#include "glheader.h"
#include "bufferobj.h"
#include "colormac.h"
#include "context.h"
#include "image.h"
#include "macros.h"
#include "pixel.h"
#include "mtypes.h"
void GLAPIENTRY
_mesa_PixelZoom( GLfloat xfactor, GLfloat yfactor )
{
GET_CURRENT_CONTEXT(ctx);
if (ctx->Pixel.ZoomX == xfactor &&
ctx->Pixel.ZoomY == yfactor)
return;
FLUSH_VERTICES(ctx, _NEW_PIXEL);
ctx->Pixel.ZoomX = xfactor;
ctx->Pixel.ZoomY = yfactor;
}
void GLAPIENTRY
_mesa_PixelStorei( GLenum pname, GLint param )
{
GET_CURRENT_CONTEXT(ctx);
ASSERT_OUTSIDE_BEGIN_END(ctx);
switch (pname) {
case GL_PACK_SWAP_BYTES:
if (param == (GLint)ctx->Pack.SwapBytes)
return;
FLUSH_VERTICES(ctx, _NEW_PACKUNPACK);
ctx->Pack.SwapBytes = param ? GL_TRUE : GL_FALSE;
break;
case GL_PACK_LSB_FIRST:
if (param == (GLint)ctx->Pack.LsbFirst)
return;
FLUSH_VERTICES(ctx, _NEW_PACKUNPACK);
ctx->Pack.LsbFirst = param ? GL_TRUE : GL_FALSE;
break;
case GL_PACK_ROW_LENGTH:
if (param<0) {
_mesa_error( ctx, GL_INVALID_VALUE, "glPixelStore(param)" );
return;
}
if (ctx->Pack.RowLength == param)
return;
FLUSH_VERTICES(ctx, _NEW_PACKUNPACK);
ctx->Pack.RowLength = param;
break;
case GL_PACK_IMAGE_HEIGHT:
if (param<0) {
_mesa_error( ctx, GL_INVALID_VALUE, "glPixelStore(param)" );
return;
}
if (ctx->Pack.ImageHeight == param)
return;
FLUSH_VERTICES(ctx, _NEW_PACKUNPACK);
ctx->Pack.ImageHeight = param;
break;
case GL_PACK_SKIP_PIXELS:
if (param<0) {
_mesa_error( ctx, GL_INVALID_VALUE, "glPixelStore(param)" );
return;
}
if (ctx->Pack.SkipPixels == param)
return;
FLUSH_VERTICES(ctx, _NEW_PACKUNPACK);
ctx->Pack.SkipPixels = param;
break;
case GL_PACK_SKIP_ROWS:
if (param<0) {
_mesa_error( ctx, GL_INVALID_VALUE, "glPixelStore(param)" );
return;
}
if (ctx->Pack.SkipRows == param)
return;
FLUSH_VERTICES(ctx, _NEW_PACKUNPACK);
ctx->Pack.SkipRows = param;
break;
case GL_PACK_SKIP_IMAGES:
if (param<0) {
_mesa_error( ctx, GL_INVALID_VALUE, "glPixelStore(param)" );
return;
}
if (ctx->Pack.SkipImages == param)
return;
FLUSH_VERTICES(ctx, _NEW_PACKUNPACK);
ctx->Pack.SkipImages = param;
break;
case GL_PACK_ALIGNMENT:
if (param!=1 && param!=2 && param!=4 && param!=8) {
_mesa_error( ctx, GL_INVALID_VALUE, "glPixelStore(param)" );
return;
}
if (ctx->Pack.Alignment == param)
return;
FLUSH_VERTICES(ctx, _NEW_PACKUNPACK);
ctx->Pack.Alignment = param;
break;
case GL_PACK_INVERT_MESA:
if (!ctx->Extensions.MESA_pack_invert) {
_mesa_error( ctx, GL_INVALID_ENUM, "glPixelstore(pname)" );
return;
}
if (ctx->Pack.Invert == param)
return;
FLUSH_VERTICES(ctx, _NEW_PACKUNPACK);
ctx->Pack.Invert = param;
break;
case GL_UNPACK_SWAP_BYTES:
if (param == (GLint)ctx->Unpack.SwapBytes)
return;
if ((GLint)ctx->Unpack.SwapBytes == param)
return;
FLUSH_VERTICES(ctx, _NEW_PACKUNPACK);
ctx->Unpack.SwapBytes = param ? GL_TRUE : GL_FALSE;
break;
case GL_UNPACK_LSB_FIRST:
if (param == (GLint)ctx->Unpack.LsbFirst)
return;
if ((GLint)ctx->Unpack.LsbFirst == param)
return;
FLUSH_VERTICES(ctx, _NEW_PACKUNPACK);
ctx->Unpack.LsbFirst = param ? GL_TRUE : GL_FALSE;
break;
case GL_UNPACK_ROW_LENGTH:
if (param<0) {
_mesa_error( ctx, GL_INVALID_VALUE, "glPixelStore(param)" );
return;
}
if (ctx->Unpack.RowLength == param)
return;
FLUSH_VERTICES(ctx, _NEW_PACKUNPACK);
ctx->Unpack.RowLength = param;
break;
case GL_UNPACK_IMAGE_HEIGHT:
if (param<0) {
_mesa_error( ctx, GL_INVALID_VALUE, "glPixelStore(param)" );
return;
}
if (ctx->Unpack.ImageHeight == param)
return;
FLUSH_VERTICES(ctx, _NEW_PACKUNPACK);
ctx->Unpack.ImageHeight = param;
break;
case GL_UNPACK_SKIP_PIXELS:
if (param<0) {
_mesa_error( ctx, GL_INVALID_VALUE, "glPixelStore(param)" );
return;
}
if (ctx->Unpack.SkipPixels == param)
return;
FLUSH_VERTICES(ctx, _NEW_PACKUNPACK);
ctx->Unpack.SkipPixels = param;
break;
case GL_UNPACK_SKIP_ROWS:
if (param<0) {
_mesa_error( ctx, GL_INVALID_VALUE, "glPixelStore(param)" );
return;
}
if (ctx->Unpack.SkipRows == param)
return;
FLUSH_VERTICES(ctx, _NEW_PACKUNPACK);
ctx->Unpack.SkipRows = param;
break;
case GL_UNPACK_SKIP_IMAGES:
if (param < 0) {
_mesa_error( ctx, GL_INVALID_VALUE, "glPixelStore(param)" );
return;
}
if (ctx->Unpack.SkipImages == param)
return;
FLUSH_VERTICES(ctx, _NEW_PACKUNPACK);
ctx->Unpack.SkipImages = param;
break;
case GL_UNPACK_ALIGNMENT:
if (param!=1 && param!=2 && param!=4 && param!=8) {
_mesa_error( ctx, GL_INVALID_VALUE, "glPixelStore" );
return;
}
if (ctx->Unpack.Alignment == param)
return;
FLUSH_VERTICES(ctx, _NEW_PACKUNPACK);
ctx->Unpack.Alignment = param;
break;
case GL_UNPACK_CLIENT_STORAGE_APPLE:
if (param == (GLint)ctx->Unpack.ClientStorage)
return;
FLUSH_VERTICES(ctx, _NEW_PACKUNPACK);
ctx->Unpack.ClientStorage = param ? GL_TRUE : GL_FALSE;
break;
default:
_mesa_error( ctx, GL_INVALID_ENUM, "glPixelStore" );
return;
}
}
void GLAPIENTRY
_mesa_PixelStoref( GLenum pname, GLfloat param )
{
_mesa_PixelStorei( pname, (GLint) param );
}
static void
pixelmap(GLcontext *ctx, GLenum map, GLsizei mapsize, const GLfloat *values)
