static void
sp_vbuf_destroy(struct vbuf_render *vbr)
{
struct softpipe_vbuf_render *cvbr = softpipe_vbuf_render(vbr);
cvbr->softpipe->vbuf_render = NULL;
FREE(cvbr);
}
static void
sp_vbuf_release_vertices(struct vbuf_render *vbr)
{
#if 0
{
struct softpipe_vbuf_render *cvbr = softpipe_vbuf_render(vbr);
const struct vertex_info *info =
softpipe_get_vbuf_vertex_info(cvbr->softpipe);
const float *vtx = (const float *) cvbr->vertex_buffer;
uint i, j;
debug_printf("%s (vtx_size = %u, vtx_used = %u)\n",
__FUNCTION__, cvbr->vertex_size, cvbr->nr_vertices);
for (i = 0; i < cvbr->nr_vertices; i++) {
for (j = 0; j < info->num_attribs; j++) {
uint k;
switch (info->attrib[j].emit) {
case EMIT_4F: k = 4; break;
case EMIT_3F: k = 3; break;
case EMIT_2F: k = 2; break;
case EMIT_1F: k = 1; break;
default: assert(0);
}
debug_printf("Vert %u attr %u: ", i, j);
while (k-- > 0) {
debug_printf("%g ", vtx[0]);
vtx++;
}
debug_printf("\n");
}
}
}
#endif
/* keep the old allocation for next time */
}
static void
sp_vbuf_destroy(struct vbuf_render *vbr)
{
struct softpipe_vbuf_render *cvbr = softpipe_vbuf_render(vbr);
if (cvbr->vertex_buffer)
align_free(cvbr->vertex_buffer);
sp_setup_destroy_context(cvbr->setup);
FREE(cvbr);
}
/*
* FIXME: it is unclear if primitives_storage_needed (which is generally
* the same as pipe query num_primitives_generated) should increase
* if SO is disabled for d3d10, but for GL we definitely need to
* increase num_primitives_generated and this is only called for active
* SO. If it must not increase for d3d10 need to disambiguate the counters
* in the driver and do some work for getting correct values, if it should
* increase too should call this from outside streamout code.
*/
static void
sp_vbuf_so_info(struct vbuf_render *vbr, uint primitives, uint prim_generated)
{
struct softpipe_vbuf_render *cvbr = softpipe_vbuf_render(vbr);
struct softpipe_context *softpipe = cvbr->softpipe;
softpipe->so_stats.num_primitives_written += primitives;
softpipe->so_stats.primitives_storage_needed += prim_generated;
}
static void
sp_vbuf_unmap_vertices(struct vbuf_render *vbr,
ushort min_index,
ushort max_index )
{
struct softpipe_vbuf_render *cvbr = softpipe_vbuf_render(vbr);
assert( cvbr->vertex_buffer_size >= (max_index+1) * cvbr->vertex_size );
/* do nothing */
}
static void
sp_vbuf_set_primitive(struct vbuf_render *vbr, unsigned prim)
{
struct softpipe_vbuf_render *cvbr = softpipe_vbuf_render(vbr);
struct setup_context *setup_ctx = cvbr->setup;
sp_setup_prepare( setup_ctx );
cvbr->softpipe->reduced_prim = u_reduced_prim(prim);
cvbr->prim = prim;
}
static void
sp_vbuf_so_info(struct vbuf_render *vbr, uint primitives, uint vertices,
uint prim_generated)
{
struct softpipe_vbuf_render *cvbr = softpipe_vbuf_render(vbr);
struct softpipe_context *softpipe = cvbr->softpipe;
softpipe->so_stats.num_primitives_written += primitives;
softpipe->so_stats.primitives_storage_needed =
vertices * 4 /*sizeof(float|int32)*/ * 4 /*x,y,z,w*/;
softpipe->num_primitives_generated += prim_generated;
}
static boolean
sp_vbuf_set_primitive(struct vbuf_render *vbr, unsigned prim)
{
struct softpipe_vbuf_render *cvbr = softpipe_vbuf_render(vbr);
/* XXX: break this dependency - make setup_context live under
* softpipe, rename the old "setup" draw stage to something else.
