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path: root/src/mesa/pipe/softpipe/g_draw.c
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Diffstat (limited to 'src/mesa/pipe/softpipe/g_draw.c')
-rw-r--r--src/mesa/pipe/softpipe/g_draw.c696
1 files changed, 0 insertions, 696 deletions
diff --git a/src/mesa/pipe/softpipe/g_draw.c b/src/mesa/pipe/softpipe/g_draw.c
deleted file mode 100644
index 4e094c21a0..0000000000
--- a/src/mesa/pipe/softpipe/g_draw.c
+++ /dev/null
@@ -1,696 +0,0 @@
-/**************************************************************************
- *
- * 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.
- *
- **************************************************************************/
-
- /*
- * Authors:
- * Keith Whitwell <keith@tungstengraphics.com>
- */
-
-#include "imports.h"
-
-#include "tnl/t_context.h"
-
-#include "g_context.h"
-#include "g_prim.h"
-#include "g_headers.h"
-#include "g_draw.h"
-
-/* This file is a temporary set of hooks to allow us to use the tnl/
- * and vf/ modules until we have replacements in softpipe.
- */
-
-
-struct draw_context
-{
- struct generic_context *generic;
-
- struct vf_attr_map attrs[VF_ATTRIB_MAX];
- GLuint nr_attrs;
- GLuint vertex_size;
- struct vertex_fetch *vf;
-
- GLubyte *verts;
- GLuint nr_vertices;
- GLboolean in_vb;
-
- GLenum prim;
-
- /* Helper for tnl:
- */
- GLvector4f header;
-};
-
-
-static struct vertex_header *get_vertex( struct draw_context *pipe,
- GLuint i )
-{
- return (struct vertex_header *)(pipe->verts + i * pipe->vertex_size);
-}
-
-
-
-static void draw_allocate_vertices( struct draw_context *draw,
- GLuint nr_vertices )
-{
- draw->nr_vertices = nr_vertices;
- draw->verts = MALLOC( nr_vertices * draw->vertex_size );
-
- draw->generic->prim.first->begin( draw->generic->prim.first );
-}
-
-static void draw_set_prim( struct draw_context *draw,
- GLenum prim )
-{
- draw->prim = prim;
-
- /* Not done yet - need to force edgeflags to 1 in strip/fan
- * primitives.
- */
-#if 0
- switch (prim) {
- case GL_TRIANGLES:
- case GL_POLYGON:
- case GL_QUADS:
- case GL_QUAD_STRIP: /* yes, we need this */
- respect_edgeflags( pipe, GL_TRUE );
- break;
-
- default:
- respect_edgeflags( pipe, GL_FALSE );
- break;
- }
-#endif
-}
-
-
-
-static void do_quad( struct prim_stage *first,
- struct vertex_header *v0,
- struct vertex_header *v1,
- struct vertex_header *v2,
- struct vertex_header *v3 )
-{
- struct prim_header prim;
-
- {
- GLuint tmp = v1->edgeflag;
- v1->edgeflag = 0;
-
- prim.v[0] = v0;
- prim.v[1] = v1;
- prim.v[2] = v3;
- first->tri( first, &prim );
-
- v1->edgeflag = tmp;
- }
-
- {
- GLuint tmp = v3->edgeflag;
- v3->edgeflag = 0;
-
- prim.v[0] = v1;
- prim.v[1] = v2;
- prim.v[2] = v3;
- first->tri( first, &prim );
-
- v3->edgeflag = tmp;
- }
-}
-
-
-
-
-static void draw_indexed_prim( struct draw_context *draw,
- const GLuint *elts,
- GLuint count )
-{
- struct prim_stage * const first = draw->generic->prim.first;
