ref: f4b920c44438997d3783c1b4fb734322065f396f
dir: /player/nuklear_glfw_gl3.h/
/*
* Nuklear - 1.32.0 - public domain
* no warrenty implied; use at your own risk.
* authored from 2015-2016 by Micha Mettke
*/
/*
* ==============================================================
*
* API
*
* ===============================================================
*/
#ifndef NK_GLFW_GL3_H_
#define NK_GLFW_GL3_H_
#ifdef __cplusplus
extern "C" {
#endif
typedef void GLvoid;
typedef unsigned int GLuint;
typedef unsigned int GLenum;
typedef unsigned int GLbitfield;
typedef int GLint;
typedef int GLsizei;
typedef float GLfloat;
typedef float GLclampf;
typedef char GLchar;
typedef unsigned char GLboolean;
typedef ptrdiff_t GLintptr;
typedef ptrdiff_t GLsizeiptr;
#define GL_FALSE 0
#define GL_TRUE 1
#define GL_FRAGMENT_SHADER 0x8B30
#define GL_VERTEX_SHADER 0x8B31
#define GL_COMPILE_STATUS 0x8B81
#define GL_LINK_STATUS 0x8B82
#define GL_INFO_LOG_LENGTH 0x8B84
#define GL_ARRAY_BUFFER 0x8892
#define GL_ELEMENT_ARRAY_BUFFER 0x8893
#define GL_TEXTURE_2D 0x0DE1
#define GL_TEXTURE_WRAP_S 0x2802
#define GL_TEXTURE_WRAP_T 0x2803
#define GL_TEXTURE_MAG_FILTER 0x2800
#define GL_TEXTURE_MIN_FILTER 0x2801
#define GL_NEAREST_MIPMAP_NEAREST 0x2700
#define GL_NEAREST_MIPMAP_LINEAR 0x2702
#define GL_LINEAR_MIPMAP_NEAREST 0x2701
#define GL_LINEAR_MIPMAP_LINEAR 0x2703
#define GL_LINEAR 0x2601
#define GL_NEAREST 0x2600
#define GL_REPEAT 0x2901
#define GL_CLAMP 0x2900
#define GL_FLOAT 0x1406
#define GL_UNSIGNED_BYTE 0x1401
#define GL_UNSIGNED_SHORT 0x1403
#define GL_RGBA 0x1908
#define GL_BLEND 0x0BE2
#define GL_FUNC_ADD 0x8006
#define GL_SRC_ALPHA 0x0302
#define GL_ONE_MINUS_SRC_ALPHA 0x0303
#define GL_CULL_FACE 0x0B44
#define GL_DEPTH_TEST 0x0B71
#define GL_SCISSOR_TEST 0x0C11
#define GL_TEXTURE0 0x84C0
#define GL_STREAM_DRAW 0x88E0
#define GL_WRITE_ONLY 0x88B9
#define GL_TRIANGLES 0x0004
#define GL_TRIANGLE_STRIP 0x0005
#define GL_TRIANGLE_FAN 0x0006
#define GL_MAP_READ_BIT 0x0001
#define GL_MAP_WRITE_BIT 0x0002
#define GL_MAP_INVALIDATE_RANGE_BIT 0x0004
#define GL_MAP_INVALIDATE_BUFFER_BIT 0x0008
#define GL_MAP_FLUSH_EXPLICIT_BIT 0x0010
#define GL_MAP_UNSYNCHRONIZED_BIT 0x0020
/*GLuint glCreateProgram (void);
void glDeleteProgram (GLuint program);
void glGetProgramiv (GLuint program, GLenum pname, GLint *params);
GLuint glCreateShader (GLenum type);
void glShaderSource (GLuint shader, GLsizei count, const GLchar *const*string, const GLint *length);
void glCompileShader (GLuint shader);
void glGetShaderiv (GLuint shader, GLenum pname, GLint *params);
void glGetShaderInfoLog (GLuint shader, GLsizei bufSize, GLsizei *length, GLchar *infoLog);
void glAttachShader (GLuint program, GLuint shader);
void glLinkProgram (GLuint program);
void glUseProgram (GLuint program);
void glDeleteShader (GLuint shader);
void glDetachShader (GLuint program, GLuint shader);
GLint glGetUniformLocation (GLuint program, const GLchar *name);
GLint glGetAttribLocation (GLuint program, const GLchar *name);
void glGenBuffers (GLsizei n, GLuint *buffers);
void glDeleteBuffers (GLsizei n, const GLuint *buffers);
void glBindBuffer (GLenum target, GLuint buffer);
void glGenVertexArrays (GLsizei n, GLuint *arrays);
void glDeleteVertexArrays (GLsizei n, const GLuint *arrays);
void glBindVertexArray (GLuint array);
void glDisableVertexAttribArray (GLuint index);
void glEnableVertexAttribArray (GLuint index);
void glVertexAttribPointer (GLuint index, GLint size, GLenum type, GLboolean normalized, GLsizei stride, const void *pointer);
void glGenTextures( GLsizei n, GLuint *textures );
void glDeleteTextures( GLsizei n, const GLuint *textures);
void glBindTexture( GLenum target, GLuint texture );
