
* values than required, however, as the img_filter_2d_nearest
* function(s) does not have a count parameter, we need to read
* the whole quad and ignore the unused values
*/
if (buffer_next > 0) {
unsigned jj;
@ -1896,11 +1899,9 @@ img_filter_2d_ewa(struct tgsi_sampler *tgsi_sampler,
}
if (den <= 0.0F) {
/* Reaching this place would mean
* that no pixels intersected the ellipse.
* This should never happen because
* the filter we use always
* intersects at least one pixel.
/* Reaching this place would mean that no pixels intersected
* the ellipse. This should never happen because the filter
* we use always intersects at least one pixel.
*/
/*rgba[0]=0;
@ -1908,7 +1909,8 @@ img_filter_2d_ewa(struct tgsi_sampler *tgsi_sampler,
rgba[2]=0;
rgba[3]=0;*/
/* not enough pixels in resampling, resort to direct interpolation */
samp->min_img_filter(tgsi_sampler, s, t, p, NULL, tgsi_sampler_lod_bias, rgba_temp);
samp->min_img_filter(tgsi_sampler, s, t, p, NULL,
tgsi_sampler_lod_bias, rgba_temp);
den = 1;
num[0] = rgba_temp[0][j];
num[1] = rgba_temp[1][j];
@ -2021,7 +2023,6 @@ mip_filter_linear_aniso(struct tgsi_sampler *tgsi_sampler,
}
/**
* Specialized version of mip_filter_linear with hard-wired calls to
* 2d lambda calculation and 2d_linear_repeat_POT img filters.
@ -2091,7 +2092,6 @@ mip_filter_linear_2d_linear_repeat_POT(
}
/**
* Do shadow/depth comparisons.
*/
@ -2288,9 +2288,11 @@ sample_cube(struct tgsi_sampler *tgsi_sampler,
samp->compare(tgsi_sampler, ssss, tttt, NULL, c0, control, rgba);
}
static void do_swizzling(const struct sp_sampler_variant *samp,
float in[TGSI_NUM_CHANNELS][TGSI_QUAD_SIZE],
float out[TGSI_NUM_CHANNELS][TGSI_QUAD_SIZE])
static void
do_swizzling(const struct sp_sampler_variant *samp,
float in[TGSI_NUM_CHANNELS][TGSI_QUAD_SIZE],
float out[TGSI_NUM_CHANNELS][TGSI_QUAD_SIZE])
{
int j;
const unsigned swizzle_r = samp->key.bits.swizzle_r;
@ -2359,6 +2361,7 @@ static void do_swizzling(const struct sp_sampler_variant *samp,
}
}
static void
sample_swizzle(struct tgsi_sampler *tgsi_sampler,
const float s[TGSI_QUAD_SIZE],
@ -2591,6 +2594,7 @@ sp_sampler_variant_destroy( struct sp_sampler_variant *samp )
FREE(samp);
}
static void
sample_get_dims(struct tgsi_sampler *tgsi_sampler, int level,
int dims[4])
@ -2639,12 +2643,12 @@ sample_get_dims(struct tgsi_sampler *tgsi_sampler, int level,
*/
static void
sample_get_texels(struct tgsi_sampler *tgsi_sampler,
const int v_i[TGSI_QUAD_SIZE],
const int v_j[TGSI_QUAD_SIZE],
const int v_k[TGSI_QUAD_SIZE],
const int lod[TGSI_QUAD_SIZE],
const int8_t offset[3],
float rgba[TGSI_NUM_CHANNELS][TGSI_QUAD_SIZE])
const int v_i[TGSI_QUAD_SIZE],
const int v_j[TGSI_QUAD_SIZE],
const int v_k[TGSI_QUAD_SIZE],
const int lod[TGSI_QUAD_SIZE],
const int8_t offset[3],
float rgba[TGSI_NUM_CHANNELS][TGSI_QUAD_SIZE])
{
const struct sp_sampler_variant *samp = sp_sampler_variant(tgsi_sampler);
union tex_tile_address addr;
@ -2732,6 +2736,8 @@ sample_get_texels(struct tgsi_sampler *tgsi_sampler,
do_swizzling(samp, rgba_temp, rgba);
}
}
/**
* Create a sampler variant for a given set of non-orthogonal state.
*/