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authormarha <marha@users.sourceforge.net>2012-05-15 15:07:22 +0200
committermarha <marha@users.sourceforge.net>2012-05-15 15:07:22 +0200
commit9818207986d5db9831e43eb2a640be68f54bb2ef (patch)
treee1ac6d17b2da887a2110c1337f01fc6fbdfa68fd /mesalib/src/mesa/state_tracker/st_draw_feedback.c
parente6ff1fe09702cb307729b3208175c84f623f2968 (diff)
parent062c45ff0df6a52080dcd74433710d47127cbe29 (diff)
downloadvcxsrv-9818207986d5db9831e43eb2a640be68f54bb2ef.tar.gz
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Merge remote-tracking branch 'origin/released'
Diffstat (limited to 'mesalib/src/mesa/state_tracker/st_draw_feedback.c')
-rw-r--r--mesalib/src/mesa/state_tracker/st_draw_feedback.c32
1 files changed, 14 insertions, 18 deletions
diff --git a/mesalib/src/mesa/state_tracker/st_draw_feedback.c b/mesalib/src/mesa/state_tracker/st_draw_feedback.c
index 257618aa9..4209fb214 100644
--- a/mesalib/src/mesa/state_tracker/st_draw_feedback.c
+++ b/mesalib/src/mesa/state_tracker/st_draw_feedback.c
@@ -107,7 +107,7 @@ st_feedback_draw_vbo(struct gl_context *ctx,
struct pipe_vertex_buffer vbuffers[PIPE_MAX_SHADER_INPUTS];
struct pipe_vertex_element velements[PIPE_MAX_ATTRIBS];
struct pipe_index_buffer ibuffer;
- struct pipe_transfer *vb_transfer[PIPE_MAX_ATTRIBS];
+ struct pipe_transfer *vb_transfer[PIPE_MAX_ATTRIBS] = {NULL};
struct pipe_transfer *ib_transfer = NULL;
const struct gl_client_array **arrays = ctx->Array._DrawArrays;
GLuint attr, i;
@@ -169,23 +169,24 @@ st_feedback_draw_vbo(struct gl_context *ctx,
assert(stobj->buffer);
vbuffers[attr].buffer = NULL;
+ vbuffers[attr].user_buffer = NULL;
pipe_resource_reference(&vbuffers[attr].buffer, stobj->buffer);
vbuffers[attr].buffer_offset = pointer_to_offset(low_addr);
velements[attr].src_offset = arrays[mesaAttr]->Ptr - low_addr;
+
+ /* map the attrib buffer */
+ map = pipe_buffer_map(pipe, vbuffers[attr].buffer,
+ PIPE_TRANSFER_READ,
+ &vb_transfer[attr]);
+ draw_set_mapped_vertex_buffer(draw, attr, map);
}
else {
- /* attribute data is in user-space memory, not a VBO */
- uint bytes = (arrays[mesaAttr]->Size
- * _mesa_sizeof_type(arrays[mesaAttr]->Type)
- * (max_index + 1));
-
- /* wrap user data */
- vbuffers[attr].buffer
- = pipe_user_buffer_create(pipe->screen, (void *) arrays[mesaAttr]->Ptr,
- bytes,
- PIPE_BIND_VERTEX_BUFFER);
+ vbuffers[attr].buffer = NULL;
+ vbuffers[attr].user_buffer = arrays[mesaAttr]->Ptr;
vbuffers[attr].buffer_offset = 0;
velements[attr].src_offset = 0;
+
+ draw_set_mapped_vertex_buffer(draw, attr, vbuffers[attr].user_buffer);
}
/* common-case setup */
@@ -204,12 +205,6 @@ st_feedback_draw_vbo(struct gl_context *ctx,
#if 0
draw_set_vertex_buffer(draw, attr, &vbuffer[attr]);
#endif
-
- /* map the attrib buffer */
- map = pipe_buffer_map(pipe, vbuffers[attr].buffer,
- PIPE_TRANSFER_READ,
- &vb_transfer[attr]);
- draw_set_mapped_vertex_buffer(draw, attr, map);
}
draw_set_vertex_buffers(draw, vp->num_inputs, vbuffers);
@@ -267,7 +262,8 @@ st_feedback_draw_vbo(struct gl_context *ctx,
out_unref_vertex:
for (attr = 0; attr < vp->num_inputs; attr++) {
- pipe_buffer_unmap(pipe, vb_transfer[attr]);
+ if (vb_transfer[attr])
+ pipe_buffer_unmap(pipe, vb_transfer[attr]);
draw_set_mapped_vertex_buffer(draw, attr, NULL);
pipe_resource_reference(&vbuffers[attr].buffer, NULL);
}