src/screen.cpp

   1 #include "common.h"
   2 #include "screen.h"
   3
   4 #include "gl_core44.h"
   5 #include <fcntl.h> // for access(2)
   6 #include <unistd.h> // for access(2)
   7
   8 #include "bufferbuilder.h"
   9 #include "shaderprogram.h"
  10
  11
  12
  13 #define BASICTEX_VERT "shaders/basictex_vert.glsl"
  14 #define BASICTEX_FRAG "shaders/basictex_frag.glsl"
  15
  16 using namespace IPDF;
  17 using namespace std;
  18
  19 #ifndef __MINGW32__
  20 static void opengl_debug_callback(GLenum source, GLenum type, GLuint id, GLenum severity, GLsizei length, const GLchar* msg, const void *data)
  21 {
  22         // Don't print out gl Errors we generated.
  23         if (source == GL_DEBUG_SOURCE_APPLICATION) return;
  24         //Error("OpenGL Error (%d): %s", id, msg);
  25         // Spams this message on fglrx, disabling for now because it's damn annoying.
  26         // ERROR: opengl_debug_callback (screen.cpp:21) - OpenGL Error (1011): glObjectLabel failed because (depending on the operation) a referenced binding point is empty; a referenced name is not the name of an object; or the given name is otherwise not valid to this operation (GL_INVALID_VALUE)
  27 }
  28 #endif
  29
  30 Screen::Screen(bool visible)
  31 {
  32
  33         SDL_Init(SDL_INIT_VIDEO);
  34         uint32_t flags = SDL_WINDOW_OPENGL | SDL_WINDOW_RESIZABLE;
  35         if (!visible)
  36                 flags |= SDL_WINDOW_HIDDEN;
  37
  38         m_window = SDL_CreateWindow("IPDF", SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED,
  39                         800, 600, flags);
  40
  41         if (!m_window)
  42         {
  43                 Error("Couldn't create window!");
  44                 return;
  45         }
  46
  47         SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 3);
  48         SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 1);
  49         SDL_GL_SetAttribute(SDL_GL_CONTEXT_FLAGS, SDL_GL_CONTEXT_DEBUG_FLAG);
  50         SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_CORE);
  51
  52         m_gl_context = SDL_GL_CreateContext(m_window);
  53
  54         ogl_LoadFunctions();
  55
  56         // Why is this so horribly broken?
  57         if (ogl_IsVersionGEQ(3,0))
  58         {
  59                 Error("We require OpenGL 3.1, but you have version %d.%d!",ogl_GetMajorVersion(), ogl_GetMinorVersion());
  60         }
  61
  62         if (!SDL_GL_ExtensionSupported("GL_ARB_shading_language_420pack"))
  63         {
  64                 Error("Your system does not support the ARB_shading_language_420pack extension, which is required.");
  65         }
  66
  67         if (!SDL_GL_ExtensionSupported("GL_ARB_explicit_attrib_location"))
  68         {
  69                 Error("Your system does not support the ARB_explicit_attrib_location extension, which is required.");
  70         }
  71
  72         m_frame_begin_time = SDL_GetPerformanceCounter();
  73         m_last_frame_time = 0;
  74         m_last_frame_gpu_timer = 0;
  75
  76         glGenQueries(1, &m_frame_gpu_timer);
  77         glBeginQuery(GL_TIME_ELAPSED, m_frame_gpu_timer);
  78         #ifndef __MINGW32__
  79         glDebugMessageCallback(opengl_debug_callback, 0);
  80         #endif
  81
  82         GLuint default_vao;
  83         glGenVertexArrays(1, &default_vao);
  84         glBindVertexArray(default_vao);
  85
  86         m_texture_prog.InitialiseShaders(BASICTEX_VERT, BASICTEX_FRAG);
  87         m_texture_prog.Use();
  88
  89         // We always want to use the texture bound to texture unit 0.
  90         GLint texture_uniform_location = m_texture_prog.GetUniformLocation("tex");
  91         glUniform1i(texture_uniform_location, 0);
  92
  93         m_font_prog.InitialiseShaders(BASICTEX_VERT, "shaders/fonttex_frag.glsl");
  94         m_font_prog.Use();
  95
  96         // We always want to use the texture bound to texture unit 0.
