Mesa (master): egl_softpipe: Add support for pbuffer surface.
Brian Paul
brianp at kemper.freedesktop.org
Mon Aug 3 17:36:43 UTC 2009
Module: Mesa
Branch: master
Commit: 7420e33848bfe6d53ee28cc06e53856d542ae2c7
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=7420e33848bfe6d53ee28cc06e53856d542ae2c7
Author: Chia-I Wu <olvaffe at gmail.com>
Date: Mon Aug 3 11:36:08 2009 -0600
egl_softpipe: Add support for pbuffer surface.
Signed-off-by: Chia-I Wu <olvaffe at gmail.com>
---
src/gallium/winsys/egl_xlib/egl_xlib.c | 103 +++++++++++++++++++++++++++++--
1 files changed, 96 insertions(+), 7 deletions(-)
diff --git a/src/gallium/winsys/egl_xlib/egl_xlib.c b/src/gallium/winsys/egl_xlib/egl_xlib.c
index 1a1dad6..2acfbf8 100644
--- a/src/gallium/winsys/egl_xlib/egl_xlib.c
+++ b/src/gallium/winsys/egl_xlib/egl_xlib.c
@@ -82,6 +82,7 @@ struct xlib_egl_surface
{
_EGLSurface Base; /**< base class */
+ /* These are set for window surface */
Display *Dpy; /**< The X Display of the window */
Window Win; /**< The user-created window ID */
GC Gc;
@@ -101,7 +102,7 @@ xlib_egl_driver(_EGLDriver *drv)
}
-static struct xlib_egl_surface *
+static INLINE struct xlib_egl_surface *
lookup_surface(EGLSurface surf)
{
_EGLSurface *surface = _eglLookupSurface(surf);
@@ -109,10 +110,10 @@ lookup_surface(EGLSurface surf)
}
-static struct xlib_egl_context *
-lookup_context(EGLContext surf)
+static INLINE struct xlib_egl_context *
+lookup_context(EGLContext ctx)
{
- _EGLContext *context = _eglLookupContext(surf);
+ _EGLContext *context = _eglLookupContext(ctx);
return (struct xlib_egl_context *) context;
}
@@ -180,7 +181,7 @@ create_configs(_EGLDriver *drv, EGLDisplay dpy)
SET_CONFIG_ATTRIB(config, EGL_NATIVE_RENDERABLE, EGL_FALSE);
SET_CONFIG_ATTRIB(config, EGL_CONFORMANT, all_apis);
SET_CONFIG_ATTRIB(config, EGL_RENDERABLE_TYPE, all_apis);
- SET_CONFIG_ATTRIB(config, EGL_SURFACE_TYPE, EGL_WINDOW_BIT);
+ SET_CONFIG_ATTRIB(config, EGL_SURFACE_TYPE, EGL_WINDOW_BIT | EGL_PBUFFER_BIT);
_eglAddConfig(disp, config);
}
@@ -264,7 +265,13 @@ static void
check_and_update_buffer_size(struct xlib_egl_surface *surface)
{
uint width, height;
- get_drawable_size(surface->Dpy, surface->Win, &width, &height);
+ if (surface->Base.Type == EGL_PBUFFER_BIT) {
+ width = surface->Base.Width;
+ height = surface->Base.Height;
+ }
+ else {
+ get_drawable_size(surface->Dpy, surface->Win, &width, &height);
+ }
st_resize_framebuffer(surface->Framebuffer, width, height);
surface->Base.Width = width;
surface->Base.Height = height;
@@ -281,6 +288,9 @@ display_surface(struct pipe_winsys *pws,
XImage *ximage;
void *data;
+ if (xsurf->Base.Type == EGL_PBUFFER_BIT)
+ return;
+
ximage = XCreateImage(xsurf->Dpy,
xsurf->VisInfo.visual,
xsurf->VisInfo.depth,
@@ -527,6 +537,83 @@ xlib_eglCreateWindowSurface(_EGLDriver *drv, EGLDisplay dpy, EGLConfig config,
}
+static EGLSurface
+xlib_eglCreatePbufferSurface(_EGLDriver *drv, EGLDisplay dpy, EGLConfig config,
+ const EGLint *attrib_list)
+{
