diff options
Diffstat (limited to 'src/mesa/pipe/softpipe/g_draw.c')
-rw-r--r-- | src/mesa/pipe/softpipe/g_draw.c | 696 |
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 ); -} - - |