-/* $Id: t_vb_render.c,v 1.4 2000/12/28 22:11:06 keithw Exp $ */
-
/*
* Mesa 3-D graphics library
- * Version: 3.5
+ * Version: 6.5
*
- * Copyright (C) 1999-2000 Brian Paul All Rights Reserved.
+ * Copyright (C) 1999-2005 Brian Paul 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"),
* 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 NONINFRINGEMENT. IN NO EVENT SHALL
- * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * THE AUTHORS 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>
*/
* This file makes calls to project vertices and to the point, line
* and triangle rasterizers via the function pointers:
*
- * context->Driver.BuildProjectedVertices()
- * context->Driver.PointsFunc()
- * context->Driver.LineFunc()
- * context->Driver.TriangleFunc()
- * context->Driver.QuadFunc()
+ * context->Driver.Render.*
*
*/
-#include "glheader.h"
-#include "context.h"
-#include "colormac.h"
-#include "macros.h"
-#include "mem.h"
-#include "mtypes.h"
-#include "mmath.h"
-
-#include "math/m_matrix.h"
+#include "main/glheader.h"
+#include "main/context.h"
+#include "main/enums.h"
+#include "main/macros.h"
+#include "main/imports.h"
+#include "main/mtypes.h"
#include "math/m_xform.h"
#include "t_pipeline.h"
-typedef GLuint (*interp_func)( GLcontext *ctx,
- GLfloat t, GLuint in, GLuint out,
- GLboolean force_boundary );
-
-typedef void (*clip_line_func)( GLcontext *ctx,
- GLuint i, GLuint j,
- GLubyte mask);
-
-typedef void (*clip_poly_func)( GLcontext *ctx,
- GLuint n, GLuint vlist[],
- GLuint pv, GLubyte mask );
-
-
-typedef void (*render_func)( GLcontext *ctx,
- GLuint start,
- GLuint count,
- GLuint flags );
-
-
-
-struct render_stage_data {
-
- /* Clipping functions for current state.
- */
- interp_func interp; /* Clip interpolation function */
- GLuint _ClipInputs; /* Inputs referenced by interpfunc */
-
-};
-
-#define RENDER_STAGE_DATA(stage) ((struct render_stage_data *)stage->private)
-
-static void render_poly_pv_raw_elts( GLcontext *ctx,
- GLuint start,
- GLuint count,
- GLuint flags,
- GLuint pv );
-
-/**********************************************************************/
-/* Interpolate between pairs of vertices */
-/**********************************************************************/
-
-
-#define INTERP_RGBA 0x1
-#define INTERP_TEX 0x2
-#define INTERP_INDEX 0x4
-#define INTERP_SPEC 0x8
-#define INTERP_FOG 0x10
-#define INTERP_EDGE 0x20
-#define MAX_INTERP 0x40
-
-
-#define LINTERP_SZ( t, vec, to, a, b, sz ) \
-do { \
- switch (sz) { \
- case 4: vec[to][3] = LINTERP( t, vec[a][3], vec[b][3] ); \
- case 3: vec[to][2] = LINTERP( t, vec[a][2], vec[b][2] ); \
- case 2: vec[to][1] = LINTERP( t, vec[a][1], vec[b][1] ); \
- case 1: vec[to][0] = LINTERP( t, vec[a][0], vec[b][0] ); \
- } \
-} while(0)
-
-
-#if 1
-
-#define LINTERP_RGBA(nr, t, out, a, b) { \
- int i; \
- for (i = 0; i < nr; i++) { \
- GLfloat fa = CHAN_TO_FLOAT(a[i]); \
- GLfloat fb = CHAN_TO_FLOAT(b[i]); \
- GLfloat fo = LINTERP(t, fa, fb); \
- FLOAT_COLOR_TO_CHAN(out[i], fo); \
- } \
-}
-
-#else
-
-#define LINTERP_RGBA(nr, t, out, a, b) { \
- int n; \
- const GLuint ti = FloatToInt(t*256.0F); \
- const GLubyte *Ib = (const GLubyte *)&a[0]; \
- const GLubyte *Jb = (const GLubyte *)&b[0]; \
- GLubyte *Ob = (GLubyte *)&out[0]; \
- \
- for (n = 0 ; n < nr ; n++) \
