aboutsummaryrefslogtreecommitdiffstats
path: root/src/mesa/drivers/common/t_dd_dmatmp.h
diff options
context:
space:
mode:
Diffstat (limited to 'src/mesa/drivers/common/t_dd_dmatmp.h')
-rw-r--r--src/mesa/drivers/common/t_dd_dmatmp.h147
1 files changed, 74 insertions, 73 deletions
diff --git a/src/mesa/drivers/common/t_dd_dmatmp.h b/src/mesa/drivers/common/t_dd_dmatmp.h
index f2a08c02842..db06f0f92c2 100644
--- a/src/mesa/drivers/common/t_dd_dmatmp.h
+++ b/src/mesa/drivers/common/t_dd_dmatmp.h
@@ -1,19 +1,21 @@
+/* $Id: t_dd_dmatmp.h,v 1.6 2001/03/12 00:48:44 gareth Exp $ */
+
/*
* Mesa 3-D graphics library
* Version: 3.5
- *
- * Copyright (C) 1999 Brian Paul All Rights Reserved.
- *
+ *
+ * Copyright (C) 1999-2001 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"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* 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 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 NONINFRINGEMENT. IN NO EVENT SHALL
@@ -21,39 +23,39 @@
* 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.
*
- * Author:
- * Keith Whitwell <[email protected]>
+ * Authors:
+ * Keith Whitwell <[email protected]>
*/
/* Template for render stages which build and emit vertices directly
* to fixed-size dma buffers. Useful for rendering strips and other
* native primitives where clipping and per-vertex tweaks such as
- * those in t_dd_tritmp.h are not required.
+ * those in t_dd_tritmp.h are not required.
*
* Produces code for both inline triangles and indexed triangles.
* Where various primitive types are unaccelerated by hardware, the
* code attempts to fallback to other primitive types (quadstrips to
* tristrips, lineloops to linestrips), or to indexed vertices.
* Ultimately, a FALLBACK() macro is invoked if there is no way to
- * render the primitive natively.
+ * render the primitive natively.
*/
#if !defined(HAVE_TRIANGLES)
#error "must have at least triangles to use render template"
#endif
-#if !HAVE_ELTS
+#if !HAVE_ELTS
#define ELTS_VARS
#define ALLOC_ELTS( nr )
#define EMIT_ELT( offset, elt )
#define INCR_ELTS( nr )
-#define ELT_INIT(prim)
+#define ELT_INIT(prim)
#define GET_CURRENT_VB_MAX_ELTS() 0
#define GET_SUBSEQUENT_VB_MAX_ELTS() 0
#define ALLOC_ELTS_NEW_PRIMITIVE(nr)
-#define RELEASE_ELT_VERTS()
-#define EMIT_INDEXED_VERTS( ctx, start, count )
+#define RELEASE_ELT_VERTS()
+#define EMIT_INDEXED_VERTS( ctx, start, count )
#endif
#ifndef EMIT_TWO_ELTS
@@ -63,21 +65,21 @@ do { \
EMIT_ELT( offset+1, elt1 ); \
} while (0)
#endif
-
+
/**********************************************************************/
/* Render whole begin/end objects */
/**********************************************************************/
-static GLboolean TAG(emit_elt_verts)( GLcontext *ctx,
+static GLboolean TAG(emit_elt_verts)( GLcontext *ctx,
GLuint start, GLuint count )
{
if (HAVE_ELTS) {
LOCAL_VARS;
GLuint nr = count - start;
- if ( nr >= GET_SUBSEQUENT_VB_MAX_VERTS() ) /* assumes same packing for
+ if ( nr >= GET_SUBSEQUENT_VB_MAX_VERTS() ) /* assumes same packing for
* indexed and regualar verts
*/
return GL_FALSE;
