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/*
* Copyright © 2013, 2014 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.
*/
/** @file texture-buffer.c
*
* Tests that glBufferData() synchronizes correctly with TBO rendering.
*
* Caught a bug in the i965 driver after a core Mesa refactor.
*
* Adapted to test glTextureBuffer by Laura Ekstrand (December 2014).
*/
#include "piglit-util-gl.h"
PIGLIT_GL_TEST_CONFIG_BEGIN
config.supports_gl_compat_version = 10;
config.supports_gl_core_version = 31;
config.window_visual = PIGLIT_GL_VISUAL_DOUBLE |
PIGLIT_GL_VISUAL_RGBA;
PIGLIT_GL_TEST_CONFIG_END
enum piglit_result
piglit_display(void)
{
static const char *vs_source =
"#version 140\n"
"in vec4 piglit_vertex;\n"
"void main()\n"
"{\n"
" gl_Position = piglit_vertex;\n"
"}\n";
static const char *fs_source =
"#version 140\n"
"uniform samplerBuffer s;\n"
"void main()\n"
"{\n"
" gl_FragColor = texelFetch(s, 0);\n"
"}\n";
bool pass = true;
GLuint tex, bo;
GLuint prog;
float green[] = {0, 1, 0, 0};
float blue[] = {0, 0, 1, 0};
uint8_t g_rgba8[] = {0x00, 0xff, 0x00, 0x00};
uint8_t b_rgba8[] = {0x00, 0x00, 0xff, 0x00};
prog = piglit_build_simple_program(vs_source, fs_source);
glUseProgram(prog);
glGenBuffers(1, &bo);
glBindBuffer(GL_TEXTURE_BUFFER, bo);
glBufferData(GL_TEXTURE_BUFFER, sizeof(g_rgba8), g_rgba8,
GL_STREAM_DRAW);
glCreateTextures(GL_TEXTURE_BUFFER, 1, &tex);
glTextureBuffer(tex, GL_RGBA8, bo);
glBindTextureUnit(0, tex);
piglit_draw_rect(-1, -1, 1, 2);
glBufferData(GL_TEXTURE_BUFFER, sizeof(b_rgba8), b_rgba8,
GL_STREAM_DRAW);
piglit_draw_rect(0, -1, 1, 2);
pass = pass && piglit_probe_rect_rgba(0, 0,
piglit_width / 2, piglit_height,
green);
pass = pass && piglit_probe_rect_rgba(piglit_width / 2, 0,
piglit_width / 2, piglit_height,
blue);
piglit_present_results();
return pass ? PIGLIT_PASS : PIGLIT_FAIL;
}
void
piglit_init(int argc, char **argv)
{
piglit_require_extension("GL_ARB_direct_state_access");
piglit_require_GLSL_version(140);
if (piglit_get_gl_version() < 31)
piglit_require_extension("GL_ARB_texture_buffer_object");
}
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