  97         GLint font_texture_uniform_location = m_font_prog.GetUniformLocation("tex");
  98         glUniform1i(font_texture_uniform_location, 0);
  99         m_colour_uniform_location = m_font_prog.GetUniformLocation("colour");
 100
 101         m_viewport_ubo.SetUsage(GraphicsBuffer::BufferUsageDynamicDraw);
 102         m_viewport_ubo.SetType(GraphicsBuffer::BufferTypeUniform);
 103
 104         m_debug_font_atlas = 0;
 105         m_no_quit_requested = true;
 106         m_show_debug_font = true;
 107         m_view = NULL;
 108         ResizeViewport(800, 600);
 109
 110
 111
 112         Clear();
 113         Present();
 114
 115
 116 }
 117
 118 Screen::~Screen()
 119 {
 120         if (!Valid())
 121                 return;
 122         SDL_GL_DeleteContext(m_gl_context);
 123         SDL_DestroyWindow(m_window);
 124         SDL_Quit();
 125 }
 126
 127 void Screen::Clear(float r, float g, float b, float a)
 128 {
 129         if (!Valid())
 130                 return;
 131         glClearColor(r,g,b,a);
 132         glClear(GL_COLOR_BUFFER_BIT);
 133         DebugFontClear();
 134 }
 135
 136 void Screen::ResizeViewport(int width, int height)
 137 {
 138         glViewport(0, 0, width, height);
 139         m_viewport_width = width;
 140         m_viewport_height = height;
 141         GLfloat viewportfloats[] = {(float)width, (float)height};
 142         m_viewport_ubo.Upload(sizeof(float)*2, viewportfloats);
 143 }
 144
 145 bool Screen::PumpEvents()
 146 {
 147         if (!Valid())
 148                 return true;
 149
 150         SDL_Event evt;
 151
 152         while (SDL_PollEvent(&evt))
 153         {
 154                 switch (evt.type)
 155                 {
 156                 case SDL_QUIT:
 157                         m_no_quit_requested = false;
 158                         break;
 159                 case SDL_WINDOWEVENT:
 160                         switch (evt.window.event)
 161                         {
 162                         case SDL_WINDOWEVENT_RESIZED:
 163                         case SDL_WINDOWEVENT_SIZE_CHANGED:
 164                                 ResizeViewport(evt.window.data1, evt.window.data2);
 165                                 break;
 166                         }
 167                         break;
 168                 case SDL_MOUSEMOTION:
 169                         m_last_mouse_x = evt.motion.x;
 170                         m_last_mouse_y = evt.motion.y;
 171                         if (m_mouse_handler)
 172                         {
 173                                 m_mouse_handler(evt.motion.x, evt.motion.y,evt.motion.state, 0, this, m_view);
 174                         }
 175                         break;
 176                 case SDL_MOUSEBUTTONDOWN:
 177                 case SDL_MOUSEBUTTONUP:
 178                         m_last_mouse_x = evt.button.x;
 179                         m_last_mouse_y = evt.button.y;
 180                         if (m_mouse_handler)
 181                         {
 182                                 m_mouse_handler(evt.button.x, evt.button.y, evt.button.state?evt.button.button:0, 0, this, m_view);
 183                         }
 184                         break;
 185                 case SDL_MOUSEWHEEL:
 186                         if (m_mouse_handler)
 187                         {
 188                                 m_mouse_handler(m_last_mouse_x, m_last_mouse_y, 0, evt.wheel.y, this, m_view);
 189                         }
 190                         break;
 191                 case SDL_KEYDOWN:
 192                 {
 193                         Debug("Key %c down", (char)evt.key.keysym.sym);
 194                         if (isalnum((char)evt.key.keysym.sym))
 195                         {
 196                                 char filename[] = "0.bmp";
 197                                 filename[0] = (char)evt.key.keysym.sym;
 198                                 ScreenShot(filename);
 199                         }
 200                         break;
 201                 }
 202                 default:
 203                         break;
 204                 }
 205         }
 206         return m_no_quit_requested;
 207 }
 208
 209 void Screen::SetMouseCursor(Screen::MouseCursors cursor)
 210 {
 211         SDL_SystemCursor system_cursor_id = SDL_SYSTEM_CURSOR_ARROW;
 212         switch (cursor)
 213         {
 214         case CursorArrow: system_cursor_id = SDL_SYSTEM_CURSOR_ARROW; break;
 215         case CursorWait: system_cursor_id = SDL_SYSTEM_CURSOR_WAIT; break;
 216         case CursorWaitArrow: system_cursor_id = SDL_SYSTEM_CURSOR_WAITARROW; break;
 217         case CursorMove: system_cursor_id = SDL_SYSTEM_CURSOR_SIZEALL; break;
 218         case CursorHand: system_cursor_id = SDL_SYSTEM_CURSOR_HAND; break;
 219         default: break;
 220         }
 221         SDL_Cursor *system_cursor = SDL_CreateSystemCursor(system_cursor_id);
 222         SDL_SetCursor(system_cursor);
 223         //TODO: Check if we need to free the system cursors.