@@ -99,8 +101,8 @@ static void TAG(emit_elts)( GLcontext *ctx, GLuint *elts, GLuint nr )
ALLOC_ELTS( nr );
- for ( i = 0 ; i < nr ; i+=2, elts += 2 ) {
- EMIT_TWO_ELTS( 0, elts[0], elts[1] );
+ for ( i = 0 ; i < nr ; i+=2, elts += 2 ) {
+ EMIT_TWO_ELTS( 0, elts[0], elts[1] );
INCR_ELTS( 2 );
}
}
@@ -123,12 +125,12 @@ static void TAG(render_points_verts)( GLcontext *ctx,
int dmasz = GET_SUBSEQUENT_VB_MAX_VERTS();
int currentsz = GET_CURRENT_VB_MAX_VERTS();
GLuint j, nr;
-
+
INIT( GL_POINTS );
-
+
if (currentsz < 8)
currentsz = dmasz;
-
+
for (j = start; j < count; j += nr ) {
nr = MIN2( currentsz, count - j );
EMIT_VERTS( ctx, j, nr );
@@ -151,7 +153,7 @@ static void TAG(render_lines_verts)( GLcontext *ctx,
GLuint j, nr;
INIT( GL_LINES );
-
+
/* Emit whole number of lines in total and in each buffer:
*/
count -= (count-start) & 1;
@@ -214,7 +216,7 @@ static void TAG(render_line_loop_verts)( GLcontext *ctx,
NEW_PRIMITIVE();
INIT( GL_LINE_STRIP );
- if (flags & PRIM_BEGIN)
+ if (flags & PRIM_BEGIN)
j = start;
else
j = start + 1;
@@ -224,7 +226,7 @@ static void TAG(render_line_loop_verts)( GLcontext *ctx,
currentsz--;
dmasz--;
- if (currentsz < 8)
+ if (currentsz < 8)
currentsz = dmasz;
for ( ; j < count - 1; j += nr - 1 ) {
@@ -232,8 +234,8 @@ static void TAG(render_line_loop_verts)( GLcontext *ctx,
EMIT_VERTS( ctx, j, nr );
currentsz = dmasz;
}
-
- if (flags & PRIM_END)
+
+ if (flags & PRIM_END)
EMIT_VERTS( ctx, start, 1 );
} else {
@@ -253,7 +255,7 @@ static void TAG(render_triangles_verts)( GLcontext *ctx,
GLuint j, nr;
INIT(GL_TRIANGLES);
-
+
/* Emit whole number of tris in total. dmasz is already a multiple
* of 3.
*/
@@ -281,12 +283,12 @@ static void TAG(render_tri_strip_verts)( GLcontext *ctx,
GLuint j, nr;
int dmasz = GET_SUBSEQUENT_VB_MAX_VERTS();
int currentsz;
-
+
INIT(GL_TRIANGLE_STRIP);
NEW_PRIMITIVE();
-
+
currentsz = GET_CURRENT_VB_MAX_VERTS();
-
+
if (currentsz < 8) {
FIRE_VERTICES();
currentsz = dmasz;
@@ -304,7 +306,7 @@ static void TAG(render_tri_strip_verts)( GLcontext *ctx,
*/
dmasz -= (dmasz & 1);
currentsz -= (currentsz & 1);
-
+
for (j = start ; j < count - 2; j += nr - 2 ) {
nr = MIN2( currentsz, count - j );
EMIT_VERTS( ctx, j, nr );
@@ -325,7 +327,7 @@ static void TAG(render_tri_fan_verts)( GLcontext *ctx,
GLuint j, nr;
int dmasz = GET_SUBSEQUENT_VB_MAX_VERTS();
int currentsz = GET_CURRENT_VB_MAX_VERTS();
-
+
NEW_PRIMITIVE();
INIT(GL_TRIANGLE_FAN);
@@ -340,7 +342,7 @@ static void TAG(render_tri_fan_verts)( GLcontext *ctx,
EMIT_VERTS( ctx, j, nr - 1 );
currentsz = dmasz;
}
- }
+ }
else {
/* Could write code to emit these as indexed vertices (for the
* g400, for instance).
@@ -368,14 +370,14 @@ static void TAG(render_poly_verts)( GLcontext *ctx,
FIRE_VERTICES();
currentsz = dmasz;
}
-
+
for (j = start + 1 ; j < count - 1 ; j += nr - 1 ) {
nr = MIN2( currentsz, count - j + 1 );
EMIT_VERTS( ctx, start, 1 );
EMIT_VERTS( ctx, j, nr - 1 );
currentsz = dmasz;
}
- }
+ }
else if (HAVE_TRI_FANS && !(ctx->_TriangleCaps & DD_FLATSHADE)) {
TAG(render_tri_fan_verts)( ctx, start, count, flags );
} else {
@@ -394,7 +396,7 @@ static void TAG(render_quad_strip_verts)( GLcontext *ctx,
/* TODO.
