gtk2/gsk/gl/resources/preamble.vs.glsl
Matthias Clasen 900a4e4d31 gsk: Move shader resources
Move the resources of each renderer to its subdirectory.
We've previously done that for the ngl renderer, but it
is better to be consistent and do it for all the renderers.
2021-04-03 08:24:58 -04:00

70 lines
2.0 KiB
GLSL

uniform mat4 u_projection;
uniform mat4 u_modelview;
uniform float u_alpha;
#if defined(GSK_GLES) || defined(GSK_LEGACY)
attribute vec2 aPosition;
attribute vec2 aUv;
_OUT_ vec2 vUv;
#else
_IN_ vec2 aPosition;
_IN_ vec2 aUv;
_OUT_ vec2 vUv;
#endif
// amount is: top, right, bottom, left
GskRoundedRect
gsk_rounded_rect_shrink (GskRoundedRect r, vec4 amount)
{
vec4 new_bounds = r.bounds + vec4(1.0,1.0,-1.0,-1.0) * amount.wxyz;
vec4 new_corner_points1 = r.corner_points1;
vec4 new_corner_points2 = r.corner_points2;
if (r.corner_points1.xy == r.bounds.xy) new_corner_points1.xy = new_bounds.xy;
if (r.corner_points1.zw == r.bounds.zy) new_corner_points1.zw = new_bounds.zy;
if (r.corner_points2.xy == r.bounds.zw) new_corner_points2.xy = new_bounds.zw;
if (r.corner_points2.zw == r.bounds.xw) new_corner_points2.zw = new_bounds.xw;
return GskRoundedRect (new_bounds, new_corner_points1, new_corner_points2);
}
void
gsk_rounded_rect_offset(inout GskRoundedRect r, vec2 offset)
{
r.bounds.xy += offset;
r.bounds.zw += offset;
r.corner_points1.xy += offset;
r.corner_points1.zw += offset;
r.corner_points2.xy += offset;
r.corner_points2.zw += offset;
}
void gsk_rounded_rect_transform(inout GskRoundedRect r, mat4 mat)
{
r.bounds.xy = (mat * vec4(r.bounds.xy, 0.0, 1.0)).xy;
r.bounds.zw = (mat * vec4(r.bounds.zw, 0.0, 1.0)).xy;
r.corner_points1.xy = (mat * vec4(r.corner_points1.xy, 0.0, 1.0)).xy;
r.corner_points1.zw = (mat * vec4(r.corner_points1.zw, 0.0, 1.0)).xy;
r.corner_points2.xy = (mat * vec4(r.corner_points2.xy, 0.0, 1.0)).xy;
r.corner_points2.zw = (mat * vec4(r.corner_points2.zw, 0.0, 1.0)).xy;
}
#if defined(GSK_LEGACY)
// Can't have out or inout array parameters...
#define gsk_rounded_rect_encode(r, uni) uni[0] = r.bounds; uni[1] = r.corner_points1; uni[2] = r.corner_points2;
#else
void gsk_rounded_rect_encode(GskRoundedRect r, out _GSK_ROUNDED_RECT_UNIFORM_ out_r)
{
#if defined(GSK_GLES)
out_r[0] = r.bounds;
out_r[1] = r.corner_points1;
out_r[2] = r.corner_points2;
#else
out_r = r;
#endif
}
#endif