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pixelmap code simplification

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Brian
2007-03-14 14:56:39 -06:00
parent b6adf336f4
commit 32d196820f
1 changed files with 124 additions and 253 deletions
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317
src/mesa/main/pixel.c
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@@ -1,8 +1,8 @@
/*
* Mesa 3-D graphics library
* Version: 6.5.2
* Version: 6.5.3
*
* Copyright (C) 1999-2006 Brian Paul All Rights Reserved.
* Copyright (C) 1999-2007 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"),
@@ -252,85 +252,76 @@ _mesa_PixelStoref( GLenum pname, GLfloat param )
/***** glPixelMap *****/
/**********************************************************************/
/**
* Return pointer to a pixelmap by name.
*/
static struct gl_pixelmap *
get_pixelmap(GLcontext *ctx, GLenum map)
{
switch (map) {
case GL_PIXEL_MAP_I_TO_I:
return &ctx->PixelMaps.ItoI;
case GL_PIXEL_MAP_S_TO_S:
return &ctx->PixelMaps.StoS;
case GL_PIXEL_MAP_I_TO_R:
return &ctx->PixelMaps.ItoR;
case GL_PIXEL_MAP_I_TO_G:
return &ctx->PixelMaps.ItoG;
case GL_PIXEL_MAP_I_TO_B:
return &ctx->PixelMaps.ItoB;
case GL_PIXEL_MAP_I_TO_A:
return &ctx->PixelMaps.ItoA;
case GL_PIXEL_MAP_R_TO_R:
return &ctx->PixelMaps.RtoR;
case GL_PIXEL_MAP_G_TO_G:
return &ctx->PixelMaps.GtoG;
case GL_PIXEL_MAP_B_TO_B:
return &ctx->PixelMaps.BtoB;
case GL_PIXEL_MAP_A_TO_A:
return &ctx->PixelMaps.AtoA;
default:
return NULL;
}
}
/**
* Helper routine used by the other _mesa_PixelMap() functions.
*/
static void
pixelmap(GLcontext *ctx, GLenum map, GLsizei mapsize, const GLfloat *values)
store_pixelmap(GLcontext *ctx, GLenum map, GLsizei mapsize,
const GLfloat *values)
{
GLint i;
struct gl_pixelmap *pm = get_pixelmap(ctx, map);
if (!pm) {
_mesa_error(ctx, GL_INVALID_ENUM, "glPixelMap(map)");
return;
}
switch (map) {
case GL_PIXEL_MAP_S_TO_S:
/* special case */
ctx->PixelMaps.StoS.Size = mapsize;
for (i = 0; i < mapsize; i++) {
ctx->PixelMaps.StoS.Map[i] = IROUND(values[i]);
}
break;
case GL_PIXEL_MAP_I_TO_I:
/* special case */
ctx->PixelMaps.ItoI.Size = mapsize;
for (i = 0; i < mapsize; i++) {
ctx->PixelMaps.ItoI.Map[i] = values[i];
}
break;
case GL_PIXEL_MAP_I_TO_R:
ctx->PixelMaps.ItoR.Size = mapsize;
for (i = 0; i < mapsize; i++) {
GLfloat val = CLAMP( values[i], 0.0F, 1.0F );
ctx->PixelMaps.ItoR.Map[i] = val;
ctx->PixelMaps.ItoR.Map8[i] = (GLint) (val * 255.0F);
}
break;
case GL_PIXEL_MAP_I_TO_G:
ctx->PixelMaps.ItoG.Size = mapsize;
for (i = 0; i < mapsize; i++) {
GLfloat val = CLAMP( values[i], 0.0F, 1.0F );
ctx->PixelMaps.ItoG.Map[i] = val;
ctx->PixelMaps.ItoG.Map8[i] = (GLint) (val * 255.0F);
}
break;
case GL_PIXEL_MAP_I_TO_B:
ctx->PixelMaps.ItoB.Size = mapsize;
for (i = 0; i < mapsize; i++) {
GLfloat val = CLAMP( values[i], 0.0F, 1.0F );
ctx->PixelMaps.ItoB.Map[i] = val;
ctx->PixelMaps.ItoB.Map8[i] = (GLint) (val * 255.0F);
