*
**************************************************************************/
-#include "draw/draw_context.h"
#include "draw/draw_private.h"
+#include "draw/draw_vs.h"
+#include "draw/draw_gs.h"
+#include "draw/draw_context.h"
#include "draw/draw_vbuf.h"
#include "draw/draw_vertex.h"
#include "draw/draw_pt.h"
+#include "pipe/p_state.h"
+
#include "util/u_math.h"
#include "util/u_memory.h"
struct pt_so_emit {
struct draw_context *draw;
- void *buffers[PIPE_MAX_SO_BUFFERS];
-
unsigned input_vertex_stride;
const float (*inputs)[4];
-
+ const float *pre_clip_pos;
boolean has_so;
-
- boolean single_buffer;
-
+ boolean use_pre_clip_pos;
+ int pos_idx;
unsigned emitted_primitives;
- unsigned emitted_vertices;
+ unsigned generated_primitives;
};
+static const struct pipe_stream_output_info *
+draw_so_info(const struct draw_context *draw)
+{
+ const struct pipe_stream_output_info *state = NULL;
+
+ if (draw->gs.geometry_shader) {
+ state = &draw->gs.geometry_shader->state.stream_output;
+ } else {
+ state = &draw->vs.vertex_shader->state.stream_output;
+ }
+
+ return state;
+}
+
+static inline boolean
+draw_has_so(const struct draw_context *draw)
+{
+ const struct pipe_stream_output_info *state = draw_so_info(draw);
+
+ if (state && state->num_outputs > 0)
+ return TRUE;
-void draw_pt_so_emit_prepare(struct pt_so_emit *emit)
+ return FALSE;
+}
+
+void draw_pt_so_emit_prepare(struct pt_so_emit *emit, boolean use_pre_clip_pos)
{
struct draw_context *draw = emit->draw;
- emit->has_so = (draw->so.state.num_outputs > 0);
+ 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_buffers; ++i) {
- if (draw->so.buffers[i]) {
+ for (i = 0; i < draw->so.num_targets; ++i) {
+ if (draw->so.targets[i]) {
has_valid_buffer = TRUE;
break;
}
draw_do_flush( draw, DRAW_FLUSH_BACKEND );
}
-static boolean
-is_component_writable(unsigned mask,
- unsigned compo)
-{
- switch (mask) {
- case TGSI_WRITEMASK_NONE:
- return FALSE;
- case TGSI_WRITEMASK_X:
- return compo == 0;
- case TGSI_WRITEMASK_Y:
- return compo == 1;
- case TGSI_WRITEMASK_XY:
- return compo == 0 || compo == 1;
- case TGSI_WRITEMASK_Z:
- return compo == 2;
- case TGSI_WRITEMASK_XZ:
- return compo == 0 || compo == 2;
- case TGSI_WRITEMASK_YZ:
- return compo == 1 || compo == 2;
- case TGSI_WRITEMASK_XYZ:
- return compo == 0 || compo == 1 || compo == 2;
- case TGSI_WRITEMASK_W:
- return compo == 3;
- case TGSI_WRITEMASK_XW:
- return compo == 0 || compo == 3;
- case TGSI_WRITEMASK_YW:
- return compo == 1 || compo == 3;
- case TGSI_WRITEMASK_XYW:
- return compo == 0 || compo == 1 || compo == 3;
- case TGSI_WRITEMASK_ZW:
- return compo == 2 || compo == 3;
- case TGSI_WRITEMASK_XZW:
- return compo == 0 || compo == 1 || compo == 3;
- case TGSI_WRITEMASK_YZW:
- return compo == 1 || compo == 2 || compo == 4;
- case TGSI_WRITEMASK_XYZW:
- return compo < 4;
- default:
- debug_assert(!"Unknown writemask in stream out");
- return compo < 4;
- }
-}
-
static void so_emit_prim(struct pt_so_emit *so,
unsigned *indices,
unsigned num_vertices)
unsigned input_vertex_stride = so->input_vertex_stride;
struct draw_context *draw = so->draw;
const float (*input_ptr)[4];
- const struct pipe_stream_output_state *state =
- &draw->so.state;
- float **buffer = 0;
+ const float *pcp_ptr = NULL;
+ const struct pipe_stream_output_info *state = draw_so_info(draw);
+ float *buffer;
+ int buffer_total_bytes[PIPE_MAX_SO_BUFFERS];
+ boolean buffer_written[PIPE_MAX_SO_BUFFERS] = {0};
input_ptr = so->inputs;
+ if (so->use_pre_clip_pos)
+ pcp_ptr = so->pre_clip_pos;
+
+ ++so->generated_primitives;
+
+ for (i = 0; i < draw->so.num_targets; i++) {
+ struct draw_so_target *target = draw->so.targets[i];
+ if (target) {
+ buffer_total_bytes[i] = target->internal_offset;
+ } else {
+ buffer_total_bytes[i] = 0;
+ }
+ }
+
+ /* check have we space to emit prim first - if not don't do anything */
+ for (i = 0; i < num_vertices; ++i) {
+ unsigned ob;
+ for (slot = 0; slot < state->num_outputs; ++slot) {
+ unsigned num_comps = state->output[slot].num_components;
+ int ob = state->output[slot].output_buffer;