*/
struct setup_context *setup_ctx = sp_draw_setup_context(cvbr->softpipe->setup);
setup_prepare( setup_ctx );
cvbr->prim = prim;
return TRUE;
}
static boolean
sp_vbuf_allocate_vertices(struct vbuf_render *vbr,
ushort vertex_size, ushort nr_vertices)
{
struct softpipe_vbuf_render *cvbr = softpipe_vbuf_render(vbr);
unsigned size = vertex_size * nr_vertices;
if (cvbr->vertex_buffer_size < size) {
align_free(cvbr->vertex_buffer);
cvbr->vertex_buffer = align_malloc(size, 16);
cvbr->vertex_buffer_size = size;
}
cvbr->vertex_size = vertex_size;
cvbr->nr_vertices = nr_vertices;
return cvbr->vertex_buffer != NULL;
}
static void
sp_vbuf_pipeline_statistics(
struct vbuf_render *vbr,
const struct pipe_query_data_pipeline_statistics *stats)
{
struct softpipe_vbuf_render *cvbr = softpipe_vbuf_render(vbr);
struct softpipe_context *softpipe = cvbr->softpipe;
softpipe->pipeline_statistics.ia_vertices +=
stats->ia_vertices;
softpipe->pipeline_statistics.ia_primitives +=
stats->ia_primitives;
softpipe->pipeline_statistics.vs_invocations +=
stats->vs_invocations;
softpipe->pipeline_statistics.gs_invocations +=
stats->gs_invocations;
softpipe->pipeline_statistics.gs_primitives +=
stats->gs_primitives;
softpipe->pipeline_statistics.c_invocations +=
stats->c_invocations;
}
/** This tells the draw module about our desired vertex layout */
static const struct vertex_info *
sp_vbuf_get_vertex_info(struct vbuf_render *vbr)
{
struct softpipe_vbuf_render *cvbr = softpipe_vbuf_render(vbr);
return softpipe_get_vbuf_vertex_info(cvbr->softpipe);
}
/**
* This function is hit when the draw module is working in pass-through mode.
* It's up to us to convert the vertex array into point/line/tri prims.
*/
static void
sp_vbuf_draw_arrays(struct vbuf_render *vbr, uint start, uint nr)
{
struct softpipe_vbuf_render *cvbr = softpipe_vbuf_render(vbr);
struct softpipe_context *softpipe = cvbr->softpipe;
struct setup_context *setup = cvbr->setup;
const unsigned stride = softpipe->vertex_info.size * sizeof(float);
const void *vertex_buffer =
(void *) get_vert(cvbr->vertex_buffer, start, stride);
const boolean flatshade_first = softpipe->rasterizer->flatshade_first;
unsigned i;
switch (cvbr->prim) {
case PIPE_PRIM_POINTS:
for (i = 0; i < nr; i++) {
sp_setup_point( setup,
get_vert(vertex_buffer, i-0, stride) );
}
break;
case PIPE_PRIM_LINES:
for (i = 1; i < nr; i += 2) {
sp_setup_line( setup,
get_vert(vertex_buffer, i-1, stride),
get_vert(vertex_buffer, i-0, stride) );
}
break;
case PIPE_PRIM_LINES_ADJACENCY:
for (i = 3; i < nr; i += 4) {
sp_setup_line( setup,
get_vert(vertex_buffer, i-2, stride),
get_vert(vertex_buffer, i-1, stride) );
}
break;
case PIPE_PRIM_LINE_STRIP:
for (i = 1; i < nr; i ++) {
sp_setup_line( setup,
get_vert(vertex_buffer, i-1, stride),
get_vert(vertex_buffer, i-0, stride) );
