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aichingmaichingm
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Add demo for glfw + opengl4 without the use of gl extensions
1 parent 1dcce46 commit 9b6b98d

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‎Makefile

Lines changed: 4 additions & 4 deletions
Original file line numberDiff line numberDiff line change
@@ -21,9 +21,9 @@ INTRO = HEADER.md
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PUB = nuklear.h
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OUTPUT = nuklear.h
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24-
PRIV1 = nuklear_internal.h nuklear_math.c nuklear_util.c nuklear_color.c nuklear_utf8.c nuklear_buffer.c nuklear_string.c nuklear_draw.c nuklear_vertex.c
24+
PRIV1 = nuklear_internal.h nuklear_math.c nuklear_util.c nuklear_color.c nuklear_utf8.c nuklear_buffer.c nuklear_string.c nuklear_draw.c nuklear_vertex.c
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EXTERN = stb_rect_pack.h stb_truetype.h
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EXTERN = stb_rect_pack.h stb_truetype.h
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PRIV2 = nuklear_font.c nuklear_input.c nuklear_style.c nuklear_context.c nuklear_pool.c nuklear_page_element.c nuklear_table.c nuklear_panel.c nuklear_window.c nuklear_popup.c nuklear_contextual.c nuklear_menu.c nuklear_layout.c nuklear_tree.c nuklear_group.c nuklear_list_view.c nuklear_widget.c nuklear_text.c nuklear_image.c nuklear_9slice.c nuklear_button.c nuklear_toggle.c nuklear_selectable.c nuklear_slider.c nuklear_knob.c nuklear_progress.c nuklear_scrollbar.c nuklear_text_editor.c nuklear_edit.c nuklear_property.c nuklear_chart.c nuklear_color_picker.c nuklear_combo.c nuklear_tooltip.c
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@@ -45,7 +45,7 @@ usage:
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echo "make demos to build all of the demos"
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echo "make all to re-pack the header and create documentation"
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all: docs nuke demos
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all: docs nuke demos
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demos: $(DEMO_LIST)
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@@ -62,7 +62,7 @@ nuke: $(addprefix $(SRC_PATH)/, $(SRC))
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########################################################################################
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## Docs
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docs: $(DOCS_PATH)/html/index.html
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docs: $(DOCS_PATH)/html/index.html
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$(DOCS_PATH)/html/index.html: $(DOCS_PATH)/doxygen-awesome-css/doxygen-awesome.css $(DOXYFILE)
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doxygen $(DOXYFILE)

‎demo/glfw_opengl4/Makefile renamed to ‎demo/glfw_opengl4_core/Makefile

File renamed without changes.

