[Piglit] [PATCH 3/4] arb_texture_stencil8: add basic get teximage

[Dave Airlie]

This just tests the get tex image path works okay for stencil8 textures.

Signed-off-by: Dave Airlie <airlied at redhat.com>
---
 tests/spec/arb_texture_stencil8/CMakeLists.gl.txt |  1 +
 tests/spec/arb_texture_stencil8/getteximage.c     | 98 +++++++++++++++++++++++
 2 files changed, 99 insertions(+)
 create mode 100644 tests/spec/arb_texture_stencil8/getteximage.c

diff --git a/tests/spec/arb_texture_stencil8/CMakeLists.gl.txt b/tests/spec/arb_texture_stencil8/CMakeLists.gl.txt
index 65e6c19..4d16073 100644
--- a/tests/spec/arb_texture_stencil8/CMakeLists.gl.txt
+++ b/tests/spec/arb_texture_stencil8/CMakeLists.gl.txt
@@ -11,5 +11,6 @@ link_libraries (
 
 piglit_add_executable (arb_texture_stencil8-stencil-texture stencil-texture.c)
 piglit_add_executable (arb_texture_stencil8-draw draw.c)
+piglit_add_executable (arb_texture_stencil8-getteximage getteximage.c)
 
 # vim: ft=cmake:
diff --git a/tests/spec/arb_texture_stencil8/getteximage.c b/tests/spec/arb_texture_stencil8/getteximage.c
new file mode 100644
index 0000000..09e81de
--- /dev/null
+++ b/tests/spec/arb_texture_stencil8/getteximage.c
@@ -0,0 +1,98 @@
+/*
+ * Copyright © 2014 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 getteximage.c
+ *
+ * Test glGetTexImage with stencil formats.
+ */
+
+#include "piglit-util-gl.h"
+
+PIGLIT_GL_TEST_CONFIG_BEGIN
+	config.supports_gl_compat_version = 12;
+	config.window_visual = PIGLIT_GL_VISUAL_RGBA;
+PIGLIT_GL_TEST_CONFIG_END
+
+
+#define WIDTH 16
+#define HEIGHT 16
+
+static bool
+test_s8(void)
+{
+	GLubyte tex[WIDTH * HEIGHT];
+	GLubyte buf[WIDTH * HEIGHT];
+	GLuint i;
+
+	/* init tex data */
+	for (i = 0; i < WIDTH * HEIGHT; i++) {
+		GLuint s = 255 - (i & 255);
+		tex[i] = s;
+	}
+
+	/* create texture */
+	glTexImage2D(GL_TEXTURE_2D, 0, GL_STENCIL_INDEX8,
+		     WIDTH, HEIGHT, 0,
+		     GL_STENCIL_INDEX, GL_UNSIGNED_BYTE, tex);
+	if (!piglit_check_gl_error(GL_NO_ERROR))
+		return false;
+
+	/* read back the texture */
+	glGetTexImage(GL_TEXTURE_2D, 0,
+		      GL_STENCIL_INDEX, GL_UNSIGNED_BYTE, buf);
+	if (!piglit_check_gl_error(GL_NO_ERROR))
+		return false;
+
+	/* compare */
+	for (i = 0; i < WIDTH * HEIGHT; i++) {
+		if (buf[i] != tex[i]) {
+			printf("Wrong texel data at position %d: "
+			       "Expected 0x%08x, found 0x%08x\n",
+			       i, tex[i], buf[i]);
+			return false;
+		}
+	}
+
+	return true;
+}
+
+void
+piglit_init(int argc, char **argv)
+{
+	bool pass;
+
+	piglit_require_extension("GL_ARB_texture_stencil8");
+
+	pass = test_s8();
+
+	piglit_report_result(pass ? PIGLIT_PASS : PIGLIT_FAIL);
+}
+
+
+enum piglit_result
+piglit_display(void)
+{
+	/* unused */
+	return PIGLIT_FAIL;
+}
-- 
2.3.4