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-rw-r--r--mesalib/progs/util/glstate.c502
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diff --git a/mesalib/progs/util/glstate.c b/mesalib/progs/util/glstate.c
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+++ b/mesalib/progs/util/glstate.c
@@ -0,0 +1,502 @@
+
+/*
+ * Print GL state information (for debugging)
+ * Copyright (C) 1998 Brian Paul
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the Free
+ * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+
+/*
+ * Revision 1.1 1999/08/19 00:55:42 jtg
+ * Initial revision
+ *
+ * Revision 1.4 1999/06/19 01:36:43 brianp
+ * more features added
+ *
+ * Revision 1.3 1999/02/24 05:16:20 brianp
+ * added still more records to EnumTable
+ *
+ * Revision 1.2 1998/11/24 03:47:54 brianp
+ * added more records to EnumTable
+ *
+ * Revision 1.1 1998/11/24 03:41:16 brianp
+ * Initial revision
+ *
+ */
+
+
+
+#include <assert.h>
+#include <GL/gl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include "glstate.h"
+
+
+#define FLOAT 1
+#define INT 2
+#define DOUBLE 3
+#define BOOLEAN 4
+#define ENUM 5
+#define VOID 6
+#define LAST_TOKEN ~0
+
+
+struct EnumRecord {
+ GLenum enumerator; /* GLenum constant */
+ const char *string; /* string name */
+ int getType; /* INT, FLOAT, DOUBLE, BOOLEAN, ENUM, or VOID */
+ int getCount; /* number of values returned by the glGet*v() call */
+};
+
+
+/* XXX Lots more records to add here! Help, anyone? */
+
+static struct EnumRecord EnumTable[] = {
+ { GL_ACCUM_RED_BITS, "GL_ACCUM_RED_BITS", INT, 1 },
+ { GL_ACCUM_GREEN_BITS, "GL_ACCUM_GREEN_BITS", INT, 1 },
+ { GL_ACCUM_BLUE_BITS, "GL_ACCUM_BLUE_BITS", INT, 1 },
+ { GL_ACCUM_ALPHA_BITS, "GL_ACCUM_ALPHA_BITS", INT, 1 },
+ { GL_ACCUM_CLEAR_VALUE, "GL_ACCUM_CLEAR_VALUE", FLOAT, 4 },
+ { GL_ALPHA_BIAS, "GL_ALPHA_BIAS", FLOAT, 1 },
+ { GL_ALPHA_BITS, "GL_ALPHA_BITS", INT, 1 },
+ { GL_ALPHA_SCALE, "GL_ALPHA_SCALE", FLOAT, 1 },
+ { GL_ALPHA_TEST, "GL_ALPHA_TEST", BOOLEAN, 1 },
+ { GL_ALPHA_TEST_FUNC, "GL_ALPHA_TEST_FUNC", ENUM, 1 },
+ { GL_ALWAYS, "GL_ALWAYS", ENUM, 0 },
+ { GL_ALPHA_TEST_REF, "GL_ALPHA_TEST_REF", FLOAT, 1 },
+ { GL_ATTRIB_STACK_DEPTH, "GL_ATTRIB_STACK_DEPTH", INT, 1 },
+ { GL_AUTO_NORMAL, "GL_AUTO_NORMAL", BOOLEAN, 1 },
+ { GL_AUX_BUFFERS, "GL_AUX_BUFFERS", INT, 1 },
+ { GL_BLEND, "GL_BLEND", BOOLEAN, 1 },
+ { GL_BLEND_DST, "GL_BLEND_DST", ENUM, 1 },
+ { GL_BLEND_SRC, "GL_BLEND_SRC", ENUM, 1 },
