Mesa (master): st/egl: Add support for EGL_NV_post_sub_buffer
Chia-I Wu
olv at kemper.freedesktop.org
Tue Dec 20 09:27:12 UTC 2011
Module: Mesa
Branch: master
Commit: 75772842133d101223ca31400e100b83476f327b
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=75772842133d101223ca31400e100b83476f327b
Author: Fredrik Höglund <fredrik at kde.org>
Date: Wed Dec 14 21:24:11 2011 +0100
st/egl: Add support for EGL_NV_post_sub_buffer
Signed-off-by: Fredrik Höglund <fredrik at kde.org>
[olv: remove #ifdef checks]
---
src/gallium/state_trackers/egl/common/egl_g3d.c | 6 ++++--
.../state_trackers/egl/common/egl_g3d_api.c | 20 ++++++++++++++++++++
2 files changed, 24 insertions(+), 2 deletions(-)
diff --git a/src/gallium/state_trackers/egl/common/egl_g3d.c b/src/gallium/state_trackers/egl/common/egl_g3d.c
index 53811b8..d147ad0 100644
--- a/src/gallium/state_trackers/egl/common/egl_g3d.c
+++ b/src/gallium/state_trackers/egl/common/egl_g3d.c
@@ -606,11 +606,13 @@ egl_g3d_initialize(_EGLDriver *drv, _EGLDisplay *dpy)
dpy->Extensions.WL_bind_wayland_display = EGL_TRUE;
#endif
-#ifdef EGL_NOK_swap_region
if (gdpy->native->get_param(gdpy->native, NATIVE_PARAM_PRESENT_REGION) &&
- gdpy->native->get_param(gdpy->native, NATIVE_PARAM_PRESERVE_BUFFER))
+ gdpy->native->get_param(gdpy->native, NATIVE_PARAM_PRESERVE_BUFFER)) {
+#ifdef EGL_NOK_swap_region
dpy->Extensions.NOK_swap_region = EGL_TRUE;
#endif
+ dpy->Extensions.NV_post_sub_buffer = EGL_TRUE;
+ }
if (egl_g3d_add_configs(drv, dpy, 1) == 1) {
_eglError(EGL_NOT_INITIALIZED, "eglInitialize(unable to add configs)");
diff --git a/src/gallium/state_trackers/egl/common/egl_g3d_api.c b/src/gallium/state_trackers/egl/common/egl_g3d_api.c
index ed424f9..606e760 100644
--- a/src/gallium/state_trackers/egl/common/egl_g3d_api.c
+++ b/src/gallium/state_trackers/egl/common/egl_g3d_api.c
@@ -296,6 +296,14 @@ egl_g3d_create_surface(_EGLDriver *drv, _EGLDisplay *dpy, _EGLConfig *conf,
gconf->stvis.buffer_mask & ST_ATTACHMENT_FRONT_LEFT_MASK)
gsurf->stvis.render_buffer = ST_ATTACHMENT_FRONT_LEFT;
+ if (dpy->Extensions.NV_post_sub_buffer) {
+ if (gsurf->base.Type == EGL_WINDOW_BIT &&
+ gsurf->base.RenderBuffer == EGL_BACK_BUFFER)
+ gsurf->base.PostSubBufferSupportedNV = EGL_TRUE;
+ else
+ gsurf->base.PostSubBufferSupportedNV = EGL_FALSE;
+ }
+
gsurf->stfbi = egl_g3d_create_st_framebuffer(&gsurf->base);
if (!gsurf->stfbi) {
nsurf->destroy(nsurf);
@@ -602,6 +610,16 @@ egl_g3d_swap_buffers_region(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf
#endif /* EGL_NOK_swap_region */
static EGLBoolean
+egl_g3d_post_sub_buffer(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
+ EGLint x, EGLint y, EGLint width, EGLint height)
+{
+ /* Note: y=0=bottom */
+ const EGLint rect[4] = { x, surf->Height - y - height, width, height };
+
+ return swap_buffers(drv, dpy, surf, 1, rect, EGL_TRUE);
+}
+
+static EGLBoolean
egl_g3d_copy_buffers(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
EGLNativePixmapType target)
{
@@ -891,4 +909,6 @@ egl_g3d_init_driver_api(_EGLDriver *drv)
#ifdef EGL_NOK_swap_region
drv->API.SwapBuffersRegionNOK = egl_g3d_swap_buffers_region;
#endif
+
+ drv->API.PostSubBufferNV = egl_g3d_post_sub_buffer;
}
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