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Fix high-DPI scaling with OpenGL
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We used to render multiple copies (four for a scaling factor of 2).
This commit is contained in:
Přemysl Eric Janouch 2024-04-13 05:14:04 +02:00
parent e3ec07a19f
commit 3c8ddcaf26
Signed by: p
GPG Key ID: A0420B94F92B9493
1 changed files with 5 additions and 1 deletions
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6
fiv-view.c
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@ -851,6 +851,10 @@ gl_draw(FivView *self, cairo_t *cr)
cliph = allocation.height;
}
int scale = gtk_widget_get_scale_factor(GTK_WIDGET(self));
clipw *= scale;
cliph *= scale;
enum { SRC, DEST };
GLuint textures[2] = {};
glGenTextures(2, textures);
@ -963,7 +967,7 @@ gl_draw(FivView *self, cairo_t *cr)
GdkWindow *window = gtk_widget_get_window(GTK_WIDGET(self));
cairo_translate(cr, dx, dy);
gdk_cairo_draw_from_gl(
cr, window, textures[DEST], GL_TEXTURE, 1, 0, 0, clipw, cliph);
cr, window, textures[DEST], GL_TEXTURE, scale, 0, 0, clipw, cliph);
gdk_gl_context_make_current(self->gl_context);
glDeleteBuffers(1, &vertex_buffer);