+ { GL_BLUE_BIAS, "GL_BLUE_BIAS", FLOAT, 1 },
+ { GL_BLUE_BITS, "GL_BLUE_BITS", INT, 1 },
+ { GL_BLUE_SCALE, "GL_BLUE_SCALE", FLOAT, 1 },
+
+ { GL_CLAMP_TO_EDGE, "GL_CLAMP_TO_EDGE", ENUM, 0 },
+ { GL_CLEAR, "GL_CLEAR", ENUM, 0 },
+ { GL_CLIENT_ATTRIB_STACK_DEPTH, "GL_CLIENT_ATTRIB_STACK_DEPTH", INT, 1 },
+ { GL_CLIP_PLANE0, "GL_CLIP_PLANE0", BOOLEAN, 1 },
+ { GL_CLIP_PLANE1, "GL_CLIP_PLANE1", BOOLEAN, 1 },
+ { GL_CLIP_PLANE2, "GL_CLIP_PLANE2", BOOLEAN, 1 },
+ { GL_CLIP_PLANE3, "GL_CLIP_PLANE3", BOOLEAN, 1 },
+ { GL_CLIP_PLANE4, "GL_CLIP_PLANE4", BOOLEAN, 1 },
+ { GL_CLIP_PLANE5, "GL_CLIP_PLANE5", BOOLEAN, 1 },
+ { GL_COEFF, "GL_COEEF", ENUM, 0 },
+ { GL_COLOR, "GL_COLOR", ENUM, 0 },
+ { GL_COLOR_BUFFER_BIT, "GL_COLOR_BUFFER_BIT", ENUM, 0 },
+ { GL_COLOR_CLEAR_VALUE, "GL_COLOR_CLEAR_VALUE", FLOAT, 4 },
+ { GL_COLOR_INDEX, "GL_COLOR_INDEX", ENUM, 0 },
+ { GL_COLOR_MATERIAL, "GL_COLOR_MATERIAL", BOOLEAN, 1 },
+ { GL_COLOR_MATERIAL_FACE, "GL_COLOR_MATERIAL_FACE", ENUM, 1 },
+ { GL_COLOR_MATERIAL_PARAMETER, "GL_COLOR_MATERIAL_PARAMETER", ENUM, 1 },
+ { GL_COLOR_WRITEMASK, "GL_COLOR_WRITEMASK", BOOLEAN, 4 },
+ { GL_COMPILE, "GL_COMPILE", ENUM, 0 },
+ { GL_COMPILE_AND_EXECUTE, "GL_COMPILE_AND_EXECUTE", ENUM, 0 },
+ { GL_COPY, "GL_COPY", ENUM, 0 },
+ { GL_COPY_INVERTED, "GL_COPY_INVERTED", ENUM, 0 },
+ { GL_COPY_PIXEL_TOKEN, "GL_COPY_PIXEL_TOKEN", ENUM, 0 },
+ { GL_CULL_FACE, "GL_CULL_FACE", BOOLEAN, 1 },
+ { GL_CULL_FACE_MODE, "GL_CULL_FACE_MODE", ENUM, 1 },
+ { GL_CURRENT_BIT, "GL_CURRENT_BIT", ENUM, 0 },
+ { GL_CURRENT_COLOR, "GL_CURRENT_COLOR", FLOAT, 4 },
+ { GL_CURRENT_INDEX, "GL_CURRENT_INDEX", INT, 1 },
+ { GL_CURRENT_NORMAL, "GL_CURRENT_NORMAL", FLOAT, 3 },
+ { GL_CURRENT_RASTER_COLOR, "GL_CURRENT_RASTER_COLOR", FLOAT, 4 },
+ { GL_CURRENT_RASTER_DISTANCE, "GL_CURRENT_RASTER_DISTANCE", FLOAT, 1 },
+ { GL_CURRENT_RASTER_INDEX, "GL_CURRENT_RASTER_INDEX", INT, 1 },
+ { GL_CURRENT_RASTER_POSITION, "GL_CURRENT_RASTER_POSITION", FLOAT, 4 },
+ { GL_CURRENT_RASTER_TEXTURE_COORDS, "GL_CURRENT_RASTER_TEXTURE_COORDS", FLOAT, 4 },
+ { GL_CURRENT_RASTER_POSITION_VALID, "GL_CURRENT_RASTER_POSITION_VALID", BOOLEAN, 1 },
+ { GL_CURRENT_TEXTURE_COORDS, "GL_CURRENT_TEXTURE_COORDS", FLOAT, 4 },
+ { GL_CW, "GL_CW", ENUM, 0 },
+ { GL_CCW, "GL_CCW", ENUM, 0 },
+
+ { GL_DECAL, "GL_DECAL", ENUM, 0 },
+ { GL_DECR, "GL_DECR", ENUM, 0 },
+ { GL_DEPTH, "GL_DEPTH", ENUM, 0 },
+ { GL_DEPTH_BIAS, "GL_DEPTH_BIAS", FLOAT, 1 },
