Attachment 53740 Details for Bug 43138 – Piglit case to test retrieving the number of active attribute.

Piglit case to test retrieving the number of active attribute.

glsl-getactiveattrib-count.c (text/plain), 3.07 KB, created by Yi Sun on 2011-11-21 06:44:48 UTC

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Creator: Yi Sun

Created: 2011-11-21 06:44:48 UTC

Size: 3.07 KB

patch

obsolete

>/*
> * Copyright Â© 2009 Intel Corporation
> *
> * 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:
> *    Sun Yi <yi.sun@intel.com>
> *
> */
>
>/** @file glsl-getactiveattrib-count.c
> *
> * To test the number of active attributes in a program can be retrieved with glGetProgramiv with GL_ACTIVE_ATTRIBUTES.
> *
> */
>
>#include "piglit-util.h"
>
>int piglit_width = 100, piglit_height = 100;
>int piglit_window_mode = GLUT_RGB | GLUT_DOUBLE;
>
>static GLint prog;
>
>static const char vs_source[] =
>        "attribute  float  myAttribVar; \n"
>        "attribute  float  maxAttribVal; \n"
>        "void main() \n"
>        "{ \n"
>//        "    gl_Position = ftransform(); \n"
>        "    gl_Position = gl_ModelViewProjectionMatrix * gl_Vertex; \n"
>        "    gl_FrontColor.x = myAttribVar / maxAttribVal; \n"                   "    gl_FrontColor.y = 0.0; \n"
>        "    gl_FrontColor.z = 0.0; \n"
>        "    gl_FrontColor.w = 1.0; \n"
>        "} \n";
>
>static const char fs_source[] =
>        "void main() \n"
>        "{ \n"
>        "    gl_FragColor[0] = gl_Color.x; \n"
>        "    gl_FragColor[1] = gl_Color.y; \n"
>        "    gl_FragColor[2] = gl_Color.z; \n"
>        "    gl_FragColor[3] = gl_Color.w; \n"
>        "} \n";
>
>enum piglit_result
>piglit_display(void)
>{
>	/* unreached */
>	return PIGLIT_FAIL;
>}
>
>void
>piglit_init(int argc, char **argv)
>{
>
>	GLint vs, fs;
>	GLboolean pass = GL_TRUE;
>
>	int count = 0, expect = 3;
>
>	if (!GLEW_VERSION_2_0) {
>        printf("Requires OpenGL 2.0\n");
>        piglit_report_result(PIGLIT_SKIP);
>    }
>//    piglit_require_extension("GL_EXT_separate_shader_objects");
>
>    vs = piglit_compile_shader_text(GL_VERTEX_SHADER, vs_source);
>    fs = piglit_compile_shader_text(GL_FRAGMENT_SHADER, fs_source);
>    prog = piglit_link_simple_program(vs, fs);
>
>	glGetProgramiv(prog, GL_ACTIVE_ATTRIBUTES, &count);
>
>	if (count != expect) {
>		printf("Unexpected active attribute count "
>		       "(saw %d, expected %d)\n", count, expect);
>		pass = GL_FALSE;
>	}
>
>	if (pass)
>		piglit_report_result(PIGLIT_PASS);
>	else
>		piglit_report_result(PIGLIT_FAIL);
>}

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