static enum piglit_result
test(void)
{
GLenum buffers[32];
static const GLfloat dest_color[4] = { 0.75, 0.25, 0.25, 0.5 };
static const GLfloat test_color[4] = { 1.0, 0.25, 0.75, 0.25 };
GLfloat expected[32][4];
int i;
create_fbo();
for (i = 0; i < maxBuffers; i++) {
buffers[i] = GL_COLOR_ATTACHMENT0_EXT + i;
}
glDrawBuffersARB(maxBuffers, buffers);
/* Setup blend modes and compute expected result color.
* We only test two simple blending modes. A more elaborate
* test would exercise a much wider variety of modes.
*/
for (i = 0; i < maxBuffers; i++) {
if (i % 2 == 0) {
float a;
glBlendFunciARB(i, GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
a = test_color[3];
expected[i][0] = test_color[0] * a + dest_color[0] * (1.0 - a);
expected[i][1] = test_color[1] * a + dest_color[1] * (1.0 - a);
expected[i][2] = test_color[2] * a + dest_color[2] * (1.0 - a);
expected[i][3] = test_color[3] * a + dest_color[3] * (1.0 - a);
}
else {
glBlendFunciARB(i, GL_ONE, GL_ONE);
glBlendEquationiARB(i, GL_FUNC_SUBTRACT);
expected[i][0] = test_color[0] - dest_color[0];
expected[i][1] = test_color[1] - dest_color[1];
expected[i][2] = test_color[2] - dest_color[2];
expected[i][3] = test_color[3] - dest_color[3];
}
expected[i][0] = CLAMP(expected[i][0], 0.0, 1.0);
expected[i][1] = CLAMP(expected[i][1], 0.0, 1.0);
expected[i][2] = CLAMP(expected[i][2], 0.0, 1.0);
expected[i][3] = CLAMP(expected[i][3], 0.0, 1.0);
glEnableIndexedEXT(GL_BLEND, i);
}
/* query blend modes */
for (i = 0; i < maxBuffers; i++) {
GLint p0, p1, p2, p3;
glGetIntegerIndexedvEXT(GL_BLEND_SRC, i, &p0);
glGetIntegerIndexedvEXT(GL_BLEND_DST, i, &p1);
glGetIntegerIndexedvEXT(GL_BLEND_EQUATION, i, &p2);
glGetIntegerIndexedvEXT(GL_BLEND, i, &p3);
if (i % 2 == 0) {
MY_ASSERT(p0 == GL_SRC_ALPHA);
MY_ASSERT(p1 == GL_ONE_MINUS_SRC_ALPHA);
MY_ASSERT(p2 == GL_FUNC_ADD);
}
else {
MY_ASSERT(p0 == GL_ONE);
MY_ASSERT(p1 == GL_ONE);
MY_ASSERT(p2 == GL_FUNC_SUBTRACT);
}
MY_ASSERT(p3 == GL_TRUE);
}
/* test drawing */
glClearColor(dest_color[0], dest_color[1], dest_color[2], dest_color[3]);
glClear(GL_COLOR_BUFFER_BIT);
glColor4fv(test_color);
piglit_draw_rect(0, 0, piglit_width, piglit_height);
for (i = 0; i < maxBuffers; i++) {
glReadBuffer(GL_COLOR_ATTACHMENT0_EXT + i);
check_error(__LINE__);
if (!piglit_probe_pixel_rgba(5, 5, expected[i])) {
printf("For color buffer %d\n", i);
return PIGLIT_FAIL;
}
}
return PIGLIT_PASS;
}
JNIEXPORT void JNICALL Java_org_lwjgl_opengl_NVExplicitMultisample_nglGetIntegerIndexedvEXT(JNIEnv *env, jclass clazz, jint pname, jint index, jobject data, jint data_position, jlong function_pointer) {
GLint *data_address = ((GLint *)(*env)->GetDirectBufferAddress(env, data)) + data_position;
glGetIntegerIndexedvEXTPROC glGetIntegerIndexedvEXT = (glGetIntegerIndexedvEXTPROC)((intptr_t)function_pointer);
glGetIntegerIndexedvEXT(pname, index, data_address);
}
JNIEXPORT void JNICALL Java_org_lwjgl_opengl_EXTTransformFeedback_nglGetIntegerIndexedvEXT__IIJ(JNIEnv *__env, jclass clazz, jint target, jint index, jlong dataAddress) {
glGetIntegerIndexedvEXTPROC glGetIntegerIndexedvEXT = (glGetIntegerIndexedvEXTPROC)tlsGetFunction(1686);
intptr_t data = (intptr_t)dataAddress;
UNUSED_PARAM(clazz)
glGetIntegerIndexedvEXT(target, index, data);
}