 224 }
 225
 226 void Screen::Present()
 227 {
 228         if (!Valid())
 229                 return;
 230         if (m_debug_font_atlas)
 231                 DebugFontFlush();
 232         m_last_frame_time = SDL_GetPerformanceCounter() - m_frame_begin_time;
 233         glEndQuery(GL_TIME_ELAPSED);
 234         SDL_GL_SwapWindow(m_window);
 235         m_frame_begin_time = SDL_GetPerformanceCounter();
 236         if (m_last_frame_gpu_timer)
 237                 glDeleteQueries(1, &m_last_frame_gpu_timer);
 238         m_last_frame_gpu_timer = m_frame_gpu_timer;
 239         glGenQueries(1, &m_frame_gpu_timer);
 240         glBeginQuery(GL_TIME_ELAPSED, m_frame_gpu_timer);
 241 }
 242
 243 double Screen::GetLastFrameTimeGPU() const
 244 {
 245         if (!Valid() || !m_last_frame_gpu_timer)
 246                 return 0;
 247         uint64_t frame_time_ns;
 248         glGetQueryObjectui64v(m_last_frame_gpu_timer, GL_QUERY_RESULT, &frame_time_ns);
 249         return frame_time_ns/1000000000.0;
 250 }
 251
 252 void Screen::RenderPixels(int x, int y, int w, int h, uint8_t *pixels) const
 253 {
 254         GLenum texture_format = GL_RGBA;
 255
 256         m_texture_prog.Use();
 257         GraphicsBuffer quad_vertex_buffer;
 258         quad_vertex_buffer.SetUsage(GraphicsBuffer::BufferUsageStaticDraw);
 259         quad_vertex_buffer.SetType(GraphicsBuffer::BufferTypeVertex);
 260         //rectangular texture == 2 triangles
 261         GLfloat quad[] = {
 262                 0, 0, (float)x, (float)y,
 263                 1, 0, (float)(x+w), (float)y,
 264                 0, 1, (float)x, (float)(y+h),
 265                 1, 1, (float)(x+w), (float)(y+h)
 266         };
 267         quad_vertex_buffer.Upload(sizeof(GLfloat) * 16, quad);
 268         quad_vertex_buffer.Bind();
 269         m_viewport_ubo.Bind();
 270
 271         glUniform4f(m_colour_uniform_location, 1.0f, 1.0f, 1.0f, 1.0f);
 272
 273         GLuint texID;
 274         glGenTextures(1, &texID);
 275         glBindTexture(GL_TEXTURE_2D, texID);
 276
 277         glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
 278         glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
 279         glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
 280         glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
 281
 282         glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, w, h, 0, texture_format, GL_UNSIGNED_BYTE, pixels);
 283
 284         glEnableVertexAttribArray(0);
 285         glEnableVertexAttribArray(1);
 286         glVertexAttribPointer(0, 2, GL_FLOAT, GL_FALSE, 4*sizeof(float), (void*)(2*sizeof(float)));
 287         glVertexAttribPointer(1, 2, GL_FLOAT, GL_FALSE, 4*sizeof(float), 0);
 288         glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
 289         glDisableVertexAttribArray(1);
 290         glDisableVertexAttribArray(0);
 291
 292 }
 293
 294 void Screen::ScreenShot(const char * filename) const
 295 {
 296         if (!Valid()) return;
 297         Debug("Attempting to save BMP to file %s", filename);
 298
 299         int w = ViewportWidth();
 300         int h = ViewportHeight();
 301         unsigned char * pixels = new unsigned char[w*h*4];
 302         if (pixels == NULL)
 303                 Fatal("Failed to allocate %d x %d x 4 = %d pixel array", w, h, w*h*4);
 304
 305         for (int y = 0; y < h; ++y)
 306         {
 307                 glReadPixels(0,h-y-1,w, 1, GL_RGBA, GL_UNSIGNED_BYTE, &pixels[y*w*4]);
 308         }
 309
 310 #if SDL_BYTEORDER == SDL_LIL_ENDIAN