void glTexParameteri( GLenum target, GLenum pname, GLint param );
void glTexImage2D( GLenum target, GLint level, GLint internalFormat, GLsizei width, GLsizei height,
GLint border, GLenum format, GLenum type, const GLvoid *pixels );
void glActiveTexture( GLenum texture );
void glEnable( GLenum cap );
void glDisable( GLenum cap );
void glAlphaFunc( GLenum func, GLclampf ref );
void glBlendFunc( GLenum sfactor, GLenum dfactor );
void glBlendEquation( GLenum mode );
void glScissor( GLint x, GLint y, GLsizei width, GLsizei height);
void glDrawElements( GLenum mode, GLsizei count, GLenum type, const GLvoid *indices );
void glUniform1f (GLint location, GLfloat v0);
void glUniform2f (GLint location, GLfloat v0, GLfloat v1);
void glUniform3f (GLint location, GLfloat v0, GLfloat v1, GLfloat v2);
void glUniform4f (GLint location, GLfloat v0, GLfloat v1, GLfloat v2, GLfloat v3);
void glUniform1i (GLint location, GLint v0);
void glUniform2i (GLint location, GLint v0, GLint v1);
void glUniform3i (GLint location, GLint v0, GLint v1, GLint v2);
void glUniform4i (GLint location, GLint v0, GLint v1, GLint v2, GLint v3);
void glUniform1fv (GLint location, GLsizei count, const GLfloat *value);
void glUniform2fv (GLint location, GLsizei count, const GLfloat *value);
void glUniform3fv (GLint location, GLsizei count, const GLfloat *value);
void glUniform4fv (GLint location, GLsizei count, const GLfloat *value);
void glUniform1iv (GLint location, GLsizei count, const GLint *value);
void glUniform2iv (GLint location, GLsizei count, const GLint *value);
void glUniform3iv (GLint location, GLsizei count, const GLint *value);
void glUniform4iv (GLint location, GLsizei count, const GLint *value);
void glUniformMatrix2fv (GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
void glUniformMatrix3fv (GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
void glUniformMatrix4fv (GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
void glBufferData (GLenum target, GLsizeiptr size, const void *data, GLenum usage);
void glBufferSubData (GLenum target, GLintptr offset, GLsizeiptr size, const void *data);
#ifndef EMSCRIPTEN
void *glMapBuffer (GLenum target, GLenum access);
#endif
void *glMapBufferRange (GLenum target, GLintptr offset, GLsizeiptr length, GLbitfield access);
GLboolean glUnmapBuffer (GLenum target);*/
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_shutdown(void);
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, int max_vertex_buffer, int max_element_buffer);
NK_API void nk_glfw3_device_destroy(void);
NK_API void nk_glfw3_device_create(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);
NK_API void nk_glfw3_mouse_button_callback(GLFWwindow *win, int button, int action, int mods);
#endif
/*
* ==============================================================
*
* IMPLEMENTATION
*
* ===============================================================
*/
#ifdef NK_GLFW_GL3_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 vbo, vao, ebo;
GLuint prog;
GLuint vert_shdr;
GLuint frag_shdr;
GLint attrib_pos;
GLint attrib_uv;
GLint attrib_col;
GLint uniform_tex;
GLint uniform_proj;
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;
} glfw;
#if defined(USE_GLES3)
#if defined(__APPLE__)
#define NK_SHADER_VERSION "#version 150\n"
#else
#define NK_SHADER_VERSION "#version 300 es\n"
#endif
#define ATTR "in "
#define VARYING "out "
#define INVARYNG "in "
#else
#define NK_SHADER_VERSION ""
#define ATTR "attribute "
#define VARYING "varying "
#define INVARYNG "varying "
#endif
static GLuint LoadShader(GLenum type, const char *shaderSrc)
{
GLint compiled;
GLuint shader = glCreateShader(type);
if (shader == 0)
return 0;
glShaderSource(shader, 1, &shaderSrc, NULL);
