1 /*
2 * (C) Copyright IBM Corporation 2005
3 * All Rights Reserved.
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * on the rights to use, copy, modify, merge, publish, distribute, sub
9 * license, and/or sell copies of the Software, and to permit persons to whom
10 * the Software is furnished to do so, subject to the following conditions:
11 *
12 * The above copyright notice and this permission notice (including the next
13 * paragraph) shall be included in all copies or substantial portions of the
14 * Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
19 * VA LINUX SYSTEM, IBM AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
20 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
21 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
22 * USE OR OTHER DEALINGS IN THE SOFTWARE.
23 */
24
25 /**
26 * \file crossbar.c
27 *
28 * Simple test of GL_ARB_texture_env_crossbar functionality. Several squares
29 * are drawn with different texture combine modes, but all should be rendered
30 * with the same final color.
31 *
32 * \author Ian Romanick <idr@us.ibm.com>
33 */
34
35 #include <stdio.h>
36 #include <stdlib.h>
37 #include <string.h>
38
39 #include "piglit-util-gl.h"
40
41 static const GLint tests[][8] = {
42 { 1, GL_REPLACE, GL_PRIMARY_COLOR, GL_PRIMARY_COLOR,
43 2, GL_REPLACE, GL_TEXTURE, GL_PRIMARY_COLOR },
44 { 3, GL_REPLACE, GL_PRIMARY_COLOR, GL_PRIMARY_COLOR,
45 2, GL_SUBTRACT, GL_TEXTURE0, GL_TEXTURE1 },
46 { 2, GL_REPLACE, GL_PRIMARY_COLOR, GL_PRIMARY_COLOR,
47 2, GL_REPLACE, GL_TEXTURE0, GL_TEXTURE0 },
48 { 2, GL_REPLACE, GL_PRIMARY_COLOR, GL_PRIMARY_COLOR,
49 1, GL_SUBTRACT, GL_TEXTURE0, GL_TEXTURE1 },
50 { 3, GL_ADD, GL_TEXTURE1, GL_TEXTURE1,
51 2, GL_MODULATE, GL_TEXTURE1, GL_PREVIOUS },
52 { 3, GL_ADD, GL_TEXTURE1, GL_TEXTURE1,
53 4, GL_MODULATE, GL_TEXTURE0, GL_PREVIOUS },
54 };
55
56 #define NUM_TESTS (sizeof(tests) / sizeof(tests[0]))
57
58 PIGLIT_GL_TEST_CONFIG_BEGIN
59
60 config.supports_gl_compat_version = 10;
61
62 config.window_width = 100*(NUM_TESTS+1);
63 config.window_height = 100;
64 config.window_visual = PIGLIT_GL_VISUAL_RGB | PIGLIT_GL_VISUAL_DOUBLE;
65 config.khr_no_error_support = PIGLIT_NO_ERRORS;
66
67 PIGLIT_GL_TEST_CONFIG_END
68
DoFrame(void)69 static void DoFrame( void )
70 {
71 unsigned i;
72
73 glClearColor(0.0, 0.0, 1.0, 0);
74 glClear( GL_COLOR_BUFFER_BIT );
75
76 glPushMatrix();
77
78 /* This is the "reference" square.
79 */
80
81 glActiveTexture( GL_TEXTURE0 );
82 glDisable( GL_TEXTURE_2D );
83 glActiveTexture( GL_TEXTURE1 );
84 glDisable( GL_TEXTURE_2D );
85
86 glTranslatef(1.5, 0.0, 0.0);
87 glBegin(GL_QUADS);
88 glColor3f( 0.5, 0.5, 0.5 );
89 glVertex2f(-1, -1);
90 glVertex2f( 1, -1);
91 glVertex2f( 1, 1);
92 glVertex2f(-1, 1);
93 glEnd();
94
95 for ( i = 0 ; i < NUM_TESTS ; i++ ) {
96 glActiveTexture( GL_TEXTURE0 );
97 glEnable( GL_TEXTURE_2D );
98 glBindTexture( GL_TEXTURE_2D, tests[i][0] );
99 glTexEnvi( GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE );
100 glTexEnvi( GL_TEXTURE_ENV, GL_COMBINE_RGB, tests[i][1] );
101 glTexEnvi( GL_TEXTURE_ENV, GL_SOURCE0_RGB, tests[i][2] );
102 glTexEnvi( GL_TEXTURE_ENV, GL_SOURCE1_RGB, tests[i][3] );
103
104 glActiveTexture( GL_TEXTURE1 );
105 glEnable( GL_TEXTURE_2D );
106 glBindTexture( GL_TEXTURE_2D, tests[i][4] );
107 glTexEnvi( GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE );
108 glTexEnvi( GL_TEXTURE_ENV, GL_COMBINE_RGB, tests[i][5] );
109 glTexEnvi( GL_TEXTURE_ENV, GL_SOURCE0_RGB, tests[i][6] );
110 glTexEnvi( GL_TEXTURE_ENV, GL_SOURCE1_RGB, tests[i][7] );
111
112 glCallList(1);
113 }
114
115 glPopMatrix();
116
117 }
118
DoTest(void)119 static bool DoTest( void )
120 {
121 const static float expected[] = {0.5f, 0.5f, 0.5f};
122 bool pass = true;
123 int i;
124
125 for( i = 0; i <= NUM_TESTS; ++i ) {