 311         SDL_Surface * surf = SDL_CreateRGBSurfaceFrom(pixels, w, h, 8*4, w*4, 0x000000ff,0x0000ff00,0x00ff0000,0xff000000);
 312 #else
 313         SDL_Surface * surf = SDL_CreateRGBSurfaceFrom(pixels, w, h, 8*4, w*4, 0xff000000,0x00ff0000,0x0000ff00,0x000000ff);
 314 #endif
 315         if (surf == NULL)
 316                 Fatal("Failed to create SDL_Surface from pixel data - %s", SDL_GetError());
 317
 318         GLenum texture_format = (surf->format->Rmask == 0x000000FF) ? GL_RGBA : GL_BGRA;
 319         Debug("SDL_Surface %d BytesPerPixel, format %d (RGB = %d, BGR = %d, RGBA = %d, BGRA = %d)", surf->format->BytesPerPixel, texture_format, GL_RGB, GL_BGR, GL_RGBA, GL_BGRA);
 320
 321         if (SDL_SaveBMP(surf, filename) != 0)
 322                 Fatal("SDL_SaveBMP failed - %s", SDL_GetError());
 323
 324         SDL_FreeSurface(surf);
 325         delete [] pixels;
 326         Debug("Succeeded!");
 327 }
 328
 329 /**
 330  * Render a BMP
 331  * NOT PART OF THE DOCUMENT FORMAT
 332  */
 333 void Screen::RenderBMP(const char * filename) const
 334 {
 335         if (!Valid()) return;
 336         if (access(filename, R_OK) == -1)
 337         {
 338                 Error("No such file \"%s\" - Nothing to render - You might have done this deliberately?", filename);
 339                 return;
 340         }
 341         SDL_Surface * bmp = SDL_LoadBMP(filename);
 342         if (bmp == NULL)
 343                 Fatal("Failed to load BMP from %s - %s", filename, SDL_GetError());
 344
 345         int w = bmp->w;
 346         int h = bmp->h;
 347
 348         GLenum texture_format = GL_RGBA;
 349         switch (bmp->format->BytesPerPixel)
 350         {
 351                 case 4: //contains alpha
 352                         texture_format = (bmp->format->Rmask == 0x000000FF) ? GL_RGBA : GL_BGRA;
 353                         break;
 354                 case 3: //does not contain alpha
 355                         texture_format = (bmp->format->Rmask == 0x000000FF) ? GL_RGB : GL_BGR;
 356                         break;
 357                 default:
 358                         Fatal("Could not understand SDL_Surface format (%d colours)", bmp->format->BytesPerPixel);
 359                         break;
 360         }
 361
 362         //Debug("SDL_Surface %d BytesPerPixel, format %d (RGB = %d, BGR = %d, RGBA = %d, BGRA = %d)", bmp->format->BytesPerPixel, texture_format, GL_RGB, GL_BGR, GL_RGBA, GL_BGRA);
 363
 364         m_texture_prog.Use();
 365         GraphicsBuffer quad_vertex_buffer;
 366         quad_vertex_buffer.SetUsage(GraphicsBuffer::BufferUsageStaticDraw);
 367         quad_vertex_buffer.SetType(GraphicsBuffer::BufferTypeVertex);
 368         GLfloat quad[] = {
 369                 0, 0, 0, 0,
 370                 1, 0, (float)ViewportWidth(), 0,
 371                 1, 1, (float)ViewportWidth(), (float)ViewportHeight(),
 372                 0, 1, 0, (float)ViewportHeight()
 373         };
 374         quad_vertex_buffer.Upload(sizeof(GLfloat) * 16, quad);
 375         quad_vertex_buffer.Bind();
 376         m_viewport_ubo.Bind();
 377
 378         glUniform4f(m_colour_uniform_location, 1.0f, 1.0f, 1.0f, 1.0f);
 379
 380         GLuint texID;
 381         glGenTextures(1, &texID);
 382         glBindTexture(GL_TEXTURE_2D, texID);
 383
 384         glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
 385         glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
 386         glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
 387         glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
 388
