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shaders

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This commit is contained in:
John Alanbrook
2023-05-12 18:22:05 +00:00
parent eb3e576521
commit e0f3985b00
84 changed files with 49281 additions and 19388 deletions
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73
source/engine/thirdparty/Nuklear/nuklear.h vendored
View File

@@ -372,7 +372,7 @@ extern "C" {
#elif (defined(_WIN32) || defined(WIN32)) && defined(_MSC_VER)
#define NK_SIZE_TYPE unsigned __int32
#elif defined(__GNUC__) || defined(__clang__)
#if defined(__x86_64__) || defined(__ppc64__)
#if defined(__x86_64__) || defined(__ppc64__) || defined(__aarch64__)
#define NK_SIZE_TYPE unsigned long
#else
#define NK_SIZE_TYPE unsigned int
@@ -387,7 +387,7 @@ extern "C" {
#elif (defined(_WIN32) || defined(WIN32)) && defined(_MSC_VER)
#define NK_POINTER_TYPE unsigned __int32
#elif defined(__GNUC__) || defined(__clang__)
#if defined(__x86_64__) || defined(__ppc64__)
#if defined(__x86_64__) || defined(__ppc64__) || defined(__aarch64__)
#define NK_POINTER_TYPE unsigned long
#else
#define NK_POINTER_TYPE unsigned int
@@ -432,8 +432,8 @@ NK_STATIC_ASSERT(sizeof(nk_int) == 4);
NK_STATIC_ASSERT(sizeof(nk_byte) == 1);
NK_STATIC_ASSERT(sizeof(nk_flags) >= 4);
NK_STATIC_ASSERT(sizeof(nk_rune) >= 4);
//NK_STATIC_ASSERT(sizeof(nk_size) >= sizeof(void*));
//NK_STATIC_ASSERT(sizeof(nk_ptr) >= sizeof(void*));
NK_STATIC_ASSERT(sizeof(nk_size) >= sizeof(void*));
NK_STATIC_ASSERT(sizeof(nk_ptr) >= sizeof(void*));
#ifdef NK_INCLUDE_STANDARD_BOOL
NK_STATIC_ASSERT(sizeof(nk_bool) == sizeof(bool));
#else
@@ -1127,7 +1127,7 @@ NK_API void nk_input_end(struct nk_context*);
/// cfg.curve_segment_count = 22;
/// cfg.arc_segment_count = 22;
/// cfg.global_alpha = 1.0f;
/// cfg.null = dev->null;
/// cfg.tex_null = dev->tex_null;
/// //
/// // setup buffers and convert
/// struct nk_buffer cmds, verts, idx;
@@ -1177,7 +1177,7 @@ struct nk_convert_config {
unsigned circle_segment_count; /* number of segments used for circles: default to 22 */
unsigned arc_segment_count; /* number of segments used for arcs: default to 22 */
unsigned curve_segment_count; /* number of segments used for curves: default to 22 */
struct nk_draw_null_texture null; /* handle to texture with a white pixel for shape drawing */
struct nk_draw_null_texture tex_null; /* handle to texture with a white pixel for shape drawing */
const struct nk_draw_vertex_layout_element *vertex_layout; /* describes the vertex output format and packing */
nk_size vertex_size; /* sizeof one vertex for vertex packing */
nk_size vertex_alignment; /* vertex alignment: Can be obtained by NK_ALIGNOF */
@@ -6078,7 +6078,6 @@ NK_LIB void nk_property(struct nk_context *ctx, const char *name, struct nk_prop
#define STB_RECT_PACK_IMPLEMENTATION
#define STB_TRUETYPE_IMPLEMENTATION
#define STBTT_STATIC
/* Allow consumer to define own STBTT_malloc/STBTT_free, and use the font atlas' allocator otherwise */
#ifndef STBTT_malloc
@@ -8440,7 +8439,6 @@ nk_str_append_text_utf8(struct nk_str *str, const char *text, int len)
NK_API int
nk_str_append_str_utf8(struct nk_str *str, const char *text)
{
int runes = 0;
int byte_len = 0;
int num_runes = 0;
int glyph_len = 0;
@@ -8454,7 +8452,7 @@ nk_str_append_str_utf8(struct nk_str *str, const char *text)
num_runes++;
}
nk_str_append_text_char(str, text, byte_len);
