diff options
Diffstat (limited to '3rdparty/glfw/source/deps/nuklear_glfw_gl2.h')
| -rw-r--r-- | 3rdparty/glfw/source/deps/nuklear_glfw_gl2.h | 381 |
1 files changed, 0 insertions, 381 deletions
diff --git a/3rdparty/glfw/source/deps/nuklear_glfw_gl2.h b/3rdparty/glfw/source/deps/nuklear_glfw_gl2.h deleted file mode 100644 index a959b14..0000000 --- a/3rdparty/glfw/source/deps/nuklear_glfw_gl2.h +++ /dev/null @@ -1,381 +0,0 @@ -/* - * Nuklear - v1.32.0 - public domain - * no warrenty implied; use at your own risk. - * authored from 2015-2017 by Micha Mettke - */ -/* - * ============================================================== - * - * API - * - * =============================================================== - */ -#ifndef NK_GLFW_GL2_H_ -#define NK_GLFW_GL2_H_ - -#include <GLFW/glfw3.h> - -enum nk_glfw_init_state{ - NK_GLFW3_DEFAULT = 0, - NK_GLFW3_INSTALL_CALLBACKS -}; -NK_API struct nk_context* nk_glfw3_init(GLFWwindow *win, enum nk_glfw_init_state); -NK_API void nk_glfw3_font_stash_begin(struct nk_font_atlas **atlas); -NK_API void nk_glfw3_font_stash_end(void); - -NK_API void nk_glfw3_new_frame(void); -NK_API void nk_glfw3_render(enum nk_anti_aliasing); -NK_API void nk_glfw3_shutdown(void); - -NK_API void nk_glfw3_char_callback(GLFWwindow *win, unsigned int codepoint); -NK_API void nk_gflw3_scroll_callback(GLFWwindow *win, double xoff, double yoff); - -#endif - -/* - * ============================================================== - * - * IMPLEMENTATION - * - * =============================================================== - */ -#ifdef NK_GLFW_GL2_IMPLEMENTATION - -#ifndef NK_GLFW_TEXT_MAX -#define NK_GLFW_TEXT_MAX 256 -#endif -#ifndef NK_GLFW_DOUBLE_CLICK_LO -#define NK_GLFW_DOUBLE_CLICK_LO 0.02 -#endif -#ifndef NK_GLFW_DOUBLE_CLICK_HI -#define NK_GLFW_DOUBLE_CLICK_HI 0.2 -#endif - -struct nk_glfw_device { - struct nk_buffer cmds; - struct nk_draw_null_texture null; - GLuint font_tex; -}; - -struct nk_glfw_vertex { - float position[2]; - float uv[2]; - nk_byte col[4]; -}; - -static struct nk_glfw { - GLFWwindow *win; - int width, height; - int display_width, display_height; - struct nk_glfw_device ogl; - struct nk_context ctx; - struct nk_font_atlas atlas; - struct nk_vec2 fb_scale; - unsigned int text[NK_GLFW_TEXT_MAX]; - int text_len; - struct nk_vec2 scroll; - double last_button_click; - int is_double_click_down; - struct nk_vec2 double_click_pos; -} glfw; - -NK_INTERN void -nk_glfw3_device_upload_atlas(const void *image, int width, int height) -{ - struct nk_glfw_device *dev = &glfw.ogl; - glGenTextures(1, &dev->font_tex); - glBindTexture(GL_TEXTURE_2D, dev->font_tex); - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); - glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, (GLsizei)width, (GLsizei)height, 