glCompileShader(shader);
glGetShaderiv(shader, GL_COMPILE_STATUS, &compiled);
if (!compiled)
{
GLint infoLen = 0;
glGetShaderiv(shader, GL_INFO_LOG_LENGTH, &infoLen);
if (infoLen > 1)
{
char *infoLog = (char*)malloc(sizeof(char)*infoLen);
glGetShaderInfoLog (shader, infoLen, NULL, infoLog);
printf("error: compiling shader failed:\n%s\n", infoLog);
free(infoLog);
}
glDeleteShader(shader);
return 0;
}
return shader;
}
NK_API void
nk_glfw3_device_create(void)
{
GLint status;
static const GLchar *vertex_shader =
NK_SHADER_VERSION
"uniform mat4 ProjMtx;\n"
ATTR "vec2 Position;\n"
ATTR "vec2 TexCoord;\n"
ATTR "vec4 Color;\n"
VARYING "vec2 Frag_UV;\n"
VARYING "vec4 Frag_Color;\n"
"void main() {\n"
" Frag_UV = TexCoord;\n"
" Frag_Color = Color;\n"
" gl_Position = ProjMtx * vec4(Position.xy, 0, 1);\n"
"}\n";
static const GLchar *fragment_shader =
NK_SHADER_VERSION
#if defined(USE_GLES3)
"precision mediump float;\n"
#endif
"uniform sampler2D Texture;\n"
INVARYNG "vec2 Frag_UV;\n"
INVARYNG "vec4 Frag_Color;\n"
#if defined(USE_GLES3)
"out vec4 Out_Color;\n"
#endif
"void main(){\n"
#if defined(USE_GLES3)
" Out_Color = Frag_Color * texture(Texture, Frag_UV.st);\n"
#else
" gl_FragColor = Frag_Color * texture2D(Texture, Frag_UV.st);\n"
#endif
"}\n";
struct nk_glfw_device *dev = &glfw.ogl;
nk_buffer_init_default(&dev->cmds);
dev->prog = glCreateProgram();
dev->vert_shdr = LoadShader(GL_VERTEX_SHADER, vertex_shader);
dev->frag_shdr = LoadShader(GL_FRAGMENT_SHADER, fragment_shader);
glAttachShader(dev->prog, dev->vert_shdr);
glAttachShader(dev->prog, dev->frag_shdr);
glLinkProgram(dev->prog);
glGetProgramiv(dev->prog, GL_LINK_STATUS, &status);
assert(status == GL_TRUE);
dev->uniform_tex = glGetUniformLocation(dev->prog, "Texture");
dev->uniform_proj = glGetUniformLocation(dev->prog, "ProjMtx");
dev->attrib_pos = glGetAttribLocation(dev->prog, "Position");
dev->attrib_uv = glGetAttribLocation(dev->prog, "TexCoord");
dev->attrib_col = glGetAttribLocation(dev->prog, "Color");
{
/* buffer setup */
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);
glGenBuffers(1, &dev->vbo);
glGenBuffers(1, &dev->ebo);
glGenVertexArrays(1, &dev->vao);
glBindVertexArray(dev->vao);
glBindBuffer(GL_ARRAY_BUFFER, dev->vbo);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, dev->ebo);
glEnableVertexAttribArray((GLuint)dev->attrib_pos);
glEnableVertexAttribArray((GLuint)dev->attrib_uv);
glEnableVertexAttribArray((GLuint)dev->attrib_col);
glVertexAttribPointer((GLuint)dev->attrib_pos, 2, GL_FLOAT, GL_FALSE, vs, (void*)vp);
glVertexAttribPointer((GLuint)dev->attrib_uv, 2, GL_FLOAT, GL_FALSE, vs, (void*)vt);
glVertexAttribPointer((GLuint)dev->attrib_col, 4, GL_UNSIGNED_BYTE, GL_TRUE, vs, (void*)vc);
}
glBindTexture(GL_TEXTURE_2D, 0);
glBindBuffer(GL_ARRAY_BUFFER, 0);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
glBindVertexArray(0);
}
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_device_destroy(void)
{
struct nk_glfw_device *dev = &glfw.ogl;
glDetachShader(dev->prog, dev->vert_shdr);
glDetachShader(dev->prog, dev->frag_shdr);
glDeleteShader(dev->vert_shdr);
glDeleteShader(dev->frag_shdr);
glDeleteProgram(dev->prog);
glDeleteTextures(1, &dev->font_tex);
glDeleteBuffers(1, &dev->vbo);
glDeleteBuffers(1, &dev->ebo);
nk_buffer_free(&dev->cmds);
}
NK_API void
nk_glfw3_render(enum nk_anti_aliasing AA, int max_vertex_buffer, int max_element_buffer)
{
struct nk_glfw_device *dev = &glfw.ogl;
struct nk_buffer vbuf, ebuf;
GLfloat ortho[4][4] = {
{2.0f, 0.0f, 0.0f, 0.0f},
{0.0f,-2.0f, 0.0f, 0.0f},
{0.0f, 0.0f,-1.0f, 0.0f},
{-1.0f,1.0f, 0.0f, 1.0f},
};
ortho[0][0] /= (GLfloat)glfw.width;
ortho[1][1] /= (GLfloat)glfw.height;
/* setup global state */
glEnable(GL_BLEND);