*/
} else if (HAVE_TRI_STRIPS && ctx->_TriangleCaps & DD_FLATSHADE) {
- if (TAG(emit_elt_verts)( ctx, start, count )) {
+ if (TAG(emit_elt_verts)( ctx, start, count )) {
LOCAL_VARS;
int dmasz = GET_SUBSEQUENT_VB_MAX_ELTS();
int currentsz;
@@ -412,7 +414,7 @@ static void TAG(render_quad_strip_verts)( GLcontext *ctx,
dmasz -= dmasz & 1;
count -= (count-start) & 1;
currentsz -= currentsz & 1;
-
+
if (currentsz < 12)
currentsz = dmasz;
@@ -428,28 +430,28 @@ static void TAG(render_quad_strip_verts)( GLcontext *ctx,
NEW_PRIMITIVE();
ALLOC_ELTS_NEW_PRIMITIVE( quads*6 );
-
+
for ( i = 0 ; i < quads*2 ; i+=2 ) {
EMIT_TWO_ELTS( 0, (i+0), (i+1) );
EMIT_TWO_ELTS( 2, (i+2), (i+1) );
EMIT_TWO_ELTS( 4, (i+3), (i+2) );
INCR_ELTS( 6 );
}
-
+
NEW_PRIMITIVE();
}
currentsz = dmasz;
}
RELEASE_ELT_VERTS();
- }
+ }
else {
/* Vertices won't fit in a single buffer or elts not available,
* VERT_FALLBACK.
*/
VERT_FALLBACK( ctx, start, count, flags );
}
- }
+ }
else if (HAVE_TRI_STRIPS) {
LOCAL_VARS;
int dmasz = GET_SUBSEQUENT_VB_MAX_VERTS();
@@ -465,7 +467,7 @@ static void TAG(render_quad_strip_verts)( GLcontext *ctx,
dmasz -= dmasz & 1;
currentsz -= currentsz & 1;
count -= (count-start) & 1;
-
+
if (currentsz < 8) {
FIRE_VERTICES();
currentsz = dmasz;
@@ -488,10 +490,10 @@ static void TAG(render_quads_verts)( GLcontext *ctx,
GLuint flags )
{
if (HAVE_QUADS && 0) {
- } else if (TAG(emit_elt_verts)( ctx, start, count )) {
+ } else if (TAG(emit_elt_verts)( ctx, start, count )) {
/* Hardware doesn't have a quad primitive type -- try to
* simulate it using indexed vertices and the triangle
- * primitive:
+ * primitive:
*/
LOCAL_VARS;
int dmasz = GET_SUBSEQUENT_VB_MAX_ELTS();
@@ -532,14 +534,14 @@ static void TAG(render_quads_verts)( GLcontext *ctx,
EMIT_TWO_ELTS( 4, (i+2), (i+3) );
INCR_ELTS( 6 );
}
-
+
NEW_PRIMITIVE();
}
currentsz = dmasz;
}
-
+
RELEASE_ELT_VERTS();
- }
+ }
else {
/* Vertices won't fit in a single buffer, fallback.
*/
@@ -557,7 +559,7 @@ static void TAG(render_noop)( GLcontext *ctx,
-static render_func TAG(render_tab_verts)[GL_POLYGON+2] =
+static render_func TAG(render_tab_verts)[GL_POLYGON+2] =
{
TAG(render_points_verts),
TAG(render_lines_verts),
@@ -577,7 +579,7 @@ static render_func TAG(render_tab_verts)[GL_POLYGON+2] =
* Render elts using hardware indexed verts *
****************************************************************************/
-#if (HAVE_ELTS)
+#if (HAVE_ELTS)
static void TAG(render_points_elts)( GLcontext *ctx,
GLuint start,
GLuint count,
@@ -589,9 +591,9 @@ static void TAG(render_points_elts)( GLcontext *ctx,
int currentsz;
GLuint *elts = TNL_CONTEXT(ctx)->vb.Elts;
GLuint j, nr;
-
+
ELT_INIT( GL_POINTS );
-
+
currentsz = GET_CURRENT_VB_MAX_ELTS();
if (currentsz < 8)
currentsz = dmasz;
@@ -689,34 +691,34 @@ static void TAG(render_line_loop_elts)( GLcontext *ctx,
int currentsz;
GLuint *elts = TNL_CONTEXT(ctx)->vb.Elts;
GLuint j, nr;
-
+
NEW_PRIMITIVE();
ELT_INIT( GL_LINE_STRIP );
