--- /dev/null
+#include "utest_helper.hpp"
+
+static void read_back(int tex, int width, int height, uint32_t * resultColor)
+{
+ float vertices[8] = {-1, 1, 1, 1, 1, -1, -1, -1};
+ float tex_coords[8] = {0, 0, 1, 0, 1, 1, 0, 1};
+
+ 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);
+ glFlush();
+ OCL_SWAP_EGL_BUFFERS();
+
+ glReadPixels(0, 0, width, height, GL_RGBA, GL_UNSIGNED_INT_8_8_8_8, resultColor);
+}
+
+
+static void compiler_fill_gl_image(void)
+{
+ const size_t w = EGL_WINDOW_WIDTH;
+ const size_t h = EGL_WINDOW_HEIGHT;
+ uint32_t color = 0x123456FF;
+ uint32_t *resultColor;
+ GLuint tex;
+
+ // Setup kernel and images
+ glGenTextures(1, &tex);
+ glBindTexture(GL_TEXTURE_2D, tex);
+ // Must set the all filters to GL_NEAREST!
+ 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);
+
+ OCL_CREATE_KERNEL("test_fill_gl_image");
+ OCL_CREATE_GL_IMAGE(buf[0], 0, GL_TEXTURE_2D, 0, tex);
+
+ // Run the kernel
+ OCL_SET_ARG(0, sizeof(cl_mem), &buf[0]);
+ OCL_SET_ARG(1, sizeof(color), &color);
+ globals[0] = w;
+ globals[1] = h;
+ locals[0] = 16;
+ locals[1] = 16;
+ glFinish();
+ OCL_ENQUEUE_ACQUIRE_GL_OBJECTS(0);
+ OCL_NDRANGE(2);
+ OCL_FLUSH();
+
+ // Check result
+ resultColor = new uint32_t[w * h * 4];
+ if (resultColor == NULL)
+ assert(0);
+
+ read_back(tex, w, h, resultColor);
+ for (uint32_t j = 0; j < h; ++j)
+ for (uint32_t i = 0; i < w; i++)
+ OCL_ASSERT(resultColor[j * w + i] == color);
+ OCL_UNMAP_BUFFER(0);
+ delete resultColor;
+}
+
+MAKE_UTEST_FROM_FUNCTION(compiler_fill_gl_image);