+ { GL_DEPTH_BITS, "GL_DEPTH_BITS", INT, 1 },
+ { GL_DEPTH_BUFFER_BIT, "GL_DEPTH_BUFFER_BIT", ENUM, 0 },
+ { GL_DEPTH_CLEAR_VALUE, "GL_DEPTH_CLEAR_VALUE", FLOAT, 1 },
+ { GL_DEPTH_COMPONENT, "GL_DEPTH_COMPONENT", ENUM, 0 },
+ { GL_DEPTH_FUNC, "GL_DEPTH_FUNC", ENUM, 1 },
+ { GL_DEPTH_RANGE, "GL_DEPTH_RANGE", FLOAT, 2 },
+ { GL_DEPTH_SCALE, "GL_DEPTH_SCALE", FLOAT, 1 },
+ { GL_DEPTH_TEST, "GL_DEPTH_TEST", ENUM, 1 },
+ { GL_DEPTH_WRITEMASK, "GL_DEPTH_WRITEMASK", BOOLEAN, 1 },
+ { GL_DIFFUSE, "GL_DIFFUSE", ENUM, 0 }, /*XXX*/
+ { GL_DITHER, "GL_DITHER", BOOLEAN, 1 },
+ { GL_DOMAIN, "GL_DOMAIN", ENUM, 0 },
+ { GL_DONT_CARE, "GL_DONT_CARE", ENUM, 0 },
+ { GL_DOUBLE, "GL_DOUBLE", ENUM, 0 },
+ { GL_DOUBLEBUFFER, "GL_DOUBLEBUFFER", BOOLEAN, 1},
+ { GL_DRAW_BUFFER, "GL_DRAW_BUFFER", ENUM, 1 },
+ { GL_DRAW_PIXEL_TOKEN, "GL_DRAW_PIXEL_TOKEN", ENUM, 0 },
+ { GL_DST_ALPHA, "GL_DST_ALPHA", ENUM, 0 },
+ { GL_DST_COLOR, "GL_DST_COLOR", ENUM, 0 },
+
+ { GL_EDGE_FLAG, "GL_EDGE_FLAG", BOOLEAN, 1 },
+ /* XXX GL_EDGE_FLAG_ARRAY_* */
+ { GL_EMISSION, "GL_EMISSION", ENUM, 0 }, /* XXX */
+ { GL_ENABLE_BIT, "GL_ENABLE_BIT", ENUM, 0 },
+ { GL_EQUAL, "GL_EQUAL", ENUM, 0 },
+ { GL_EQUIV, "GL_EQUIV", ENUM, 0 },
+ { GL_EVAL_BIT, "GL_EVAL_BIT", ENUM, 0 },
+ { GL_EXP, "GL_EXP", ENUM, 0 },
+ { GL_EXP2, "GL_EXP2", ENUM, 0 },
+ { GL_EXTENSIONS, "GL_EXTENSIONS", ENUM, 0 },
+ { GL_EYE_LINEAR, "GL_EYE_LINEAR", ENUM, 0 },
+ { GL_EYE_PLANE, "GL_EYE_PLANE", ENUM, 0 },
+
+ { GL_FALSE, "GL_FALSE", ENUM, 0 },
+ { GL_FASTEST, "GL_FASTEST", ENUM, 0 },
+ { GL_FEEDBACK, "GL_FEEDBACK", ENUM, 0 },
+ { GL_FEEDBACK_BUFFER_POINTER, "GL_FEEDBACK_BUFFER_POINTER", VOID, 0 },
+ { GL_FEEDBACK_BUFFER_SIZE, "GL_FEEDBACK_BUFFER_SIZE", INT, 1 },
+ { GL_FEEDBACK_BUFFER_TYPE, "GL_FEEDBACK_BUFFER_TYPE", INT, 1 },
+ { GL_FILL, "GL_FILL", ENUM, 0 },
+ { GL_FLAT, "GL_FLAT", ENUM, 0 },
+ { GL_FLOAT, "GL_FLOAT", ENUM, 0 },
+ { GL_FOG, "GL_FOG", BOOLEAN, 1 },
+ { GL_FOG_BIT, "GL_FOG_BIT", ENUM, 0 },
+ { GL_FOG_COLOR, "GL_FOG_COLOR", FLOAT, 4 },
+ { GL_FOG_DENSITY, "GL_FOG_DENSITY", FLOAT, 1 },
+ { GL_FOG_END, "GL_FOG_END", FLOAT, 1 },
+ { GL_FOG_HINT, "GL_FOG_HINT", ENUM, 1 },
+ { GL_FOG_INDEX, "GL_FOG_INDEX", INT, 1 },
+ { GL_FOG_MODE, "GL_FOG_MODE", ENUM, 1 },
+ { GL_FOG_START, "GL_FOG_START", FLOAT, 1 },
+ { GL_FRONT, "GL_FRONT", ENUM, 0 },
+ { GL_FRONT_AND_BACK, "GL_FRONT_AND_BACK", ENUM, 0 },
+ { GL_FRONT_FACE, "GL_FRONT_FACE", ENUM, 1 },
+ { GL_FRONT_LEFT, "GL_FRONT_LEFT", ENUM, 0 },