{
GLint i;
switch (map) {
case GL_PIXEL_MAP_S_TO_S:
ctx->Pixel.MapStoSsize = mapsize;
for (i = 0; i < mapsize; i++) {
ctx->Pixel.MapStoS[i] = IROUND(values[i]);
}
break;
case GL_PIXEL_MAP_I_TO_I:
ctx->Pixel.MapItoIsize = mapsize;
for (i = 0; i < mapsize; i++) {
ctx->Pixel.MapItoI[i] = values[i];
}
break;
case GL_PIXEL_MAP_I_TO_R:
ctx->Pixel.MapItoRsize = mapsize;
for (i = 0; i < mapsize; i++) {
GLfloat val = CLAMP( values[i], 0.0F, 1.0F );
ctx->Pixel.MapItoR[i] = val;
ctx->Pixel.MapItoR8[i] = (GLint) (val * 255.0F);
}
break;
case GL_PIXEL_MAP_I_TO_G:
ctx->Pixel.MapItoGsize = mapsize;
for (i = 0; i < mapsize; i++) {
GLfloat val = CLAMP( values[i], 0.0F, 1.0F );
ctx->Pixel.MapItoG[i] = val;
ctx->Pixel.MapItoG8[i] = (GLint) (val * 255.0F);
}
break;
case GL_PIXEL_MAP_I_TO_B:
ctx->Pixel.MapItoBsize = mapsize;
for (i = 0; i < mapsize; i++) {
GLfloat val = CLAMP( values[i], 0.0F, 1.0F );
ctx->Pixel.MapItoB[i] = val;
ctx->Pixel.MapItoB8[i] = (GLint) (val * 255.0F);
}
break;
case GL_PIXEL_MAP_I_TO_A:
ctx->Pixel.MapItoAsize = mapsize;
for (i = 0; i < mapsize; i++) {
GLfloat val = CLAMP( values[i], 0.0F, 1.0F );
ctx->Pixel.MapItoA[i] = val;
ctx->Pixel.MapItoA8[i] = (GLint) (val * 255.0F);
}
break;
case GL_PIXEL_MAP_R_TO_R:
ctx->Pixel.MapRtoRsize = mapsize;
for (i = 0; i < mapsize; i++) {
ctx->Pixel.MapRtoR[i] = CLAMP( values[i], 0.0F, 1.0F );
}
break;
case GL_PIXEL_MAP_G_TO_G:
ctx->Pixel.MapGtoGsize = mapsize;
for (i = 0; i < mapsize; i++) {
ctx->Pixel.MapGtoG[i] = CLAMP( values[i], 0.0F, 1.0F );
}
break;
case GL_PIXEL_MAP_B_TO_B:
ctx->Pixel.MapBtoBsize = mapsize;
for (i = 0; i < mapsize; i++) {
ctx->Pixel.MapBtoB[i] = CLAMP( values[i], 0.0F, 1.0F );
}
break;
case GL_PIXEL_MAP_A_TO_A:
ctx->Pixel.MapAtoAsize = mapsize;
for (i = 0; i < mapsize; i++) {
ctx->Pixel.MapAtoA[i] = CLAMP( values[i], 0.0F, 1.0F );
}
break;
default:
_mesa_error( ctx, GL_INVALID_ENUM, "glPixelMap(map)" );
}
}
void GLAPIENTRY
_mesa_PixelMapfv( GLenum map, GLsizei mapsize, const GLfloat *values )
{
GET_CURRENT_CONTEXT(ctx);
ASSERT_OUTSIDE_BEGIN_END(ctx);
if (mapsize < 1 || mapsize > MAX_PIXEL_MAP_TABLE) {
_mesa_error( ctx, GL_INVALID_VALUE, "glPixelMapfv(mapsize)" );
return;
}
if (map >= GL_PIXEL_MAP_S_TO_S && map <= GL_PIXEL_MAP_I_TO_A) {
if (_mesa_bitcount((GLuint) mapsize) != 1) {
_mesa_error( ctx, GL_INVALID_VALUE, "glPixelMapfv(mapsize)" );
return;
}
}
FLUSH_VERTICES(ctx, _NEW_PIXEL);
if (ctx->Unpack.BufferObj->Name) {
GLubyte *buf;
ctx->DefaultPacking.BufferObj = ctx->Unpack.BufferObj;
if (!_mesa_validate_pbo_access(1, &ctx->DefaultPacking, mapsize, 1, 1,
GL_INTENSITY, GL_FLOAT, values)) {
_mesa_error(ctx, GL_INVALID_OPERATION,
"glPixelMapfv(invalid PBO access)");
return;
}
ctx->DefaultPacking.BufferObj = ctx->Array.NullBufferObj;
buf = (GLubyte *) ctx->Driver.MapBuffer(ctx, GL_PIXEL_UNPACK_BUFFER_EXT,
GL_READ_ONLY_ARB,
ctx->Unpack.BufferObj);
if (!buf) {
_mesa_error(ctx, GL_INVALID_OPERATION,
"glPixelMapfv(PBO is mapped)");
return;
}
values = (const GLfloat *) ADD_POINTERS(buf, values);
}
else if (!values) {
return;
}
pixelmap(ctx, map, mapsize, values);
if (ctx->Unpack.BufferObj->Name) {
ctx->Driver.UnmapBuffer(ctx, GL_PIXEL_UNPACK_BUFFER_EXT,
ctx->Unpack.BufferObj);
}
}
void GLAPIENTRY
_mesa_PixelMapuiv(GLenum map, GLsizei mapsize, const GLuint *values )
{
GLfloat fvalues[MAX_PIXEL_MAP_TABLE];
GET_CURRENT_CONTEXT(ctx);
ASSERT_OUTSIDE_BEGIN_END(ctx);
if (mapsize < 1 || mapsize > MAX_PIXEL_MAP_TABLE) {
_mesa_error( ctx, GL_INVALID_VALUE, "glPixelMapuiv(mapsize)" );
return;
}
if (map >= GL_PIXEL_MAP_S_TO_S && map <= GL_PIXEL_MAP_I_TO_A) {
if (_mesa_bitcount((GLuint) mapsize) != 1) {
_mesa_error( ctx, GL_INVALID_VALUE, "glPixelMapuiv(mapsize)" );
return;
}
}
FLUSH_VERTICES(ctx, _NEW_PIXEL);
if (ctx->Unpack.BufferObj->Name) {
GLubyte *buf;
ctx->DefaultPacking.BufferObj = ctx->Unpack.BufferObj;
if (!_mesa_validate_pbo_access(1, &ctx->DefaultPacking, mapsize, 1, 1,
GL_INTENSITY, GL_UNSIGNED_INT, values)) {
_mesa_error(ctx, GL_INVALID_OPERATION,
"glPixelMapuiv(invalid PBO access)");
return;
}
ctx->DefaultPacking.BufferObj = ctx->Array.NullBufferObj;
buf = (GLubyte *) ctx->Driver.MapBuffer(ctx, GL_PIXEL_UNPACK_BUFFER_EXT,
GL_READ_ONLY_ARB,
ctx->Unpack.BufferObj);
if (!buf) {
_mesa_error(ctx, GL_INVALID_OPERATION,
"glPixelMapuiv(PBO is mapped)");
return;
}
values = (const GLuint *) ADD_POINTERS(buf, values);
}
else if (!values) {
return;
}
if (map == GL_PIXEL_MAP_I_TO_I || map == GL_PIXEL_MAP_S_TO_S) {
GLint i;
for (i = 0; i < mapsize; i++) {
fvalues[i] = (GLfloat) values[i];
}
}
else {
GLint i;
for (i = 0; i < mapsize; i++) {
fvalues[i] = UINT_TO_FLOAT( values[i] );
}
}
if (ctx->Unpack.BufferObj->Name) {
ctx->Driver.UnmapBuffer(ctx, GL_PIXEL_UNPACK_BUFFER_EXT,
ctx->Unpack.BufferObj);
}
pixelmap(ctx, map, mapsize, fvalues);
}
void GLAPIENTRY
_mesa_PixelMapusv(GLenum map, GLsizei mapsize, const GLushort *values )
{