}
break;
case GL_PIXEL_MAP_I_TO_A:
ctx->PixelMaps.ItoA.Size = mapsize;
for (i = 0; i < mapsize; i++) {
GLfloat val = CLAMP( values[i], 0.0F, 1.0F );
ctx->PixelMaps.ItoA.Map[i] = val;
ctx->PixelMaps.ItoA.Map8[i] = (GLint) (val * 255.0F);
}
break;
case GL_PIXEL_MAP_R_TO_R:
ctx->PixelMaps.RtoR.Size = mapsize;
for (i = 0; i < mapsize; i++) {
ctx->PixelMaps.RtoR.Map[i] = CLAMP( values[i], 0.0F, 1.0F );
}
break;
case GL_PIXEL_MAP_G_TO_G:
ctx->PixelMaps.GtoG.Size = mapsize;
for (i = 0; i < mapsize; i++) {
ctx->PixelMaps.GtoG.Map[i] = CLAMP( values[i], 0.0F, 1.0F );
}
break;
case GL_PIXEL_MAP_B_TO_B:
ctx->PixelMaps.BtoB.Size = mapsize;
for (i = 0; i < mapsize; i++) {
ctx->PixelMaps.BtoB.Map[i] = CLAMP( values[i], 0.0F, 1.0F );
}
break;
case GL_PIXEL_MAP_A_TO_A:
ctx->PixelMaps.AtoA.Size = mapsize;
for (i = 0; i < mapsize; i++) {
ctx->PixelMaps.AtoA.Map[i] = CLAMP( values[i], 0.0F, 1.0F );
}
break;
default:
_mesa_error( ctx, GL_INVALID_ENUM, "glPixelMap(map)" );
/* general case */
pm->Size = mapsize;
for (i = 0; i < mapsize; i++) {
GLfloat val = CLAMP(values[i], 0.0F, 1.0F);
pm->Map[i] = val;
pm->Map8[i] = (GLint) (val * 255.0F);
}
}
}
@@ -385,7 +376,7 @@ _mesa_PixelMapfv( GLenum map, GLsizei mapsize, const GLfloat *values )
return;
}
pixelmap(ctx, map, mapsize, values);
store_pixelmap(ctx, map, mapsize, values);
if (ctx->Unpack.BufferObj->Name) {
ctx->Driver.UnmapBuffer(ctx, GL_PIXEL_UNPACK_BUFFER_EXT,
@@ -394,7 +385,6 @@ _mesa_PixelMapfv( GLenum map, GLsizei mapsize, const GLfloat *values )
}
void GLAPIENTRY
_mesa_PixelMapuiv(GLenum map, GLsizei mapsize, const GLuint *values )
{
@@ -464,11 +454,10 @@ _mesa_PixelMapuiv(GLenum map, GLsizei mapsize, const GLuint *values )
ctx->Unpack.BufferObj);
}
pixelmap(ctx, map, mapsize, fvalues);
store_pixelmap(ctx, map, mapsize, fvalues);
}
void GLAPIENTRY
_mesa_PixelMapusv(GLenum map, GLsizei mapsize, const GLushort *values )
{
@@ -539,40 +528,7 @@ _mesa_PixelMapusv(GLenum map, GLsizei mapsize, const GLushort *values )
ctx->Unpack.BufferObj);
}
pixelmap(ctx, map, mapsize, fvalues);
}
/**
* Return size of the named map.
*/
static GLuint
get_map_size(GLcontext *ctx, GLenum map)
{
switch (map) {
case GL_PIXEL_MAP_I_TO_I:
return ctx->PixelMaps.ItoI.Size;
case GL_PIXEL_MAP_S_TO_S:
return ctx->PixelMaps.StoS.Size;
case GL_PIXEL_MAP_I_TO_R:
return ctx->PixelMaps.ItoR.Size;
case GL_PIXEL_MAP_I_TO_G:
return ctx->PixelMaps.ItoG.Size;
case GL_PIXEL_MAP_I_TO_B:
return ctx->PixelMaps.ItoB.Size;
case GL_PIXEL_MAP_I_TO_A:
return ctx->PixelMaps.ItoA.Size;
case GL_PIXEL_MAP_R_TO_R:
return ctx->PixelMaps.RtoR.Size;
case GL_PIXEL_MAP_G_TO_G:
return ctx->PixelMaps.GtoG.Size;
case GL_PIXEL_MAP_B_TO_B:
return ctx->PixelMaps.BtoB.Size;
case GL_PIXEL_MAP_A_TO_A:
return ctx->PixelMaps.AtoA.Size;
default:
return 0;
}
store_pixelmap(ctx, map, mapsize, fvalues);
}
@@ -581,9 +537,17 @@ _mesa_GetPixelMapfv( GLenum map, GLfloat *values )
