/**
* Set the draw module's clipping state.
*/
void draw_set_clip_state( struct draw_context *draw,
const struct pipe_clip_state *clip )
{
draw_do_flush(draw, DRAW_FLUSH_PARAMETER_CHANGE);
memcpy(&draw->plane[6], clip->ucp, sizeof(clip->ucp));
}
void
draw_set_mapped_constant_buffer(struct draw_context *draw,
unsigned shader_type,
unsigned slot,
const void *buffer,
unsigned size )
{
debug_assert(shader_type == PIPE_SHADER_VERTEX ||
shader_type == PIPE_SHADER_GEOMETRY);
debug_assert(slot < PIPE_MAX_CONSTANT_BUFFERS);
draw_do_flush(draw, DRAW_FLUSH_PARAMETER_CHANGE);
switch (shader_type) {
case PIPE_SHADER_VERTEX:
draw->pt.user.vs_constants[slot] = buffer;
draw->pt.user.vs_constants_size[slot] = size;
break;
case PIPE_SHADER_GEOMETRY:
draw->pt.user.gs_constants[slot] = buffer;
draw->pt.user.gs_constants_size[slot] = size;
break;
default:
assert(0 && "invalid shader type in draw_set_mapped_constant_buffer");
}
}
void draw_pt_so_emit_prepare(struct pt_so_emit *emit)
{
struct draw_context *draw = emit->draw;
emit->has_so = (draw->vs.vertex_shader->state.stream_output.num_outputs > 0);
/* if we have a state with outputs make sure we have
* buffers to output to */
if (emit->has_so) {
boolean has_valid_buffer = FALSE;
unsigned i;
for (i = 0; i < draw->so.num_targets; ++i) {
if (draw->so.targets[i]) {
has_valid_buffer = TRUE;
break;
}
}
emit->has_so = has_valid_buffer;
}
if (!emit->has_so)
return;
/* XXX: need to flush to get prim_vbuf.c to release its allocation??
*/
draw_do_flush( draw, DRAW_FLUSH_BACKEND );
}
void
draw_set_samplers(struct draw_context *draw,
unsigned shader_stage,
struct pipe_sampler_state **samplers,
unsigned num)
{
unsigned i;
debug_assert(shader_stage < PIPE_SHADER_TYPES);
debug_assert(num <= PIPE_MAX_SAMPLERS);
draw_do_flush( draw, DRAW_FLUSH_STATE_CHANGE );
for (i = 0; i < num; ++i)
draw->samplers[shader_stage][i] = samplers[i];
for (i = num; i < PIPE_MAX_SAMPLERS; ++i)
draw->samplers[shader_stage][i] = NULL;
draw->num_samplers[shader_stage] = num;
#ifdef HAVE_LLVM
if (draw->llvm && shader_stage == PIPE_SHADER_VERTEX)
draw_llvm_set_sampler_state(draw);
#endif
}
static void
fse_run_linear(struct draw_pt_middle_end *middle,
unsigned start,
unsigned count,
unsigned prim_flags)
{
struct fetch_shade_emit *fse = (struct fetch_shade_emit *)middle;
struct draw_context *draw = fse->draw;
char *hw_verts;
/* XXX: need to flush to get prim_vbuf.c to release its allocation??
*/
draw_do_flush( draw, DRAW_FLUSH_BACKEND );
if (!draw->render->allocate_vertices( draw->render,
(ushort)fse->key.output_stride,
(ushort)count ))
goto fail;
hw_verts = draw->render->map_vertices( draw->render );
if (!hw_verts)
goto fail;
/* Single routine to fetch vertices, run shader and emit HW verts.
* Clipping is done elsewhere -- either by the API or on hardware,
* or for some other reason not required...
*/
fse->active->run_linear( fse->active,
start, count,
hw_verts );
if (0) {
unsigned i;
for (i = 0; i < count; i++) {
debug_printf("\n\n%s vertex %d: (stride %d, offset %d)\n", __FUNCTION__, i,
fse->key.output_stride,
fse->key.output_stride * i);
draw_dump_emitted_vertex( fse->vinfo,
(const uint8_t *)hw_verts + fse->key.output_stride * i );
}
}
draw->render->unmap_vertices( draw->render, 0, (ushort)(count - 1) );
/* Draw arrays path to avoid re-emitting index list again and
* again.
