Fix/improve framebuffer object reference counting.
Use _mesa_reference_framebuffer() and _mesa_unreference_framebuffer() functions
to be sure reference counting is done correctly. Additional assertions are
done too. Note _mesa_dereference_framebuffer() renamed to "unreference" as
that's more accurate.
diff --git a/src/mesa/drivers/allegro/amesa.c b/src/mesa/drivers/allegro/amesa.c
index 594668a..518211c 100644
--- a/src/mesa/drivers/allegro/amesa.c
+++ b/src/mesa/drivers/allegro/amesa.c
@@ -338,7 +338,7 @@
{
if (buffer->Screen) destroy_bitmap(buffer->Screen);
if (buffer->Background) destroy_bitmap(buffer->Background);
- _mesa_destroy_framebuffer(buffer->GLBuffer);
+ _mesa_unreference_framebuffer(&buffer->GLBuffer);
free(buffer);
}
diff --git a/src/mesa/drivers/dri/fb/fb_dri.c b/src/mesa/drivers/dri/fb/fb_dri.c
index 08b52b4..a6d7590 100644
--- a/src/mesa/drivers/dri/fb/fb_dri.c
+++ b/src/mesa/drivers/dri/fb/fb_dri.c
@@ -480,11 +480,7 @@
static void
fbDestroyBuffer(__DRIdrawablePrivate *driDrawPriv)
{
- struct gl_framebuffer *mesa_framebuffer = (struct gl_framebuffer *)driDrawPriv->driverPrivate;
-
- _mesa_free(mesa_framebuffer->Attachment[BUFFER_BACK_LEFT].Renderbuffer->Data);
- _mesa_destroy_framebuffer(mesa_framebuffer);
- driDrawPriv->driverPrivate = NULL;
+ _mesa_unreference_framebuffer((GLframebuffer **)(&(driDrawPriv->driverPrivate)));
}
diff --git a/src/mesa/drivers/dri/ffb/ffb_xmesa.c b/src/mesa/drivers/dri/ffb/ffb_xmesa.c
index 215aaf8..4c5323d 100644
--- a/src/mesa/drivers/dri/ffb/ffb_xmesa.c
+++ b/src/mesa/drivers/dri/ffb/ffb_xmesa.c
@@ -392,7 +392,7 @@
static void
ffbDestroyBuffer(__DRIdrawablePrivate *driDrawPriv)
{
- _mesa_destroy_framebuffer((GLframebuffer *) (driDrawPriv->driverPrivate));
+ _mesa_unreference_framebuffer((GLframebuffer **)(&(driDrawPriv->driverPrivate)));
}
diff --git a/src/mesa/drivers/dri/gamma/gamma_xmesa.c b/src/mesa/drivers/dri/gamma/gamma_xmesa.c
index e8922b15..f41682c 100644
--- a/src/mesa/drivers/dri/gamma/gamma_xmesa.c
+++ b/src/mesa/drivers/dri/gamma/gamma_xmesa.c
@@ -97,7 +97,7 @@
static void
gammaDestroyBuffer(__DRIdrawablePrivate *driDrawPriv)
{
- _mesa_destroy_framebuffer((GLframebuffer *) (driDrawPriv->driverPrivate));
+ _mesa_unreference_framebuffer((GLframebuffer **)(&(driDrawPriv->driverPrivate)));
}
static void
diff --git a/src/mesa/drivers/dri/i810/i810screen.c b/src/mesa/drivers/dri/i810/i810screen.c
index ebe2615..f64c10a 100644
--- a/src/mesa/drivers/dri/i810/i810screen.c
+++ b/src/mesa/drivers/dri/i810/i810screen.c
@@ -398,8 +398,7 @@
static void
i810DestroyBuffer(__DRIdrawablePrivate *driDrawPriv)
{
- /* _mesa_destroy_framebuffer((GLframebuffer *) (driDrawPriv->driverPrivate)); */
- _mesa_dereference_framebuffer((GLframebuffer **)(&(driDrawPriv->driverPrivate)));
+ _mesa_unreference_framebuffer((GLframebuffer **)(&(driDrawPriv->driverPrivate)));
}