}
break;
case PIPE_PRIM_LINE_STRIP_ADJACENCY:
for (i = 3; i < nr; i++) {
sp_setup_line( setup,
get_vert(vertex_buffer, i-2, stride),
get_vert(vertex_buffer, i-1, stride) );
}
break;
case PIPE_PRIM_LINE_LOOP:
for (i = 1; i < nr; i ++) {
sp_setup_line( setup,
get_vert(vertex_buffer, i-1, stride),
get_vert(vertex_buffer, i-0, stride) );
}
if (nr) {
sp_setup_line( setup,
get_vert(vertex_buffer, nr-1, stride),
get_vert(vertex_buffer, 0, stride) );
}
break;
case PIPE_PRIM_TRIANGLES:
for (i = 2; i < nr; i += 3) {
sp_setup_tri( setup,
get_vert(vertex_buffer, i-2, stride),
get_vert(vertex_buffer, i-1, stride),
get_vert(vertex_buffer, i-0, stride) );
}
break;
case PIPE_PRIM_TRIANGLES_ADJACENCY:
for (i = 5; i < nr; i += 6) {
sp_setup_tri( setup,
get_vert(vertex_buffer, i-5, stride),
get_vert(vertex_buffer, i-3, stride),
get_vert(vertex_buffer, i-1, stride) );
}
break;
case PIPE_PRIM_TRIANGLE_STRIP:
if (flatshade_first) {
for (i = 2; i < nr; i++) {
/* emit first triangle vertex as first triangle vertex */
sp_setup_tri( setup,
get_vert(vertex_buffer, i-2, stride),
get_vert(vertex_buffer, i+(i&1)-1, stride),
get_vert(vertex_buffer, i-(i&1), stride) );
}
}
else {
for (i = 2; i < nr; i++) {
/* emit last triangle vertex as last triangle vertex */
sp_setup_tri( setup,
get_vert(vertex_buffer, i+(i&1)-2, stride),
get_vert(vertex_buffer, i-(i&1)-1, stride),
get_vert(vertex_buffer, i-0, stride) );
}
}
break;
case PIPE_PRIM_TRIANGLE_STRIP_ADJACENCY:
if (flatshade_first) {
for (i = 5; i < nr; i += 2) {
/* emit first triangle vertex as first triangle vertex */
sp_setup_tri( setup,
get_vert(vertex_buffer, i-5, stride),
get_vert(vertex_buffer, i+(i&1)*2-3, stride),
get_vert(vertex_buffer, i-(i&1)*2-1, stride) );
}
}
else {
for (i = 5; i < nr; i += 2) {
/* emit last triangle vertex as last triangle vertex */
sp_setup_tri( setup,
get_vert(vertex_buffer, i+(i&1)*2-5, stride),
get_vert(vertex_buffer, i-(i&1)*2-3, stride),
get_vert(vertex_buffer, i-1, stride) );
}
}
break;
case PIPE_PRIM_TRIANGLE_FAN:
if (flatshade_first) {
for (i = 2; i < nr; i += 1) {
/* emit first non-spoke vertex as first vertex */
sp_setup_tri( setup,
get_vert(vertex_buffer, i-1, stride),
get_vert(vertex_buffer, i-0, stride),
get_vert(vertex_buffer, 0, stride) );
}
}
else {
for (i = 2; i < nr; i += 1) {
/* emit last non-spoke vertex as last vertex */
sp_setup_tri( setup,
get_vert(vertex_buffer, 0, stride),
get_vert(vertex_buffer, i-1, stride),
get_vert(vertex_buffer, i-0, stride) );
}
}
break;
case PIPE_PRIM_QUADS:
/* GL quads don't follow provoking vertex convention */
if (flatshade_first) {
/* emit last quad vertex as first triangle vertex */
for (i = 3; i < nr; i += 4) {
sp_setup_tri( setup,
get_vert(vertex_buffer, i-0, stride),
get_vert(vertex_buffer, i-3, stride),
get_vert(vertex_buffer, i-2, stride) );