*/
draw->render->draw_arrays( draw->render,
0,
count );
draw->render->release_vertices( draw->render );
return;
fail:
debug_warn_once("allocate or map of vertex buffer failed (out of memory?)");
return;
}
/**
* Set the draw module's viewport state.
*/
void draw_set_viewport_states( struct draw_context *draw,
unsigned start_slot,
unsigned num_viewports,
const struct pipe_viewport_state *vps )
{
const struct pipe_viewport_state *viewport = vps;
draw_do_flush(draw, DRAW_FLUSH_PARAMETER_CHANGE);
debug_assert(start_slot < PIPE_MAX_VIEWPORTS);
debug_assert((start_slot + num_viewports) <= PIPE_MAX_VIEWPORTS);
memcpy(draw->viewports + start_slot, vps,
sizeof(struct pipe_viewport_state) * num_viewports);
draw->identity_viewport = (num_viewports == 1) &&
(viewport->scale[0] == 1.0f &&
viewport->scale[1] == 1.0f &&
viewport->scale[2] == 1.0f &&
viewport->scale[3] == 1.0f &&
viewport->translate[0] == 0.0f &&
viewport->translate[1] == 0.0f &&
viewport->translate[2] == 0.0f &&
viewport->translate[3] == 0.0f);
draw->driver.bypass_clip_xy = vps[0].scale[3] == 0.0f;
draw->clip_xy = !draw->driver.bypass_clip_xy;
draw->identity_viewport =
draw->identity_viewport || vps[0].scale[3] == 0.0f;
}
/**
* Plug in the primitive rendering/rasterization stage (which is the last
* stage in the drawing pipeline).
* This is provided by the device driver.
*/
void draw_set_rasterize_stage( struct draw_context *draw,
struct draw_stage *stage )
{
draw_do_flush( draw, DRAW_FLUSH_STATE_CHANGE );
draw->pipeline.rasterize = stage;
}
void draw_pt_so_emit_prepare(struct pt_so_emit *emit, boolean use_pre_clip_pos)
{
struct draw_context *draw = emit->draw;
emit->use_pre_clip_pos = use_pre_clip_pos;
emit->has_so = draw_has_so(draw);
if (use_pre_clip_pos)
emit->pos_idx = draw_current_shader_position_output(draw);
/* if we have a state with outputs make sure we have
* buffers to output to */
if (emit->has_so) {
boolean has_valid_buffer = FALSE;
unsigned i;
for (i = 0; i < draw->so.num_targets; ++i) {
if (draw->so.targets[i]) {
has_valid_buffer = TRUE;
break;
}
}
emit->has_so = has_valid_buffer;
}
if (!emit->has_so)
return;
/* XXX: need to flush to get prim_vbuf.c to release its allocation??
*/
draw_do_flush( draw, DRAW_FLUSH_BACKEND );
}
static void fetch_emit_run( struct draw_pt_middle_end *middle,
const unsigned *fetch_elts,
unsigned fetch_count,
const ushort *draw_elts,
unsigned draw_count,
unsigned prim_flags )
{
struct fetch_emit_middle_end *feme = (struct fetch_emit_middle_end *)middle;
struct draw_context *draw = feme->draw;
void *hw_verts;
/* XXX: need to flush to get prim_vbuf.c to release its allocation??
*/
draw_do_flush( draw, DRAW_FLUSH_BACKEND );
draw->render->allocate_vertices( draw->render,
(ushort)feme->translate->key.output_stride,
(ushort)fetch_count );
hw_verts = draw->render->map_vertices( draw->render );
if (!hw_verts) {
assert(0);
return;
}
/* Single routine to fetch vertices and emit HW verts.