return runes;
return num_runes;
}
NK_API int
nk_str_append_text_runes(struct nk_str *str, const nk_rune *text, int len)
@@ -8569,7 +8567,6 @@ nk_str_insert_text_utf8(struct nk_str *str, int pos, const char *text, int len)
NK_API int
nk_str_insert_str_utf8(struct nk_str *str, int pos, const char *text)
{
int runes = 0;
int byte_len = 0;
int num_runes = 0;
int glyph_len = 0;
@@ -8583,7 +8580,7 @@ nk_str_insert_str_utf8(struct nk_str *str, int pos, const char *text)
num_runes++;
}
nk_str_insert_at_rune(str, pos, text, byte_len);
return runes;
return num_runes;
}
NK_API int
nk_str_insert_text_runes(struct nk_str *str, int pos, const nk_rune *runes, int len)
@@ -9564,7 +9561,7 @@ nk_draw_list_add_clip(struct nk_draw_list *list, struct nk_rect rect)
NK_ASSERT(list);
if (!list) return;
if (!list->cmd_count) {
nk_draw_list_push_command(list, rect, list->config.null.texture);
nk_draw_list_push_command(list, rect, list->config.tex_null.texture);
} else {
struct nk_draw_command *prev = nk_draw_list_command_last(list);
if (prev->elem_count == 0)
@@ -9919,7 +9916,7 @@ nk_draw_list_stroke_poly_line(struct nk_draw_list *list, const struct nk_vec2 *p
/* fill vertices */
for (i = 0; i < points_count; ++i) {
const struct nk_vec2 uv = list->config.null.uv;
const struct nk_vec2 uv = list->config.tex_null.uv;
vtx = nk_draw_vertex(vtx, &list->config, points[i], uv, col);
vtx = nk_draw_vertex(vtx, &list->config, temp[i*2+0], uv, col_trans);
vtx = nk_draw_vertex(vtx, &list->config, temp[i*2+1], uv, col_trans);
@@ -9984,7 +9981,7 @@ nk_draw_list_stroke_poly_line(struct nk_draw_list *list, const struct nk_vec2 *p
/* add vertices */
for (i = 0; i < points_count; ++i) {
const struct nk_vec2 uv = list->config.null.uv;
const struct nk_vec2 uv = list->config.tex_null.uv;
vtx = nk_draw_vertex(vtx, &list->config, temp[i*4+0], uv, col_trans);
vtx = nk_draw_vertex(vtx, &list->config, temp[i*4+1], uv, col);
vtx = nk_draw_vertex(vtx, &list->config, temp[i*4+2], uv, col);
@@ -10005,7 +10002,7 @@ nk_draw_list_stroke_poly_line(struct nk_draw_list *list, const struct nk_vec2 *p
for (i1 = 0; i1 < count; ++i1) {
float dx, dy;
const struct nk_vec2 uv = list->config.null.uv;
const struct nk_vec2 uv = list->config.tex_null.uv;
const nk_size i2 = ((i1+1) == points_count) ? 0 : i1 + 1;
const struct nk_vec2 p1 = points[i1];
const struct nk_vec2 p2 = points[i2];
@@ -10115,7 +10112,7 @@ nk_draw_list_fill_poly_convex(struct nk_draw_list *list,
/* add vertices + indexes */
for (i0 = points_count-1, i1 = 0; i1 < points_count; i0 = i1++) {
const struct nk_vec2 uv = list->config.null.uv;
const struct nk_vec2 uv = list->config.tex_null.uv;
struct nk_vec2 n0 = normals[i0];
struct nk_vec2 n1 = normals[i1];
struct nk_vec2 dm = nk_vec2_muls(nk_vec2_add(n0, n1), 0.5f);
@@ -10152,7 +10149,7 @@ nk_draw_list_fill_poly_convex(struct nk_draw_list *list,
if (!vtx || !ids) return;
for (i = 0; i < vtx_count; ++i)
vtx = nk_draw_vertex(vtx, &list->config, points[i], list->config.null.uv, col);
vtx = nk_draw_vertex(vtx, &list->config, points[i], list->config.tex_null.uv, col);
for (i = 2; i < points_count; ++i) {
ids[0] = (nk_draw_index)index;
ids[1] = (nk_draw_index)(index+ i - 1);
@@ -10181,8 +10178,8 @@ nk_draw_list_path_line_to(struct nk_draw_list *list, struct nk_vec2 pos)
nk_draw_list_add_clip(list, nk_null_rect);
cmd = nk_draw_list_command_last(list);