+ { GL_FRONT_RIGHT, "GL_FRONT_RIGHT", ENUM, 0 },
+
+ { GL_GEQUAL, "GL_GEQUAL", ENUM, 0 },
+ { GL_GREATER, "GL_GREATER", ENUM, 0 },
+ { GL_GREEN, "GL_GREEN", ENUM, 0 },
+ { GL_GREEN_BIAS, "GL_GREEN_BIAS", FLOAT, 1 },
+ { GL_GREEN_BITS, "GL_GREEN_BITS", INT, 1 },
+ { GL_GREEN_SCALE, "GL_GREEN_SCALE", FLOAT, 1 },
+
+
+
+ { GL_LESS, "GL_LESS", ENUM, 0 },
+ { GL_LEQUAL, "GL_LEQUAL", ENUM, 0 },
+ { GL_LIGHTING, "GL_LIGHTING", BOOLEAN, 1 },
+ { GL_LINE_SMOOTH, "GL_LINE_SMOOTH", BOOLEAN, 1 },
+ { GL_LINE_STIPPLE, "GL_LINE_STIPPLE", BOOLEAN, 1 },
+ { GL_LINE_STIPPLE_PATTERN, "GL_LINE_STIPPLE_PATTERN", INT, 1 },
+ { GL_LINE_STIPPLE_REPEAT, "GL_LINE_STIPPLE_REPEAT", INT, 1 },
+ { GL_LINE_WIDTH, "GL_LINE_WIDTH", FLOAT, 1 },
+
+ { GL_MODELVIEW_MATRIX, "GL_MODELVIEW_MATRIX", DOUBLE, 16 },
+
+ { GL_NEVER, "GL_NEVER", ENUM, 0 },
+ { GL_NOTEQUAL, "GL_NOTEQUAL", ENUM, 0 },
+
+ { GL_PROJECTION_MATRIX, "GL_PROJECTION_MATRIX", FLOAT, 16 },
+
+ { GL_PACK_SWAP_BYTES, "GL_PACK_SWAP_BYTES", INT, 1 },
+ { GL_PACK_LSB_FIRST, "GL_PACK_LSB_FIRST", INT, 1 },
+ { GL_PACK_ROW_LENGTH, "GL_PACK_ROW_LENGTH", INT, 1 },
+ { GL_PACK_SKIP_PIXELS, "GL_PACK_SKIP_PIXELS", INT, 1 },
+ { GL_PACK_SKIP_ROWS, "GL_PACK_SKIP_ROWS", INT, 1 },
+ { GL_PACK_ALIGNMENT, "GL_PACK_ALIGNMENT", INT, 1 },
+
+ { GL_TRUE, "GL_TRUE", ENUM, 0 },
+
+ { GL_UNPACK_SWAP_BYTES, "GL_UNPACK_SWAP_BYTES", INT, 1 },
+ { GL_UNPACK_LSB_FIRST, "GL_UNPACK_LSB_FIRST", INT, 1 },
+ { GL_UNPACK_ROW_LENGTH, "GL_UNPACK_ROW_LENGTH", INT, 1 },
+ { GL_UNPACK_SKIP_PIXELS, "GL_UNPACK_SKIP_PIXELS", INT, 1 },
+ { GL_UNPACK_SKIP_ROWS, "GL_UNPACK_SKIP_ROWS", INT, 1 },
+ { GL_UNPACK_ALIGNMENT, "GL_UNPACK_ALIGNMENT", INT, 1 },
+
+ { GL_VIEWPORT, "GL_VIEWPORT", INT, 4 },
+
+
+ /*
+ * Extensions
+ */
+
+#if defined(GL_EXT_blend_minmax)
+ { GL_BLEND_EQUATION_EXT, "GL_BLEND_EQUATION_EXT", ENUM, 1 },
+#endif
+#if defined(GL_EXT_blend_color)
+ { GL_BLEND_COLOR_EXT, "GL_BLEND_COLOR_EXT", FLOAT, 4 },
+#endif
+#if defined(GL_EXT_point_parameters)
+ { GL_DISTANCE_ATTENUATION_EXT, "GL_DISTANCE_ATTENUATION_EXT", FLOAT, 1 },
+#endif
+#if defined(GL_INGR_blend_func_separate)
+ { GL_BLEND_SRC_RGB_INGR, "GL_BLEND_SRC_RGB_INGR", ENUM, 1 },
+ { GL_BLEND_DST_RGB_INGR, "GL_BLEND_DST_RGB_INGR", ENUM, 1 },
+ { GL_BLEND_SRC_ALPHA_INGR, "GL_BLEND_SRC_ALPHA_INGR", ENUM, 1 },
+ { GL_BLEND_DST_ALPHA_INGR, "GL_BLEND_DST_ALPHA_INGR", ENUM, 1 },
+#endif
+
+
+ { LAST_TOKEN, "", 0, 0 }
+};
+
+
