st/xlib: add HUD support for xlib/GLX

For the softpipe and llvmpipe drivers.

Reviewed-by: Jose Fonseca <jfonseca@vmware.com>

diff --git a/src/gallium/state_trackers/glx/xlib/xm_api.c b/src/gallium/state_trackers/glx/xlib/xm_api.c
index 021175c70c48d1df7db0a57249594a0954c671b1..04960f30ef50b485a366dee3598db8f26b8406bc 100644 (file)
--- a/src/gallium/state_trackers/glx/xlib/xm_api.c
+++ b/src/gallium/state_trackers/glx/xlib/xm_api.c
@@ -64,6 +64,8 @@
 #include "util/u_atomic.h"
 #include "util/u_inlines.h"
 
+#include "hud/hud_context.h"
+
 #include "xm_public.h"
 #include <GL/glx.h>
 
@@ -910,6 +912,8 @@ XMesaContext XMesaCreateContext( XMesaVisual v, XMesaContext share_list,
 
    c->st->st_manager_private = (void *) c;
 
+   c->hud = hud_create(c->st->pipe, c->st->cso_context);
+
    return c;
 
 fail:
@@ -925,6 +929,10 @@ fail:
 PUBLIC
 void XMesaDestroyContext( XMesaContext c )
 {
+   if (c->hud) {
+      hud_destroy(c->hud);
+   }
+
    c->st->destroy(c->st);
 
    /* FIXME: We should destroy the screen here, but if we do so, surfaces may 
@@ -1224,6 +1232,13 @@ void XMesaSwapBuffers( XMesaBuffer b )
 {
    XMesaContext xmctx = XMesaGetCurrentContext();
 
+   /* Need to draw HUD before flushing */
+   if (xmctx && xmctx->hud) {
+      struct pipe_resource *back =
+         xmesa_get_framebuffer_resource(b->stfb, ST_ATTACHMENT_BACK_LEFT);
+      hud_draw(xmctx->hud, back);
+   }
+
    if (xmctx && xmctx->xm_buffer == b) {
       xmctx->st->flush( xmctx->st, ST_FLUSH_FRONT, NULL);
    }

diff --git a/src/gallium/state_trackers/glx/xlib/xm_api.h b/src/gallium/state_trackers/glx/xlib/xm_api.h
index 606bcf3dc81bf24313c32b930ab13ebe948584fd..6d37ed7cab90f74d007a73fe590ec801936861a4 100644 (file)
--- a/src/gallium/state_trackers/glx/xlib/xm_api.h
+++ b/src/gallium/state_trackers/glx/xlib/xm_api.h
@@ -67,6 +67,8 @@ and create a window, you must do the following to use the X/Mesa interface:
 # include <X11/Xlibint.h>
 # include <X11/Xutil.h>
 
+struct hud_context;
+
 typedef struct xmesa_display *XMesaDisplay;
 typedef struct xmesa_buffer *XMesaBuffer;
 typedef struct xmesa_context *XMesaContext;
@@ -305,6 +307,7 @@ struct xmesa_context {
    XMesaVisual xm_visual;      /** pixel format info */
    XMesaBuffer xm_buffer;      /** current drawbuffer */
    XMesaBuffer xm_read_buffer;  /** current readbuffer */
+   struct hud_context *hud;
 };
 
 

diff --git a/src/gallium/state_trackers/glx/xlib/xm_st.c b/src/gallium/state_trackers/glx/xlib/xm_st.c
index a681e82fe0131b3068e8bc066a360c64dc534ca9..1cfd89ee85fbf39e81336af51af12f94b330564a 100644 (file)
--- a/src/gallium/state_trackers/glx/xlib/xm_st.c
+++ b/src/gallium/state_trackers/glx/xlib/xm_st.c
@@ -317,6 +317,18 @@ xmesa_destroy_st_framebuffer(struct st_framebuffer_iface *stfbi)
    free(stfbi);
 }
 
+/**
+ * Return the pipe_surface which corresponds to the given
+ * framebuffer attachment.
+ */
+struct pipe_resource *
+xmesa_get_framebuffer_resource(struct st_framebuffer_iface *stfbi,
+                               enum st_attachment_type att)
+{
+   struct xmesa_st_framebuffer *xstfb = xmesa_st_framebuffer(stfbi);
+   return xstfb->textures[att];
+}
+
 void
 xmesa_swap_st_framebuffer(struct st_framebuffer_iface *stfbi)
 {

diff --git a/src/gallium/state_trackers/glx/xlib/xm_st.h b/src/gallium/state_trackers/glx/xlib/xm_st.h
index a293728123782c2e1d64d9ffe17a3f9403046c9f..c939c1ee73c0f6123012786fba700ab39a70164d 100644 (file)
--- a/src/gallium/state_trackers/glx/xlib/xm_st.h
+++ b/src/gallium/state_trackers/glx/xlib/xm_st.h
@@ -40,6 +40,10 @@ xmesa_create_st_framebuffer(XMesaDisplay xmdpy, XMesaBuffer b);
 void
 xmesa_destroy_st_framebuffer(struct st_framebuffer_iface *stfbi);
 
+struct pipe_resource *
+xmesa_get_framebuffer_resource(struct st_framebuffer_iface *stfbi,
+                               enum st_attachment_type att);
+
 void
 xmesa_swap_st_framebuffer(struct st_framebuffer_iface *stfbi);