- struct prim_header prim;
- GLuint i;
-
- prim.det = 0; /* valid from cull stage onwards */
- prim.v[0] = 0;
- prim.v[1] = 0;
- prim.v[2] = 0;
-
- switch (draw->prim) {
- case GL_POINTS:
- for (i = 0; i < count; i ++) {
- prim.v[0] = get_vertex( draw, elts[i] );
-
- first->point( first, &prim );
- }
- break;
-
- case GL_LINES:
- for (i = 0; i+1 < count; i += 2) {
- prim.v[0] = get_vertex( draw, elts[i + 0] );
- prim.v[1] = get_vertex( draw, elts[i + 1] );
-
- first->line( first, &prim );
- }
- break;
-
- case GL_LINE_LOOP:
- if (count >= 2) {
- for (i = 1; i < count; i++) {
- prim.v[0] = get_vertex( draw, elts[i-1] );
- prim.v[1] = get_vertex( draw, elts[i] );
- first->line( first, &prim );
- }
-
- prim.v[0] = get_vertex( draw, elts[count-1] );
- prim.v[1] = get_vertex( draw, elts[0] );
- first->line( first, &prim );
- }
- break;
-
- case GL_LINE_STRIP:
- /* I'm guessing it will be necessary to have something like a
- * render->reset_line_stipple() method to properly support
- * splitting strips into primitives like this. Alternately we
- * could just scan ahead to find individual clipped lines and
- * otherwise leave the strip intact - that might be better, but
- * require more complex code here.
- */
- if (count >= 2) {
- prim.v[0] = 0;
- prim.v[1] = get_vertex( draw, elts[0] );
-
- for (i = 1; i < count; i++) {
- prim.v[0] = prim.v[1];
- prim.v[1] = get_vertex( draw, elts[i] );
-
- first->line( first, &prim );
- }
- }
- break;
-
- case GL_TRIANGLES:
- for (i = 0; i+2 < count; i += 3) {
- prim.v[0] = get_vertex( draw, elts[i + 0] );
- prim.v[1] = get_vertex( draw, elts[i + 1] );
- prim.v[2] = get_vertex( draw, elts[i + 2] );
-
- first->tri( first, &prim );
- }
- break;
-
- case GL_TRIANGLE_STRIP:
- for (i = 0; i+2 < count; i++) {
- if (i & 1) {
- prim.v[0] = get_vertex( draw, elts[i + 1] );
- prim.v[1] = get_vertex( draw, elts[i + 0] );
- prim.v[2] = get_vertex( draw, elts[i + 2] );
- }
- else {
- prim.v[0] = get_vertex( draw, elts[i + 0] );
- prim.v[1] = get_vertex( draw, elts[i + 1] );
- prim.v[2] = get_vertex( draw, elts[i + 2] );
- }
-
- first->tri( first, &prim );
- }
- break;
-
- case GL_TRIANGLE_FAN:
- if (count >= 3) {
- prim.v[0] = get_vertex( draw, elts[0] );
- prim.v[1] = 0;
- prim.v[2] = get_vertex( draw, elts[1] );
-
- for (i = 0; i+2 < count; i++) {
- prim.v[1] = prim.v[2];
- prim.v[2] = get_vertex( draw, elts[i+2] );
-
- first->tri( first, &prim );
- }
- }
- break;
-
- case GL_QUADS:
- for (i = 0; i+3 < count; i += 4) {
- do_quad( first,
- get_vertex( draw, elts[i + 0] ),
- get_vertex( draw, elts[i + 1] ),
- get_vertex( draw, elts[i + 2] ),
- get_vertex( draw, elts[i + 3] ));
- }
- break;
-
- case GL_QUAD_STRIP:
- for (i = 0; i+3 < count; i += 2) {
- do_quad( first,
- get_vertex( draw, elts[i + 2] ),
- get_vertex( draw, elts[i + 0] ),
- get_vertex( draw, elts[i + 1] ),
- get_vertex( draw, elts[i + 3] ));
- }
- break;
-
-
- case GL_POLYGON:
