texenvprogram: fix for ARB_draw_buffers.

[mesa.git] / src / gallium / winsys / xlib / xlib_softpipe.c

diff --git a/src/gallium/winsys/xlib/xlib_softpipe.c b/src/gallium/winsys/xlib/xlib_softpipe.c
index 260b39e2a0fb1dd93922baa8175590ff8b2a21bd..716338aef47f76b943a946b603cd6649f6fa26ad 100644 (file)
--- a/src/gallium/winsys/xlib/xlib_softpipe.c
+++ b/src/gallium/winsys/xlib/xlib_softpipe.c
@@ -38,10 +38,11 @@
 #undef ASSERT
 #undef Elements
 
-#include "pipe/internal/p_winsys_screen.h"
+#include "util/u_simple_screen.h"
 #include "pipe/p_format.h"
 #include "pipe/p_context.h"
-#include "pipe/p_inlines.h"
+#include "util/u_inlines.h"
+#include "util/u_format.h"
 #include "util/u_math.h"
 #include "util/u_memory.h"
 #include "softpipe/sp_winsys.h"
@@ -62,7 +63,7 @@ struct xm_buffer
 
    XImage *tempImage;
 #ifdef USE_XSHM
-   int shm;
+   boolean shm;         /** Is this a shared memory buffer? */
    XShmSegmentInfo shminfo;
 #endif
 };
@@ -151,7 +152,7 @@ alloc_shm_ximage(struct xm_buffer *b, struct xmesa_buffer *xmb,
                                   &b->shminfo,
                                   width, height);
    if (b->tempImage == NULL) {
-      b->shm = 0;
+      b->shm = FALSE;
       return;
    }
 
@@ -168,12 +169,12 @@ alloc_shm_ximage(struct xm_buffer *b, struct xmesa_buffer *xmb,
       mesaXErrorFlag = 0;
       XDestroyImage(b->tempImage);
       b->tempImage = NULL;
-      b->shm = 0;
+      b->shm = FALSE;
       (void) XSetErrorHandler(old_handler);
       return;
    }
 
-   b->shm = 1;
+   b->shm = TRUE;
 }
 
 #endif /* USE_XSHM */
@@ -203,6 +204,14 @@ xm_buffer_destroy(struct pipe_buffer *buf)
 {
    struct xm_buffer *oldBuf = xm_buffer(buf);
 
+   /*
+    * Note oldBuf->data may point to one of three things:
+    * 1. XShm shared memory image data
+    * 2. User-provided (wrapped) memory, see xm_user_buffer_create()
+    * 3. Regular, malloc'd memory
+    * We need to be careful with freeing that data now.
+    */
+
    if (oldBuf->data) {
 #ifdef USE_XSHM
       if (oldBuf->shminfo.shmid >= 0) {
@@ -212,12 +221,20 @@ xm_buffer_destroy(struct pipe_buffer *buf)
          oldBuf->shminfo.shmid = -1;
          oldBuf->shminfo.shmaddr = (char *) -1;
       }
-      else
+
+      if (oldBuf->shm) {
+         oldBuf->data = NULL;
+      }
+
+      if (oldBuf->tempImage) {
+         XDestroyImage(oldBuf->tempImage);
+         oldBuf->tempImage = NULL;
+      }
 #endif
-      {
-         if (!oldBuf->userBuffer) {
-            align_free(oldBuf->data);
-         }
+
+      if (oldBuf->data && !oldBuf->userBuffer) {
+         /* this was regular malloc'd memory */
+         align_free(oldBuf->data);
       }
 
       oldBuf->data = NULL;
@@ -254,10 +271,10 @@ xlib_softpipe_display_surface(struct xmesa_buffer *b,
    {
       if (xm_buf->tempImage == NULL) 
       {
-         assert(surf->texture->block.width == 1);
-         assert(surf->texture->block.height == 1);
+         assert(util_format_get_blockwidth(surf->texture->format) == 1);
+         assert(util_format_get_blockheight(surf->texture->format) == 1);
          alloc_shm_ximage(xm_buf, b, spt->stride[surf->level] /
-                          surf->texture->block.size, surf->height);
+                          util_format_get_blocksize(surf->texture->format), surf->height);
       }
 
       ximage = xm_buf->tempImage;
@@ -326,10 +343,8 @@ xm_buffer_create(struct pipe_winsys *pws,
    buffer->base.usage = usage;
    buffer->base.size = size;
 
-   if (buffer->data == NULL) {
-      /* align to 16-byte multiple for Cell */
-      buffer->data = align_malloc(size, max(alignment, 16));
-   }
+   /* align to 16-byte multiple for Cell */
+   buffer->data = align_malloc(size, max(alignment, 16));
 
    return &buffer->base;
 }
@@ -360,13 +375,10 @@ xm_surface_buffer_create(struct pipe_winsys *winsys,
                          unsigned *stride)
 {
    const unsigned alignment = 64;
-   struct pipe_format_block block;
-   unsigned nblocksx, nblocksy, size;
+   unsigned nblocksy, size;
 
-   pf_get_block(format, &block);
-   nblocksx = pf_get_nblocksx(&block, width);
-   nblocksy = pf_get_nblocksy(&block, height);
-   *stride = align(nblocksx * block.size, alignment);
+   nblocksy = util_format_get_nblocksy(format, height);
+   *stride = align(util_format_get_stride(format, width), alignment);
    size = *stride * nblocksy;
 
 #ifdef USE_XSHM
@@ -486,28 +498,9 @@ fail:
 }
 
 
-static struct pipe_context *
-xlib_create_softpipe_context( struct pipe_screen *screen,
-                              void *context_private )
-{
-   struct pipe_context *pipe;
-   
-   pipe = softpipe_create(screen);
-   if (pipe == NULL)
-      goto fail;
-
-   pipe->priv = context_private;
-   return pipe;
-
-fail:
-   /* Free stuff here */
-   return NULL;
-}
-
 struct xm_driver xlib_softpipe_driver = 
 {
    .create_pipe_screen = xlib_create_softpipe_screen,
-   .create_pipe_context = xlib_create_softpipe_context,
    .display_surface = xlib_softpipe_display_surface
 };