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Remove dead code.

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Replace blocks of per-attribute code with for-loops.
New comments/docs.
This commit is contained in:
Brian Paul
2003-03-31 23:47:31 +00:00
parent d78c57e8b5
commit dc27b33fb4
2 changed files with 92 additions and 204 deletions
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288
src/mesa/tnl/t_imm_fixup.c
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@@ -1,5 +1,3 @@
/* $Id: t_imm_fixup.c,v 1.42 2003/03/31 18:19:57 brianp Exp $ */
/*
* Mesa 3-D graphics library
* Version: 5.1
@@ -53,9 +51,13 @@
#include "t_pipeline.h"
/*
* Indexed by primitive type (GL_POINTS=0, GL_LINES=1, GL_LINE_LOOP=2, etc)
*/
static const GLuint increment[GL_POLYGON+2] = { 1,2,1,1,3,1,1,4,2,1,1 };
static const GLuint intro[GL_POLYGON+2] = { 0,0,2,2,0,2,2,0,2,2,0 };
void
_tnl_fixup_4f( GLfloat data[][4], const GLuint flag[],
GLuint start, GLuint match )
@@ -70,25 +72,6 @@ _tnl_fixup_4f( GLfloat data[][4], const GLuint flag[],
}
}
void
_tnl_fixup_3f( GLfloat data[][3], const GLuint flag[],
GLuint start, GLuint match )
{
GLuint i = start;
for (;;) {
if ((flag[++i] & match) == 0) {
/* _mesa_debug(NULL, "_tnl_fixup_3f copy to %p values %f %f %f\n", */
/* data[i], */
/* data[i-1][0], */
/* data[i-1][1], */
/* data[i-1][2]); */
COPY_3V(data[i], data[i-1]);
if (flag[i] & VERT_BIT_END_VB) break;
}
}
}
void
_tnl_fixup_1ui( GLuint *data, GLuint flag[], GLuint start, GLuint match )
@@ -105,20 +88,6 @@ _tnl_fixup_1ui( GLuint *data, GLuint flag[], GLuint start, GLuint match )
}
void
_tnl_fixup_1f( GLfloat *data, GLuint flag[], GLuint start, GLuint match )
{
GLuint i = start;
for (;;) {
if ((flag[++i] & match) == 0) {
data[i] = data[i-1];
if (flag[i] & VERT_BIT_END_VB) break;
}
}
flag[i] |= match;
}
void
_tnl_fixup_1ub( GLubyte *data, GLuint flag[], GLuint start, GLuint match)
{
@@ -145,21 +114,6 @@ fixup_first_4f( GLfloat data[][4], const GLuint flag[], GLuint match,
COPY_4FV(data[i], dflt);
}
#if 0
static void
fixup_first_3f( GLfloat data[][3], const GLuint flag[], GLuint match,
GLuint start, const GLfloat *dflt )
{
GLuint i = start-1;
match |= VERT_BIT_END_VB;
/* _mesa_debug(NULL, "fixup_first_3f default: %f %f %f start: %d\n", */
/* dflt[0], dflt[1], dflt[2], start); */
while ((flag[++i]&match) == 0)
COPY_3FV(data[i], dflt);
}
#endif
static void
fixup_first_1ui( GLuint data[], const GLuint flag[], GLuint match,
@@ -172,18 +126,6 @@ fixup_first_1ui( GLuint data[], const GLuint flag[], GLuint match,
data[i] = dflt;
}
#if 00
static void
fixup_first_1f( GLfloat data[], const GLuint flag[], GLuint match,
GLuint start, GLfloat dflt )
{
GLuint i = start-1;
match |= VERT_BIT_END_VB;
while ((flag[++i]&match) == 0)
data[i] = dflt;
}
#endif
static void
fixup_first_1ub( GLubyte data[], const GLuint flag[], GLuint match,
@@ -196,12 +138,14 @@ fixup_first_1ub( GLubyte data[], const GLuint flag[], GLuint match,
data[i] = dflt;
}
/*
/**
* Copy vertex attributes from the ctx->Current group into the immediate
* struct at the given position according to copyMask.
