/*
* Mesa 3-D graphics library
- * Version: 6.1
+ * Version: 6.3
*
* Copyright (C) 1999-2004 Brian Paul All Rights Reserved.
*
*/
#include "glheader.h"
-#include "imports.h"
-#include "image.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_PixelMapfv( GLenum map, GLsizei mapsize, const GLfloat *values )
+/**
+ * Helper routine used by the other _mesa_PixelMap() functions.
+ */
+static void
+pixelmap(GLcontext *ctx, GLenum map, GLsizei mapsize, const GLfloat *values)
{
GLint i;
- 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) {
- /* test that mapsize is a power of two */
- if (_mesa_bitcount((GLuint) mapsize) != 1) {
- _mesa_error( ctx, GL_INVALID_VALUE, "glPixelMapfv(mapsize)" );
- return;
- }
- }
-
- FLUSH_VERTICES(ctx, _NEW_PIXEL);
-
switch (map) {
case GL_PIXEL_MAP_S_TO_S:
ctx->Pixel.MapStoSsize = mapsize;
- for (i=0;i<mapsize;i++) {
+ for (i = 0; i < mapsize; i++) {
ctx->Pixel.MapStoS[i] = (GLint) values[i];
}
break;
case GL_PIXEL_MAP_I_TO_I:
ctx->Pixel.MapItoIsize = mapsize;
- for (i=0;i<mapsize;i++) {
+ for (i = 0; i < mapsize; i++) {
ctx->Pixel.MapItoI[i] = (GLint) values[i];
}
break;
case GL_PIXEL_MAP_I_TO_R:
ctx->Pixel.MapItoRsize = mapsize;
- for (i=0;i<mapsize;i++) {
+ 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++) {
+ 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++) {
+ 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++) {
+ 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++) {
+ 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++) {
+ 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++) {
+ 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++) {
+ 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, "glPixelMapfv(map)" );
+ _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);
+
+ /* XXX someday, test against ctx->Const.MaxPixelMapTableSize */
+ 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) {
+ /* test that mapsize is a power of two */
+ 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) {
+ /* unpack pixelmap from PBO */
+ GLubyte *buf;
+ /* Note, need to use DefaultPacking and Unpack's buffer object */
+ ctx->DefaultPacking.BufferObj = ctx->Unpack.BufferObj;
+ if (!_mesa_validate_pbo_access(&ctx->DefaultPacking, mapsize, 1, 1,
+ GL_INTENSITY, GL_FLOAT, values)) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glPixelMapfv(invalid PBO access)");
+ return;
+ }
+ /* restore */
+ 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) {
+ /* buffer is already mapped - that's an error */
+ _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 )
{
- const GLint n = MIN2(mapsize, MAX_PIXEL_MAP_TABLE);
GLfloat fvalues[MAX_PIXEL_MAP_TABLE];
- GLint i;
- if (map==GL_PIXEL_MAP_I_TO_I || map==GL_PIXEL_MAP_S_TO_S) {
- for (i=0;i<n;i++) {
+ 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) {
+ /* test that mapsize is a power of two */
+ 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) {
+ /* unpack pixelmap from PBO */
+ GLubyte *buf;
+ /* Note, need to use DefaultPacking and Unpack's buffer object */
+ ctx->DefaultPacking.BufferObj = ctx->Unpack.BufferObj;
+ if (!_mesa_validate_pbo_access(&ctx->DefaultPacking, mapsize, 1, 1,