GLfloat fvalues[MAX_PIXEL_MAP_TABLE];
GET_CURRENT_CONTEXT(ctx);
ASSERT_OUTSIDE_BEGIN_END(ctx);
if (mapsize < 1 || mapsize > MAX_PIXEL_MAP_TABLE) {
_mesa_error( ctx, GL_INVALID_VALUE, "glPixelMapusv(mapsize)" );
return;
}
if (map >= GL_PIXEL_MAP_S_TO_S && map <= GL_PIXEL_MAP_I_TO_A) {
if (_mesa_bitcount((GLuint) mapsize) != 1) {
_mesa_error( ctx, GL_INVALID_VALUE, "glPixelMapuiv(mapsize)" );
return;
}
}
FLUSH_VERTICES(ctx, _NEW_PIXEL);
if (ctx->Unpack.BufferObj->Name) {
GLubyte *buf;
ctx->DefaultPacking.BufferObj = ctx->Unpack.BufferObj;
if (!_mesa_validate_pbo_access(1, &ctx->DefaultPacking, mapsize, 1, 1,
GL_INTENSITY, GL_UNSIGNED_SHORT,
values)) {
_mesa_error(ctx, GL_INVALID_OPERATION,
"glPixelMapusv(invalid PBO access)");
return;
}
ctx->DefaultPacking.BufferObj = ctx->Array.NullBufferObj;
buf = (GLubyte *) ctx->Driver.MapBuffer(ctx, GL_PIXEL_UNPACK_BUFFER_EXT,
GL_READ_ONLY_ARB,
ctx->Unpack.BufferObj);
if (!buf) {
_mesa_error(ctx, GL_INVALID_OPERATION,
"glPixelMapusv(PBO is mapped)");
return;
}
values = (const GLushort *) ADD_POINTERS(buf, values);
}
else if (!values) {
return;
}
if (map == GL_PIXEL_MAP_I_TO_I || map == GL_PIXEL_MAP_S_TO_S) {
GLint i;
for (i = 0; i < mapsize; i++) {
fvalues[i] = (GLfloat) values[i];
}
}
else {
GLint i;
for (i = 0; i < mapsize; i++) {
fvalues[i] = USHORT_TO_FLOAT( values[i] );
}
}
if (ctx->Unpack.BufferObj->Name) {
ctx->Driver.UnmapBuffer(ctx, GL_PIXEL_UNPACK_BUFFER_EXT,
ctx->Unpack.BufferObj);
}
pixelmap(ctx, map, mapsize, fvalues);
}
static GLuint
get_map_size(GLcontext *ctx, GLenum map)
{
switch (map) {
case GL_PIXEL_MAP_I_TO_I:
return ctx->Pixel.MapItoIsize;
case GL_PIXEL_MAP_S_TO_S:
return ctx->Pixel.MapStoSsize;
case GL_PIXEL_MAP_I_TO_R:
return ctx->Pixel.MapItoRsize;
case GL_PIXEL_MAP_I_TO_G:
return ctx->Pixel.MapItoGsize;
case GL_PIXEL_MAP_I_TO_B:
return ctx->Pixel.MapItoBsize;
case GL_PIXEL_MAP_I_TO_A:
return ctx->Pixel.MapItoAsize;
case GL_PIXEL_MAP_R_TO_R:
return ctx->Pixel.MapRtoRsize;
case GL_PIXEL_MAP_G_TO_G:
return ctx->Pixel.MapGtoGsize;
case GL_PIXEL_MAP_B_TO_B:
return ctx->Pixel.MapBtoBsize;
case GL_PIXEL_MAP_A_TO_A:
return ctx->Pixel.MapAtoAsize;
default:
return 0;
}
}
void GLAPIENTRY
_mesa_GetPixelMapfv( GLenum map, GLfloat *values )
{
GET_CURRENT_CONTEXT(ctx);
GLuint mapsize, i;
ASSERT_OUTSIDE_BEGIN_END(ctx);
mapsize = get_map_size(ctx, map);
if (ctx->Pack.BufferObj->Name) {
GLubyte *buf;
ctx->DefaultPacking.BufferObj = ctx->Pack.BufferObj;
if (!_mesa_validate_pbo_access(1, &ctx->DefaultPacking, mapsize, 1, 1,
GL_INTENSITY, GL_FLOAT, values)) {
_mesa_error(ctx, GL_INVALID_OPERATION,
"glGetPixelMapfv(invalid PBO access)");
return;
}
ctx->DefaultPacking.BufferObj = ctx->Array.NullBufferObj;
buf = (GLubyte *) ctx->Driver.MapBuffer(ctx, GL_PIXEL_PACK_BUFFER_EXT,
GL_WRITE_ONLY_ARB,
ctx->Pack.BufferObj);
if (!buf) {
_mesa_error(ctx, GL_INVALID_OPERATION,
"glGetPixelMapfv(PBO is mapped)");
return;
}
values = (GLfloat *) ADD_POINTERS(buf, values);
}
else if (!values) {
return;
}
switch (map) {
case GL_PIXEL_MAP_I_TO_I:
MEMCPY(values, ctx->Pixel.MapItoI, mapsize * sizeof(GLfloat));
break;
case GL_PIXEL_MAP_S_TO_S:
for (i = 0; i < mapsize; i++) {
values[i] = (GLfloat) ctx->Pixel.MapStoS[i];
}
break;
case GL_PIXEL_MAP_I_TO_R:
MEMCPY(values, ctx->Pixel.MapItoR, mapsize * sizeof(GLfloat));
break;
case GL_PIXEL_MAP_I_TO_G:
MEMCPY(values, ctx->Pixel.MapItoG, mapsize * sizeof(GLfloat));
break;
case GL_PIXEL_MAP_I_TO_B:
MEMCPY(values, ctx->Pixel.MapItoB, mapsize * sizeof(GLfloat));
break;
case GL_PIXEL_MAP_I_TO_A:
MEMCPY(values, ctx->Pixel.MapItoA, mapsize * sizeof(GLfloat));
break;
case GL_PIXEL_MAP_R_TO_R:
MEMCPY(values, ctx->Pixel.MapRtoR, mapsize * sizeof(GLfloat));
break;
case GL_PIXEL_MAP_G_TO_G:
MEMCPY(values, ctx->Pixel.MapGtoG, mapsize * sizeof(GLfloat));
break;
case GL_PIXEL_MAP_B_TO_B:
MEMCPY(values, ctx->Pixel.MapBtoB, mapsize * sizeof(GLfloat));
break;
case GL_PIXEL_MAP_A_TO_A:
MEMCPY(values, ctx->Pixel.MapAtoA, mapsize * sizeof(GLfloat));
break;
default:
_mesa_error( ctx, GL_INVALID_ENUM, "glGetPixelMapfv" );
}
if (ctx->Pack.BufferObj->Name) {
ctx->Driver.UnmapBuffer(ctx, GL_PIXEL_PACK_BUFFER_EXT,
ctx->Pack.BufferObj);
}
}
void GLAPIENTRY
_mesa_GetPixelMapuiv( GLenum map, GLuint *values )
{
GET_CURRENT_CONTEXT(ctx);
GLint mapsize, i;
ASSERT_OUTSIDE_BEGIN_END(ctx);
mapsize = get_map_size(ctx, map);
if (ctx->Pack.BufferObj->Name) {
GLubyte *buf;
ctx->DefaultPacking.BufferObj = ctx->Pack.BufferObj;
if (!_mesa_validate_pbo_access(1, &ctx->DefaultPacking, mapsize, 1, 1,
GL_INTENSITY, GL_UNSIGNED_INT, values)) {
_mesa_error(ctx, GL_INVALID_OPERATION,
"glGetPixelMapuiv(invalid PBO access)");
return;
}
ctx->DefaultPacking.BufferObj = ctx->Array.NullBufferObj;
buf = (GLubyte *) ctx->Driver.MapBuffer(ctx, GL_PIXEL_PACK_BUFFER_EXT,
GL_WRITE_ONLY_ARB,
ctx->Pack.BufferObj);
if (!buf) {
_mesa_error(ctx, GL_INVALID_OPERATION,
"glGetPixelMapuiv(PBO is mapped)");
return;
}