*/
static void copy_from_current( GLcontext *ctx, struct immediate *IM,
GLuint pos, GLuint copyMask )
static void
copy_from_current( GLcontext *ctx, struct immediate *IM,
GLuint pos, GLuint copyMask )
{
GLuint attrib, attribBit;
@@ -229,7 +173,19 @@ static void copy_from_current( GLcontext *ctx, struct immediate *IM,
}
void _tnl_fixup_input( GLcontext *ctx, struct immediate *IM )
/**
* Fill in missing vertex attributes in the incoming immediate structure.
* For example, suppose the following calls are made:
* glBegin()
* glColor(c1)
* glVertex(v1)
* glVertex(v2)
* glEnd()
* The v2 vertex should get color c1 since glColor wasn't called for v2.
* This function will make c2 be c1. Same story for all vertex attribs.
*/
void
_tnl_fixup_input( GLcontext *ctx, struct immediate *IM )
{
TNLcontext *tnl = TNL_CONTEXT(ctx);
GLuint start = IM->CopyStart;
@@ -258,6 +214,7 @@ void _tnl_fixup_input( GLcontext *ctx, struct immediate *IM )
if (fixup) {
const GLuint copy = fixup & ~IM->Flag[start];
GLuint attr;
/* Equivalent to a lazy copy-from-current when setting up the
* immediate.
@@ -268,62 +225,36 @@ void _tnl_fixup_input( GLcontext *ctx, struct immediate *IM )
if (MESA_VERBOSE&VERBOSE_IMMEDIATE)
_tnl_print_vert_flags("fixup", fixup);
/* XXX replace these conditionals with a loop over the 16
* vertex attributes.
*/
for (attr = 1; attr < VERT_ATTRIB_MAX; attr++) { /* skip 0 (POS) */
const GLuint attrBit = 1 << attr;
if (fixup & attrBit) {
if (!IM->Attrib[attr]) {
IM->Attrib[attr] = _mesa_malloc(IMM_SIZE * 4 * sizeof(GLfloat));
if (!IM->Attrib[attr]) {
_mesa_error(ctx, GL_OUT_OF_MEMORY, "vertex processing");
return;
}
}
if (fixup & VERT_BITS_TEX_ANY) {
GLuint i;
for (i = 0 ; i < ctx->Const.MaxTextureUnits ; i++) {
if ((fixup & VERT_BIT_TEX(i))) {
if (orflag & VERT_BIT_TEX(i))
_tnl_fixup_4f( IM->Attrib[VERT_ATTRIB_TEX0 + i], IM->Flag,
start, VERT_BIT_TEX(i) );
else
fixup_first_4f( IM->Attrib[VERT_ATTRIB_TEX0 + i], IM->Flag,
VERT_BIT_END_VB, start,
IM->Attrib[VERT_ATTRIB_TEX0 + i][start]);
}
}
}
if (fixup & VERT_BIT_COLOR0) {
if (orflag & VERT_BIT_COLOR0)
_tnl_fixup_4f( IM->Attrib[VERT_ATTRIB_COLOR0], IM->Flag, start,
VERT_BIT_COLOR0 );
/* No need for else case as the drivers understand stride
* zero here. (TODO - propogate this)
*/
}
if (fixup & VERT_BIT_COLOR1) {
if (orflag & VERT_BIT_COLOR1)
_tnl_fixup_4f( IM->Attrib[VERT_ATTRIB_COLOR1], IM->Flag, start,
VERT_BIT_COLOR1 );
else
fixup_first_4f( IM->Attrib[VERT_ATTRIB_COLOR1], IM->Flag,
VERT_BIT_END_VB, start,
IM->Attrib[VERT_ATTRIB_COLOR1][start] );
}
if (fixup & VERT_BIT_FOG) {
if (orflag & VERT_BIT_FOG)
_tnl_fixup_4f( IM->Attrib[VERT_ATTRIB_FOG], IM->Flag,