+ GL_INTENSITY, GL_UNSIGNED_INT, values)) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glPixelMapuiv(invalid PBO access)");
+ return;
+ }
+ /* restore */
+ 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) {
+ /* buffer is already mapped - that's an error */
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glPixelMapuiv(PBO is mapped)");
+ return;
+ }
+ values = (const GLuint *) ADD_POINTERS(buf, values);
+ }
+ else if (!values) {
+ return;
+ }
+
+ /* convert to floats */
+ 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 {
- for (i=0;i<n;i++) {
+ GLint i;
+ for (i = 0; i < mapsize; i++) {
fvalues[i] = UINT_TO_FLOAT( values[i] );
}
}
- _mesa_PixelMapfv(map, mapsize, fvalues);
+
+ 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 )
{
- const GLint n = MIN2(mapsize, MAX_PIXEL_MAP_TABLE);
GLfloat fvalues[MAX_PIXEL_MAP_TABLE];
- GLint i;
- if (map==GL_PIXEL_MAP_I_TO_I || map==GL_PIXEL_MAP_S_TO_S) {
- for (i=0;i<n;i++) {
+ 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) {
+ /* test that mapsize is a power of two */
+ 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) {
+ /* unpack pixelmap from PBO */
+ GLubyte *buf;
+ /* Note, need to use DefaultPacking and Unpack's buffer object */
+ ctx->DefaultPacking.BufferObj = ctx->Unpack.BufferObj;
+ if (!_mesa_validate_pbo_access(&ctx->DefaultPacking, mapsize, 1, 1,
+ GL_INTENSITY, GL_UNSIGNED_SHORT,
+ values)) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glPixelMapusv(invalid PBO access)");
+ return;
+ }
+ /* restore */
+ 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) {
+ /* buffer is already mapped - that's an error */
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glPixelMapusv(PBO is mapped)");
+ return;
+ }
+ values = (const GLushort *) ADD_POINTERS(buf, values);
+ }
+ else if (!values) {
+ return;
+ }
+
+ /* convert to floats */
+ 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 {
- for (i=0;i<n;i++) {
+ GLint i;
+ for (i = 0; i < mapsize; i++) {
fvalues[i] = USHORT_TO_FLOAT( values[i] );
}
}
- _mesa_PixelMapfv(map, mapsize, fvalues);
+
+ if (ctx->Unpack.BufferObj->Name) {
+ ctx->Driver.UnmapBuffer(ctx, GL_PIXEL_UNPACK_BUFFER_EXT,
+ 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->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);
- GLint i;
+ GLuint mapsize, i;
ASSERT_OUTSIDE_BEGIN_END(ctx);
+ mapsize = get_map_size(ctx, map);
+
+ if (ctx->Pack.BufferObj->Name) {
+ /* pack pixelmap into PBO */
+ GLubyte *buf;
+ /* Note, need to use DefaultPacking and Pack's buffer object */
+ ctx->DefaultPacking.BufferObj = ctx->Pack.BufferObj;
+ if (!_mesa_validate_pbo_access(&ctx->DefaultPacking, mapsize, 1, 1,
+ GL_INTENSITY, GL_FLOAT, values)) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glGetPixelMapfv(invalid PBO access)");
+ return;
+ }
+ /* restore */
+ 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) {
+ /* buffer is already mapped - that's an error */
+ _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:
- for (i=0;i<ctx->Pixel.MapItoIsize;i++) {
+ for (i = 0; i < mapsize; i++) {
values[i] = (GLfloat) ctx->Pixel.MapItoI[i];
}
break;
case GL_PIXEL_MAP_S_TO_S:
