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Add pause and fast-forward keys

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This commit is contained in:
Camden Dixie O'Brien 2025-01-18 22:25:19 +00:00
parent 6b593960b4
commit c0c028ec12
1 changed files with 32 additions and 1 deletions
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33
main.c
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@ -27,6 +27,8 @@
#define MAX_SHADER_SIZE (8 * 1024) #define MAX_SHADER_SIZE (8 * 1024)
#define FASTFORWARD_RATE 100
#if defined(CPOW_DTHETA) && defined(POWRATE) #if defined(CPOW_DTHETA) && defined(POWRATE)
#error "Cannot define CPOW_DTHETA and POWRATE simulataneously" #error "Cannot define CPOW_DTHETA and POWRATE simulataneously"
#endif #endif
@ -94,6 +96,8 @@ static params_t params = {
.scale = STARTSCALE, .scale = STARTSCALE,
}; };
static bool paused = false, fastforward = false;
static void static void
mouse_button_callback(GLFWwindow *window, int button, int action, int mods) mouse_button_callback(GLFWwindow *window, int button, int action, int mods)
{ {
@ -119,6 +123,27 @@ mouse_button_callback(GLFWwindow *window, int button, int action, int mods)
params.centre.im = zy; params.centre.im = zy;
} }
static void
key_callback(GLFWwindow *window, int key, int scancode, int action, int mods)
{
(void)window;
(void)scancode;
(void)mods;
switch (key) {
case GLFW_KEY_SPACE:
if (action == GLFW_PRESS)
paused = !paused;
break;
case GLFW_KEY_F:
if (action == GLFW_PRESS)
fastforward = true;
else if (action == GLFW_RELEASE)
fastforward = false;
break;
}
}
static VkShaderModule load_shader_module(VkDevice dev, const char *path) static VkShaderModule load_shader_module(VkDevice dev, const char *path)
{ {
static char buf[MAX_SHADER_SIZE] static char buf[MAX_SHADER_SIZE]
@ -153,8 +178,9 @@ int main(void)
mode->width, mode->height, "GPU Fractal", monitor, NULL); mode->width, mode->height, "GPU Fractal", monitor, NULL);
assert(window); assert(window);
// Register mouse click callback // Register input callbacks
glfwSetMouseButtonCallback(window, mouse_button_callback); glfwSetMouseButtonCallback(window, mouse_button_callback);
glfwSetKeyCallback(window, key_callback);
// Initialise Vulkan instance. // Initialise Vulkan instance.
const VkApplicationInfo app_info = { const VkApplicationInfo app_info = {
@ -646,6 +672,10 @@ int main(void)
result = vkQueuePresentKHR(queue, &present_info); result = vkQueuePresentKHR(queue, &present_info);
assert(result == VK_SUCCESS); assert(result == VK_SUCCESS);
if (paused)
continue;
for (int i = 0; i < (fastforward ? FASTFORWARD_RATE : 1); ++i) {
#ifdef JULIA_DTHETA #ifdef JULIA_DTHETA
double complex julia = params.julia.re + I * params.julia.im; double complex julia = params.julia.re + I * params.julia.im;
julia *= julia_rotz; julia *= julia_rotz;
@ -667,6 +697,7 @@ int main(void)
#ifdef POWRATE #ifdef POWRATE
params.zpow += POWRATE; params.zpow += POWRATE;
#endif #endif
}
} }
vkDeviceWaitIdle(dev); vkDeviceWaitIdle(dev);