126 pass = piglit_probe_pixel_rgb(piglit_width*(2*i+1)/((NUM_TESTS+1)*2),
127 piglit_height/2,
128 expected) && pass;
129 }
130
131 return pass;
132 }
133
134 enum piglit_result
piglit_display(void)135 piglit_display(void)
136 {
137 if (piglit_automatic) {
138 DoFrame();
139 piglit_present_results();
140 return PIGLIT_PASS;
141 } else {
142 bool success, retry;
143
144 printf("\nFirst frame\n-----------\n");
145 DoFrame();
146 success = DoTest();
147 piglit_present_results();
148
149 printf("\nSecond frame\n------------\n");
150
151 DoFrame();
152 retry = DoTest();
153 piglit_present_results();
154
155 if (retry && success)
156 return PIGLIT_PASS;
157 else
158 return PIGLIT_FAIL;
159 }
160 }
161
piglit_init(int argc,char ** argv)162 void piglit_init(int argc, char **argv)
163 {
164 const char * const ver_string = (const char * const)
165 glGetString( GL_VERSION );
166 float ver = strtod( ver_string, NULL );
167 GLint tex_units;
168 GLint temp[ 256 ];
169
170 piglit_gen_ortho_projection( 0, 3*(NUM_TESTS+1), -1.5, 1.5, -1, 1, GL_FALSE );
171
172 if ( (!piglit_is_extension_supported("GL_ARB_multitexture")
173 && (ver < 1.3))
174 || (!piglit_is_extension_supported("GL_ARB_texture_env_combine")
175 && !piglit_is_extension_supported("GL_EXT_texture_env_combine")
176 && (ver < 1.3))
177 || (!piglit_is_extension_supported("GL_ARB_texture_env_crossbar")
178 && !piglit_is_extension_supported("GL_NV_texture_env_combine4")
179 && (ver < 1.4)) ) {
180 printf("\nSorry, this program requires GL_ARB_multitexture and either\n"
181 "GL_ARB_texture_env_combine or GL_EXT_texture_env_combine (or OpenGL 1.3).\n"
182 "Either GL_ARB_texture_env_crossbar or GL_NV_texture_env_combine4 (or\n"
183 "OpenGL 1.4) are also required.\n");
184 if (!piglit_automatic)
185 printf("PIGLIT: {'result': 'fail' }\n");
186 exit(1);
187 }
188
189 glGetIntegerv( GL_MAX_TEXTURE_UNITS, & tex_units );
190 if ( tex_units < 2 ) {
191 printf("\nSorry, this program requires at least 2 texture units.\n");
192 if (!piglit_automatic)
193 printf("PIGLIT: {'result': 'fail' }\n");
194 exit(1);
195 }
196
197 if (piglit_automatic)
198 printf("\nAll %lu squares should be the same color.\n", (unsigned long) NUM_TESTS + 1);
199
200 (void) memset( temp, 0x00, sizeof( temp ) );
201 glBindTexture( GL_TEXTURE_2D, 1 );
202 glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST );
203 glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST );
204 glTexImage2D( GL_TEXTURE_2D, 0, GL_RGBA, 8, 8, 0,
205 GL_RGBA, GL_UNSIGNED_BYTE, temp );
206
207 (void) memset( temp, 0x7f, sizeof( temp ) );
208 glBindTexture( GL_TEXTURE_2D, 2 );
209 glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST );
210 glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST );
211 glTexImage2D( GL_TEXTURE_2D, 0, GL_RGBA, 8, 8, 0,
212 GL_RGBA, GL_UNSIGNED_BYTE, temp );
213
214 (void) memset( temp, 0xff, sizeof( temp ) );
215 glBindTexture( GL_TEXTURE_2D, 3 );
216 glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST );
217 glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST );
218 glTexImage2D( GL_TEXTURE_2D, 0, GL_RGBA, 8, 8, 0,
219 GL_RGBA, GL_UNSIGNED_BYTE, temp );
220
221 (void) memset( temp, 0x3f, sizeof( temp ) );
222 glBindTexture( GL_TEXTURE_2D, 4 );
223 glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST );
224 glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST );
225 glTexImage2D( GL_TEXTURE_2D, 0, GL_RGBA, 8, 8, 0,
226 GL_RGBA, GL_UNSIGNED_BYTE, temp );
227
228
229 glNewList( 1, GL_COMPILE );
230 glTranslatef(3.0, 0, 0);
231 glBegin(GL_QUADS);
232 glColor3f( 0.9, 0.0, 0.0 );
233 glMultiTexCoord2f( GL_TEXTURE0, 0.5, 0.5 );
234 glMultiTexCoord2f( GL_TEXTURE1, 0.5, 0.5 );
235 glVertex2f(-1, -1);
236 glVertex2f( 1, -1);
237 glVertex2f( 1, 1);
238 glVertex2f(-1, 1);
239 glEnd();
240 glEndList();
241 }
242