Commit 394a01e1 authored by Brian Paul's avatar Brian Paul

vbo-buffer-unmap: exercise a VBO buffer unmap issue

parent c880d607
......@@ -40,3 +40,4 @@ add_executable (fdo25614-genmipmap fdo25614-genmipmap.c)
add_executable (fdo28551 fdo28551.c)
add_executable (fdo31934 fdo31934.c)
add_executable (tri-tex-crash tri-tex-crash.c)
add_executable (vbo-buffer-unmap vbo-buffer-unmap.c)
/*
* Copyright (c) 2011 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.
*/
/**
* Test that the VBO's buffers are unmapped before drawing.
* In particular, test the VMware svga Gallium driver.
*
* Brian Paul
* 18 Feb 2011
*/
#include "piglit-util.h"
#include "piglit-framework.h"
int piglit_window_mode = GLUT_DOUBLE | GLUT_RGB;
int piglit_width = 100, piglit_height = 100;
enum piglit_result
piglit_display(void)
{
GLubyte image[8][8][4];
GLuint tex;
memset(image, 0x80, sizeof(image));
glGenTextures(1, &tex);
glBindTexture(GL_TEXTURE_2D, tex);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 8, 8, 0,
GL_RGBA, GL_UNSIGNED_BYTE, image);
glClear(GL_COLOR_BUFFER_BIT);
glColor3f(0, 1, 0);
glBegin(GL_POINTS);
glVertex2f(-1, 0);
glEnd();
glBegin(GL_POINTS);
glVertex2f(0, 0);
glEnd();
glBegin(GL_POINTS);
glVertex2f(1, 0);
glEnd();
glFlush();
/* This call may cause a the internal VBO to be mapped and the
* glTexImage2D call which may do a DMA transfer may hit a path
* where we expect all VBOs to be unmapped.
*/
glColor3f(1, 0, 0);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 8, 8, 0,
GL_RGBA, GL_UNSIGNED_BYTE, image);
glutSwapBuffers();
return PIGLIT_SUCCESS;
}
void
piglit_init(int argc, char **argv)
{
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glOrtho(-2, 2, -2, 2, -1, 1);
}
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