-
- if (flags & PRIM_BEGIN)
+
+ if (flags & PRIM_BEGIN)
j = start;
else
j = start + 1;
-
+
currentsz = GET_CURRENT_VB_MAX_ELTS();
if (currentsz < 8) {
FIRE_VERTICES();
currentsz = dmasz;
}
-
+
/* Ensure last vertex doesn't wrap:
*/
currentsz--;
dmasz--;
-
+
for ( ; j < count - 1; j += nr - 1 ) {
nr = MIN2( currentsz, count - j );
/* NEW_PRIMITIVE(); */
TAG(emit_elts)( ctx, elts+j, nr );
currentsz = dmasz;
}
-
- if (flags & PRIM_END)
+
+ if (flags & PRIM_END)
TAG(emit_elts)( ctx, elts+start, 1 );
NEW_PRIMITIVE();
@@ -744,7 +746,7 @@ static void TAG(render_triangles_elts)( GLcontext *ctx,
NEW_PRIMITIVE();
ELT_INIT( GL_TRIANGLES );
-
+
currentsz = GET_CURRENT_VB_MAX_ELTS();
/* Emit whole number of tris in total. dmasz is already a multiple
@@ -779,17 +781,17 @@ static void TAG(render_tri_strip_elts)( GLcontext *ctx,
NEW_PRIMITIVE();
ELT_INIT( GL_TRIANGLE_STRIP );
-
+
currentsz = GET_CURRENT_VB_MAX_ELTS();
if (currentsz < 8) {
FIRE_VERTICES();
currentsz = dmasz;
}
-
+
if (flags & PRIM_PARITY) {
TAG(emit_elts)( ctx, elts+start, 1 );
}
-
+
/* Keep the same winding over multiple buffers:
*/
dmasz -= (dmasz & 1);
@@ -882,7 +884,7 @@ static void TAG(render_quad_strip_elts)( GLcontext *ctx,
GLuint flags )
{
if (HAVE_QUAD_STRIPS && 0) {
- }
+ }
else if (HAVE_TRI_STRIPS) {
LOCAL_VARS;
GLuint *elts = TNL_CONTEXT(ctx)->vb.Elts;
@@ -898,11 +900,11 @@ static void TAG(render_quad_strip_elts)( GLcontext *ctx,
dmasz -= dmasz & 1;
count -= (count-start) & 1;
currentsz -= currentsz & 1;
-
+
if (currentsz < 12)
currentsz = dmasz;
- if (ctx->_TriangleCaps & DD_FLATSHADE) {
+ if (ctx->_TriangleCaps & DD_FLATSHADE) {
ELT_INIT( GL_TRIANGLES );
currentsz = currentsz/6*2;
@@ -911,7 +913,7 @@ static void TAG(render_quad_strip_elts)( GLcontext *ctx,
for (j = start; j < count - 3; j += nr - 2 ) {
nr = MIN2( currentsz, count - j );
- if (nr >= 4)
+ if (nr >= 4)
{
GLint i;
GLint quads = (nr/2)-1;
@@ -920,20 +922,20 @@ static void TAG(render_quad_strip_elts)( GLcontext *ctx,
NEW_PRIMITIVE();
ALLOC_ELTS_NEW_PRIMITIVE( quads*6 );
-
+
for ( i = 0 ; i < quads ; i++, elts += 2 ) {
EMIT_TWO_ELTS( 0, elts[0], elts[1] );
EMIT_TWO_ELTS( 2, elts[2], elts[1] );
EMIT_TWO_ELTS( 4, elts[3], elts[2] );
INCR_ELTS( 6 );
}
-
+
NEW_PRIMITIVE();
}
currentsz = dmasz;
}
- }
+ }
else {
ELT_INIT( GL_TRIANGLE_STRIP );
@@ -981,7 +983,7 @@ static void TAG(render_quads_elts)( GLcontext *ctx,
for (j = start; j < count - 3; j += nr - 2 ) {
nr = MIN2( currentsz, count - j );
- if (nr >= 4)
+ if (nr >= 4)
{
GLint quads = nr/4;
GLint i;
@@ -1005,7 +1007,7 @@ static void TAG(render_quads_elts)( GLcontext *ctx,
-static render_func TAG(render_tab_elts)[GL_POLYGON+2] =
+static render_func TAG(render_tab_elts)[GL_POLYGON+2] =
{
TAG(render_points_elts),
TAG(render_lines_elts),
@@ -1020,4 +1022,3 @@ static render_func TAG(render_tab_elts)[GL_POLYGON+2] =
TAG(render_noop),
};
#endif
-
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-29 10:44:13 +0000