- if (count >= 3) {
- prim.v[0] = 0;
- prim.v[1] = get_vertex( draw, elts[1] );
- prim.v[2] = get_vertex( draw, elts[0] );
-
- for (i = 0; i+2 < count; i++) {
- prim.v[0] = prim.v[1];
- prim.v[1] = get_vertex( draw, elts[i+2] );
-
- first->tri( first, &prim );
- }
- }
- break;
-
- default:
- assert(0);
- break;
- }
-}
-
-static void draw_prim( struct draw_context *draw,
- GLuint start,
- GLuint count )
-{
- struct prim_stage * const first = draw->generic->prim.first;
- struct prim_header prim;
- GLuint i;
-
-// _mesa_printf("%s (%d) %d/%d\n", __FUNCTION__, draw->prim, start, count );
-
- prim.det = 0; /* valid from cull stage onwards */
- prim.v[0] = 0;
- prim.v[1] = 0;
- prim.v[2] = 0;
-
- switch (draw->prim) {
- case GL_POINTS:
- for (i = 0; i < count; i ++) {
- prim.v[0] = get_vertex( draw, start + i );
- first->point( first, &prim );
- }
- break;
-
- case GL_LINES:
- for (i = 0; i+1 < count; i += 2) {
- prim.v[0] = get_vertex( draw, start + i + 0 );
- prim.v[1] = get_vertex( draw, start + i + 1 );
-
- first->line( first, &prim );
- }
- break;
-
- case GL_LINE_LOOP:
- if (count >= 2) {
- for (i = 1; i < count; i++) {
- prim.v[0] = get_vertex( draw, start + i - 1 );
- prim.v[1] = get_vertex( draw, start + i );
- first->line( first, &prim );
- }
-
- prim.v[0] = get_vertex( draw, start + count - 1 );
- prim.v[1] = get_vertex( draw, start + 0 );
- first->line( first, &prim );
- }
- break;
-
- case GL_LINE_STRIP:
- if (count >= 2) {
- prim.v[0] = 0;
- prim.v[1] = get_vertex( draw, start + 0 );
-
- for (i = 1; i < count; i++) {
- prim.v[0] = prim.v[1];
- prim.v[1] = get_vertex( draw, start + i );
-
- first->line( first, &prim );
- }
- }
- break;
-
- case GL_TRIANGLES:
- for (i = 0; i+2 < count; i += 3) {
- prim.v[0] = get_vertex( draw, start + i + 0 );
- prim.v[1] = get_vertex( draw, start + i + 1 );
- prim.v[2] = get_vertex( draw, start + i + 2 );
-
- first->tri( first, &prim );
- }
- break;
-
- case GL_TRIANGLE_STRIP:
- for (i = 0; i+2 < count; i++) {
- if (i & 1) {
- prim.v[0] = get_vertex( draw, start + i + 1 );
- prim.v[1] = get_vertex( draw, start + i + 0 );
- prim.v[2] = get_vertex( draw, start + i + 2 );
- }
- else {
- prim.v[0] = get_vertex( draw, start + i + 0 );
- prim.v[1] = get_vertex( draw, start + i + 1 );
- prim.v[2] = get_vertex( draw, start + i + 2 );
- }
-
- first->tri( first, &prim );
- }
- break;
-
- case GL_TRIANGLE_FAN:
- if (count >= 3) {
- prim.v[0] = get_vertex( draw, start + 0 );
- prim.v[1] = 0;
- prim.v[2] = get_vertex( draw, start + 1 );
-
- for (i = 0; i+2 < count; i++) {
- prim.v[1] = prim.v[2];
- prim.v[2] = get_vertex( draw, start + i + 2 );
-
- first->tri( first, &prim );
- }
- }
- break;
-
-
- case GL_QUADS:
- for (i = 0; i+3 < count; i += 4) {
- do_quad( first,
- get_vertex( draw, start + i + 0 ),
- get_vertex( draw, start + i + 1 ),
- get_vertex( draw, start + i + 2 ),
- get_vertex( draw, start + i + 3 ));
- }
- break;
-
- case GL_QUAD_STRIP:
