tests/spec/gles-2.0/fbo-discard.c

   1 /*
   2  * Copyright © 2013 Intel Corporation
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice (including the next
  12  * paragraph) shall be included in all copies or substantial portions of the
  13  * Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  20  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
  21  * IN THE SOFTWARE.
  22  *
  23  * Authors:
  24  *    Tapani Pälli <tapani.palli@intel.com>
  25  */
  26
  27 /** @file fbo-discard.c
  28  *
  29  * Tests GL_EXT_discard_framebuffer implementation
  30  *
  31  * Test iterates over valid and invalid arguments and checks
  32  * that the implementation returns correct error codes.
  33  *
  34  * GL_EXT_discard_framebuffer specification "Errors" section states:
  35  *
  36  *  "The error INVALID_ENUM is generated if DiscardFramebufferEXT is called
  37  *   with a <target> that is not FRAMEBUFFER.
  38  *
  39  *   The error INVALID_ENUM is generated if DiscardFramebufferEXT is called with
  40  *   a token other than COLOR_ATTACHMENT0, DEPTH_ATTACHMENT, or
  41  *   STENCIL_ATTACHMENT in its <attachments> list when a framebuffer object is
  42  *   bound to <target>.
  43  *
  44  *   The error INVALID_ENUM is generated if DiscardFramebufferEXT is called with
  45  *   a token other than COLOR_EXT, DEPTH_EXT, or STENCIL_EXT in its
  46  *   <attachments> list when the default framebuffer is bound to <target>.
  47  *
  48  *   The error INVALID_VALUE is generated if DiscardFramebufferEXT is called
  49  *   with <numAttachments> less than zero."
  50  */
  51
  52 #include "piglit-util-gl.h"
  53
  54 PIGLIT_GL_TEST_CONFIG_BEGIN
  55
  56         config.supports_gl_es_version = 20;
  57
  58 PIGLIT_GL_TEST_CONFIG_END
  59
  60 static GLboolean
  61 run_test(void)
  62 {
  63         bool pass = true;
  64         GLenum *p = NULL;
  65         GLuint fbo;
  66
  67         /* valid enums for user created fb */
  68         GLenum usr_attach[] = {
  69                 GL_COLOR_ATTACHMENT0,
  70                 GL_DEPTH_ATTACHMENT,
  71                 GL_STENCIL_ATTACHMENT,
  72                 0
  73         };
  74
  75         /* valid enums for default fb */
  76         GLenum def_attach[] = {
  77                 GL_COLOR_EXT,
  78                 GL_DEPTH_EXT,
  79                 GL_STENCIL_EXT,
  80                 0
  81         };
  82
  83         /* bonus invalid enum */
  84         const GLenum invalid[] = { GL_COMPILE_STATUS };
  85
  86         glGenFramebuffers(1, &fbo);
  87
  88         /* test with invalid target */
  89         glDiscardFramebufferEXT(GL_RENDERBUFFER, 1, usr_attach);
  90         pass &= piglit_check_gl_error(GL_INVALID_ENUM);
  91
  92         /* test with attachments < 0 */
  93         glDiscardFramebufferEXT(GL_FRAMEBUFFER, -1, usr_attach);
  94         pass &= piglit_check_gl_error(GL_INVALID_VALUE);
  95
  96         /* test with default fb */
  97         glBindFramebuffer(GL_FRAMEBUFFER, 0);
  98
  99         glDiscardFramebufferEXT(GL_FRAMEBUFFER, 3, def_attach);
 100         for (p = def_attach; *p != 0; p++) {
 101                 glDiscardFramebufferEXT(GL_FRAMEBUFFER, 1, p);
 102                 pass &= piglit_check_gl_error(GL_NO_ERROR);
 103         }
 104
 105         glDiscardFramebufferEXT(GL_FRAMEBUFFER, 1, invalid);
 106         pass &= piglit_check_gl_error(GL_INVALID_ENUM);
 107
 108         for (p = usr_attach; *p != 0; p++) {
 109                 glDiscardFramebufferEXT(GL_FRAMEBUFFER, 1, p);
 110                 pass &= piglit_check_gl_error(GL_INVALID_ENUM);
 111         }
 112
 113         /* test user created fb */
 114         glBindFramebuffer(GL_FRAMEBUFFER, fbo);
 115
 116         glDiscardFramebufferEXT(GL_FRAMEBUFFER, 3, usr_attach);
 117         for (p = usr_attach; *p != 0; p++) {
 118                 glDiscardFramebufferEXT(GL_FRAMEBUFFER, 1, p);
 119                 pass &= piglit_check_gl_error(GL_NO_ERROR);
 120         }
 121
 122         glDiscardFramebufferEXT(GL_FRAMEBUFFER, 1, invalid);
 123         pass &= piglit_check_gl_error(GL_INVALID_ENUM);
 124
 125         for (p = def_attach; *p != 0; p++) {
 126                 glDiscardFramebufferEXT(GL_FRAMEBUFFER, 1, p);
 127                 pass &= piglit_check_gl_error(GL_INVALID_ENUM);
 128         }
 129
 130         return pass;
 131 }
 132
 133
 134 enum piglit_result
 135 piglit_display(void)
 136 {
 137         GLboolean pass = run_test();
 138
 139         return pass ? PIGLIT_PASS : PIGLIT_FAIL;
 140 }
 141
 142 void
 143 piglit_init(int argc, char **argv)
 144 {
 145         piglit_require_extension("GL_EXT_discard_framebuffer");
 146 }