mesa: rename gl_renderbuffer::Data to Buffer

To better indicate that this pointer to the malloc'd memory.

src/mesa/drivers/dri/intel/intel_fbo.c

@@ -132,11 +132,11 @@ intel_map_renderbuffer(struct gl_context *ctx,
    void *map;
    int stride;
 
-   if (!irb && rb->Data) {
+   if (!irb && rb->Buffer) {
       /* this is a malloc'd renderbuffer (accum buffer) */
       GLint bpp = _mesa_get_format_bytes(rb->Format);
       GLint rowStride = rb->RowStrideBytes;
-      *out_map = (GLubyte *) rb->Data + y * rowStride + x * bpp;
+      *out_map = (GLubyte *) rb->Buffer + y * rowStride + x * bpp;
       *out_stride = rowStride;
       return;
    }
@@ -185,7 +185,7 @@ intel_unmap_renderbuffer(struct gl_context *ctx,
    DBG("%s: rb %d (%s)\n", __FUNCTION__,
        rb->Name, _mesa_get_format_name(rb->Format));
 
-   if (!irb && rb->Data) {
+   if (!irb && rb->Buffer) {
       /* this is a malloc'd renderbuffer (accum buffer) */
       /* nothing to do */
       return;

src/mesa/drivers/dri/swrast/swrast.c

@@ -265,7 +265,7 @@ swrast_delete_renderbuffer(struct gl_renderbuffer *rb)
 {
     TRACE;
 
-    free(rb->Data);
+    free(rb->Buffer);
     free(rb);
 }
 
@@ -289,7 +289,7 @@ swrast_alloc_front_storage(struct gl_context *ctx, struct gl_renderbuffer *rb,
     (void) ctx;
     (void) internalFormat;
 
-    rb->Data = NULL;
+    rb->Buffer = NULL;
     rb->Width = width;
     rb->Height = height;
     xrb->pitch = bytes_per_line(width * xrb->bpp, 32);
@@ -305,11 +305,11 @@ swrast_alloc_back_storage(struct gl_context *ctx, struct gl_renderbuffer *rb,
 
     TRACE;
 
-    free(rb->Data);
+    free(rb->Buffer);
 
     swrast_alloc_front_storage(ctx, rb, internalFormat, width, height);
 
-    rb->Data = malloc(height * xrb->pitch);
+    rb->Buffer = malloc(height * xrb->pitch);
 
     return GL_TRUE;
 }
@@ -380,7 +380,7 @@ swrast_map_renderbuffer(struct gl_context *ctx,
 			GLint *out_stride)
 {
    struct swrast_renderbuffer *xrb = swrast_renderbuffer(rb);
-   GLubyte *map = rb->Data;
+   GLubyte *map = rb->Buffer;
    int cpp = _mesa_get_format_bytes(rb->Format);
    int stride = rb->Width * cpp;
 
@@ -395,18 +395,18 @@ swrast_map_renderbuffer(struct gl_context *ctx,
       xrb->map_h = h;
 
       stride = w * cpp;
-      rb->Data = malloc(h * stride);
+      rb->Buffer = malloc(h * stride);
 
       sPriv->swrast_loader->getImage(dPriv, x, y, w, h,
-				     (char *)rb->Data,
+				     (char *)rb->Buffer,
 				     dPriv->loaderPrivate);
 
-      *out_map = rb->Data;
+      *out_map = rb->Buffer;
       *out_stride = stride;
       return;
    }
 
-   ASSERT(rb->Data);
+   ASSERT(rb->Buffer);
 
    if (rb->AllocStorage == swrast_alloc_back_storage) {
       map += (rb->Height - 1) * stride;
@@ -434,12 +434,12 @@ swrast_unmap_renderbuffer(struct gl_context *ctx,
 	 sPriv->swrast_loader->putImage(dPriv, __DRI_SWRAST_IMAGE_OP_DRAW,
 					xrb->map_x, xrb->map_y,
 					xrb->map_w, xrb->map_h,
-					rb->Data,
+					rb->Buffer,
 					dPriv->loaderPrivate);
       }
 