if (cmd && cmd->texture.ptr != list->config.null.texture.ptr)
nk_draw_list_push_image(list, list->config.null.texture);
if (cmd && cmd->texture.ptr != list->config.tex_null.texture.ptr)
nk_draw_list_push_image(list, list->config.tex_null.texture);
points = nk_draw_list_alloc_path(list, 1);
if (!points) return;
@@ -10384,7 +10381,7 @@ nk_draw_list_fill_rect_multi_color(struct nk_draw_list *list, struct nk_rect rec
NK_ASSERT(list);
if (!list) return;
nk_draw_list_push_image(list, list->config.null.texture);
nk_draw_list_push_image(list, list->config.tex_null.texture);
index = (nk_draw_index)list->vertex_count;
vtx = nk_draw_list_alloc_vertices(list, 4);
idx = nk_draw_list_alloc_elements(list, 6);
@@ -10394,10 +10391,10 @@ nk_draw_list_fill_rect_multi_color(struct nk_draw_list *list, struct nk_rect rec
idx[2] = (nk_draw_index)(index+2); idx[3] = (nk_draw_index)(index+0);
idx[4] = (nk_draw_index)(index+2); idx[5] = (nk_draw_index)(index+3);
vtx = nk_draw_vertex(vtx, &list->config, nk_vec2(rect.x, rect.y), list->config.null.uv, col_left);
vtx = nk_draw_vertex(vtx, &list->config, nk_vec2(rect.x + rect.w, rect.y), list->config.null.uv, col_top);
vtx = nk_draw_vertex(vtx, &list->config, nk_vec2(rect.x + rect.w, rect.y + rect.h), list->config.null.uv, col_right);
vtx = nk_draw_vertex(vtx, &list->config, nk_vec2(rect.x, rect.y + rect.h), list->config.null.uv, col_bottom);
vtx = nk_draw_vertex(vtx, &list->config, nk_vec2(rect.x, rect.y), list->config.tex_null.uv, col_left);
vtx = nk_draw_vertex(vtx, &list->config, nk_vec2(rect.x + rect.w, rect.y), list->config.tex_null.uv, col_top);
vtx = nk_draw_vertex(vtx, &list->config, nk_vec2(rect.x + rect.w, rect.y + rect.h), list->config.tex_null.uv, col_right);
vtx = nk_draw_vertex(vtx, &list->config, nk_vec2(rect.x, rect.y + rect.h), list->config.tex_null.uv, col_bottom);
}
NK_API void
nk_draw_list_fill_triangle(struct nk_draw_list *list, struct nk_vec2 a,
@@ -16513,7 +16510,7 @@ nk_font_chinese_glyph_ranges(void)
0x3000, 0x30FF,
0x31F0, 0x31FF,
0xFF00, 0xFFEF,
0x4e00, 0x9FAF,
0x4E00, 0x9FAF,
0
};
return ranges;
@@ -16622,7 +16619,7 @@ nk_font_bake_pack(struct nk_font_baker *baker,
struct stbtt_fontinfo *font_info = &baker->build[i++].info;
font_info->userdata = alloc;
if (!stbtt_InitFont(font_info, (const unsigned char*)it->ttf_blob, 0))
if (!stbtt_InitFont(font_info, (const unsigned char*)it->ttf_blob, stbtt_GetFontOffsetForIndex((const unsigned char*)it->ttf_blob, 0)))
return nk_false;
} while ((it = it->n) != config_iter);
}
@@ -17704,20 +17701,20 @@ failed:
}
NK_API void
nk_font_atlas_end(struct nk_font_atlas *atlas, nk_handle texture,
struct nk_draw_null_texture *null)
struct nk_draw_null_texture *tex_null)
{
int i = 0;
struct nk_font *font_iter;
NK_ASSERT(atlas);
if (!atlas) {
if (!null) return;
null->texture = texture;
null->uv = nk_vec2(0.5f,0.5f);
if (!tex_null) return;
tex_null->texture = texture;
tex_null->uv = nk_vec2(0.5f,0.5f);
}
if (null) {
null->texture = texture;
null->uv.x = (atlas->custom.x + 0.5f)/(float)atlas->tex_width;
null->uv.y = (atlas->custom.y + 0.5f)/(float)atlas->tex_height;
if (tex_null) {
tex_null->texture = texture;
tex_null->uv.x = (atlas->custom.x + 0.5f)/(float)atlas->tex_width;
tex_null->uv.y = (atlas->custom.y + 0.5f)/(float)atlas->tex_height;
}
for (font_iter = atlas->fonts; font_iter; font_iter = font_iter->next) {
font_iter->texture = texture;