 389         glTexImage2D(GL_TEXTURE_2D, 0, bmp->format->BytesPerPixel, w, h, 0, texture_format, GL_UNSIGNED_BYTE, bmp->pixels);
 390
 391         glEnableVertexAttribArray(0);
 392         glEnableVertexAttribArray(1);
 393         glVertexAttribPointer(0, 2, GL_FLOAT, GL_FALSE, 4*sizeof(float), (void*)(2*sizeof(float)));
 394         glVertexAttribPointer(1, 2, GL_FLOAT, GL_FALSE, 4*sizeof(float), 0);
 395         glDisableVertexAttribArray(1);
 396         glDisableVertexAttribArray(0);
 397         glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
 398
 399         SDL_FreeSurface(bmp);
 400 }
 401
 402 void Screen::DebugFontInit(const char *name, float font_size)
 403 {
 404         if (!Valid()) return;
 405
 406         unsigned char font_atlas_data[1024*1024];
 407         FILE *font_file = fopen(name, "rb");
 408         fseek(font_file, 0, SEEK_END);
 409         size_t font_file_size = ftell(font_file);
 410         fseek(font_file, 0, SEEK_SET);
 411         unsigned char *font_file_data = (unsigned char*)malloc(font_file_size);
 412         SDL_assert(fread(font_file_data, 1, font_file_size, font_file) == font_file_size);
 413         fclose(font_file);
 414         stbtt_BakeFontBitmap(font_file_data,0, font_size, font_atlas_data,1024,1024, 32,96, m_debug_font_rects);
 415         free(font_file_data);
 416         glGenTextures(1, &m_debug_font_atlas);
 417         glBindTexture(GL_TEXTURE_2D, m_debug_font_atlas);
 418         glTexImage2D(GL_TEXTURE_2D, 0, GL_RED, 1024,1024, 0, GL_RED, GL_UNSIGNED_BYTE, font_atlas_data);
 419         glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
 420         m_debug_font_size = font_size;
 421
 422         m_debug_font_vertices.SetUsage(GraphicsBuffer::BufferUsageStreamDraw);
 423         m_debug_font_vertices.SetType(GraphicsBuffer::BufferTypeVertex);
 424         m_debug_font_vertices.SetName("m_debug_font_vertices");
 425         m_debug_font_vertices.Upload(8192,NULL);
 426         m_debug_font_vertex_head = 0;
 427
 428         m_debug_font_indices.SetUsage(GraphicsBuffer::BufferUsageStreamDraw);
 429         m_debug_font_indices.SetType(GraphicsBuffer::BufferTypeIndex);
 430         m_debug_font_indices.SetName("m_debug_font_indices");
 431         m_debug_font_indices.Resize(500);
 432         m_debug_font_index_head = 0;
 433 }
 434
 435 void Screen::DebugFontClear()
 436 {
 437         if (!Valid()) return;
 438         m_debug_font_x = m_debug_font_y = 0;
 439         if (!m_debug_font_atlas) return;
 440         DebugFontPrint("\n");
 441 }
 442
 443 void Screen::DebugFontFlush()
 444 {
 445         if (!Valid()) return;
 446         glPushDebugGroup(GL_DEBUG_SOURCE_APPLICATION, 40, -1, "Screen::DebugFontFlush()");
 447
 448         glEnable(GL_BLEND);
 449         glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
 450         glBindTexture(GL_TEXTURE_2D, m_debug_font_atlas);
 451
 452         m_font_prog.Use();
 453         m_viewport_ubo.Bind();
 454         m_debug_font_vertices.Bind();
 455         m_debug_font_indices.Bind();
 456         glUniform4f(m_colour_uniform_location, 0,0,0,1);
 457         glEnableVertexAttribArray(0);
 458         glEnableVertexAttribArray(1);
 459         glEnable(GL_PRIMITIVE_RESTART);
 460         glPrimitiveRestartIndex(65535);
 461         glVertexAttribPointer(0, 2, GL_FLOAT, GL_FALSE, 4*sizeof(float), 0);
 462         glVertexAttribPointer(1, 2, GL_FLOAT, GL_FALSE, 4*sizeof(float), (void*)(2*sizeof(float)));
 463         glDrawElements(GL_TRIANGLE_STRIP, m_debug_font_index_head, GL_UNSIGNED_SHORT, 0);
 464         glDisable(GL_PRIMITIVE_RESTART);
 465         glDisableVertexAttribArray(1);