values = (GLuint *) ADD_POINTERS(buf, values);
}
else if (!values) {
return;
}
switch (map) {
case GL_PIXEL_MAP_I_TO_I:
for (i = 0; i < mapsize; i++) {
values[i] = FLOAT_TO_UINT( ctx->Pixel.MapItoI[i] );
}
break;
case GL_PIXEL_MAP_S_TO_S:
MEMCPY(values, ctx->Pixel.MapStoS, mapsize * sizeof(GLint));
break;
case GL_PIXEL_MAP_I_TO_R:
for (i = 0; i < mapsize; i++) {
values[i] = FLOAT_TO_UINT( ctx->Pixel.MapItoR[i] );
}
break;
case GL_PIXEL_MAP_I_TO_G:
for (i = 0; i < mapsize; i++) {
values[i] = FLOAT_TO_UINT( ctx->Pixel.MapItoG[i] );
}
break;
case GL_PIXEL_MAP_I_TO_B:
for (i = 0; i < mapsize; i++) {
values[i] = FLOAT_TO_UINT( ctx->Pixel.MapItoB[i] );
}
break;
case GL_PIXEL_MAP_I_TO_A:
for (i = 0; i < mapsize; i++) {
values[i] = FLOAT_TO_UINT( ctx->Pixel.MapItoA[i] );
}
break;
case GL_PIXEL_MAP_R_TO_R:
for (i = 0; i < mapsize; i++) {
values[i] = FLOAT_TO_UINT( ctx->Pixel.MapRtoR[i] );
}
break;
case GL_PIXEL_MAP_G_TO_G:
for (i = 0; i < mapsize; i++) {
values[i] = FLOAT_TO_UINT( ctx->Pixel.MapGtoG[i] );
}
break;
case GL_PIXEL_MAP_B_TO_B:
for (i = 0; i < mapsize; i++) {
values[i] = FLOAT_TO_UINT( ctx->Pixel.MapBtoB[i] );
}
break;
case GL_PIXEL_MAP_A_TO_A:
for (i = 0; i < mapsize; i++) {
values[i] = FLOAT_TO_UINT( ctx->Pixel.MapAtoA[i] );
}
break;
default:
_mesa_error( ctx, GL_INVALID_ENUM, "glGetPixelMapfv" );
}
if (ctx->Pack.BufferObj->Name) {
ctx->Driver.UnmapBuffer(ctx, GL_PIXEL_PACK_BUFFER_EXT,
ctx->Pack.BufferObj);
}
}
void GLAPIENTRY
_mesa_GetPixelMapusv( GLenum map, GLushort *values )
{
GET_CURRENT_CONTEXT(ctx);
GLint mapsize, i;
ASSERT_OUTSIDE_BEGIN_END(ctx);
mapsize = get_map_size(ctx, map);
if (ctx->Pack.BufferObj->Name) {
GLubyte *buf;
ctx->DefaultPacking.BufferObj = ctx->Pack.BufferObj;
if (!_mesa_validate_pbo_access(1, &ctx->DefaultPacking, mapsize, 1, 1,
GL_INTENSITY, GL_UNSIGNED_SHORT,
values)) {
_mesa_error(ctx, GL_INVALID_OPERATION,
"glGetPixelMapusv(invalid PBO access)");
return;
}
ctx->DefaultPacking.BufferObj = ctx->Array.NullBufferObj;
buf = (GLubyte *) ctx->Driver.MapBuffer(ctx, GL_PIXEL_PACK_BUFFER_EXT,
GL_WRITE_ONLY_ARB,
ctx->Pack.BufferObj);
if (!buf) {
_mesa_error(ctx, GL_INVALID_OPERATION,
"glGetPixelMapusv(PBO is mapped)");
return;
}
values = (GLushort *) ADD_POINTERS(buf, values);
}
else if (!values) {
return;
}
switch (map) {
case GL_PIXEL_MAP_I_TO_I:
for (i = 0; i < mapsize; i++) {
values[i] = (GLushort) CLAMP(ctx->Pixel.MapItoI[i], 0.0, 65535.0);
}
break;
case GL_PIXEL_MAP_S_TO_S:
for (i = 0; i < mapsize; i++) {
values[i] = (GLushort) CLAMP(ctx->Pixel.MapStoS[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->Pixel.MapItoR[i] );
}
break;
case GL_PIXEL_MAP_I_TO_G:
for (i = 0; i < mapsize; i++) {
CLAMPED_FLOAT_TO_USHORT(values[i] , ctx->Pixel.MapItoG[i] );
}
break;
case GL_PIXEL_MAP_I_TO_B:
for (i = 0; i < mapsize; i++) {
CLAMPED_FLOAT_TO_USHORT(values[i] , ctx->Pixel.MapItoB[i] );
}
break;
case GL_PIXEL_MAP_I_TO_A:
for (i = 0; i < mapsize; i++) {
CLAMPED_FLOAT_TO_USHORT(values[i] , ctx->Pixel.MapItoA[i] );
}
break;
case GL_PIXEL_MAP_R_TO_R:
for (i = 0; i < mapsize; i++) {
CLAMPED_FLOAT_TO_USHORT(values[i] , ctx->Pixel.MapRtoR[i] );
}
break;
case GL_PIXEL_MAP_G_TO_G:
for (i = 0; i < mapsize; i++) {
CLAMPED_FLOAT_TO_USHORT(values[i] , ctx->Pixel.MapGtoG[i] );
}
break;
case GL_PIXEL_MAP_B_TO_B:
for (i = 0; i < mapsize; i++) {
CLAMPED_FLOAT_TO_USHORT(values[i] , ctx->Pixel.MapBtoB[i] );
}
break;
case GL_PIXEL_MAP_A_TO_A:
for (i = 0; i < mapsize; i++) {
CLAMPED_FLOAT_TO_USHORT(values[i] , ctx->Pixel.MapAtoA[i] );
}
break;
default:
_mesa_error( ctx, GL_INVALID_ENUM, "glGetPixelMapfv" );
}
if (ctx->Pack.BufferObj->Name) {
ctx->Driver.UnmapBuffer(ctx, GL_PIXEL_PACK_BUFFER_EXT,
ctx->Pack.BufferObj);
}
}
void GLAPIENTRY
_mesa_PixelTransferf( GLenum pname, GLfloat param )
{
GET_CURRENT_CONTEXT(ctx);
ASSERT_OUTSIDE_BEGIN_END(ctx);
switch (pname) {
case GL_MAP_COLOR:
if (ctx->Pixel.MapColorFlag == (param ? GL_TRUE : GL_FALSE))
return;
FLUSH_VERTICES(ctx, _NEW_PIXEL);
ctx->Pixel.MapColorFlag = param ? GL_TRUE : GL_FALSE;
break;
case GL_MAP_STENCIL:
if (ctx->Pixel.MapStencilFlag == (param ? GL_TRUE : GL_FALSE))
return;
FLUSH_VERTICES(ctx, _NEW_PIXEL);
ctx->Pixel.MapStencilFlag = param ? GL_TRUE : GL_FALSE;
break;
case GL_INDEX_SHIFT:
if (ctx->Pixel.IndexShift == (GLint) param)
return;
FLUSH_VERTICES(ctx, _NEW_PIXEL);
ctx->Pixel.IndexShift = (GLint) param;
break;
case GL_INDEX_OFFSET:
if (ctx->Pixel.IndexOffset == (GLint) param)
return;
FLUSH_VERTICES(ctx, _NEW_PIXEL);
ctx->Pixel.IndexOffset = (GLint) param;
break;
case GL_RED_SCALE:
if (ctx->Pixel.RedScale == param)
return;
FLUSH_VERTICES(ctx, _NEW_PIXEL);
ctx->Pixel.RedScale = param;
break;
case GL_RED_BIAS:
if (ctx->Pixel.RedBias == param)
return;
FLUSH_VERTICES(ctx, _NEW_PIXEL);
ctx->Pixel.RedBias = param;
break;
case GL_GREEN_SCALE:
if (ctx->Pixel.GreenScale == param)
return;
FLUSH_VERTICES(ctx, _NEW_PIXEL);
ctx->Pixel.GreenScale = param;
break;
