+++ /dev/null
-/**************************************************************************
- *
- * Copyright 2003 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.
- *
- **************************************************************************/
-
-/*
- * Render unclipped vertex buffers by emitting vertices directly to
- * dma buffers. Use strip/fan hardware acceleration where possible.
- *
- */
-#include "glheader.h"
-#include "context.h"
-#include "macros.h"
-#include "imports.h"
-#include "mtypes.h"
-#include "enums.h"
-
-#include "tnl/t_context.h"
-#include "tnl/t_vertex.h"
-
-#include "intel_screen.h"
-#include "intel_context.h"
-#include "intel_tris.h"
-#include "intel_batchbuffer.h"
-#include "intel_reg.h"
-
-/*
- * Render unclipped vertex buffers by emitting vertices directly to
- * dma buffers. Use strip/fan hardware primitives where possible.
- * Try to simulate missing primitives with indexed vertices.
- */
-#define HAVE_POINTS 0 /* Has it, but can't use because subpixel has to
- * be adjusted for points on the INTEL/I845G
- */
-#define HAVE_LINES 1
-#define HAVE_LINE_STRIPS 1
-#define HAVE_TRIANGLES 1
-#define HAVE_TRI_STRIPS 1
-#define HAVE_TRI_STRIP_1 0 /* has it, template can't use it yet */
-#define HAVE_TRI_FANS 1
-#define HAVE_POLYGONS 1
-#define HAVE_QUADS 0
-#define HAVE_QUAD_STRIPS 0
-
-#define HAVE_ELTS 0
-
-static GLuint hw_prim[GL_POLYGON + 1] = {
- 0,
- PRIM3D_LINELIST,
- PRIM3D_LINESTRIP,
- PRIM3D_LINESTRIP,
- PRIM3D_TRILIST,
- PRIM3D_TRISTRIP,
- PRIM3D_TRIFAN,
- 0,
- 0,
- PRIM3D_POLY
-};
-
-static const GLenum reduced_prim[GL_POLYGON + 1] = {
- GL_POINTS,
- GL_LINES,
- GL_LINES,
- GL_LINES,
- GL_TRIANGLES,
- GL_TRIANGLES,
- GL_TRIANGLES,
- GL_TRIANGLES,
- GL_TRIANGLES,
- GL_TRIANGLES
-};
-
-static const int scale_prim[GL_POLYGON + 1] = {
- 0, /* fallback case */
- 1,
- 2,
- 2,
- 1,
- 3,
- 3,
- 0, /* fallback case */
- 0, /* fallback case */
- 3
-};
-
-
-static void
-intelDmaPrimitive(struct intel_context *intel, GLenum prim)
-{
- if (0)
- fprintf(stderr, "%s %s\n", __FUNCTION__, _mesa_lookup_enum_by_nr(prim));
- INTEL_FIREVERTICES(intel);
- intel->vtbl.reduced_primitive_state(intel, reduced_prim[prim]);
- intelStartInlinePrimitive(intel, hw_prim[prim], INTEL_BATCH_CLIPRECTS);
-}
-
-
-#define LOCAL_VARS struct intel_context *intel = intel_context(ctx)
-#define INIT( prim ) \
-do { \
- intelDmaPrimitive( intel, prim ); \
-} while (0)
-
-#define FLUSH() INTEL_FIREVERTICES(intel)
-
-#define GET_SUBSEQUENT_VB_MAX_VERTS() \
- ((intel->batch->size - 1500) / (intel->vertex_size*4))
-#define GET_CURRENT_VB_MAX_VERTS() GET_SUBSEQUENT_VB_MAX_VERTS()
-
-#define ALLOC_VERTS( nr ) \
- intelExtendInlinePrimitive( intel, (nr) * intel->vertex_size )
-
-#define EMIT_VERTS( ctx, j, nr, buf ) \
- _tnl_emit_vertices_to_buffer(ctx, j, (j)+(nr), buf )
-
-#define TAG(x) intel_##x
-#include "tnl_dd/t_dd_dmatmp.h"
-
-
-/**********************************************************************/
-/* Render pipeline stage */
-/**********************************************************************/
-
-/* Heuristic to choose between the two render paths:
- */
-static GLboolean
-choose_render(struct intel_context *intel, struct vertex_buffer *VB)
-{
- int vertsz = intel->vertex_size;
- int cost_render = 0;
- int cost_fallback = 0;
- int nr_prims = 0;
- int nr_rprims = 0;
- int nr_rverts = 0;
- int rprim = intel->reduced_primitive;
- int i = 0;
-
- for (i = 0; i < VB->PrimitiveCount; i++) {
- GLuint prim = VB->Primitive[i].mode;
- GLuint length = VB->Primitive[i].count;
-
- if (!length)
- continue;
-
- nr_prims++;
- nr_rverts += length * scale_prim[prim & PRIM_MODE_MASK];
-
- if (reduced_prim[prim & PRIM_MODE_MASK] != rprim) {
- nr_rprims++;
- rprim = reduced_prim[prim & PRIM_MODE_MASK];
- }
- }
-
- /* One point for each generated primitive:
- */
- cost_render = nr_prims;
- cost_fallback = nr_rprims;
-
- /* One point for every 1024 dwords (4k) of dma:
- */
- cost_render += (vertsz * i) / 1024;
- cost_fallback += (vertsz * nr_rverts) / 1024;
-
- if (0)
- fprintf(stderr, "cost render: %d fallback: %d\n",
- cost_render, cost_fallback);
-
- if (cost_render > cost_fallback)
- return GL_FALSE;
-
- return GL_TRUE;
-}
-
-
-static GLboolean
-intel_run_render(GLcontext * ctx, struct tnl_pipeline_stage *stage)
-{
- struct intel_context *intel = intel_context(ctx);
- TNLcontext *tnl = TNL_CONTEXT(ctx);
- struct vertex_buffer *VB = &tnl->vb;
- GLuint i;
-
- intel->vtbl.render_prevalidate( intel );
-
- /* Don't handle clipping or indexed vertices.
- */
- if (intel->RenderIndex != 0 ||
- !intel_validate_render(ctx, VB) || !choose_render(intel, VB)) {
- return GL_TRUE;
- }
-
- tnl->clipspace.new_inputs |= VERT_BIT_POS;
-
- tnl->Driver.Render.Start(ctx);
-
- for (i = 0; i < VB->PrimitiveCount; i++) {
- GLuint prim = VB->Primitive[i].mode;
- GLuint start = VB->Primitive[i].start;
- GLuint length = VB->Primitive[i].count;
-
- if (!length)
- continue;
-
- intel_render_tab_verts[prim & PRIM_MODE_MASK] (ctx, start,
- start + length, prim);
- }
-
- tnl->Driver.Render.Finish(ctx);
-
- INTEL_FIREVERTICES(intel);
-
- return GL_FALSE; /* finished the pipe */
-}
-
-const struct tnl_pipeline_stage _intel_render_stage = {
- "intel render",
- NULL,
- NULL,
- NULL,
- NULL,
- intel_run_render /* run */
-};
projects / mesa.git / commitdiff