sp_setup_tri( setup,
get_vert(vertex_buffer, i-0, stride),
get_vert(vertex_buffer, i-2, stride),
get_vert(vertex_buffer, i-1, stride) );
}
}
else {
/* emit last quad vertex as last triangle vertex */
for (i = 3; i < nr; i += 4) {
sp_setup_tri( setup,
get_vert(vertex_buffer, i-3, stride),
get_vert(vertex_buffer, i-2, stride),
get_vert(vertex_buffer, i-0, stride) );
sp_setup_tri( setup,
get_vert(vertex_buffer, i-2, stride),
get_vert(vertex_buffer, i-1, stride),
get_vert(vertex_buffer, i-0, stride) );
}
}
break;
case PIPE_PRIM_QUAD_STRIP:
/* GL quad strips don't follow provoking vertex convention */
if (flatshade_first) {
/* emit last quad vertex as first triangle vertex */
for (i = 3; i < nr; i += 2) {
sp_setup_tri( setup,
get_vert(vertex_buffer, i-0, stride),
get_vert(vertex_buffer, i-3, stride),
get_vert(vertex_buffer, i-2, stride) );
sp_setup_tri( setup,
get_vert(vertex_buffer, i-0, stride),
get_vert(vertex_buffer, i-1, stride),
get_vert(vertex_buffer, i-3, stride) );
}
}
else {
/* emit last quad vertex as last triangle vertex */
for (i = 3; i < nr; i += 2) {
sp_setup_tri( setup,
get_vert(vertex_buffer, i-3, stride),
get_vert(vertex_buffer, i-2, stride),
get_vert(vertex_buffer, i-0, stride) );
sp_setup_tri( setup,
get_vert(vertex_buffer, i-1, stride),
get_vert(vertex_buffer, i-3, stride),
get_vert(vertex_buffer, i-0, stride) );
}
}
break;
case PIPE_PRIM_POLYGON:
/* Almost same as tri fan but the _first_ vertex specifies the flat
* shading color.
*/
if (flatshade_first) {
/* emit first polygon vertex as first triangle vertex */
for (i = 2; i < nr; i += 1) {
sp_setup_tri( setup,
get_vert(vertex_buffer, 0, stride),
get_vert(vertex_buffer, i-1, stride),
get_vert(vertex_buffer, i-0, stride) );
}
}
else {
/* emit first polygon vertex as last triangle vertex */
for (i = 2; i < nr; i += 1) {
sp_setup_tri( setup,
get_vert(vertex_buffer, i-1, stride),
get_vert(vertex_buffer, i-0, stride),
get_vert(vertex_buffer, 0, stride) );
}
}
break;
default:
assert(0);
}
}
static void *
sp_vbuf_map_vertices(struct vbuf_render *vbr)
{
struct softpipe_vbuf_render *cvbr = softpipe_vbuf_render(vbr);
return cvbr->vertex_buffer;
}
/**
* This function is hit when the draw module is working in pass-through mode.
* It's up to us to convert the vertex array into point/line/tri prims.
*/
static void
sp_vbuf_draw_arrays(struct vbuf_render *vbr, uint start, uint nr)
{
struct softpipe_vbuf_render *cvbr = softpipe_vbuf_render(vbr);
struct softpipe_context *softpipe = cvbr->softpipe;
const unsigned stride = softpipe->vertex_info_vbuf.size * sizeof(float);
const void *vertex_buffer =
(void *) get_vert(cvbr->vertex_buffer, start, stride);
unsigned i;
/* XXX: break this dependency - make setup_context live under
* softpipe, rename the old "setup" draw stage to something else.