case GL_GREEN_BIAS:
if (ctx->Pixel.GreenBias == param)
return;
FLUSH_VERTICES(ctx, _NEW_PIXEL);
ctx->Pixel.GreenBias = param;
break;
case GL_BLUE_SCALE:
if (ctx->Pixel.BlueScale == param)
return;
FLUSH_VERTICES(ctx, _NEW_PIXEL);
ctx->Pixel.BlueScale = param;
break;
case GL_BLUE_BIAS:
if (ctx->Pixel.BlueBias == param)
return;
FLUSH_VERTICES(ctx, _NEW_PIXEL);
ctx->Pixel.BlueBias = param;
break;
case GL_ALPHA_SCALE:
if (ctx->Pixel.AlphaScale == param)
return;
FLUSH_VERTICES(ctx, _NEW_PIXEL);
ctx->Pixel.AlphaScale = param;
break;
case GL_ALPHA_BIAS:
if (ctx->Pixel.AlphaBias == param)
return;
FLUSH_VERTICES(ctx, _NEW_PIXEL);
ctx->Pixel.AlphaBias = param;
break;
case GL_DEPTH_SCALE:
if (ctx->Pixel.DepthScale == param)
return;
FLUSH_VERTICES(ctx, _NEW_PIXEL);
ctx->Pixel.DepthScale = param;
break;
case GL_DEPTH_BIAS:
if (ctx->Pixel.DepthBias == param)
return;
FLUSH_VERTICES(ctx, _NEW_PIXEL);
ctx->Pixel.DepthBias = param;
break;
case GL_POST_COLOR_MATRIX_RED_SCALE:
if (ctx->Pixel.PostColorMatrixScale[0] == param)
return;
FLUSH_VERTICES(ctx, _NEW_PIXEL);
ctx->Pixel.PostColorMatrixScale[0] = param;
break;
case GL_POST_COLOR_MATRIX_RED_BIAS:
if (ctx->Pixel.PostColorMatrixBias[0] == param)
return;
FLUSH_VERTICES(ctx, _NEW_PIXEL);
ctx->Pixel.PostColorMatrixBias[0] = param;
break;
case GL_POST_COLOR_MATRIX_GREEN_SCALE:
if (ctx->Pixel.PostColorMatrixScale[1] == param)
return;
FLUSH_VERTICES(ctx, _NEW_PIXEL);
ctx->Pixel.PostColorMatrixScale[1] = param;
break;
case GL_POST_COLOR_MATRIX_GREEN_BIAS:
if (ctx->Pixel.PostColorMatrixBias[1] == param)
return;
FLUSH_VERTICES(ctx, _NEW_PIXEL);
ctx->Pixel.PostColorMatrixBias[1] = param;
break;
case GL_POST_COLOR_MATRIX_BLUE_SCALE:
if (ctx->Pixel.PostColorMatrixScale[2] == param)
return;
FLUSH_VERTICES(ctx, _NEW_PIXEL);
ctx->Pixel.PostColorMatrixScale[2] = param;
break;
case GL_POST_COLOR_MATRIX_BLUE_BIAS:
if (ctx->Pixel.PostColorMatrixBias[2] == param)
return;
FLUSH_VERTICES(ctx, _NEW_PIXEL);
ctx->Pixel.PostColorMatrixBias[2] = param;
break;
case GL_POST_COLOR_MATRIX_ALPHA_SCALE:
if (ctx->Pixel.PostColorMatrixScale[3] == param)
return;
FLUSH_VERTICES(ctx, _NEW_PIXEL);
ctx->Pixel.PostColorMatrixScale[3] = param;
break;
case GL_POST_COLOR_MATRIX_ALPHA_BIAS:
if (ctx->Pixel.PostColorMatrixBias[3] == param)
return;
FLUSH_VERTICES(ctx, _NEW_PIXEL);
ctx->Pixel.PostColorMatrixBias[3] = param;
break;
case GL_POST_CONVOLUTION_RED_SCALE:
if (ctx->Pixel.PostConvolutionScale[0] == param)
return;
FLUSH_VERTICES(ctx, _NEW_PIXEL);
ctx->Pixel.PostConvolutionScale[0] = param;
break;
case GL_POST_CONVOLUTION_RED_BIAS:
if (ctx->Pixel.PostConvolutionBias[0] == param)
return;
FLUSH_VERTICES(ctx, _NEW_PIXEL);
ctx->Pixel.PostConvolutionBias[0] = param;
break;
case GL_POST_CONVOLUTION_GREEN_SCALE:
if (ctx->Pixel.PostConvolutionScale[1] == param)
return;
FLUSH_VERTICES(ctx, _NEW_PIXEL);
ctx->Pixel.PostConvolutionScale[1] = param;
break;
case GL_POST_CONVOLUTION_GREEN_BIAS:
if (ctx->Pixel.PostConvolutionBias[1] == param)
return;
FLUSH_VERTICES(ctx, _NEW_PIXEL);
ctx->Pixel.PostConvolutionBias[1] = param;
break;
case GL_POST_CONVOLUTION_BLUE_SCALE:
if (ctx->Pixel.PostConvolutionScale[2] == param)
return;
FLUSH_VERTICES(ctx, _NEW_PIXEL);
ctx->Pixel.PostConvolutionScale[2] = param;
break;
case GL_POST_CONVOLUTION_BLUE_BIAS:
if (ctx->Pixel.PostConvolutionBias[2] == param)
return;
FLUSH_VERTICES(ctx, _NEW_PIXEL);
ctx->Pixel.PostConvolutionBias[2] = param;
break;
case GL_POST_CONVOLUTION_ALPHA_SCALE:
if (ctx->Pixel.PostConvolutionScale[2] == param)
return;
FLUSH_VERTICES(ctx, _NEW_PIXEL);
ctx->Pixel.PostConvolutionScale[2] = param;
break;
case GL_POST_CONVOLUTION_ALPHA_BIAS:
if (ctx->Pixel.PostConvolutionBias[2] == param)
return;
FLUSH_VERTICES(ctx, _NEW_PIXEL);
ctx->Pixel.PostConvolutionBias[2] = param;
break;
default:
_mesa_error( ctx, GL_INVALID_ENUM, "glPixelTransfer(pname)" );
return;
}
}
void GLAPIENTRY
_mesa_PixelTransferi( GLenum pname, GLint param )
{
_mesa_PixelTransferf( pname, (GLfloat) param );
}
void
_mesa_scale_and_bias_rgba(GLuint n, GLfloat rgba[][4],
GLfloat rScale, GLfloat gScale,
GLfloat bScale, GLfloat aScale,
GLfloat rBias, GLfloat gBias,
GLfloat bBias, GLfloat aBias)
{
if (rScale != 1.0 || rBias != 0.0) {
GLuint i;
for (i = 0; i < n; i++) {
rgba[i][RCOMP] = rgba[i][RCOMP] * rScale + rBias;
}
}
if (gScale != 1.0 || gBias != 0.0) {
GLuint i;
for (i = 0; i < n; i++) {
rgba[i][GCOMP] = rgba[i][GCOMP] * gScale + gBias;
}
}
if (bScale != 1.0 || bBias != 0.0) {
GLuint i;
for (i = 0; i < n; i++) {
rgba[i][BCOMP] = rgba[i][BCOMP] * bScale + bBias;
}
}
if (aScale != 1.0 || aBias != 0.0) {
GLuint i;
for (i = 0; i < n; i++) {
rgba[i][ACOMP] = rgba[i][ACOMP] * aScale + aBias;
}
}
}
void
_mesa_map_rgba( const GLcontext *ctx, GLuint n, GLfloat rgba[][4] )
{
const GLfloat rscale = (GLfloat) (ctx->Pixel.MapRtoRsize - 1);
const GLfloat gscale = (GLfloat) (ctx->Pixel.MapGtoGsize - 1);
