biipadmin/Burn-My-Windows
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

🚚 Move shader code to GLSL files

Browse Source
This commit is contained in:
Simon Schneegans
2022-05-13 08:27:09 +02:00
parent 77d5de7b8e
commit 46cc997e2a
43 changed files with 1303 additions and 1334 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/TVEffect.js
+4 -58
View File
@@ -133,7 +133,6 @@ var TVEffect = class TVEffect {
if (utils.isInShellProcess()) {
const {Clutter, Shell} = imports.gi;
const shaderSnippets = Me.imports.src.shaderSnippets;
ShaderClass = GObject.registerClass({}, class ShaderClass extends Shell.GLSLEffect {
// This is called when the effect is used for the first time. This can be used to
@@ -160,64 +159,11 @@ if (utils.isInShellProcess()) {
// This is called by the constructor. This means, it's only called when the effect
// is used for the first time.
vfunc_build_pipeline() {
const declarations = `
// Inject some common shader snippets.
${shaderSnippets.standardUniforms()}
const decl =
utils.loadGLSLResource(`/shaders/${TVEffect.getNick()}-declarations.glsl`);
const code = utils.loadGLSLResource(`/shaders/${TVEffect.getNick()}.glsl`);
uniform vec3 uColor;
const float BLUR_WIDTH = 0.01; // Width of the gradients.
const float TB_TIME = 0.7; // Relative time for the top/bottom animation.
const float LR_TIME = 0.4; // Relative time for the left/right animation.
const float LR_DELAY = 0.6; // Delay after which the left/right animation starts.
const float FF_TIME = 0.1; // Relative time for the final fade to transparency.
`;
const code = `
float progress = uForOpening ? 1.0-uProgress : uProgress;
// All of these are in [0..1] during the different stages of the animation.
// tb refers to the top-bottom animation.
// lr refers to the left-right animation.
// ff refers to the final fade animation.
float tbProgress = smoothstep(0, 1, clamp(progress/TB_TIME, 0, 1));
float lrProgress = smoothstep(0, 1, clamp((progress - LR_DELAY)/LR_TIME, 0, 1));
float ffProgress = smoothstep(0, 1, clamp((progress - 1.0 + FF_TIME)/FF_TIME, 0, 1));
// This is a top-center-bottom gradient in [0..1..0]
float tb = cogl_tex_coord_in[0].t * 2;
tb = tb < 1 ? tb : 2 - tb;
// This is a left-center-right gradient in [0..1..0]
float lr = cogl_tex_coord_in[0].s * 2;
lr = lr < 1 ? lr : 2 - lr;
// Combine the progress values with the gradients to create the alpha masks.
float tbMask = 1 - smoothstep(0, 1, clamp((tbProgress - tb) / BLUR_WIDTH, 0, 1));
float lrMask = 1 - smoothstep(0, 1, clamp((lrProgress - lr) / BLUR_WIDTH, 0, 1));
float ffMask = 1 - smoothstep(0, 1, ffProgress);
// Assemble the final alpha value.
float mask = tbMask * lrMask * ffMask;
cogl_color_out = texture2D(uTexture, cogl_tex_coord_in[0].st);
// Shell.GLSLEffect uses straight alpha. So we have to convert from premultiplied.
if (cogl_color_out.a > 0) {
cogl_color_out.rgb /= cogl_color_out.a;
}
cogl_color_out.rgb = mix(cogl_color_out.rgb, uColor * cogl_color_out.a, smoothstep(0, 1, progress));
cogl_color_out.a *= mask;
// These are pretty useful for understanding how this works.
// cogl_color_out = vec4(vec3(tbMask), 1);
// cogl_color_out = vec4(vec3(lrMask), 1);
// cogl_color_out = vec4(vec3(ffMask), 1);
// cogl_color_out = vec4(vec3(mask), 1);
`;
this.add_glsl_snippet(Shell.SnippetHook.FRAGMENT, declarations, code, true);
this.add_glsl_snippet(Shell.SnippetHook.FRAGMENT, decl, code, true);
}
});
}