[libvirt] [PULL 06/14] ui/egl-helpers: Augment parameter list of egl_texture_blend() to convey scales of viewport

From: Chen Zhang <tgfbeta(a)me.com&gt; This would help gtk-egl display showing scaled DMABuf cursor images when gtk window was zoomed. A default scale of (1.0, 1.0) was presumed for call sites where no scaling is needed. Signed-off-by: Chen Zhang <tgfbeta(a)me.com&gt; Message-id: 23B229B3-3095-4DFB-8369-866784808D30(a)me.com Signed-off-by: Gerd Hoffmann <kraxel(a)redhat.com&gt; --- include/ui/egl-helpers.h | 2 +- ui/egl-headless.c | 3 ++- ui/egl-helpers.c | 9 +++++---- ui/gtk-egl.c | 3 ++- ui/spice-display.c | 2 +- 5 files changed, 11 insertions(+), 8 deletions(-) diff --git a/include/ui/egl-helpers.h b/include/ui/egl-helpers.h index 3fc656a7ba..b976cb8728 100644 --- a/include/ui/egl-helpers.h +++ b/include/ui/egl-helpers.h @@ -27,7 +27,7 @@ void egl_fb_read(void *dst, egl_fb *src); void egl_texture_blit(QemuGLShader *gls, egl_fb *dst, egl_fb *src, bool flip); void egl_texture_blend(QemuGLShader *gls, egl_fb *dst, egl_fb *src, bool flip, - int x, int y); + int x, int y, double scale_x, double scale_y); #ifdef CONFIG_OPENGL_DMABUF diff --git a/ui/egl-headless.c b/ui/egl-headless.c index 519e7bad32..e67b47aeff 100644 --- a/ui/egl-headless.c +++ b/ui/egl-headless.c @@ -142,7 +142,8 @@ static void egl_scanout_flush(DisplayChangeListener *dcl, 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); + !edpy->y_0_top, edpy->pos_x, edpy->pos_y, + 1.0, 1.0); } else { /* no cursor -> use simple framebuffer blit */ egl_fb_blit(&edpy->blit_fb, &edpy->guest_fb, edpy->y_0_top); diff --git a/ui/egl-helpers.c b/ui/egl-helpers.c index 5e115b3fb4..e90eef8c9c 100644 --- a/ui/egl-helpers.c +++ b/ui/egl-helpers.c @@ -120,14 +120,15 @@ void egl_texture_blit(QemuGLShader *gls, egl_fb *dst, egl_fb *src, bool flip) } void egl_texture_blend(QemuGLShader *gls, egl_fb *dst, egl_fb *src, bool flip, - int x, int y) + int x, int y, double scale_x, double scale_y) { glBindFramebuffer(GL_FRAMEBUFFER_EXT, dst->framebuffer); + int w = scale_x * src->width; + int h = scale_y * src->height; if (flip) { - glViewport(x, y, src->width, src->height); + glViewport(x, y, w, h); } else { - glViewport(x, dst->height - src->height - y, - src->width, src->height); + glViewport(x, dst->height - h - y, w, h); } glEnable(GL_TEXTURE_2D); glBindTexture(GL_TEXTURE_2D, src->texture); diff --git a/ui/gtk-egl.c b/ui/gtk-egl.c index afd17148c0..42801b688b 100644 --- a/ui/gtk-egl.c +++ b/ui/gtk-egl.c @@ -278,7 +278,8 @@ void gd_egl_scanout_flush(DisplayChangeListener *dcl, vc->gfx.y0_top); egl_texture_blend(vc->gfx.gls, &vc->gfx.win_fb, &vc->gfx.cursor_fb, vc->gfx.y0_top, - vc->gfx.cursor_x, vc->gfx.cursor_y); + vc->gfx.cursor_x, vc->gfx.cursor_y, + vc->gfx.scale_x, vc->gfx.scale_y); } else { egl_fb_blit(&vc->gfx.win_fb, &vc->gfx.guest_fb, !vc->gfx.y0_top); } diff --git a/ui/spice-display.c b/ui/spice-display.c index 52f8cb5ae1..aea6f6ebce 100644 --- a/ui/spice-display.c +++ b/ui/spice-display.c @@ -1090,7 +1090,7 @@ static void qemu_spice_gl_update(DisplayChangeListener *dcl, egl_texture_blit(ssd->gls, &ssd->blit_fb, &ssd->guest_fb, !y_0_top); egl_texture_blend(ssd->gls, &ssd->blit_fb, &ssd->cursor_fb, - !y_0_top, x, y); + !y_0_top, x, y, 1.0, 1.0); glFlush(); } -- 2.9.3