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path: root/src/gallium/auxiliary/draw/draw_pt_fetch_shade_pipeline.c
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Diffstat (limited to 'src/gallium/auxiliary/draw/draw_pt_fetch_shade_pipeline.c')
-rw-r--r--src/gallium/auxiliary/draw/draw_pt_fetch_shade_pipeline.c253
1 files changed, 253 insertions, 0 deletions
diff --git a/src/gallium/auxiliary/draw/draw_pt_fetch_shade_pipeline.c b/src/gallium/auxiliary/draw/draw_pt_fetch_shade_pipeline.c
new file mode 100644
index 0000000000..e7550fe328
--- /dev/null
+++ b/src/gallium/auxiliary/draw/draw_pt_fetch_shade_pipeline.c
@@ -0,0 +1,253 @@
+/**************************************************************************
+ *
+ * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ **************************************************************************/
+
+#include "pipe/p_util.h"
+#include "draw/draw_context.h"
+#include "draw/draw_private.h"
+#include "draw/draw_vbuf.h"
+#include "draw/draw_vertex.h"
+#include "draw/draw_pt.h"
+
+struct fetch_pipeline_middle_end {
+ struct draw_pt_middle_end base;
+ struct draw_context *draw;
+
+ struct {
+ const ubyte *ptr;
+ unsigned pitch;
+ void (*fetch)( const void *from, float *attrib);
+ void (*emit)( const float *attrib, float **out );
+ } fetch[PIPE_MAX_ATTRIBS];
+
+ unsigned nr_fetch;
+ unsigned pipeline_vertex_size;
+ unsigned hw_vertex_size;
+ unsigned prim;
+};
+
+static void emit_R32_FLOAT( const float *attrib,
+ float **out )
+{
+ (*out)[0] = attrib[0];
+ (*out) += 1;
+}
+
+static void emit_R32G32_FLOAT( const float *attrib,
+ float **out )
+{
+ (*out)[0] = attrib[0];
+ (*out)[1] = attrib[1];
+ (*out) += 2;
+}
+
+static void emit_R32G32B32_FLOAT( const float *attrib,
+ float **out )
+{
+ (*out)[0] = attrib[0];
+ (*out)[1] = attrib[1];
+ (*out)[2] = attrib[2];
+ (*out) += 3;
+}
+
+static void emit_R32G32B32A32_FLOAT( const float *attrib,
+ float **out )
+{
+ (*out)[0] = attrib[0];
+ (*out)[1] = attrib[1];
+ (*out)[2] = attrib[2];
+ (*out)[3] = attrib[3];
+ (*out) += 4;
+}
+
+static void fetch_pipeline_prepare( struct draw_pt_middle_end *middle,
+ unsigned prim )
+{
+ struct fetch_pipeline_middle_end *fpme = (struct fetch_pipeline_middle_end *)middle;
+ struct draw_context *draw = fpme->draw;
+ unsigned i, nr = 0;
+ boolean ok;
+ const struct vertex_info *vinfo;
+
+ fpme->prim = prim;
+
+ ok = draw->render->set_primitive(draw->render, prim);
+ if (!ok) {
+ assert(0);
+ return;
+ }
+ /* Must do this after set_primitive() above:
+ */
+ vinfo = draw->render->get_vertex_info(draw->render);
+
+ /* Need to look at vertex shader inputs (we know it is a
+ * passthrough shader, so these define the outputs too). If we
+ * were running a shader, we'd still be looking at the inputs at
+ * this point.
+ */
+ for (i = 0; i < draw->vertex_shader->info.num_inputs; i++) {
+ unsigned buf = draw->vertex_element[i].vertex_buffer_index;
+ enum pipe_format format = draw->vertex_element[i].src_format;
+
+ fpme->fetch[nr].ptr = ((const ubyte *) draw->user.vbuffer[buf] +
+ draw->vertex_buffer[buf].buffer_offset +
+ draw->vertex_element[i].src_offset);
+
+ fpme->fetch[nr].pitch = draw->vertex_buffer[buf].pitch;
+ fpme->fetch[nr].fetch = draw_get_fetch_func( format );
+
+ /* Always do this -- somewhat redundant...