- Ob[n] = (GLubyte) (Ib[n] + ((ti * (Jb[n] - Ib[n]))/256)); \
-}
-
-#endif
-
-
-
-static interp_func interp_tab[0x80];
-
-
-#define IND (INTERP_RGBA)
-#define NAME interp_RGBA
-#include "t_vb_interptmp.h"
-
-#define IND (INTERP_RGBA|INTERP_SPEC)
-#define NAME interp_RGBA_SPEC
-#include "t_vb_interptmp.h"
-
-#define IND (INTERP_RGBA|INTERP_FOG)
-#define NAME interp_RGBA_FOG
-#include "t_vb_interptmp.h"
-
-#define IND (INTERP_RGBA|INTERP_SPEC|INTERP_FOG)
-#define NAME interp_RGBA_SPEC_FOG
-#include "t_vb_interptmp.h"
-
-#define IND (INTERP_RGBA|INTERP_TEX)
-#define NAME interp_RGBA_TEX
-#include "t_vb_interptmp.h"
-
-#define IND (INTERP_RGBA|INTERP_SPEC|INTERP_TEX)
-#define NAME interp_RGBA_SPEC_TEX
-#include "t_vb_interptmp.h"
-
-#define IND (INTERP_RGBA|INTERP_FOG|INTERP_TEX)
-#define NAME interp_RGBA_FOG_TEX
-#include "t_vb_interptmp.h"
-
-#define IND (INTERP_RGBA|INTERP_SPEC|INTERP_FOG|INTERP_TEX)
-#define NAME interp_RGBA_SPEC_FOG_TEX
-#include "t_vb_interptmp.h"
-
-#define IND (INTERP_INDEX)
-#define NAME interp_INDEX
-#include "t_vb_interptmp.h"
-
-#define IND (INTERP_FOG|INTERP_INDEX)
-#define NAME interp_FOG_INDEX
-#include "t_vb_interptmp.h"
-
-#define IND (INTERP_TEX|INTERP_INDEX)
-#define NAME interp_TEX_INDEX
-#include "t_vb_interptmp.h"
-
-#define IND (INTERP_FOG|INTERP_TEX|INTERP_INDEX)
-#define NAME interp_FOG_TEX_INDEX
-#include "t_vb_interptmp.h"
-
-#define IND (INTERP_RGBA|INTERP_EDGE)
-#define NAME interp_RGBA_EDGE
-#include "t_vb_interptmp.h"
-
-#define IND (INTERP_RGBA|INTERP_SPEC|INTERP_EDGE)
-#define NAME interp_RGBA_SPEC_EDGE
-#include "t_vb_interptmp.h"
-
-#define IND (INTERP_RGBA|INTERP_FOG|INTERP_EDGE)
-#define NAME interp_RGBA_FOG_EDGE
-#include "t_vb_interptmp.h"
-
-#define IND (INTERP_RGBA|INTERP_SPEC|INTERP_FOG|INTERP_EDGE)
-#define NAME interp_RGBA_SPEC_FOG_EDGE
-#include "t_vb_interptmp.h"
-
-#define IND (INTERP_RGBA|INTERP_TEX|INTERP_EDGE)
-#define NAME interp_RGBA_TEX_EDGE
-#include "t_vb_interptmp.h"
-
-#define IND (INTERP_RGBA|INTERP_SPEC|INTERP_TEX|INTERP_EDGE)
-#define NAME interp_RGBA_SPEC_TEX_EDGE
-#include "t_vb_interptmp.h"
-
-#define IND (INTERP_RGBA|INTERP_FOG|INTERP_TEX|INTERP_EDGE)
-#define NAME interp_RGBA_FOG_TEX_EDGE
-#include "t_vb_interptmp.h"
-
-#define IND (INTERP_RGBA|INTERP_SPEC|INTERP_FOG|INTERP_TEX|INTERP_EDGE)
-#define NAME interp_RGBA_SPEC_FOG_TEX_EDGE
-#include "t_vb_interptmp.h"
-
-#define IND (INTERP_INDEX|INTERP_EDGE)
-#define NAME interp_INDEX_EDGE
-#include "t_vb_interptmp.h"
-
-#define IND (INTERP_FOG|INTERP_INDEX|INTERP_EDGE)
-#define NAME interp_FOG_INDEX_EDGE
-#include "t_vb_interptmp.h"
-
-#define IND (INTERP_TEX|INTERP_INDEX|INTERP_EDGE)
-#define NAME interp_TEX_INDEX_EDGE
-#include "t_vb_interptmp.h"
-
-#define IND (INTERP_FOG|INTERP_TEX|INTERP_INDEX|INTERP_EDGE)
-#define NAME interp_FOG_TEX_INDEX_EDGE
-#include "t_vb_interptmp.h"
-
-
-
-static GLuint interp_invalid( GLcontext *ctx,
- GLfloat t,
- GLuint in, GLuint out,
- GLboolean boundary )
-{
- (void)(ctx && t && in && out && boundary);
- fprintf(stderr, "Invalid interpolation function in t_vbrender.c\n");
- return in;
-}
-
-
-static void interp_init( void )
-{
- GLuint i;
-
- /* Use the maximal function as the default. I don't believe any of
- * the non-implemented combinations are reachable, but this gives
- * some safety from crashes.
