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wayland: implement alpha_modifier_v1

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This commit is contained in:
Julian Orth 2024-03-18 19:18:30 +01:00
parent 131f0481e8
commit ff54a8ab96
37 changed files with 655 additions and 89 deletions
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32
src/gfx_apis/gl.rs
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@ -73,7 +73,11 @@ use {
},
gfx_apis::gl::{
gl::texture::image_target,
renderer::{context::GlRenderContext, framebuffer::Framebuffer, texture::Texture},
renderer::{
context::{GlRenderContext, TexCopyType, TexSourceType},
framebuffer::Framebuffer,
texture::Texture,
},
sys::{
GL_BLEND, GL_FALSE, GL_FLOAT, GL_LINEAR, GL_TEXTURE0, GL_TEXTURE_MIN_FILTER,
GL_TRIANGLES, GL_TRIANGLE_STRIP,
@ -336,16 +340,20 @@ fn render_texture(ctx: &GlRenderContext, tex: &CopyTexture) {
},
false => &ctx.tex_internal,
};
let prog = match texture.gl.format.has_alpha {
true => {
(gles.glEnable)(GL_BLEND);
&progs.alpha
}
false => {
(gles.glDisable)(GL_BLEND);
&progs.solid
}
let copy_type = match tex.alpha.is_some() {
true => TexCopyType::Multiply,
false => TexCopyType::Identity,
};
let source_type = match texture.gl.format.has_alpha {
true => TexSourceType::HasAlpha,
false => TexSourceType::Opaque,
};
if (copy_type, source_type) == (TexCopyType::Identity, TexSourceType::Opaque) {
(gles.glDisable)(GL_BLEND);
} else {
(gles.glEnable)(GL_BLEND);
}
let prog = &progs[copy_type][source_type];
(gles.glUseProgram)(prog.prog.prog);
@ -354,6 +362,10 @@ fn render_texture(ctx: &GlRenderContext, tex: &CopyTexture) {
let texcoord = tex.source.to_points();
let pos = tex.target.to_points();
if let Some(alpha) = tex.alpha {
(gles.glUniform1f)(prog.alpha, alpha);
}
(gles.glVertexAttribPointer)(
prog.texcoord as _,
2,