@@ -26163,7 +26160,7 @@ nk_textedit_text(struct nk_text_edit *state, const char *text, int total_len)
text+text_len, 1))
{
nk_textedit_makeundo_insert(state, state->cursor, 1);
++state->cursor;
state->cursor = NK_MIN(state->cursor + 1, state->string.len);
state->has_preferred_x = 0;
}
}
@@ -29657,6 +29654,12 @@ nk_tooltipfv(struct nk_context *ctx, const char *fmt, va_list args)
/// - [y]: Minor version with non-breaking API and library changes
/// - [z]: Patch version with no direct changes to the API
///
/// - 2022/12/17 (4.10.5) - Fix nk_font_bake_pack() using TTC font offset incorrectly
/// - 2022/10/24 (4.10.4) - Fix nk_str_{append,insert}_str_utf8 always returning 0
/// - 2022/09/03 (4.10.3) - Renamed the `null` texture variable to `tex_null`
/// - 2022/08/01 (4.10.2) - Fix Apple Silicon with incorrect NK_SITE_TYPE and NK_POINTER_TYPE
/// - 2022/08/01 (4.10.1) - Fix cursor jumping back to beginning of text when typing more than
/// nk_edit_xxx limit
/// - 2022/05/27 (4.10.0) - Add nk_input_has_mouse_click_in_button_rect() to fix window move bug
/// - 2022/04/18 (4.9.7) - Change button behavior when NK_BUTTON_TRIGGER_ON_RELEASE is defined to
/// only trigger when the mouse position was inside the same button on down

500
source/engine/thirdparty/Nuklear/nuklear_glfw_gl3.h vendored
View File

@@ -1,500 +0,0 @@
/*
* 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_
#include <glad/gl.h>
#include <GLFW/glfw3.h>
enum nk_glfw_init_state{
NK_GLFW3_DEFAULT=0,
NK_GLFW3_INSTALL_CALLBACKS
};
#ifndef NK_GLFW_TEXT_MAX
#define NK_GLFW_TEXT_MAX 256
#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 {
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;
};
NK_API struct nk_context* nk_glfw3_init(struct nk_glfw* glfw, GLFWwindow *win, enum nk_glfw_init_state);
NK_API void nk_glfw3_shutdown(struct nk_glfw* glfw);
NK_API void nk_glfw3_font_stash_begin(struct nk_glfw* glfw, struct nk_font_atlas **atlas);
NK_API void nk_glfw3_font_stash_end(struct nk_glfw* glfw);
NK_API void nk_glfw3_new_frame(struct nk_glfw* glfw);
NK_API void nk_glfw3_render(struct nk_glfw* glfw, enum nk_anti_aliasing, int max_vertex_buffer, int max_element_buffer);
NK_API void nk_glfw3_device_destroy(struct nk_glfw* glfw);
NK_API void nk_glfw3_device_create(struct nk_glfw* glfw);
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_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_vertex {
float position[2];
float uv[2];
nk_byte col[4];
};
#ifdef __APPLE__
#define NK_SHADER_VERSION "#version 150\n"
#else
#define NK_SHADER_VERSION "#version 300 es\n"
#endif
NK_API void
nk_glfw3_device_create(struct nk_glfw* glfw)
{
GLint status;
static const GLchar *vertex_shader =
NK_SHADER_VERSION
"uniform mat4 ProjMtx;\n"
"in vec2 Position;\n"
"in vec2 TexCoord;\n"
"in vec4 Color;\n"
"out vec2 Frag_UV;\n"
"out 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
"precision mediump float;\n"
"uniform sampler2D Texture;\n"
"in vec2 Frag_UV;\n"
"in vec4 Frag_Color;\n"
"out vec4 Out_Color;\n"
"void main(){\n"
" Out_Color = Frag_Color * texture(Texture, Frag_UV.st);\n"
"}\n";
struct nk_glfw_device *dev = &glfw->ogl;
nk_buffer_init_default(&dev->cmds);
dev->prog = glCreateProgram();
dev->vert_shdr = glCreateShader(GL_VERTEX_SHADER);
dev->frag_shdr = glCreateShader(GL_FRAGMENT_SHADER);
glShaderSource(dev->vert_shdr, 1, &vertex_shader, 0);
glShaderSource(dev->frag_shdr, 1, &fragment_shader, 0);
