Exercises an NVIDIA driver bug.
---
tests/all.tests | 1 +
tests/texturing/CMakeLists.gl.txt | 1 +
tests/texturing/cubemap-getteximage-pbo.c | 157 +++++++++++++++++++++++++++++
3 files changed, 159 insertions(+)
create mode 100644 tests/texturing/cubemap-getteximage-pbo.c
diff --git a/tests/all.tests b/tests/all.tests
index 2447065..1e632e7 100644
--- a/tests/all.tests
+++ b/tests/all.tests
@@ -2098,6 +2098,7 @@ spec['ARB_texture_cube_map'] = arb_texture_cube_map
add_msaa_visual_plain_tests(arb_texture_cube_map, 'copyteximage CUBE')
add_plain_test(arb_texture_cube_map, 'crash-cubemap-order')
add_plain_test(arb_texture_cube_map, 'cubemap')
+add_concurrent_test(arb_texture_cube_map, 'cubemap-getteximage-pbo')
arb_texture_cube_map['cubemap npot'] = PlainExecTest(['cubemap', '-auto',
'npot'])
add_plain_test(arb_texture_cube_map, 'cubemap-shader')
arb_texture_cube_map['cubemap-shader lod'] = PlainExecTest(['cubemap-shader',
'-auto', 'lod'])
diff --git a/tests/texturing/CMakeLists.gl.txt
b/tests/texturing/CMakeLists.gl.txt
index 0534c88..cf8e3c5 100644
--- a/tests/texturing/CMakeLists.gl.txt
+++ b/tests/texturing/CMakeLists.gl.txt
@@ -20,6 +20,7 @@ piglit_add_executable (copyteximage-border
copyteximage-border.c)
piglit_add_executable (copyteximage-clipping copyteximage-clipping.c)
piglit_add_executable (crossbar crossbar.c)
piglit_add_executable (cubemap cubemap.c)
+piglit_add_executable (cubemap-getteximage-pbo cubemap-getteximage-pbo.c)
piglit_add_executable (cubemap-shader cubemap-shader.c)
piglit_add_executable (depth-level-clamp depth-level-clamp.c)
piglit_add_executable (depthstencil-render-miplevels
depthstencil-render-miplevels.cpp)
diff --git a/tests/texturing/cubemap-getteximage-pbo.c
b/tests/texturing/cubemap-getteximage-pbo.c
new file mode 100644
index 0000000..85e8c52
--- /dev/null
+++ b/tests/texturing/cubemap-getteximage-pbo.c
@@ -0,0 +1,157 @@
+/*
+ * Copyright (c) 2013 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
+ * on the rights to use, copy, modify, merge, publish, distribute, sub
+ * license, 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
+ * NON-INFRINGEMENT. IN NO EVENT SHALL VMWARE AND/OR THEIR SUPPLIERS
+ * 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.
+ */
+
+
+/**
+ * This test exercises an NVIDIA driver bug where using glGetTexImage
+ * to read a cubemap face into a PBO fails. It appears that glGetTexImage
+ * always reads from the +X face.
+ */
+
+
+#include "piglit-util-gl-common.h"
+
+PIGLIT_GL_TEST_CONFIG_BEGIN
+ config.supports_gl_compat_version = 15;
+ config.window_visual = PIGLIT_GL_VISUAL_RGBA;
+PIGLIT_GL_TEST_CONFIG_END
+
+
+#define NUMCOLORS 7
+#define TEX_WIDTH 32
+#define TEX_HEIGHT 32
+#define TEX_NUMPIXELS (TEX_WIDTH * TEX_HEIGHT)
+
+
+static const GLuint Colors[NUMCOLORS] = {
+ 0xFF0000FF, /* red */
+ 0x00FF00FF, /* green */
+ 0x0000FFFF, /* blue */
+ 0x00FFFFFF, /* cyan */
+ 0xFF00FFFF, /* magenta */
+ 0xFFFF00FF, /* yellow */
+ 0x7F7F7FFF, /* gray */
+};
+
+
+/**
+ * Test one cube map face to see if glGetTexImage from a cube face into
+ * a PBO works correctly.