const GLfloat bscale = (GLfloat) (ctx->Pixel.MapBtoBsize - 1);
const GLfloat ascale = (GLfloat) (ctx->Pixel.MapAtoAsize - 1);
const GLfloat *rMap = ctx->Pixel.MapRtoR;
const GLfloat *gMap = ctx->Pixel.MapGtoG;
const GLfloat *bMap = ctx->Pixel.MapBtoB;
const GLfloat *aMap = ctx->Pixel.MapAtoA;
GLuint i;
for (i=0;i<n;i++) {
GLfloat r = CLAMP(rgba[i][RCOMP], 0.0F, 1.0F);
GLfloat g = CLAMP(rgba[i][GCOMP], 0.0F, 1.0F);
GLfloat b = CLAMP(rgba[i][BCOMP], 0.0F, 1.0F);
GLfloat a = CLAMP(rgba[i][ACOMP], 0.0F, 1.0F);
rgba[i][RCOMP] = rMap[IROUND(r * rscale)];
rgba[i][GCOMP] = gMap[IROUND(g * gscale)];
rgba[i][BCOMP] = bMap[IROUND(b * bscale)];
rgba[i][ACOMP] = aMap[IROUND(a * ascale)];
}
}
void
_mesa_transform_rgba(const GLcontext *ctx, GLuint n, GLfloat rgba[][4])
{
const GLfloat rs = ctx->Pixel.PostColorMatrixScale[0];
const GLfloat rb = ctx->Pixel.PostColorMatrixBias[0];
const GLfloat gs = ctx->Pixel.PostColorMatrixScale[1];
const GLfloat gb = ctx->Pixel.PostColorMatrixBias[1];
const GLfloat bs = ctx->Pixel.PostColorMatrixScale[2];
const GLfloat bb = ctx->Pixel.PostColorMatrixBias[2];
const GLfloat as = ctx->Pixel.PostColorMatrixScale[3];
const GLfloat ab = ctx->Pixel.PostColorMatrixBias[3];
const GLfloat *m = ctx->ColorMatrixStack.Top->m;
GLuint i;
for (i = 0; i < n; i++) {
const GLfloat r = rgba[i][RCOMP];
const GLfloat g = rgba[i][GCOMP];
const GLfloat b = rgba[i][BCOMP];
const GLfloat a = rgba[i][ACOMP];
rgba[i][RCOMP] = (m[0] * r + m[4] * g + m[ 8] * b + m[12] * a) * rs + rb;
rgba[i][GCOMP] = (m[1] * r + m[5] * g + m[ 9] * b + m[13] * a) * gs + gb;
rgba[i][BCOMP] = (m[2] * r + m[6] * g + m[10] * b + m[14] * a) * bs + bb;
rgba[i][ACOMP] = (m[3] * r + m[7] * g + m[11] * b + m[15] * a) * as + ab;
}
}
void
_mesa_lookup_rgba_float(const struct gl_color_table *table,
GLuint n, GLfloat rgba[][4])
{
const GLint max = table->Size - 1;
const GLfloat scale = (GLfloat) max;
const GLfloat *lut = table->TableF;
GLuint i;
if (!table->TableF || table->Size == 0)
return;
switch (table->_BaseFormat) {
case GL_INTENSITY:
for (i = 0; i < n; i++) {
GLint j = IROUND(rgba[i][RCOMP] * scale);
GLfloat c = lut[CLAMP(j, 0, max)];
rgba[i][RCOMP] =
rgba[i][GCOMP] =
rgba[i][BCOMP] =
rgba[i][ACOMP] = c;
}
break;
case GL_LUMINANCE:
for (i = 0; i < n; i++) {
GLint j = IROUND(rgba[i][RCOMP] * scale);
GLfloat c = lut[CLAMP(j, 0, max)];
rgba[i][RCOMP] =
rgba[i][GCOMP] =
rgba[i][BCOMP] = c;
}
break;
case GL_ALPHA:
for (i = 0; i < n; i++) {
GLint j = IROUND(rgba[i][ACOMP] * scale);
rgba[i][ACOMP] = lut[CLAMP(j, 0, max)];
}
break;
case GL_LUMINANCE_ALPHA:
for (i = 0; i < n; i++) {
GLint jL = IROUND(rgba[i][RCOMP] * scale);
GLint jA = IROUND(rgba[i][ACOMP] * scale);
GLfloat luminance, alpha;
jL = CLAMP(jL, 0, max);
jA = CLAMP(jA, 0, max);
luminance = lut[jL * 2 + 0];
alpha = lut[jA * 2 + 1];
rgba[i][RCOMP] =
rgba[i][GCOMP] =
rgba[i][BCOMP] = luminance;
rgba[i][ACOMP] = alpha;;
}
break;
case GL_RGB:
for (i = 0; i < n; i++) {
GLint jR = IROUND(rgba[i][RCOMP] * scale);
GLint jG = IROUND(rgba[i][GCOMP] * scale);
GLint jB = IROUND(rgba[i][BCOMP] * scale);
jR = CLAMP(jR, 0, max);
jG = CLAMP(jG, 0, max);
jB = CLAMP(jB, 0, max);
rgba[i][RCOMP] = lut[jR * 3 + 0];
rgba[i][GCOMP] = lut[jG * 3 + 1];
rgba[i][BCOMP] = lut[jB * 3 + 2];
}
break;
case GL_RGBA:
for (i = 0; i < n; i++) {
GLint jR = IROUND(rgba[i][RCOMP] * scale);
GLint jG = IROUND(rgba[i][GCOMP] * scale);
GLint jB = IROUND(rgba[i][BCOMP] * scale);
GLint jA = IROUND(rgba[i][ACOMP] * scale);
jR = CLAMP(jR, 0, max);
jG = CLAMP(jG, 0, max);
jB = CLAMP(jB, 0, max);
jA = CLAMP(jA, 0, max);
rgba[i][RCOMP] = lut[jR * 4 + 0];
rgba[i][GCOMP] = lut[jG * 4 + 1];
rgba[i][BCOMP] = lut[jB * 4 + 2];
rgba[i][ACOMP] = lut[jA * 4 + 3];
}
break;
default:
_mesa_problem(NULL, "Bad format in _mesa_lookup_rgba_float");
return;
}
}
void
_mesa_lookup_rgba_ubyte(const struct gl_color_table *table,
GLuint n, GLubyte rgba[][4])
{
const GLubyte *lut = table->TableUB;
const GLfloat scale = (GLfloat) (table->Size - 1) / 255.0;
GLuint i;
if (!table->TableUB || table->Size == 0)
return;
switch (table->_BaseFormat) {
case GL_INTENSITY:
if (table->Size == 256) {
for (i = 0; i < n; i++) {
const GLubyte c = lut[rgba[i][RCOMP]];
rgba[i][RCOMP] =
rgba[i][GCOMP] =
rgba[i][BCOMP] =
rgba[i][ACOMP] = c;
}
}
else {
for (i = 0; i < n; i++) {
GLint j = IROUND((GLfloat) rgba[i][RCOMP] * scale);
rgba[i][RCOMP] =
rgba[i][GCOMP] =
rgba[i][BCOMP] =
rgba[i][ACOMP] = lut[j];
}
}
break;
case GL_LUMINANCE:
if (table->Size == 256) {
for (i = 0; i < n; i++) {
const GLubyte c = lut[rgba[i][RCOMP]];
rgba[i][RCOMP] =
rgba[i][GCOMP] =
rgba[i][BCOMP] = c;
}
}
else {
for (i = 0; i < n; i++) {
GLint j = IROUND((GLfloat) rgba[i][RCOMP] * scale);
rgba[i][RCOMP] =
rgba[i][GCOMP] =
rgba[i][BCOMP] = lut[j];
}
}
break;
case GL_ALPHA:
if (table->Size == 256) {
for (i = 0; i < n; i++) {
rgba[i][ACOMP] = lut[rgba[i][ACOMP]];
}
}
else {
for (i = 0; i < n; i++) {
GLint j = IROUND((GLfloat) rgba[i][ACOMP] * scale);
