diff options
author | Brian Paul <brianp@vmware.com> | 2012-06-27 16:27:52 -0600 |
---|---|---|
committer | Brian Paul <brianp@vmware.com> | 2012-06-28 12:45:55 -0600 |
commit | a6d64f3869f9f9353e0ae1030fb887f673f16f12 (patch) | |
tree | fe952f42328d50193882be672c50c33ff61ed0c2 /tests/security | |
parent | 4a14d11dbaced794fd8a9468e0d5c28c82a762ca (diff) |
security/initialized-fbo: test contents of uninitialized renderbuffers
Reviewed-by: José Fonseca <jfonseca@vmware.com>
Diffstat (limited to 'tests/security')
-rw-r--r-- | tests/security/CMakeLists.gl.txt | 1 | ||||
-rw-r--r-- | tests/security/initialized-fbo.c | 110 |
2 files changed, 111 insertions, 0 deletions
diff --git a/tests/security/CMakeLists.gl.txt b/tests/security/CMakeLists.gl.txt index bddd5916..072a050f 100644 --- a/tests/security/CMakeLists.gl.txt +++ b/tests/security/CMakeLists.gl.txt @@ -12,5 +12,6 @@ link_libraries ( piglit_add_executable (initialized-texmemory initialized-texmemory.c) +piglit_add_executable (initialized-fbo initialized-fbo.c) # vim: ft=cmake: diff --git a/tests/security/initialized-fbo.c b/tests/security/initialized-fbo.c new file mode 100644 index 00000000..3ad59900 --- /dev/null +++ b/tests/security/initialized-fbo.c @@ -0,0 +1,110 @@ +/* + * Copyright © 2012 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. + */ + +/** + * Test that FBO memory is initialized to a constant color and not stale + * data that may show old contents of VRAM. + * + * To pass this test an OpenGL implementation should initialize the + * contents of the new buffer to some fixed value (like all zeros). + * But since that's not spec'd by OpenGL, we only return WARN instead of + * FAIL if that's not the case. + * + * Brian Paul + * June 2012 + */ + +#include "piglit-util.h" + +PIGLIT_GL_TEST_MAIN( + 512 /*window_width*/, + 512 /*window_height*/, + GLUT_RGB | GLUT_DOUBLE) + + +static GLuint fbo, rb; + + +enum piglit_result +piglit_display(void) +{ + GLfloat firstPixel[4]; + bool pass = true; + + /* read from fbo, draw to window */ + glBindFramebuffer(GL_READ_FRAMEBUFFER, fbo); + glReadBuffer(GL_COLOR_ATTACHMENT0); + glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0); + glDrawBuffer(GL_BACK); + + /* init color buffer to red */ + glClearColor(1, 0, 0, 1); + glClear(GL_COLOR_BUFFER_BIT); + + /* copy (undefined) fbo image to window */ + glWindowPos2i(0, 0); + glCopyPixels(0, 0, piglit_width, piglit_height, GL_COLOR); + + glBindFramebuffer(GL_READ_FRAMEBUFFER, 0); + glReadBuffer(GL_BACK); + + glReadPixels(0, 0, 1, 1, GL_RGBA, GL_FLOAT, firstPixel); + pass = piglit_probe_rect_rgb(0, 0, piglit_width, piglit_height, + firstPixel); + + piglit_present_results(); + + return pass ? PIGLIT_PASS : PIGLIT_WARN; +} + + +void +piglit_init(int argc, char **argv) +{ + piglit_require_extension("GL_ARB_framebuffer_object"); + + glGenFramebuffers(1, &fbo); + glBindFramebuffer(GL_FRAMEBUFFER, fbo); + glGenRenderbuffers(1, &rb); + glBindRenderbuffer(GL_RENDERBUFFER, rb); + glRenderbufferStorage(GL_RENDERBUFFER, GL_RGBA, + piglit_width, piglit_height); + glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, + GL_RENDERBUFFER, rb); + + if (!piglit_check_gl_error(GL_NO_ERROR)) { + printf("fbo creation error\n"); + piglit_report_result(PIGLIT_FAIL); + return; + } + + if (glCheckFramebufferStatus(GL_FRAMEBUFFER) != + GL_FRAMEBUFFER_COMPLETE) { + printf("fbo incomplete\n"); + piglit_report_result(PIGLIT_FAIL); + return; + } + + piglit_ortho_projection(piglit_width, piglit_height, GL_FALSE); + glViewport(0, 0, piglit_width, piglit_height); +} |