*/
feme->translate->run_elts( feme->translate,
fetch_elts,
fetch_count,
draw->instance_id,
hw_verts );
if (0) {
unsigned i;
for (i = 0; i < fetch_count; i++) {
debug_printf("\n\nvertex %d:\n", i);
draw_dump_emitted_vertex( feme->vinfo,
(const uint8_t *)hw_verts + feme->vinfo->size * 4 * i );
}
}
draw->render->unmap_vertices( draw->render,
0,
(ushort)(fetch_count - 1) );
/* XXX: Draw arrays path to avoid re-emitting index list again and
* again.
*/
draw->render->draw_elements( draw->render,
draw_elts,
draw_count );
/* Done -- that was easy, wasn't it:
*/
draw->render->release_vertices( draw->render );
}
void
draw_bind_fragment_shader(struct draw_context *draw,
struct draw_fragment_shader *dfs)
{
draw_do_flush(draw, DRAW_FLUSH_STATE_CHANGE);
draw->fs.fragment_shader = dfs;
}
void draw_set_driver_clipping( struct draw_context *draw,
boolean bypass_clipping )
{
draw_do_flush( draw, DRAW_FLUSH_STATE_CHANGE );
draw->driver.bypass_clipping = bypass_clipping;
draw->bypass_clipping = draw->driver.bypass_clipping;
}
static void
fse_run(struct draw_pt_middle_end *middle,
const unsigned *fetch_elts,
unsigned fetch_count,
const ushort *draw_elts,
unsigned draw_count,
unsigned prim_flags )
{
struct fetch_shade_emit *fse = (struct fetch_shade_emit *)middle;
struct draw_context *draw = fse->draw;
void *hw_verts;
/* XXX: need to flush to get prim_vbuf.c to release its allocation??
*/
draw_do_flush( draw, DRAW_FLUSH_BACKEND );
if (!draw->render->allocate_vertices( draw->render,
(ushort)fse->key.output_stride,
(ushort)fetch_count ))
goto fail;
hw_verts = draw->render->map_vertices( draw->render );
if (!hw_verts)
goto fail;
/* Single routine to fetch vertices, run shader and emit HW verts.
*/
fse->active->run_elts( fse->active,
fetch_elts,
fetch_count,
hw_verts );
if (0) {
unsigned i;
for (i = 0; i < fetch_count; i++) {
debug_printf("\n\n%s vertex %d:\n", __FUNCTION__, i);
draw_dump_emitted_vertex( fse->vinfo,
(const uint8_t *)hw_verts +
fse->key.output_stride * i );
}
}
draw->render->unmap_vertices( draw->render, 0, (ushort)(fetch_count - 1) );
draw->render->draw_elements( draw->render,
draw_elts,
draw_count );
draw->render->release_vertices( draw->render );
return;
fail:
assert(0);
return;
}
/**
* Set the draw module's clipping state.
*/
void draw_set_clip_state( struct draw_context *draw,
const struct pipe_clip_state *clip )
{
draw_do_flush( draw, DRAW_FLUSH_STATE_CHANGE );
assert(clip->nr <= PIPE_MAX_CLIP_PLANES);
memcpy(&draw->plane[6], clip->ucp, clip->nr * sizeof(clip->ucp[0]));
draw->nr_planes = 6 + clip->nr;
}
static void fetch_emit_run_linear( struct draw_pt_middle_end *middle,
unsigned start,
unsigned count )
{
struct fetch_emit_middle_end *feme = (struct fetch_emit_middle_end *)middle;
struct draw_context *draw = feme->draw;
void *hw_verts;
/* XXX: need to flush to get prim_vbuf.c to release its allocation??
*/
draw_do_flush( draw, DRAW_FLUSH_BACKEND );
if (count >= UNDEFINED_VERTEX_ID)
goto fail;
if (!draw->render->allocate_vertices( draw->render,
(ushort)feme->translate->key.output_stride,
(ushort)count ))
goto fail;
hw_verts = draw->render->map_vertices( draw->render );
if (!hw_verts)
goto fail;
/* Single routine to fetch vertices and emit HW verts.
*/
feme->translate->run( feme->translate,
start,
count,
hw_verts );
if (0) {
unsigned i;
for (i = 0; i < count; i++) {
debug_printf("\n\nvertex %d:\n", i);
draw_dump_emitted_vertex( feme->vinfo,
(const uint8_t *)hw_verts + feme->vinfo->size * 4 * i );
}
}
draw->render->unmap_vertices( draw->render, 0, count - 1 );
/* XXX: Draw arrays path to avoid re-emitting index list again and
* again.