0, - GL_RGBA, GL_UNSIGNED_BYTE, image); -} - -NK_API void -nk_glfw3_render(enum nk_anti_aliasing AA) -{ - /* setup global state */ - struct nk_glfw_device *dev = &glfw.ogl; - glPushAttrib(GL_ENABLE_BIT|GL_COLOR_BUFFER_BIT|GL_TRANSFORM_BIT); - glDisable(GL_CULL_FACE); - glDisable(GL_DEPTH_TEST); - glEnable(GL_SCISSOR_TEST); - glEnable(GL_BLEND); - glEnable(GL_TEXTURE_2D); - glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); - - /* setup viewport/project */ - glViewport(0,0,(GLsizei)glfw.display_width,(GLsizei)glfw.display_height); - glMatrixMode(GL_PROJECTION); - glPushMatrix(); - glLoadIdentity(); - glOrtho(0.0f, glfw.width, glfw.height, 0.0f, -1.0f, 1.0f); - glMatrixMode(GL_MODELVIEW); - glPushMatrix(); - glLoadIdentity(); - - glEnableClientState(GL_VERTEX_ARRAY); - glEnableClientState(GL_TEXTURE_COORD_ARRAY); - glEnableClientState(GL_COLOR_ARRAY); - { - GLsizei vs = sizeof(struct nk_glfw_vertex); - size_t vp = offsetof(struct nk_glfw_vertex, position); - size_t vt = offsetof(struct nk_glfw_vertex, uv); - size_t vc = offsetof(struct nk_glfw_vertex, col); - - /* convert from command queue into draw list and draw to screen */ - const struct nk_draw_command *cmd; - const nk_draw_index *offset = NULL; - struct nk_buffer vbuf, ebuf; - - /* fill convert configuration */ - struct nk_convert_config config; - static const struct nk_draw_vertex_layout_element vertex_layout[] = { - {NK_VERTEX_POSITION, NK_FORMAT_FLOAT, NK_OFFSETOF(struct nk_glfw_vertex, position)}, - {NK_VERTEX_TEXCOORD, NK_FORMAT_FLOAT, NK_OFFSETOF(struct nk_glfw_vertex, uv)}, - {NK_VERTEX_COLOR, NK_FORMAT_R8G8B8A8, NK_OFFSETOF(struct nk_glfw_vertex, col)}, - {NK_VERTEX_LAYOUT_END} - }; - NK_MEMSET(&config, 0, sizeof(config)); - config.vertex_layout = vertex_layout; - config.vertex_size = sizeof(struct nk_glfw_vertex); - config.vertex_alignment = NK_ALIGNOF(struct nk_glfw_vertex); - config.null = dev->null; - config.circle_segment_count = 22; - config.curve_segment_count = 22; - config.arc_segment_count = 22; - config.global_alpha = 1.0f; - config.shape_AA = AA; - config.line_AA = AA; - - /* convert shapes into vertexes */ - nk_buffer_init_default(&vbuf); - nk_buffer_init_default(&ebuf); - nk_convert(&glfw.ctx, &dev->cmds, &vbuf, &ebuf, &config); - - /* setup vertex buffer pointer */ - {const void *vertices = nk_buffer_memory_const(&vbuf); - glVertexPointer(2, GL_FLOAT, vs, (const void*)((const nk_byte*)vertices + vp)); - glTexCoordPointer(2, GL_FLOAT, vs, (const void*)((const nk_byte*)vertices + vt)); - glColorPointer(4, GL_UNSIGNED_BYTE, vs, (const void*)((const nk_byte*)vertices + vc));} - - /* iterate