geometry shaders: make gs work with changable primitives and variable number of vertices

[mesa.git] / src / gallium / auxiliary / draw / draw_pt_fetch_emit.c

diff --git a/src/gallium/auxiliary/draw/draw_pt_fetch_emit.c b/src/gallium/auxiliary/draw/draw_pt_fetch_emit.c
index e7fe6b3b7687af024f8112b6dfc0b025320de0ea..c629d55563699cccf0cbd15069d69036c6012e3d 100644 (file)
--- a/src/gallium/auxiliary/draw/draw_pt_fetch_emit.c
+++ b/src/gallium/auxiliary/draw/draw_pt_fetch_emit.c
@@ -90,6 +90,7 @@ struct fetch_emit_middle_end {
 
 static void fetch_emit_prepare( struct draw_pt_middle_end *middle,
                                 unsigned prim,
+                                unsigned out_prim,
                                unsigned opt,
                                 unsigned *max_vertices )
 {
@@ -102,7 +103,7 @@ static void fetch_emit_prepare( struct draw_pt_middle_end *middle,
 
 
    ok = draw->render->set_primitive( draw->render, 
-                                     prim );
+                                     out_prim );
    if (!ok) {
       assert(0);
       return;
@@ -129,46 +130,23 @@ static void fetch_emit_prepare( struct draw_pt_middle_end *middle,
       unsigned input_offset = src->src_offset;
       unsigned output_format;
 
-      switch (vinfo->attrib[i].emit) {
-      case EMIT_4UB:
-        output_format = PIPE_FORMAT_R8G8B8A8_UNORM;
-        emit_sz = 4 * sizeof(unsigned char);
-         break;
-      case EMIT_4F:
-        output_format = PIPE_FORMAT_R32G32B32A32_FLOAT;
-        emit_sz = 4 * sizeof(float);
-         break;
-      case EMIT_3F:
-        output_format = PIPE_FORMAT_R32G32B32_FLOAT;
-        emit_sz = 3 * sizeof(float);
-         break;
-      case EMIT_2F:
-        output_format = PIPE_FORMAT_R32G32_FLOAT;
-        emit_sz = 2 * sizeof(float);
-         break;
-      case EMIT_1F:
-        output_format = PIPE_FORMAT_R32_FLOAT;
-        emit_sz = 1 * sizeof(float);
-         break;
-      case EMIT_1F_PSIZE:
+      output_format = draw_translate_vinfo_format(vinfo->attrib[i].emit);
+      emit_sz = draw_translate_vinfo_size(vinfo->attrib[i].emit);
+
+      if (vinfo->attrib[i].emit == EMIT_OMIT)
+        continue;
+
+      if (vinfo->attrib[i].emit == EMIT_1F_PSIZE) {
         input_format = PIPE_FORMAT_R32_FLOAT;
         input_buffer = draw->pt.nr_vertex_buffers;
         input_offset = 0;
-        output_format = PIPE_FORMAT_R32_FLOAT;
-        emit_sz = 1 * sizeof(float);
-         break;
-      case EMIT_OMIT:
-         continue;
-      default:
-         assert(0);
-        output_format = PIPE_FORMAT_NONE;
-        emit_sz = 0;
-        continue;
       }
 
+      key.element[i].type = TRANSLATE_ELEMENT_NORMAL;
       key.element[i].input_format = input_format;
       key.element[i].input_buffer = input_buffer;
       key.element[i].input_offset = input_offset;
+      key.element[i].instance_divisor = src->instance_divisor;
       key.element[i].output_format = output_format;
       key.element[i].output_offset = dst_offset;
       
@@ -191,7 +169,8 @@ static void fetch_emit_prepare( struct draw_pt_middle_end *middle,
       feme->translate->set_buffer(feme->translate, 
                                  draw->pt.nr_vertex_buffers, 
                                  &feme->point_size,
-                                 0);
+                                 0,
+                                 ~0);
    }
    
    feme->point_size = draw->rasterizer->point_size;
@@ -201,7 +180,8 @@ static void fetch_emit_prepare( struct draw_pt_middle_end *middle,
                                   i, 
                                   ((char *)draw->pt.user.vbuffer[i] + 
                                    draw->pt.vertex_buffer[i].buffer_offset),
-                                  draw->pt.vertex_buffer[i].stride );
+                                  draw->pt.vertex_buffer[i].stride,
+                                  draw->pt.vertex_buffer[i].max_index);
    }
 
    *max_vertices = (draw->render->max_vertex_buffer_bytes / 
@@ -256,6 +236,7 @@ static void fetch_emit_run( struct draw_pt_middle_end *middle,
    feme->translate->run_elts( feme->translate, 
                              fetch_elts,
                              fetch_count,
+                              draw->instance_id,
                              hw_verts );
 
    if (0) {
@@ -274,9 +255,9 @@ static void fetch_emit_run( struct draw_pt_middle_end *middle,
    /* XXX: Draw arrays path to avoid re-emitting index list again and
     * again.
     */
-   draw->render->draw( draw->render, 
-                       draw_elts, 
-                       draw_count );
+   draw->render->draw_elements( draw->render, 
+                                draw_elts, 
+                                draw_count );
 
    /* Done -- that was easy, wasn't it: 
     */
@@ -314,6 +295,7 @@ static void fetch_emit_run_linear( struct draw_pt_middle_end *middle,
    feme->translate->run( feme->translate,
                          start,
                          count,
+                         draw->instance_id,
                          hw_verts );
 
    if (0) {
@@ -374,6 +356,7 @@ static boolean fetch_emit_run_linear_elts( struct draw_pt_middle_end *middle,
    feme->translate->run( feme->translate,
                          start,
                          count,
+                         draw->instance_id,
                          hw_verts );
 
    draw->render->unmap_vertices( draw->render, 0, (ushort)(count - 1) );
@@ -381,9 +364,9 @@ static boolean fetch_emit_run_linear_elts( struct draw_pt_middle_end *middle,
    /* XXX: Draw arrays path to avoid re-emitting index list again and
     * again.
     */
-   draw->render->draw( draw->render, 
-                       draw_elts, 
-                       draw_count );
+   draw->render->draw_elements( draw->render, 
+                                draw_elts, 
+                                draw_count );
 
    /* Done -- that was easy, wasn't it:
     */