diff options
author | Chia-I Wu <[email protected]> | 2010-07-16 04:35:58 +0800 |
---|---|---|
committer | Chia-I Wu <[email protected]> | 2010-07-29 13:45:30 +0800 |
commit | 6d28bf917fb1d741d90fd3f05c22769376021fca (patch) | |
tree | 9b8724b30658d61426297113136c2d23c0c62f14 /src/gallium/drivers/softpipe/sp_draw_arrays.c | |
parent | c5e9d3114a80d6d35a2f4e65783cdc75fcc2deac (diff) |
gallium: Implement draw_vbo and set_index_buffer for all drivers.
Some drivers define a generic function that is called by all drawing
functions. To implement draw_vbo for such drivers, either draw_vbo
calls the generic function or the prototype of the generic function is
changed to match draw_vbo.
Other drivers have no such generic function. draw_vbo is implemented by
calling either draw_arrays and draw_elements.
For most drivers, set_index_buffer does not mark the state dirty for
tracking. Instead, the index buffer state is emitted whenever draw_vbo
is called, just like the case with draw_elements. It surely can be
improved.
Diffstat (limited to 'src/gallium/drivers/softpipe/sp_draw_arrays.c')
-rw-r--r-- | src/gallium/drivers/softpipe/sp_draw_arrays.c | 92 |
1 files changed, 62 insertions, 30 deletions
diff --git a/src/gallium/drivers/softpipe/sp_draw_arrays.c b/src/gallium/drivers/softpipe/sp_draw_arrays.c index 9e727c93811..2855f55a0e1 100644 --- a/src/gallium/drivers/softpipe/sp_draw_arrays.c +++ b/src/gallium/drivers/softpipe/sp_draw_arrays.c @@ -35,6 +35,7 @@ #include "pipe/p_context.h" #include "util/u_inlines.h" #include "util/u_prim.h" +#include "util/u_draw_quad.h" #include "sp_context.h" #include "sp_query.h" @@ -111,27 +112,19 @@ softpipe_draw_stream_output(struct pipe_context *pipe, unsigned mode) * When the min/max element indexes aren't known, minIndex should be 0 * and maxIndex should be ~0. */ -static void -softpipe_draw_range_elements_instanced(struct pipe_context *pipe, - struct pipe_resource *indexBuffer, - unsigned indexSize, - int indexBias, - unsigned minIndex, - unsigned maxIndex, - unsigned mode, - unsigned start, - unsigned count, - unsigned startInstance, - unsigned instanceCount) +void +softpipe_draw_vbo(struct pipe_context *pipe, + const struct pipe_draw_info *info) { struct softpipe_context *sp = softpipe_context(pipe); struct draw_context *draw = sp->draw; + void *mapped_indices = NULL; unsigned i; if (!softpipe_check_render_cond(sp)) return; - sp->reduced_api_prim = u_reduced_prim(mode); + sp->reduced_api_prim = u_reduced_prim(info->mode); if (sp->dirty) { softpipe_update_derived(sp); @@ -146,31 +139,27 @@ softpipe_draw_range_elements_instanced(struct pipe_context *pipe, } /* Map index buffer, if present */ - if (indexBuffer) { - void *mapped_indexes = softpipe_resource(indexBuffer)->data; - draw_set_mapped_element_buffer_range(draw, - indexSize, - indexBias, - minIndex, - maxIndex, - mapped_indexes); - } else { - /* no index/element buffer */ - draw_set_mapped_element_buffer_range(draw, - 0, 0, - start, - start + count - 1, - NULL); + if (info->indexed && sp->index_buffer.buffer) { + mapped_indices = softpipe_resource(sp->index_buffer.buffer)->data; + mapped_indices += sp->index_buffer.offset; } + draw_set_mapped_element_buffer_range(draw, (mapped_indices) ? + sp->index_buffer.index_size : 0, + info->index_bias, + info->min_index, + info->max_index, + mapped_indices); + /* draw! */ - draw_arrays_instanced(draw, mode, start, count, startInstance, instanceCount); + draw_arrays_instanced(draw, info->mode, info->start, info->count, + info->start_instance, info->instance_count); /* unmap vertex/index buffers - will cause draw module to flush */ for (i = 0; i < sp->num_vertex_buffers; i++) { draw_set_mapped_vertex_buffer(draw, i, NULL); } - if (indexBuffer) { + if (mapped_indices) { draw_set_mapped_element_buffer(draw, 0, 0, NULL); } @@ -185,6 +174,49 @@ softpipe_draw_range_elements_instanced(struct pipe_context *pipe, sp->dirty_render_cache = TRUE; } +static void +softpipe_draw_range_elements_instanced(struct pipe_context *pipe, + struct pipe_resource *indexBuffer, + unsigned indexSize, + int indexBias, + unsigned minIndex, + unsigned maxIndex, + unsigned mode, + unsigned start, + unsigned count, + unsigned startInstance, + unsigned instanceCount) +{ + struct softpipe_context *sp = softpipe_context(pipe); + struct pipe_draw_info info; + struct pipe_index_buffer saved_ib, ib; + + util_draw_init_info(&info); + info.mode = mode; + info.start = start; + info.count = count; + info.start_instance = startInstance; + info.instance_count = instanceCount; + info.index_bias = indexBias; + info.min_index = minIndex; + info.max_index = maxIndex; + + if (indexBuffer) { + info.indexed = TRUE; + + saved_ib = sp->index_buffer; + ib.buffer = indexBuffer; + ib.offset = 0; + ib.index_size = indexSize; + pipe->set_index_buffer(pipe, &ib); + } + + softpipe_draw_vbo(pipe, &info); + + if (indexBuffer) + pipe->set_index_buffer(pipe, &saved_ib); +} + void softpipe_draw_range_elements(struct pipe_context *pipe, |