-      free(rb->Data);
+      free(rb->Buffer);
-      rb->Data = NULL;
+      rb->Buffer = NULL;
    }
 }
 
@@ -556,7 +556,7 @@ dri_swap_buffers(__DRIdrawable * dPriv)
 				   0, 0,
 				   frontrb->Base.Width,
 				   frontrb->Base.Height,
-				   backrb->Base.Data,
+				   backrb->Base.Buffer,
 				   dPriv->loaderPrivate);
 }
 

src/mesa/drivers/osmesa/osmesa.c

@@ -354,7 +354,7 @@ static void
 compute_row_addresses( OSMesaContext osmesa )
 {
    GLint bytesPerRow, i;
-   GLubyte *origin = (GLubyte *) osmesa->rb->Data;
+   GLubyte *origin = (GLubyte *) osmesa->rb->Buffer;
    GLint rowlength; /* in pixels */
    GLint height = osmesa->rb->Height;
 
@@ -383,7 +383,7 @@ compute_row_addresses( OSMesaContext osmesa )
 
 
 /**
- * Don't use _mesa_delete_renderbuffer since we can't free rb->Data.
+ * Don't use _mesa_delete_renderbuffer since we can't free rb->Buffer.
  */
 static void
 osmesa_delete_renderbuffer(struct gl_renderbuffer *rb)
@@ -891,7 +891,7 @@ OSMesaMakeCurrent( OSMesaContext osmesa, void *buffer, GLenum type,
    /* Set renderbuffer fields.  Set width/height = 0 to force 
     * osmesa_renderbuffer_storage() being called by _mesa_resize_framebuffer()
     */
-   osmesa->rb->Data = buffer;
+   osmesa->rb->Buffer = buffer;
    osmesa->rb->Width = osmesa->rb->Height = 0;
 
    /* Set the framebuffer's size.  This causes the
@@ -1024,7 +1024,7 @@ OSMesaGetDepthBuffer( OSMesaContext c, GLint *width, GLint *height,
    if (c->gl_buffer)
       rb = c->gl_buffer->Attachment[BUFFER_DEPTH].Renderbuffer;
 
-   if (!rb || !rb->Data) {
+   if (!rb || !rb->Buffer) {
       *width = 0;
       *height = 0;
       *bytesPerValue = 0;
@@ -1038,7 +1038,7 @@ OSMesaGetDepthBuffer( OSMesaContext c, GLint *width, GLint *height,
          *bytesPerValue = sizeof(GLushort);
       else
          *bytesPerValue = sizeof(GLuint);
-      *buffer = rb->Data;
+      *buffer = (void *) rb->Buffer;
       return GL_TRUE;
    }
 }
@@ -1056,11 +1056,11 @@ GLAPI GLboolean GLAPIENTRY
 OSMesaGetColorBuffer( OSMesaContext osmesa, GLint *width,
                       GLint *height, GLint *format, void **buffer )
 {
-   if (osmesa->rb && osmesa->rb->Data) {
+   if (osmesa->rb && osmesa->rb->Buffer) {
       *width = osmesa->rb->Width;
       *height = osmesa->rb->Height;
       *format = osmesa->format;
-      *buffer = osmesa->rb->Data;
+      *buffer = (void *) osmesa->rb->Buffer;
       return GL_TRUE;
    }
    else {