*/
struct draw_stage *setup = softpipe->setup;
struct setup_context *setup_ctx = sp_draw_setup_context(setup);
switch (cvbr->prim) {
case PIPE_PRIM_POINTS:
for (i = 0; i < nr; i++) {
setup_point( setup_ctx,
get_vert(vertex_buffer, i-0, stride) );
}
break;
case PIPE_PRIM_LINES:
for (i = 1; i < nr; i += 2) {
setup_line( setup_ctx,
get_vert(vertex_buffer, i-1, stride),
get_vert(vertex_buffer, i-0, stride) );
}
break;
case PIPE_PRIM_LINE_STRIP:
for (i = 1; i < nr; i ++) {
setup_line( setup_ctx,
get_vert(vertex_buffer, i-1, stride),
get_vert(vertex_buffer, i-0, stride) );
}
break;
case PIPE_PRIM_LINE_LOOP:
for (i = 1; i < nr; i ++) {
setup_line( setup_ctx,
get_vert(vertex_buffer, i-1, stride),
get_vert(vertex_buffer, i-0, stride) );
}
if (nr) {
setup_line( setup_ctx,
get_vert(vertex_buffer, nr-1, stride),
get_vert(vertex_buffer, 0, stride) );
}
break;
case PIPE_PRIM_TRIANGLES:
for (i = 2; i < nr; i += 3) {
if (softpipe->rasterizer->flatshade_first) {
setup_tri( setup_ctx,
get_vert(vertex_buffer, i-1, stride),
get_vert(vertex_buffer, i-0, stride),
get_vert(vertex_buffer, i-2, stride) );
}
else {
setup_tri( setup_ctx,
get_vert(vertex_buffer, i-2, stride),
get_vert(vertex_buffer, i-1, stride),
get_vert(vertex_buffer, i-0, stride) );
}
}
break;
case PIPE_PRIM_TRIANGLE_STRIP:
for (i = 2; i < nr; i++) {
if (softpipe->rasterizer->flatshade_first) {
setup_tri( setup_ctx,
get_vert(vertex_buffer, i+(i&1)-1, stride),
get_vert(vertex_buffer, i-(i&1), stride),
get_vert(vertex_buffer, i-2, stride) );
}
else {
setup_tri( setup_ctx,
get_vert(vertex_buffer, i+(i&1)-2, stride),
get_vert(vertex_buffer, i-(i&1)-1, stride),
get_vert(vertex_buffer, i-0, stride) );
}
}
break;
case PIPE_PRIM_TRIANGLE_FAN:
for (i = 2; i < nr; i += 1) {
if (softpipe->rasterizer->flatshade_first) {
setup_tri( setup_ctx,
get_vert(vertex_buffer, i-0, stride),
get_vert(vertex_buffer, 0, stride),
get_vert(vertex_buffer, i-1, stride) );
}
else {
setup_tri( setup_ctx,
get_vert(vertex_buffer, 0, stride),
get_vert(vertex_buffer, i-1, stride),
get_vert(vertex_buffer, i-0, stride) );
}
}
break;
case PIPE_PRIM_QUADS:
for (i = 3; i < nr; i += 4) {
if (softpipe->rasterizer->flatshade_first) {
setup_tri( setup_ctx,
get_vert(vertex_buffer, i-2, stride),
get_vert(vertex_buffer, i-1, stride),
get_vert(vertex_buffer, i-3, stride) );
setup_tri( setup_ctx,
get_vert(vertex_buffer, i-1, stride),
get_vert(vertex_buffer, i-0, stride),
get_vert(vertex_buffer, i-3, stride) );
}
else {
setup_tri( setup_ctx,
get_vert(vertex_buffer, i-3, stride),
get_vert(vertex_buffer, i-2, stride),
get_vert(vertex_buffer, i-0, stride) );
setup_tri( setup_ctx,
get_vert(vertex_buffer, i-2, stride),
get_vert(vertex_buffer, i-1, stride),
get_vert(vertex_buffer, i-0, stride) );
}
}
break;
case PIPE_PRIM_QUAD_STRIP:
for (i = 3; i < nr; i += 2) {
if (softpipe->rasterizer->flatshade_first) {
setup_tri( setup_ctx,
get_vert(vertex_buffer, i-0, stride),
get_vert(vertex_buffer, i-1, stride),
get_vert(vertex_buffer, i-3, stride) );
setup_tri( setup_ctx,
get_vert(vertex_buffer, i-2, stride),
get_vert(vertex_buffer, i-0, stride),
get_vert(vertex_buffer, i-3, stride) );
}
else {
setup_tri( setup_ctx,
get_vert(vertex_buffer, i-3, stride),
get_vert(vertex_buffer, i-2, stride),
get_vert(vertex_buffer, i-0, stride) );
setup_tri( setup_ctx,
get_vert(vertex_buffer, i-1, stride),
get_vert(vertex_buffer, i-3, stride),
get_vert(vertex_buffer, i-0, stride) );
}
}
break;
case PIPE_PRIM_POLYGON:
/* Almost same as tri fan but the _first_ vertex specifies the flat
* shading color. Note that the first polygon vertex is passed as
* the last triangle vertex here.