diff --git a/src/mesa/drivers/dri/i915/intel_screen.c b/src/mesa/drivers/dri/i915/intel_screen.c
index 942e1e9..67e176a 100644
--- a/src/mesa/drivers/dri/i915/intel_screen.c
+++ b/src/mesa/drivers/dri/i915/intel_screen.c
@@ -449,8 +449,7 @@
static void intelDestroyBuffer(__DRIdrawablePrivate *driDrawPriv)
{
- /* _mesa_destroy_framebuffer((GLframebuffer *) (driDrawPriv->driverPrivate)); */
- _mesa_dereference_framebuffer((GLframebuffer **)(&(driDrawPriv->driverPrivate)));
+ _mesa_unreference_framebuffer((GLframebuffer **)(&(driDrawPriv->driverPrivate)));
}
diff --git a/src/mesa/drivers/dri/i915tex/intel_screen.c b/src/mesa/drivers/dri/i915tex/intel_screen.c
index bc53890..ac83254 100644
--- a/src/mesa/drivers/dri/i915tex/intel_screen.c
+++ b/src/mesa/drivers/dri/i915tex/intel_screen.c
@@ -609,8 +609,7 @@
static void
intelDestroyBuffer(__DRIdrawablePrivate * driDrawPriv)
{
- /* _mesa_destroy_framebuffer((GLframebuffer *) (driDrawPriv->driverPrivate)); */
- _mesa_dereference_framebuffer((GLframebuffer **)(&(driDrawPriv->driverPrivate)));
+ _mesa_unreference_framebuffer((GLframebuffer **)(&(driDrawPriv->driverPrivate)));
}
diff --git a/src/mesa/drivers/dri/i965/intel_screen.c b/src/mesa/drivers/dri/i965/intel_screen.c
index 06e5d0c..5dac50d 100644
--- a/src/mesa/drivers/dri/i965/intel_screen.c
+++ b/src/mesa/drivers/dri/i965/intel_screen.c
@@ -457,8 +457,7 @@
static void intelDestroyBuffer(__DRIdrawablePrivate *driDrawPriv)
{
- /* _mesa_destroy_framebuffer((GLframebuffer *) (driDrawPriv->driverPrivate)); */
- _mesa_dereference_framebuffer((GLframebuffer **)(&(driDrawPriv->driverPrivate)));
+ _mesa_unreference_framebuffer((GLframebuffer **)(&(driDrawPriv->driverPrivate)));
}
diff --git a/src/mesa/drivers/dri/mach64/mach64_screen.c b/src/mesa/drivers/dri/mach64/mach64_screen.c
index 1014b8a..4e9e216 100644
--- a/src/mesa/drivers/dri/mach64/mach64_screen.c
+++ b/src/mesa/drivers/dri/mach64/mach64_screen.c
@@ -435,7 +435,7 @@
static void
mach64DestroyBuffer(__DRIdrawablePrivate *driDrawPriv)
{
- _mesa_destroy_framebuffer((GLframebuffer *) (driDrawPriv->driverPrivate));
+ _mesa_unreference_framebuffer((GLframebuffer **)(&(driDrawPriv->driverPrivate)));
}
diff --git a/src/mesa/drivers/dri/mga/mga_xmesa.c b/src/mesa/drivers/dri/mga/mga_xmesa.c
index f024f73..67a6f8b 100644
--- a/src/mesa/drivers/dri/mga/mga_xmesa.c
+++ b/src/mesa/drivers/dri/mga/mga_xmesa.c
@@ -831,7 +831,7 @@
static void
mgaDestroyBuffer(__DRIdrawablePrivate *driDrawPriv)
{
- _mesa_destroy_framebuffer((GLframebuffer *) (driDrawPriv->driverPrivate));
+ _mesa_unreference_framebuffer((GLframebuffer **)(&(driDrawPriv->driverPrivate)));
}
static void
diff --git a/src/mesa/drivers/dri/nouveau/nouveau_screen.c b/src/mesa/drivers/dri/nouveau/nouveau_screen.c
index 24e7775..e00080f 100644
--- a/src/mesa/drivers/dri/nouveau/nouveau_screen.c
+++ b/src/mesa/drivers/dri/nouveau/nouveau_screen.c