rgba[i][ACOMP] = lut[j];
}
}
break;
case GL_LUMINANCE_ALPHA:
if (table->Size == 256) {
for (i = 0; i < n; i++) {
GLubyte l = lut[rgba[i][RCOMP] * 2 + 0];
GLubyte a = lut[rgba[i][ACOMP] * 2 + 1];;
rgba[i][RCOMP] =
rgba[i][GCOMP] =
rgba[i][BCOMP] = l;
rgba[i][ACOMP] = a;
}
}
else {
for (i = 0; i < n; i++) {
GLint jL = IROUND((GLfloat) rgba[i][RCOMP] * scale);
GLint jA = IROUND((GLfloat) rgba[i][ACOMP] * scale);
GLubyte luminance = lut[jL * 2 + 0];
GLubyte alpha = lut[jA * 2 + 1];
rgba[i][RCOMP] =
rgba[i][GCOMP] =
rgba[i][BCOMP] = luminance;
rgba[i][ACOMP] = alpha;
}
}
break;
case GL_RGB:
if (table->Size == 256) {
for (i = 0; i < n; i++) {
rgba[i][RCOMP] = lut[rgba[i][RCOMP] * 3 + 0];
rgba[i][GCOMP] = lut[rgba[i][GCOMP] * 3 + 1];
rgba[i][BCOMP] = lut[rgba[i][BCOMP] * 3 + 2];
}
}
else {
for (i = 0; i < n; i++) {
GLint jR = IROUND((GLfloat) rgba[i][RCOMP] * scale);
GLint jG = IROUND((GLfloat) rgba[i][GCOMP] * scale);
GLint jB = IROUND((GLfloat) rgba[i][BCOMP] * scale);
rgba[i][RCOMP] = lut[jR * 3 + 0];
rgba[i][GCOMP] = lut[jG * 3 + 1];
rgba[i][BCOMP] = lut[jB * 3 + 2];
}
}
break;
case GL_RGBA:
if (table->Size == 256) {
for (i = 0; i < n; i++) {
rgba[i][RCOMP] = lut[rgba[i][RCOMP] * 4 + 0];
rgba[i][GCOMP] = lut[rgba[i][GCOMP] * 4 + 1];
rgba[i][BCOMP] = lut[rgba[i][BCOMP] * 4 + 2];
rgba[i][ACOMP] = lut[rgba[i][ACOMP] * 4 + 3];
}
}
else {
for (i = 0; i < n; i++) {
GLint jR = IROUND((GLfloat) rgba[i][RCOMP] * scale);
GLint jG = IROUND((GLfloat) rgba[i][GCOMP] * scale);
GLint jB = IROUND((GLfloat) rgba[i][BCOMP] * scale);
GLint jA = IROUND((GLfloat) rgba[i][ACOMP] * scale);
CLAMPED_FLOAT_TO_CHAN(rgba[i][RCOMP], lut[jR * 4 + 0]);
CLAMPED_FLOAT_TO_CHAN(rgba[i][GCOMP], lut[jG * 4 + 1]);
CLAMPED_FLOAT_TO_CHAN(rgba[i][BCOMP], lut[jB * 4 + 2]);
CLAMPED_FLOAT_TO_CHAN(rgba[i][ACOMP], lut[jA * 4 + 3]);
}
}
break;
default:
_mesa_problem(NULL, "Bad format in _mesa_lookup_rgba_chan");
return;
}
}
void
_mesa_map_ci_to_rgba( const GLcontext *ctx, GLuint n,
const GLuint index[], GLfloat rgba[][4] )
{
GLuint rmask = ctx->Pixel.MapItoRsize - 1;
GLuint gmask = ctx->Pixel.MapItoGsize - 1;
GLuint bmask = ctx->Pixel.MapItoBsize - 1;
GLuint amask = ctx->Pixel.MapItoAsize - 1;
const GLfloat *rMap = ctx->Pixel.MapItoR;
const GLfloat *gMap = ctx->Pixel.MapItoG;
const GLfloat *bMap = ctx->Pixel.MapItoB;
const GLfloat *aMap = ctx->Pixel.MapItoA;
GLuint i;
for (i=0;i<n;i++) {
rgba[i][RCOMP] = rMap[index[i] & rmask];
rgba[i][GCOMP] = gMap[index[i] & gmask];
rgba[i][BCOMP] = bMap[index[i] & bmask];
rgba[i][ACOMP] = aMap[index[i] & amask];
}
}
void
_mesa_map_ci8_to_rgba8(const GLcontext *ctx, GLuint n, const GLubyte index[],
GLubyte rgba[][4])
{
GLuint rmask = ctx->Pixel.MapItoRsize - 1;
GLuint gmask = ctx->Pixel.MapItoGsize - 1;
GLuint bmask = ctx->Pixel.MapItoBsize - 1;
GLuint amask = ctx->Pixel.MapItoAsize - 1;
const GLubyte *rMap = ctx->Pixel.MapItoR8;
const GLubyte *gMap = ctx->Pixel.MapItoG8;
const GLubyte *bMap = ctx->Pixel.MapItoB8;
const GLubyte *aMap = ctx->Pixel.MapItoA8;
GLuint i;
for (i=0;i<n;i++) {
rgba[i][RCOMP] = rMap[index[i] & rmask];
rgba[i][GCOMP] = gMap[index[i] & gmask];
rgba[i][BCOMP] = bMap[index[i] & bmask];
rgba[i][ACOMP] = aMap[index[i] & amask];
}
}
void
_mesa_scale_and_bias_depth(const GLcontext *ctx, GLuint n,
GLfloat depthValues[])
{
const GLfloat scale = ctx->Pixel.DepthScale;
const GLfloat bias = ctx->Pixel.DepthBias;
GLuint i;
for (i = 0; i < n; i++) {
GLfloat d = depthValues[i] * scale + bias;
depthValues[i] = CLAMP(d, 0.0F, 1.0F);
}
}
static void
update_image_transfer_state(GLcontext *ctx)
{
GLuint mask = 0;
if (ctx->Pixel.RedScale != 1.0F || ctx->Pixel.RedBias != 0.0F ||
ctx->Pixel.GreenScale != 1.0F || ctx->Pixel.GreenBias != 0.0F ||
ctx->Pixel.BlueScale != 1.0F || ctx->Pixel.BlueBias != 0.0F ||
ctx->Pixel.AlphaScale != 1.0F || ctx->Pixel.AlphaBias != 0.0F)
mask |= IMAGE_SCALE_BIAS_BIT;
if (ctx->Pixel.IndexShift || ctx->Pixel.IndexOffset)
mask |= IMAGE_SHIFT_OFFSET_BIT;
if (ctx->Pixel.MapColorFlag)
mask |= IMAGE_MAP_COLOR_BIT;
if (ctx->Pixel.ColorTableEnabled)
mask |= IMAGE_COLOR_TABLE_BIT;
if (ctx->Pixel.Convolution1DEnabled ||
ctx->Pixel.Convolution2DEnabled ||
ctx->Pixel.Separable2DEnabled) {
mask |= IMAGE_CONVOLUTION_BIT;
if (ctx->Pixel.PostConvolutionScale[0] != 1.0F ||
ctx->Pixel.PostConvolutionScale[1] != 1.0F ||
ctx->Pixel.PostConvolutionScale[2] != 1.0F ||
ctx->Pixel.PostConvolutionScale[3] != 1.0F ||
ctx->Pixel.PostConvolutionBias[0] != 0.0F ||
ctx->Pixel.PostConvolutionBias[1] != 0.0F ||
ctx->Pixel.PostConvolutionBias[2] != 0.0F ||
ctx->Pixel.PostConvolutionBias[3] != 0.0F) {
mask |= IMAGE_POST_CONVOLUTION_SCALE_BIAS;
}
}
if (ctx->Pixel.PostConvolutionColorTableEnabled)
mask |= IMAGE_POST_CONVOLUTION_COLOR_TABLE_BIT;
if (ctx->ColorMatrixStack.Top->type != MATRIX_IDENTITY ||
ctx->Pixel.PostColorMatrixScale[0] != 1.0F ||
ctx->Pixel.PostColorMatrixBias[0] != 0.0F ||
