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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.c396
1 files changed, 396 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..ec3b41c320
--- /dev/null
+++ b/src/gallium/auxiliary/draw/draw_pt_fetch_shade_pipeline.c
@@ -0,0 +1,396 @@
+/**************************************************************************
+ *
+ * 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 "util/u_math.h"
+#include "util/u_memory.h"
+#include "draw/draw_context.h"
+#include "draw/draw_vbuf.h"
+#include "draw/draw_vertex.h"
+#include "draw/draw_pt.h"
+#include "draw/draw_vs.h"
+#include "translate/translate.h"
+
+
+struct fetch_pipeline_middle_end {
+ struct draw_pt_middle_end base;
+ struct draw_context *draw;
+
+ struct pt_emit *emit;
+ struct pt_fetch *fetch;
+ struct pt_post_vs *post_vs;
+
+ unsigned vertex_data_offset;
+ unsigned vertex_size;
+ unsigned prim;
+ unsigned opt;
+};
+
+
+static void fetch_pipeline_prepare( struct draw_pt_middle_end *middle,
+ unsigned prim,
+ unsigned opt,
+ unsigned *max_vertices )
+{
+ struct fetch_pipeline_middle_end *fpme = (struct fetch_pipeline_middle_end *)middle;
+ struct draw_context *draw = fpme->draw;
+ struct draw_vertex_shader *vs = draw->vs.vertex_shader;
+
+ /* Add one to num_outputs because the pipeline occasionally tags on
+ * an additional texcoord, eg for AA lines.
+ */
+ unsigned nr = MAX2( vs->info.num_inputs,
+ vs->info.num_outputs + 1 );
+
+ fpme->prim = prim;
+ fpme->opt = opt;
+
+ /* Always leave room for the vertex header whether we need it or
+ * not. It's hard to get rid of it in particular because of the
+ * viewport code in draw_pt_post_vs.c.
+ */
+ fpme->vertex_size = sizeof(struct vertex_header) + nr * 4 * sizeof(float);
+
+
+
+ draw_pt_fetch_prepare( fpme->fetch,
+ fpme->vertex_size );
+
+ /* XXX: it's not really gl rasterization rules we care about here,
+ * but gl vs dx9 clip spaces.
+ */
+ draw_pt_post_vs_prepare( fpme->post_vs,
+ (boolean)draw->bypass_clipping,
+ (boolean)draw->identity_viewport,
+ (boolean)draw->rasterizer->gl_rasterization_rules );
+
+
+ if (!(opt & PT_PIPELINE)) {
+ draw_pt_emit_prepare( fpme->emit,
+ prim,
+ max_vertices );
+
+ *max_vertices = MAX2( *max_vertices,
+ DRAW_PIPE_MAX_VERTICES );
+ }
+ else {
+ *max_vertices = DRAW_PIPE_MAX_VERTICES;
+ }
+
+ /* return even number */
+ *max_vertices = *max_vertices & ~1;
+
+ /* No need to prepare the shader.
+ */
+ vs->prepare(vs, draw);
+}
+
+
+
+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->vs.vertex_shader;
+ unsigned opt = fpme->opt;
+ unsigned alloc_count = align( fetch_count, 4 );
+
+ struct vertex_header *pipeline_verts =
+ (struct vertex_header *)MALLOC(fpme->vertex_size * alloc_count);
+
+ if (!pipeline_verts) {
+ /* Not much we can do here - just skip the rendering.
+ */
+ assert(0);
+ return;
+ }
+
+ /* Fetch into our vertex buffer
+ */
+ draw_pt_fetch_run( fpme->fetch,
+ fetch_elts,
+ fetch_count,
+ (char *)pipeline_verts );
+
+ /* Run the shader, note that this overwrites the data[] parts of
+ * the pipeline verts. If there is no shader, ie a bypass shader,
+ * then the inputs == outputs, and are already in the correct
+ * place.
+ */
+ if (opt & PT_SHADE)
+ {
+ shader->run_linear(shader,
+ (const float (*)[4])pipeline_verts->data,
+ ( float (*)[4])pipeline_verts->data,
+ (const float (*)[4])draw->pt.user.constants,
+ fetch_count,
+ fpme->vertex_size,
+ fpme->vertex_size);
+ }
+
+ if (draw_pt_post_vs_run( fpme->post_vs,
+ pipeline_verts,
+ fetch_count,
+ fpme->vertex_size ))
+ {
+ opt |= PT_PIPELINE;
+ }
+
+ /* Do we need to run the pipeline?
+ */
+ if (opt & PT_PIPELINE) {
+ draw_pipeline_run( fpme->draw,
+ fpme->prim,
+ pipeline_verts,
+ fetch_count,
+ fpme->vertex_size,
+ draw_elts,
+ draw_count );
+ }
+ else {
+ draw_pt_emit( fpme->emit,
+ (const float (*)[4])pipeline_verts->data,
+ fetch_count,
+ fpme->vertex_size,
+ draw_elts,
+ draw_count );
+ }
+
+
+ FREE(pipeline_verts);
+}
+
+
+static void fetch_pipeline_linear_run( struct draw_pt_middle_end *middle,
+ unsigned start,
+ unsigned 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->vs.vertex_shader;
+ unsigned opt = fpme->opt;
+ unsigned alloc_count = align( count, 4 );
+
+ struct vertex_header *pipeline_verts =
+ (struct vertex_header *)MALLOC(fpme->vertex_size * alloc_count);
+
+ if (!pipeline_verts) {
+ /* Not much we can do here - just skip the rendering.
