Copy piglit-framework.c to piglit-framework-fbo.c. The following commits
will refactor each so that all the piglit_framework_fbo code is contained
in piglit-framework-fbo.c. This copy is done before the refactor so that
git merges go smoothly.

The piglit_framework_fbo code needs to be relocated to its own file
because following commits will add an implementation atop Waffle.
Currently, the piglit_framework_fbo code is only implemented for GLX. The
increase in code size and #ifdef complexity warrants moving it to its own
file.

CC: Pauli Nieminen <[email protected]>
Signed-off-by: Chad Versace <[email protected]>
---
 tests/util/piglit-framework-fbo.c |  310 +++++++++++++++++++++++++++++++++++++
 1 file changed, 310 insertions(+)
 create mode 100644 tests/util/piglit-framework-fbo.c

diff --git a/tests/util/piglit-framework-fbo.c 
b/tests/util/piglit-framework-fbo.c
new file mode 100644
index 0000000..dac04b7
--- /dev/null
+++ b/tests/util/piglit-framework-fbo.c
@@ -0,0 +1,310 @@
+/*
+ * Copyright © 2009 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+/**
+ * Simple test case framework.
+ *
+ * \author Ian Romanick <[email protected]>
+ */
+#include <assert.h>
+#include <string.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <math.h>
+
+#include "piglit-util.h"
+#include "piglit-framework.h"
+#ifdef USE_GLX
+#include "piglit-glx-util.h"
+#endif
+
+int piglit_automatic = 0;
+bool piglit_use_fbo = false;
+unsigned piglit_winsys_fbo = 0;
+static int piglit_window;
+static enum piglit_result result;
+#ifdef USE_GLX
+Display *piglit_glx_dpy;
+Window piglit_glx_window;
+XVisualInfo *piglit_glx_visinfo;
+GLXContext piglit_glx_context;
+#endif
+
+static void
+display(void)
+{
+       result = piglit_display();
+
+       if (piglit_automatic) {
+               glutDestroyWindow(piglit_window);
+#ifdef FREEGLUT
+               /* Tell GLUT to clean up and exit, so that we can
+                * reasonably valgrind our testcases for memory
+                * leaks by the GL.
+                */
+               glutSetOption(GLUT_ACTION_ON_WINDOW_CLOSE,
+                             GLUT_ACTION_GLUTMAINLOOP_RETURNS);
+               glutLeaveMainLoop();
+#else
+               piglit_report_result(result);
+#endif
+       }
+}
+
+static void
+reshape(int w, int h)
+{
+       piglit_width = w;
+       piglit_height = h;
+
+       glViewport(0, 0, w, h);
+}
+
+/* Swapbuffers the results to the window in non-auto mode. */
+void
+piglit_present_results()
+{
+       if (!piglit_automatic && !piglit_use_fbo)
+               glutSwapBuffers();
+}
+
+static void
+piglit_framework_glut_init(int argc, char *argv[])
+{
+       piglit_glutInit(argc, argv);
+
+       glutInitWindowPosition(0, 0);
+       glutInitWindowSize(piglit_width, piglit_height);
+       glutInitDisplayMode(piglit_window_mode);
+       piglit_window = glutCreateWindow(argv[0]);
+
+#ifdef USE_GLX
+       if (piglit_automatic)
+               piglit_glx_set_no_input();
+#endif
+
+       glutDisplayFunc(display);
+       glutReshapeFunc(reshape);
+       glutKeyboardFunc(piglit_escape_exit_key);
+
+#ifdef USE_OPENGL
+       glewInit();
+#endif
+}
+
+#ifdef USE_GLX
+static void
+piglit_framework_fbo_glx_init()
+{
+       piglit_glx_dpy = piglit_get_glx_display();
+
+       /* Unfortunately in GLX we need a drawable to bind our context
+        * to.  Make an unmapped window.
+        */
+       piglit_glx_visinfo = piglit_get_glx_visual(piglit_glx_dpy);
+
+       piglit_glx_context = piglit_get_glx_context(piglit_glx_dpy,
+                                                   piglit_glx_visinfo);
+
+       piglit_glx_window = piglit_get_glx_window_unmapped(piglit_glx_dpy,
+                                                          piglit_glx_visinfo);
+
+       glXMakeCurrent(piglit_glx_dpy, piglit_glx_window, piglit_glx_context);
+}
+#endif
+
+static void
+piglit_framework_fbo_glx_destroy()
+{
+#ifdef USE_GLX
+       glXMakeCurrent(piglit_glx_dpy, None, None);
+       glXDestroyContext(piglit_glx_dpy, piglit_glx_context);
+       XFree(piglit_glx_visinfo);
+       XCloseDisplay(piglit_glx_dpy);
+#endif
+}
+
+static void
+piglit_framework_fbo_destroy()
+{
+#ifdef USE_OPENGL
+       glDeleteFramebuffers(1, &piglit_winsys_fbo);
+#endif
+       piglit_winsys_fbo = 0;
+       piglit_framework_fbo_glx_destroy();
+}
+
+static bool
+piglit_framework_fbo_init()
+{
+#ifdef USE_GLX
+       GLuint tex, depth = 0;
+       GLenum status;
+
+       piglit_framework_fbo_glx_init();
+
+#ifdef USE_OPENGL
+       glewInit();
+
+       if (piglit_get_gl_version() < 20)
+               return false;
+#endif
+
+       glGenFramebuffers(1, &piglit_winsys_fbo);