+ */
+static bool
+test_face(GLuint face)
+{
+ const GLenum cubeFaceTarget = GL_TEXTURE_CUBE_MAP_POSITIVE_X + face;
+ const GLuint expectedColor = Colors[face];
+ GLuint texData[TEX_NUMPIXELS];
+ GLuint cubeTex, fbo, packPBO;
+ GLuint f, i;
+ void *ptr;
+
+ /* Create the cubemap texture. */
+ glGenTextures(1, &cubeTex);
+ glActiveTextureARB(GL_TEXTURE0);
+ glBindTexture(GL_TEXTURE_CUBE_MAP, cubeTex);
+ glPixelStorei(GL_UNPACK_ROW_LENGTH, TEX_WIDTH);
+ glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
+ for (f = 0; f < 6; ++f) {
+ for (i = 0; i < TEX_NUMPIXELS; ++i) {
+ texData[i] = Colors[f];
+ }
+ glTexImage2D(GL_TEXTURE_CUBE_MAP_POSITIVE_X + f, 0,
+ GL_SRGB8_ALPHA8, TEX_WIDTH, TEX_HEIGHT, 0, GL_BGRA,
+ GL_UNSIGNED_INT_8_8_8_8_REV, texData);
+ }
+
+ /* Setup the FBO. */
+ glGenFramebuffers(1, &fbo);
+ glBindFramebuffer(GL_FRAMEBUFFER, fbo);
+ glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0,
+ cubeFaceTarget, cubeTex, 0);
+ if (glCheckFramebufferStatus(GL_FRAMEBUFFER) !=
+ GL_FRAMEBUFFER_COMPLETE) {
+ printf("Incomplete framebuffer object\n");
+ return false;
+ }
+ glDrawBuffer(GL_COLOR_ATTACHMENT0);
+
+ /* Read back cubemap face into PBO */
+ glGenBuffers(1, &packPBO);
+ glBindBuffer(GL_PIXEL_PACK_BUFFER, packPBO);
+ glBufferData(GL_PIXEL_PACK_BUFFER, TEX_NUMPIXELS * sizeof(GLuint),
+ NULL, GL_STREAM_READ);
+ glPixelStorei(GL_PACK_ROW_LENGTH, TEX_WIDTH);
+ glPixelStorei(GL_PACK_ALIGNMENT, 1);
+ glGetTexImage(cubeFaceTarget, 0, GL_BGRA, GL_UNSIGNED_INT_8_8_8_8_REV,
+ NULL);
+
+ /* Map pack PBO to get results. */
+ ptr = glMapBuffer(GL_PIXEL_PACK_BUFFER, GL_READ_ONLY);
+ if (!ptr) {
+ printf("failed to map PBO\n");
+ return false;
+ }
+ for (i = 0; i < TEX_NUMPIXELS; ++i) {
+ texData[i] = Colors[6]; /* gray */
+ }
+
+ memcpy(texData, ptr, TEX_NUMPIXELS * sizeof(GLuint));
+
+ glUnmapBuffer(GL_PIXEL_PACK_BUFFER);
+
+ if (expectedColor != texData[0]) {
+ printf("Colors don't match for face %u\n", face);
+ printf("Expected 0x%08x but found 0x%08x \n",
+ expectedColor, texData[0]);
+ return false;
+ }
+
+ glDeleteTextures(1, &cubeTex);
+ glDeleteFramebuffers(1, &fbo);
+ glDeleteBuffers(1, &packPBO);
+
+ /* if we get here we passed */
+ return true;
+}
+
+
+enum piglit_result
+piglit_display(void)
+{
+ GLuint i;
+ bool pass = true;
+ for (i = 0; i < 6; i++) {
+ pass = test_face(i) && pass;
+ }
+ return pass ? PIGLIT_PASS : PIGLIT_FAIL;
+}
+
+
+void
+piglit_init(int argc, char *argv[])
+{
+ piglit_require_extension("GL_ARB_texture_cube_map");
+ piglit_require_extension("GL_ARB_pixel_buffer_object");
+ piglit_require_extension("GL_ARB_framebuffer_object");
+}
--
1.7.10.4
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