*/
draw->render->draw_arrays( draw->render, 0, count );
/* Done -- that was easy, wasn't it:
*/
draw->render->release_vertices( draw->render );
return;
fail:
assert(0);
return;
}
/**
* Register new primitive rasterization/rendering state.
* This causes the drawing pipeline to be rebuilt.
*/
void draw_set_rasterizer_state( struct draw_context *draw,
const struct pipe_rasterizer_state *raster )
{
draw_do_flush( draw, DRAW_FLUSH_STATE_CHANGE );
draw->rasterizer = raster;
draw->bypass_clipping =
((draw->rasterizer && draw->rasterizer->bypass_clipping) ||
draw->driver.bypass_clipping);
}
/* With a little more work, llvmpipe will be able to turn this off and
* do its own x/y clipping.
*
* Some hardware can turn off clipping altogether - in particular any
* hardware with a TNL unit can do its own clipping, even if it is
* relying on the draw module for some other reason.
*/
void draw_set_driver_clipping( struct draw_context *draw,
boolean bypass_clip_xy,
boolean bypass_clip_z )
{
draw_do_flush( draw, DRAW_FLUSH_STATE_CHANGE );
draw->driver.bypass_clip_xy = bypass_clip_xy;
draw->driver.bypass_clip_z = bypass_clip_z;
update_clip_flags(draw);
}
/**
* Register new primitive rasterization/rendering state.
* This causes the drawing pipeline to be rebuilt.
*/
void draw_set_rasterizer_state( struct draw_context *draw,
const struct pipe_rasterizer_state *raster,
void *rast_handle )
{
if (!draw->suspend_flushing) {
draw_do_flush( draw, DRAW_FLUSH_STATE_CHANGE );
draw->rasterizer = raster;
draw->rast_handle = rast_handle;
}
}
/**
* Draw vertex arrays
* This is the main entrypoint into the drawing module.
* \param prim one of PIPE_PRIM_x
* \param start index of first vertex to draw
* \param count number of vertices to draw
*/
void
draw_arrays(struct draw_context *draw, unsigned prim,
unsigned start, unsigned count)
{
unsigned reduced_prim = draw_pt_reduced_prim(prim);
if (reduced_prim != draw->reduced_prim) {
draw_do_flush( draw, DRAW_FLUSH_STATE_CHANGE );
draw->reduced_prim = reduced_prim;
}
/* drawing done here: */
draw_pt_arrays(draw, prim, start, count);
}
/* With a little more work, llvmpipe will be able to turn this off and
* do its own x/y clipping.
*
* Some hardware can turn off clipping altogether - in particular any
* hardware with a TNL unit can do its own clipping, even if it is
* relying on the draw module for some other reason.
* Setting bypass_clip_points to achieve d3d-style point clipping (the driver
* will need to do the "vp scissoring") _requires_ the driver to implement
* wide points / point sprites itself (points will still be clipped if rasterizer
* point_tri_clip isn't set). Only relevant if bypass_clip_xy isn't set.
*/
void draw_set_driver_clipping( struct draw_context *draw,
boolean bypass_clip_xy,
boolean bypass_clip_z,
boolean guard_band_xy,
boolean bypass_clip_points)
{
draw_do_flush( draw, DRAW_FLUSH_STATE_CHANGE );
draw->driver.bypass_clip_xy = bypass_clip_xy;
draw->driver.bypass_clip_z = bypass_clip_z;
draw->driver.guard_band_xy = guard_band_xy;
draw->driver.bypass_clip_points = bypass_clip_points;
draw_update_clip_flags(draw);
}
void
draw_set_vertex_elements(struct draw_context *draw,
unsigned count,
const struct pipe_vertex_element *elements)
{
assert(count <= PIPE_MAX_ATTRIBS);
/* We could improve this by only flushing the frontend and the fetch part
* of the middle. This would avoid recalculating the emit keys.*/
draw_do_flush( draw, DRAW_FLUSH_STATE_CHANGE );
memcpy(draw->pt.vertex_element, elements, count * sizeof(elements[0]));
draw->pt.nr_vertex_elements = count;
}
static boolean fetch_emit_run_linear_elts( struct draw_pt_middle_end *middle,
unsigned start,
unsigned count,
const ushort *draw_elts,
unsigned draw_count )
{
struct fetch_emit_middle_end *feme = (struct fetch_emit_middle_end *)middle;
struct draw_context *draw = feme->draw;
void *hw_verts;
/* XXX: need to flush to get prim_vbuf.c to release its allocation??
