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shadow-factory: Untabify

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This commit is contained in:
Jasper St. Pierre 2014-07-31 16:11:36 +02:00
parent 9a6a189e36
commit bee6d2b240
1 changed files with 60 additions and 60 deletions
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120
src/compositor/meta-shadow-factory.c
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@ -549,15 +549,15 @@ blur_xspan (guchar *row,
for (i = x0 - d + offset; i < x1 + offset; i++) for (i = x0 - d + offset; i < x1 + offset; i++)
{ {
if (i >= 0 && i < row_width) if (i >= 0 && i < row_width)
sum += row[i]; sum += row[i];
if (i >= x0 + offset) if (i >= x0 + offset)
{ {
if (i >= d) if (i >= d)
sum -= row[i - d]; sum -= row[i - d];
tmp_buffer[i - offset] = (sum + d / 2) / d; tmp_buffer[i - offset] = (sum + d / 2) / d;
} }
} }
memcpy(row + x0, tmp_buffer + x0, x1 - x0); memcpy(row + x0, tmp_buffer + x0, x1 - x0);
@ -567,9 +567,9 @@ static void
blur_rows (cairo_region_t *convolve_region, blur_rows (cairo_region_t *convolve_region,
int x_offset, int x_offset,
int y_offset, int y_offset,
guchar *buffer, guchar *buffer,
int buffer_width, int buffer_width,
int buffer_height, int buffer_height,
int d) int d)
{ {
int i, j; int i, j;
@ -586,10 +586,10 @@ blur_rows (cairo_region_t *convolve_region,
cairo_region_get_rectangle (convolve_region, i, &rect); cairo_region_get_rectangle (convolve_region, i, &rect);
for (j = y_offset + rect.y; j < y_offset + rect.y + rect.height; j++) for (j = y_offset + rect.y; j < y_offset + rect.y + rect.height; j++)
{ {
guchar *row = buffer + j * buffer_width; guchar *row = buffer + j * buffer_width;
int x0 = x_offset + rect.x; int x0 = x_offset + rect.x;
int x1 = x0 + rect.width; int x1 = x0 + rect.width;
/* We want to produce a symmetric blur that spreads a pixel /* We want to produce a symmetric blur that spreads a pixel
* equally far to the left and right. If d is odd that happens * equally far to the left and right. If d is odd that happens
@ -597,19 +597,19 @@ blur_rows (cairo_region_t *convolve_region,
* on either side and then a centered blur of size d + 1. * on either side and then a centered blur of size d + 1.
* (techique also from the SVG specification) * (techique also from the SVG specification)
*/ */
if (d % 2 == 1) if (d % 2 == 1)
{ {
blur_xspan (row, tmp_buffer, buffer_width, x0, x1, d, 0); blur_xspan (row, tmp_buffer, buffer_width, x0, x1, d, 0);
blur_xspan (row, tmp_buffer, buffer_width, x0, x1, d, 0); blur_xspan (row, tmp_buffer, buffer_width, x0, x1, d, 0);
blur_xspan (row, tmp_buffer, buffer_width, x0, x1, d, 0); blur_xspan (row, tmp_buffer, buffer_width, x0, x1, d, 0);
} }
else else
{ {
blur_xspan (row, tmp_buffer, buffer_width, x0, x1, d, 1); blur_xspan (row, tmp_buffer, buffer_width, x0, x1, d, 1);
blur_xspan (row, tmp_buffer, buffer_width, x0, x1, d, -1); blur_xspan (row, tmp_buffer, buffer_width, x0, x1, d, -1);
blur_xspan (row, tmp_buffer, buffer_width, x0, x1, d + 1, 0); blur_xspan (row, tmp_buffer, buffer_width, x0, x1, d + 1, 0);
} }
} }
} }
g_free (tmp_buffer); g_free (tmp_buffer);
@ -634,7 +634,7 @@ fade_bytes (guchar *bytes,
*/ */
static guchar * static guchar *
flip_buffer (guchar *buffer, flip_buffer (guchar *buffer,
int width, int width,
int height) int height)
{ {
/* Working in blocks increases cache efficiency, compared to reading /* Working in blocks increases cache efficiency, compared to reading
@ -646,33 +646,33 @@ flip_buffer (guchar *buffer,
int i0, j0; int i0, j0;
for (j0 = 0; j0 < height; j0 += BLOCK_SIZE) for (j0 = 0; j0 < height; j0 += BLOCK_SIZE)
for (i0 = 0; i0 <= j0; i0 += BLOCK_SIZE) for (i0 = 0; i0 <= j0; i0 += BLOCK_SIZE)
{ {
int max_j = MIN(j0 + BLOCK_SIZE, height); int max_j = MIN(j0 + BLOCK_SIZE, height);
int max_i = MIN(i0 + BLOCK_SIZE, width); int max_i = MIN(i0 + BLOCK_SIZE, width);
int i, j; int i, j;
if (i0 == j0) if (i0 == j0)
{ {
for (j = j0; j < max_j; j++) for (j = j0; j < max_j; j++)
for (i = i0; i < j; i++) for (i = i0; i < j; i++)
{ {
guchar tmp = buffer[j * width + i]; guchar tmp = buffer[j * width + i];
buffer[j * width + i] = buffer[i * width + j]; buffer[j * width + i] = buffer[i * width + j];
buffer[i * width + j] = tmp; buffer[i * width + j] = tmp;
} }
} }
else else
{ {
for (j = j0; j < max_j; j++) for (j = j0; j < max_j; j++)
for (i = i0; i < max_i; i++) for (i = i0; i < max_i; i++)
{ {
guchar tmp = buffer[j * width + i]; guchar tmp = buffer[j * width + i];
buffer[j * width + i] = buffer[i * width + j]; buffer[j * width + i] = buffer[i * width + j];
buffer[i * width + j] = tmp; buffer[i * width + j] = tmp;
} }
} }
} }
return buffer; return buffer;
} }
@ -683,15 +683,15 @@ flip_buffer (guchar *buffer,
for (i0 = 0; i0 < width; i0 += BLOCK_SIZE) for (i0 = 0; i0 < width; i0 += BLOCK_SIZE)
for (j0 = 0; j0 < height; j0 += BLOCK_SIZE) for (j0 = 0; j0 < height; j0 += BLOCK_SIZE)
{ {
int max_j = MIN(j0 + BLOCK_SIZE, height); int max_j = MIN(j0 + BLOCK_SIZE, height);
int max_i = MIN(i0 + BLOCK_SIZE, width); int max_i = MIN(i0 + BLOCK_SIZE, width);
int i, j; int i, j;
for (i = i0; i < max_i; i++) for (i = i0; i < max_i; i++)
for (j = j0; j < max_j; j++) for (j = j0; j < max_j; j++)
new_buffer[i * height + j] = buffer[j * width + i]; new_buffer[i * height + j] = buffer[j * width + i];
} }
g_free (buffer); g_free (buffer);
@ -763,7 +763,7 @@ make_shadow (MetaShadow *shadow,
cairo_region_get_rectangle (region, k, &rect); cairo_region_get_rectangle (region, k, &rect);
for (j = y_offset + rect.y; j < y_offset + rect.y + rect.height; j++) for (j = y_offset + rect.y; j < y_offset + rect.y + rect.height; j++)
memset (buffer + buffer_width * j + x_offset + rect.x, 255, rect.width); memset (buffer + buffer_width * j + x_offset + rect.x, 255, rect.width);
} }
/* Step 2: swap rows and columns */ /* Step 2: swap rows and columns */