- for (i = 0; i+3 < count; i += 2) {
- do_quad( first,
- get_vertex( draw, start + i + 2 ),
- get_vertex( draw, start + i + 0 ),
- get_vertex( draw, start + i + 1 ),
- get_vertex( draw, start + i + 3 ));
- }
- break;
-
- case GL_POLYGON:
- if (count >= 3) {
- prim.v[0] = 0;
- prim.v[1] = get_vertex( draw, start + 1 );
- prim.v[2] = get_vertex( draw, start + 0 );
-
- for (i = 0; i+2 < count; i++) {
- prim.v[0] = prim.v[1];
- prim.v[1] = get_vertex( draw, start + i + 2 );
-
- first->tri( first, &prim );
- }
- }
- break;
-
- default:
- assert(0);
- break;
- }
-}
-
-
-static void draw_release_vertices( struct draw_context *draw )
-{
- draw->generic->prim.first->end( draw->generic->prim.first );
-
- FREE(draw->verts);
- draw->verts = NULL;
-}
-
-
-struct header_dword {
- GLuint clipmask:12;
- GLuint edgeflag:1;
- GLuint pad:19;
-};
-
-
-static void
-build_vertex_headers( struct draw_context *draw,
- struct vertex_buffer *VB )
-{
- if (draw->header.storage == NULL) {
- draw->header.stride = sizeof(GLfloat);
- draw->header.size = 1;
- draw->header.storage = ALIGN_MALLOC( VB->Size * sizeof(GLfloat), 32 );
- draw->header.data = draw->header.storage;
- draw->header.count = 0;
- draw->header.flags = VEC_SIZE_1 | VEC_MALLOC;
- }
-
- /* Build vertex header attribute.
- *
- */
-
- {
- GLuint i;
- struct header_dword *header = (struct header_dword *)draw->header.storage;
-
- /* yes its a hack
- */
- assert(sizeof(*header) == sizeof(GLfloat));
-
- draw->header.count = VB->Count;
-
- if (VB->EdgeFlag) {
- for (i = 0; i < VB->Count; i++) {
- header[i].clipmask = VB->ClipMask[i];
- header[i].edgeflag = VB->EdgeFlag[i];
- header[i].pad = 0;
- }
- }
- else if (VB->ClipOrMask) {
- for (i = 0; i < VB->Count; i++) {
- header[i].clipmask = VB->ClipMask[i];
- header[i].edgeflag = 0;
- header[i].pad = 0;
- }
- }
- else {
- for (i = 0; i < VB->Count; i++) {
- header[i].clipmask = 0;
- header[i].edgeflag = 0;
- header[i].pad = 0;
- }
- }
- }
-
- VB->AttribPtr[VF_ATTRIB_VERTEX_HEADER] = &draw->header;
-}
-
-
-
-
-
-static GLuint draw_prim_info(GLenum mode, GLuint *first, GLuint *incr)
-{
- switch (mode) {
- case GL_POINTS:
- *first = 1;
- *incr = 1;
- return 0;
- case GL_LINES:
- *first = 2;
- *incr = 2;
- return 0;
- case GL_LINE_STRIP:
- *first = 2;
- *incr = 1;
- return 0;
- case GL_LINE_LOOP:
- *first = 2;
- *incr = 1;
- return 1;
- case GL_TRIANGLES:
- *first = 3;
- *incr = 3;
- return 0;
- case GL_TRIANGLE_STRIP:
- *first = 3;
- *incr = 1;
- return 0;
- case GL_TRIANGLE_FAN:
- case GL_POLYGON:
- *first = 3;
- *incr = 1;
- return 1;
- case GL_QUADS:
- *first = 4;
- *incr = 4;
- return 0;
- case GL_QUAD_STRIP:
- *first = 4;
- *incr = 2;
- return 0;
- default:
- assert(0);
- *first = 1;
- *incr = 1;
- return 0;
- }
-}
-
-
-static GLuint trim( GLuint count, GLuint first, GLuint incr )
-{
- if (count < first)
- return 0;
- else
- return count - (count - first) % incr;
-}
-
-
-/* This is a hack & will all go away.