*/
draw_do_flush( draw, DRAW_FLUSH_BACKEND );
if (count >= UNDEFINED_VERTEX_ID)
return FALSE;
if (!draw->render->allocate_vertices( draw->render,
(ushort)feme->translate->key.output_stride,
(ushort)count ))
return FALSE;
hw_verts = draw->render->map_vertices( draw->render );
if (!hw_verts)
return FALSE;
/* Single routine to fetch vertices and emit HW verts.
*/
feme->translate->run( feme->translate,
start,
count,
draw->instance_id,
hw_verts );
draw->render->unmap_vertices( draw->render, 0, (ushort)(count - 1) );
/* XXX: Draw arrays path to avoid re-emitting index list again and
* again.
*/
draw->render->draw( draw->render,
draw_elts,
draw_count );
/* Done -- that was easy, wasn't it:
*/
draw->render->release_vertices( draw->render );
return TRUE;
}
void draw_bind_geometry_shader(struct draw_context *draw,
struct draw_geometry_shader *dgs)
{
draw_do_flush(draw, DRAW_FLUSH_STATE_CHANGE);
if (dgs) {
draw->gs.geometry_shader = dgs;
draw->gs.num_gs_outputs = dgs->info.num_outputs;
draw->gs.position_output = dgs->position_output;
draw_geometry_shader_prepare(dgs, draw);
}
else {
draw->gs.geometry_shader = NULL;
draw->gs.num_gs_outputs = 0;
}
}
/**
* Set the draw module's viewport state.
*/
void draw_set_viewport_state( struct draw_context *draw,
const struct pipe_viewport_state *viewport )
{
draw_do_flush( draw, DRAW_FLUSH_STATE_CHANGE );
draw->viewport = *viewport; /* struct copy */
draw->identity_viewport = (viewport->scale[0] == 1.0f &&
viewport->scale[1] == 1.0f &&
viewport->scale[2] == 1.0f &&
viewport->scale[3] == 1.0f &&
viewport->translate[0] == 0.0f &&
viewport->translate[1] == 0.0f &&
viewport->translate[2] == 0.0f &&
viewport->translate[3] == 0.0f);
draw_vs_set_viewport( draw, viewport );
}
void draw_pt_so_emit( struct pt_so_emit *emit,
const struct draw_vertex_info *input_verts,
const struct draw_prim_info *input_prims )
{
struct draw_context *draw = emit->draw;
struct vbuf_render *render = draw->render;
unsigned start, i;
if (!emit->has_so)
return;
if (!draw->so.num_targets)
return;
emit->emitted_vertices = 0;
emit->emitted_primitives = 0;
emit->generated_primitives = 0;
emit->input_vertex_stride = input_verts->stride;
if (emit->use_pre_clip_pos)
emit->pre_clip_pos = input_verts->verts->pre_clip_pos;
emit->inputs = (const float (*)[4])input_verts->verts->data;
/* XXX: need to flush to get prim_vbuf.c to release its allocation??*/
draw_do_flush( draw, DRAW_FLUSH_BACKEND );
for (start = i = 0; i < input_prims->primitive_count;
start += input_prims->primitive_lengths[i], i++)
{
unsigned count = input_prims->primitive_lengths[i];
if (input_prims->linear) {
so_run_linear(emit, input_prims, input_verts,
start, count);
} else {
so_run_elts(emit, input_prims, input_verts,
start, count);
}
}
render->set_stream_output_info(render,
emit->emitted_primitives,
emit->emitted_vertices,
emit->generated_primitives);
}
static boolean fse_run_linear_elts( struct draw_pt_middle_end *middle,
unsigned start,
unsigned count,
const ushort *draw_elts,
unsigned draw_count,
unsigned prim_flags )
{
struct fetch_shade_emit *fse = (struct fetch_shade_emit *)middle;
struct draw_context *draw = fse->draw;
char *hw_verts;
/* XXX: need to flush to get prim_vbuf.c to release its allocation??