glCompileShader(dev->vert_shdr);
glCompileShader(dev->frag_shdr);
glGetShaderiv(dev->vert_shdr, GL_COMPILE_STATUS, &status);
assert(status == GL_TRUE);
glGetShaderiv(dev->frag_shdr, GL_COMPILE_STATUS, &status);
assert(status == GL_TRUE);
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(struct nk_glfw* glfw, 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(struct nk_glfw* glfw)
{
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(struct nk_glfw* glfw, 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);
{
/* 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}
};
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);
nk_buffer_clear(&dev->cmds);
}
/* 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)
{
struct nk_glfw* glfw = glfwGetWindowUserPointer(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)
{
struct nk_glfw* glfw = glfwGetWindowUserPointer(win);
(void)xoff;
glfw->scroll.x += (float)xoff;
glfw->scroll.y += (float)yoff;
}
NK_API void
nk_glfw3_mouse_button_callback(GLFWwindow* win, int button, int action, int mods)
{
struct nk_glfw* glfw = glfwGetWindowUserPointer(win);
double x, y;
NK_UNUSED(mods);
if (button != GLFW_MOUSE_BUTTON_LEFT) return;
glfwGetCursorPos(win, &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)
{
struct nk_glfw* glfw = (struct nk_glfw*)usr.ptr;
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)
{
struct nk_glfw* glfw = (struct nk_glfw*)usr.ptr;
char *str = 0;
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(struct nk_glfw* glfw, GLFWwindow *win, enum nk_glfw_init_state init_state)
{
glfwSetWindowUserPointer(win, glfw);
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(&glfw);
glfw->last_button_click = 0;
nk_glfw3_device_create(glfw);
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_glfw* glfw, 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(struct nk_glfw* glfw)
{
const void *image; int w, h;
image = nk_font_atlas_bake(&glfw->atlas, &w, &h, NK_FONT_ATLAS_RGBA32);
nk_glfw3_device_upload_atlas(glfw, 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(struct nk_glfw* glfw)
{
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]);
#ifdef 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);
nk_input_motion(ctx, (int)x, (int)y);
#ifdef 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_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(struct nk_glfw* glfw)
{
nk_font_atlas_clear(&glfw->atlas);
nk_free(&glfw->ctx);
nk_glfw3_device_destroy(glfw);
memset(glfw, 0, sizeof(*glfw));
}
#endif

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#if defined(SOKOL_IMPL) && !defined(SOKOL_MEMTRACK_IMPL)
#define SOKOL_MEMTRACK_IMPL
#endif
#ifndef SOKOL_MEMTRACK_INCLUDED
/*
sokol_memtrack.h -- memory allocation wrapper to track memory usage
of sokol libraries
Project URL: https://github.com/floooh/sokol
Optionally provide the following defines with your own implementations:
SOKOL_MEMTRACK_API_DECL - public function declaration prefix (default: extern)
SOKOL_API_DECL - same as SOKOL_MEMTRACK_API_DECL
SOKOL_API_IMPL - public function implementation prefix (default: -)
If sokol_memtrack.h is compiled as a DLL, define the following before
including the declaration or implementation:
SOKOL_DLL
USAGE
=====
Just plug the malloc/free wrapper functions into the desc.allocator
struct provided by most sokol header setup functions:
sg_setup(&(sg_desc){
//...
