tests: Added a test for a strange bug in texstore_a8

3 files changed, 196 insertions, 0 deletions

diff --git a/progs/tests/.gitignore b/progs/tests/.gitignore
index a72f552..40cb685 100644
--- a/progs/tests/.gitignore
+++ b/progs/tests/.gitignore
@@ -18,6 +18,7 @@ bufferobj
 bug_3050
 bug_3101
 bug_3195
+bug_texstore_i8
 calibrate_rast
 copypixrate
 crossbar
diff --git a/progs/tests/Makefile b/progs/tests/Makefile
index 75d1eca..7e8c0c8 100644
--- a/progs/tests/Makefile
+++ b/progs/tests/Makefile
@@ -30,6 +30,7 @@ SOURCES = \
 	bug_3050.c \
 	bug_3101.c \
 	bug_3195.c \
+	bug_texstore_i8.c \
 	calibrate_rast.c \
 	copypixrate.c \
 	crossbar.c \
diff --git a/progs/tests/bug_texstore_i8.c b/progs/tests/bug_texstore_i8.c
new file mode 100644
index 0000000..f8dac21
--- /dev/null
+++ b/progs/tests/bug_texstore_i8.c
@@ -0,0 +1,194 @@
+/*
+ * Copyright (c) 1991, 1992, 1993 Silicon Graphics, Inc.
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and
+ * its documentation for any purpose is hereby granted without fee, provided
+ * that (i) the above copyright notices and this permission notice appear in
+ * all copies of the software and related documentation, and (ii) the name of
+ * Silicon Graphics may not be used in any advertising or
+ * publicity relating to the software without the specific, prior written
+ * permission of Silicon Graphics.
+ *
+ * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF
+ * ANY KIND,
+ * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
+ * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * IN NO EVENT SHALL SILICON GRAPHICS BE LIABLE FOR
+ * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND,
+ * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
+ * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF
+ * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
+ * OF THIS SOFTWARE.
+ */
+/*
+ * Based on the trivial/quad-tex-2d program.
+ * Modified by Jakob Bornecrantz <jakob@tungstengraphics.com>
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <GL/glut.h>
+
+static GLenum Target = GL_TEXTURE_2D;
+static GLenum Filter = GL_NEAREST;
+GLenum doubleBuffer;
+static float Rot = 0;
+static int win = 0;
+
+static void Init(void)
+{
+	int internalFormat;
+	int sourceFormat;
+
+	fprintf(stderr, "GL_RENDERER   = %s\n", (char *) glGetString(GL_RENDERER));
+	fprintf(stderr, "GL_VERSION    = %s\n", (char *) glGetString(GL_VERSION));
+	fprintf(stderr, "GL_VENDOR     = %s\n", (char *) glGetString(GL_VENDOR));
+
+	glClearColor(0.0, 0.0, 1.0, 0.0);
+
+#define SIZE 16
+	{
+		GLubyte tex2d[SIZE][SIZE][4];
+		GLint s, t;
+
+		for (s = 0; s < SIZE; s++) {
+			for (t = 0; t < SIZE; t++) {
+				tex2d[t][s][0] = 0xff;
+				tex2d[t][s][1] = 0xff;
+				tex2d[t][s][2] = 0xff;
+				tex2d[t][s][3] = 0xff;
+			}
+		}
+
+		internalFormat = GL_LUMINANCE8;
+		sourceFormat = GL_RGBA;
+
+		glTexImage2D(Target,
+			0,
+			internalFormat,
+			SIZE, SIZE,
+			0,
+			sourceFormat,
+			GL_UNSIGNED_BYTE,
+			//GL_UNSIGNED_INT,
+			tex2d);
+
+		glEnable(Target);
+		glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
+		glTexParameterf(Target, GL_TEXTURE_WRAP_R, GL_REPEAT);
+		glTexParameterf(Target, GL_TEXTURE_MIN_FILTER, Filter);
+		glTexParameterf(Target, GL_TEXTURE_MAG_FILTER, Filter);
+	}
+}
+
+static void Reshape(int width, int height)
+{
+	glViewport(0, 0, (GLint)width, (GLint)height);
+	glMatrixMode(GL_PROJECTION);
+	glLoadIdentity();
+#if 0
+	glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0);
+#else
+	glFrustum(-1, 1, -1, 1, 10, 20);
+#endif
+	glMatrixMode(GL_MODELVIEW);
+	glLoadIdentity();
+	glTranslatef(0, 0, -15);
+}
+
+static void Key(unsigned char key, int x, int y)
+{
+	switch (key) {
+	case 'r':
+		Rot += 10.0;
+		break;
+	case 'R':
+		Rot -= 10.0;
+		break;
+	case 27:
+		glutDestroyWindow(win);
+		exit(0);
+	default:
+		return;
+	}
+	glutPostRedisplay();
+}
+
+static void Draw(void)
+{
+	glClear(GL_COLOR_BUFFER_BIT);
+
+	glPushMatrix();
+	glRotatef(Rot, 0, 1, 0);
+
+	glBegin(GL_QUADS);
+	glTexCoord2f(1,0);
+	glVertex3f( 0.9, -0.9, 0.0);
+	glTexCoord2f(1,1);
+	glVertex3f( 0.9,  0.9, 0.0);
+	glTexCoord2f(0,1);
+	glVertex3f(-0.9,  0.9, 0.0);
+	glTexCoord2f(0,0);
+	glVertex3f(-0.9,  -0.9, 0.0);
+	glEnd();
+
+	glPopMatrix();
+
+	glFlush();
+
+	if (doubleBuffer) {
+		glutSwapBuffers();
+	}
+}
+
+static GLenum Args(int argc, char **argv)
+{
+	GLint i;
+
+	doubleBuffer = GL_FALSE;
+
+	for (i = 1; i < argc; i++) {
+		if (strcmp(argv[i], "-sb") == 0) {
+			doubleBuffer = GL_FALSE;
+		} else if (strcmp(argv[i], "-db") == 0) {
+			doubleBuffer = GL_TRUE;
+		} else {
+			fprintf(stderr, "%s (Bad option).\n", argv[i]);
+			return GL_FALSE;
+		}
+	}
+	return GL_TRUE;
+}
+
+int main(int argc, char **argv)
+{
+	GLenum type;
+
+	glutInit(&argc, argv);
+
+	if (Args(argc, argv) == GL_FALSE) {
+		exit(1);
+	}
+
+	glutInitWindowPosition(0, 0);
+	glutInitWindowSize(250, 250);
+
+	type = GLUT_RGB;
+	type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE;
+	glutInitDisplayMode(type);
+
+	win = glutCreateWindow("Tex test");
+	if (!win) {
+		exit(1);
+	}
+
+	Init();
+
+	glutReshapeFunc(Reshape);
+	glutKeyboardFunc(Key);
+	glutDisplayFunc(Draw);
+	glutMainLoop();
+	return 0;
+}