copyteximage-clipping: test clipping of glCopyTexImage2D()

3 files changed, 77 insertions, 0 deletions

diff --git a/tests/all.tests b/tests/all.tests
index f11db7fb9..cc6c684db 100644
--- a/tests/all.tests
+++ b/tests/all.tests
@@ -566,6 +566,7 @@ glx['glx-pixmap-crosscheck'].runConcurrent = True
 texturing = Group()
 add_plain_test(texturing, 'array-texture')
 add_plain_test(texturing, 'copytexsubimage')
+add_plain_test(texturing, 'copyteximage-clipping')
 add_plain_test(texturing, 'cubemap')
 add_plain_test(texturing, 'depth-level-clamp')
 add_plain_test(texturing, 'depth-tex-modes')
diff --git a/tests/texturing/CMakeLists.gl.txt b/tests/texturing/CMakeLists.gl.txt
index 360c1c863..7c67ed441 100644
--- a/tests/texturing/CMakeLists.gl.txt
+++ b/tests/texturing/CMakeLists.gl.txt
@@ -15,6 +15,7 @@ link_libraries (
 
 add_executable (array-texture array-texture.c)
 add_executable (copytexsubimage copytexsubimage.c)
+add_executable (copyteximage-clipping copyteximage-clipping.c)
 IF(${CMAKE_SYSTEM_NAME} MATCHES "Linux")
 	add_executable (crossbar crossbar.c)
 ENDIF(${CMAKE_SYSTEM_NAME} MATCHES "Linux")
@@ -56,6 +57,7 @@ add_executable (teximage-errors teximage-errors.c)
 add_executable (texrect-many texrect-many.c)
 add_executable (texredefine texredefine.c)
 add_executable (texture-packed-formats texture-packed-formats.c)
+add_executable (texture-buffer-object texture-buffer-object.c)
 add_executable (texture-integer texture-integer.c)
 add_executable (depth-tex-modes      depth-tex-modes.c depth-tex-modes-common.c)
 add_executable (depth-tex-modes-rg   depth-tex-modes-rg.c depth-tex-modes-common.c)
diff --git a/tests/texturing/copyteximage-clipping.c b/tests/texturing/copyteximage-clipping.c
new file mode 100644
index 000000000..3e7b3bce1
--- /dev/null
+++ b/tests/texturing/copyteximage-clipping.c
@@ -0,0 +1,74 @@
+/*
+ * Copyright 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.
+ */
+
+/**
+ * Try copying a large texture image from a small window.  The driver will
+ * have to do some clipping to avoid reading out of bounds.
+ * XXX we should also do some rendering with the texture and check the results.
+ */
+
+#include "piglit-util.h"
+
+int piglit_width = 100, piglit_height = 100;
+int piglit_window_mode = GLUT_DOUBLE | GLUT_RGB;
+
+
+static GLboolean
+test(void)
+{
+   const int texWidth = 512, texHeight = 512;
+   int i;
+
+   for (i = 0; i < 20; i++) {
+      int x = rand() % 300 - 100;
+      int y = rand() % 300 - 100;
+      int w, h;
+
+      glCopyTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, x, y,
+                       texWidth, texHeight, 0);
+
+      glGetTexLevelParameteriv(GL_TEXTURE_2D, 0, GL_TEXTURE_WIDTH, &w);
+      glGetTexLevelParameteriv(GL_TEXTURE_2D, 0, GL_TEXTURE_HEIGHT, &h);
+      if (w != texWidth || h != texHeight)
+         return GL_FALSE;
+   }
+
+   return GL_TRUE;
+}
+
+
+enum piglit_result
+piglit_display(void)
+{
+   if (test())
+      return PIGLIT_PASS;
+   else
+      return PIGLIT_FAIL;
+}
+
+
+void
+piglit_init(int argc, char **argv)
+{
+
+}