Attachment 55098 Details for Bug 44436 – New piglit case to reproduce this regression

New piglit case to reproduce this regression

fbo-copyteximage-depth-max.c (text/plain), 3.40 KB, created by Shuang He on 2012-01-03 22:14:57 UTC

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Creator: Shuang He

Created: 2012-01-03 22:14:57 UTC

Size: 3.40 KB

patch

obsolete

>/*
> * Copyright Â© 2009 Intel Corporation
> * Copyright Â© 2010 Red Hat, 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.
> *
> * Authors:
> *    Shuang He <shuang.he@intel.com>
> *
> */
>
>/** @file fbo-copytex-depth-max.c
> *
> * Tests that glCopyTexImage2D can be used to copy from fbo with max supported size
> * into depth texture.
> */
>
>#include "piglit-util.h"
>
>int piglit_width = 100;
>int piglit_height = 100;
>int piglit_window_mode = GLUT_DOUBLE | GLUT_RGB;
>
>enum piglit_result
>piglit_display(void)
>{
>	GLboolean pass = GL_TRUE;
>	GLuint tex, fb, rb;
>	GLint maxTextureSize, maxRenderbufferSize, textureSize;
>	GLenum status;
>	GLubyte *depth = NULL;
>
>	glGetIntegerv(GL_MAX_TEXTURE_SIZE, &maxTextureSize);
>	glGetIntegerv(GL_MAX_RENDERBUFFER_SIZE, &maxRenderbufferSize);
>	textureSize = (maxTextureSize > maxRenderbufferSize) ? maxRenderbufferSize:maxTextureSize;
>
>	glGenTextures(1, &tex);
>	glBindTexture(GL_TEXTURE_2D, tex);
>
>	glTexImage2D(GL_TEXTURE_2D, 0, GL_DEPTH_COMPONENT,
>		     textureSize, textureSize,
>		     0,
>		     GL_DEPTH_COMPONENT, GL_UNSIGNED_BYTE, NULL);
>
>	assert(glGetError() == 0);
>
>	glGenFramebuffersEXT(1, &fb);
>	glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, fb);
>	glGenRenderbuffersEXT(1, &rb);
>	glBindRenderbufferEXT(GL_RENDERBUFFER, rb);
>	glRenderbufferStorageEXT(GL_RENDERBUFFER, GL_DEPTH_COMPONENT, textureSize, textureSize);
>	glFramebufferRenderbufferEXT(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_RENDERBUFFER, rb);
>	glDrawBuffer(GL_NONE);
>	glReadBuffer(GL_NONE);
>	
>	assert(glGetError() == 0);
>
>	status = glCheckFramebufferStatusEXT (GL_FRAMEBUFFER_EXT);
>	if (status != GL_FRAMEBUFFER_COMPLETE_EXT) {
>		fprintf(stderr, "FBO incomplete\n");
>		piglit_report_result(PIGLIT_SKIP);
>	}
>
>	glClearDepth(0.5);
>	glClear(GL_DEPTH_BUFFER_BIT);
>
>	glCopyTexImage2D(GL_TEXTURE_2D, 0, GL_DEPTH_COMPONENT, 0, 0, 100, 100, 0);
>
>	depth = malloc(sizeof(GLubyte) * textureSize * textureSize);
>	glGetTexImage(GL_TEXTURE_2D, 0, GL_DEPTH_COMPONENT, GL_UNSIGNED_BYTE, depth);
>	if (depth[0] != 127)
>		pass = GL_FALSE;
>
>	glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0);
>	free(depth);
>	glDeleteRenderbuffersEXT(1, &rb);
>	glDeleteFramebuffersEXT(1, &fb);
>	glDeleteTextures(1, &tex);
>
>	return pass ? PIGLIT_PASS : PIGLIT_FAIL;
>}
>
>void piglit_init(int argc, char **argv)
>{
>	piglit_require_extension("GL_EXT_framebuffer_object");
>}

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