diff options
| author | Xiang, Haihao <[email protected]> | 2007-09-14 11:10:23 +0800 |
|---|---|---|
| committer | Xiang, Haihao <[email protected]> | 2007-09-14 11:10:23 +0800 |
| commit | ea07a0df9a2f689b8f5acaf92c40bbbd602cab3c (patch) | |
| tree | cfeb727b44aa51511990e51444d972779d57f38a /src/mesa | |
| parent | 75a0f7f4a73270714181662bbb12dd5de5eb7f79 (diff) | |
i965: align the address of the first element within
the index buffer. (fix#11910)
Diffstat (limited to 'src/mesa')
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_draw_upload.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_draw_upload.c b/src/mesa/drivers/dri/i965/brw_draw_upload.c index 6150cac4aa3..dc289ca9ae7 100644 --- a/src/mesa/drivers/dri/i965/brw_draw_upload.c +++ b/src/mesa/drivers/dri/i965/brw_draw_upload.c @@ -593,6 +593,28 @@ void brw_upload_indices( struct brw_context *brw, ib_size, index_buffer->ptr, bufferobj); + } else { + if (((1 << get_index_type(index_buffer->type)) - 1) & offset) { + struct gl_buffer_object *vbo; + GLuint voffset; + GLubyte *map = ctx->Driver.MapBuffer(ctx, + GL_ELEMENT_ARRAY_BUFFER_ARB, + GL_DYNAMIC_DRAW_ARB, + bufferobj); + map += offset; + get_space(brw, ib_size, &vbo, &voffset); + + ctx->Driver.BufferSubData(ctx, + GL_ELEMENT_ARRAY_BUFFER_ARB, + voffset, + ib_size, + map, + vbo); + ctx->Driver.UnmapBuffer(ctx, GL_ELEMENT_ARRAY_BUFFER_ARB, bufferobj); + + bufferobj = vbo; + offset = voffset; + } } /* Emit the indexbuffer packet: |