src/mesa/drivers/x11/xm_api.c

@@ -1484,7 +1484,7 @@ GLboolean XMesaGetDepthBuffer( XMesaBuffer b, GLint *width, GLint *height,
 {
    struct gl_renderbuffer *rb
       = b->mesa_buffer.Attachment[BUFFER_DEPTH].Renderbuffer;
-   if (!rb || !rb->Data) {
+   if (!rb || !rb->Buffer) {
       *width = 0;
       *height = 0;
       *bytesPerValue = 0;
@@ -1496,7 +1496,7 @@ GLboolean XMesaGetDepthBuffer( XMesaBuffer b, GLint *width, GLint *height,
       *height = b->mesa_buffer.Height;
       *bytesPerValue = b->mesa_buffer.Visual.depthBits <= 16
          ? sizeof(GLushort) : sizeof(GLuint);
-      *buffer = rb->Data;
+      *buffer = (void *) rb->Buffer;
       return GL_TRUE;
    }
 }

src/mesa/main/mtypes.h

@@ -2559,7 +2559,7 @@ struct gl_renderbuffer
    gl_format Format;      /**< The actual renderbuffer memory format */
 
    /* XXX the following fields are obsolete and wil go away */
-   GLvoid *Data;        /**< This may not be used by some kinds of RBs */
+   GLvoid *Buffer;        /**< Malloc'd memory for software buffers */
 
    /** The following fields are only valid while the buffer is mapped */
    GLubyte *Map;

src/mesa/swrast/s_renderbuffer.c

@@ -113,18 +113,18 @@ soft_renderbuffer_storage(struct gl_context *ctx, struct gl_renderbuffer *rb,
    }
 
    /* free old buffer storage */
-   if (rb->Data) {
+   if (rb->Buffer) {
-      free(rb->Data);
+      free(rb->Buffer);
-      rb->Data = NULL;
+      rb->Buffer = NULL;
    }
 
    rb->RowStrideBytes = width * _mesa_get_format_bytes(rb->Format);
 
    if (width > 0 && height > 0) {
       /* allocate new buffer storage */
-      rb->Data = malloc(width * height * _mesa_get_format_bytes(rb->Format));
+      rb->Buffer = malloc(width * height * _mesa_get_format_bytes(rb->Format));
 
-      if (rb->Data == NULL) {
+      if (rb->Buffer == NULL) {
          rb->Width = 0;
          rb->Height = 0;
          _mesa_error(ctx, GL_OUT_OF_MEMORY,
@@ -162,9 +162,9 @@ soft_renderbuffer_storage(struct gl_context *ctx, struct gl_renderbuffer *rb,
 static void
 soft_renderbuffer_delete(struct gl_renderbuffer *rb)
 {
-   if (rb->Data) {
+   if (rb->Buffer) {
-      free(rb->Data);
+      free(rb->Buffer);
-      rb->Data = NULL;
+      rb->Buffer = NULL;
    }
    free(rb);
 }
@@ -178,11 +178,14 @@ _swrast_map_soft_renderbuffer(struct gl_context *ctx,
                               GLubyte **out_map,
                               GLint *out_stride)
 {
-   GLubyte *map = rb->Data;
+   GLubyte *map = rb->Buffer;
    int cpp = _mesa_get_format_bytes(rb->Format);
    int stride = rb->Width * cpp;
 
-   ASSERT(rb->Data);
+   if (!map) {
+      *out_map = NULL;
+      *out_stride = 0;
+   }
 
    map += y * stride;
    map += x * cpp;

src/mesa/swrast/s_texrender.c

@@ -135,12 +135,12 @@ update_wrapper(struct gl_context *ctx, struct gl_renderbuffer_attachment *att)
     */
    if (att->Texture->Target == GL_TEXTURE_3D ||
        att->Texture->Target == GL_TEXTURE_2D_ARRAY_EXT) {
-      trb->Base.Data = trb->TexImage->Buffer +
+      trb->Base.Buffer = trb->TexImage->Buffer +
          trb->TexImage->ImageOffsets[trb->Zoffset] *
          _mesa_get_format_bytes(trb->TexImage->Base.TexFormat);
    }
    else {
-      trb->Base.Data = trb->TexImage->Buffer;
+      trb->Base.Buffer = trb->TexImage->Buffer;
    }
 
    /* XXX may need more special cases here */