tests/spec/ext_packed_float/query-rgba-signed-components.c

   1 /*
   2  * Copyright (c) 2013 Bruce Merry
   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  * on the rights to use, copy, modify, merge, publish, distribute, sub
   8  * license, and/or sell copies of the Software, and to permit persons to whom
   9  * the 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,
  16  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  17  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  18  * NON-INFRINGEMENT.  IN NO EVENT SHALL THE AUTHORS OR COYPRIGTH
  19  * HOLDERS AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
  20  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  21  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE
  22  * OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  23  */
  24
  25 #include "piglit-util-gl.h"
  26
  27 typedef struct {
  28         GLenum format;
  29         const char *extension;
  30         int expected[4];
  31         int buffer; /* Draw buffer to attach the renderbuffer to */
  32 } format_info;
  33
  34 static const format_info formats[] = {
  35         { GL_RGBA8, NULL, { 0, 0, 0, 0 } },
  36         { GL_R8I, "GL_ARB_texture_rg", { 1, 0, 0, 0 } },
  37         { GL_RG8I, "GL_ARB_texture_rg", { 1, 1, 0, 0 } },
  38         { GL_R8_SNORM, "GL_EXT_texture_snorm", { 1, 0, 0, 0 } },
  39         { GL_LUMINANCE8_SNORM, "GL_EXT_texture_snorm", { 1, 1, 1, 0 } },
  40         { GL_RGBA8UI_EXT, "GL_EXT_texture_integer", { 0, 0, 0, 0 } },
  41         { GL_RGBA16F_ARB, "GL_ARB_texture_float", { 1, 1, 1, 1 } },
  42         { GL_LUMINANCE16F_ARB, "GL_ARB_texture_float", { 1, 1, 1, 0 } },
  43         { GL_RGB9_E5_EXT, "GL_EXT_texture_shared_exponent", { 0, 0, 0, 0 } },
  44         { GL_R11F_G11F_B10F_EXT, "GL_EXT_packed_float", { 0, 0, 0, 0 } },
  45         { GL_RGBA16F_ARB, "GL_ARB_texture_float", { 0, 0, 0, 0 }, 1 }
  46 };
  47
  48 PIGLIT_GL_TEST_CONFIG_BEGIN
  49         config.supports_gl_compat_version = 10;
  50         config.window_visual = PIGLIT_GL_VISUAL_RGB;
  51         config.khr_no_error_support = PIGLIT_NO_ERRORS;
  52 PIGLIT_GL_TEST_CONFIG_END
  53
  54 enum piglit_result
  55 piglit_display(void)
  56 {
  57         /* Should never be reached */
  58         return PIGLIT_FAIL;
  59 }
  60
  61 /* Queries GL_RGBA_SIGNED_COMPONENTS_EXT and compares to expected.
  62  * If they do not match, prints an error. Returns true on match.
  63  */
  64 static bool check_rgba_signed(const int *expected)
  65 {
  66         int i;
  67         /* Start with nonsense values, to ensure they are written */
  68         GLint actual[4] = {2, 2, 2, 2};
  69
  70         glGetIntegerv(GL_RGBA_SIGNED_COMPONENTS_EXT, actual);
  71         if (!piglit_check_gl_error(GL_NO_ERROR)) {
  72                 return false;
  73         }
  74
  75         for (i = 0; i < 4; i++) {
  76                 if (expected[i] != actual[i]) {
  77                         printf("Expected: (%d, %d, %d, %d)\n",
  78                                expected[0],
  79                                expected[1],
  80                                expected[2],
  81                                expected[3]);
  82                         printf("Actual: (%d, %d, %d, %d)\n",
  83                                actual[0],
  84                                actual[1],
  85                                actual[2],
  86                                actual[3]);
  87                         return false;
  88                 }
  89         }
  90         return true;
  91 }
  92
  93 static bool test_format(const format_info *f)
  94 {
  95         GLuint rbo = 0;
  96         bool pass = true;
  97
  98         if (f->extension != NULL
  99             && !piglit_is_extension_supported(f->extension)) {
 100                 printf("Skipping %s since %s not present\n",
 101                        piglit_get_gl_enum_name(f->format), f->extension);
 102                 return pass;
 103         }
 104
 105         glGenRenderbuffers(1, &rbo);
 106         glBindRenderbuffer(GL_RENDERBUFFER, rbo);
 107         glRenderbufferStorage(
 108                 GL_RENDERBUFFER,
 109                 f->format, 16, 16);
 110         glFramebufferRenderbuffer(
 111                 GL_DRAW_FRAMEBUFFER,
 112                 GL_COLOR_ATTACHMENT0 + f->buffer,
 113                 GL_RENDERBUFFER, rbo);
 114         if (glCheckFramebufferStatus(GL_DRAW_FRAMEBUFFER)
 115             != GL_FRAMEBUFFER_COMPLETE) {
 116                 printf("Skipping %s: framebuffer not complete\n",
 117                        piglit_get_gl_enum_name(f->format));
 118         } else {
 119                 printf("Testing %s\n", piglit_get_gl_enum_name(f->format));
 120                 if (!check_rgba_signed(f->expected))
 121                         pass = false;
 122         }
 123
 124         glFramebufferRenderbuffer(
 125                 GL_DRAW_FRAMEBUFFER,
 126                 GL_COLOR_ATTACHMENT0 + f->buffer,
 127                 GL_RENDERBUFFER, 0);
 128         glDeleteRenderbuffers(1, &rbo);
 129         return pass;
 130 }
 131
 132 void
 133 piglit_init(int argc, char **argv)
 134 {
 135         int expected[4] = {0, 0, 0, 0};
 136         bool pass = true;
 137         unsigned int i;
 138         const GLenum buffers[2] = {GL_COLOR_ATTACHMENT0, GL_COLOR_ATTACHMENT1};
 139
 140         piglit_require_extension("GL_EXT_packed_float");
 141
 142         /* With a normal window, all channels should be unsigned */
 143         printf("Testing window\n");
 144         if (!check_rgba_signed(expected))
 145                 pass = false;
 146
 147         if (piglit_is_extension_supported("GL_ARB_framebuffer_object")) {
 148                 GLuint fbo = 0;
 149
 150                 glGenFramebuffers(1, &fbo);
 151                 glBindFramebuffer(GL_DRAW_FRAMEBUFFER, fbo);
 152                 glDrawBuffers(2, buffers);
 153                 /* Test a variety of FBO formats */
 154                 for (i = 0; i < ARRAY_SIZE(formats); i++) {
 155                         pass = test_format(formats + i) && pass;
 156                 }
 157                 glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0);
 158                 glDeleteFramebuffers(1, &fbo);
 159         }
 160
 161         piglit_report_result(pass ? PIGLIT_PASS : PIGLIT_FAIL);
 162 }