- */
- for (i = 0 ; i < Elements(interp_tab) ; i++)
- interp_tab[i] = interp_invalid;
-
- interp_tab[INTERP_RGBA] = interp_RGBA;
- interp_tab[INTERP_RGBA|INTERP_SPEC] = interp_RGBA_SPEC;
- interp_tab[INTERP_RGBA|INTERP_FOG] = interp_RGBA_FOG;
- interp_tab[INTERP_RGBA|INTERP_SPEC|INTERP_FOG] = interp_RGBA_SPEC_FOG;
- interp_tab[INTERP_RGBA|INTERP_TEX] = interp_RGBA_TEX;
- interp_tab[INTERP_RGBA|INTERP_SPEC|INTERP_TEX] = interp_RGBA_SPEC_TEX;
- interp_tab[INTERP_RGBA|INTERP_FOG|INTERP_TEX] = interp_RGBA_FOG_TEX;
- interp_tab[INTERP_RGBA|INTERP_SPEC|INTERP_FOG|INTERP_TEX] = interp_RGBA_SPEC_FOG_TEX;
- interp_tab[INTERP_INDEX] = interp_INDEX;
- interp_tab[INTERP_FOG|INTERP_INDEX] = interp_FOG_INDEX;
- interp_tab[INTERP_TEX|INTERP_INDEX] = interp_TEX_INDEX;
- interp_tab[INTERP_FOG|INTERP_TEX|INTERP_INDEX] = interp_FOG_TEX_INDEX;
- interp_tab[INTERP_RGBA|INTERP_EDGE] = interp_RGBA_EDGE;
- interp_tab[INTERP_RGBA|INTERP_SPEC|INTERP_EDGE] = interp_RGBA_SPEC_EDGE;
- interp_tab[INTERP_RGBA|INTERP_FOG|INTERP_EDGE] = interp_RGBA_FOG_EDGE;
- interp_tab[INTERP_RGBA|INTERP_SPEC|INTERP_FOG|INTERP_EDGE] = interp_RGBA_SPEC_FOG_EDGE;
- interp_tab[INTERP_RGBA|INTERP_TEX|INTERP_EDGE] = interp_RGBA_TEX_EDGE;
- interp_tab[INTERP_RGBA|INTERP_SPEC|INTERP_TEX|INTERP_EDGE] = interp_RGBA_SPEC_TEX_EDGE;
- interp_tab[INTERP_RGBA|INTERP_FOG|INTERP_TEX|INTERP_EDGE] = interp_RGBA_FOG_TEX_EDGE;
- interp_tab[INTERP_RGBA|INTERP_SPEC|INTERP_FOG|INTERP_TEX|INTERP_EDGE] = interp_RGBA_SPEC_FOG_TEX_EDGE;
- interp_tab[INTERP_INDEX|INTERP_EDGE] = interp_INDEX_EDGE;
- interp_tab[INTERP_FOG|INTERP_INDEX|INTERP_EDGE] = interp_FOG_INDEX_EDGE;
- interp_tab[INTERP_TEX|INTERP_INDEX|INTERP_EDGE] = interp_TEX_INDEX_EDGE;
- interp_tab[INTERP_FOG|INTERP_TEX|INTERP_INDEX|INTERP_EDGE] = interp_FOG_TEX_INDEX_EDGE;
-}
-
/**********************************************************************/
/* Clip single primitives */
/**********************************************************************/
-#if 0
-#define NEGATIVE(x) ((*(int *)&x)<0)
-#define DIFFERENT_SIGNS(a,b) ((a*b) < 0)
-#else
-#define NEGATIVE(x) (x < 0)
-#define DIFFERENT_SIGNS(a,b) ((a*b) < 0)
-#endif
-
#define W(i) coord[i][3]
#define Z(i) coord[i][2]
#define Y(i) coord[i][1]
#define TAG(x) x##_4
#include "t_vb_cliptmp.h"
-#define W(i) 1.0
-#define Z(i) coord[i][2]
-#define Y(i) coord[i][1]
-#define X(i) coord[i][0]
-#define SIZE 3
-#define TAG(x) x##_3
-#include "t_vb_cliptmp.h"
-
-#define W(i) 1.0
-#define Z(i) 0.0
-#define Y(i) coord[i][1]
-#define X(i) coord[i][0]
-#define SIZE 2
-#define TAG(x) x##_2
-#include "t_vb_cliptmp.h"
-
-static clip_poly_func clip_poly_tab[5] = {
- 0,
- 0,