@@ -202,7 +202,7 @@
static void
nouveauDestroyBuffer(__DRIdrawablePrivate *driDrawPriv)
{
- _mesa_destroy_framebuffer((GLframebuffer *) (driDrawPriv->driverPrivate));
+ _mesa_unreference_framebuffer((GLframebuffer **)(&(driDrawPriv->driverPrivate)));
}
static int
diff --git a/src/mesa/drivers/dri/r128/r128_screen.c b/src/mesa/drivers/dri/r128/r128_screen.c
index 4f1b20a..880dee8 100644
--- a/src/mesa/drivers/dri/r128/r128_screen.c
+++ b/src/mesa/drivers/dri/r128/r128_screen.c
@@ -357,7 +357,7 @@
static void
r128DestroyBuffer(__DRIdrawablePrivate *driDrawPriv)
{
- _mesa_destroy_framebuffer((GLframebuffer *) (driDrawPriv->driverPrivate));
+ _mesa_unreference_framebuffer((GLframebuffer **)(&(driDrawPriv->driverPrivate)));
}
diff --git a/src/mesa/drivers/dri/radeon/radeon_screen.c b/src/mesa/drivers/dri/radeon/radeon_screen.c
index fc5aa11..abb14fa 100644
--- a/src/mesa/drivers/dri/radeon/radeon_screen.c
+++ b/src/mesa/drivers/dri/radeon/radeon_screen.c
@@ -901,7 +901,7 @@
static void
radeonDestroyBuffer(__DRIdrawablePrivate *driDrawPriv)
{
- _mesa_destroy_framebuffer((GLframebuffer *) (driDrawPriv->driverPrivate));
+ _mesa_unreference_framebuffer((GLframebuffer **)(&(driDrawPriv->driverPrivate)));
}
#if RADEON_COMMON && defined(RADEON_COMMON_FOR_R300)
diff --git a/src/mesa/drivers/dri/s3v/s3v_xmesa.c b/src/mesa/drivers/dri/s3v/s3v_xmesa.c
index c451f74..c66fd6d 100644
--- a/src/mesa/drivers/dri/s3v/s3v_xmesa.c
+++ b/src/mesa/drivers/dri/s3v/s3v_xmesa.c
@@ -131,7 +131,7 @@
static void
s3vDestroyBuffer(__DRIdrawablePrivate *driDrawPriv)
{
- _mesa_destroy_framebuffer((GLframebuffer *) (driDrawPriv->driverPrivate));
+ _mesa_unreference_framebuffer((GLframebuffer **)(&(driDrawPriv->driverPrivate)));
}
static void
diff --git a/src/mesa/drivers/dri/savage/savage_xmesa.c b/src/mesa/drivers/dri/savage/savage_xmesa.c
index ad79b92..f859217 100644
--- a/src/mesa/drivers/dri/savage/savage_xmesa.c
+++ b/src/mesa/drivers/dri/savage/savage_xmesa.c
@@ -710,7 +710,7 @@
static void
savageDestroyBuffer(__DRIdrawablePrivate *driDrawPriv)
{
- _mesa_destroy_framebuffer((GLframebuffer *) (driDrawPriv->driverPrivate));
+ _mesa_unreference_framebuffer((GLframebuffer **)(&(driDrawPriv->driverPrivate)));
}
#if 0
diff --git a/src/mesa/drivers/dri/sis/sis_screen.c b/src/mesa/drivers/dri/sis/sis_screen.c
index 8f52cfe..89d734b 100644
--- a/src/mesa/drivers/dri/sis/sis_screen.c
+++ b/src/mesa/drivers/dri/sis/sis_screen.c
@@ -233,7 +233,7 @@
static void
sisDestroyBuffer(__DRIdrawablePrivate *driDrawPriv)
{
- _mesa_destroy_framebuffer((GLframebuffer *) (driDrawPriv->driverPrivate));
+ _mesa_unreference_framebuffer((GLframebuffer **)(&(driDrawPriv->driverPrivate)));
}
static void sisCopyBuffer( __DRIdrawablePrivate *dPriv )
diff --git a/src/mesa/drivers/dri/tdfx/tdfx_screen.c b/src/mesa/drivers/dri/tdfx/tdfx_screen.c
