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egl-headless: add dmabuf support 

Add support for the new dmabuf interface.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id: 20171010135453.6704-7-kraxel@redhat.com
This commit is contained in:
Gerd Hoffmann 2017-10-10 15:54:53 +02:00
parent 0eb50c2737
commit a351791700
1 changed files with 57 additions and 2 deletions
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59
ui/egl-headless.c
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@ -4,13 +4,18 @@
#include "ui/console.h"
#include "ui/egl-helpers.h"
#include "ui/egl-context.h"
#include "ui/shader.h"
typedef struct egl_dpy {
DisplayChangeListener dcl;
DisplaySurface *ds;
QemuGLShader *gls;
egl_fb guest_fb;
egl_fb cursor_fb;
egl_fb blit_fb;
bool y_0_top;
uint32_t pos_x;
uint32_t pos_y;
} egl_dpy;
/* ------------------------------------------------------------------ */
@ -65,6 +70,43 @@ static void egl_scanout_texture(DisplayChangeListener *dcl,
}
}
static void egl_scanout_dmabuf(DisplayChangeListener *dcl,
QemuDmaBuf *dmabuf)
{
egl_dmabuf_import_texture(dmabuf);
if (!dmabuf->texture) {
return;
}
egl_scanout_texture(dcl, dmabuf->texture,
false, dmabuf->width, dmabuf->height,
0, 0, dmabuf->width, dmabuf->height);
}
static void egl_cursor_dmabuf(DisplayChangeListener *dcl,
QemuDmaBuf *dmabuf,
uint32_t pos_x, uint32_t pos_y)
{
egl_dpy *edpy = container_of(dcl, egl_dpy, dcl);
edpy->pos_x = pos_x;
edpy->pos_y = pos_y;
egl_dmabuf_import_texture(dmabuf);
if (!dmabuf->texture) {
return;
}
egl_fb_setup_for_tex(&edpy->cursor_fb, dmabuf->width, dmabuf->height,
dmabuf->texture, false);
}
static void egl_release_dmabuf(DisplayChangeListener *dcl,
QemuDmaBuf *dmabuf)
{
egl_dmabuf_release_texture(dmabuf);
}
static void egl_scanout_flush(DisplayChangeListener *dcl,
uint32_t x, uint32_t y,
uint32_t w, uint32_t h)
@ -78,9 +120,18 @@ static void egl_scanout_flush(DisplayChangeListener *dcl,
assert(surface_height(edpy->ds) == edpy->guest_fb.height);
assert(surface_format(edpy->ds) == PIXMAN_x8r8g8b8);
egl_fb_blit(&edpy->blit_fb, &edpy->guest_fb, edpy->y_0_top);
egl_fb_read(surface_data(edpy->ds), &edpy->blit_fb);
if (edpy->cursor_fb.texture) {
/* have cursor -> render using textures */
egl_texture_blit(edpy->gls, &edpy->blit_fb, &edpy->guest_fb,
!edpy->y_0_top);
egl_texture_blend(edpy->gls, &edpy->blit_fb, &edpy->cursor_fb,
!edpy->y_0_top, edpy->pos_x, edpy->pos_y);
} else {
/* no cursor -> use simple framebuffer blit */
egl_fb_blit(&edpy->blit_fb, &edpy->guest_fb, edpy->y_0_top);
}
egl_fb_read(surface_data(edpy->ds), &edpy->blit_fb);
dpy_gfx_update(edpy->dcl.con, x, y, w, h);
}
@ -97,6 +148,9 @@ static const DisplayChangeListenerOps egl_ops = {
.dpy_gl_scanout_disable = egl_scanout_disable,
.dpy_gl_scanout_texture = egl_scanout_texture,
.dpy_gl_scanout_dmabuf = egl_scanout_dmabuf,
.dpy_gl_cursor_dmabuf = egl_cursor_dmabuf,
.dpy_gl_release_dmabuf = egl_release_dmabuf,
.dpy_gl_update = egl_scanout_flush,
};
@ -120,6 +174,7 @@ void egl_headless_init(void)
edpy = g_new0(egl_dpy, 1);
edpy->dcl.con = con;
edpy->dcl.ops = &egl_ops;
edpy->gls = qemu_gl_init_shader();
register_displaychangelistener(&edpy->dcl);
}
}