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Set decorations as opaque, to optimise composition

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This commit is contained in:
Emmanuel Gil Peyrot 2017-12-26 20:07:29 +01:00 committed by linkmauve
parent dfc7eacd50
commit a0dbffb8f2
1 changed files with 20 additions and 6 deletions
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26
src/wl_window.c
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@ -224,9 +224,12 @@ static struct wl_buffer* createShmBuffer(const GLFWimage* image)
static void createDecoration(_GLFWdecorationWayland* decoration,
struct wl_surface* parent,
struct wl_buffer* buffer, int x, int y,
struct wl_buffer* buffer, GLFWbool opaque,
int x, int y,
int width, int height)
{
struct wl_region* region;
decoration->surface = wl_compositor_create_surface(_glfw.wl.compositor);
decoration->subsurface =
wl_subcompositor_get_subsurface(_glfw.wl.subcompositor,
@ -236,13 +239,24 @@ static void createDecoration(_GLFWdecorationWayland* decoration,
decoration->surface);
wp_viewport_set_destination(decoration->viewport, width, height);
wl_surface_attach(decoration->surface, buffer, 0, 0);
wl_surface_commit(decoration->surface);
if (opaque)
{
region = wl_compositor_create_region(_glfw.wl.compositor);
wl_region_add(region, 0, 0, width, height);
wl_surface_set_opaque_region(decoration->surface, region);
wl_surface_commit(decoration->surface);
wl_region_destroy(region);
}
else
wl_surface_commit(decoration->surface);
}
static void createDecorations(_GLFWwindow* window)
{
unsigned char data[] = { 224, 224, 224, 255 };
const GLFWimage image = { 1, 1, data };
GLFWbool opaque = (data[3] == 255);
if (!_glfw.wl.viewporter)
return;
@ -251,19 +265,19 @@ static void createDecorations(_GLFWwindow* window)
window->wl.decorations.buffer = createShmBuffer(&image);
createDecoration(&window->wl.decorations.top, window->wl.surface,
window->wl.decorations.buffer,
window->wl.decorations.buffer, opaque,
0, -_GLFW_DECORATION_TOP,
window->wl.width, _GLFW_DECORATION_TOP);
createDecoration(&window->wl.decorations.left, window->wl.surface,
window->wl.decorations.buffer,
window->wl.decorations.buffer, opaque,
-_GLFW_DECORATION_WIDTH, -_GLFW_DECORATION_TOP,
_GLFW_DECORATION_WIDTH, window->wl.height + _GLFW_DECORATION_TOP);
createDecoration(&window->wl.decorations.right, window->wl.surface,
window->wl.decorations.buffer,
window->wl.decorations.buffer, opaque,
window->wl.width, -_GLFW_DECORATION_TOP,
_GLFW_DECORATION_WIDTH, window->wl.height + _GLFW_DECORATION_TOP);
createDecoration(&window->wl.decorations.bottom, window->wl.surface,
window->wl.decorations.buffer,
window->wl.decorations.buffer, opaque,
-_GLFW_DECORATION_WIDTH, window->wl.height,
window->wl.width + _GLFW_DECORATION_HORIZONTAL, _GLFW_DECORATION_WIDTH);
}