‎demo/glfw_opengl4_core/main.c

Lines changed: 231 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,231 @@
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/* nuklear - 1.32.0 - public domain */
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#include <stdio.h>
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#include <stdlib.h>
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#include <stdint.h>
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#include <stdarg.h>
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#include <string.h>
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#include <math.h>
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#include <assert.h>
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#include <limits.h>
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#include <time.h>
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#include <GL/glew.h>
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#include <GLFW/glfw3.h>
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#define NK_INCLUDE_FIXED_TYPES
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#define NK_INCLUDE_STANDARD_IO
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#define NK_INCLUDE_STANDARD_VARARGS
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#define NK_INCLUDE_DEFAULT_ALLOCATOR
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#define NK_INCLUDE_VERTEX_BUFFER_OUTPUT
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#define NK_INCLUDE_FONT_BAKING
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#define NK_INCLUDE_DEFAULT_FONT
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#define NK_IMPLEMENTATION
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#define NK_GLFW_GL4_IMPLEMENTATION
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#include "../../nuklear.h"
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#include "nuklear_glfw_gl4.h"
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#define WINDOW_WIDTH 1200
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#define WINDOW_HEIGHT 800
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#define MAX_VERTEX_BUFFER 512 * 1024
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#define MAX_ELEMENT_BUFFER 128 * 1024
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/* ===============================================================
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*
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* EXAMPLE
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*
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* ===============================================================*/
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/* This are some code examples to provide a small overview of what can be
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* done with this library. To try out an example uncomment the defines */
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/*#define INCLUDE_ALL */
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/*#define INCLUDE_STYLE */
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/*#define INCLUDE_CALCULATOR */
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/*#define INCLUDE_CANVAS */
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#define INCLUDE_OVERVIEW
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/*#define INCLUDE_CONFIGURATOR */
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/*#define INCLUDE_NODE_EDITOR */
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#ifdef INCLUDE_ALL
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#define INCLUDE_STYLE
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#define INCLUDE_CALCULATOR
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#define INCLUDE_CANVAS
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#define INCLUDE_OVERVIEW
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#define INCLUDE_CONFIGURATOR
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#define INCLUDE_NODE_EDITOR
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#endif
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#ifdef INCLUDE_STYLE
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#include "../../demo/common/style.c"
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#endif
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#ifdef INCLUDE_CALCULATOR
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#include "../../demo/common/calculator.c"
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#endif
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#ifdef INCLUDE_CANVAS
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#include "../../demo/common/canvas.c"
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#endif
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#ifdef INCLUDE_OVERVIEW
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#include "../../demo/common/overview.c"
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#endif
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#ifdef INCLUDE_CONFIGURATOR
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#include "../../demo/common/style_configurator.c"
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#endif
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#ifdef INCLUDE_NODE_EDITOR
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#include "../../demo/common/node_editor.c"
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#endif
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/* ===============================================================
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*
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* DEMO
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*
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* ===============================================================*/
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static void error_callback(int e, const char *d)
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{printf("Error %d: %s\n", e, d);}
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int main(void)
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{
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/* Platform */
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static GLFWwindow *win;
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int width = 0, height = 0;
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struct nk_context *ctx;
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struct nk_colorf bg;
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struct nk_image img;
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#ifdef INCLUDE_CONFIGURATOR
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static struct nk_color color_table[NK_COLOR_COUNT];
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memcpy(color_table, nk_default_color_style, sizeof(color_table));
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#endif
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/* GLFW */
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glfwSetErrorCallback(error_callback);
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if (!glfwInit()) {
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fprintf(stdout, "[GFLW] failed to init!\n");
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exit(1);
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}
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glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 4);
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glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 5);
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glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
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#ifdef __APPLE__
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glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE);
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#endif
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win = glfwCreateWindow(WINDOW_WIDTH, WINDOW_HEIGHT, "Demo", NULL, NULL);
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glfwMakeContextCurrent(win);
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glfwGetWindowSize(win, &width, &height);
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/* OpenGL */
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glViewport(0, 0, WINDOW_WIDTH, WINDOW_HEIGHT);
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glewExperimental = 1;
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if (glewInit() != GLEW_OK) {
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fprintf(stderr, "Failed to setup GLEW\n");
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exit(1);
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}
