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/*
* Copyright © 2010 VMware, Inc.
*
* 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:
* Brian Paul
*/
/**
* @file draw-elements-vs-inputs.c
*
* Test that state validation is properly done between calls to
* glDrawRangeElements() / glDrawElements() when VS inputs change between
* calls (with regard to per-vertex vs. per-primitive values).
*
* This is a regression test for a bug in Mesa/gallium/softpipe which
* was fixed with commit 3cba779e16935f7c3a0bfd8af48bd5e015068e96.
*/
#include "piglit-util-gl-common.h"
PIGLIT_GL_TEST_MAIN(
300 /*window_width*/,
300 /*window_height*/,
GLUT_RGB | GLUT_DOUBLE)
void
piglit_init(int argc, char **argv)
{
GLfloat red[4] = {1, 0, 0, 1};
if (piglit_get_gl_version() < 12) {
printf("Requires OpenGL 1.2\n");
piglit_report_result(PIGLIT_SKIP);
}
glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, red);
glEnable(GL_DEPTH_TEST);
glEnable(GL_LIGHTING);
glEnable(GL_LIGHT0);
glEnable(GL_NORMALIZE);
glClearColor(0.5, 0.5, 0.5, 0.5);
/*
printf("GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER));
printf("GL_VERSION = %s\n", (char *) glGetString(GL_VERSION));
*/
}
static void
draw_quad(GLboolean normals, GLboolean rangeElements)
{
static GLfloat norms[4][3] = {
{ -0.1, -0.1, 1 },
{ 0.1, -0.1, 1 },
{ 0.1, 0.1, 1 },
{ -0.1, 0.1, 1 }
};
static GLfloat verts[4][3] = {
{ -25, -25, 0.0 },
{ 25, -25, 0.0 },
{ 25, 25, 0.0 },
{ -25, 25, 0.0 }
};
static GLuint indexes[4] = { 0, 1, 2, 3 };
if (normals) {
glNormalPointer(GL_FLOAT, 0, norms);
glEnableClientState(GL_NORMAL_ARRAY);
}
else {
glNormal3f(1, 1, 1);
}
glVertexPointer(3, GL_FLOAT, 0, verts);
glEnableClientState(GL_VERTEX_ARRAY);
if (rangeElements)
glDrawRangeElements(GL_QUADS, 0, 3, 4, GL_UNSIGNED_INT, indexes);
else
glDrawElements(GL_QUADS, 4, GL_UNSIGNED_INT, indexes);
glDisableClientState(GL_VERTEX_ARRAY);
glDisableClientState(GL_NORMAL_ARRAY);
}
enum piglit_result
piglit_display(void)
{
const GLfloat expected1[3] = { 1.0, 0.039, 0.039, };
const GLfloat expected2[3] = { 0.615, 0.039, 0.039, };
GLint row;
GLboolean pass = GL_TRUE;
glViewport(0, 0, piglit_width, piglit_height);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glOrtho(0, piglit_width, 0, piglit_height, -1.0, 1.0);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
/* first row = glDrawElements, second row = glDrawRangeElements */
for (row = 0; row < 2; row++) {
GLint x0 = piglit_width/4;
GLint x1 = piglit_width/2;
GLint x2 = piglit_width*3/4;
GLint y = (piglit_height / 3) * (row + 1);
GLboolean rangeElements = row == 1;
/* quad with per-vertex normals */
if (1) {
glPushMatrix();
glTranslatef(x0, y, 0);
draw_quad(GL_TRUE, rangeElements);
glPopMatrix();
glFlush();
}
/* quad with one normal */
if (1) {
glPushMatrix();
glTranslatef(x1, y, 0);
glNormal3f(1, 0.5, 0.25);
draw_quad(GL_FALSE, rangeElements);
glPopMatrix();
glFlush();
}
/* another quad with per-vertex normals */
if (1) {
glPushMatrix();
glTranslatef(x2, y, 0);
draw_quad(GL_TRUE, rangeElements);
glPopMatrix();
}
/* left quad */
pass = piglit_probe_pixel_rgb(x0, y, expected1) && pass;
/* middle quad */
pass = piglit_probe_pixel_rgb(x1, y, expected2) && pass;
/* right quad */
pass = piglit_probe_pixel_rgb(x2, y, expected1) && pass;
}
piglit_present_results();
return pass ? PIGLIT_PASS : PIGLIT_FAIL;
}
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