- */
-void draw_vb(struct draw_context *draw,
- struct vertex_buffer *VB )
-{
- GLuint i;
-
- VB->AttribPtr[VF_ATTRIB_POS] = VB->NdcPtr;
- VB->AttribPtr[VF_ATTRIB_BFC0] = VB->ColorPtr[1];
- VB->AttribPtr[VF_ATTRIB_BFC1] = VB->SecondaryColorPtr[1];
- VB->AttribPtr[VF_ATTRIB_CLIP_POS] = VB->ClipPtr;
-
- /* Build vertex headers:
- */
- build_vertex_headers( draw, VB );
-
- draw->in_vb = 1;
-
- /* Allocate the vertices:
- */
- draw_allocate_vertices( draw, VB->Count );
-
- /* Bind the vb outputs:
- */
- vf_set_sources( draw->vf, VB->AttribPtr, 0 );
-
- /* Build the hardware or prim-pipe vertices:
- */
- vf_emit_vertices( draw->vf, VB->Count, draw->verts );
-
-
- for (i = 0; i < VB->PrimitiveCount; i++) {
-
- GLenum mode = VB->Primitive[i].mode;
- GLuint start = VB->Primitive[i].start;
- GLuint length, first, incr;
-
- /* Trim the primitive down to a legal size.
- */
- draw_prim_info( mode, &first, &incr );
- length = trim( VB->Primitive[i].count, first, incr );
-
- if (!length)
- continue;
-
- if (draw->prim != mode)
- draw_set_prim( draw, mode );
-
- if (VB->Elts) {
- draw_indexed_prim( draw,
- VB->Elts + start,
- length );
- }
- else {
- draw_prim( draw,
- start,
- length );
- }
- }
-
- draw_release_vertices( draw );
- draw->verts = NULL;
- draw->in_vb = 0;
-}
-
-void draw_set_viewport( struct draw_context *draw,
- const GLfloat *scale,
- const GLfloat *translate )
-{
- assert(!draw->in_vb);
- vf_set_vp_scale_translate( draw->vf, scale, translate );
-}
-
-
-
-struct draw_context *draw_create( struct generic_context *generic )
-{
- struct draw_context *draw = CALLOC_STRUCT( draw_context );
- draw->generic = generic;
- draw->vf = vf_create( GL_TRUE );
-
- return draw;
-}
-
-
-void draw_destroy( struct draw_context *draw )
-{
- if (draw->header.storage)
- ALIGN_FREE( draw->header.storage );
-
- vf_destroy( draw->vf );
-
- FREE( draw );
-}
-
-#define EMIT_ATTR( ATTR, STYLE ) \
-do { \
- draw->attrs[draw->nr_attrs].attrib = ATTR; \
- draw->attrs[draw->nr_attrs].format = STYLE; \
- draw->nr_attrs++; \
-} while (0)
-
-
-void draw_set_vertex_attributes( struct draw_context *draw,
- const GLuint *attrs,
- GLuint nr_attrs )
-{
- GLuint i;
-
- draw->nr_attrs = 0;
-
- EMIT_ATTR(VF_ATTRIB_VERTEX_HEADER, EMIT_1F);
- EMIT_ATTR(VF_ATTRIB_CLIP_POS, EMIT_4F);
-
- assert(attrs[0] == VF_ATTRIB_POS);
- EMIT_ATTR(attrs[0], EMIT_4F_VIEWPORT);
-
- for (i = 1; i < nr_attrs; i++)
- EMIT_ATTR(attrs[i], EMIT_4F);
-
- draw->vertex_size = vf_set_vertex_attributes( draw->vf, draw->attrs, draw->nr_attrs, 0 );
-}
-
-
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