- for (i=0;i<ctx->Pixel.MapStoSsize;i++) {
+ 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,ctx->Pixel.MapItoRsize*sizeof(GLfloat));
+ MEMCPY(values, ctx->Pixel.MapItoR, mapsize * sizeof(GLfloat));
break;
case GL_PIXEL_MAP_I_TO_G:
- MEMCPY(values,ctx->Pixel.MapItoG,ctx->Pixel.MapItoGsize*sizeof(GLfloat));
+ MEMCPY(values, ctx->Pixel.MapItoG, mapsize * sizeof(GLfloat));
break;
case GL_PIXEL_MAP_I_TO_B:
- MEMCPY(values,ctx->Pixel.MapItoB,ctx->Pixel.MapItoBsize*sizeof(GLfloat));
+ MEMCPY(values, ctx->Pixel.MapItoB, mapsize * sizeof(GLfloat));
break;
case GL_PIXEL_MAP_I_TO_A:
- MEMCPY(values,ctx->Pixel.MapItoA,ctx->Pixel.MapItoAsize*sizeof(GLfloat));
+ MEMCPY(values, ctx->Pixel.MapItoA, mapsize * sizeof(GLfloat));
break;
case GL_PIXEL_MAP_R_TO_R:
- MEMCPY(values,ctx->Pixel.MapRtoR,ctx->Pixel.MapRtoRsize*sizeof(GLfloat));
+ MEMCPY(values, ctx->Pixel.MapRtoR, mapsize * sizeof(GLfloat));
break;
case GL_PIXEL_MAP_G_TO_G:
- MEMCPY(values,ctx->Pixel.MapGtoG,ctx->Pixel.MapGtoGsize*sizeof(GLfloat));
+ MEMCPY(values, ctx->Pixel.MapGtoG, mapsize * sizeof(GLfloat));
break;
case GL_PIXEL_MAP_B_TO_B:
- MEMCPY(values,ctx->Pixel.MapBtoB,ctx->Pixel.MapBtoBsize*sizeof(GLfloat));
+ MEMCPY(values, ctx->Pixel.MapBtoB, mapsize * sizeof(GLfloat));
break;
case GL_PIXEL_MAP_A_TO_A:
- MEMCPY(values,ctx->Pixel.MapAtoA,ctx->Pixel.MapAtoAsize*sizeof(GLfloat));
+ 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);
+ }
}
_mesa_GetPixelMapuiv( GLenum map, GLuint *values )
{
GET_CURRENT_CONTEXT(ctx);
- GLint i;
+ GLint mapsize, i;
ASSERT_OUTSIDE_BEGIN_END(ctx);
+ mapsize = get_map_size(ctx, map);
+
+ if (ctx->Pack.BufferObj->Name) {
+ /* pack pixelmap into PBO */
+ GLubyte *buf;
+ /* Note, need to use DefaultPacking and Pack's buffer object */
+ ctx->DefaultPacking.BufferObj = ctx->Pack.BufferObj;
+ if (!_mesa_validate_pbo_access(&ctx->DefaultPacking, mapsize, 1, 1,
+ GL_INTENSITY, GL_UNSIGNED_INT, values)) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glGetPixelMapuiv(invalid PBO access)");
+ return;
+ }
+ /* restore */
+ 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) {
+ /* buffer is already mapped - that's an error */
+ _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:
- MEMCPY(values, ctx->Pixel.MapItoI, ctx->Pixel.MapItoIsize*sizeof(GLint));
+ MEMCPY(values, ctx->Pixel.MapItoI, mapsize * sizeof(GLint));
break;
case GL_PIXEL_MAP_S_TO_S:
- MEMCPY(values, ctx->Pixel.MapStoS, ctx->Pixel.MapStoSsize*sizeof(GLint));
+ MEMCPY(values, ctx->Pixel.MapStoS, mapsize * sizeof(GLint));
break;
case GL_PIXEL_MAP_I_TO_R:
- for (i=0;i<ctx->Pixel.MapItoRsize;i++) {
+ 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<ctx->Pixel.MapItoGsize;i++) {
+ 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<ctx->Pixel.MapItoBsize;i++) {
+ 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<ctx->Pixel.MapItoAsize;i++) {
+ 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<ctx->Pixel.MapRtoRsize;i++) {
+ 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<ctx->Pixel.MapGtoGsize;i++) {
+ 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<ctx->Pixel.MapBtoBsize;i++) {