+ */
+ fpme->fetch[nr].emit = emit_R32G32B32A32_FLOAT;
+ nr++;
+ }
+
+ fpme->nr_fetch = nr;
+ //fpme->pipeline_vertex_size = sizeof(struct vertex_header) + nr * 4 * sizeof(float);
+ fpme->pipeline_vertex_size = (MAX_VERTEX_SIZE + 0x0f) & ~0x0f;
+ fpme->hw_vertex_size = vinfo->size * 4;
+}
+
+
+
+
+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 *shader = draw->vertex_shader;
+ char *pipeline_verts;
+ unsigned i;
+
+ //debug_printf("fc = %d, VS = %d\n", fetch_count, VS_QUEUE_LENGTH);
+ if (fetch_count < VS_QUEUE_LENGTH) {
+ pipeline_verts = draw->vs.vertex_cache;
+ } else {
+ pipeline_verts = MALLOC(fpme->pipeline_vertex_size *
+ fetch_count);
+ }
+
+ if (!pipeline_verts) {
+ assert(0);
+ return;
+ }
+
+ /*FIXME: this init phase should go away */
+ for (i = 0; i < fetch_count; ++i) {
+ struct vertex_header *header =
+ (struct vertex_header*)(pipeline_verts + (fpme->pipeline_vertex_size * i));
+ header->clipmask = 0;
+ header->edgeflag = draw_get_edgeflag(draw, i);
+ header->pad = 0;
+ header->vertex_id = UNDEFINED_VERTEX_ID;
+ }
+
+ /* Shade
+ */
+ shader->prepare(shader, draw);
+ if (shader->run(shader, draw, fetch_elts, fetch_count, pipeline_verts)) {
+ /* Run the pipeline */
+ draw_pt_run_pipeline( fpme->draw,
+ fpme->prim,
+ pipeline_verts,
+ fpme->pipeline_vertex_size,
+ fetch_count,
+ draw_elts,
+ draw_count );
+ } else {
+ unsigned i, j;
+ void *hw_verts;
+ float *out;
+
+ hw_verts = draw->render->allocate_vertices(draw->render,
+ (ushort)fpme->hw_vertex_size,
+ (ushort)fetch_count);
+ if (!hw_verts) {
+ assert(0);
+ return;
+ }
+
+ out = (float *)hw_verts;
+ for (i = 0; i < fetch_count; i++) {
+ struct vertex_header *header =
+ (struct vertex_header*)(pipeline_verts + (fpme->pipeline_vertex_size * i));
+
+ for (j = 0; j < fpme->nr_fetch; j++) {
+ float *attrib = header->data[j];
+ /*debug_printf("emiting [%f, %f, %f, %f]\n",
+ attrib[0], attrib[1],
+ attrib[2], attrib[3]);*/
+ fpme->fetch[j].emit(attrib, &out);
+ }
+ }
+ /* XXX: Draw arrays path to avoid re-emitting index list again and
+ * again.
+ */
+ draw->render->draw(draw->render,
+ draw_elts,
+ draw_count);
+
+ draw->render->release_vertices(draw->render,
+ hw_verts,
+ fpme->hw_vertex_size,
+ fetch_count);
+ }
+
+
+ if (pipeline_verts != draw->vs.vertex_cache)
+ FREE(pipeline_verts);
+}
+
+
+
+static void fetch_pipeline_finish( struct draw_pt_middle_end *middle )
+{
+ /* nothing to do */
+}
+
+static void fetch_pipeline_destroy( struct draw_pt_middle_end *middle )
+{
+ FREE(middle);
+}
+
+
+struct draw_pt_middle_end *draw_pt_fetch_pipeline_or_emit( struct draw_context *draw )
+{
+ struct fetch_pipeline_middle_end *fetch_pipeline = CALLOC_STRUCT( fetch_pipeline_middle_end );
+
+ fetch_pipeline->base.prepare = fetch_pipeline_prepare;
+ fetch_pipeline->base.run = fetch_pipeline_run;
+ fetch_pipeline->base.finish = fetch_pipeline_finish;
+ fetch_pipeline->base.destroy = fetch_pipeline_destroy;
+
+ fetch_pipeline->draw = draw;
+
+ return &fetch_pipeline->base;
+}
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