+ */
+ assert(0);
+ return;
+ }
+
+ /* Fetch into our vertex buffer
+ */
+ draw_pt_fetch_run_linear( fpme->fetch,
+ start,
+ count,
+ (char *)pipeline_verts );
+
+ /* Run the shader, note that this overwrites the data[] parts of
+ * the pipeline verts. If there is no shader, ie a bypass shader,
+ * then the inputs == outputs, and are already in the correct
+ * place.
+ */
+ if (opt & PT_SHADE)
+ {
+ shader->run_linear(shader,
+ (const float (*)[4])pipeline_verts->data,
+ ( float (*)[4])pipeline_verts->data,
+ (const float (*)[4])draw->pt.user.constants,
+ count,
+ fpme->vertex_size,
+ fpme->vertex_size);
+ }
+
+ if (draw_pt_post_vs_run( fpme->post_vs,
+ pipeline_verts,
+ count,
+ fpme->vertex_size ))
+ {
+ opt |= PT_PIPELINE;
+ }
+
+ /* Do we need to run the pipeline?
+ */
+ if (opt & PT_PIPELINE) {
+ draw_pipeline_run_linear( fpme->draw,
+ fpme->prim,
+ pipeline_verts,
+ count,
+ fpme->vertex_size);
+ }
+ else {
+ draw_pt_emit_linear( fpme->emit,
+ (const float (*)[4])pipeline_verts->data,
+ count,
+ fpme->vertex_size,
+ 0, /*start*/
+ count );
+ }
+
+ FREE(pipeline_verts);
+}
+
+
+
+static boolean fetch_pipeline_linear_run_elts( struct draw_pt_middle_end *middle,
+ unsigned start,
+ unsigned 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->vs.vertex_shader;
+ unsigned opt = fpme->opt;
+ unsigned alloc_count = align( count, 4 );
+
+ struct vertex_header *pipeline_verts =
+ (struct vertex_header *)MALLOC(fpme->vertex_size * alloc_count);
+
+ if (!pipeline_verts)
+ return FALSE;
+
+ /* Fetch into our vertex buffer
+ */
+ draw_pt_fetch_run_linear( fpme->fetch,
+ start,
+ count,
+ (char *)pipeline_verts );
+
+ /* Run the shader, note that this overwrites the data[] parts of
+ * the pipeline verts. If there is no shader, ie a bypass shader,
+ * then the inputs == outputs, and are already in the correct
+ * place.
+ */
+ if (opt & PT_SHADE)
+ {
+ shader->run_linear(shader,
+ (const float (*)[4])pipeline_verts->data,
+ ( float (*)[4])pipeline_verts->data,
+ (const float (*)[4])draw->pt.user.constants,
+ count,
+ fpme->vertex_size,
+ fpme->vertex_size);
+ }
+
+ if (draw_pt_post_vs_run( fpme->post_vs,
+ pipeline_verts,
+ count,
+ fpme->vertex_size ))
+ {
+ opt |= PT_PIPELINE;
+ }
+
+ /* Do we need to run the pipeline?
+ */
+ if (opt & PT_PIPELINE) {
+ draw_pipeline_run( fpme->draw,
+ fpme->prim,
+ pipeline_verts,
+ count,
+ fpme->vertex_size,
+ draw_elts,
+ draw_count );
+ }
+ else {
+ draw_pt_emit( fpme->emit,
+ (const float (*)[4])pipeline_verts->data,
+ count,
+ fpme->vertex_size,
+ draw_elts,
+ draw_count );
+ }
+
+ FREE(pipeline_verts);
+ return TRUE;
+}
+
+
+
+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 )
+{
+ struct fetch_pipeline_middle_end *fpme = (struct fetch_pipeline_middle_end *)middle;
+
+ if (fpme->fetch)
+ draw_pt_fetch_destroy( fpme->fetch );
+
+ if (fpme->emit)
+ draw_pt_emit_destroy( fpme->emit );
+
+ if (fpme->post_vs)
+ draw_pt_post_vs_destroy( fpme->post_vs );
+
+ FREE(middle);
+}
+
+
+struct draw_pt_middle_end *draw_pt_fetch_pipeline_or_emit( struct draw_context *draw )
+{
+ struct fetch_pipeline_middle_end *fpme = CALLOC_STRUCT( fetch_pipeline_middle_end );
+ if (!fpme)
+ goto fail;
+
+ fpme->base.prepare = fetch_pipeline_prepare;
+ fpme->base.run = fetch_pipeline_run;
+ fpme->base.run_linear = fetch_pipeline_linear_run;
+ fpme->base.run_linear_elts = fetch_pipeline_linear_run_elts;
+ fpme->base.finish = fetch_pipeline_finish;
+ fpme->base.destroy = fetch_pipeline_destroy;
+
+ fpme->draw = draw;
+
+ fpme->fetch = draw_pt_fetch_create( draw );
+ if (!fpme->fetch)
+ goto fail;
+
+ fpme->post_vs = draw_pt_post_vs_create( draw );
+ if (!fpme->post_vs)
+ goto fail;
+
+ fpme->emit = draw_pt_emit_create( draw );
+ if (!fpme->emit)
+ goto fail;
+
+ return &fpme->base;
+
+ fail:
+ if (fpme)
+ fetch_pipeline_destroy( &fpme->base );
+
+ return NULL;
+}
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