static void fetch( struct pt_fetch *fetch,
const struct draw_fetch_info *fetch_info,
char *output)
{
if (fetch_info->linear) {
draw_pt_fetch_run_linear( fetch,
fetch_info->start,
fetch_info->count,
output );
}
else {
draw_pt_fetch_run( fetch,
fetch_info->elts,
fetch_info->count,
output );
}
}
static void fetch_pipeline_run( struct draw_pt_middle_end *middle,
const unsigned *fetch_elts,
unsigned fetch_count,
const ushort *draw_elts,
unsigned draw_count )
{
struct fetch_pipeline_middle_end *fpme = (struct fetch_pipeline_middle_end *)middle;
struct draw_context *draw = fpme->draw;
struct draw_vertex_shader *vshader = draw->vs.vertex_shader;
struct draw_geometry_shader *gshader = draw->gs.geometry_shader;
unsigned opt = fpme->opt;
unsigned alloc_count = align( fetch_count, 4 );
struct vertex_header *pipeline_verts =
(struct vertex_header *)MALLOC(fpme->vertex_size * alloc_count);
if (!pipeline_verts) {
/* Not much we can do here - just skip the rendering.
*/
assert(0);
return;
}
/* Fetch into our vertex buffer
*/
draw_pt_fetch_run( fpme->fetch,
fetch_elts,
fetch_count,
(char *)pipeline_verts );
/* Run the shader, note that this overwrites the data[] parts of
* the pipeline verts.
*/
if (opt & PT_SHADE)
{
vshader->run_linear(vshader,
(const float (*)[4])pipeline_verts->data,
( float (*)[4])pipeline_verts->data,
draw->pt.user.vs_constants,
fetch_count,
fpme->vertex_size,
fpme->vertex_size);
if (gshader)
draw_geometry_shader_run(gshader,
(const float (*)[4])pipeline_verts->data,
( float (*)[4])pipeline_verts->data,
draw->pt.user.gs_constants,
fetch_count,
fpme->vertex_size,
fpme->vertex_size);
}
if (draw_pt_post_vs_run( fpme->post_vs,
pipeline_verts,
fetch_count,
fpme->vertex_size ))
{
opt |= PT_PIPELINE;
}
/* Do we need to run the pipeline?
*/
if (opt & PT_PIPELINE) {
draw_pipeline_run( fpme->draw,
fpme->prim,
pipeline_verts,
fetch_count,
fpme->vertex_size,
draw_elts,
draw_count );
}
else {
draw_pt_emit( fpme->emit,
(const float (*)[4])pipeline_verts->data,
fetch_count,
fpme->vertex_size,
draw_elts,
draw_count );
}
FREE(pipeline_verts);
}
