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ngl: Fix the coloring shader on GLES 2.0

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Integer varyings didn’t exist in GLSL ES 1.00, neither did the flat
attribute.
This commit is contained in:
Emmanuel Gil Peyrot 2021-03-13 22:00:54 +00:00
parent d2258fb316
commit 064947356a
1 changed files with 5 additions and 5 deletions
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10
gsk/ngl/resources/coloring.glsl
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@ -2,7 +2,7 @@
// coloring.glsl
_OUT_ vec4 final_color;
flat _OUT_ int use_color;
_OUT_ float use_color;
void main() {
gl_Position = u_projection * u_modelview * vec4(aPosition, 0.0, 1.0);
@ -13,9 +13,9 @@ void main() {
// and color glpyhs (used as source). The renderer sets
// aColor to vec4(-1) for color glyhs.
if (distance(aColor, vec4(-1)) < 0.001)
use_color = 0;
use_color = 0.0;
else
use_color = 1;
use_color = 1.0;
final_color = gsk_premultiply(aColor) * u_alpha;
}
@ -24,12 +24,12 @@ void main() {
// coloring.glsl
_IN_ vec4 final_color;
flat _IN_ int use_color;
_IN_ float use_color;
void main() {
vec4 diffuse = GskTexture(u_source, vUv);
if (use_color == 1)
if (use_color > 0.0)
gskSetOutputColor(final_color * diffuse.a);
else
gskSetOutputColor(diffuse * u_alpha);