+ struct xlib_egl_driver *xdrv = xlib_egl_driver(drv);
+ _EGLDisplay *disp = _eglLookupDisplay(dpy);
+ _EGLConfig *conf = _eglLookupConfig(drv, dpy, config);
+ struct xlib_egl_surface *surf;
+ __GLcontextModes visual;
+ uint width, height;
+ EGLBoolean bind_texture;
+
+ if (!disp) {
+ _eglError(EGL_BAD_DISPLAY, "eglCreatePbufferSurface");
+ return EGL_NO_SURFACE;
+ }
+ if (!conf) {
+ _eglError(EGL_BAD_CONFIG, "eglCreatePbufferSurface");
+ return EGL_NO_SURFACE;
+ }
+
+ surf = CALLOC_STRUCT(xlib_egl_surface);
+ if (!surf) {
+ _eglError(EGL_BAD_ALLOC, "eglCreatePbufferSurface");
+ return EGL_NO_SURFACE;
+ }
+
+ if (!_eglInitSurface(drv, &surf->Base, EGL_PBUFFER_BIT,
+ conf, attrib_list)) {
+ free(surf);
+ return EGL_NO_SURFACE;
+ }
+ if (surf->Base.Width < 0 || surf->Base.Height < 0) {
+ _eglError(EGL_BAD_PARAMETER, "eglCreatePbufferSurface");
+ free(surf);
+ return EGL_NO_SURFACE;
+ }
+
+ bind_texture = (surf->Base.TextureFormat != EGL_NO_TEXTURE);
+ width = (uint) surf->Base.Width;
+ height = (uint) surf->Base.Height;
+ if ((surf->Base.TextureTarget == EGL_NO_TEXTURE && bind_texture) ||
+ (surf->Base.TextureTarget != EGL_NO_TEXTURE && !bind_texture)) {
+ _eglError(EGL_BAD_MATCH, "eglCreatePbufferSurface");
+ free(surf);
+ return EGL_NO_SURFACE;
+ }
+ /* a framebuffer of zero width or height confuses st */
+ if (width == 0 || height == 0) {
+ _eglError(EGL_BAD_MATCH, "eglCreatePbufferSurface");
+ free(surf);
+ return EGL_NO_SURFACE;
+ }
+ /* no mipmap generation */
+ if (surf->Base.MipmapTexture) {
+ _eglError(EGL_BAD_MATCH, "eglCreatePbufferSurface");
+ free(surf);
+ return EGL_NO_SURFACE;
+ }
+
+ surf->winsys = xdrv->winsys;
+
+ _eglConfigToContextModesRec(conf, &visual);
+
+ /* Create GL statetracker framebuffer */
+ surf->Framebuffer = st_create_framebuffer(&visual,
+ choose_color_format(&visual),
+ choose_depth_format(&visual),
+ choose_stencil_format(&visual),
+ width, height,
+ (void *) surf);
+ st_resize_framebuffer(surf->Framebuffer, width, height);
+
+ return _eglLinkSurface(&surf->Base, disp);
+}
+
+
static EGLBoolean
xlib_eglDestroySurface(_EGLDriver *drv, EGLDisplay dpy, EGLSurface surface)
{
@@ -534,7 +621,8 @@ xlib_eglDestroySurface(_EGLDriver *drv, EGLDisplay dpy, EGLSurface surface)
if (surf) {
_eglUnlinkSurface(&surf->Base);
if (!_eglIsSurfaceBound(&surf->Base)) {
- XFreeGC(surf->Dpy, surf->Gc);
+ if (surf->Base.Type != EGL_PBUFFER_BIT)
+ XFreeGC(surf->Dpy, surf->Gc);
st_unreference_framebuffer(surf->Framebuffer);
free(surf);
}
@@ -631,6 +719,7 @@ _eglMain(_EGLDisplay *dpy, const char *args)
xdrv->Base.API.CreateContext = xlib_eglCreateContext;
xdrv->Base.API.DestroyContext = xlib_eglDestroyContext;
xdrv->Base.API.CreateWindowSurface = xlib_eglCreateWindowSurface;
+ xdrv->Base.API.CreatePbufferSurface = xlib_eglCreatePbufferSurface;
xdrv->Base.API.DestroySurface = xlib_eglDestroySurface;
xdrv->Base.API.MakeCurrent = xlib_eglMakeCurrent;
xdrv->Base.API.SwapBuffers = xlib_eglSwapBuffers;
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