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path: root/src/gallium/auxiliary/draw/draw_vs_exec.c
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Diffstat (limited to 'src/gallium/auxiliary/draw/draw_vs_exec.c')
-rw-r--r--src/gallium/auxiliary/draw/draw_vs_exec.c181
1 files changed, 82 insertions, 99 deletions
diff --git a/src/gallium/auxiliary/draw/draw_vs_exec.c b/src/gallium/auxiliary/draw/draw_vs_exec.c
index c6e503686a..5c88c2e24e 100644
--- a/src/gallium/auxiliary/draw/draw_vs_exec.c
+++ b/src/gallium/auxiliary/draw/draw_vs_exec.c
@@ -40,32 +40,7 @@
#include "tgsi/util/tgsi_parse.h"
-
-static INLINE unsigned
-compute_clipmask(const float *clip, /*const*/ float plane[][4], unsigned nr)
-{
- unsigned mask = 0;
- unsigned i;
-
- /* Do the hardwired planes first:
- */
- if (-clip[0] + clip[3] < 0) mask |= CLIP_RIGHT_BIT;
- if ( clip[0] + clip[3] < 0) mask |= CLIP_LEFT_BIT;
- if (-clip[1] + clip[3] < 0) mask |= CLIP_TOP_BIT;
- if ( clip[1] + clip[3] < 0) mask |= CLIP_BOTTOM_BIT;
- if (-clip[2] + clip[3] < 0) mask |= CLIP_FAR_BIT;
- if ( clip[2] + clip[3] < 0) mask |= CLIP_NEAR_BIT;
-
- /* Followed by any remaining ones:
- */
- for (i = 6; i < nr; i++) {
- if (dot4(clip, plane[i]) < 0)
- mask |= (1<<i);
- }
-
- return mask;
-}
-
+#define MAX_TGSI_VERTICES 4
static void
vs_exec_prepare( struct draw_vertex_shader *shader,
@@ -89,22 +64,23 @@ vs_exec_prepare( struct draw_vertex_shader *shader,
* \param count number of vertices to shade [1..4]
* \param vOut array of pointers to four output vertices
*/
-static void
+static boolean
vs_exec_run( struct draw_vertex_shader *shader,
struct draw_context *draw,
const unsigned *elts,
unsigned count,
- struct vertex_header *vOut[] )
+ void *vOut,
+ unsigned vertex_size)
{
struct tgsi_exec_machine *machine = &draw->machine;
- unsigned int j;
+ unsigned int i, j;
+ unsigned int clipped = 0;
ALIGN16_DECL(struct tgsi_exec_vector, inputs, PIPE_MAX_ATTRIBS);
ALIGN16_DECL(struct tgsi_exec_vector, outputs, PIPE_MAX_ATTRIBS);
const float *scale = draw->viewport.scale;
const float *trans = draw->viewport.translate;
- assert(count <= 4);
assert(draw->vertex_shader->info.output_semantic_name[0]
== TGSI_SEMANTIC_POSITION);
@@ -118,80 +94,87 @@ vs_exec_run( struct draw_vertex_shader *shader,
machine->Outputs = ALIGN16_ASSIGN(outputs);
}
- draw->vertex_fetch.fetch_func( draw, machine, elts, count );
-
- if (!draw->rasterizer->bypass_vs) {
- /* run interpreter */
- tgsi_exec_machine_run( machine );
- }
+ for (i = 0; i < count; i += MAX_TGSI_VERTICES) {
+ unsigned int max_vertices = MIN2(MAX_TGSI_VERTICES, count - i);
+ draw->vertex_fetch.fetch_func( draw, machine, &elts[i], max_vertices );
- /* store machine results */
- for (j = 0; j < count; j++) {
- unsigned slot;
- float x, y, z, w;
-
- /* Handle attr[0] (position) specially:
- *
- * XXX: Computing the clipmask should be done in the vertex
- * program as a set of DP4 instructions appended to the
- * user-provided code.