.allocator = {
.alloc = smemtrack_alloc,
.free = smemtrack_free,
}
});
Then call smemtrack_info() to get information about current number
of allocations and overall allocation size:
const smemtrack_info_t info = smemtrack_info();
const int num_allocs = info.num_allocs;
const int num_bytes = info.num_bytes;
Note the sokol_memtrack.h can only track allocations issued by
the sokol headers, not allocations that happen under the hood
in system libraries.
LICENSE
=======
zlib/libpng license
Copyright (c) 2018 Andre Weissflog
This software is provided 'as-is', without any express or implied warranty.
In no event will the authors be held liable for any damages arising from the
use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not
claim that you wrote the original software. If you use this software in a
product, an acknowledgment in the product documentation would be
appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not
be misrepresented as being the original software.
3. This notice may not be removed or altered from any source
distribution.
*/
#define SOKOL_MEMTRACK_INCLUDED (1)
#include <stdint.h>
#include <stddef.h> // size_t
#if defined(SOKOL_API_DECL) && !defined(SOKOL_MEMTRACK_API_DECL)
#define SOKOL_MEMTRACK_API_DECL SOKOL_API_DECL
#endif
#ifndef SOKOL_MEMTRACK_API_DECL
#if defined(_WIN32) && defined(SOKOL_DLL) && defined(SOKOL_MEMTRACK_IMPL)
#define SOKOL_MEMTRACK_API_DECL __declspec(dllexport)
#elif defined(_WIN32) && defined(SOKOL_DLL)
#define SOKOL_MEMTRACK_API_DECL __declspec(dllimport)
#else
#define SOKOL_MEMTRACK_API_DECL extern
#endif
#endif
#ifdef __cplusplus
extern "C" {
#endif
typedef struct smemtrack_info_t {
int num_allocs;
int num_bytes;
} smemtrack_info_t;
SOKOL_MEMTRACK_API_DECL smemtrack_info_t smemtrack_info(void);
SOKOL_MEMTRACK_API_DECL void* smemtrack_alloc(size_t size, void* user_data);
SOKOL_MEMTRACK_API_DECL void smemtrack_free(void* ptr, void* user_data);
#ifdef __cplusplus
} /* extern "C" */
#endif
#endif /* SOKOL_MEMTRACK_INCLUDED */
/*=== IMPLEMENTATION =========================================================*/
#ifdef SOKOL_MEMTRACK_IMPL
#define SOKOL_MEMTRACK_IMPL_INCLUDED (1)
#include <stdlib.h> // malloc, free
#include <string.h> // memset
#ifndef SOKOL_API_IMPL
#define SOKOL_API_IMPL
#endif
#ifndef SOKOL_DEBUG
#ifndef NDEBUG
#define SOKOL_DEBUG
#endif
#endif
#ifndef _SOKOL_PRIVATE
#if defined(__GNUC__) || defined(__clang__)
#define _SOKOL_PRIVATE __attribute__((unused)) static
#else
#define _SOKOL_PRIVATE static
#endif
#endif
// per-allocation header used to keep track of the allocation size
#define _SMEMTRACK_HEADER_SIZE (16)
static struct {
smemtrack_info_t state;
} _smemtrack;
SOKOL_API_IMPL void* smemtrack_alloc(size_t size, void* user_data) {
(void)user_data;
uint8_t* ptr = (uint8_t*) malloc(size + _SMEMTRACK_HEADER_SIZE);
if (ptr) {
// store allocation size (for allocation size tracking)
*(size_t*)ptr = size;
_smemtrack.state.num_allocs++;
_smemtrack.state.num_bytes += (int) size;
return ptr + _SMEMTRACK_HEADER_SIZE;
}
else {
// allocation failed, return null pointer
return ptr;
}
}
SOKOL_API_IMPL void smemtrack_free(void* ptr, void* user_data) {
(void)user_data;
if (ptr) {
uint8_t* alloc_ptr = ((uint8_t*)ptr) - _SMEMTRACK_HEADER_SIZE;
size_t size = *(size_t*)alloc_ptr;
_smemtrack.state.num_allocs--;
_smemtrack.state.num_bytes -= (int) size;
free(alloc_ptr);
}
}
SOKOL_API_IMPL smemtrack_info_t smemtrack_info(void) {
return _smemtrack.state;
}
#endif /* SOKOL_MEMTRACK_IMPL */

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