diff options
author | Dongwon Kim <dongwon.kim@intel.com> | 2021-11-03 23:51:53 -0700 |
---|---|---|
committer | Gerd Hoffmann <kraxel@redhat.com> | 2021-11-05 12:29:44 +0100 |
commit | 1350ff156b25be65c599ecca9957ce6726c6d383 (patch) | |
tree | 22e8188a7762fb9402563d0be4f98cb9158ca805 /ui | |
parent | 7cf87257f751b5312ff5f151992016a722e273d8 (diff) |
ui/gtk-egl: blitting partial guest fb to the proper scanout surface
eb_fb_blit should be able to blit partial image of guest display (blob res)
in case multiple displays are configured for the guest and they are set as extended-
desktop mode.
v2: egl_fb includes dmabuf info then make egl_fb_blit position and size
parameters programmed in dmabuf structure (previously position/size
parameters were given to egl_fb_blit separately)
(Vivek Kasireddy)
changed the commit message as there is no interface change to egl_fb_blit
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Vivek Kasireddy <vivek.kasireddy@intel.com>
Signed-off-by: Dongwon Kim <dongwon.kim@intel.com>
Message-Id: <20211104065153.28897-6-dongwon.kim@intel.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Diffstat (limited to 'ui')
-rw-r--r-- | ui/egl-helpers.c | 25 |
1 files changed, 21 insertions, 4 deletions
diff --git a/ui/egl-helpers.c b/ui/egl-helpers.c index 385a3fa752..3a88245b67 100644 --- a/ui/egl-helpers.c +++ b/ui/egl-helpers.c @@ -90,14 +90,31 @@ void egl_fb_setup_new_tex(egl_fb *fb, int width, int height) void egl_fb_blit(egl_fb *dst, egl_fb *src, bool flip) { - GLuint y1, y2; + GLuint x1 = 0; + GLuint y1 = 0; + GLuint x2, y2; + GLuint w = src->width; + GLuint h = src->height; glBindFramebuffer(GL_READ_FRAMEBUFFER, src->framebuffer); glBindFramebuffer(GL_DRAW_FRAMEBUFFER, dst->framebuffer); glViewport(0, 0, dst->width, dst->height); - y1 = flip ? src->height : 0; - y2 = flip ? 0 : src->height; - glBlitFramebuffer(0, y1, src->width, y2, + + if (src->dmabuf) { + x1 = src->dmabuf->x; + y1 = src->dmabuf->y; + w = src->dmabuf->scanout_width; + h = src->dmabuf->scanout_height; + } + + w = (x1 + w) > src->width ? src->width - x1 : w; + h = (y1 + h) > src->height ? src->height - y1 : h; + + y2 = flip ? y1 : h + y1; + y1 = flip ? h + y1 : y1; + x2 = x1 + w; + + glBlitFramebuffer(x1, y1, x2, y2, 0, 0, dst->width, dst->height, GL_COLOR_BUFFER_BIT, GL_LINEAR); } |