diff options
Diffstat (limited to 'src/gl_draw.cxx')
| -rw-r--r-- | src/gl_draw.cxx | 246 |
1 files changed, 129 insertions, 117 deletions
diff --git a/src/gl_draw.cxx b/src/gl_draw.cxx index 9c7961d87..2a4722fe3 100644 --- a/src/gl_draw.cxx +++ b/src/gl_draw.cxx @@ -20,10 +20,8 @@ // See also Fl_Gl_Window and gl_start.cxx #include "config_lib.h" -#if defined(WIN32) || defined(__APPLE__) // PORTME: Fl_Graphics_Driver - platform opengl -#elif defined(FL_PORTING) +#if defined(FL_PORTING) # pragma message "FL_PORTING: implement OpenGL text rendering here" -#else #endif #include "flstring.h" @@ -32,31 +30,17 @@ #include <FL/Fl.H> #include <FL/gl.h> #include <FL/gl_draw.H> -#include <FL/x.H> #include <FL/fl_draw.H> -#include <FL/Fl_Device.H> -#include "Fl_Gl_Choice.H" -#if defined(__APPLE__) +#include <FL/Fl_Gl_Window_Driver.H> +#if defined(FL_CFG_GFX_QUARTZ) #include "drivers/Quartz/Fl_Font.H" -#elif defined(WIN32) +#elif defined(FL_CFG_GFX_GDI) #include "drivers/GDI/Fl_Font.H" -#elif defined(USE_X11) +#elif defined(FL_CFG_GFX_XLIB) #include "drivers/Xlib/Fl_Font.H" #endif #include <FL/fl_utf8.h> -#if defined(WIN32) || defined(__APPLE__) // PORTME: Fl_Graphics_Driver - platform opengl -#elif defined(FL_PORTING) -# pragma message "FL_PORTING: do you want to include Xutf8.h? It's written for X11." -#else -# include "Xutf8.h" -#endif - -#if defined(__APPLE__) && MAC_OS_X_VERSION_MAX_ALLOWED < MAC_OS_X_VERSION_10_4 -# include <OpenGL/glext.h> -# define kCGBitmapByteOrder32Host 0 -# define GL_TEXTURE_RECTANGLE_ARB GL_TEXTURE_RECTANGLE_EXT -#endif // __APPLE__ /** Returns the current font's height */ int gl_height() {return fl_height();} @@ -71,13 +55,6 @@ double gl_width(uchar c) {return fl_width(c);} static Fl_Font_Descriptor *gl_fontsize; -#ifndef __APPLE__ -# define USE_OksiD_style_GL_font_selection 1 // Most hosts except OSX -#endif - -#if USE_XFT -# undef USE_OksiD_style_GL_font_selection // turn this off for XFT also -#endif /** Sets the current OpenGL font to the same font as calling fl_font() @@ -85,73 +62,15 @@ static Fl_Font_Descriptor *gl_fontsize; void gl_font(int fontid, int size) { fl_font(fontid, size); Fl_Font_Descriptor *fl_fontsize = fl_graphics_driver->font_descriptor(); -#ifndef __APPLE__ - if (!fl_fontsize->listbase) { - -#ifdef USE_OksiD_style_GL_font_selection - fl_fontsize->listbase = glGenLists(0x10000); -#else // Fltk-1.1.8 style GL font selection - -#if defined (USE_X11) // X-windows options follow, either XFT or "plain" X -// FIXME: warning Ideally, for XFT, we really need a glXUseXftFont implementation here... -// FIXME: warning GL font selection is basically wrong here -/* OksiD had a fairly sophisticated scheme for storing multiple X fonts in a XUtf8FontStruct, - * then sorting through them at draw time (for normal X rendering) to find which one can - * render the current glyph... But for now, just use the first font in the list for GL... - */ - XFontStruct *font = fl_xfont.value(); - int base = font->min_char_or_byte2; - int count = font->max_char_or_byte2-base+1; - fl_fontsize->listbase = glGenLists(256); - glXUseXFont(font->fid, base, count, fl_fontsize->listbase+base); -# elif defined(WIN32) - // this is unused because USE_OksiD_style_GL_font_selection == 1 - int base = fl_fontsize->metr.tmFirstChar; - int count = fl_fontsize->metr.tmLastChar-base+1; - HFONT oldFid = (HFONT)SelectObject((HDC)fl_graphics_driver->gc(), fl_fontsize->fid); - fl_fontsize->listbase = glGenLists(256); - wglUseFontBitmaps((HDC)fl_graphics_driver->gc(), base, count, fl_fontsize->listbase+base); - SelectObject((HDC)fl_graphics_driver->gc(), oldFid); -# endif - -#endif // USE_OksiD_style_GL_font_selection - } - glListBase(fl_fontsize->listbase); -#endif // !__APPLE__ + Fl_Gl_Window_Driver::global()->gl_bitmap_font(fl_fontsize); gl_fontsize = fl_fontsize; } -#ifndef __APPLE__ -static void get_list(int r) { - gl_fontsize->glok[r] = 1; -#if defined(USE_X11) -# if USE_XFT -// FIXME -# else - unsigned int ii = r * 0x400; - for (int i = 0; i < 0x400; i++) { - XFontStruct *font = NULL; - unsigned short id; - fl_XGetUtf8FontAndGlyph(gl_fontsize->font, ii, &font, &id); - if (font) glXUseXFont(font->fid, id, 1, gl_fontsize->listbase+ii); - ii++; - } -# endif -#elif defined(WIN32) - unsigned int ii = r * 0x400; - HFONT oldFid = (HFONT)SelectObject((HDC)fl_graphics_driver->gc(), gl_fontsize->fid); - wglUseFontBitmapsW((HDC)fl_graphics_driver->gc(), ii, ii + 0x03ff, gl_fontsize->listbase+ii); - SelectObject((HDC)fl_graphics_driver->gc(), oldFid); -#else -# error unsupported platform -#endif -} // get_list -#endif +#if defined(FL_CFG_GFX_QUARTZ) || defined(FL_CFG_GFX_GDI) || defined(FL_CFG_GFX_XLIB) void gl_remove_displaylist_fonts() { # if HAVE_GL - // clear variables used mostly in fl_font fl_graphics_driver->font(0, 0); @@ -169,7 +88,7 @@ void gl_remove_displaylist_fonts() past->next = f->next; } - // It would be nice if this next line was in a desctructor somewhere + // It would be nice if this next line was in a destructor somewhere glDeleteLists(f->listbase, 256); Fl_Font_Descriptor* tmp = f; @@ -182,23 +101,21 @@ void gl_remove_displaylist_fonts() } } } - -#endif +#endif // HAVE_GL } - -#ifdef __APPLE__ -static void gl_draw_textures(const char* str, int n); #endif + /** Draws an array of n characters of the string in the current font at the current position. \see On the Mac OS X platform, see gl_texture_pile_height(int) */ void gl_draw(const char* str, int n) { -#ifdef __APPLE__ - gl_draw_textures(str, n); -#else + Fl_Gl_Window_Driver::global()->draw_string(str, n); +} + +void Fl_Gl_Window_Driver::draw_string(const char* str, int n) { static unsigned short *buf = NULL; static int l = 0; int wn = fl_utf8toUtf16(str, n, (unsigned short*)buf, l); @@ -208,15 +125,15 @@ void gl_draw(const char* str, int n) { wn = fl_utf8toUtf16(str, n, (unsigned short*)buf, l); } n = wn; - + int i; for (i = 0; i < n; i++) { unsigned int r; r = (str[i] & 0xFC00) >> 10; - if (!gl_fontsize->glok[r]) get_list(r); + //if (!gl_fontsize->glok[r]) get_list(r); + this->get_list(gl_fontsize, r); } glCallLists(n, GL_UNSIGNED_SHORT, buf); -#endif } /** @@ -301,10 +218,6 @@ void gl_rect(int x, int y, int w, int h) { glEnd(); } -#if HAVE_GL_OVERLAY -extern uchar fl_overlay; -extern int fl_overlay_depth; -#endif /** Sets the curent OpenGL color to an FLTK color. @@ -313,8 +226,102 @@ extern int fl_overlay_depth; right if the window uses the default colormap! */ void gl_color(Fl_Color i) { + if (Fl_Gl_Window_Driver::global()->overlay_color(i)) return; + uchar red, green, blue; + Fl::get_color(i, red, green, blue); + glColor3ub(red, green, blue); +} + + +#if defined(FL_CFG_GFX_XLIB) +#include <FL/x.H> +#include <GL/glx.h> + +# define USE_OksiD_style_GL_font_selection 1 // Most X11 hosts except XFT +#if USE_XFT +# undef USE_OksiD_style_GL_font_selection // turn this off for XFT also +#endif + +void Fl_X11_Gl_Window_Driver::gl_bitmap_font(Fl_Font_Descriptor *fl_fontsize) { + if (!fl_fontsize->listbase) { +#ifdef USE_OksiD_style_GL_font_selection + fl_fontsize->listbase = glGenLists(0x10000); +#else // Fltk-1.1.8 style GL font selection + // FIXME: warning Ideally, for XFT, we really need a glXUseXftFont implementation here... + // FIXME: warning GL font selection is basically wrong here + /* OksiD had a fairly sophisticated scheme for storing multiple X fonts in a XUtf8FontStruct, + * then sorting through them at draw time (for normal X rendering) to find which one can + * render the current glyph... But for now, just use the first font in the list for GL... + */ + XFontStruct *font = fl_xfont.value(); + int base = font->min_char_or_byte2; + int count = font->max_char_or_byte2-base+1; + fl_fontsize->listbase = glGenLists(256); + glXUseXFont(font->fid, base, count, fl_fontsize->listbase+base); +#endif // USE_OksiD_style_GL_font_selection + } + glListBase(fl_fontsize->listbase); +} + + +void Fl_X11_Gl_Window_Driver::get_list(Fl_Font_Descriptor *gl_fd, int r) { + if (gl_fd->glok[r]) return; + gl_fd->glok[r] = 1; +# if USE_XFT + // FIXME +# else + unsigned int ii = r * 0x400; + for (int i = 0; i < 0x400; i++) { + XFontStruct *font = NULL; + unsigned short id; + fl_XGetUtf8FontAndGlyph(gl_fd->font, ii, &font, &id); + if (font) glXUseXFont(font->fid, id, 1, gl_fd->listbase+ii); + ii++; + } +# endif +} + +#if HAVE_GL_OVERLAY +extern uchar fl_overlay; +int Fl_X11_Gl_Window_Driver::overlay_color(Fl_Color i) { + if (fl_overlay) {glIndexi(int(fl_xpixel(i))); return 1;} + return 0; +} +#endif // HAVE_GL_OVERLAY +#endif // FL_CFG_GFX_XLIB + + +#if defined(FL_CFG_GFX_GDI) + +void Fl_WinAPI_Gl_Window_Driver::gl_bitmap_font(Fl_Font_Descriptor *fl_fontsize) { + if (!fl_fontsize->listbase) { + fl_fontsize->listbase = glGenLists(0x10000); + /* old, unused WIN32 code + int base = fl_fontsize->metr.tmFirstChar; + int count = fl_fontsize->metr.tmLastChar-base+1; + HFONT oldFid = (HFONT)SelectObject((HDC)fl_graphics_driver->gc(), fl_fontsize->fid); + fl_fontsize->listbase = glGenLists(256); + wglUseFontBitmaps((HDC)fl_graphics_driver->gc(), base, count, fl_fontsize->listbase+base); + SelectObject((HDC)fl_graphics_driver->gc(), oldFid); + */ + } + glListBase(fl_fontsize->listbase); +} + + +void Fl_WinAPI_Gl_Window_Driver::get_list(Fl_Font_Descriptor *gl_fd, int r) { + if (gl_fd->glok[r]) return; + gl_fd->glok[r] = 1; + unsigned int ii = r * 0x400; + HFONT oldFid = (HFONT)SelectObject((HDC)fl_graphics_driver->gc(), gl_fd->fid); + wglUseFontBitmapsW((HDC)fl_graphics_driver->gc(), ii, ii + 0x03ff, gl_fd->listbase+ii); + SelectObject((HDC)fl_graphics_driver->gc(), oldFid); +} + #if HAVE_GL_OVERLAY -#if defined(WIN32) +extern uchar fl_overlay; +extern int fl_overlay_depth; +int Fl_WinAPI_Gl_Window_Driver::overlay_color(Fl_Color i) { if (fl_overlay && fl_overlay_depth) { if (fl_overlay_depth < 8) { // only black & white produce the expected colors. This could @@ -326,16 +333,13 @@ void gl_color(Fl_Color i) { } else { glIndexi(i ? i : FL_GRAY_RAMP); } - return; + return 1; } -#else - if (fl_overlay) {glIndexi(int(fl_xpixel(i))); return;} -#endif -#endif - uchar red, green, blue; - Fl::get_color(i, red, green, blue); - glColor3ub(red, green, blue); + return 0; } +#endif // HAVE_GL_OVERLAY +#endif // FL_CFG_GFX_GDI + void gl_draw_image(const uchar* b, int x, int y, int w, int h, int d, int ld) { if (!ld) ld = w*d; @@ -344,7 +348,15 @@ void gl_draw_image(const uchar* b, int x, int y, int w, int h, int d, int ld) { glDrawPixels(w,h,d<4?GL_RGB:GL_RGBA,GL_UNSIGNED_BYTE,(const ulong*)b); } -#if defined(__APPLE__) || defined(FL_DOXYGEN) + +#if defined(FL_CFG_GFX_QUARTZ) || defined(FL_DOXYGEN) +#include <FL/x.H> +#if MAC_OS_X_VERSION_MAX_ALLOWED < MAC_OS_X_VERSION_10_4 +# include <OpenGL/glext.h> +# define kCGBitmapByteOrder32Host 0 +# define GL_TEXTURE_RECTANGLE_ARB GL_TEXTURE_RECTANGLE_EXT +#endif // MAC_OS_X_VERSION_MAX_ALLOWED + /* Text drawing to an OpenGL scene under Mac OS X is implemented using textures, as recommended by Apple. This allows to use any font at any size, and any Unicode character. Some old Apple hardware doesn't implement the required GL_EXT_texture_rectangle extension. @@ -361,7 +373,7 @@ static int has_texture_rectangle = 0; // true means GL_EXT_texture_rectangle is // manages a fifo pile of pre-computed string textures class gl_texture_fifo { - friend void gl_draw_textures(const char *, int); + friend class Fl_Cocoa_Gl_Window_Driver; private: typedef struct { // information for a pre-computed texture GLuint texName; // its name @@ -540,7 +552,7 @@ int gl_texture_fifo::already_known(const char *str, int n) static gl_texture_fifo *gl_fifo = NULL; // points to the texture pile class instance // draws a utf8 string using pre-computed texture if available -static void gl_draw_textures(const char* str, int n) +void Fl_Cocoa_Gl_Window_Driver::draw_string(const char* str, int n) { gl_scale = Fl_Window::current()->as_gl_window()->pixels_per_unit(); //fprintf(stderr,"gl_scale=%d\n",gl_scale); @@ -590,7 +602,7 @@ void gl_texture_reset() { if (gl_fifo) gl_texture_pile_height(gl_texture_pile_height()); } -#endif // __APPLE__ +#endif // FL_CFG_GFX_QUARTZ #endif // HAVE_GL |