fbo-storage-completeness: test that RenderbufferStorage affects completeness

3 files changed, 250 insertions, 0 deletions

diff --git a/tests/all.tests b/tests/all.tests
index 10c1ff909..edcd32ea6 100644
--- a/tests/all.tests
+++ b/tests/all.tests
@@ -149,6 +149,7 @@ add_plain_test(fbo, 'fbo-readpixels')
 add_plain_test(fbo, 'fbo-scissor-bitmap')
 add_plain_test(fbo, 'fbo-srgb')
 add_plain_test(fbo, 'fbo-storage-formats')
+add_plain_test(fbo, 'fbo-storage-completeness')
 add_plain_test(fbo, 'fbo-pbo-readpixels-small')
 add_fbo_rg(fbo, 'GL_RED')
 add_fbo_rg(fbo, 'GL_R8')
diff --git a/tests/fbo/CMakeLists.gl.txt b/tests/fbo/CMakeLists.gl.txt
index 272d176c5..ab520b640 100644
--- a/tests/fbo/CMakeLists.gl.txt
+++ b/tests/fbo/CMakeLists.gl.txt
@@ -65,6 +65,7 @@ IF (UNIX)
 	target_link_libraries (fbo-srgb m)
 ENDIF (UNIX)
 add_executable (fbo-storage-formats fbo-storage-formats.c)
+add_executable (fbo-storage-completeness fbo-storage-completeness.c)
 add_executable (fbo-pbo-readpixels-small fbo-pbo-readpixels-small.c)
 add_executable (fbo-copyteximage fbo-copyteximage.c)
 add_executable (fbo-copyteximage-simple fbo-copyteximage-simple.c)
diff --git a/tests/fbo/fbo-storage-completeness.c b/tests/fbo/fbo-storage-completeness.c
new file mode 100644
index 000000000..ecb41a99b
--- /dev/null
+++ b/tests/fbo/fbo-storage-completeness.c
@@ -0,0 +1,248 @@
+/*
+ * Copyright (c) 2011 VMware, Inc.
+ *
+ * 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.
+ */
+
+/*
+ * @file fbo-storage-formats.c
+ *
+ * Tests if glRenderbufferStorage() affects framebuffer completeness.
+ *
+ * Author:
+ *    Brian Paul
+ *    Marek Olšák
+ */
+
+#include "piglit-util.h"
+#include "piglit-framework.h"
+
+int piglit_width = 100;
+int piglit_height = 100;
+int piglit_window_mode = GLUT_RGB;
+
+static const char *TestName = "fbo-storage-formats";
+
+
+static void
+check_error(int line)
+{
+   GLenum err = glGetError();
+   if (err) {
+      printf("%s: Unexpected error 0x%x at line %d\n",
+              TestName, err, line);
+      piglit_report_result(PIGLIT_FAILURE);
+   }
+}
+
+
+#define EXT_packed_depth_stencil 1
+#define ARB_framebuffer_object 2
+#define ARB_texture_rg 3
+#define MAX_EXT 4
+
+static GLboolean HaveExtension[MAX_EXT];
+
+
+
+struct format_info
+{
+   GLenum format;
+   GLuint extension;
+};
+
+
+static const struct format_info Formats[] = {
+   { GL_RGB, 0 },
+   { GL_R3_G3_B2, 0 },
+   { GL_RGB4, 0 },
+   { GL_RGB5, 0 },
+   { GL_RGB8, 0 },
+   { GL_RGB10, 0 },
+   { GL_RGB12, 0 },
+   { GL_RGB16, 0 },
+   { GL_RGBA, 0 },
+   { GL_RGBA2, 0 },
+   { GL_RGBA4, 0 },
+   { GL_RGB5_A1, 0 },
+   { GL_RGBA8, 0 },
+   { GL_RGB10_A2, 0 },
+   { GL_RGBA12, 0 },
+   { GL_RGBA16, 0 },
+   { GL_STENCIL_INDEX, 0 },
+   { GL_STENCIL_INDEX1_EXT, 0 },
+   { GL_STENCIL_INDEX4_EXT, 0 },
+   { GL_STENCIL_INDEX8_EXT, 0 },
+   { GL_STENCIL_INDEX16_EXT, 0 },
+   { GL_DEPTH_COMPONENT, 0 },
+   { GL_DEPTH_COMPONENT16, 0 },
+   { GL_DEPTH_COMPONENT24, 0 },
+   { GL_DEPTH_COMPONENT32, 0 },
+
+   /* GL_ARB_framebuffer_object additions */
+   { GL_ALPHA, ARB_framebuffer_object },
+   { GL_ALPHA4, ARB_framebuffer_object },
+   { GL_ALPHA8, ARB_framebuffer_object },
+   { GL_ALPHA12, ARB_framebuffer_object },
+   { GL_ALPHA16, ARB_framebuffer_object },
+   { GL_LUMINANCE_ALPHA, ARB_framebuffer_object },
+   { GL_LUMINANCE, ARB_framebuffer_object },
+   { GL_INTENSITY, ARB_framebuffer_object },
+
+   /* GL_ARB_texture_rg */
+   { GL_RED, ARB_texture_rg },
+   { GL_R8, ARB_texture_rg },
+   { GL_R16, ARB_texture_rg },
+   { GL_RG, ARB_texture_rg },
+   { GL_RG8, ARB_texture_rg },
+   { GL_RG16, ARB_texture_rg },
+#if 0
+   /* XXX also depend on texture_float, texture_integer extensions */
+   { GL_R16F, ARB_texture_rg },
+   { GL_R32F, ARB_texture_rg },
+   { GL_RG16F, ARB_texture_rg },
+   { GL_RG32F, ARB_texture_rg },
+   { GL_R8I, ARB_texture_rg },
+   { GL_R8UI, ARB_texture_rg },