+ 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<ctx->Pixel.MapAtoAsize;i++) {
+ 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);
+ }
}
_mesa_GetPixelMapusv( GLenum map, GLushort *values )
{
GET_CURRENT_CONTEXT(ctx);
- GLint i;
+ GLint mapsize, i;
ASSERT_OUTSIDE_BEGIN_END(ctx);
+ mapsize = get_map_size(ctx, map);
+
+ if (ctx->Pack.BufferObj->Name) {
+ /* pack pixelmap into PBO */
+ GLubyte *buf;
+ /* Note, need to use DefaultPacking and Pack's buffer object */
+ ctx->DefaultPacking.BufferObj = ctx->Pack.BufferObj;
+ if (!_mesa_validate_pbo_access(&ctx->DefaultPacking, mapsize, 1, 1,
+ GL_INTENSITY, GL_UNSIGNED_SHORT,
+ values)) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glGetPixelMapusv(invalid PBO access)");
+ return;
+ }
+ /* restore */
+ 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) {
+ /* buffer is already mapped - that's an error */
+ _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<ctx->Pixel.MapItoIsize;i++) {
+ for (i = 0; i < mapsize; i++) {
values[i] = (GLushort) ctx->Pixel.MapItoI[i];
}
break;
case GL_PIXEL_MAP_S_TO_S:
- for (i=0;i<ctx->Pixel.MapStoSsize;i++) {
+ for (i = 0; i < mapsize; i++) {
values[i] = (GLushort) ctx->Pixel.MapStoS[i];
}
break;
case GL_PIXEL_MAP_I_TO_R:
- for (i=0;i<ctx->Pixel.MapItoRsize;i++) {
+ for (i = 0; i < mapsize; i++) {
values[i] = FLOAT_TO_USHORT( ctx->Pixel.MapItoR[i] );
}
break;
case GL_PIXEL_MAP_I_TO_G:
- for (i=0;i<ctx->Pixel.MapItoGsize;i++) {
+ for (i = 0; i < mapsize; i++) {
values[i] = FLOAT_TO_USHORT( ctx->Pixel.MapItoG[i] );
}
break;
case GL_PIXEL_MAP_I_TO_B:
- for (i=0;i<ctx->Pixel.MapItoBsize;i++) {
+ for (i = 0; i < mapsize; i++) {
values[i] = FLOAT_TO_USHORT( ctx->Pixel.MapItoB[i] );
}
break;
case GL_PIXEL_MAP_I_TO_A:
- for (i=0;i<ctx->Pixel.MapItoAsize;i++) {
+ for (i = 0; i < mapsize; i++) {
values[i] = FLOAT_TO_USHORT( ctx->Pixel.MapItoA[i] );
}
break;
case GL_PIXEL_MAP_R_TO_R:
- for (i=0;i<ctx->Pixel.MapRtoRsize;i++) {
+ for (i = 0; i < mapsize; i++) {
values[i] = FLOAT_TO_USHORT( ctx->Pixel.MapRtoR[i] );
}
break;
case GL_PIXEL_MAP_G_TO_G:
- for (i=0;i<ctx->Pixel.MapGtoGsize;i++) {
+ for (i = 0; i < mapsize; i++) {
values[i] = FLOAT_TO_USHORT( ctx->Pixel.MapGtoG[i] );
}
break;
case GL_PIXEL_MAP_B_TO_B:
- for (i=0;i<ctx->Pixel.MapBtoBsize;i++) {
+ for (i = 0; i < mapsize; i++) {
values[i] = FLOAT_TO_USHORT( ctx->Pixel.MapBtoB[i] );
}
break;
case GL_PIXEL_MAP_A_TO_A:
- for (i=0;i<ctx->Pixel.MapAtoAsize;i++) {
+ for (i = 0; i < mapsize; i++) {
values[i] = FLOAT_TO_USHORT( 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);
+ }
}
_mesa_PixelTransferf( pname, (GLfloat) param );
}
+
+
/**********************************************************************/
/***** Pixel processing functions ******/
/**********************************************************************/
-
/*
* Apply scale and bias factors to an array of RGBA pixels.
*/
void
-_mesa_scale_and_bias_rgba(const GLcontext *ctx, GLuint n, GLfloat rgba[][4],
+_mesa_scale_and_bias_rgba(GLcontext *ctx, GLuint n, GLfloat rgba[][4],
GLfloat rScale, GLfloat gScale,
GLfloat bScale, GLfloat aScale,
GLfloat rBias, GLfloat gBias,
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