glBlendEquation(GL_FUNC_ADD);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glDisable(GL_CULL_FACE);
glDisable(GL_DEPTH_TEST);
glEnable(GL_SCISSOR_TEST);
glActiveTexture(GL_TEXTURE0);
/* setup program */
glUseProgram(dev->prog);
glUniform1i(dev->uniform_tex, 0);
glUniformMatrix4fv(dev->uniform_proj, 1, GL_FALSE, &ortho[0][0]);
//glViewport(0,0,(GLsizei)glfw.display_width,(GLsizei)glfw.display_height);
{
/* convert from command queue into draw list and draw to screen */
const struct nk_draw_command *cmd;
void *vertices, *elements;
const nk_draw_index *offset = NULL;
/* allocate vertex and element buffer */
glBindVertexArray(dev->vao);
glBindBuffer(GL_ARRAY_BUFFER, dev->vbo);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, dev->ebo);
glBufferData(GL_ARRAY_BUFFER, max_vertex_buffer, NULL, GL_STREAM_DRAW);
glBufferData(GL_ELEMENT_ARRAY_BUFFER, max_element_buffer, NULL, GL_STREAM_DRAW);
/* load draw vertices & elements directly into vertex + element buffer */
//vertices = glMapBuffer(GL_ARRAY_BUFFER, GL_WRITE_ONLY);
//elements = glMapBuffer(GL_ELEMENT_ARRAY_BUFFER, GL_WRITE_ONLY);
vertices = glMapBufferRange(GL_ARRAY_BUFFER, 0, max_vertex_buffer, GL_MAP_WRITE_BIT | GL_MAP_INVALIDATE_BUFFER_BIT);
elements = glMapBufferRange(GL_ELEMENT_ARRAY_BUFFER, 0, max_element_buffer, GL_MAP_WRITE_BIT | GL_MAP_INVALIDATE_BUFFER_BIT);
{
/* 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;
/* setup buffers to load vertices and elements */
nk_buffer_init_fixed(&vbuf, vertices, (size_t)max_vertex_buffer);
nk_buffer_init_fixed(&ebuf, elements, (size_t)max_element_buffer);
nk_convert(&glfw.ctx, &dev->cmds, &vbuf, &ebuf, &config);
}
glUnmapBuffer(GL_ARRAY_BUFFER);
glUnmapBuffer(GL_ELEMENT_ARRAY_BUFFER);
/* iterate over and execute each draw command */
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);
}
/* default OpenGL state */
glUseProgram(0);
glBindBuffer(GL_ARRAY_BUFFER, 0);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
glBindVertexArray(0);
glDisable(GL_BLEND);
glDisable(GL_SCISSOR_TEST);
}
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)
nk_input_button(&glfw.ctx, NK_BUTTON_DOUBLE, (int)x, (int)y, nk_true);
glfw.last_button_click = glfwGetTime();
} else nk_input_button(&glfw.ctx, NK_BUTTON_DOUBLE, (int)x, (int)y, nk_false);
}
NK_INTERN void
nk_glfw3_clipbard_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_clipbard_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;
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_clipbard_copy;
glfw.ctx.clip.paste = nk_glfw3_clipbard_paste;
glfw.ctx.clip.userdata = nk_handle_ptr(0);
glfw.last_button_click = 0;
nk_glfw3_device_create();
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;
/*glfw.width = winWidth;
glfw.height = winHeight;
glfw.display_width = width;
glfw.display_height = height;*/
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]);
#if NK_GLFW_GL3_MOUSE_GRABBING
/* 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);
#endif
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);
//x = mx;
//y = my;
nk_input_motion(ctx, (int)x, (int)y);
#if NK_GLFW_GL3_MOUSE_GRABBING
if (ctx->input.mouse.grabbed) {
glfwSetCursorPos(glfw.win, ctx->input.mouse.prev.x, 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;
}
#endif
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_LEFT, (int)x, (int)y, mkeys & 1);
nk_input_button(ctx, NK_BUTTON_MIDDLE, (int)x, (int)y, mkeys & 2);
nk_input_button(ctx, NK_BUTTON_RIGHT, (int)x, (int)y, mkeys & 4);*/
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)
{
nk_font_atlas_clear(&glfw.atlas);
nk_free(&glfw.ctx);
nk_glfw3_device_destroy();
memset(&glfw, 0, sizeof(glfw));
}
#ifdef __cplusplus
}
#endif
#endif