void
ShaderAPITest::test_uniform_neg_location(void)
{
GLuint program;
GLfloat data[4];
program = make_program("#version 110\nvoid main() { gl_Position = vec4(1.0, 1.0, 1.0, 1.0); }\n", NULL);
assert_no_error();
glUniform1i_func(-1, 1);
assert_no_error();
glUniform1i_func(-200, 1);
assert_error(GL_INVALID_OPERATION);
glUniformMatrix2fv_func(-1, 1, GL_FALSE, data);
assert_no_error();
glUniformMatrix2fv_func(-200, 1, GL_FALSE, data);
assert_error(GL_INVALID_OPERATION);
}
void
ShaderAPITest::test_uniform_bool_conversion(void)
{
GLuint program;
GLint location;
GLint value[16]; /* in case glGetUniformiv goes nuts on the stack */
assert_no_error();
program = make_program("uniform bool b;\nvoid main() { gl_Position.x = b ? 1.5 : 0.5; }\n", NULL);
location = glGetUniformLocation_func(program, "b");
assert(location != -1);
assert_no_error();
glUniform1i_func(location, 5);
assert_no_error();
glGetUniformiv_func(program, location, &value[0]);
assert_no_error();
assert(value[0] == 1);
}
static void
Init(void)
{
static const char *fragShaderText =
"uniform vec4 diffuse;\n"
"uniform vec4 specular;\n"
"varying vec3 normal;\n"
"void main() {\n"
" // Compute dot product of light direction and normal vector\n"
" float dotProd = max(dot(gl_LightSource[0].position.xyz, \n"
" normalize(normal)), 0.0);\n"
" // Compute diffuse and specular contributions\n"
" gl_FragColor = diffuse * dotProd + specular * pow(dotProd, 20.0);\n"
"}\n";
static const char *vertShaderText =
"varying vec3 normal;\n"
"void main() {\n"
" gl_Position = gl_ModelViewProjectionMatrix * gl_Vertex;\n"
" normal = gl_NormalMatrix * gl_Normal;\n"
"}\n";
const char *version;
version = (const char *) glGetString(GL_VERSION);
if (version[0] != '2' || version[1] != '.') {
printf("This program requires OpenGL 2.x, found %s\n", version);
exit(1);
}
GetExtensionFuncs();
fragShader = glCreateShader_func(GL_FRAGMENT_SHADER);
if (FragProgFile)
ReadShader(fragShader, FragProgFile);
else
LoadAndCompileShader(fragShader, fragShaderText);
vertShader = glCreateShader_func(GL_VERTEX_SHADER);
if (VertProgFile)
ReadShader(vertShader, VertProgFile);
else
LoadAndCompileShader(vertShader, vertShaderText);
program = glCreateProgram_func();
glAttachShader_func(program, fragShader);
glAttachShader_func(program, vertShader);
glLinkProgram_func(program);
CheckLink(program);
glUseProgram_func(program);
uDiffuse = glGetUniformLocation_func(program, "diffuse");
uSpecular = glGetUniformLocation_func(program, "specular");
uTexture = glGetUniformLocation_func(program, "texture");
printf("DiffusePos %d SpecularPos %d TexturePos %d\n",
uDiffuse, uSpecular, uTexture);
glUniform4fv_func(uDiffuse, 1, diffuse);
glUniform4fv_func(uSpecular, 1, specular);
/* assert(glGetError() == 0);*/
glUniform1i_func(uTexture, 2); /* use texture unit 2 */
/*assert(glGetError() == 0);*/
if (CoordAttrib) {
int i;
glBindAttribLocation_func(program, CoordAttrib, "coord");
i = glGetAttribLocation_func(program, "coord");
assert(i >= 0);
if (i != CoordAttrib) {
printf("Hmmm, NVIDIA bug?\n");
CoordAttrib = i;
}
else {
printf("Mesa bind attrib: coord = %d\n", i);
}
}
/*assert(glGetError() == 0);*/
glClearColor(0.3f, 0.3f, 0.3f, 0.0f);
glEnable(GL_DEPTH_TEST);
glEnable(GL_LIGHT0);
glEnable(GL_LIGHTING);
glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, diffuse);
glMaterialfv(GL_FRONT_AND_BACK, GL_SPECULAR, specular);
glMaterialf(GL_FRONT_AND_BACK, GL_SHININESS, 20.0f);
MakeSphere();
MakeRect();
CurList = SphereList;
#if TEXTURE
MakeTexture();
#endif
printf("GL_RENDERER = %s\n",(const char *) glGetString(GL_RENDERER));
printf("Press p to toggle between per-pixel and per-vertex lighting\n");
/* test glGetShaderSource() */
if (0) {
GLsizei len = strlen(fragShaderText) + 1;
GLsizei lenOut;
GLchar *src =(GLchar *) malloc(len * sizeof(GLchar));
glGetShaderSource_func(fragShader, 0, NULL, src);
glGetShaderSource_func(fragShader, len, &lenOut, src);
assert(len == lenOut + 1);
assert(strcmp(src, fragShaderText) == 0);
free(src);
}
assert(glIsProgram_func(program));
assert(glIsShader_func(fragShader));
assert(glIsShader_func(vertShader));
glColor3f(1, 0, 0);
/* for testing state vars */
{
static GLfloat fc[4] = { 1, 1, 0, 0 };
static GLfloat amb[4] = { 1, 0, 1, 0 };
glFogfv(GL_FOG_COLOR, fc);
glLightfv(GL_LIGHT1, GL_AMBIENT, amb);
}
#if 0
TestFunctions();
#else
(void) TestFunctions;
#endif
}