- viewclip_polygon_2,
- viewclip_polygon_3,
- viewclip_polygon_4
-};
-
-static clip_line_func clip_line_tab[5] = {
- 0,
- 0,
- viewclip_line_2,
- viewclip_line_3,
- viewclip_line_4
-};
-
/**********************************************************************/
-/* Clip and render single primitives */
+/* Clip and render whole begin/end objects */
/**********************************************************************/
+#define NEED_EDGEFLAG_SETUP (ctx->Polygon.FrontMode != GL_FILL || ctx->Polygon.BackMode != GL_FILL)
+#define EDGEFLAG_GET(idx) VB->EdgeFlag[idx]
+#define EDGEFLAG_SET(idx, val) VB->EdgeFlag[idx] = val
-static INLINE void draw_line(GLcontext *ctx, GLuint v1, GLuint v2 )
-{
- struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb;
- GLubyte c1 = VB->ClipMask[v1], c2 = VB->ClipMask[v2];
- GLubyte ormask = c1|c2;
- if (!ormask)
- ctx->Driver.LineFunc( ctx, v1, v2, v2 );
- else if (!(c1 & c2 & 0x3f))
- clip_line_tab[VB->ClipPtr->size]( ctx, v1, v2, ormask );
-}
-
-static INLINE void draw_triangle(GLcontext *ctx,
- GLuint v1, GLuint v2, GLuint v3,
- GLuint pv )
-{
- struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb;
- GLubyte c1 = VB->ClipMask[v1], c2 = VB->ClipMask[v2], c3 = VB->ClipMask[v3];
- GLubyte ormask = c1|c2|c3;
- if (!ormask)
- ctx->Driver.TriangleFunc( ctx, v1, v2, v3, pv );
- else if (!(c1 & c2 & c3 & 0x3f)) {
- GLuint vlist[MAX_CLIPPED_VERTICES];
- ASSIGN_3V(vlist, v1, v2, v3 );
- clip_poly_tab[VB->ClipPtr->size]( ctx, 3, vlist, pv, ormask );
- }
-}
-
-
-static INLINE void draw_quad( GLcontext *ctx,
- GLuint v1, GLuint v2, GLuint v3,
- GLuint v4, GLuint pv )
-{
- struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb;
- GLubyte c1 = VB->ClipMask[v1], c2 = VB->ClipMask[v2];
- GLubyte c3 = VB->ClipMask[v3], c4 = VB->ClipMask[v4];
- GLubyte ormask = c1|c2|c3|c4;
- if (!ormask)
- ctx->Driver.QuadFunc( ctx, v1, v2, v3, v4, pv );
- else if (!(c1 & c2 & c3 & c4 & 0x3f)) {
- GLuint vlist[MAX_CLIPPED_VERTICES];
- ASSIGN_4V(vlist, v1, v2, v3, v4 );
- clip_poly_tab[VB->ClipPtr->size]( ctx, 4, vlist, pv, ormask );
- }
-}
-
-
-/**********************************************************************/
-/* Clip and render whole begin/end objects */
-/**********************************************************************/
-
-#define NEED_EDGEFLAG_SETUP (ctx->_TriangleCaps & DD_TRI_UNFILLED)
-#define EDGEFLAG_GET(idx) VB->EdgeFlagPtr->data[idx]
-#define EDGEFLAG_SET(idx, val) VB->EdgeFlagPtr->data[idx] = val
+/* This does NOT include the CLIP_USER_BIT! */
+#define CLIPMASK (CLIP_FRUSTUM_BITS | CLIP_CULL_BIT)
-/* Vertices, no clipping.
+/* Vertices, with the possibility of clipping.