{
GET_CURRENT_CONTEXT(ctx);
GLuint mapsize, i;
const struct gl_pixelmap *pm;
ASSERT_OUTSIDE_BEGIN_END(ctx);
mapsize = get_map_size(ctx, map);
pm = get_pixelmap(ctx, map);
if (!pm) {
_mesa_error(ctx, GL_INVALID_ENUM, "glGetPixelMapfv(map)");
return;
}
mapsize = pm->Size;
if (ctx->Pack.BufferObj->Name) {
/* pack pixelmap into PBO */
@@ -613,41 +577,14 @@ _mesa_GetPixelMapfv( GLenum map, GLfloat *values )
return;
}
switch (map) {
case GL_PIXEL_MAP_I_TO_I:
MEMCPY(values, ctx->PixelMaps.ItoI.Map, mapsize * sizeof(GLfloat));
break;
case GL_PIXEL_MAP_S_TO_S:
if (map == GL_PIXEL_MAP_S_TO_S) {
/* special case */
for (i = 0; i < mapsize; i++) {
values[i] = (GLfloat) ctx->PixelMaps.StoS.Map[i];
}
break;
case GL_PIXEL_MAP_I_TO_R:
MEMCPY(values, ctx->PixelMaps.ItoR.Map, mapsize * sizeof(GLfloat));
break;
case GL_PIXEL_MAP_I_TO_G:
MEMCPY(values, ctx->PixelMaps.ItoG.Map, mapsize * sizeof(GLfloat));
break;
case GL_PIXEL_MAP_I_TO_B:
MEMCPY(values, ctx->PixelMaps.ItoB.Map, mapsize * sizeof(GLfloat));
break;
case GL_PIXEL_MAP_I_TO_A:
MEMCPY(values, ctx->PixelMaps.ItoA.Map, mapsize * sizeof(GLfloat));
break;
case GL_PIXEL_MAP_R_TO_R:
MEMCPY(values, ctx->PixelMaps.RtoR.Map, mapsize * sizeof(GLfloat));
break;
case GL_PIXEL_MAP_G_TO_G:
MEMCPY(values, ctx->PixelMaps.GtoG.Map, mapsize * sizeof(GLfloat));
break;
case GL_PIXEL_MAP_B_TO_B:
MEMCPY(values, ctx->PixelMaps.BtoB.Map, mapsize * sizeof(GLfloat));
break;
case GL_PIXEL_MAP_A_TO_A:
MEMCPY(values, ctx->PixelMaps.AtoA.Map, mapsize * sizeof(GLfloat));
break;
default:
_mesa_error( ctx, GL_INVALID_ENUM, "glGetPixelMapfv" );
}
else {
MEMCPY(values, pm->Map, mapsize * sizeof(GLfloat));
}
if (ctx->Pack.BufferObj->Name) {
@@ -662,9 +599,16 @@ _mesa_GetPixelMapuiv( GLenum map, GLuint *values )
{
GET_CURRENT_CONTEXT(ctx);
GLint mapsize, i;
const struct gl_pixelmap *pm;
ASSERT_OUTSIDE_BEGIN_END(ctx);
mapsize = get_map_size(ctx, map);
pm = get_pixelmap(ctx, map);
if (!pm) {
_mesa_error(ctx, GL_INVALID_ENUM, "glGetPixelMapuiv(map)");
return;
}
mapsize = pm->Size;
if (ctx->Pack.BufferObj->Name) {
/* pack pixelmap into PBO */
@@ -694,57 +638,14 @@ _mesa_GetPixelMapuiv( GLenum map, GLuint *values )
return;
}
switch (map) {
case GL_PIXEL_MAP_I_TO_I:
for (i = 0; i < mapsize; i++) {
values[i] = FLOAT_TO_UINT( ctx->PixelMaps.ItoI.Map[i] );
}
break;
case GL_PIXEL_MAP_S_TO_S:
if (map == GL_PIXEL_MAP_S_TO_S) {
/* special case */
MEMCPY(values, ctx->PixelMaps.StoS.Map, mapsize * sizeof(GLint));
break;
case GL_PIXEL_MAP_I_TO_R:
for (i = 0; i < mapsize; i++) {
values[i] = FLOAT_TO_UINT( ctx->PixelMaps.ItoR.Map[i] );
}
break;
case GL_PIXEL_MAP_I_TO_G:
else {
for (i = 0; i < mapsize; i++) {
values[i] = FLOAT_TO_UINT( ctx->PixelMaps.ItoG.Map[i] );
values[i] = FLOAT_TO_UINT( pm->Map[i] );
}
break;
case GL_PIXEL_MAP_I_TO_B:
for (i = 0; i < mapsize; i++) {
values[i] = FLOAT_TO_UINT( ctx->PixelMaps.ItoB.Map[i] );
}
break;
case GL_PIXEL_MAP_I_TO_A:
