From: Ian Romanick <[email protected]>

Depending on the GL version and extensions supported, this should either
work (not generate a GL error) or generate a variety of GL errors.

This test passes on NVIDIA (304.64 on GTX 260).  This driver exposes
OpenGL 3.3 and GL_ARB_texture_storage.

This test fails on current Mesa on drivers that support depth textures.
the glTexImage3D(GL_TEXTURE_3D) tests generate GL_INVALID_ENUM instead
of GL_INVALID_OPERATION.  The glTexStorage3D(GL_TEXTURE_3D) test
doesn't generate an error, but it should generate GL_INVALID_OPERATION.

Signed-off-by: Ian Romanick <[email protected]>
---
 tests/all.tests                                    |   1 +
 .../ext_packed_depth_stencil/CMakeLists.gl.txt     |   1 +
 .../depth-stencil-texture.c                        | 245 +++++++++++++++++++++
 3 files changed, 247 insertions(+)
 create mode 100644 tests/spec/ext_packed_depth_stencil/depth-stencil-texture.c

diff --git a/tests/all.tests b/tests/all.tests
index 091a2e5..fa25c6c 100644
--- a/tests/all.tests
+++ b/tests/all.tests
@@ -2136,6 +2136,7 @@ add_depthstencil_render_miplevels_tests(
          's=z24_s8_d=z24_s8', 's=z24_s8_d=z24', 'd=s=z24_s8', 's=d=z24_s8',
          'ds=z24_s8'))
 ext_packed_depth_stencil['fbo-clear-formats stencil'] = 
concurrent_test('fbo-clear-formats GL_EXT_packed_depth_stencil stencil')
+ext_packed_depth_stencil['DEPTH_STENCIL texture'] = 
concurrent_test('ext_packed_depth_stencil-depth-stencil-texture')
 
 ext_texture_array = Group()
 spec['EXT_texture_array'] = ext_texture_array
diff --git a/tests/spec/ext_packed_depth_stencil/CMakeLists.gl.txt 
b/tests/spec/ext_packed_depth_stencil/CMakeLists.gl.txt
index 22d6f34..2f47328 100644
--- a/tests/spec/ext_packed_depth_stencil/CMakeLists.gl.txt
+++ b/tests/spec/ext_packed_depth_stencil/CMakeLists.gl.txt
@@ -9,6 +9,7 @@ link_libraries (
        ${OPENGL_glu_LIBRARY}
 )
 
+piglit_add_executable (ext_packed_depth_stencil-depth-stencil-texture 
depth-stencil-texture.c)
 piglit_add_executable (ext_packed_depth_stencil-readpixels-24_8 
readpixels-24_8.c)
 