ctx->Pixel.PostColorMatrixScale[1] != 1.0F ||
ctx->Pixel.PostColorMatrixBias[1] != 0.0F ||
ctx->Pixel.PostColorMatrixScale[2] != 1.0F ||
ctx->Pixel.PostColorMatrixBias[2] != 0.0F ||
ctx->Pixel.PostColorMatrixScale[3] != 1.0F ||
ctx->Pixel.PostColorMatrixBias[3] != 0.0F)
mask |= IMAGE_COLOR_MATRIX_BIT;
if (ctx->Pixel.PostColorMatrixColorTableEnabled)
mask |= IMAGE_POST_COLOR_MATRIX_COLOR_TABLE_BIT;
if (ctx->Pixel.HistogramEnabled)
mask |= IMAGE_HISTOGRAM_BIT;
if (ctx->Pixel.MinMaxEnabled)
mask |= IMAGE_MIN_MAX_BIT;
ctx->_ImageTransferState = mask;
}
void _mesa_update_pixel( GLcontext *ctx, GLuint new_state )
{
if (new_state & _NEW_COLOR_MATRIX)
_math_matrix_analyse( ctx->ColorMatrixStack.Top );
if (new_state & _IMAGE_NEW_TRANSFER_STATE)
update_image_transfer_state(ctx);
}
void
_mesa_init_pixel( GLcontext *ctx )
{
int i;
ctx->Pixel.RedBias = 0.0;
ctx->Pixel.RedScale = 1.0;
ctx->Pixel.GreenBias = 0.0;
ctx->Pixel.GreenScale = 1.0;
ctx->Pixel.BlueBias = 0.0;
ctx->Pixel.BlueScale = 1.0;
ctx->Pixel.AlphaBias = 0.0;
ctx->Pixel.AlphaScale = 1.0;
ctx->Pixel.DepthBias = 0.0;
ctx->Pixel.DepthScale = 1.0;
ctx->Pixel.IndexOffset = 0;
ctx->Pixel.IndexShift = 0;
ctx->Pixel.ZoomX = 1.0;
ctx->Pixel.ZoomY = 1.0;
ctx->Pixel.MapColorFlag = GL_FALSE;
ctx->Pixel.MapStencilFlag = GL_FALSE;
ctx->Pixel.MapStoSsize = 1;
ctx->Pixel.MapItoIsize = 1;
ctx->Pixel.MapItoRsize = 1;
ctx->Pixel.MapItoGsize = 1;
ctx->Pixel.MapItoBsize = 1;
ctx->Pixel.MapItoAsize = 1;
ctx->Pixel.MapRtoRsize = 1;
ctx->Pixel.MapGtoGsize = 1;
ctx->Pixel.MapBtoBsize = 1;
ctx->Pixel.MapAtoAsize = 1;
ctx->Pixel.MapStoS[0] = 0;
ctx->Pixel.MapItoI[0] = 0.0;
ctx->Pixel.MapItoR[0] = 0.0;
ctx->Pixel.MapItoG[0] = 0.0;
ctx->Pixel.MapItoB[0] = 0.0;
ctx->Pixel.MapItoA[0] = 0.0;
ctx->Pixel.MapItoR8[0] = 0;
ctx->Pixel.MapItoG8[0] = 0;
ctx->Pixel.MapItoB8[0] = 0;
ctx->Pixel.MapItoA8[0] = 0;
ctx->Pixel.MapRtoR[0] = 0.0;
ctx->Pixel.MapGtoG[0] = 0.0;
ctx->Pixel.MapBtoB[0] = 0.0;
ctx->Pixel.MapAtoA[0] = 0.0;
ctx->Pixel.HistogramEnabled = GL_FALSE;
ctx->Pixel.MinMaxEnabled = GL_FALSE;
ASSIGN_4V(ctx->Pixel.PostColorMatrixScale, 1.0, 1.0, 1.0, 1.0);
ASSIGN_4V(ctx->Pixel.PostColorMatrixBias, 0.0, 0.0, 0.0, 0.0);
ASSIGN_4V(ctx->Pixel.ColorTableScale, 1.0, 1.0, 1.0, 1.0);
ASSIGN_4V(ctx->Pixel.ColorTableBias, 0.0, 0.0, 0.0, 0.0);
ASSIGN_4V(ctx->Pixel.PCCTscale, 1.0, 1.0, 1.0, 1.0);
ASSIGN_4V(ctx->Pixel.PCCTbias, 0.0, 0.0, 0.0, 0.0);
ASSIGN_4V(ctx->Pixel.PCMCTscale, 1.0, 1.0, 1.0, 1.0);
ASSIGN_4V(ctx->Pixel.PCMCTbias, 0.0, 0.0, 0.0, 0.0);
ctx->Pixel.ColorTableEnabled = GL_FALSE;
ctx->Pixel.PostConvolutionColorTableEnabled = GL_FALSE;
ctx->Pixel.PostColorMatrixColorTableEnabled = GL_FALSE;
ctx->Pixel.Convolution1DEnabled = GL_FALSE;
ctx->Pixel.Convolution2DEnabled = GL_FALSE;
ctx->Pixel.Separable2DEnabled = GL_FALSE;
for (i = 0; i < 3; i++) {
ASSIGN_4V(ctx->Pixel.ConvolutionBorderColor[i], 0.0, 0.0, 0.0, 0.0);
ctx->Pixel.ConvolutionBorderMode[i] = GL_REDUCE;
ASSIGN_4V(ctx->Pixel.ConvolutionFilterScale[i], 1.0, 1.0, 1.0, 1.0);
ASSIGN_4V(ctx->Pixel.ConvolutionFilterBias[i], 0.0, 0.0, 0.0, 0.0);
}
for (i = 0; i < MAX_CONVOLUTION_WIDTH * MAX_CONVOLUTION_WIDTH * 4; i++) {
ctx->Convolution1D.Filter[i] = 0.0;
ctx->Convolution2D.Filter[i] = 0.0;
ctx->Separable2D.Filter[i] = 0.0;
}
ASSIGN_4V(ctx->Pixel.PostConvolutionScale, 1.0, 1.0, 1.0, 1.0);
ASSIGN_4V(ctx->Pixel.PostConvolutionBias, 0.0, 0.0, 0.0, 0.0);
ASSIGN_4V(ctx->Pixel.TextureColorTableScale, 1.0, 1.0, 1.0, 1.0);
ASSIGN_4V(ctx->Pixel.TextureColorTableBias, 0.0, 0.0, 0.0, 0.0);
ctx->Pack.Alignment = 4;
ctx->Pack.RowLength = 0;
ctx->Pack.ImageHeight = 0;
ctx->Pack.SkipPixels = 0;
ctx->Pack.SkipRows = 0;
ctx->Pack.SkipImages = 0;
ctx->Pack.SwapBytes = GL_FALSE;
ctx->Pack.LsbFirst = GL_FALSE;
ctx->Pack.ClientStorage = GL_FALSE;
ctx->Pack.Invert = GL_FALSE;
#if FEATURE_EXT_pixel_buffer_object
ctx->Pack.BufferObj = ctx->Array.NullBufferObj;
#endif
ctx->Unpack.Alignment = 4;
ctx->Unpack.RowLength = 0;
ctx->Unpack.ImageHeight = 0;
ctx->Unpack.SkipPixels = 0;
ctx->Unpack.SkipRows = 0;
ctx->Unpack.SkipImages = 0;
ctx->Unpack.SwapBytes = GL_FALSE;
ctx->Unpack.LsbFirst = GL_FALSE;
ctx->Unpack.ClientStorage = GL_FALSE;
ctx->Unpack.Invert = GL_FALSE;
#if FEATURE_EXT_pixel_buffer_object
ctx->Unpack.BufferObj = ctx->Array.NullBufferObj;
#endif
ctx->DefaultPacking.Alignment = 1;
ctx->DefaultPacking.RowLength = 0;
ctx->DefaultPacking.SkipPixels = 0;
ctx->DefaultPacking.SkipRows = 0;
ctx->DefaultPacking.ImageHeight = 0;
ctx->DefaultPacking.SkipImages = 0;
ctx->DefaultPacking.SwapBytes = GL_FALSE;
ctx->DefaultPacking.LsbFirst = GL_FALSE;
ctx->DefaultPacking.ClientStorage = GL_FALSE;
ctx->DefaultPacking.Invert = GL_FALSE;
#if FEATURE_EXT_pixel_buffer_object
ctx->DefaultPacking.BufferObj = ctx->Array.NullBufferObj;
#endif
if (ctx->Visual.doubleBufferMode) {
ctx->Pixel.ReadBuffer = GL_BACK;
}
else {
ctx->Pixel.ReadBuffer = GL_FRONT;
}
ctx->_ImageTransferState = 0;
}