From 9ac1a8d416c2bd50ca10186ca09f5e86f6fa4ce6 Mon Sep 17 00:00:00 2001
From: Brian <brian.paul@tungstengraphics.com>
Date: Fri, 10 Aug 2007 12:13:48 -0600
Subject: pipe->region_alloc() now takes width instead of pitch, plus a flags
 param

---
 src/mesa/pipe/i915simple/i915_regions.c | 11 +++++++++--
 src/mesa/pipe/p_context.h               |  3 ++-
 src/mesa/pipe/p_defines.h               | 19 +++++++++++++++----
 src/mesa/pipe/p_state.h                 | 10 ----------
 src/mesa/pipe/softpipe/sp_region.c      |  2 +-
 5 files changed, 27 insertions(+), 18 deletions(-)

(limited to 'src/mesa/pipe')

diff --git a/src/mesa/pipe/i915simple/i915_regions.c b/src/mesa/pipe/i915simple/i915_regions.c
index e2b807f959..b3bcae547d 100644
--- a/src/mesa/pipe/i915simple/i915_regions.c
+++ b/src/mesa/pipe/i915simple/i915_regions.c
@@ -31,6 +31,7 @@
  *   - refcounting of buffer mappings.
  */
 
+#include "pipe/p_defines.h"
 #include "i915_context.h"
 #include "i915_winsys.h"
 #include "i915_blit.h"
@@ -70,7 +71,7 @@ i915_region_unmap(struct pipe_context *pipe, struct pipe_region *region)
 
 static struct pipe_region *
 i915_region_alloc(struct pipe_context *pipe,
-		  GLuint cpp, GLuint width, GLuint height)
+		  GLuint cpp, GLuint width, GLuint height, GLbitfield flags)
 {
    struct i915_context *i915 = i915_context( pipe );
    struct pipe_region *region = calloc(sizeof(*region), 1);
@@ -82,7 +83,13 @@ i915_region_alloc(struct pipe_context *pipe,
     * clearly want to be able to render to textures under some
     * circumstances, but maybe not always a requirement.
     */
-   unsigned pitch = ((cpp * width + 63) & ~63) / cpp;
+   unsigned pitch;
+
+   /* XXX is the pitch different for textures vs. drawables? */
+   if (flags & PIPE_SURFACE_FLAG_TEXTURE)  /* or PIPE_SURFACE_FLAG_RENDER? */
+      pitch = ((cpp * width + 63) & ~63) / cpp;
+   else
+      pitch = ((cpp * width + 63) & ~63) / cpp;
 
    region->cpp = cpp;
    region->pitch = pitch;
diff --git a/src/mesa/pipe/p_context.h b/src/mesa/pipe/p_context.h
index b5dd149603..7eb492816b 100644
--- a/src/mesa/pipe/p_context.h
+++ b/src/mesa/pipe/p_context.h
@@ -140,7 +140,8 @@ struct pipe_context {
     * Some of these may go away...
     */
    struct pipe_region *(*region_alloc)(struct pipe_context *pipe,
-                                       GLuint cpp, GLuint pitch, GLuint height);
+                                       GLuint cpp, GLuint width, GLuint height,
+                                       GLbitfield flags);
 
    void (*region_release)(struct pipe_context *pipe, struct pipe_region **r);
 
diff --git a/src/mesa/pipe/p_defines.h b/src/mesa/pipe/p_defines.h
index efbb3239a2..52ecd5b119 100644
--- a/src/mesa/pipe/p_defines.h
+++ b/src/mesa/pipe/p_defines.h
@@ -176,11 +176,22 @@
 
 
 /**
- * Buffer mapping access modes
+ * Surface flags
  */
-#define PIPE_MAP_READ         1
-#define PIPE_MAP_WRITE        2
-#define PIPE_MAP_READ_WRITE   3
+#define PIPE_SURFACE_FLAG_TEXTURE 0x1
+#define PIPE_SURFACE_FLAG_RENDER  0x2
+
+
+/**
+ * Buffer flags
+ */
+#define PIPE_BUFFER_FLAG_READ    0x1
+#define PIPE_BUFFER_FLAG_WRITE   0x2
+
+#define PIPE_BUFFER_USE_TEXTURE         0x1
+#define PIPE_BUFFER_USE_VERTEX_BUFFER   0x2
+#define PIPE_BUFFER_USE_INDEX_BUFFER    0x4
+#define PIPE_BUFFER_USE_RENDER_TARGET   0x8
 
 
 /** 
diff --git a/src/mesa/pipe/p_state.h b/src/mesa/pipe/p_state.h
index 64a475ba00..df456cc2ed 100644
--- a/src/mesa/pipe/p_state.h
+++ b/src/mesa/pipe/p_state.h
@@ -329,15 +329,5 @@ struct pipe_mipmap_tree
 
 struct pipe_buffer_handle;
 
-#define PIPE_BUFFER_FLAG_READ    0x1
-#define PIPE_BUFFER_FLAG_WRITE   0x2
-
-#define PIPE_BUFFER_USE_TEXTURE         0x1
-#define PIPE_BUFFER_USE_VERTEX_BUFFER   0x2
-#define PIPE_BUFFER_USE_INDEX_BUFFER    0x4
-#define PIPE_BUFFER_USE_RENDER_TARGET   0x8
-
-
-
 
 #endif
diff --git a/src/mesa/pipe/softpipe/sp_region.c b/src/mesa/pipe/softpipe/sp_region.c
index 58749492ec..1db508f028 100644
--- a/src/mesa/pipe/softpipe/sp_region.c
+++ b/src/mesa/pipe/softpipe/sp_region.c
@@ -70,7 +70,7 @@ sp_region_unmap(struct pipe_context *pipe, struct pipe_region *region)
 
 static struct pipe_region *
 sp_region_alloc(struct pipe_context *pipe,
-		GLuint cpp, GLuint pitch, GLuint height)
+		GLuint cpp, GLuint pitch, GLuint height, GLbitfield flags)
 {
    struct softpipe_context *sp = softpipe_context( pipe );
    struct pipe_region *region = calloc(sizeof(*region), 1);
-- 
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