[g3dvl] split idct code into state and buffers

[mesa.git] / src / gallium / auxiliary / vl / vl_vertex_buffers.c

diff --git a/src/gallium/auxiliary/vl/vl_vertex_buffers.c b/src/gallium/auxiliary/vl/vl_vertex_buffers.c
index 4e0d704a23d39330179ccaa0d01767d0ff90c18b..4647685053b4fc1d944d8b1a3d41ee939e61b6e9 100644 (file)
--- a/src/gallium/auxiliary/vl/vl_vertex_buffers.c
+++ b/src/gallium/auxiliary/vl/vl_vertex_buffers.c
@@ -40,7 +40,7 @@ static const struct quadf const_quad = {
 };
 
 struct pipe_vertex_buffer
-vl_vb_upload_quads(struct pipe_context *pipe, unsigned max_blocks, struct pipe_vertex_element* element)
+vl_vb_upload_quads(struct pipe_context *pipe, unsigned max_blocks)
 {
    struct pipe_vertex_buffer quad;
    struct pipe_transfer *buf_transfer;
@@ -50,13 +50,6 @@ vl_vb_upload_quads(struct pipe_context *pipe, unsigned max_blocks, struct pipe_v
 
    assert(pipe);
    assert(max_blocks);
-   assert(element);
-
-   /* setup rectangle element */
-   element->src_offset = 0;
-   element->instance_divisor = 0;
-   element->vertex_buffer_index = 0;
-   element->src_format = PIPE_FORMAT_R32G32_FLOAT;
 
    /* create buffer */
    quad.stride = sizeof(struct vertex2f);
@@ -89,34 +82,56 @@ vl_vb_upload_quads(struct pipe_context *pipe, unsigned max_blocks, struct pipe_v
    return quad;
 }
 
+struct pipe_vertex_element
+vl_vb_get_quad_vertex_element()
+{
+   struct pipe_vertex_element element;
+
+   /* setup rectangle element */
+   element.src_offset = 0;
+   element.instance_divisor = 0;
+   element.vertex_buffer_index = 0;
+   element.src_format = PIPE_FORMAT_R32G32_FLOAT;
+
+   return element;
+}
+
 struct pipe_vertex_buffer
-vl_vb_create_buffer(struct pipe_context *pipe, unsigned max_blocks,
-                    struct pipe_vertex_element *elements, unsigned num_elements,
-                    unsigned vertex_buffer_index)
+vl_vb_create_buffer(struct pipe_context *pipe, unsigned max_blocks, unsigned stride)
 {
    struct pipe_vertex_buffer buf;
-   unsigned i, size = 0;
-
-   for ( i = 0; i < num_elements; ++i ) {
-      elements[i].src_offset = size;
-      elements[i].instance_divisor = 0;
-      elements[i].vertex_buffer_index = vertex_buffer_index;
-      size += util_format_get_blocksize(elements[i].src_format);
-   }
 
-   buf.stride = size;
+   buf.stride = stride;
    buf.max_index = 4 * max_blocks - 1;
    buf.buffer_offset = 0;
    buf.buffer = pipe_buffer_create
    (
       pipe->screen,
       PIPE_BIND_VERTEX_BUFFER,
-      size * 4 * max_blocks
+      stride * 4 * max_blocks
    );
 
    return buf;
 }
 
+unsigned
+vl_vb_element_helper(struct pipe_vertex_element* elements, unsigned num_elements,
+                              unsigned vertex_buffer_index)
+{
+   unsigned i, offset = 0;
+
+   assert(elements && num_elements);
+
+   for ( i = 0; i < num_elements; ++i ) {
+      elements[i].src_offset = offset;
+      elements[i].instance_divisor = 0;
+      elements[i].vertex_buffer_index = vertex_buffer_index;
+      offset += util_format_get_blocksize(elements[i].src_format);
+   }
+
+   return offset;
+}
+
 bool
 vl_vb_init(struct vl_vertex_buffer *buffer, unsigned max_blocks, unsigned num_elements)
 {