start, VERT_BIT_FOG );
else
fixup_first_4f( IM->Attrib[VERT_ATTRIB_FOG], IM->Flag,
VERT_BIT_END_VB,
start, IM->Attrib[VERT_ATTRIB_FOG][start] );
}
if (fixup & VERT_BIT_NORMAL) {
if (orflag & VERT_BIT_NORMAL)
_tnl_fixup_4f( IM->Attrib[VERT_ATTRIB_NORMAL], IM->Flag, start,
VERT_BIT_NORMAL );
else
fixup_first_4f( IM->Attrib[VERT_ATTRIB_NORMAL], IM->Flag,
VERT_BIT_END_VB, start,
IM->Attrib[VERT_ATTRIB_NORMAL][start] );
if (attr == VERT_BIT_COLOR0) {
/* special case, darn - try to remove someday */
if (orflag & VERT_BIT_COLOR0) {
_tnl_fixup_4f( IM->Attrib[VERT_ATTRIB_COLOR0], IM->Flag,
start, VERT_BIT_COLOR0 );
}
/* No need for else case as the drivers understand stride
* zero here. (TODO - propogate this)
*/
}
else {
/* general case */
if (orflag & attrBit)
_tnl_fixup_4f( IM->Attrib[attr], IM->Flag, start, attrBit );
else
fixup_first_4f( IM->Attrib[attr], IM->Flag, VERT_BIT_END_VB,
start, IM->Attrib[attr][start] );
}
}
}
if (fixup & VERT_BIT_EDGEFLAG) {
@@ -406,7 +337,8 @@ static GLboolean is_fan_like[GL_POLYGON+1] = {
};
/* Copy the untransformed data from the shared vertices of a primitive
/**
* Copy the untransformed data from the shared vertices of a primitive
* that wraps over two immediate structs. This is done prior to
* set_immediate so that prev and next may point to the same
* structure. In general it's difficult to avoid this copy on long
@@ -415,7 +347,8 @@ static GLboolean is_fan_like[GL_POLYGON+1] = {
* Have to be careful with the transitions between display list
* replay, compile and normal execute modes.
*/
void _tnl_copy_immediate_vertices( GLcontext *ctx, struct immediate *next )
void
_tnl_copy_immediate_vertices( GLcontext *ctx, struct immediate *next )
{
TNLcontext *tnl = TNL_CONTEXT(ctx);
struct immediate *prev = tnl->ExecCopySource;
@@ -558,12 +491,14 @@ void _tnl_copy_immediate_vertices( GLcontext *ctx, struct immediate *next )
/* Revive a compiled immediate struct - propogate new 'Current'
/**
* Revive a compiled immediate struct - propogate new 'Current'
* values. Often this is redundant because the current values were
* known and fixed up at compile time (or in the first execution of
* the cassette).
*/
void _tnl_fixup_compiled_cassette( GLcontext *ctx, struct immediate *IM )
void
_tnl_fixup_compiled_cassette( GLcontext *ctx, struct immediate *IM )
{
TNLcontext *tnl = TNL_CONTEXT(ctx);
GLuint fixup;
@@ -604,15 +539,11 @@ void _tnl_fixup_compiled_cassette( GLcontext *ctx, struct immediate *IM )
/* _tnl_print_vert_flags("fixup compiled", fixup); */
if (fixup) {
/* XXX try to replace this code with a loop over the 16 vertex
* attributes.
