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/*
* Copyright © 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:
* Eric Anholt <eric@anholt.net>
* Michal Suchanek <hramrach@centrum.cz>
* based on mesa demo added by Keith Whitwell <keith@tungstengraphics.com>
*/
/** @file draw-elements-base-vertex.c
* Tests ARB_draw_elements_base_vertex functionality by drawing two
* triangles using different base vertices, using the same vertex and
* index buffers.
* In Mesa Gallium 7.11 this causes a crash.
*/
#include "piglit-util-gl-common.h"
PIGLIT_GL_TEST_CONFIG_BEGIN
config.supports_gl_compat_version = 10;
config.window_width = 300;
config.window_height = 300;
config.window_visual = PIGLIT_GL_VISUAL_RGB | PIGLIT_GL_VISUAL_DOUBLE;
PIGLIT_GL_TEST_CONFIG_END
static GLfloat vertices[][4] = {
{ 1, -1, 0, 1 }, /* bottom right */
{ 1, 1, 0, 1 }, /* top right */
{ -1, 1, 0, 1 }, /* top left */
{ -1, -1, 0, 1 }, /* bottom left */
};
static GLubyte colors[][4] = {
{ 0, 255, 0, 0 },
{ 0, 0, 255, 0 },
{ 255, 255, 255, 0 },
{ 255, 0, 0, 0 },
};
void
piglit_init(int argc, char **argv)
{
static const char * program =
"!!ARBvp1.0\n"
"MOV result.color, vertex.color;\n"
"MOV result.position, vertex.position;\n"
"END\n";
GLuint program_no;
piglit_require_extension("GL_ARB_draw_elements_base_vertex");
piglit_require_extension("GL_ARB_vertex_program");
glGenProgramsARB(1, &program_no);
glBindProgramARB(GL_VERTEX_PROGRAM_ARB, program_no);
glProgramStringARB(GL_VERTEX_PROGRAM_ARB, GL_PROGRAM_FORMAT_ASCII_ARB,
strlen(program), program);
assert(glIsProgramARB(program_no));
glMatrixMode(GL_MODELVIEW);
glPushMatrix();
glLoadIdentity();
glEnableClientState(GL_VERTEX_ARRAY);
glVertexPointer(3, GL_FLOAT, sizeof(vertices[0]), vertices);
glEnableClientState(GL_COLOR_ARRAY);
glColorPointer(4, GL_UNSIGNED_BYTE, 0, colors);
}
enum piglit_result
piglit_display(void)
{
GLboolean pass = GL_TRUE;
GLuint indices[] = { 1, 2, 0,
3, 0, 1 };
static GLfloat test_colors[][3] = {
{ 1, 0, 0 },
{ 0, 1, 0 },
{ 0, 0, 1 },
{ 1, 1, 1 },
};
glViewport(0, 0, piglit_width, piglit_height);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glOrtho(-1, 1, -1, 1, -0.5, 1000);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
glClearColor(0.3, 0.3, 0.3, 1);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glEnable(GL_VERTEX_PROGRAM_ARB);
/* draw elements 3,4,5 ->verts 3,0,1 (lower-right tri) */
glDrawElements(GL_TRIANGLES, 3, GL_UNSIGNED_INT, indices + 3);
/* draw elements 0,1,2 ->verts (1+1),(2+1),(0+1) (upper-left tri) */
glDrawElementsBaseVertex(GL_TRIANGLES, 3, GL_UNSIGNED_INT, indices, 1);
glFlush();
pass = piglit_probe_pixel_rgb(0, 0, test_colors[0]) && pass;
pass = piglit_probe_pixel_rgb(piglit_width - 1, 0, test_colors[1]) && pass;
pass = piglit_probe_pixel_rgb(piglit_width - 1, piglit_height - 1, test_colors[2]) && pass;
pass = piglit_probe_pixel_rgb(0, piglit_height - 1, test_colors[3]) && pass;
piglit_present_results();
return pass ? PIGLIT_PASS : PIGLIT_FAIL;
}
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