diff options
Diffstat (limited to 'tests/spec/ext_texture_array')
| -rw-r--r-- | tests/spec/ext_texture_array/CMakeLists.gl.txt | 1 | ||||
| -rw-r--r-- | tests/spec/ext_texture_array/gen-mipmap.c | 137 |
2 files changed, 138 insertions, 0 deletions
diff --git a/tests/spec/ext_texture_array/CMakeLists.gl.txt b/tests/spec/ext_texture_array/CMakeLists.gl.txt index 5b109622d..048e0d334 100644 --- a/tests/spec/ext_texture_array/CMakeLists.gl.txt +++ b/tests/spec/ext_texture_array/CMakeLists.gl.txt @@ -11,3 +11,4 @@ link_libraries ( piglit_add_executable (ext_texture_array-maxlayers maxlayers.c) piglit_add_executable (ext_texture_array-compressed compressed.c) +piglit_add_executable (ext_texture_array-gen-mipmap gen-mipmap.c) diff --git a/tests/spec/ext_texture_array/gen-mipmap.c b/tests/spec/ext_texture_array/gen-mipmap.c new file mode 100644 index 000000000..f0a306f71 --- /dev/null +++ b/tests/spec/ext_texture_array/gen-mipmap.c @@ -0,0 +1,137 @@ +/* + * Copyright (c) 2013 VMware, Inc. + * + * Permission is hereby, 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. + */ + +/** + * Test glGenerateMipmaps with a texture array. + * In particular, test with texture compression to expose a Mesa bug. + * See https://bugs.freedesktop.org/show_bug.cgi?id=66850 + * + * Brian Paul + * 24 July 2013 + */ + + +#include "piglit-util-gl-common.h" + +PIGLIT_GL_TEST_CONFIG_BEGIN + config.supports_gl_compat_version = 10; + config.window_visual = PIGLIT_GL_VISUAL_DOUBLE | PIGLIT_GL_VISUAL_RGBA; +PIGLIT_GL_TEST_CONFIG_END + + +/* texture size */ +#define WIDTH 128 +#define HEIGHT 64 +#define DEPTH 3 +#define BPP 4 /* GL_RGBA/ubyte */ + + +static bool +run_test(GLenum internalFormat) +{ + unsigned char *buf, *buf2; + int level; + GLuint tex; + bool pass = true; + + buf = malloc(WIDTH * HEIGHT * DEPTH * BPP); + buf2 = malloc(WIDTH * HEIGHT * DEPTH * BPP); + + /* Create 2D array texture */ + memset(buf, 255, WIDTH * HEIGHT * DEPTH * BPP); /* white */ + glGenTextures(1, &tex); + glBindTexture(GL_TEXTURE_2D_ARRAY, tex); + glTexImage3D(GL_TEXTURE_2D_ARRAY, 0, + internalFormat, + WIDTH, HEIGHT, DEPTH, 0, + GL_RGBA, GL_UNSIGNED_BYTE, + buf); + + glGenerateMipmap(GL_TEXTURE_2D_ARRAY); + + /* now read back texture images and test */ + for (level = 0; (WIDTH >> level) > 0; level++) { + int x, y, z, level_size, row_len; + + memset(buf2, 0, WIDTH * HEIGHT * DEPTH * BPP); + + glGetTexImage(GL_TEXTURE_2D_ARRAY, level, + GL_RGBA, GL_UNSIGNED_BYTE, buf2); + + /* test center texel */ + x = (WIDTH >> level) / 2; + y = (HEIGHT >> level) / 2; + + level_size = (WIDTH >> level) * (HEIGHT >> level) * BPP; + row_len = (WIDTH >> level) * BPP; + + for (z = 0; z < DEPTH; z++) { + int pos = z * level_size + y * row_len + x * BPP; + + if (buf2[pos + 0] != 255 || + buf2[pos + 1] != 255 || + buf2[pos + 2] != 255 || + buf2[pos + 3] != 255) { + printf("Probe at level %d, x %d, y %d, z %d = " + " (%u, %u, %u, %u)," + " expected (255,255,255,255)\n", + level, x, y, z, + buf2[pos + 0], + buf2[pos + 1], + buf2[pos + 2], + buf2[pos + 3]); + printf("Internal tex format %s\n", + piglit_get_gl_enum_name(internalFormat)); + pass = false; + break; + } + } + } + + free(buf); + free(buf2); + + return pass; +} + + +enum piglit_result +piglit_display(void) +{ + bool pass = true; + + pass = run_test(GL_RGBA) && pass; + if (piglit_is_extension_supported("GL_ARB_texture_compression")) { + pass = run_test(GL_COMPRESSED_RGBA) && pass; + pass = run_test(GL_COMPRESSED_RGB) && pass; + } + + return pass ? PIGLIT_PASS : PIGLIT_FAIL; +} + + +void +piglit_init(int argc, char **argv) +{ + piglit_require_extension("GL_EXT_texture_array"); +} |