Merge branch 'gallium-userbuf'

Conflicts:
	src/gallium/docs/source/screen.rst
	src/gallium/drivers/nv50/nv50_state.c
	src/gallium/include/pipe/p_defines.h
	src/mesa/state_tracker/st_draw.c

3 files changed, 20 insertions, 14 deletions

diff --git a/src/gallium/include/pipe/p_context.h b/src/gallium/include/pipe/p_context.h
index 0951e70f481..f59e3881232 100644
--- a/src/gallium/include/pipe/p_context.h
+++ b/src/gallium/include/pipe/p_context.h
@@ -41,6 +41,7 @@ struct pipe_blend_color;
 struct pipe_blend_state;
 struct pipe_box;
 struct pipe_clip_state;
+struct pipe_constant_buffer;
 struct pipe_depth_stencil_alpha_state;
 struct pipe_draw_info;
 struct pipe_fence_handle;
@@ -199,7 +200,7 @@ struct pipe_context {
 
    void (*set_constant_buffer)( struct pipe_context *,
                                 uint shader, uint index,
-                                struct pipe_resource *buf );
+                                struct pipe_constant_buffer *buf );
 
    void (*set_framebuffer_state)( struct pipe_context *,
                                   const struct pipe_framebuffer_state * );
@@ -414,15 +415,6 @@ struct pipe_context {
                                   unsigned stride,
                                   unsigned layer_stride);
 
-
-   /* Notify a driver that a content of a user buffer has been changed.
-    * The changed range is [offset, offset+size-1].
-    * The new width0 of the buffer is offset+size. */
-   void (*redefine_user_buffer)(struct pipe_context *,
-                                struct pipe_resource *,
-                                unsigned offset,
-                                unsigned size);
-
    /**
     * Flush any pending framebuffer writes and invalidate texture caches.
     */
diff --git a/src/gallium/include/pipe/p_defines.h b/src/gallium/include/pipe/p_defines.h
index edcca23746b..1e05cc4caee 100644
--- a/src/gallium/include/pipe/p_defines.h
+++ b/src/gallium/include/pipe/p_defines.h
@@ -481,7 +481,10 @@ enum pipe_cap {
    PIPE_CAP_VERTEX_BUFFER_OFFSET_4BYTE_ALIGNED_ONLY = 65,
    PIPE_CAP_VERTEX_BUFFER_STRIDE_4BYTE_ALIGNED_ONLY = 66,
    PIPE_CAP_VERTEX_ELEMENT_SRC_OFFSET_4BYTE_ALIGNED_ONLY = 67,
-   PIPE_CAP_COMPUTE = 68
+   PIPE_CAP_COMPUTE = 68,
+   PIPE_CAP_USER_INDEX_BUFFERS = 69,
+   PIPE_CAP_USER_CONSTANT_BUFFERS = 70,
+   PIPE_CAP_CONSTANT_BUFFER_OFFSET_ALIGNMENT = 71
 };
 
 /**
diff --git a/src/gallium/include/pipe/p_state.h b/src/gallium/include/pipe/p_state.h
index 02cd1fdfafb..51a956d9532 100644
--- a/src/gallium/include/pipe/p_state.h
+++ b/src/gallium/include/pipe/p_state.h
@@ -417,9 +417,6 @@ struct pipe_resource
 
    unsigned bind;            /**< bitmask of PIPE_BIND_x */
    unsigned flags;           /**< bitmask of PIPE_RESOURCE_FLAG_x */
-
-   /* XXX this is only temporary and will be removed once it's not needed */
-   uint8_t *user_ptr;        /**< user buffer pointer */
 };
 
 
@@ -449,6 +446,19 @@ struct pipe_vertex_buffer
    unsigned stride;    /**< stride to same attrib in next vertex, in bytes */
    unsigned buffer_offset;  /**< offset to start of data in buffer, in bytes */
    struct pipe_resource *buffer;  /**< the actual buffer */
+   const void *user_buffer;  /**< pointer to a user buffer if buffer == NULL */
+};
+
+
+/**
+ * A constant buffer.  A subrange of an existing buffer can be set
+ * as a constant buffer.
+ */
+struct pipe_constant_buffer {
+   struct pipe_resource *buffer; /**< the actual buffer */
+   unsigned buffer_offset; /**< offset to start of data in buffer, in bytes */
+   unsigned buffer_size;   /**< how much data can be read in shader */
+   const void *user_buffer;  /**< pointer to a user buffer if buffer == NULL */
 };
 
 
@@ -507,6 +517,7 @@ struct pipe_index_buffer
    unsigned index_size;  /**< size of an index, in bytes */
    unsigned offset;  /**< offset to start of data in buffer, in bytes */
    struct pipe_resource *buffer; /**< the actual buffer */
+   const void *user_buffer;  /**< pointer to a user buffer if buffer == NULL */
 };