index 646f512..1f9ff4e 100644
--- a/src/mesa/drivers/dri/tdfx/tdfx_screen.c
+++ b/src/mesa/drivers/dri/tdfx/tdfx_screen.c
@@ -233,7 +233,7 @@
static void
tdfxDestroyBuffer(__DRIdrawablePrivate *driDrawPriv)
{
- _mesa_destroy_framebuffer((GLframebuffer *) (driDrawPriv->driverPrivate));
+ _mesa_unreference_framebuffer((GLframebuffer **)(&(driDrawPriv->driverPrivate)));
}
diff --git a/src/mesa/drivers/dri/trident/trident_context.c b/src/mesa/drivers/dri/trident/trident_context.c
index dbbd1ac..8dc7f0d 100644
--- a/src/mesa/drivers/dri/trident/trident_context.c
+++ b/src/mesa/drivers/dri/trident/trident_context.c
@@ -279,7 +279,7 @@
static void
tridentDestroyBuffer(__DRIdrawablePrivate *driDrawPriv)
{
- _mesa_destroy_framebuffer((GLframebuffer *) (driDrawPriv->driverPrivate));
+ _mesa_unreference_framebuffer((GLframebuffer **)(&(driDrawPriv->driverPrivate)));
}
static void
diff --git a/src/mesa/drivers/dri/unichrome/via_screen.c b/src/mesa/drivers/dri/unichrome/via_screen.c
index 28e1f94..90f76be 100644
--- a/src/mesa/drivers/dri/unichrome/via_screen.c
+++ b/src/mesa/drivers/dri/unichrome/via_screen.c
@@ -320,7 +320,7 @@
static void
viaDestroyBuffer(__DRIdrawablePrivate *driDrawPriv)
{
- _mesa_destroy_framebuffer((GLframebuffer *)(driDrawPriv->driverPrivate));
+ _mesa_unreference_framebuffer((GLframebuffer **)(&(driDrawPriv->driverPrivate)));
}
diff --git a/src/mesa/drivers/glide/fxapi.c b/src/mesa/drivers/glide/fxapi.c
index e535e73..00b9d29 100644
--- a/src/mesa/drivers/glide/fxapi.c
+++ b/src/mesa/drivers/glide/fxapi.c
@@ -728,7 +728,7 @@
FREE(fxMesa->fogTable);
}
if (fxMesa->glBuffer) {
- _mesa_destroy_framebuffer(fxMesa->glBuffer);
+ _mesa_unreference_framebuffer(&fxMesa->glBuffer);
}
if (fxMesa->glVis) {
_mesa_destroy_visual(fxMesa->glVis);
@@ -828,7 +828,7 @@
fxDDDestroyFxMesaContext(fxMesa); /* must be before _mesa_destroy_context */
_mesa_destroy_visual(fxMesa->glVis);
_mesa_destroy_context(fxMesa->glCtx);
- _mesa_destroy_framebuffer(fxMesa->glBuffer);
+ _mesa_unreference_framebuffer(&fxMesa->glBuffer);
fxTMClose(fxMesa); /* must be after _mesa_destroy_context */
FREE(fxMesa);
diff --git a/src/mesa/drivers/osmesa/osmesa.c b/src/mesa/drivers/osmesa/osmesa.c
index c4fc882..96b9b5c 100644
--- a/src/mesa/drivers/osmesa/osmesa.c
+++ b/src/mesa/drivers/osmesa/osmesa.c
@@ -1303,7 +1303,8 @@
_swrast_DestroyContext( &osmesa->mesa );
_mesa_destroy_visual( osmesa->gl_visual );
- _mesa_destroy_framebuffer( osmesa->gl_buffer );
+ _mesa_unreference_framebuffer( &osmesa->gl_buffer );
+
_mesa_free_context_data( &osmesa->mesa );
_mesa_free( osmesa );
}
diff --git a/src/mesa/drivers/svga/svgamesa.c b/src/mesa/drivers/svga/svgamesa.c
index 0dd9a14..d138587 100644
--- a/src/mesa/drivers/svga/svgamesa.c
+++ b/src/mesa/drivers/svga/svgamesa.c
@@ -433,7 +433,6 @@
if (ctx) {
_mesa_destroy_visual( ctx->gl_vis );
_mesa_destroy_context( ctx->gl_ctx );