*/
draw_do_flush( draw, DRAW_FLUSH_BACKEND );
if (!draw->render->allocate_vertices( draw->render,
(ushort)fse->key.output_stride,
(ushort)count ))
return FALSE;
hw_verts = draw->render->map_vertices( draw->render );
if (!hw_verts)
return FALSE;
/* Single routine to fetch vertices, run shader and emit HW verts.
* Clipping is done elsewhere -- either by the API or on hardware,
* or for some other reason not required...
*/
fse->active->run_linear( fse->active,
start, count,
hw_verts );
draw->render->draw_elements( draw->render,
draw_elts,
draw_count );
draw->render->unmap_vertices( draw->render, 0, (ushort)(count - 1) );
draw->render->release_vertices( draw->render );
return TRUE;
}
void
draw_set_sampler_views(struct draw_context *draw,
unsigned shader_stage,
struct pipe_sampler_view **views,
unsigned num)
{
unsigned i;
debug_assert(shader_stage < PIPE_SHADER_TYPES);
debug_assert(num <= PIPE_MAX_SHADER_SAMPLER_VIEWS);
draw_do_flush( draw, DRAW_FLUSH_STATE_CHANGE );
for (i = 0; i < num; ++i)
draw->sampler_views[shader_stage][i] = views[i];
for (i = num; i < PIPE_MAX_SHADER_SAMPLER_VIEWS; ++i)
draw->sampler_views[shader_stage][i] = NULL;
draw->num_sampler_views[shader_stage] = num;
}
void
draw_pt_emit_prepare(struct pt_emit *emit,
unsigned prim,
unsigned *max_vertices)
{
struct draw_context *draw = emit->draw;
const struct vertex_info *vinfo;
unsigned dst_offset;
struct translate_key hw_key;
unsigned i;
/* XXX: need to flush to get prim_vbuf.c to release its allocation??
*/
draw_do_flush( draw, DRAW_FLUSH_BACKEND );
/* XXX: may need to defensively reset this later on as clipping can
* clobber this state in the render backend.
*/
emit->prim = prim;
draw->render->set_primitive(draw->render, emit->prim);
/* Must do this after set_primitive() above:
*/
emit->vinfo = vinfo = draw->render->get_vertex_info(draw->render);
/* Translate from pipeline vertices to hw vertices.
*/
dst_offset = 0;
for (i = 0; i < vinfo->num_attribs; i++) {
unsigned emit_sz = 0;
unsigned src_buffer = 0;
unsigned output_format;
unsigned src_offset = (vinfo->attrib[i].src_index * 4 * sizeof(float) );
output_format = draw_translate_vinfo_format(vinfo->attrib[i].emit);
emit_sz = draw_translate_vinfo_size(vinfo->attrib[i].emit);
/* doesn't handle EMIT_OMIT */
assert(emit_sz != 0);
if (vinfo->attrib[i].emit == EMIT_1F_PSIZE) {
src_buffer = 1;
src_offset = 0;
}
hw_key.element[i].type = TRANSLATE_ELEMENT_NORMAL;
hw_key.element[i].input_format = PIPE_FORMAT_R32G32B32A32_FLOAT;
hw_key.element[i].input_buffer = src_buffer;
hw_key.element[i].input_offset = src_offset;
hw_key.element[i].instance_divisor = 0;
hw_key.element[i].output_format = output_format;
hw_key.element[i].output_offset = dst_offset;
dst_offset += emit_sz;
}
hw_key.nr_elements = vinfo->num_attribs;
hw_key.output_stride = vinfo->size * 4;
if (!emit->translate ||
translate_key_compare(&emit->translate->key, &hw_key) != 0) {
translate_key_sanitize(&hw_key);
emit->translate = translate_cache_find(emit->cache, &hw_key);
}
*max_vertices = (draw->render->max_vertex_buffer_bytes /
(vinfo->size * 4));
}
void
draw_pt_emit_linear(struct pt_emit *emit,
const struct draw_vertex_info *vert_info,
const struct draw_prim_info *prim_info)
{
const float (*vertex_data)[4] = (const float (*)[4])vert_info->verts->data;
unsigned stride = vert_info->stride;
unsigned count = vert_info->count;
struct draw_context *draw = emit->draw;
struct translate *translate = emit->translate;
struct vbuf_render *render = draw->render;
void *hw_verts;
unsigned start, i;
#if 0
debug_printf("Linear emit\n");
#endif
/* XXX: need to flush to get prim_vbuf.c to release its allocation??