*/
#if 0
GLuint attr;
for (attr = 1; attr < VERT_ATTRIB_MAX; attr++) {
if (fixup & (1 << attr)) {
for (attr = 1; attr < VERT_ATTRIB_MAX; attr++) { /* skip 0 (POS) */
const GLuint attrBit = 1 << attr;
if (fixup & attrBit) {
if (attr == VERT_ATTRIB_COLOR0) {
/* special case, darn */
if (IM->CopyOrFlag & VERT_BIT_COLOR0)
@@ -624,48 +555,11 @@ void _tnl_fixup_compiled_cassette( GLcontext *ctx, struct immediate *IM )
}
else {
fixup_first_4f(IM->Attrib[attr], IM->Flag,
1 << attr, start, ctx->Current.Attrib[attr] );
attrBit, start, ctx->Current.Attrib[attr] );
}
}
}
#else
if (fixup & VERT_BIT_NORMAL) {
fixup_first_4f(IM->Attrib[VERT_ATTRIB_NORMAL], IM->Flag,
VERT_BIT_NORMAL, start,
ctx->Current.Attrib[VERT_ATTRIB_NORMAL] );
}
if (fixup & VERT_BIT_COLOR0) {
if (IM->CopyOrFlag & VERT_BIT_COLOR0)
fixup_first_4f(IM->Attrib[VERT_ATTRIB_COLOR0], IM->Flag,
VERT_BIT_COLOR0, start,
ctx->Current.Attrib[VERT_ATTRIB_COLOR0] );
else
fixup &= ~VERT_BIT_COLOR0;
}
if (fixup & VERT_BIT_COLOR1)
fixup_first_4f(IM->Attrib[VERT_ATTRIB_COLOR1], IM->Flag,
VERT_BIT_COLOR1, start,
ctx->Current.Attrib[VERT_ATTRIB_COLOR1] );
if (fixup & VERT_BIT_FOG)
fixup_first_4f( IM->Attrib[VERT_ATTRIB_FOG], IM->Flag,
VERT_BIT_FOG, start,
ctx->Current.Attrib[VERT_ATTRIB_FOG] );
if (fixup & VERT_BITS_TEX_ANY) {
GLuint i;
for (i = 0 ; i < ctx->Const.MaxTextureUnits ; i++) {
if (fixup & VERT_BIT_TEX(i))
fixup_first_4f( IM->Attrib[VERT_ATTRIB_TEX0 + i], IM->Flag,
VERT_BIT_TEX(i), start,
ctx->Current.Attrib[VERT_ATTRIB_TEX0 + i] );
}
}
#endif
if (fixup & VERT_BIT_EDGEFLAG)
fixup_first_1ub(IM->EdgeFlag, IM->Flag, VERT_BIT_EDGEFLAG, start,
ctx->Current.EdgeFlag );
@@ -701,20 +595,22 @@ void _tnl_fixup_compiled_cassette( GLcontext *ctx, struct immediate *IM )
static void copy_none( TNLcontext *tnl, GLuint start, GLuint count, GLuint ovf)
static void
copy_none( TNLcontext *tnl, GLuint start, GLuint count, GLuint ovf)
{
(void) (start && ovf && tnl && count);
}
static void copy_last( TNLcontext *tnl, GLuint start, GLuint count, GLuint ovf)
static void
copy_last( TNLcontext *tnl, GLuint start, GLuint count, GLuint ovf)
{
(void) start; (void) ovf;
tnl->ExecCopyCount = 1;
tnl->ExecCopyElts[2] = count-1;
}
static void copy_first_and_last( TNLcontext *tnl, GLuint start, GLuint count,
GLuint ovf)
static void
copy_first_and_last( TNLcontext *tnl, GLuint start, GLuint count, GLuint ovf)
{
(void) ovf;
tnl->ExecCopyCount = 2;
@@ -722,8 +618,8 @@ static void copy_first_and_last( TNLcontext *tnl, GLuint start, GLuint count,
tnl->ExecCopyElts[2] = count-1;
}
static void copy_last_two( TNLcontext *tnl, GLuint start, GLuint count,
GLuint ovf )
static void
copy_last_three( TNLcontext *tnl, GLuint start, GLuint count, GLuint ovf )