- _mesa_destroy_framebuffer( ctx->gl_buffer );
free( ctx );
if (ctx==SVGAMesa) {
SVGAMesa = NULL;
diff --git a/src/mesa/drivers/x11/xm_api.c b/src/mesa/drivers/x11/xm_api.c
index 2cd7d8a..a42de72 100644
--- a/src/mesa/drivers/x11/xm_api.c
+++ b/src/mesa/drivers/x11/xm_api.c
@@ -485,8 +485,8 @@
/* mark as delete pending */
fb->DeletePending = GL_TRUE;
- /* Dereference. If count = zero we'll really delete the buffer */
- _mesa_dereference_framebuffer(&fb);
+ /* Unreference. If count = zero we'll really delete the buffer */
+ _mesa_unreference_framebuffer(&fb);
return;
}
diff --git a/src/mesa/main/context.c b/src/mesa/main/context.c
index 1245c10..135c814 100644
--- a/src/mesa/main/context.c
+++ b/src/mesa/main/context.c
@@ -1408,6 +1408,13 @@
if (ctx == _mesa_get_current_context()) {
_mesa_make_current(NULL, NULL, NULL);
}
+ else {
+ /* unreference WinSysDraw/Read buffers */
+ _mesa_unreference_framebuffer(&ctx->WinSysDrawBuffer);
+ _mesa_unreference_framebuffer(&ctx->WinSysReadBuffer);
+ _mesa_unreference_framebuffer(&ctx->DrawBuffer);
+ _mesa_unreference_framebuffer(&ctx->ReadBuffer);
+ }
_mesa_free_lighting_data( ctx );
_mesa_free_eval_data( ctx );
@@ -1694,12 +1701,8 @@
ASSERT(_mesa_get_current_context() == newCtx);
if (oldCtx) {
- if (oldCtx->WinSysDrawBuffer) {
- _mesa_dereference_framebuffer(&oldCtx->WinSysDrawBuffer);
- }
- if (oldCtx->WinSysReadBuffer) {
- _mesa_dereference_framebuffer(&oldCtx->WinSysReadBuffer);
- }
+ _mesa_unreference_framebuffer(&oldCtx->WinSysDrawBuffer);
+ _mesa_unreference_framebuffer(&oldCtx->WinSysReadBuffer);
}
if (!newCtx) {
@@ -1713,20 +1716,18 @@
ASSERT(drawBuffer->Name == 0);
ASSERT(readBuffer->Name == 0);
- newCtx->WinSysDrawBuffer = drawBuffer;
- newCtx->WinSysReadBuffer = readBuffer;
- drawBuffer->RefCount++;
- readBuffer->RefCount++;
+ _mesa_reference_framebuffer(&newCtx->WinSysDrawBuffer, drawBuffer);
+ _mesa_reference_framebuffer(&newCtx->WinSysReadBuffer, readBuffer);
/*
* Only set the context's Draw/ReadBuffer fields if they're NULL
* or not bound to a user-created FBO.
*/
if (!newCtx->DrawBuffer || newCtx->DrawBuffer->Name == 0) {
- newCtx->DrawBuffer = drawBuffer;
+ _mesa_reference_framebuffer(&newCtx->DrawBuffer, drawBuffer);
}
if (!newCtx->ReadBuffer || newCtx->ReadBuffer->Name == 0) {
- newCtx->ReadBuffer = readBuffer;
+ _mesa_reference_framebuffer(&newCtx->ReadBuffer, readBuffer);
}
newCtx->NewState |= _NEW_BUFFERS;
diff --git a/src/mesa/main/fbobject.c b/src/mesa/main/fbobject.c
index a99ff9d..6608eef 100644
--- a/src/mesa/main/fbobject.c
+++ b/src/mesa/main/fbobject.c
@@ -602,7 +602,7 @@
oldRb = ctx->CurrentRenderbuffer;
if (oldRb) {
- _mesa_dereference_renderbuffer(&oldRb);
+ _mesa_unreference_renderbuffer(&oldRb);
}
ASSERT(newRb != &DummyRenderbuffer);
@@ -639,7 +639,7 @@
/* But the object will not be freed until it's no longer
* bound in any context.