over and execute each draw command */ - offset = (const nk_draw_index*)nk_buffer_memory_const(&ebuf); - nk_draw_foreach(cmd, &glfw.ctx, &dev->cmds) - { - if (!cmd->elem_count) continue; - glBindTexture(GL_TEXTURE_2D, (GLuint)cmd->texture.id); - glScissor( - (GLint)(cmd->clip_rect.x * glfw.fb_scale.x), - (GLint)((glfw.height - (GLint)(cmd->clip_rect.y + cmd->clip_rect.h)) * glfw.fb_scale.y), - (GLint)(cmd->clip_rect.w * glfw.fb_scale.x), - (GLint)(cmd->clip_rect.h * glfw.fb_scale.y)); - glDrawElements(GL_TRIANGLES, (GLsizei)cmd->elem_count, GL_UNSIGNED_SHORT, offset); - offset += cmd->elem_count; - } - nk_clear(&glfw.ctx); - nk_buffer_free(&vbuf); - nk_buffer_free(&ebuf); - } - - /* default OpenGL state */ - glDisableClientState(GL_VERTEX_ARRAY); - glDisableClientState(GL_TEXTURE_COORD_ARRAY); - glDisableClientState(GL_COLOR_ARRAY); - - glDisable(GL_CULL_FACE); - glDisable(GL_DEPTH_TEST); - glDisable(GL_SCISSOR_TEST); - glDisable(GL_BLEND); - glDisable(GL_TEXTURE_2D); - - glBindTexture(GL_TEXTURE_2D, 0); - glMatrixMode(GL_MODELVIEW); - glPopMatrix(); - glMatrixMode(GL_PROJECTION); - glPopMatrix(); - glPopAttrib(); -} - -NK_API void -nk_glfw3_char_callback(GLFWwindow *win, unsigned int codepoint) -{ - (void)win; - if (glfw.text_len < NK_GLFW_TEXT_MAX) - glfw.text[glfw.text_len++] = codepoint; -} - -NK_API void -nk_gflw3_scroll_callback(GLFWwindow *win, double xoff, double yoff) -{ - (void)win; (void)xoff; - glfw.scroll.x += (float)xoff; - glfw.scroll.y += (float)yoff; -} - -NK_API void -nk_glfw3_mouse_button_callback(GLFWwindow* window, int button, int action, int mods) -{ - double x, y; - if (button != GLFW_MOUSE_BUTTON_LEFT) return; - glfwGetCursorPos(window, &x, &y); - if (action == GLFW_PRESS) { - double dt = glfwGetTime() - glfw.last_button_click; - if (dt > NK_GLFW_DOUBLE_CLICK_LO && dt < NK_GLFW_DOUBLE_CLICK_HI) { - glfw.is_double_click_down = nk_true; - glfw.double_click_pos = nk_vec2((float)x, (float)y); - } - glfw.last_button_click = glfwGetTime(); - } else glfw.is_double_click_down = nk_false; -} - -NK_INTERN void -nk_glfw3_clipboard_paste(nk_handle usr, struct nk_text_edit *edit) -{ - const char *text = glfwGetClipboardString(glfw.win); - if (text) nk_textedit_paste(edit, text, nk_strlen(text)); - (void)usr; -} - -NK_INTERN void -nk_glfw3_clipboard_copy(nk_handle usr, const char *text, int len) -{ - char *str = 0; - (void)usr; - if (!len) return; - str = (char*)malloc((size_t)len+1); - if (!str) return; - NK_MEMCPY(str, text, (size_t)len); - str[len] = '\0'; - glfwSetClipboardString(glfw.win, str); - free(str); -} - -NK_API struct nk_context* -nk_glfw3_init(GLFWwindow *win, enum nk_glfw_init_state init_state) -{ - glfw.win = win; - if (init_state == NK_GLFW3_INSTALL_CALLBACKS) { - glfwSetScrollCallback(win, nk_gflw3_scroll_callback); - glfwSetCharCallback(win, nk_glfw3_char_callback); - glfwSetMouseButtonCallback(win, nk_glfw3_mouse_button_callback); - } - nk_init_default(&glfw.ctx, 0); - glfw.ctx.clip.copy = nk_glfw3_clipboard_copy; - glfw.ctx.clip.paste = nk_glfw3_clipboard_paste; - glfw.ctx.clip.userdata = nk_handle_ptr(0); - nk_buffer_init_default(&glfw.ogl.cmds); - - glfw.is_double_click_down = nk_false; - glfw.double_click_pos = nk_vec2(0, 0); - - return &glfw.ctx; -} - -NK_API void -nk_glfw3_font_stash_begin(struct nk_font_atlas **atlas) -{ - nk_font_atlas_init_default(&glfw.atlas); - nk_font_atlas_begin(&glfw.atlas); - *atlas = &glfw.atlas; -} - -NK_API void -nk_glfw3_font_stash_end(void) -{ - const void *image; int w, h; - image = nk_font_atlas_bake(&glfw.atlas, &w, &h, NK_FONT_ATLAS_RGBA32); - nk_glfw3_device_upload_atlas(image, w, h); - nk_font_atlas_end(&glfw.atlas, nk_handle_id((int)glfw.ogl.font_tex), &glfw.ogl.null); - if (glfw.atlas.default_font) - nk_style_set_font(&glfw.ctx, &glfw.atlas.default_font->handle); -} - -NK_API void -nk_glfw3_new_frame(void) -{ - int i; - double x, y; - struct nk_context *ctx = &glfw.ctx; - struct GLFWwindow *win = glfw.win; - - glfwGetWindowSize(win, &glfw.width, &glfw.height); - glfwGetFramebufferSize(win, &glfw.display_width, &glfw.display_height); - glfw.fb_scale.x = (float)glfw.display_width/(float)glfw.width; - glfw.fb_scale.y = (float)glfw.display_height/(float)glfw.height; - - nk_input_begin(ctx); - for (i = 0; i < glfw.text_len; ++i) - nk_input_unicode(ctx, glfw.text[i]); - - /* optional grabbing behavior */ - if (ctx->input.mouse.grab) - glfwSetInputMode(glfw.win, GLFW_CURSOR, GLFW_CURSOR_HIDDEN); - else if (ctx->input.mouse.ungrab) - glfwSetInputMode(glfw.win, GLFW_CURSOR, GLFW_CURSOR_NORMAL); - - nk_input_key(ctx, NK_KEY_DEL, glfwGetKey(win, GLFW_KEY_DELETE) == GLFW_PRESS); - nk_input_key(ctx, NK_KEY_ENTER, glfwGetKey(win, GLFW_KEY_ENTER) == GLFW_PRESS); - nk_input_key(ctx, NK_KEY_TAB, glfwGetKey(win, GLFW_KEY_TAB) == GLFW_PRESS); - nk_input_key(ctx, NK_KEY_BACKSPACE, glfwGetKey(win, GLFW_KEY_BACKSPACE) == GLFW_PRESS); - nk_input_key(ctx, NK_KEY_UP, glfwGetKey(win, GLFW_KEY_UP) == GLFW_PRESS); - nk_input_key(ctx, NK_KEY_DOWN, glfwGetKey(win, GLFW_KEY_DOWN) == GLFW_PRESS); - nk_input_key(ctx, NK_KEY_TEXT_START, glfwGetKey(win, GLFW_KEY_HOME) == GLFW_PRESS); - nk_input_key(ctx, NK_KEY_TEXT_END, glfwGetKey(win, GLFW_KEY_END) == GLFW_PRESS); - nk_input_key(ctx, NK_KEY_SCROLL_START, glfwGetKey(win, GLFW_KEY_HOME) == GLFW_PRESS); - nk_input_key(ctx, NK_KEY_SCROLL_END, glfwGetKey(win, GLFW_KEY_END) == GLFW_PRESS); - nk_input_key(ctx, NK_KEY_SCROLL_DOWN, glfwGetKey(win, GLFW_KEY_PAGE_DOWN) == GLFW_PRESS); - nk_input_key(ctx, NK_KEY_SCROLL_UP, glfwGetKey(win, GLFW_KEY_PAGE_UP) == GLFW_PRESS); - nk_input_key(ctx, NK_KEY_SHIFT, glfwGetKey(win, GLFW_KEY_LEFT_SHIFT) == GLFW_PRESS|| - glfwGetKey(win, GLFW_KEY_RIGHT_SHIFT) == GLFW_PRESS); - - if (glfwGetKey(win, GLFW_KEY_LEFT_CONTROL) == GLFW_PRESS || - glfwGetKey(win, GLFW_KEY_RIGHT_CONTROL) == GLFW_PRESS) { - nk_input_key(ctx, NK_KEY_COPY, glfwGetKey(win, GLFW_KEY_C) == GLFW_PRESS); - nk_input_key(ctx, NK_KEY_PASTE, glfwGetKey(win, GLFW_KEY_V) == GLFW_PRESS); - nk_input_key(ctx, NK_KEY_CUT, glfwGetKey(win, GLFW_KEY_X) == GLFW_PRESS); - nk_input_key(ctx, NK_KEY_TEXT_UNDO, glfwGetKey(win, GLFW_KEY_Z) == GLFW_PRESS); - nk_input_key(ctx, NK_KEY_TEXT_REDO, glfwGetKey(win, GLFW_KEY_R) == GLFW_PRESS); - nk_input_key(ctx, NK_KEY_TEXT_WORD_LEFT, glfwGetKey(win, GLFW_KEY_LEFT) == GLFW_PRESS); - nk_input_key(ctx, NK_KEY_TEXT_WORD_RIGHT, glfwGetKey(win, GLFW_KEY_RIGHT) == GLFW_PRESS); - nk_input_key(ctx, NK_KEY_TEXT_LINE_START, glfwGetKey(win, GLFW_KEY_B) == GLFW_PRESS); - nk_input_key(ctx, NK_KEY_TEXT_LINE_END, glfwGetKey(win, GLFW_KEY_E) == GLFW_PRESS); - } else { - nk_input_key(ctx, NK_KEY_LEFT, glfwGetKey(win, GLFW_KEY_LEFT) == GLFW_PRESS); - nk_input_key(ctx, NK_KEY_RIGHT, glfwGetKey(win, GLFW_KEY_RIGHT) == GLFW_PRESS); - nk_input_key(ctx, NK_KEY_COPY, 0); - nk_input_key(ctx, NK_KEY_PASTE, 0); - nk_input_key(ctx, NK_KEY_CUT, 0); - nk_input_key(ctx, NK_KEY_SHIFT, 0); - } - - glfwGetCursorPos(win, &x, &y); - nk_input_motion(ctx, (int)x, (int)y); - if (ctx->input.mouse.grabbed) { - glfwSetCursorPos(glfw.win, (double)ctx->input.mouse.prev.x, (double)ctx->input.mouse.prev.y); - ctx->input.mouse.pos.x = ctx->input.mouse.prev.x; - ctx->input.mouse.pos.y = ctx->input.mouse.prev.y; - } - - nk_input_button(ctx, NK_BUTTON_LEFT, (int)x, (int)y, glfwGetMouseButton(win, GLFW_MOUSE_BUTTON_LEFT) == GLFW_PRESS); - nk_input_button(ctx, NK_BUTTON_MIDDLE, (int)x, (int)y, glfwGetMouseButton(win, GLFW_MOUSE_BUTTON_MIDDLE) == GLFW_PRESS); - nk_input_button(ctx, NK_BUTTON_RIGHT, (int)x, (int)y, glfwGetMouseButton(win, GLFW_MOUSE_BUTTON_RIGHT) == GLFW_PRESS); - nk_input_button(ctx, NK_BUTTON_DOUBLE, (int)glfw.double_click_pos.x, (int)glfw.double_click_pos.y, glfw.is_double_click_down); - nk_input_scroll(ctx, glfw.scroll); - nk_input_end(&glfw.ctx); - glfw.text_len = 0; - glfw.scroll = nk_vec2(0,0); -} - -NK_API -void nk_glfw3_shutdown(void) -{ - struct nk_glfw_device *dev = &glfw.ogl; - nk_font_atlas_clear(&glfw.atlas); - nk_free(&glfw.ctx); - glDeleteTextures(1, &dev->font_tex); - nk_buffer_free(&dev->cmds); - NK_MEMSET(&glfw, 0, sizeof(glfw)); -} - -#endif |