* flatshade_first state makes no difference.
*/
for (i = 2; i < nr; i += 1) {
setup_tri( setup_ctx,
get_vert(vertex_buffer, i-1, stride),
get_vert(vertex_buffer, i-0, stride),
get_vert(vertex_buffer, 0, stride) );
}
break;
default:
assert(0);
}
}
/**
* draw elements / indexed primitives
*/
static void
sp_vbuf_draw(struct vbuf_render *vbr, const ushort *indices, uint nr)
{
struct softpipe_vbuf_render *cvbr = softpipe_vbuf_render(vbr);
struct softpipe_context *softpipe = cvbr->softpipe;
const unsigned stride = softpipe->vertex_info_vbuf.size * sizeof(float);
const void *vertex_buffer = cvbr->vertex_buffer;
unsigned i;
/* XXX: break this dependency - make setup_context live under
* softpipe, rename the old "setup" draw stage to something else.
*/
struct draw_stage *setup = softpipe->setup;
struct setup_context *setup_ctx = sp_draw_setup_context(setup);
switch (cvbr->prim) {
case PIPE_PRIM_POINTS:
for (i = 0; i < nr; i++) {
setup_point( setup_ctx,
get_vert(vertex_buffer, indices[i-0], stride) );
}
break;
case PIPE_PRIM_LINES:
for (i = 1; i < nr; i += 2) {
setup_line( setup_ctx,
get_vert(vertex_buffer, indices[i-1], stride),
get_vert(vertex_buffer, indices[i-0], stride) );
}
break;
case PIPE_PRIM_LINE_STRIP:
for (i = 1; i < nr; i ++) {
setup_line( setup_ctx,
get_vert(vertex_buffer, indices[i-1], stride),
get_vert(vertex_buffer, indices[i-0], stride) );
}
break;
case PIPE_PRIM_LINE_LOOP:
for (i = 1; i < nr; i ++) {
setup_line( setup_ctx,
get_vert(vertex_buffer, indices[i-1], stride),
get_vert(vertex_buffer, indices[i-0], stride) );
}
if (nr) {
setup_line( setup_ctx,
get_vert(vertex_buffer, indices[nr-1], stride),
get_vert(vertex_buffer, indices[0], stride) );
}
break;
case PIPE_PRIM_TRIANGLES:
for (i = 2; i < nr; i += 3) {
if (softpipe->rasterizer->flatshade_first) {
setup_tri( setup_ctx,
get_vert(vertex_buffer, indices[i-1], stride),
get_vert(vertex_buffer, indices[i-0], stride),
get_vert(vertex_buffer, indices[i-2], stride) );
}
else {
setup_tri( setup_ctx,
get_vert(vertex_buffer, indices[i-2], stride),
get_vert(vertex_buffer, indices[i-1], stride),
get_vert(vertex_buffer, indices[i-0], stride) );
}
}
break;
case PIPE_PRIM_TRIANGLE_STRIP:
for (i = 2; i < nr; i += 1) {
if (softpipe->rasterizer->flatshade_first) {
setup_tri( setup_ctx,
get_vert(vertex_buffer, indices[i+(i&1)-1], stride),
get_vert(vertex_buffer, indices[i-(i&1)], stride),
get_vert(vertex_buffer, indices[i-2], stride) );
}
else {
setup_tri( setup_ctx,
get_vert(vertex_buffer, indices[i+(i&1)-2], stride),
get_vert(vertex_buffer, indices[i-(i&1)-1], stride),
get_vert(vertex_buffer, indices[i-0], stride) );
}
}
break;
case PIPE_PRIM_TRIANGLE_FAN:
for (i = 2; i < nr; i += 1) {
if (softpipe->rasterizer->flatshade_first) {
setup_tri( setup_ctx,
get_vert(vertex_buffer, indices[i-0], stride),
get_vert(vertex_buffer, indices[0], stride),
get_vert(vertex_buffer, indices[i-1], stride) );