*/
- _mesa_dereference_renderbuffer(&rb);
+ _mesa_unreference_renderbuffer(&rb);
}
}
}
@@ -998,12 +998,6 @@
}
_mesa_HashInsert(ctx->Shared->FrameBuffers, framebuffer, newFb);
}
- _glthread_LOCK_MUTEX(newFb->Mutex);
- if (bindReadBuf)
- newFb->RefCount++;
- if (bindDrawBuf)
- newFb->RefCount++;
- _glthread_UNLOCK_MUTEX(newFb->Mutex);
}
else {
/* Binding the window system framebuffer (which was originally set
@@ -1020,22 +1014,16 @@
*/
if (bindReadBuf) {
- struct gl_framebuffer *oldFb = ctx->ReadBuffer;
- if (oldFb && oldFb->Name != 0) {
- _mesa_dereference_framebuffer(&oldFb);
- }
- ctx->ReadBuffer = newFb;
+ _mesa_unreference_framebuffer(&ctx->ReadBuffer);
+ _mesa_reference_framebuffer(&ctx->ReadBuffer, newFb);
}
if (bindDrawBuf) {
- struct gl_framebuffer *oldFb = ctx->DrawBuffer;
- if (oldFb && oldFb->Name != 0) {
- /* check if old FB had any texture attachments */
- check_end_texture_render(ctx, oldFb);
- /* check if time to delete this framebuffer */
- _mesa_dereference_framebuffer(&oldFb);
- }
- ctx->DrawBuffer = newFb;
+ /* check if old FB had any texture attachments */
+ check_end_texture_render(ctx, ctx->DrawBuffer);
+ /* check if time to delete this framebuffer */
+ _mesa_unreference_framebuffer(&ctx->DrawBuffer);
+ _mesa_reference_framebuffer(&ctx->DrawBuffer, newFb);
if (newFb->Name != 0) {
/* check if newly bound framebuffer has any texture attachments */
check_begin_texture_render(ctx, newFb);
@@ -1083,7 +1071,7 @@
/* But the object will not be freed until it's no longer
* bound in any context.
*/
- _mesa_dereference_framebuffer(&fb);
+ _mesa_unreference_framebuffer(&fb);
}
}
}
diff --git a/src/mesa/main/framebuffer.c b/src/mesa/main/framebuffer.c
index dabc96d..c97d2f0 100644
--- a/src/mesa/main/framebuffer.c
+++ b/src/mesa/main/framebuffer.c
@@ -78,7 +78,7 @@
struct gl_renderbuffer *rb)
{
if (fb->_DepthBuffer) {
- _mesa_dereference_renderbuffer(&fb->_DepthBuffer);
+ _mesa_unreference_renderbuffer(&fb->_DepthBuffer);
}
fb->_DepthBuffer = rb;
if (rb) {
@@ -96,7 +96,7 @@
struct gl_renderbuffer *rb)
{
if (fb->_StencilBuffer) {
- _mesa_dereference_renderbuffer(&fb->_StencilBuffer);
+ _mesa_unreference_renderbuffer(&fb->_StencilBuffer);
}
fb->_StencilBuffer = rb;
if (rb) {
@@ -223,7 +223,7 @@
for (i = 0; i < BUFFER_COUNT; i++) {
struct gl_renderbuffer_attachment *att = &fb->Attachment[i];
if (att->Renderbuffer) {
- _mesa_dereference_renderbuffer(&att->Renderbuffer);
+ _mesa_unreference_renderbuffer(&att->Renderbuffer);
}
if (att->Texture) {
/* render to texture */
@@ -236,7 +236,6 @@
}
}
att->Type = GL_NONE;
- att->Renderbuffer = NULL;
att->Texture = NULL;
}
@@ -247,25 +246,44 @@
/**
- * Decrement the reference count on a framebuffer and delete it when
- * the refcount hits zero.
- * Note: we pass the address of a pointer and set it to NULL if we delete it.
+ * Set *ptr to point to fb, with refcounting and locking.
*/
void
-_mesa_dereference_framebuffer(struct gl_framebuffer **fb)
+_mesa_reference_framebuffer(struct gl_framebuffer **ptr,
+ struct gl_framebuffer *fb)
{
- GLboolean deleteFlag = GL_FALSE;
+ assert(ptr);
+ assert(!*ptr);
+ assert(fb);
+ _glthread_LOCK_MUTEX(fb->Mutex);
+ fb->RefCount++;
+ _glthread_UNLOCK_MUTEX(fb->Mutex);
+ *ptr = fb;
+}
- _glthread_LOCK_MUTEX((*fb)->Mutex);
- {
+
+/**
+ * Undo/remove a reference to a framebuffer object.
+ * Decrement the framebuffer object's reference count and delete it when
+ * the refcount hits zero.
+ * Note: we pass the address of a pointer and set it to NULL.
