X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;f=src%2Fgallium%2Fstate_trackers%2Fwgl%2Fstw_framebuffer.c;h=259b22f22c73a1a13ab435fd31cd45428ede5f12;hb=db1689c23629d2cf66a7a35ed0e899006ef2af52;hp=4f1629de2f2c16ec55ee630bab48ccd4d384b83a;hpb=4fb2daf42c8171579cdc18605c5ceeb1963f8b31;p=mesa.git

diff --git a/src/gallium/state_trackers/wgl/stw_framebuffer.c b/src/gallium/state_trackers/wgl/stw_framebuffer.c
index 4f1629de2f2..259b22f22c7 100644
--- a/src/gallium/state_trackers/wgl/stw_framebuffer.c
+++ b/src/gallium/state_trackers/wgl/stw_framebuffer.c
@@ -27,18 +27,19 @@
 
 #include <windows.h>
 
-#include "main/context.h"
 #include "pipe/p_format.h"
 #include "pipe/p_screen.h"
 #include "util/u_format.h"
-#include "state_tracker/st_context.h"
-#include "state_tracker/st_public.h"
+#include "util/u_memory.h"
+#include "state_tracker/st_api.h"
 
 #include "stw_icd.h"
 #include "stw_framebuffer.h"
 #include "stw_device.h"
 #include "stw_winsys.h"
 #include "stw_tls.h"
+#include "stw_context.h"
+#include "stw_st.h"
 
 
 /**
@@ -63,8 +64,8 @@ stw_framebuffer_from_hwnd_locked(
 
 /**
  * Destroy this framebuffer. Both stw_dev::fb_mutex and stw_framebuffer::mutex
- * must be held, by this order. Obviously no further access to fb can be done 
- * after this.
+ * must be held, by this order.  If there are still references to the
+ * framebuffer, nothing will happen.
  */
 static INLINE void
 stw_framebuffer_destroy_locked(
@@ -72,6 +73,13 @@ stw_framebuffer_destroy_locked(
 {
    struct stw_framebuffer **link;
 
+   /* check the reference count */
+   fb->refcnt--;
+   if (fb->refcnt) {
+      pipe_mutex_unlock( fb->mutex );
+      return;
+   }
+
    link = &stw_dev->fb_head;
    while (*link != fb)
       link = &(*link)->next;
@@ -82,7 +90,7 @@ stw_framebuffer_destroy_locked(
    if(fb->shared_surface)
       stw_dev->stw_winsys->shared_surface_close(stw_dev->screen, fb->shared_surface);
 
-   st_unreference_framebuffer(fb->stfb);
+   stw_st_destroy_framebuffer_locked(fb->stfb);
    
    pipe_mutex_unlock( fb->mutex );
 
@@ -230,9 +238,14 @@ stw_framebuffer_create(
    fb->iPixelFormat = iPixelFormat;
 
    fb->pfi = pfi = stw_pixelformat_get_info( iPixelFormat - 1 );
+   fb->stfb = stw_st_create_framebuffer( fb );
+   if (!fb->stfb) {
+      FREE( fb );
+      return NULL;
+   }
+
+   fb->refcnt = 1;
 
-   stw_pixelformat_visual(&fb->visual, pfi);
-   
    stw_framebuffer_get_size(fb);
 
    pipe_mutex_init( fb->mutex );
@@ -251,47 +264,31 @@ stw_framebuffer_create(
    return fb;
 }
 
-
-BOOL
-stw_framebuffer_allocate(
+/**
+ * Have ptr reference fb.  The referenced framebuffer should be locked.
+ */
+void
+stw_framebuffer_reference(
+   struct stw_framebuffer **ptr,
    struct stw_framebuffer *fb)
 {
-   assert(fb);
-   
-   if(!fb->stfb) {
-      const struct stw_pixelformat_info *pfi = fb->pfi;
-      enum pipe_format colorFormat, depthFormat, stencilFormat;
+   struct stw_framebuffer *old_fb = *ptr;
 
-      colorFormat = pfi->color_format;
+   if (old_fb == fb)
+      return;
 
-      if(util_format_get_component_bits(pfi->depth_stencil_format, UTIL_FORMAT_COLORSPACE_ZS, 0))
-         depthFormat = pfi->depth_stencil_format;
-      else
-         depthFormat = PIPE_FORMAT_NONE;
-   
-      if(util_format_get_component_bits(pfi->depth_stencil_format, UTIL_FORMAT_COLORSPACE_ZS, 1))
-         stencilFormat = pfi->depth_stencil_format;
-      else
-         stencilFormat = PIPE_FORMAT_NONE;
-   
-      assert(fb->must_resize);
-      assert(fb->width);
-      assert(fb->height);
-
-      fb->stfb = st_create_framebuffer(
-         &fb->visual,
-         colorFormat,
-         depthFormat,
-         stencilFormat,
-         fb->width,
-         fb->height,
-         (void *) fb );
-      
-      // to notify the context
-      fb->must_resize = TRUE;
+   if (fb)
+      fb->refcnt++;
+   if (old_fb) {
+      pipe_mutex_lock(stw_dev->fb_mutex);
+
+      pipe_mutex_lock(old_fb->mutex);
+      stw_framebuffer_destroy_locked(old_fb);
+
+      pipe_mutex_unlock(stw_dev->fb_mutex);
    }
-   
-   return fb->stfb ? TRUE : FALSE;
+
+   *ptr = fb;
 }
 
 
@@ -313,11 +310,6 @@ stw_framebuffer_update(
     * to know of their existing without using the not very portable PSAPI.
     */
    stw_framebuffer_get_size(fb);
-   
-   if(fb->must_resize) {
-      st_resize_framebuffer(fb->stfb, fb->width, fb->height);
-      fb->must_resize = FALSE;
-   }
 }                      
 
 
@@ -516,6 +508,7 @@ DrvPresentBuffers(HDC hdc, PGLPRESENTBUFFERSDATA data)
    }
 
    stw_framebuffer_update(fb);
+   stw_notify_current_locked(fb);
 
    stw_framebuffer_release(fb);
 
@@ -544,6 +537,7 @@ stw_framebuffer_present_locked(HDC hdc,
       data.rect = fb->client_rect;
       data.pPrivateData = (void *)surface;
 
+      stw_notify_current_locked(fb);
       stw_framebuffer_release(fb);
 
       return stw_dev->callbacks.wglCbPresentBuffers(hdc, &data);
@@ -554,7 +548,7 @@ stw_framebuffer_present_locked(HDC hdc,
       stw_dev->stw_winsys->present( screen, surface, hdc );
 
       stw_framebuffer_update(fb);
-
+      stw_notify_current_locked(fb);
       stw_framebuffer_release(fb);
 
       return TRUE;
@@ -567,7 +561,6 @@ DrvSwapBuffers(
    HDC hdc )
 {
    struct stw_framebuffer *fb;
-   struct pipe_surface *surface = NULL;
 
    if (!stw_dev)
       return FALSE;
@@ -581,9 +574,9 @@ DrvSwapBuffers(
       return TRUE;
    }
 
-   st_swapbuffers(fb->stfb, &surface, NULL);
+   stw_flush_current_locked(fb);
 
-   return stw_framebuffer_present_locked(hdc, fb, surface);
+   return stw_st_swap_framebuffer_locked(fb->stfb);
 }