{
(void) start;
tnl->ExecCopyCount = 2+ovf;
@@ -732,8 +628,8 @@ static void copy_last_two( TNLcontext *tnl, GLuint start, GLuint count,
tnl->ExecCopyElts[2] = count-1;
}
static void copy_overflow( TNLcontext *tnl, GLuint start, GLuint count,
GLuint ovf )
static void
copy_overflow( TNLcontext *tnl, GLuint start, GLuint count, GLuint ovf )
{
(void) start;
tnl->ExecCopyCount = ovf;
@@ -748,24 +644,23 @@ typedef void (*copy_func)( TNLcontext *tnl, GLuint start, GLuint count,
static copy_func copy_tab[GL_POLYGON+2] =
{
copy_none,
copy_overflow,
copy_first_and_last,
copy_last,
copy_overflow,
copy_last_two,
copy_first_and_last,
copy_overflow,
copy_last_two,
copy_first_and_last,
copy_none, /* GL_POINTS */
copy_overflow, /* GL_LINES */
copy_first_and_last, /* GL_LINE_LOOP */
copy_last, /* GL_LINE_STRIP */
copy_overflow, /* GL_TRIANGLES */
copy_last_three, /* GL_TRIANGLE_STRIP */
copy_first_and_last, /* GL_TRIANGLE_FAN */
copy_overflow, /* GL_QUADS */
copy_last_three, /* GL_QUAD_STRIP */
copy_first_and_last, /* GL_POLYGON */
copy_none
};
/* Figure out what vertices need to be copied next time.
/**
* Figure out what vertices need to be copied next time.
*/
void
_tnl_get_exec_copy_verts( GLcontext *ctx, struct immediate *IM )
@@ -790,7 +685,8 @@ _tnl_get_exec_copy_verts( GLcontext *ctx, struct immediate *IM )
tnl->ExecCopyCount = 0;
tnl->ExecCopyTexSize = 0;
tnl->ExecParity = 0;
} else {
}
else {
/* Remember this immediate as the one to copy from.
*/
tnl->ExecCopySource = IM; IM->ref_count++;
@@ -812,7 +708,8 @@ _tnl_get_exec_copy_verts( GLcontext *ctx, struct immediate *IM )
}
/* Recalculate ExecCopyElts, ExecParity, etc.
/**
* Recalculate ExecCopyElts, ExecParity, etc.
*/
void
_tnl_get_purged_copy_verts( GLcontext *ctx, struct immediate *IM )
@@ -844,7 +741,7 @@ _tnl_get_purged_copy_verts( GLcontext *ctx, struct immediate *IM )
}
/*
/**
* Called via the VB->import_data function pointer.
*/
void
@@ -880,4 +777,3 @@ _tnl_upgrade_current_data( GLcontext *ctx, GLuint required, GLuint flags )
VB->importable_data &= ~VERT_BIT_COLOR0;
}
}

8
src/mesa/tnl/t_imm_fixup.h
View File

@@ -1,5 +1,3 @@
/* $Id: t_imm_fixup.h,v 1.7 2003/03/31 18:19:57 brianp Exp $ */
/*
* Mesa 3-D graphics library
* Version: 5.1
@@ -34,15 +32,9 @@
extern void _tnl_fixup_1ub( GLubyte *data, GLuint flag[],
GLuint start, GLuint match );
extern void _tnl_fixup_1f( GLfloat *data, GLuint flag[],
GLuint start, GLuint match );
extern void _tnl_fixup_1ui( GLuint *data, GLuint flag[],
GLuint start, GLuint match );
extern void _tnl_fixup_3f( GLfloat data[][3], const GLuint flag[],
GLuint start, GLuint match );
extern void _tnl_fixup_4f( GLfloat data[][4], const GLuint flag[],
GLuint start, GLuint match );