+static const struct EnumRecord *FindRecord( GLenum var )
+{
+ int i;
+ for (i = 0; EnumTable[i].enumerator != LAST_TOKEN; i++) {
+ if (EnumTable[i].enumerator == var) {
+ return &EnumTable[i];
+ }
+ }
+ return NULL;
+}
+
+
+
+/*
+ * Return the string label for the given enum.
+ */
+const char *GetEnumString( GLenum var )
+{
+ const struct EnumRecord *rec = FindRecord(var);
+ if (rec)
+ return rec->string;
+ else
+ return NULL;
+}
+
+
+
+/*
+ * Print current value of the given state variable.
+ */
+void PrintState( int indent, GLenum var )
+{
+ const struct EnumRecord *rec = FindRecord(var);
+
+ while (indent-- > 0)
+ putchar(' ');
+
+ if (rec) {
+ if (rec->getCount <= 0) {
+ assert(rec->getType == ENUM);
+ printf("%s is not a state variable\n", rec->string);
+ }
+ else {
+ switch (rec->getType) {
+ case INT:
+ {
+ GLint values[100];
+ int i;
+ glGetIntegerv(rec->enumerator, values);
+ printf("%s = ", rec->string);
+ for (i = 0; i < rec->getCount; i++)
+ printf("%d ", values[i]);
+ printf("\n");
+ }
+ break;
+ case FLOAT:
+ {
+ GLfloat values[100];
+ int i;
+ glGetFloatv(rec->enumerator, values);
+ printf("%s = ", rec->string);
+ for (i = 0; i < rec->getCount; i++)
+ printf("%f ", values[i]);
+ printf("\n");
+ }
+ break;
+ case DOUBLE:
+ {
+ GLdouble values[100];
+ int i;
+ glGetDoublev(rec->enumerator, values);
+ printf("%s = ", rec->string);
+ for (i = 0; i < rec->getCount; i++)
+ printf("%f ", (float) values[i]);
+ printf("\n");
+ }
+ break;
+ case BOOLEAN:
+ {
+ GLboolean values[100];
+ int i;
+ glGetBooleanv(rec->enumerator, values);
+ printf("%s = ", rec->string);
+ for (i = 0; i < rec->getCount; i++)
+ printf("%s ", values[i] ? "GL_TRUE" : "GL_FALSE");
+ printf("\n");
+ }
+ break;
+ case ENUM:
+ {
+ GLint values[100];
+ int i;
+ glGetIntegerv(rec->enumerator, values);
+ printf("%s = ", rec->string);
+ for (i = 0; i < rec->getCount; i++) {
+ const char *str = GetEnumString((GLenum) values[i]);
+ if (str)
+ printf("%s ", str);
+ else
+ printf("??? ");
+ }
+ printf("\n");
+ }
+ break;
+ case VOID:
+ {
+ GLvoid *values[100];
+ int i;
+ glGetPointerv(rec->enumerator, values);
+ printf("%s = ", rec->string);
+ for (i = 0; i < rec->getCount; i++) {
+ printf("%p ", values[i]);
+ }
+ printf("\n");
+ }
+ break;
+ default:
+ printf("fatal error in PrintState()\n");
+ abort();
+ }
+ }
+ }
+ else {
+ printf("Unknown GLenum passed to PrintState()\n");
+ }
+}
+
+
+
+/*
+ * Print all glPixelStore-related state.