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ctx = nk_glfw3_init(win, NK_GLFW3_INSTALL_CALLBACKS, MAX_VERTEX_BUFFER, MAX_ELEMENT_BUFFER);
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/* Load Fonts: if none of these are loaded a default font will be used */
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/* Load Cursor: if you uncomment cursor loading please hide the cursor */
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{struct nk_font_atlas *atlas;
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nk_glfw3_font_stash_begin(&atlas);
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/*struct nk_font *droid = nk_font_atlas_add_from_file(atlas, "../../../extra_font/DroidSans.ttf", 14, 0);*/
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/*struct nk_font *roboto = nk_font_atlas_add_from_file(atlas, "../../../extra_font/Roboto-Regular.ttf", 14, 0);*/
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/*struct nk_font *future = nk_font_atlas_add_from_file(atlas, "../../../extra_font/kenvector_future_thin.ttf", 13, 0);*/
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/*struct nk_font *clean = nk_font_atlas_add_from_file(atlas, "../../../extra_font/ProggyClean.ttf", 12, 0);*/
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/*struct nk_font *tiny = nk_font_atlas_add_from_file(atlas, "../../../extra_font/ProggyTiny.ttf", 10, 0);*/
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/*struct nk_font *cousine = nk_font_atlas_add_from_file(atlas, "../../../extra_font/Cousine-Regular.ttf", 13, 0);*/
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nk_glfw3_font_stash_end();
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/*nk_style_load_all_cursors(ctx, atlas->cursors);*/
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/*nk_style_set_font(ctx, &droid->handle);*/}
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{int tex_index = 0;
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enum {tex_width = 256, tex_height = 256};
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char pixels[tex_width * tex_height * 4];
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memset(pixels, 128, sizeof(pixels));
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tex_index = nk_glfw3_create_texture(pixels, tex_width, tex_height);
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img = nk_image_id(tex_index);}
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bg.r = 0.10f, bg.g = 0.18f, bg.b = 0.24f, bg.a = 1.0f;
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while (!glfwWindowShouldClose(win))
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{
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/* Input */
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glfwPollEvents();
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nk_glfw3_new_frame();
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/* GUI */
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if (nk_begin(ctx, "Demo", nk_rect(50, 50, 230, 250),
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NK_WINDOW_BORDER|NK_WINDOW_MOVABLE|NK_WINDOW_SCALABLE|
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NK_WINDOW_MINIMIZABLE|NK_WINDOW_TITLE))
154+
{
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enum {EASY, HARD};
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static int op = EASY;
157+
static int property = 20;
158+
nk_layout_row_static(ctx, 30, 80, 1);
159+
if (nk_button_label(ctx, "button"))
160+
fprintf(stdout, "button pressed\n");
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nk_layout_row_dynamic(ctx, 30, 2);
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if (nk_option_label(ctx, "easy", op == EASY)) op = EASY;
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if (nk_option_label(ctx, "hard", op == HARD)) op = HARD;
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nk_layout_row_dynamic(ctx, 25, 1);
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nk_property_int(ctx, "Compression:", 0, &property, 100, 10, 1);
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169+
nk_layout_row_dynamic(ctx, 20, 1);
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nk_label(ctx, "background:", NK_TEXT_LEFT);
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nk_layout_row_dynamic(ctx, 25, 1);
172+
if (nk_combo_begin_color(ctx, nk_rgb_cf(bg), nk_vec2(nk_widget_width(ctx),400))) {
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nk_layout_row_dynamic(ctx, 120, 1);
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bg = nk_color_picker(ctx, bg, NK_RGBA);
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nk_layout_row_dynamic(ctx, 25, 1);
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bg.r = nk_propertyf(ctx, "#R:", 0, bg.r, 1.0f, 0.01f,0.005f);
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bg.g = nk_propertyf(ctx, "#G:", 0, bg.g, 1.0f, 0.01f,0.005f);
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bg.b = nk_propertyf(ctx, "#B:", 0, bg.b, 1.0f, 0.01f,0.005f);
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bg.a = nk_propertyf(ctx, "#A:", 0, bg.a, 1.0f, 0.01f,0.005f);
180+
nk_combo_end(ctx);
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}
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}
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nk_end(ctx);
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/* Bindless Texture */
186+
if (nk_begin(ctx, "Texture", nk_rect(250, 150, 230, 250),
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NK_WINDOW_BORDER|NK_WINDOW_MOVABLE|NK_WINDOW_SCALABLE|
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NK_WINDOW_MINIMIZABLE|NK_WINDOW_TITLE))
189+
{
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struct nk_command_buffer *canvas = nk_window_get_canvas(ctx);
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struct nk_rect total_space = nk_window_get_content_region(ctx);
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nk_draw_image(canvas, total_space, &img, nk_white);
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}
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nk_end(ctx);
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/* -------------- EXAMPLES ---------------- */
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#ifdef INCLUDE_CALCULATOR
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calculator(ctx);
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#endif
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#ifdef INCLUDE_CANVAS
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canvas(ctx);
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#endif
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#ifdef INCLUDE_OVERVIEW
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overview(ctx);
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#endif
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#ifdef INCLUDE_CONFIGURATOR
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style_configurator(ctx, color_table);
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#endif
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#ifdef INCLUDE_NODE_EDITOR
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node_editor(ctx);
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#endif
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/* ----------------------------------------- */
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/* Draw */
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glfwGetWindowSize(win, &width, &height);
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glViewport(0, 0, width, height);
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glClear(GL_COLOR_BUFFER_BIT);
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glClearColor(bg.r, bg.g, bg.b, bg.a);
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/* IMPORTANT: `nk_glfw_render` modifies some global OpenGL state
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* with blending, scissor, face culling, depth test and viewport and
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* defaults everything back into a default state.
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* Make sure to either a.) save and restore or b.) reset your own state after
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* rendering the UI. */
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nk_glfw3_render(NK_ANTI_ALIASING_ON);
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glfwSwapBuffers(win);
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}
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nk_glfw3_shutdown();
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glfwTerminate();
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return 0;
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}
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