 # vim: ft=cmake:
diff --git a/tests/spec/ext_packed_depth_stencil/depth-stencil-texture.c 
b/tests/spec/ext_packed_depth_stencil/depth-stencil-texture.c
new file mode 100644
index 0000000..c641772
--- /dev/null
+++ b/tests/spec/ext_packed_depth_stencil/depth-stencil-texture.c
@@ -0,0 +1,245 @@
+/*
+ * Copyright © 2011 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.
+ */
+
+/**
+ * \file negative-texture
+ * Create a depth-stencil texture when ARB_depth_texture is not supported.
+ *
+ * The EXT_packed_depth_stencil spec neglects to mention an interaction
+ * (though the header of the spec says "ARB_depth_texture affects the
+ * definition of this extension."), but ARB_framebuffer_object, which includes
+ * EXT_packed_depth_stencil functionality says:
+ *
+ *     "If ARB_depth_texture or SGIX_depth_texture is supported,
+ *     GL_DEPTH_STENCIL/GL_UNSIGNED_INT_24_8 data can also be used for
+ *     textures;"
+ *
+ * In cases where neither ARB_depth_texture nor SGIX_depth_texture is
+ * supported, trying to create a texture with a depth-stencil format should
+ * generate an error.
+ */
+
+#include "piglit-util-gl-common.h"
+
+PIGLIT_GL_TEST_CONFIG_BEGIN
+
+       config.supports_gl_compat_version = 12;
+       config.supports_gl_core_version = 31;
+
+       config.window_visual = PIGLIT_GL_VISUAL_RGBA;
+
+PIGLIT_GL_TEST_CONFIG_END
+
+static bool has_texture_cube_map = false;
+static bool has_depth_texture_cube_map = false;
+static bool has_depth_texture = false;
+
+static bool
+try_TexImage(GLenum internalFormat)
+{
+       bool pass = true;
+       GLuint tex[4];
+
+       const GLenum expected_error = has_depth_texture
+               ? GL_NO_ERROR : GL_INVALID_VALUE;
+
+       const GLenum expected_3D_error = has_depth_texture
+               ? GL_INVALID_OPERATION : GL_INVALID_VALUE;
+
+       const GLenum expected_cube_error = has_depth_texture_cube_map
+               ? GL_NO_ERROR : expected_3D_error;
+
+       printf("Testing glTexImage with %s...\n",
+              piglit_get_gl_enum_name(internalFormat));
+
+       glGenTextures(ARRAY_SIZE(tex), tex);
+
+       glBindTexture(GL_TEXTURE_1D, tex[0]);
+       glTexImage1D(GL_TEXTURE_1D, 0, internalFormat,
+                    16, 0,
+                    GL_DEPTH_STENCIL, GL_UNSIGNED_INT_24_8, NULL);
+       pass = piglit_check_gl_error(expected_error) && pass;
+
+
+       glBindTexture(GL_TEXTURE_2D, tex[1]);
+       glTexImage2D(GL_TEXTURE_2D, 0, internalFormat,
+                    16, 16, 0,
+                    GL_DEPTH_STENCIL, GL_UNSIGNED_INT_24_8, NULL);
+       pass = piglit_check_gl_error(expected_error) && pass;
+
+
+       /* Section 3.8.1 (Texture Image Specification) of the OpenGL 2.1 spec
+        * says:
+        *
+        *     "Textures with a base internal format of DEPTH_COMPONENT are
+        *     supported by texture image specification commands only if
+        *     target is TEXTURE_1D, TEXTURE_2D, PROXY_TEXTURE_1D or
+        *     PROXY_TEXTURE_2D. Using this format in conjunction with any
+        *     other target will result in an INVALID_OPERATION error."
+        *
+        * The OpenGL 4.4 spec lists the same error, but it greatly expands
+        * the list of valid texture targets.
+        */
+       glBindTexture(GL_TEXTURE_3D, tex[2]);
+       glTexImage3D(GL_TEXTURE_3D, 0, internalFormat,
+                    8, 8, 8, 0,
+                    GL_DEPTH_STENCIL, GL_UNSIGNED_INT_24_8, NULL);
+       pass = piglit_check_gl_error(expected_3D_error) && pass;
+
+       if (has_texture_cube_map) {
+               unsigned i;
+
+               glBindTexture(GL_TEXTURE_CUBE_MAP, tex[3]);
+
+               for (i = 0; i < 6; i++) {
+                       glTexImage2D(GL_TEXTURE_CUBE_MAP_POSITIVE_X + i,
+                                    0, internalFormat,
+                                    16, 16, 0,
+                                    GL_DEPTH_STENCIL, GL_UNSIGNED_INT_24_8,
+                                    NULL);
+                       pass = piglit_check_gl_error(expected_cube_error)
+                               && pass;
+               }
+       }
+
+       glBindTexture(GL_TEXTURE_1D, 0);
+       glBindTexture(GL_TEXTURE_2D, 0);
+       glBindTexture(GL_TEXTURE_3D, 0);
+       if (has_texture_cube_map)