+ * NOTE: Should write similar functions for lighting, texturing, etc.
+ */
+void PrintPixelStoreState( void )
+{
+ const GLenum enums[] = {
+ GL_PACK_SWAP_BYTES,
+ GL_PACK_LSB_FIRST,
+ GL_PACK_ROW_LENGTH,
+ GL_PACK_SKIP_PIXELS,
+ GL_PACK_SKIP_ROWS,
+ GL_PACK_ALIGNMENT,
+ GL_UNPACK_SWAP_BYTES,
+ GL_UNPACK_LSB_FIRST,
+ GL_UNPACK_ROW_LENGTH,
+ GL_UNPACK_SKIP_PIXELS,
+ GL_UNPACK_SKIP_ROWS,
+ GL_UNPACK_ALIGNMENT,
+ 0
+ };
+ int i;
+ printf("Pixel pack/unpack state:\n");
+ for (i = 0; enums[i]; i++) {
+ PrintState(3, enums[i]);
+ }
+}
+
+
+
+
+/*
+ * Print all state for the given attribute group.
+ */
+void PrintAttribState( GLbitfield attrib )
+{
+ static const GLenum depth_buffer_enums[] = {
+ GL_DEPTH_FUNC,
+ GL_DEPTH_CLEAR_VALUE,
+ GL_DEPTH_TEST,
+ GL_DEPTH_WRITEMASK,
+ 0
+ };
+ static const GLenum fog_enums[] = {
+ GL_FOG,
+ GL_FOG_COLOR,
+ GL_FOG_DENSITY,
+ GL_FOG_START,
+ GL_FOG_END,
+ GL_FOG_INDEX,
+ GL_FOG_MODE,
+ 0
+ };
+ static const GLenum line_enums[] = {
+ GL_LINE_SMOOTH,
+ GL_LINE_STIPPLE,
+ GL_LINE_STIPPLE_PATTERN,
+ GL_LINE_STIPPLE_REPEAT,
+ GL_LINE_WIDTH,
+ 0
+ };
+
+ const GLenum *enumList = NULL;
+
+ switch (attrib) {
+ case GL_DEPTH_BUFFER_BIT:
+ enumList = depth_buffer_enums;
+ printf("GL_DEPTH_BUFFER_BIT state:\n");
+ break;
+ case GL_FOG_BIT:
+ enumList = fog_enums;
+ printf("GL_FOG_BIT state:\n");
+ break;
+ case GL_LINE_BIT:
+ enumList = line_enums;
+ printf("GL_LINE_BIT state:\n");
+ break;
+ default:
+ printf("Bad value in PrintAttribState()\n");
+ }
+
+ if (enumList) {
+ int i;
+ for (i = 0; enumList[i]; i++)
+ PrintState(3, enumList[i]);
+ }
+}
+
+
+/*#define TEST*/
+#ifdef TEST
+
+#include <GL/glut.h>
+
+int main( int argc, char *argv[] )
+{
+ glutInit( &argc, argv );
+ glutInitWindowPosition(0, 0);
+ glutInitWindowSize(400, 300);
+ glutInitDisplayMode(GLUT_RGB);
+ glutCreateWindow(argv[0]);
+ PrintAttribState(GL_DEPTH_BUFFER_BIT);
+ PrintAttribState(GL_FOG_BIT);
+ PrintAttribState(GL_LINE_BIT);
+ PrintState(0, GL_ALPHA_BITS);
+ PrintState(0, GL_VIEWPORT);
+ PrintState(0, GL_ALPHA_TEST_FUNC);
+ PrintState(0, GL_MODELVIEW_MATRIX);
+ PrintState(0, GL_ALWAYS);
+ PrintPixelStoreState();
+ return 0;
+}
+
+#endif