tests/spec/arb_direct_state_access/dsa-textures.c

   1 /*
   2  * Copyright 2014 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
  21  * DEALINGS IN THE SOFTWARE.
  22  */
  23
  24 /** @file dsa-textures.c
  25  *
  26  * Tests the direct state access functionality for creating, initializing, and
  27  * rendering texture objects.
  28  */
  29 #include "piglit-util-gl.h"
  30 #include "dsa-utils.h"
  31
  32 #include <stdlib.h>
  33
  34 PIGLIT_GL_TEST_CONFIG_BEGIN
  35
  36         config.supports_gl_core_version = 31;
  37         config.supports_gl_compat_version = 20;
  38
  39         config.window_visual = PIGLIT_GL_VISUAL_RGBA |
  40                 PIGLIT_GL_VISUAL_DOUBLE;
  41         config.khr_no_error_support = PIGLIT_NO_ERRORS;
  42
  43 PIGLIT_GL_TEST_CONFIG_END
  44
  45 static GLuint prog;
  46
  47 GLfloat*
  48 random_image_data(void)
  49 {
  50         int i;
  51         GLfloat *img = malloc(4*piglit_width*piglit_height*sizeof(GLfloat));
  52         for (i = 0; i < 4*piglit_width*piglit_height; ++i) {
  53                 img[i] = (float) rand() / RAND_MAX;
  54         }
  55         return img;
  56 } /* random_image_data */
  57
  58 void
  59 piglit_init(int argc, char **argv)
  60 {
  61         piglit_require_extension("GL_ARB_direct_state_access");
  62         piglit_require_extension("GL_ARB_texture_storage");
  63
  64         srand(0);
  65
  66         printf("Using driver %s.\n", (const char *) glGetString(GL_VERSION));
  67
  68         prog = dsa_create_program(GL_TEXTURE_2D);
  69 }
  70
  71 enum piglit_result
  72 piglit_display(void)
  73 {
  74         bool pass = true;
  75         GLfloat* data = random_image_data();
  76         GLuint name;
  77         const GLuint texunit = 3;
  78
  79         glCreateTextures(GL_TEXTURE_2D, 1, &name);
  80         glTextureStorage2D(name, 1, GL_RGBA32F, piglit_width, piglit_height);
  81         glTextureSubImage2D(name, 0, 0, 0, piglit_width, piglit_height,
  82                             GL_RGBA, GL_FLOAT, data);
  83         glTextureParameteri(name, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
  84         glTextureParameteri(name, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
  85
  86         /* Draw the image */
  87         dsa_texture_with_unit(prog, texunit);
  88         glUseProgram(prog);
  89         glBindTextureUnit(texunit, name);
  90         pass = piglit_check_gl_error(GL_NO_ERROR) && pass;
  91         piglit_draw_rect_tex(-1.0, -1.0, 2.0, 2.0, 0.0, 0.0, 1.0, 1.0);
  92         pass = piglit_check_gl_error(GL_NO_ERROR) && pass;
  93
  94         /* Check to make sure the image was drawn correctly */
  95         pass = piglit_probe_image_rgba(0, 0, piglit_width, piglit_height, data)
  96                 && pass;
  97
  98         if (!piglit_automatic)
  99                 piglit_present_results();
 100
 101         return pass ? PIGLIT_PASS : PIGLIT_FAIL;
 102 }