+               glBindTexture(GL_TEXTURE_CUBE_MAP, 0);
+
+       glDeleteTextures(ARRAY_SIZE(tex), tex);
+
+       printf("Done.\n\n");
+
+       return pass;
+}
+
+static bool
+try_TexStorage(GLenum internalFormat)
+{
+       bool pass = true;
+       GLuint tex[4];
+
+       GLenum expected_error;
+       GLenum expected_3D_error;
+       GLenum expected_cube_error;
+
+       /* The GL_ARB_texture_storage spec says:
+        *
+        *     "- If <internalformat> is one of the internal formats listed in
+        *      table 3.11, an INVALID_ENUM error is generated."
+        *
+        * Table 3.11 lists the unsized formats, including GL_DEPTH_STENCIL.
+        */
+       if (internalFormat == GL_DEPTH_STENCIL) {
+               expected_error = has_depth_texture
+                       ? GL_INVALID_ENUM : GL_INVALID_VALUE;
+               expected_3D_error = has_depth_texture
+                       ? GL_INVALID_ENUM : GL_INVALID_VALUE;
+               expected_cube_error = has_depth_texture_cube_map
+                       ? GL_INVALID_ENUM : GL_INVALID_VALUE;
+       } else {
+               expected_error = has_depth_texture
+                       ? GL_NO_ERROR : GL_INVALID_VALUE;
+               expected_3D_error = has_depth_texture
+                       ? GL_INVALID_OPERATION : GL_INVALID_VALUE;
+               expected_cube_error = has_depth_texture_cube_map
+                       ? GL_NO_ERROR : expected_3D_error;
+       }
+
+       printf("Testing glTexStorage with %s...\n",
+              piglit_get_gl_enum_name(internalFormat));
+
+       glGenTextures(ARRAY_SIZE(tex), tex);
+
+       glBindTexture(GL_TEXTURE_1D, tex[0]);
+       glTexStorage1D(GL_TEXTURE_1D, 1, internalFormat, 16);
+       pass = piglit_check_gl_error(expected_error) && pass;
+
+       glBindTexture(GL_TEXTURE_2D, tex[1]);
+       glTexStorage2D(GL_TEXTURE_2D, 1, internalFormat, 16, 16);
+       pass = piglit_check_gl_error(expected_error) && pass;
+
+       glBindTexture(GL_TEXTURE_3D, tex[2]);
+       glTexStorage3D(GL_TEXTURE_3D, 1, internalFormat, 8, 8, 8);
+       pass = piglit_check_gl_error(expected_3D_error) && pass;
+
+       if (has_texture_cube_map) {
+               glBindTexture(GL_TEXTURE_CUBE_MAP, tex[3]);
+               glTexStorage2D(GL_TEXTURE_CUBE_MAP, 1, internalFormat, 16, 16);
+               pass = piglit_check_gl_error(expected_cube_error) && pass;
+       }
+
+       glBindTexture(GL_TEXTURE_1D, 0);
+       glBindTexture(GL_TEXTURE_2D, 0);
+       glBindTexture(GL_TEXTURE_3D, 0);
+       if (has_texture_cube_map)
+               glBindTexture(GL_TEXTURE_CUBE_MAP, 0);
+
+       glDeleteTextures(ARRAY_SIZE(tex), tex);
+
+       printf("Done.\n\n");
+
+       return pass;
+}
+
+void piglit_init(int argc, char **argv)
+{
+       bool pass = true;
+
+       if (piglit_get_gl_version() < 30
+           && !piglit_is_extension_supported("GL_EXT_packed_depth_stencil")
+           && !piglit_is_extension_supported("GL_ARB_framebuffer_object")) {
+               printf("OpenGL 3.0, GL_EXT_packed_depth_stencil, or "
+                      "GL_ARB_framebuffer_object is required.\n");
+               piglit_report_result(PIGLIT_SKIP);
+       }
+
+       has_depth_texture = piglit_get_gl_version() >= 14
+               || piglit_is_extension_supported("GL_ARB_depth_texture")
+               || piglit_is_extension_supported("GL_SGIX_depth_texture");
+
+       has_texture_cube_map = piglit_get_gl_version() >= 13
+               || piglit_is_extension_supported("GL_ARB_texture_cube_map");
+
+       has_depth_texture_cube_map = piglit_get_gl_version() >= 30
+               || piglit_is_extension_supported("GL_EXT_gpu_shader4");
+
+       pass = try_TexImage(GL_DEPTH_STENCIL) && pass;
+       pass = try_TexImage(GL_DEPTH24_STENCIL8) && pass;
+
+       if (piglit_is_extension_supported("GL_ARB_texture_storage")) {
+               pass = try_TexStorage(GL_DEPTH_STENCIL) && pass;
+               pass = try_TexStorage(GL_DEPTH24_STENCIL8) && pass;
+       }
+
+       piglit_report_result(pass ? PIGLIT_PASS : PIGLIT_FAIL);
+}
+
+enum piglit_result
+piglit_display(void)
+{
+       /* UNREACHED */
+       return PIGLIT_FAIL;
+}
-- 
1.8.1.4

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