*/
draw_do_flush( draw, DRAW_FLUSH_BACKEND );
/* XXX: and work out some way to coordinate the render primitive
* between vbuf.c and here...
*/
draw->render->set_primitive(draw->render, emit->prim);
if (!render->allocate_vertices(render,
(ushort)translate->key.output_stride,
(ushort)count))
goto fail;
hw_verts = render->map_vertices( render );
if (!hw_verts)
goto fail;
translate->set_buffer(translate, 0,
vertex_data, stride, count - 1);
translate->set_buffer(translate, 1,
&draw->rasterizer->point_size,
0, ~0);
translate->run(translate,
0,
count,
draw->start_instance,
draw->instance_id,
hw_verts);
if (0) {
unsigned i;
for (i = 0; i < count; i++) {
debug_printf("\n\n%s vertex %d:\n", __FUNCTION__, i);
draw_dump_emitted_vertex( emit->vinfo,
(const uint8_t *)hw_verts +
translate->key.output_stride * i );
}
}
render->unmap_vertices( render, 0, count - 1 );
for (start = i = 0;
i < prim_info->primitive_count;
start += prim_info->primitive_lengths[i], i++)
{
render->draw_arrays(render,
start,
prim_info->primitive_lengths[i]);
}
render->release_vertices(render);
return;
fail:
debug_warn_once("allocate or map of vertex buffer failed (out of memory?)");
return;
}
void
draw_pt_emit(struct pt_emit *emit,
const struct draw_vertex_info *vert_info,
const struct draw_prim_info *prim_info)
{
const float (*vertex_data)[4] = (const float (*)[4])vert_info->verts->data;
unsigned vertex_count = vert_info->count;
unsigned stride = vert_info->stride;
const ushort *elts = prim_info->elts;
struct draw_context *draw = emit->draw;
struct translate *translate = emit->translate;
struct vbuf_render *render = draw->render;
unsigned start, i;
void *hw_verts;
/* XXX: need to flush to get prim_vbuf.c to release its allocation??
*/
draw_do_flush( draw, DRAW_FLUSH_BACKEND );
if (vertex_count == 0)
return;
/* XXX: and work out some way to coordinate the render primitive
* between vbuf.c and here...
*/
draw->render->set_primitive(draw->render, emit->prim);
render->allocate_vertices(render,
(ushort)translate->key.output_stride,
(ushort)vertex_count);
hw_verts = render->map_vertices( render );
if (!hw_verts) {
debug_warn_once("map of vertex buffer failed (out of memory?)");
return;
}
translate->set_buffer(translate,
0,
vertex_data,
stride,
~0);
translate->set_buffer(translate,
1,
&draw->rasterizer->point_size,
0,
~0);
/* fetch/translate vertex attribs to fill hw_verts[] */
translate->run(translate,
0,
vertex_count,
draw->start_instance,
draw->instance_id,
hw_verts );
render->unmap_vertices(render, 0, vertex_count - 1);
for (start = i = 0;
i < prim_info->primitive_count;
start += prim_info->primitive_lengths[i], i++)
{
render->draw_elements(render,
elts + start,
prim_info->primitive_lengths[i]);
}
render->release_vertices(render);
}
void
draw_set_force_passthrough( struct draw_context *draw, boolean enable )
{
draw_do_flush( draw, DRAW_FLUSH_STATE_CHANGE );
draw->force_passthrough = enable;
}