}
else {
setup_tri( setup_ctx,
get_vert(vertex_buffer, indices[0], stride),
get_vert(vertex_buffer, indices[i-1], stride),
get_vert(vertex_buffer, indices[i-0], stride) );
}
}
break;
case PIPE_PRIM_QUADS:
for (i = 3; i < nr; i += 4) {
if (softpipe->rasterizer->flatshade_first) {
setup_tri( setup_ctx,
get_vert(vertex_buffer, indices[i-2], stride),
get_vert(vertex_buffer, indices[i-1], stride),
get_vert(vertex_buffer, indices[i-3], stride) );
setup_tri( setup_ctx,
get_vert(vertex_buffer, indices[i-1], stride),
get_vert(vertex_buffer, indices[i-0], stride),
get_vert(vertex_buffer, indices[i-3], stride) );
}
else {
setup_tri( setup_ctx,
get_vert(vertex_buffer, indices[i-3], stride),
get_vert(vertex_buffer, indices[i-2], stride),
get_vert(vertex_buffer, indices[i-0], stride) );
setup_tri( setup_ctx,
get_vert(vertex_buffer, indices[i-2], stride),
get_vert(vertex_buffer, indices[i-1], stride),
get_vert(vertex_buffer, indices[i-0], stride) );
}
}
break;
case PIPE_PRIM_QUAD_STRIP:
for (i = 3; i < nr; i += 2) {
if (softpipe->rasterizer->flatshade_first) {
setup_tri( setup_ctx,
get_vert(vertex_buffer, indices[i-0], stride),
get_vert(vertex_buffer, indices[i-1], stride),
get_vert(vertex_buffer, indices[i-3], stride));
setup_tri( setup_ctx,
get_vert(vertex_buffer, indices[i-2], stride),
get_vert(vertex_buffer, indices[i-0], stride),
get_vert(vertex_buffer, indices[i-3], stride) );
}
else {
setup_tri( setup_ctx,
get_vert(vertex_buffer, indices[i-3], stride),
get_vert(vertex_buffer, indices[i-2], stride),
get_vert(vertex_buffer, indices[i-0], stride) );
setup_tri( setup_ctx,
get_vert(vertex_buffer, indices[i-1], stride),
get_vert(vertex_buffer, indices[i-3], stride),
get_vert(vertex_buffer, indices[i-0], stride) );
}
}
break;
case PIPE_PRIM_POLYGON:
/* Almost same as tri fan but the _first_ vertex specifies the flat
* shading color. Note that the first polygon vertex is passed as
* the last triangle vertex here.
* flatshade_first state makes no difference.
*/
for (i = 2; i < nr; i += 1) {
setup_tri( setup_ctx,
get_vert(vertex_buffer, indices[i-0], stride),
get_vert(vertex_buffer, indices[i-1], stride),
get_vert(vertex_buffer, indices[0], stride) );
}
break;
default:
assert(0);
}
/* XXX: why are we calling this??? If we had to call something, it
* would be a function in sp_setup.c:
*/
sp_draw_flush( setup );
}
/**
* draw elements / indexed primitives
*/
static void
sp_vbuf_draw(struct vbuf_render *vbr, const ushort *indices, uint nr)
{
struct softpipe_vbuf_render *cvbr = softpipe_vbuf_render(vbr);
struct softpipe_context *softpipe = cvbr->softpipe;
const unsigned stride = softpipe->vertex_info_vbuf.size * sizeof(float);
const void *vertex_buffer = cvbr->vertex_buffer;
unsigned i;
/* XXX: break this dependency - make setup_context live under
* softpipe, rename the old "setup" draw stage to something else.
