From 3b32ccf56d0ac8419d897842f21811c7c91d1471 Mon Sep 17 00:00:00 2001
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From: Jeffy Chen <jeffy.chen@rock-chips.com>
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Date: Fri, 23 Oct 2020 17:37:04 +0800
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Subject: [PATCH 34/74] backend-drm: Support using ARGB8888 gbm_format
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Tested with:
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/etc/xdg/weston/weston.ini:
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[core]
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gbm-format=argb8888
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Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com>
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---
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libweston/backend-drm/drm-gbm.c | 8 ++++++--
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libweston/backend-drm/drm.c | 3 +++
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2 files changed, 9 insertions(+), 2 deletions(-)
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diff --git a/libweston/backend-drm/drm-gbm.c b/libweston/backend-drm/drm-gbm.c
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index ecc7a5f..bcc2b17 100644
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--- a/libweston/backend-drm/drm-gbm.c
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+++ b/libweston/backend-drm/drm-gbm.c
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@@ -282,8 +282,10 @@ drm_output_render_gl(struct drm_output_state *state, pixman_region32_t *damage)
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{
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struct drm_output *output = state->output;
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struct drm_backend *b = to_drm_backend(output->base.compositor);
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+ const struct pixel_format_info *format;
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struct gbm_bo *bo;
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struct drm_fb *ret;
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+ bool is_opaque;
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output->base.compositor->renderer->repaint_output(&output->base,
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damage);
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@@ -295,8 +297,10 @@ drm_output_render_gl(struct drm_output_state *state, pixman_region32_t *damage)
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return NULL;
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}
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- /* The renderer always produces an opaque image. */
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- ret = drm_fb_get_from_bo(bo, b, true, BUFFER_GBM_SURFACE);
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+ format = pixel_format_get_info(output->gbm_format);
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+ is_opaque = format && pixel_format_is_opaque(format);
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+
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+ ret = drm_fb_get_from_bo(bo, b, is_opaque, BUFFER_GBM_SURFACE);
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if (!ret) {
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weston_log("failed to get drm_fb for bo\n");
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gbm_surface_release_buffer(output->gbm_surface, bo);
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diff --git a/libweston/backend-drm/drm.c b/libweston/backend-drm/drm.c
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index 3667b8d..df9db5c 100644
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--- a/libweston/backend-drm/drm.c
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+++ b/libweston/backend-drm/drm.c
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@@ -1554,6 +1554,9 @@ drm_output_init_pixman(struct drm_output *output, struct drm_backend *b)
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};
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switch (format) {
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+ case DRM_FORMAT_ARGB8888:
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+ pixman_format = PIXMAN_a8r8g8b8;
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+ break;
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case DRM_FORMAT_XRGB8888:
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pixman_format = PIXMAN_x8r8g8b8;
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break;
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--
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2.20.1
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