*/
#define RENDER_POINTS( start, count ) \
- ctx->Driver.PointsFunc( ctx, start, count-1 )
+ tnl->Driver.Render.Points( ctx, start, count )
-#define RENDER_LINE( i1, i ) \
- ctx->Driver.LineFunc( ctx, i1, i, i )
+#define RENDER_LINE( v1, v2 ) \
+do { \
+ GLubyte c1 = mask[v1], c2 = mask[v2]; \
+ GLubyte ormask = c1|c2; \
+ if (!ormask) \
+ LineFunc( ctx, v1, v2 ); \
+ else if (!(c1 & c2 & CLIPMASK)) \
+ clip_line_4( ctx, v1, v2, ormask ); \
+} while (0)
-#define RENDER_TRI( i2, i1, i, pv, parity ) \
+#define RENDER_TRI( v1, v2, v3 ) \
do { \
- if (parity) \
- ctx->Driver.TriangleFunc( ctx, i1, i2, i, pv ); \
- else \
- ctx->Driver.TriangleFunc( ctx, i2, i1, i, pv ); \
+ GLubyte c1 = mask[v1], c2 = mask[v2], c3 = mask[v3]; \
+ GLubyte ormask = c1|c2|c3; \
+ if (!ormask) \
+ TriangleFunc( ctx, v1, v2, v3 ); \
+ else if (!(c1 & c2 & c3 & CLIPMASK)) \
+ clip_tri_4( ctx, v1, v2, v3, ormask ); \
} while (0)
-#define RENDER_QUAD( i3, i2, i1, i, pv ) \
- ctx->Driver.QuadFunc( ctx, i3, i2, i1, i, pv );
-
-#define TAG(x) x##_raw
+#define RENDER_QUAD( v1, v2, v3, v4 ) \
+do { \
+ GLubyte c1 = mask[v1], c2 = mask[v2]; \
+ GLubyte c3 = mask[v3], c4 = mask[v4]; \
+ GLubyte ormask = c1|c2|c3|c4; \
+ if (!ormask) \
+ QuadFunc( ctx, v1, v2, v3, v4 ); \
+ else if (!(c1 & c2 & c3 & c4 & CLIPMASK)) \
+ clip_quad_4( ctx, v1, v2, v3, v4, ormask ); \
+} while (0)
-#define LOCAL_VARS \
- struct vertex_buffer *VB = &(TNL_CONTEXT(ctx)->vb); \
- (void) VB;
-#define RESET_STIPPLE ctx->Driver.ResetLineStipple( ctx )
-#define RESET_OCCLUSION ctx->OcclusionResult = GL_TRUE;
+#define LOCAL_VARS \
+ TNLcontext *tnl = TNL_CONTEXT(ctx); \
+ struct vertex_buffer *VB = &tnl->vb; \
+ const GLuint * const elt = VB->Elts; \
+ const GLubyte *mask = VB->ClipMask; \
+ const GLuint sz = VB->ClipPtr->size; \
+ const tnl_line_func LineFunc = tnl->Driver.Render.Line; \
+ const tnl_triangle_func TriangleFunc = tnl->Driver.Render.Triangle; \
+ const tnl_quad_func QuadFunc = tnl->Driver.Render.Quad; \
+ const GLboolean stipple = ctx->Line.StippleFlag; \
+ (void) (LineFunc && TriangleFunc && QuadFunc); \
+ (void) elt; (void) mask; (void) sz; (void) stipple;
+
+#define TAG(x) clip_##x##_verts
+#define INIT(x) tnl->Driver.Render.PrimitiveNotify( ctx, x )
+#define RESET_STIPPLE if (stipple) tnl->Driver.Render.ResetLineStipple( ctx )
#define PRESERVE_VB_DEFS
#include "t_vb_rendertmp.h"
-/* Elts, no clipping.
+
+/* Elts, with the possibility of clipping.
*/
#undef ELT
#undef TAG
-#undef LOCAL_VARS
-#define TAG(x) x##_raw_elts
#define ELT(x) elt[x]
-#define LOCAL_VARS \
- struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb; \
- const GLuint * const elt = VB->Elts; \
- (void) elt;
+#define TAG(x) clip_##x##_elts
#include "t_vb_rendertmp.h"
+/* TODO: do this for all primitives, verts and elts:
+ */
+static void clip_elt_triangles( struct gl_context *ctx,
+ GLuint start,
+ GLuint count,
+ GLuint flags )
+{
+ TNLcontext *tnl = TNL_CONTEXT(ctx);
+ tnl_render_func render_tris = tnl->Driver.Render.PrimTabElts[GL_TRIANGLES];
+ struct vertex_buffer *VB = &tnl->vb;
+ const GLuint * const elt = VB->Elts;
+ GLubyte *mask = VB->ClipMask;
+ GLuint last = count-2;
+ GLuint j;
+ (void) flags;
+
+ tnl->Driver.Render.PrimitiveNotify( ctx, GL_TRIANGLES );
+
+ for (j=start; j < last; j+=3 ) {
+ GLubyte c1 = mask[elt[j]];
+ GLubyte c2 = mask[elt[j+1]];
+ GLubyte c3 = mask[elt[j+2]];
+ GLubyte ormask = c1|c2|c3;
+ if (ormask) {
+ if (start < j)
+ render_tris( ctx, start, j, 0 );
+ if (!(c1&c2&c3&CLIPMASK))
+ clip_tri_4( ctx, elt[j], elt[j+1], elt[j+2], ormask );
+ start = j+3;
+ }
+ }
+ if (start < j)
+ render_tris( ctx, start, j, 0 );
+}
+/**********************************************************************/
+/* Render whole begin/end objects */
+/**********************************************************************/
-/* Vertices, with the possibility of clipping.
