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Make make not fallback match GL

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We were not handling the inverted-luminance
case the same way, and it caused a test to
fail. Yay for tests.
This commit is contained in:
Matthias Clasen 2023-02-14 21:46:58 -05:00
parent 951db28f71
commit 351abadee7
1 changed files with 9 additions and 5 deletions
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14
gsk/gskrendernodeimpl.c
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@ -3418,7 +3418,7 @@ apply_color_matrix_to_pattern (cairo_pattern_t *pattern,
cairo_surface_t *surface, *image_surface;
guchar *data;
gsize x, y, width, height, stride;
float alpha, orig_alpha;
float alpha;
graphene_vec4_t pixel;
guint32* pixel_data;
@ -3435,7 +3435,7 @@ apply_color_matrix_to_pattern (cairo_pattern_t *pattern,
pixel_data = (guint32 *) data;
for (x = 0; x < width; x++)
{
alpha = orig_alpha = ((pixel_data[x] >> 24) & 0xFF) / 255.0;
alpha = ((pixel_data[x] >> 24) & 0xFF) / 255.0;
if (alpha == 0)
{
@ -3451,13 +3451,17 @@ apply_color_matrix_to_pattern (cairo_pattern_t *pattern,
graphene_matrix_transform_vec4 (color_matrix, &pixel, &pixel);
}
if (multiply_alpha)
graphene_vec4_init (&pixel,
graphene_vec4_get_x (&pixel),
graphene_vec4_get_y (&pixel),
graphene_vec4_get_z (&pixel),
alpha * graphene_vec4_get_w (&pixel));
graphene_vec4_add (&pixel, color_offset, &pixel);
alpha = graphene_vec4_get_w (&pixel);
if (multiply_alpha)
alpha *= orig_alpha;
if (alpha > 0.0)
{
alpha = MIN (alpha, 1.0);