for (i = 0; i < mapsize; i++) {
values[i] = FLOAT_TO_UINT( ctx->PixelMaps.ItoA.Map[i] );
}
break;
case GL_PIXEL_MAP_R_TO_R:
for (i = 0; i < mapsize; i++) {
values[i] = FLOAT_TO_UINT( ctx->PixelMaps.RtoR.Map[i] );
}
break;
case GL_PIXEL_MAP_G_TO_G:
for (i = 0; i < mapsize; i++) {
values[i] = FLOAT_TO_UINT( ctx->PixelMaps.GtoG.Map[i] );
}
break;
case GL_PIXEL_MAP_B_TO_B:
for (i = 0; i < mapsize; i++) {
values[i] = FLOAT_TO_UINT( ctx->PixelMaps.BtoB.Map[i] );
}
break;
case GL_PIXEL_MAP_A_TO_A:
for (i = 0; i < mapsize; i++) {
values[i] = FLOAT_TO_UINT( ctx->PixelMaps.AtoA.Map[i] );
}
break;
default:
_mesa_error( ctx, GL_INVALID_ENUM, "glGetPixelMapfv" );
}
if (ctx->Pack.BufferObj->Name) {
@@ -759,9 +660,16 @@ _mesa_GetPixelMapusv( GLenum map, GLushort *values )
{
GET_CURRENT_CONTEXT(ctx);
GLint mapsize, i;
const struct gl_pixelmap *pm;
ASSERT_OUTSIDE_BEGIN_END(ctx);
mapsize = get_map_size(ctx, map);
pm = get_pixelmap(ctx, map);
if (!pm) {
_mesa_error(ctx, GL_INVALID_ENUM, "glGetPixelMapusv(map)");
return;
}
mapsize = pm ? pm->Size : 0;
if (ctx->Pack.BufferObj->Name) {
/* pack pixelmap into PBO */
@@ -793,58 +701,21 @@ _mesa_GetPixelMapusv( GLenum map, GLushort *values )
}
switch (map) {
/* special cases */
case GL_PIXEL_MAP_I_TO_I:
for (i = 0; i < mapsize; i++) {
values[i] = (GLushort) CLAMP(ctx->PixelMaps.ItoI.Map[i], 0.0, 65535.0);
values[i] = (GLushort) CLAMP(ctx->PixelMaps.ItoI.Map[i], 0.0, 65535.);
}
break;
case GL_PIXEL_MAP_S_TO_S:
for (i = 0; i < mapsize; i++) {
values[i] = (GLushort) CLAMP(ctx->PixelMaps.StoS.Map[i], 0.0, 65535.0);
}
break;
case GL_PIXEL_MAP_I_TO_R:
for (i = 0; i < mapsize; i++) {
CLAMPED_FLOAT_TO_USHORT(values[i] , ctx->PixelMaps.ItoR.Map[i] );
}
break;
case GL_PIXEL_MAP_I_TO_G:
for (i = 0; i < mapsize; i++) {
CLAMPED_FLOAT_TO_USHORT(values[i] , ctx->PixelMaps.ItoG.Map[i] );
}
break;
case GL_PIXEL_MAP_I_TO_B:
for (i = 0; i < mapsize; i++) {
CLAMPED_FLOAT_TO_USHORT(values[i] , ctx->PixelMaps.ItoB.Map[i] );
}
break;
case GL_PIXEL_MAP_I_TO_A:
for (i = 0; i < mapsize; i++) {
CLAMPED_FLOAT_TO_USHORT(values[i] , ctx->PixelMaps.ItoA.Map[i] );
}
break;
case GL_PIXEL_MAP_R_TO_R:
for (i = 0; i < mapsize; i++) {
CLAMPED_FLOAT_TO_USHORT(values[i] , ctx->PixelMaps.RtoR.Map[i] );
}
break;
case GL_PIXEL_MAP_G_TO_G:
for (i = 0; i < mapsize; i++) {
CLAMPED_FLOAT_TO_USHORT(values[i] , ctx->PixelMaps.GtoG.Map[i] );
}
break;
case GL_PIXEL_MAP_B_TO_B:
for (i = 0; i < mapsize; i++) {
CLAMPED_FLOAT_TO_USHORT(values[i] , ctx->PixelMaps.BtoB.Map[i] );
}
break;
case GL_PIXEL_MAP_A_TO_A:
for (i = 0; i < mapsize; i++) {
CLAMPED_FLOAT_TO_USHORT(values[i] , ctx->PixelMaps.AtoA.Map[i] );
values[i] = (GLushort) CLAMP(ctx->PixelMaps.StoS.Map[i], 0.0, 65535.);
}
break;
default:
_mesa_error( ctx, GL_INVALID_ENUM, "glGetPixelMapfv" );
for (i = 0; i < mapsize; i++) {
CLAMPED_FLOAT_TO_USHORT(values[i], pm->Map[i] );
}
}
if (ctx->Pack.BufferObj->Name) {