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Kovid Goyal
2025-08-11 01:16:58 +05:30
parent 1073e59598
commit dea16c2ef7
1 changed files with 43 additions and 37 deletions
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80
kitty/shaders.c
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@@ -1173,46 +1173,52 @@ draw_resizing_text(OSWindow *w) {
}
}
static void
start_os_window_rendering(OSWindow *os_window) {
if (os_window->live_resize.in_progress) {
blank_os_window(os_window);
save_viewport_using_bottom_left_origin(0, 0, os_window->viewport_width, os_window->viewport_height);
}
if (os_window->needs_layers) {
if (os_window->indirect_output.width != os_window->viewport_width || os_window->indirect_output.height != os_window->viewport_height) {
if (os_window->indirect_output.texture_id) free_texture(&os_window->indirect_output.texture_id);
if (os_window->indirect_output.framebuffer_id) free_framebuffer(&os_window->indirect_output.framebuffer_id);
}
if (os_window->indirect_output.texture_id == 0) {
os_window->indirect_output.width = os_window->viewport_width;
os_window->indirect_output.height = os_window->viewport_height;
setup_texture_as_render_target((unsigned) os_window->viewport_width, (unsigned)os_window->viewport_height, &os_window->indirect_output.texture_id, &os_window->indirect_output.framebuffer_id);
}
set_framebuffer_to_use_for_output(os_window->indirect_output.framebuffer_id);
bind_framebuffer_for_output(0);
clear_current_framebuffer();
draw_bg_image(os_window);
}
}
static void
stop_os_window_rendering(OSWindow *os_window, Tab *tab, Window *active_window) {
if (OPT(cursor_trail) && tab->cursor_trail.needs_render) draw_cursor_trail(&tab->cursor_trail, active_window);
if (os_window->needs_layers) {
set_framebuffer_to_use_for_output(0);
bind_framebuffer_for_output(0);
bind_program(BLIT_PROGRAM);
glActiveTexture(GL_TEXTURE0 + GRAPHICS_UNIT);
glBindTexture(GL_TEXTURE_2D, os_window->indirect_output.texture_id);
glUniform4f(blit_program_layout.uniforms.src_rect, 0, 1, 1, 0);
glUniform4f(blit_program_layout.uniforms.dest_rect, -1, 1, 1, -1);
draw_quad(false, 0);
}
if (os_window->live_resize.in_progress) {
restore_viewport();
draw_resizing_text(os_window);
}
}
void
setup_os_window_for_rendering(OSWindow *os_window, Tab *tab, Window *active_window, bool start) {
if (start) {
if (os_window->live_resize.in_progress) {
blank_os_window(os_window);
save_viewport_using_bottom_left_origin(0, 0, os_window->viewport_width, os_window->viewport_height);
}
if (os_window->needs_layers) {
if (os_window->indirect_output.width != os_window->viewport_width || os_window->indirect_output.height != os_window->viewport_height) {
if (os_window->indirect_output.texture_id) free_texture(&os_window->indirect_output.texture_id);
if (os_window->indirect_output.framebuffer_id) free_framebuffer(&os_window->indirect_output.framebuffer_id);
}
if (os_window->indirect_output.texture_id == 0) {
os_window->indirect_output.width = os_window->viewport_width;
os_window->indirect_output.height = os_window->viewport_height;
setup_texture_as_render_target((unsigned) os_window->viewport_width, (unsigned)os_window->viewport_height, &os_window->indirect_output.texture_id, &os_window->indirect_output.framebuffer_id);
}
set_framebuffer_to_use_for_output(os_window->indirect_output.framebuffer_id);
bind_framebuffer_for_output(0);
clear_current_framebuffer();
draw_bg_image(os_window);
}
} else {
if (OPT(cursor_trail) && tab->cursor_trail.needs_render) draw_cursor_trail(&tab->cursor_trail, active_window);
if (os_window->needs_layers) {
set_framebuffer_to_use_for_output(0);
bind_framebuffer_for_output(0);
bind_program(BLIT_PROGRAM);
glActiveTexture(GL_TEXTURE0 + GRAPHICS_UNIT);
glBindTexture(GL_TEXTURE_2D, os_window->indirect_output.texture_id);
glUniform4f(blit_program_layout.uniforms.src_rect, 0, 1, 1, 0);
glUniform4f(blit_program_layout.uniforms.dest_rect, -1, 1, 1, -1);
draw_quad(false, 0);
}
if (os_window->live_resize.in_progress) {
restore_viewport();
draw_resizing_text(os_window);
}
}
if (start) start_os_window_rendering(os_window);
else stop_os_window_rendering(os_window, tab, active_window);
}
// }}}