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/*
* Copyright © 2012 Intel Corporation
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*
*/
#include "utest_helper.hpp"
#include <stdio.h>
static cl_int cl_status;
const size_t w = EGL_WINDOW_WIDTH;
const size_t h = EGL_WINDOW_HEIGHT;
static GLuint tex;
static void draw(){
XEvent event;
float vertices[8] = {-1, 1, 1, 1, 1, -1, -1, -1};
float tex_coords[8] = {0, 0, 1, 0, 1, 1, 0, 1};
uint32_t color0 = 0x0000ff00;
for (;;)
{
XNextEvent(xDisplay, &event);
if (event.type == Expose)
{
glClearColor(0.0, 1.0, 0.0, 1.0);
glClear(GL_COLOR_BUFFER_BIT);
OCL_SET_ARG(0, sizeof(cl_mem), &buf[0]);
OCL_SET_ARG(1, sizeof(color0), &color0);
globals[0] = w;
globals[1] = h;
locals[0] = 16;
locals[1] = 16;
glFinish();
OCL_ENQUEUE_ACQUIRE_GL_OBJECTS(0);
OCL_NDRANGE(2);
OCL_ENQUEUE_RELEASE_GL_OBJECTS(0);
OCL_FINISH();
glBindTexture(GL_TEXTURE_2D, tex);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glEnable(GL_TEXTURE_2D);
glDisable(GL_BLEND);
glVertexPointer(2, GL_FLOAT, sizeof(float) * 2, vertices);
glEnableClientState(GL_VERTEX_ARRAY);
glClientActiveTexture(GL_TEXTURE0);
glTexCoordPointer(2, GL_FLOAT, sizeof(float) * 2, tex_coords);
glEnableClientState(GL_TEXTURE_COORD_ARRAY);
glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
glFinish();
eglSwapBuffers(eglDisplay, eglSurface);
}
if (event.type == KeyPress)
break;
}
}
static void initialize_ocl_gl(){
//ocl initialization: basic & create kernel & check extension
printf("\n***********************OpenCL info: ***********************\n");
if ((cl_status = cl_test_init("runtime_fill_gl_image.cl", "runtime_fill_gl_image", SOURCE)) != 0){
fprintf(stderr, "cl_test_init error\n");
exit(1);
}
if (eglContext == EGL_NO_CONTEXT) {
fprintf(stderr, "There is no valid egl context! Exit!\n");
exit(1);
}
XMapWindow(xDisplay, xWindow);
// Setup kernel and images
glGenTextures(1, &tex);
glBindTexture(GL_TEXTURE_2D, tex);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, w, h, 0, GL_RGBA, GL_UNSIGNED_INT_8_8_8_8, NULL);
//Create cl image from miplevel 0
OCL_CREATE_GL_IMAGE(buf[0], 0, GL_TEXTURE_2D, 0, tex);
}
int main(int argc, char *argv[])
{
initialize_ocl_gl();
draw();
//destroy resource of cl & gl
cl_test_destroy();
printf("\nExample run successfully!\n");
}
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