+   { GL_R16I, ARB_texture_rg },
+   { GL_R16UI, ARB_texture_rg },
+   { GL_R32I, ARB_texture_rg },
+   { GL_R32UI, ARB_texture_rg },
+   { GL_RG8I, ARB_texture_rg },
+   { GL_RG8UI, ARB_texture_rg },
+   { GL_RG16I, ARB_texture_rg },
+   { GL_RG16UI, ARB_texture_rg },
+   { GL_RG32I, ARB_texture_rg },
+   { GL_RG32UI, ARB_texture_rg },
+#endif
+
+   /* GL_EXT_packed_depth_stencil */
+   { GL_DEPTH_STENCIL_EXT, EXT_packed_depth_stencil },
+   { GL_DEPTH24_STENCIL8_EXT, EXT_packed_depth_stencil }
+};
+
+
+#define ELEMENTS(A) (sizeof(A) / sizeof(A[0]))
+
+
+static enum piglit_result
+test(void)
+{
+   GLuint fbo, rb;
+   int i;
+   int incomplete = -1, complete = -1;
+
+   /* clear out any errors */
+   while (glGetError())
+      ;
+
+   /* find a format which is incomplete */
+   for (i = 0; i < ELEMENTS(Formats); i++) {
+      if (!HaveExtension[Formats[i].extension])
+          continue;
+
+      glGenFramebuffersEXT(1, &fbo);
+      glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, fbo);
+      check_error(__LINE__);
+
+      glGenRenderbuffersEXT(1, &rb);
+      check_error(__LINE__);
+      glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, rb);
+
+      glFramebufferRenderbufferEXT(GL_FRAMEBUFFER_EXT,
+                                   GL_COLOR_ATTACHMENT0,
+                                   GL_RENDERBUFFER_EXT,
+                                   rb);
+      check_error(__LINE__);
+
+      glRenderbufferStorageEXT(GL_RENDERBUFFER_EXT, Formats[i].format,
+                               piglit_width, piglit_height);
+      if (glCheckFramebufferStatusEXT(GL_FRAMEBUFFER_EXT) == GL_FRAMEBUFFER_COMPLETE_EXT)
+         complete = i;
+      else
+         incomplete = i;
+
+      glDeleteFramebuffersEXT(1, &fbo);
+      glDeleteRenderbuffersEXT(1, &rb);
+
+      if (incomplete != -1 && complete != -1)
+         break;
+   }
+   if (complete == -1) {
+      printf("Found no renderbuffer format which is framebuffer complete.\n");
+      return PIGLIT_FAIL;
+   }
+   if (incomplete == -1)
+      return PIGLIT_PASS;
+
+   glGenFramebuffersEXT(1, &fbo);
+   glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, fbo);
+   check_error(__LINE__);
+
+   glGenRenderbuffersEXT(1, &rb);
+   check_error(__LINE__);
+   glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, rb);
+
+   glFramebufferRenderbufferEXT(GL_FRAMEBUFFER_EXT,
+                                GL_COLOR_ATTACHMENT0,
+                                GL_RENDERBUFFER_EXT,
+                                rb);
+   check_error(__LINE__);
+
+   glRenderbufferStorageEXT(GL_RENDERBUFFER_EXT, Formats[complete].format,
+                            piglit_width, piglit_height);
+   if (glCheckFramebufferStatusEXT(GL_FRAMEBUFFER_EXT) != GL_FRAMEBUFFER_COMPLETE_EXT) {
+      printf("The format which was previously framebuffer complete is now incomplete.\n");
+      return PIGLIT_FAIL;
+   }
+
+   glRenderbufferStorageEXT(GL_RENDERBUFFER_EXT, Formats[incomplete].format,
+                            piglit_width, piglit_height);
+   if (glCheckFramebufferStatusEXT(GL_FRAMEBUFFER_EXT) == GL_FRAMEBUFFER_COMPLETE_EXT) {
+      printf("The format which was previously framebuffer incomplete is now complete.\n");
+      return PIGLIT_FAIL;
+   }
+
+   glDeleteFramebuffersEXT(1, &fbo);
+   glDeleteRenderbuffersEXT(1, &rb);
+
+   return PIGLIT_PASS;
+}
+
+
+enum piglit_result
+piglit_display(void)
+{
+   return test();
+}
+
+
+void
+piglit_init(int argc, char**argv)
+{
+   piglit_require_extension("GL_EXT_framebuffer_object");
+
+   HaveExtension[0] = GL_TRUE;
+   HaveExtension[EXT_packed_depth_stencil] = glutExtensionSupported("GL_EXT_packed_depth_stencil");
+   HaveExtension[ARB_framebuffer_object] = glutExtensionSupported("GL_ARB_framebuffer_object");
+   HaveExtension[ARB_texture_rg] = glutExtensionSupported("GL_ARB_texture_rg");
+
+   piglit_ortho_projection(piglit_width, piglit_height, GL_FALSE);
+}