 466         glDisableVertexAttribArray(0);
 467
 468         glDisable(GL_BLEND);
 469
 470         m_debug_font_vertices.Invalidate();
 471         m_debug_font_indices.Invalidate();
 472         m_debug_font_vertex_head = 0;
 473         m_debug_font_index_head = 0;
 474
 475         glPopDebugGroup();
 476 }
 477
 478 struct fontvertex
 479 {
 480         float x, y, s, t;
 481 };
 482
 483 void Screen::DebugFontPrint(const char* str)
 484 {
 485         if (!Valid()) return;
 486         if (!m_debug_font_atlas || !m_show_debug_font) return;
 487
 488         glPushDebugGroup(GL_DEBUG_SOURCE_APPLICATION, 41, -1, "Screen::DebugFontPrint()");
 489
 490         BufferBuilder<fontvertex> vertexData(m_debug_font_vertices.MapRange(m_debug_font_vertex_head*sizeof(float), m_debug_font_vertices.GetSize() - m_debug_font_vertex_head*sizeof(float), false, true, true), m_debug_font_vertices.GetSize() - m_debug_font_vertex_head*sizeof(float));
 491         BufferBuilder<uint16_t> indexData(m_debug_font_indices.MapRange(m_debug_font_index_head*sizeof(uint16_t), m_debug_font_indices.GetSize() - m_debug_font_index_head*sizeof(uint16_t), false, true, true), m_debug_font_indices.GetSize() - m_debug_font_index_head*sizeof(uint16_t));
 492
 493         size_t baseVertex = m_debug_font_vertex_head/4;
 494         while (*str) {
 495                 if (!vertexData.Free(4) || !indexData.Free(5))
 496                 {
 497                         m_debug_font_indices.UnMap();
 498                         m_debug_font_vertices.UnMap();
 499                         DebugFontFlush();
 500                         DebugFontPrint(str);
 501                         glPopDebugGroup();
 502                         return;
 503                 }
 504                 if (*str >= 32 && (unsigned char)(*str) < 128) {
 505                         stbtt_aligned_quad q;
 506                         stbtt_GetBakedQuad(m_debug_font_rects, 1024,1024, *str-32, &m_debug_font_x,&m_debug_font_y,&q,1);
 507                         size_t index = vertexData.Add({q.x0, q.y0, q.s0, q.t0});
 508                         index += baseVertex;
 509                         indexData.Add(index);
 510                         index = vertexData.Add({q.x1, q.y0, q.s1, q.t0});
 511                         index += baseVertex;
 512                         indexData.Add(index);
 513                         index = vertexData.Add({q.x0, q.y1, q.s0, q.t1});
 514                         index += baseVertex;
 515                         indexData.Add(index);
 516                         index = vertexData.Add({q.x1, q.y1, q.s1, q.t1});
 517                         index += baseVertex;
 518                         indexData.Add(index);
 519                         indexData.Add(65535);
 520
 521                         m_debug_font_vertex_head += 16;
 522                         m_debug_font_index_head += 5;
 523
 524                 }
 525                 else if (*str == '\n')
 526                 {
 527                         m_debug_font_x = 0;
 528                         m_debug_font_y += m_debug_font_size;
 529                 }
 530                 ++str;
 531         }
 532         m_debug_font_indices.UnMap();
 533         m_debug_font_vertices.UnMap();
 534         glPopDebugGroup();
 535         //DebugFontFlush();
 536 }
 537
 538 void Screen::DebugFontPrintF(const char *fmt, ...)
 539 {
 540         char buffer[BUFSIZ];
 541         va_list va;
 542         va_start(va, fmt);
 543         vsnprintf(buffer, BUFSIZ, fmt,va);
 544         va_end(va);
 545         DebugFontPrint(buffer);
 546 }