- */
-#define RENDER_POINTS( start, count ) \
- ctx->Driver.PointsFunc( ctx, start, count-1 )
+#define NEED_EDGEFLAG_SETUP (ctx->Polygon.FrontMode != GL_FILL || ctx->Polygon.BackMode != GL_FILL)
+#define EDGEFLAG_GET(idx) VB->EdgeFlag[idx]
+#define EDGEFLAG_SET(idx, val) VB->EdgeFlag[idx] = val
-#define RENDER_LINE( i1, i ) \
- draw_line( ctx, i1, i )
-#define RENDER_TRI( i2, i1, i, pv, parity) \
-do { \
- GLuint e2=i2, e1=i1; \
- if (parity) { GLuint t=e2; e2=e1; e1=t; } \
- draw_triangle(ctx,e2,e1,i,pv); \
-} while (0)
+/* Vertices, no clipping.
+ */
+#define RENDER_POINTS( start, count ) \
+ tnl->Driver.Render.Points( ctx, start, count )
-#define RENDER_QUAD( i3, i2, i1, i, pv) \
- draw_quad(ctx,i3,i2,i1,i,pv)
+#define RENDER_LINE( v1, v2 ) \
+ LineFunc( ctx, v1, v2 )
+#define RENDER_TRI( v1, v2, v3 ) \
+ TriangleFunc( ctx, v1, v2, v3 )
-#define LOCAL_VARS \
- struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb; \
- (void)VB;
+#define RENDER_QUAD( v1, v2, v3, v4 ) \
+ QuadFunc( ctx, v1, v2, v3, v4 )
-#define TAG(x) x##_clipped
-#define RESET_STIPPLE ctx->Driver.ResetLineStipple( ctx )
-#define RESET_OCCLUSION ctx->OcclusionResult = GL_TRUE;
+#define TAG(x) _tnl_##x##_verts
+
+#define LOCAL_VARS \
+ TNLcontext *tnl = TNL_CONTEXT(ctx); \
+ struct vertex_buffer *VB = &tnl->vb; \
+ const GLuint * const elt = VB->Elts; \
+ const tnl_line_func LineFunc = tnl->Driver.Render.Line; \
+ const tnl_triangle_func TriangleFunc = tnl->Driver.Render.Triangle; \
+ const tnl_quad_func QuadFunc = tnl->Driver.Render.Quad; \
+ const GLboolean stipple = ctx->Line.StippleFlag; \
+ (void) (LineFunc && TriangleFunc && QuadFunc); \
+ (void) elt; (void) stipple
+
+#define RESET_STIPPLE if (stipple) tnl->Driver.Render.ResetLineStipple( ctx )
+#define INIT(x) tnl->Driver.Render.PrimitiveNotify( ctx, x )
+#define RENDER_TAB_QUALIFIER
#define PRESERVE_VB_DEFS
#include "t_vb_rendertmp.h"
-
-/* Elts, with the possibility of clipping.
+/* Elts, no clipping.
