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gtk/gsk/resources/glsl/preamble.vs.glsl

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gl renderer: Rewrite shader builder Use a unified approach to write both vertex and fragment shader in the same file.
2019-12-14 21:06:12 +00:00
uniform mat4 u_projection;
uniform mat4 u_modelview;
gl renderer: Compute final color in vertex shader This is a very often used shader. No need to to do this for every fragment.
2019-12-17 14:55:24 +00:00
uniform float u_alpha;
gl renderer: Rewrite shader builder Use a unified approach to write both vertex and fragment shader in the same file.
2019-12-14 21:06:12 +00:00
gl renderer: Shorten shaders a bit
2020-01-20 10:21:52 +00:00
#if defined(GSK_GLES) || defined(GSK_LEGACY)
gl renderer: Rewrite shader builder Use a unified approach to write both vertex and fragment shader in the same file.
2019-12-14 21:06:12 +00:00
attribute vec2 aPosition;
attribute vec2 aUv;
gl renderer: Add some in/out compat glue to the shaders so we can use _IN_ and _OUT_ and get the right things for desktop/es/legacy GL.
2019-12-17 11:19:37 +00:00
_OUT_ vec2 vUv;
gl renderer: Rewrite shader builder Use a unified approach to write both vertex and fragment shader in the same file.
2019-12-14 21:06:12 +00:00
#else
gl renderer: Add some in/out compat glue to the shaders so we can use _IN_ and _OUT_ and get the right things for desktop/es/legacy GL.
2019-12-17 11:19:37 +00:00
_IN_ vec2 aPosition;
_IN_ vec2 aUv;
_OUT_ vec2 vUv;
gl renderer: Rewrite shader builder Use a unified approach to write both vertex and fragment shader in the same file.
2019-12-14 21:06:12 +00:00
#endif
gl renderer: Move rect transformation to the vertex shader No need to do this for every fragment.
2020-01-19 19:08:23 +00:00
// amount is: top, right, bottom, left
gl: Add some namespacing to the preamble symbols This adds a gsk prefix to the stuff in the preamble, as we want to avoid it conflicting with things in the main shader. Especially once we start allow some customization of shaders.
2020-09-18 09:35:29 +00:00
GskRoundedRect
gsk_rounded_rect_shrink (GskRoundedRect r, vec4 amount)
gl renderer: Move rect transformation to the vertex shader No need to do this for every fragment.
2020-01-19 19:08:23 +00:00
{
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;
gl: Add some namespacing to the preamble symbols This adds a gsk prefix to the stuff in the preamble, as we want to avoid it conflicting with things in the main shader. Especially once we start allow some customization of shaders.
2020-09-18 09:35:29 +00:00
return GskRoundedRect (new_bounds, new_corner_points1, new_corner_points2);
gl renderer: Move rect transformation to the vertex shader No need to do this for every fragment.
2020-01-19 19:08:23 +00:00
}
void
gl: Add some namespacing to the preamble symbols This adds a gsk prefix to the stuff in the preamble, as we want to avoid it conflicting with things in the main shader. Especially once we start allow some customization of shaders.
2020-09-18 09:35:29 +00:00
gsk_rounded_rect_offset(inout GskRoundedRect r, vec2 offset)
gl renderer: Move rect transformation to the vertex shader No need to do this for every fragment.
2020-01-19 19:08:23 +00:00
{
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;
}
gl: Add some namespacing to the preamble symbols This adds a gsk prefix to the stuff in the preamble, as we want to avoid it conflicting with things in the main shader. Especially once we start allow some customization of shaders.
2020-09-18 09:35:29 +00:00
void gsk_rounded_rect_transform(inout GskRoundedRect r, mat4 mat)
gl renderer: Move rect transformation to the vertex shader No need to do this for every fragment.
2020-01-19 19:08:23 +00:00
{
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...
gl: Add some namespacing to the preamble symbols This adds a gsk prefix to the stuff in the preamble, as we want to avoid it conflicting with things in the main shader. Especially once we start allow some customization of shaders.
2020-09-18 09:35:29 +00:00
#define gsk_rounded_rect_encode(r, uni) uni[0] = r.bounds; uni[1] = r.corner_points1; uni[2] = r.corner_points2;
gl renderer: Move rect transformation to the vertex shader No need to do this for every fragment.
2020-01-19 19:08:23 +00:00
#else
gl: Add some namespacing to the preamble symbols This adds a gsk prefix to the stuff in the preamble, as we want to avoid it conflicting with things in the main shader. Especially once we start allow some customization of shaders.
2020-09-18 09:35:29 +00:00
void gsk_rounded_rect_encode(GskRoundedRect r, out _GSK_ROUNDED_RECT_UNIFORM_ out_r)
gl renderer: Move rect transformation to the vertex shader No need to do this for every fragment.
2020-01-19 19:08:23 +00:00
{
#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
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