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Add revert button to gamma ramp test

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This commit is contained in:
Camilla Löwy 2017-11-26 22:12:41 +01:00
parent 3169179de1
commit 1a250234ea
1 changed files with 24 additions and 2 deletions
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26
tests/gamma.c
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@ -38,6 +38,7 @@
#define NK_INCLUDE_DEFAULT_ALLOCATOR
#define NK_INCLUDE_VERTEX_BUFFER_OUTPUT
#define NK_INCLUDE_STANDARD_VARARGS
#define NK_BUTTON_TRIGGER_ON_RELEASE
#include <nuklear.h>
#define NK_GLFW_GL2_IMPLEMENTATION
@ -85,6 +86,7 @@ int main(int argc, char** argv)
{
GLFWmonitor* monitor = NULL;
GLFWwindow* window;
GLFWgammaramp orig_ramp;
struct nk_context* nk;
struct nk_font_atlas* atlas;
float gamma_value = 1.f;
@ -103,6 +105,18 @@ int main(int argc, char** argv)
exit(EXIT_FAILURE);
}
{
const GLFWgammaramp* ramp = glfwGetGammaRamp(monitor);
const size_t array_size = ramp->size * sizeof(short);
orig_ramp.size = ramp->size;
orig_ramp.red = malloc(array_size);
orig_ramp.green = malloc(array_size);
orig_ramp.blue = malloc(array_size);
memcpy(orig_ramp.red, ramp->red, array_size);
memcpy(orig_ramp.green, ramp->green, array_size);
memcpy(orig_ramp.blue, ramp->blue, array_size);
}
glfwMakeContextCurrent(window);
gladLoadGLLoader((GLADloadproc) glfwGetProcAddress);
glfwSwapInterval(1);
@ -125,13 +139,17 @@ int main(int argc, char** argv)
nk_glfw3_new_frame();
if (nk_begin(nk, "", area, 0))
{
const GLFWgammaramp* ramp = glfwGetGammaRamp(monitor);
const GLFWgammaramp* ramp;
nk_window_set_bounds(nk, area);
nk_layout_row_dynamic(nk, 30, 2);
nk_layout_row_dynamic(nk, 30, 3);
if (nk_slider_float(nk, 0.1f, &gamma_value, 5.f, 0.1f))
glfwSetGamma(monitor, gamma_value);
nk_labelf(nk, NK_TEXT_LEFT, "%0.1f", gamma_value);
if (nk_button_label(nk, "Revert"))
glfwSetGammaRamp(monitor, &orig_ramp);
ramp = glfwGetGammaRamp(monitor);
nk_layout_row_dynamic(nk, height - 60.f, 3);
chart_ramp_array(nk, nk_rgb(255, 0, 0), ramp->size, ramp->red);
@ -146,6 +164,10 @@ int main(int argc, char** argv)
glfwWaitEventsTimeout(1.0);
}
free(orig_ramp.red);
free(orig_ramp.green);
free(orig_ramp.blue);
nk_glfw3_shutdown();
glfwTerminate();
exit(EXIT_SUCCESS);