glfw/tests/modes.c
2012-03-22 23:28:43 +01:00

224 lines
5.7 KiB
C

//========================================================================
// Video mode test
// Copyright (c) Camilla Berglund <elmindreda@elmindreda.org>
//
// This software is provided 'as-is', without any express or implied
// warranty. In no event will the authors be held liable for any damages
// arising from the use of this software.
//
// Permission is granted to anyone to use this software for any purpose,
// including commercial applications, and to alter it and redistribute it
// freely, subject to the following restrictions:
//
// 1. The origin of this software must not be misrepresented; you must not
// claim that you wrote the original software. If you use this software
// in a product, an acknowledgment in the product documentation would
// be appreciated but is not required.
//
// 2. Altered source versions must be plainly marked as such, and must not
// be misrepresented as being the original software.
//
// 3. This notice may not be removed or altered from any source
// distribution.
//
//========================================================================
//
// This test enumerates or verifies video modes
//
//========================================================================
#include <GL/glfw3.h>
#include <stdio.h>
#include <stdlib.h>
#include "getopt.h"
static GLFWwindow window = NULL;
enum Mode
{
NO_MODE,
LIST_MODE,
TEST_MODE
};
static void usage(void)
{
printf("Usage: modes -l\n");
printf(" modes -t\n");
printf(" modes -h\n");
}
static void print_mode(GLFWvidmode* mode)
{
printf("%i x %i x %i (%i %i %i)",
mode->width, mode->height,
mode->redBits + mode->greenBits + mode->blueBits,
mode->redBits, mode->greenBits, mode->blueBits);
}
static void error_callback(int error, const char* description)
{
fprintf(stderr, "Error: %s\n", description);
}
static void window_size_callback(GLFWwindow window, int width, int height)
{
printf("Window resized to %ix%i\n", width, height);
glViewport(0, 0, width, height);
}
static int window_close_callback(GLFWwindow dummy)
{
window = NULL;
return GL_TRUE;
}
static void list_modes(GLFWvidmode* modes, int count)
{
int i;
GLFWvidmode mode;
glfwGetDesktopMode(&mode);
printf("Desktop mode: ");
print_mode(&mode);
putchar('\n');
for (i = 0; i < count; i++)
{
printf("%3i: ", i);
print_mode(modes + i);
putchar('\n');
}
}
static void test_modes(GLFWvidmode* modes, int count)
{
int i, width, height;
glfwSetWindowSizeCallback(window_size_callback);
glfwSetWindowCloseCallback(window_close_callback);
for (i = 0; i < count; i++)
{
glfwOpenWindowHint(GLFW_RED_BITS, modes[i].redBits);
glfwOpenWindowHint(GLFW_GREEN_BITS, modes[i].greenBits);
glfwOpenWindowHint(GLFW_BLUE_BITS, modes[i].blueBits);
printf("Opening ");
print_mode(modes + i);
printf(" window\n");
window = glfwOpenWindow(modes[i].width, modes[i].height,
GLFW_FULLSCREEN, "Video Mode Test",
NULL);
if (!window)
{
printf("Failed to enter mode %i: ", i);
print_mode(modes + i);
putchar('\n');
continue;
}
glfwSetTime(0.0);
glfwSwapInterval(1);
while (glfwGetTime() < 5.0)
{
glClear(GL_COLOR_BUFFER_BIT);
glfwSwapBuffers();
glfwPollEvents();
if (!window)
{
printf("User terminated program\n");
exit(EXIT_SUCCESS);
}
}
if (glfwGetWindowParam(window, GLFW_RED_BITS) != modes[i].redBits ||
glfwGetWindowParam(window, GLFW_GREEN_BITS) != modes[i].greenBits ||
glfwGetWindowParam(window, GLFW_BLUE_BITS) != modes[i].blueBits)
{
printf("*** Color bit mismatch: (%i %i %i) instead of (%i %i %i)\n",
glfwGetWindowParam(window, GLFW_RED_BITS),
glfwGetWindowParam(window, GLFW_GREEN_BITS),
glfwGetWindowParam(window, GLFW_BLUE_BITS),
modes[i].redBits,
modes[i].greenBits,
modes[i].blueBits);
}
glfwGetWindowSize(window, &width, &height);
if (width != modes[i].width || height != height)
{
printf("*** Size mismatch: %ix%i instead of %ix%i\n",
width, height,
modes[i].width, modes[i].height);
}
printf("Closing window\n");
glfwCloseWindow(window);
glfwPollEvents();
window = NULL;
}
}
int main(int argc, char** argv)
{
int ch, found, count = 0, mode = NO_MODE;
GLFWvidmode* modes = NULL;
while ((ch = getopt(argc, argv, "lth")) != -1)
{
switch (ch)
{
case 'h':
usage();
exit(EXIT_SUCCESS);
case 'l':
mode = LIST_MODE;
break;
case 't':
mode = TEST_MODE;
break;
default:
usage();
exit(EXIT_FAILURE);
}
}
argc -= optind;
argv += optind;
glfwSetErrorCallback(error_callback);
if (!glfwInit())
exit(EXIT_FAILURE);
for (;;)
{
count += 256;
modes = realloc(modes, sizeof(GLFWvidmode) * count);
found = glfwGetVideoModes(modes, count);
if (found < count)
break;
}
if (mode == LIST_MODE)
list_modes(modes, found);
else if (mode == TEST_MODE)
test_modes(modes, found);
free(modes);
modes = NULL;
exit(EXIT_SUCCESS);
}