*/
#undef ELT
-#undef TAG
-#undef LOCAL_VARS
+#define TAG(x) _tnl_##x##_elts
#define ELT(x) elt[x]
-#define LOCAL_VARS \
- struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb; \
- const GLuint * const elt = VB->Elts; \
- (void) elt;
-#define TAG(x) x##_clipped_elts
-
#include "t_vb_rendertmp.h"
-
/**********************************************************************/
-/* Clip and render whole vertex buffers */
+/* Helper functions for drivers */
/**********************************************************************/
+void _tnl_RenderClippedPolygon( struct gl_context *ctx, const GLuint *elts, GLuint n )
+{
+ TNLcontext *tnl = TNL_CONTEXT(ctx);
+ struct vertex_buffer *VB = &tnl->vb;
+ GLuint *tmp = VB->Elts;
+
+ VB->Elts = (GLuint *)elts;
+ tnl->Driver.Render.PrimTabElts[GL_POLYGON]( ctx, 0, n, PRIM_BEGIN|PRIM_END );
+ VB->Elts = tmp;
+}
-static GLboolean run_render( GLcontext *ctx,
- struct gl_pipeline_stage *stage )
+void _tnl_RenderClippedLine( struct gl_context *ctx, GLuint ii, GLuint jj )
{
TNLcontext *tnl = TNL_CONTEXT(ctx);
- struct vertex_buffer *VB = &tnl->vb;
- GLuint new_inputs = stage->changed_inputs;
- render_func *tab;
- GLint pass = 0;
+ tnl->Driver.Render.Line( ctx, ii, jj );
+}
-/* return GL_FALSE; */
- VB->interpfunc = (void *)RENDER_STAGE_DATA(stage)->interp;
-
- if (new_inputs) {
- GLuint importable = new_inputs & VB->importable_data;
- GLuint interested = 0;
- if (VB->ClipOrMask)
- interested = ~0;
-
- if (ctx->_TriangleCaps & DD_TRI_UNFILLED)
- interested |= VERT_EDGE;
-
- importable &= interested;
+/**********************************************************************/
+/* Clip and render whole vertex buffers */
+/**********************************************************************/
- if (importable)
- VB->import_data( ctx, importable, VEC_NOT_WRITEABLE|VEC_BAD_STRIDE);
- if (ctx->Driver.BuildProjectedVertices)
- ctx->Driver.BuildProjectedVertices( ctx, 0, VB->Count, new_inputs);
- }
+static GLboolean run_render( struct gl_context *ctx,
+ struct tnl_pipeline_stage *stage )
+{
+ TNLcontext *tnl = TNL_CONTEXT(ctx);
+ struct vertex_buffer *VB = &tnl->vb;
+ tnl_render_func *tab;
+ GLint pass = 0;
- /* Rendering is considered a side-effect, and must be repeated each
- * time the stage is run, even if no inputs have changed.
+ /* Allow the drivers to lock before projected verts are built so
+ * that window coordinates are guarenteed not to change before
+ * rendering.
*/
- if (VB->Elts) {
- tab = VB->ClipOrMask ? render_tab_clipped_elts : render_tab_raw_elts;
- } else {
- tab = VB->ClipOrMask ? render_tab_clipped : render_tab_raw;
+ ASSERT(tnl->Driver.Render.Start);
+
+ tnl->Driver.Render.Start( ctx );
+
+ ASSERT(tnl->Driver.Render.BuildVertices);
+ ASSERT(tnl->Driver.Render.PrimitiveNotify);
+ ASSERT(tnl->Driver.Render.Points);
+ ASSERT(tnl->Driver.Render.Line);
+ ASSERT(tnl->Driver.Render.Triangle);
+ ASSERT(tnl->Driver.Render.Quad);
+ ASSERT(tnl->Driver.Render.ResetLineStipple);
+ ASSERT(tnl->Driver.Render.Interp);
+ ASSERT(tnl->Driver.Render.CopyPV);
+ ASSERT(tnl->Driver.Render.ClippedLine);
+ ASSERT(tnl->Driver.Render.ClippedPolygon);
+ ASSERT(tnl->Driver.Render.Finish);
+
+ tnl->Driver.Render.BuildVertices( ctx, 0, VB->Count, ~0 );
+
+ if (VB->ClipOrMask) {
+ tab = VB->Elts ? clip_render_tab_elts : clip_render_tab_verts;
+ clip_render_tab_elts[GL_TRIANGLES] = clip_elt_triangles;
+ }
+ else {
+ tab = (VB->Elts ?
+ tnl->Driver.Render.PrimTabElts :
+ tnl->Driver.Render.PrimTabVerts);
}
-
- if (ctx->Driver.RenderStart)
- ctx->Driver.RenderStart( ctx );
do
{
- GLuint i, length, flags = 0;
- for (i = 0 ; !(flags & PRIM_LAST) ; i += length)
+ GLuint i;
+
+ for (i = 0 ; i < VB->PrimitiveCount ; i++)
{
- flags = VB->Primitive[i];
- length= VB->PrimitiveLength[i];
- ASSERT(length || (flags & PRIM_LAST));
- ASSERT((flags & PRIM_MODE_MASK) <= GL_POLYGON+1);
-/* fprintf(stderr, "render %s %d..%d\n", */
-/* _mesa_prim_name[flags & PRIM_MODE_MASK], */
-/* i, i+length); */
+ GLuint prim = _tnl_translate_prim(&VB->Primitive[i]);
+ GLuint start = VB->Primitive[i].start;
+ GLuint length = VB->Primitive[i].count;
+
+ assert((prim & PRIM_MODE_MASK) <= GL_POLYGON);
+
+ if (MESA_VERBOSE & VERBOSE_PRIMS)
+ _mesa_debug(NULL, "MESA prim %s %d..%d\n",
+ _mesa_lookup_enum_by_nr(prim & PRIM_MODE_MASK),
+ start, start+length);
+
if (length)
- tab[flags & PRIM_MODE_MASK]( ctx, i, i + length, flags );
+ tab[prim & PRIM_MODE_MASK]( ctx, start, start + length, prim );
}
- } while (ctx->Driver.MultipassFunc &&
- ctx->Driver.MultipassFunc( ctx, ++pass ));
+ } while (tnl->Driver.Render.Multipass &&
+ tnl->Driver.Render.Multipass( ctx, ++pass ));
- if (ctx->Driver.RenderFinish)
- ctx->Driver.RenderFinish( ctx );
+ tnl->Driver.Render.Finish( ctx );
return GL_FALSE; /* finished the pipe */
}
-/* Quite a bit of work involved in finding out the inputs for the
- * render stage. This function also identifies which vertex
- * interpolation function to use, as these are essentially the same
- * question.
