/** \return GL_TRUE for pass, GL_FALSE for fail */
static bool
test_fbo(const struct format_info *info)
{
const int comps = num_components(info->BaseFormat);
const GLenum type = get_datatype(info);
GLint f;
GLuint fbo, texObj;
GLenum status;
GLboolean intMode;
GLint buf;
bool pass = true;
if (0)
fprintf(stderr, "============ Testing format = %s ========\n", info->Name);
/* Create texture */
glGenTextures(1, &texObj);
glBindTexture(GL_TEXTURE_2D, texObj);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glTexImage2D(GL_TEXTURE_2D, 0, info->IntFormat, TexWidth, TexHeight, 0,
info->BaseFormat, type, NULL);
if (check_error(__FILE__, __LINE__))
return GL_FALSE;
glGetTexLevelParameteriv(GL_TEXTURE_2D, 0, GL_TEXTURE_INTERNAL_FORMAT, &f);
assert(f == info->IntFormat);
/* Create FBO to render to texture */
glGenFramebuffers(1, &fbo);
glBindFramebuffer(GL_FRAMEBUFFER, fbo);
glFramebufferTexture2D(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT,
GL_TEXTURE_2D, texObj, 0);
if (check_error(__FILE__, __LINE__))
return GL_FALSE;
status = glCheckFramebufferStatus(GL_FRAMEBUFFER_EXT);
if (status != GL_FRAMEBUFFER_COMPLETE_EXT) {
fprintf(stderr, "%s: failure: framebuffer incomplete.\n", TestName);
return GL_FALSE;
}
glGetBooleanv(GL_RGBA_INTEGER_MODE_EXT, &intMode);
if (check_error(__FILE__, __LINE__))
return GL_FALSE;
if (!intMode) {
fprintf(stderr, "%s: GL_RGBA_INTEGER_MODE_EXT return GL_FALSE\n",
TestName);
return GL_FALSE;
}
glGetIntegerv(GL_READ_BUFFER, &buf);
assert(buf == GL_COLOR_ATTACHMENT0_EXT);
glGetIntegerv(GL_DRAW_BUFFER, &buf);
assert(buf == GL_COLOR_ATTACHMENT0_EXT);
/* test clearing */
if (1) {
/* clear with an integer - exp unsigned int */
static const GLint clr_i[4] = { 300000005, -7, 6, 5 };
static const GLuint exp_ui[4] = { 300000005, 0, 6, 5 };
/* clear with an unsigned integer - exp int */
static const GLuint clr_ui[4] = { 300000005, 0x80000007, 6, 5 };
static const GLint exp_i[4] = { 300000005, 0x7fffffff, 6, 5 };
GLint pix[4], i;
GLuint pix_ui[4];
if (info->Signed)
glClearColorIiEXT(clr_i[0], clr_i[1], clr_i[2], clr_i[3]);
else
glClearColorIuiEXT(clr_ui[0], clr_ui[1], clr_ui[2], clr_ui[3]);
glClear(GL_COLOR_BUFFER_BIT);
if (info->Signed)
glReadPixels(5, 5, 1, 1, GL_RGBA_INTEGER_EXT, GL_UNSIGNED_INT, pix_ui);
else
glReadPixels(5, 5, 1, 1, GL_RGBA_INTEGER_EXT, GL_INT, pix);
if (info->Signed) {
for (i = 0; i < comps; i++) {
if (pix_ui[i] != exp_ui[i]) {
fprintf(stderr, "%s: glClear failed\n", TestName);
fprintf(stderr, " Texture format = %s\n", info->Name);
fprintf(stderr, " Expected %u, %u, %u, %u\n",
exp_ui[0], exp_ui[1], exp_ui[2], exp_ui[3]);
fprintf(stderr, " Found %u, %u, %u, %u\n",
pix_ui[0], pix_ui[1], pix_ui[2], pix_ui[3]);
pass = false;
break;
}
}
} else {
for (i = 0; i < comps; i++) {
if (pix[i] != exp_i[i]) {
fprintf(stderr, "%s: glClear failed\n", TestName);
fprintf(stderr, " Texture format = %s\n", info->Name);
fprintf(stderr, " Expected %d, %d, %d, %d\n",
exp_i[0], exp_i[1], exp_i[2], exp_i[3]);
fprintf(stderr, " Found %d, %d, %d, %d\n",
pix[0], pix[1], pix[2], pix[3]);
pass = false;
break;
}
}
}
}
glutSwapBuffers();
glDeleteTextures(1, &texObj);
glDeleteFramebuffers(1, &fbo);
return pass;
}
JNIEXPORT void JNICALL Java_org_lwjgl_opengl_EXTTextureInteger_nglClearColorIuiEXT(JNIEnv *env, jclass clazz, jint r, jint g, jint b, jint a, jlong function_pointer) {
glClearColorIuiEXTPROC glClearColorIuiEXT = (glClearColorIuiEXTPROC)((intptr_t)function_pointer);
glClearColorIuiEXT(r, g, b, a);
}
