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cut the GPU load of moving the mouse over the 3D viewport (#15674)

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Co-authored-by: Rodrigo Faselli <162915171+RF47@users.noreply.github.com>
This commit is contained in:
Kris Austin
2026-09-18 20:19:37 -03:00
committed by GitHub
co-authored by Rodrigo Faselli
parent e0410db22e
commit 213c6569ab
30 changed files with 876 additions and 269 deletions
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src/slic3r/GUI/GLTexture.cpp
+23
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@@ -707,6 +707,29 @@ void GLTexture::render_sub_texture(unsigned int tex_id, float left, float right,
glsafe(::glDisable(GL_BLEND));
}
void GLTexture::copy_from_framebuffer(unsigned int& tex_id, std::array<unsigned int, 2>& tex_size, unsigned int width, unsigned int height, int filter)
{
if (tex_id == 0) {
glsafe(::glGenTextures(1, &tex_id));
glsafe(::glBindTexture(GL_TEXTURE_2D, tex_id));
glsafe(::glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, filter));
glsafe(::glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, filter));
glsafe(::glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE));
glsafe(::glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE));
}
else
glsafe(::glBindTexture(GL_TEXTURE_2D, tex_id));
if (tex_size[0] != width || tex_size[1] != height) {
glsafe(::glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, width, height, 0, GL_RGBA, GL_UNSIGNED_BYTE, nullptr));
tex_size = { width, height };
}
// Copying from the default framebuffer resolves its multisampling.
glsafe(::glCopyTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, 0, 0, width, height));
glsafe(::glBindTexture(GL_TEXTURE_2D, 0));
}
static bool to_squared_power_of_two(const std::string& filename, int max_size_px, int& w, int& h)
{
auto is_power_of_two = [](int v) { return v != 0 && (v & (v - 1)) == 0; };