diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/gallium/drivers/r600/r600_draw.c | 39 |
1 files changed, 37 insertions, 2 deletions
diff --git a/src/gallium/drivers/r600/r600_draw.c b/src/gallium/drivers/r600/r600_draw.c index cbfa44868e8..5cebf67b070 100644 --- a/src/gallium/drivers/r600/r600_draw.c +++ b/src/gallium/drivers/r600/r600_draw.c @@ -31,12 +31,41 @@ #include <util/u_math.h> #include <util/u_inlines.h> #include <util/u_memory.h> +#include <util/u_index_modify.h> #include "radeon.h" #include "r600_screen.h" #include "r600_context.h" #include "r600_resource.h" #include "r600_state_inlines.h" +static void r600_translate_index_buffer(struct r600_context *r600, + struct pipe_resource **index_buffer, + unsigned *index_size, unsigned index_offset, + unsigned *start, unsigned count) +{ + switch (*index_size) { + case 1: + util_shorten_ubyte_elts(&r600->context, index_buffer, index_offset, *start, count); + *index_size = 2; + *start = 0; + break; + + case 2: + if (*start % 2 != 0 || index_offset) { + util_rebuild_ushort_elts(&r600->context, index_buffer, index_offset, *start, count); + *start = 0; + } + break; + + case 4: + if (index_offset) { + util_rebuild_uint_elts(&r600->context, index_buffer, index_offset, *start, count); + *start = 0; + } + break; + } +} + static int r600_draw_common(struct r600_draw *draw) { struct r600_context *rctx = r600_context(draw->ctx); @@ -135,14 +164,20 @@ void r600_draw_vbo(struct pipe_context *ctx, const struct pipe_draw_info *info) draw.start = info->start; draw.count = info->count; if (info->indexed && rctx->index_buffer.buffer) { + draw.start += rctx->index_buffer.offset / rctx->index_buffer.index_size; draw.min_index = info->min_index; draw.max_index = info->max_index; + + r600_translate_index_buffer(rctx, &rctx->index_buffer.buffer, + &rctx->index_buffer.index_size, + rctx->index_buffer.offset, &draw.start, + info->count); + + fprintf(stderr,"draw start is %d\n", draw.start); draw.index_size = rctx->index_buffer.index_size; draw.index_buffer = rctx->index_buffer.buffer; draw.index_buffer_offset = rctx->index_buffer.offset; - assert(rctx->index_buffer.offset % - rctx->index_buffer.index_size == 0); r600_upload_index_buffer(rctx, &draw); } else { |