+ */
+void
+_mesa_unreference_framebuffer(struct gl_framebuffer **fb)
+{
+ assert(fb);
+ if (*fb) {
+ GLboolean deleteFlag = GL_FALSE;
+
+ _glthread_LOCK_MUTEX((*fb)->Mutex);
ASSERT((*fb)->RefCount > 0);
(*fb)->RefCount--;
deleteFlag = ((*fb)->RefCount == 0);
- }
- _glthread_UNLOCK_MUTEX((*fb)->Mutex);
+ _glthread_UNLOCK_MUTEX((*fb)->Mutex);
+
+ if (deleteFlag)
+ (*fb)->Delete(*fb);
- if (deleteFlag) {
- (*fb)->Delete(*fb);
*fb = NULL;
}
}
diff --git a/src/mesa/main/framebuffer.h b/src/mesa/main/framebuffer.h
index 7f3254f..4d76f3a 100644
--- a/src/mesa/main/framebuffer.h
+++ b/src/mesa/main/framebuffer.h
@@ -43,7 +43,11 @@
_mesa_free_framebuffer_data(struct gl_framebuffer *buffer);
extern void
-_mesa_dereference_framebuffer(struct gl_framebuffer **fb);
+_mesa_reference_framebuffer(struct gl_framebuffer **ptr,
+ struct gl_framebuffer *fb);
+
+extern void
+_mesa_unreference_framebuffer(struct gl_framebuffer **fb);
extern void
_mesa_resize_framebuffer(GLcontext *ctx, struct gl_framebuffer *fb,
diff --git a/src/mesa/main/rbadaptors.c b/src/mesa/main/rbadaptors.c
index 313c8d4..60f4948 100644
--- a/src/mesa/main/rbadaptors.c
+++ b/src/mesa/main/rbadaptors.c
@@ -1,8 +1,8 @@
/*
* Mesa 3-D graphics library
- * Version: 6.5.1
+ * Version: 6.5.3
*
- * Copyright (C) 1999-2006 Brian Paul All Rights Reserved.
+ * Copyright (C) 1999-2007 Brian Paul All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
@@ -45,7 +45,7 @@
/* Decrement reference count on the buffer we're wrapping and delete
* it if refcount hits zero.
*/
- _mesa_dereference_renderbuffer(&rb->Wrapped);
+ _mesa_unreference_renderbuffer(&rb->Wrapped);
/* delete myself */
_mesa_delete_renderbuffer(rb);
diff --git a/src/mesa/main/renderbuffer.c b/src/mesa/main/renderbuffer.c
index 6b18d60..1cc95a7 100644
--- a/src/mesa/main/renderbuffer.c
+++ b/src/mesa/main/renderbuffer.c
@@ -2089,32 +2089,33 @@
if (!rb)
return;
- _mesa_dereference_renderbuffer(&rb);
+ _mesa_unreference_renderbuffer(&rb);
fb->Attachment[bufferName].Renderbuffer = NULL;
}
/**
- * Decrement the reference count on a renderbuffer and delete it when
+ * Decrement a renderbuffer object's reference count and delete it when
* the refcount hits zero.
- * Note: we pass the address of a pointer and set it to NULL if we delete it.
+ * Note: we pass the address of a pointer.
*/
void
-_mesa_dereference_renderbuffer(struct gl_renderbuffer **rb)
+_mesa_unreference_renderbuffer(struct gl_renderbuffer **rb)
{
- GLboolean deleteFlag = GL_FALSE;
+ assert(rb);
+ if (*rb) {
+ GLboolean deleteFlag = GL_FALSE;
- _glthread_LOCK_MUTEX((*rb)->Mutex);
- {
+ _glthread_LOCK_MUTEX((*rb)->Mutex);
ASSERT((*rb)->RefCount > 0);
(*rb)->RefCount--;
deleteFlag = ((*rb)->RefCount == 0);
- }
- _glthread_UNLOCK_MUTEX((*rb)->Mutex);
+ _glthread_UNLOCK_MUTEX((*rb)->Mutex);
- if (deleteFlag) {
- (*rb)->Delete(*rb);
+ if (deleteFlag)
+ (*rb)->Delete(*rb);
+
*rb = NULL;
}
}
diff --git a/src/mesa/main/renderbuffer.h b/src/mesa/main/renderbuffer.h
index 74ca43c..e1a0a55 100644
--- a/src/mesa/main/renderbuffer.h
+++ b/src/mesa/main/renderbuffer.h
@@ -99,7 +99,7 @@
_mesa_remove_renderbuffer(struct gl_framebuffer *fb, GLuint bufferName);
extern void
-_mesa_dereference_renderbuffer(struct gl_renderbuffer **rb);
+_mesa_unreference_renderbuffer(struct gl_renderbuffer **rb);
extern struct gl_renderbuffer *
_mesa_new_depthstencil_renderbuffer(GLcontext *ctx, GLuint name);