diff options
| author | Benjamin Franzke <benjaminfranzke@googlemail.com> | 2011-09-08 08:01:46 +0200 |
|---|---|---|
| committer | Chia-I Wu <olv@lunarg.com> | 2011-09-08 16:05:41 +0800 |
| commit | 7645c49e07b638de94f03d5f71fde397066a46ee (patch) | |
| tree | ecf464252548c8099bb4d82a09475c68dbaba8aa /src | |
| parent | 1191d203632e2954ce59163f87c9896b1c6ed40a (diff) | |
st/egl: add premultiplied alpha support to wayland
Return true for NATIVE_PARAM_PREMULTIPLIED_ALPHA when all formats with
alpha support premultiplied alpha.
(Based on Chia-I Wu's patch)
[olv: remove the use of param_premultiplied_alpha from the original
patch]
Diffstat (limited to 'src')
4 files changed, 24 insertions, 4 deletions
diff --git a/src/gallium/state_trackers/egl/wayland/native_drm.c b/src/gallium/state_trackers/egl/wayland/native_drm.c index 9f6757b3c6..5618f3ec29 100644 --- a/src/gallium/state_trackers/egl/wayland/native_drm.c +++ b/src/gallium/state_trackers/egl/wayland/native_drm.c @@ -109,8 +109,8 @@ wayland_create_drm_buffer(struct wayland_display *display, switch (surface->color_format) { case PIPE_FORMAT_B8G8R8A8_UNORM: - /* assume premultiplied */ - format = WL_DRM_FORMAT_PREMULTIPLIED_ARGB32; + format = (surface->premultiplied_alpha) ? + WL_DRM_FORMAT_PREMULTIPLIED_ARGB32 : WL_DRM_FORMAT_ARGB32; break; case PIPE_FORMAT_B8G8R8X8_UNORM: format = WL_DRM_FORMAT_XRGB32; diff --git a/src/gallium/state_trackers/egl/wayland/native_shm.c b/src/gallium/state_trackers/egl/wayland/native_shm.c index 8a50915a9c..f9a7d81c04 100644 --- a/src/gallium/state_trackers/egl/wayland/native_shm.c +++ b/src/gallium/state_trackers/egl/wayland/native_shm.c @@ -94,8 +94,8 @@ wayland_create_shm_buffer(struct wayland_display *display, switch (surface->color_format) { case PIPE_FORMAT_B8G8R8A8_UNORM: - /* assume premultiplied */ - format = WL_SHM_FORMAT_PREMULTIPLIED_ARGB32; + format = (surface->premultiplied_alpha) ? + WL_SHM_FORMAT_PREMULTIPLIED_ARGB32 : WL_SHM_FORMAT_ARGB32; break; case PIPE_FORMAT_B8G8R8X8_UNORM: format = WL_SHM_FORMAT_XRGB32; diff --git a/src/gallium/state_trackers/egl/wayland/native_wayland.c b/src/gallium/state_trackers/egl/wayland/native_wayland.c index 7273d0ef9a..c6942931ec 100644 --- a/src/gallium/state_trackers/egl/wayland/native_wayland.c +++ b/src/gallium/state_trackers/egl/wayland/native_wayland.c @@ -99,9 +99,14 @@ static int wayland_display_get_param(struct native_display *ndpy, enum native_param_type param) { + struct wayland_display *display = wayland_display(ndpy); int val; switch (param) { + case NATIVE_PARAM_PREMULTIPLIED_ALPHA: + val = ((display->formats & HAS_ARGB32) && + (display->formats & HAS_PREMUL_ARGB32)); + break; case NATIVE_PARAM_USE_NATIVE_BUFFER: case NATIVE_PARAM_PRESERVE_BUFFER: case NATIVE_PARAM_MAX_SWAP_INTERVAL: @@ -322,6 +327,20 @@ wayland_surface_present(struct native_surface *nsurf, if (ctrl->preserve || ctrl->swap_interval) return FALSE; + /* force buffers to be re-created if they will be presented differently */ + if (surface->premultiplied_alpha != ctrl->premultiplied_alpha) { + enum wayland_buffer_type buffer; + + for (buffer = 0; buffer < WL_BUFFER_COUNT; ++buffer) { + if (surface->buffer[buffer]) { + wl_buffer_destroy(surface->buffer[buffer]); + surface->buffer[buffer] = NULL; + } + } + + surface->premultiplied_alpha = ctrl->premultiplied_alpha; + } + switch (ctrl->natt) { case NATIVE_ATTACHMENT_FRONT_LEFT: ret = TRUE; diff --git a/src/gallium/state_trackers/egl/wayland/native_wayland.h b/src/gallium/state_trackers/egl/wayland/native_wayland.h index 0350a95815..143428c5f9 100644 --- a/src/gallium/state_trackers/egl/wayland/native_wayland.h +++ b/src/gallium/state_trackers/egl/wayland/native_wayland.h @@ -87,6 +87,7 @@ struct wayland_surface { unsigned int attachment_mask; boolean block_swap_buffers; + boolean premultiplied_alpha; }; struct wayland_config { |