*/
struct draw_stage *setup = softpipe->setup;
struct setup_context *setup_ctx = sp_draw_setup_context(setup);
switch (cvbr->prim) {
case PIPE_PRIM_POINTS:
for (i = 0; i < nr; i++) {
setup_point( setup_ctx,
get_vert(vertex_buffer, indices[i-0], stride) );
}
break;
case PIPE_PRIM_LINES:
for (i = 1; i < nr; i += 2) {
setup_line( setup_ctx,
get_vert(vertex_buffer, indices[i-1], stride),
get_vert(vertex_buffer, indices[i-0], stride) );
}
break;
case PIPE_PRIM_LINE_STRIP:
for (i = 1; i < nr; i ++) {
setup_line( setup_ctx,
get_vert(vertex_buffer, indices[i-1], stride),
get_vert(vertex_buffer, indices[i-0], stride) );
}
break;
case PIPE_PRIM_LINE_LOOP:
for (i = 1; i < nr; i ++) {
setup_line( setup_ctx,
get_vert(vertex_buffer, indices[i-1], stride),
get_vert(vertex_buffer, indices[i-0], stride) );
}
if (nr) {
setup_line( setup_ctx,
get_vert(vertex_buffer, indices[nr-1], stride),
get_vert(vertex_buffer, indices[0], stride) );
}
break;
case PIPE_PRIM_TRIANGLES:
for (i = 2; i < nr; i += 3) {
setup_tri( setup_ctx,
get_vert(vertex_buffer, indices[i-2], stride),
get_vert(vertex_buffer, indices[i-1], stride),
get_vert(vertex_buffer, indices[i-0], stride));
}
break;
case PIPE_PRIM_TRIANGLE_STRIP:
for (i = 2; i < nr; i += 1) {
setup_tri( setup_ctx,
get_vert(vertex_buffer, indices[i+(i&1)-2], stride),
get_vert(vertex_buffer, indices[i-(i&1)-1], stride),
get_vert(vertex_buffer, indices[i-0], stride));
}
break;
case PIPE_PRIM_TRIANGLE_FAN:
for (i = 2; i < nr; i += 1) {
setup_tri( setup_ctx,
get_vert(vertex_buffer, indices[0], stride),
get_vert(vertex_buffer, indices[i-1], stride),
get_vert(vertex_buffer, indices[i-0], stride));
}
break;
case PIPE_PRIM_QUADS:
for (i = 3; i < nr; i += 4) {
setup_tri( setup_ctx,
get_vert(vertex_buffer, indices[i-3], stride),
get_vert(vertex_buffer, indices[i-2], stride),
get_vert(vertex_buffer, indices[i-0], stride));
setup_tri( setup_ctx,
get_vert(vertex_buffer, indices[i-2], stride),
get_vert(vertex_buffer, indices[i-1], stride),
get_vert(vertex_buffer, indices[i-0], stride));
}
break;
case PIPE_PRIM_QUAD_STRIP:
for (i = 3; i < nr; i += 2) {
setup_tri( setup_ctx,
get_vert(vertex_buffer, indices[i-3], stride),
get_vert(vertex_buffer, indices[i-2], stride),
get_vert(vertex_buffer, indices[i-0], stride));
setup_tri( setup_ctx,
get_vert(vertex_buffer, indices[i-1], stride),
get_vert(vertex_buffer, indices[i-3], stride),
get_vert(vertex_buffer, indices[i-0], stride));
}
break;
case PIPE_PRIM_POLYGON:
for (i = 2; i < nr; i += 1) {
setup_tri( setup_ctx,
get_vert(vertex_buffer, indices[0-1], stride),
get_vert(vertex_buffer, indices[i-0], stride),
get_vert(vertex_buffer, indices[0], stride));
}
break;
default:
assert(0);
}
/* XXX: why are we calling this??? If we had to call something, it
* would be a function in sp_setup.c:
*/
sp_draw_flush( setup );
}