- */
- x = vOut[j]->clip[0] = machine->Outputs[0].xyzw[0].f[j];
- y = vOut[j]->clip[1] = machine->Outputs[0].xyzw[1].f[j];
- z = vOut[j]->clip[2] = machine->Outputs[0].xyzw[2].f[j];
- w = vOut[j]->clip[3] = machine->Outputs[0].xyzw[3].f[j];
-
- if (!draw->rasterizer->bypass_clipping) {
- vOut[j]->clipmask = compute_clipmask(vOut[j]->clip, draw->plane, draw->nr_planes);
-
- /* divide by w */
- w = 1.0f / w;
- x *= w;
- y *= w;
- z *= w;
- }
- else {
- vOut[j]->clipmask = 0;
- }
- vOut[j]->edgeflag = 1;
-
- if (!draw->identity_viewport) {
- /* Viewport mapping */
- vOut[j]->data[0][0] = x * scale[0] + trans[0];
- vOut[j]->data[0][1] = y * scale[1] + trans[1];
- vOut[j]->data[0][2] = z * scale[2] + trans[2];
- vOut[j]->data[0][3] = w;
- }
- else {
- vOut[j]->data[0][0] = x;
- vOut[j]->data[0][1] = y;
- vOut[j]->data[0][2] = z;
- vOut[j]->data[0][3] = w;
+ if (!draw->rasterizer->bypass_vs) {
+ /* run interpreter */
+ tgsi_exec_machine_run( machine );
}
- /* Remaining attributes are packed into sequential post-transform
- * vertex attrib slots.
- */
- for (slot = 1; slot < draw->num_vs_outputs; slot++) {
- vOut[j]->data[slot][0] = machine->Outputs[slot].xyzw[0].f[j];
- vOut[j]->data[slot][1] = machine->Outputs[slot].xyzw[1].f[j];
- vOut[j]->data[slot][2] = machine->Outputs[slot].xyzw[2].f[j];
- vOut[j]->data[slot][3] = machine->Outputs[slot].xyzw[3].f[j];
- }
+ /* store machine results */
+ for (j = 0; j < max_vertices; j++) {
+ unsigned slot;
+ float x, y, z, w;
+ struct vertex_header *out =
+ draw_header_from_block(vOut, vertex_size, i + j);
+
+ /* Handle attr[0] (position) specially:
+ *
+ * XXX: Computing the clipmask should be done in the vertex
+ * program as a set of DP4 instructions appended to the
+ * user-provided code.
+ */
+ x = out->clip[0] = machine->Outputs[0].xyzw[0].f[j];
+ y = out->clip[1] = machine->Outputs[0].xyzw[1].f[j];
+ z = out->clip[2] = machine->Outputs[0].xyzw[2].f[j];
+ w = out->clip[3] = machine->Outputs[0].xyzw[3].f[j];
+
+ if (!draw->rasterizer->bypass_clipping) {
+ out->clipmask = compute_clipmask(out->clip, draw->plane,
+ draw->nr_planes);
+ clipped += out->clipmask;
+
+ /* divide by w */
+ w = 1.0f / w;
+ x *= w;
+ y *= w;
+ z *= w;
+ }
+ else {
+ out->clipmask = 0;
+ }
+ out->edgeflag = 1;
+ out->vertex_id = UNDEFINED_VERTEX_ID;
+
+ if (!draw->identity_viewport) {
+ /* Viewport mapping */
+ out->data[0][0] = x * scale[0] + trans[0];
+ out->data[0][1] = y * scale[1] + trans[1];
+ out->data[0][2] = z * scale[2] + trans[2];
+ out->data[0][3] = w;
+ }
+ else {
+ out->data[0][0] = x;
+ out->data[0][1] = y;
+ out->data[0][2] = z;
+ out->data[0][3] = w;
+ }
+
+ /* Remaining attributes are packed into sequential post-transform
+ * vertex attrib slots.
+ */
+ for (slot = 1; slot < draw->num_vs_outputs; slot++) {
+ out->data[slot][0] = machine->Outputs[slot].xyzw[0].f[j];
+ out->data[slot][1] = machine->Outputs[slot].xyzw[1].f[j];
+ out->data[slot][2] = machine->Outputs[slot].xyzw[2].f[j];
+ out->data[slot][3] = machine->Outputs[slot].xyzw[3].f[j];
+ }
#if 0 /*DEBUG*/
- printf("Post xform vert:\n");
- for (slot = 0; slot < draw->num_vs_outputs; slot++) {
- printf("%d: %f %f %f %f\n", slot,
- vOut[j]->data[slot][0],
- vOut[j]->data[slot][1],
- vOut[j]->data[slot][2],
- vOut[j]->data[slot][3]);
- }
-#endif
-
-
- } /* loop over vertices */
+ printf("%d) Post xform vert:\n", i + j);
+ for (slot = 0; slot < draw->num_vs_outputs; slot++) {
+ printf("\t%d: %f %f %f %f\n", slot,
+ out->data[slot][0],
+ out->data[slot][1],
+ out->data[slot][2],
+ out->data[slot][3]);
+ }
+#endif
+ } /* loop over vertices */
+ }
+ return clipped != 0;
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-23 05:24:28 +0000