- */
-static void check_render( GLcontext *ctx, struct gl_pipeline_stage *stage )
-{
- struct render_stage_data *store = RENDER_STAGE_DATA(stage);
- GLuint interp = 0;
- GLuint inputs = VERT_CLIP;
- GLuint i;
-
- if (ctx->Visual.RGBAflag)
- {
- interp |= INTERP_RGBA;
- inputs |= VERT_RGBA;
-
- if (ctx->_TriangleCaps & DD_SEPERATE_SPECULAR) {
- interp |= INTERP_SPEC;
- inputs |= VERT_SPEC_RGB;
- }
-
- if (ctx->Texture._ReallyEnabled) {
- interp |= INTERP_TEX;
-
- for (i = 0 ; i < ctx->Const.MaxTextureUnits ; i++) {
- if (ctx->Texture.Unit[i]._ReallyEnabled)
- inputs |= VERT_TEX(i);
- }
- }
- }
- else
- {
- interp |= INTERP_INDEX;
- inputs |= VERT_INDEX;
- }
-
- if (ctx->Point._Attenuated)
- inputs |= VERT_POINT_SIZE;
-
- /* How do drivers turn this off?
- */
- if (ctx->Fog.Enabled) {
- interp |= INTERP_FOG;
- inputs |= VERT_FOG_COORD;
- }
-
- if (ctx->_TriangleCaps & DD_TRI_UNFILLED) {
- inputs |= VERT_EDGE;
- interp |= INTERP_EDGE;
- }
-
- if (ctx->RenderMode==GL_FEEDBACK) {
- interp |= INTERP_TEX;
- inputs |= VERT_TEX_ANY;
- }
-
- store->interp = interp_tab[interp];
- stage->inputs = inputs;
-}
-/* Called the first time stage->check() is invoked.
- */
-static void alloc_render_data( GLcontext *ctx,
- struct gl_pipeline_stage *stage )
+const struct tnl_pipeline_stage _tnl_render_stage =
{
- struct render_stage_data *store;
- static GLboolean first_time = 1;
-
- if (first_time) {
- interp_init();
- first_time = 0;
- }
-
- stage->private = MALLOC(sizeof(*store));
- if (!stage->private)
- return;
-
- /* Now do the check.
- */
- stage->check = check_render;
- stage->check( ctx, stage );
-}
-
-
-
-static void dtr( struct gl_pipeline_stage *stage )
-{
- struct render_stage_data *store = RENDER_STAGE_DATA(stage);
- if (store) {
- FREE( store );
- stage->private = 0;
- }
-}
-
-
-const struct gl_pipeline_stage _tnl_render_stage =
-{
- "render",
- (_NEW_BUFFERS |
- _DD_NEW_SEPERATE_SPECULAR |
- _NEW_TEXTURE|
- _NEW_LIGHT|
- _NEW_POINT|
- _NEW_FOG|
- _DD_NEW_TRI_UNFILLED |
- _NEW_RENDERMODE), /* re-check (new inputs, interp function) */
- 0, /* re-run (always runs) */
- GL_TRUE, /* active */
- 0, 0, /* inputs (set in check_render), outputs */
- 0, 0, /* changed_inputs, private */
- dtr, /* destructor */
- alloc_render_data, /* check - initially set to alloc data */
+ "render", /* name */
+ NULL, /* private data */
+ NULL, /* creator */
+ NULL, /* destructor */
+ NULL, /* validate */
run_render /* run */
};
projects / mesa.git / blobdiff