+       glBindFramebuffer(GL_FRAMEBUFFER, piglit_winsys_fbo);
+
+       glGenTextures(1, &tex);
+       glBindTexture(GL_TEXTURE_2D, tex);
+       glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA,
+                    piglit_width, piglit_height, 0,
+                    GL_RGBA, GL_UNSIGNED_BYTE, NULL);
+       glFramebufferTexture2D(GL_FRAMEBUFFER,
+                              GL_COLOR_ATTACHMENT0,
+                              GL_TEXTURE_2D,
+                              tex,
+                              0);
+
+       if (piglit_window_mode & (GLUT_DEPTH | GLUT_STENCIL)) {
+               GLenum depth_stencil;
+
+#ifdef USE_OPENGL
+               depth_stencil = GL_DEPTH_STENCIL;
+#else
+               depth_stencil = GL_DEPTH_STENCIL_OES;
+#endif
+
+               glGenTextures(1, &depth);
+               glBindTexture(GL_TEXTURE_2D, depth);
+               glTexImage2D(GL_TEXTURE_2D, 0, depth_stencil,
+                            piglit_width, piglit_height, 0,
+                            GL_RGBA, GL_UNSIGNED_BYTE, NULL);
+               glFramebufferTexture2D(GL_FRAMEBUFFER,
+                                      GL_DEPTH_ATTACHMENT,
+                                      GL_TEXTURE_2D,
+                                      depth,
+                                      0);
+               glFramebufferTexture2D(GL_FRAMEBUFFER,
+                                      GL_STENCIL_ATTACHMENT,
+                                      GL_TEXTURE_2D,
+                                      depth,
+                                      0);
+       }
+
+       glBindTexture(GL_TEXTURE_2D, 0);
+
+       status = glCheckFramebufferStatus(GL_FRAMEBUFFER);
+       if (status != GL_FRAMEBUFFER_COMPLETE) {
+               fprintf(stderr,
+                       "-fbo resulted in incomplete FBO, falling back\n");
+               glBindFramebuffer(GL_FRAMEBUFFER, 0);
+
+               glDeleteTextures(1, &depth);
+               glDeleteTextures(1, &tex);
+
+               piglit_framework_fbo_destroy();
+
+               return false;
+       }
+
+       return true;
+#else /* USE_GLX */
+       return false;
+#endif /* USE_GLX */
+}
+
+static void
+delete_arg(char *argv[], int argc, int arg)
+{
+       int i;
+
+       for (i = arg + 1; i < argc; i++) {
+               argv[i - 1] = argv[i];
+       }
+}
+
+int main(int argc, char *argv[])
+{
+       int j;
+
+       /* Find/remove "-auto" and "-fbo" from the argument vector.
+        */
+       for (j = 1; j < argc; j++) {
+               if (!strcmp(argv[j], "-auto")) {
+                       piglit_automatic = 1;
+                       delete_arg(argv, argc--, j--);
+               } else if (!strcmp(argv[j], "-fbo")) {
+                       piglit_use_fbo = true;
+                       delete_arg(argv, argc--, j--);
+               } else if (!strcmp(argv[j], "-rlimit")) {
+                       char *ptr;
+                       unsigned long lim;
+                       int i;
+
+                       j++;
+                       if (j >= argc) {
+                               fprintf(stderr,
+                                       "-rlimit requires an argument\n");
+                               piglit_report_result(PIGLIT_FAIL);
+                       }
+
+                       lim = strtoul(argv[j], &ptr, 0);
+                       if (ptr == argv[j]) {
+                               fprintf(stderr,
+                                       "-rlimit requires an argument\n");
+                               piglit_report_result(PIGLIT_FAIL);
+                       }
+
+                       piglit_set_rlimit(lim);
+
+                       /* Remove 2 arguments (hence the 'i - 2') from the
+                        * command line.
+                        */
+                       for (i = j + 1; i < argc; i++) {
+                               argv[i - 2] = argv[i];
+                       }
+                       argc -= 2;
+                       j -= 2;
+               }
+       }
+
+       if (piglit_use_fbo) {
+               if (!piglit_framework_fbo_init())
+                       piglit_use_fbo = false;
+       }
+
+       if (!piglit_use_fbo)
+               piglit_framework_glut_init(argc, argv);
+
+       piglit_init(argc, argv);
+
+       if (piglit_use_fbo) {
+               result = piglit_display();
+               piglit_framework_fbo_destroy();
+       } else {
+               glutMainLoop();
+       }
+
+       piglit_report_result(result);
+       /* UNREACHED */
+       return 0;
+}
-- 
1.7.10.1

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