+ unsigned dst_offset = state->output[slot].dst_offset * sizeof(float);
+ unsigned write_size = num_comps * sizeof(float);
+ /* If a buffer is missing then that's equivalent to
+ * an overflow */
+ if (!draw->so.targets[ob]) {
+ return;
+ }
+ if ((buffer_total_bytes[ob] + write_size + dst_offset) >
+ draw->so.targets[ob]->target.buffer_size) {
+ return;
+ }
+ }
+ for (ob = 0; ob < draw->so.num_targets; ++ob) {
+ buffer_total_bytes[ob] += state->stride[ob] * sizeof(float);
+ }
+ }
for (i = 0; i < num_vertices; ++i) {
const float (*input)[4];
- unsigned total_written_compos = 0;
- /*debug_printf("%d) vertex index = %d (prim idx = %d)\n", i, indices[i], prim_idx);*/
+ const float *pre_clip_pos = NULL;
+ unsigned ob;
+
input = (const float (*)[4])(
(const char *)input_ptr + (indices[i] * input_vertex_stride));
+
+ if (pcp_ptr)
+ pre_clip_pos = (const float *)(
+ (const char *)pcp_ptr + (indices[i] * input_vertex_stride));
+
for (slot = 0; slot < state->num_outputs; ++slot) {
- unsigned idx = state->register_index[slot];
- unsigned writemask = state->register_mask[slot];
- unsigned written_compos = 0;
- unsigned compo;
-
- buffer = (float**)&so->buffers[state->output_buffer[slot]];
-
- /*debug_printf("\tSlot = %d, vs_slot = %d, idx = %d:\n",
- slot, vs_slot, idx);*/
-#if 1
- assert(!util_is_inf_or_nan(input[idx][0]));
- assert(!util_is_inf_or_nan(input[idx][1]));
- assert(!util_is_inf_or_nan(input[idx][2]));
- assert(!util_is_inf_or_nan(input[idx][3]));
-#endif
- for (compo = 0; compo < 4; ++compo) {
- if (is_component_writable(writemask, compo)) {
- float *buf = *buffer;
- buf[written_compos++] = input[idx][compo];
+ unsigned idx = state->output[slot].register_index;
+ unsigned start_comp = state->output[slot].start_component;
+ unsigned num_comps = state->output[slot].num_components;
+
+ ob = state->output[slot].output_buffer;
+ buffer_written[ob] = TRUE;
+
+ buffer = (float *)((char *)draw->so.targets[ob]->mapping +
+ draw->so.targets[ob]->target.buffer_offset +
+ draw->so.targets[ob]->internal_offset) +
+ state->output[slot].dst_offset;
+
+ if (idx == so->pos_idx && pcp_ptr)
+ memcpy(buffer, &pre_clip_pos[start_comp],
+ num_comps * sizeof(float));
+ else
+ memcpy(buffer, &input[idx][start_comp],
+ num_comps * sizeof(float));
+#if 0
+ {
+ int j;
+ debug_printf("VERT[%d], offset = %d, slot[%d] sc = %d, num_c = %d, idx = %d = [",
+ i,
+ draw->so.targets[ob]->internal_offset,
+ slot, start_comp, num_comps, idx);
+ for (j = 0; j < num_comps; ++j) {
+ unsigned *ubuffer = (unsigned*)buffer;
+ debug_printf("%d (0x%x), ", ubuffer[j], ubuffer[j]);
}
+ debug_printf("]\n");
}
-#if 0
- debug_printf("\t\t(writemask = %d)%f %f %f %f\n",
- writemask,
- input[idx][0],
- input[idx][1],
- input[idx][2],
- input[idx][3]);
#endif
- *buffer += written_compos;
- total_written_compos += written_compos;
}
- if (so->single_buffer) {
- int stride = (int)state->stride -
- sizeof(float) * total_written_compos;
-
- debug_assert(stride >= 0);
- *buffer = (float*) (((char*)*buffer) + stride);
+ for (ob = 0; ob < draw->so.num_targets; ++ob) {
+ struct draw_so_target *target = draw->so.targets[ob];
+ if (target && buffer_written[ob]) {
+ target->internal_offset += state->stride[ob] * sizeof(float);
+ }
}
}
- so->emitted_vertices += num_vertices;
++so->emitted_primitives;
}
if (!emit->has_so)
return;
- emit->emitted_vertices = 0;
+ if (!draw->so.num_targets)
+ return;
+
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->clip_pos;
+
emit->inputs = (const float (*)[4])input_verts->verts->data;
- for (i = 0; i < draw->so.num_buffers; ++i) {
- emit->buffers[i] = draw->so.buffers[i];
- }
- emit->single_buffer = TRUE;
- for (i = 0; i < draw->so.state.num_outputs; ++i) {
- if (draw->so.state.output_buffer[i] != 0)
- emit->single_buffer = FALSE;
- }
/* XXX: need to flush to get prim_vbuf.c to release its allocation??*/
draw_do_flush( draw, DRAW_FLUSH_BACKEND );
render->set_stream_output_info(render,
emit->emitted_primitives,
- emit->emitted_vertices);
+ emit->generated_primitives);
}
projects / mesa.git / blobdiff