diff --git a/tests/Jamfile b/tests/Jamfile new file mode 100644 index 000000000..06625a93e --- /dev/null +++ b/tests/Jamfile @@ -0,0 +1,31 @@ +SubDir FT2_TOP tests ; + +test_programs = gview ; + +SubDirHdrs [ FT2_SubDir .. .. nirvana include ] ; + +NV_TOP = [ FT2_SubDir .. .. .. nirvana ] ; + +NIRVANA_LINKLIBS = $(NV_TOP)\\objs\\nirvana$(SUFLIB) ; + +{ + local t ; + + for t in $(test_programs) + { + Main $(t) : $(t).c ; + + LinkLibraries $(t) : $(FT2_LIB) ; + + if $(TOOLSET) = MINGW + { + LINKKLIBS on $(t)$(SUFEXE) = "-luser32 -lgdi32" ; + } + else + { + LINKLIBS on $(t)$(SUFEXE) = user32.lib gdi32.lib ; + } + + NEEDLIBS on $(t)$(SUFEXE) += $(NIRVANA_LINKLIBS) ; + } +} diff --git a/tests/gview.c b/tests/gview.c new file mode 100644 index 000000000..35d236911 --- /dev/null +++ b/tests/gview.c @@ -0,0 +1,945 @@ +#include +#include NV_VIEWPORT_H +#include + +#include +#include FT_FREETYPE_H + +/* include FreeType internals to debug hints */ +#include <../src/pshinter/pshrec.h> +#include <../src/pshinter/pshalgo1.h> +#include <../src/pshinter/pshalgo2.h> + + /************************************************************************/ + /************************************************************************/ + /***** *****/ + /***** ROOT DEFINITIONS *****/ + /***** *****/ + /************************************************************************/ + /************************************************************************/ + + +#include /* for clock() */ + +/* SunOS 4.1.* does not define CLOCKS_PER_SEC, so include */ +/* to get the HZ macro which is the equivalent. */ +#if defined(__sun__) && !defined(SVR4) && !defined(__SVR4) +#include +#define CLOCKS_PER_SEC HZ +#endif + +static int first_glyph = 0; + +static NV_Renderer renderer; +static NV_Painter painter; +static NV_Pixmap target; +static NV_Error error; +static NV_Memory memory; +static NVV_Display display; +static NVV_Surface surface; + +static FT_Library freetype; +static FT_Face face; + + +static NV_Pos glyph_scale; +static NV_Pos glyph_org_x; +static NV_Pos glyph_org_y; +static NV_Transform glyph_transform; /* font units -> device pixels */ +static NV_Transform size_transform; /* subpixels -> device pixels */ + +static NV_Scale grid_scale = 1.0; + +static int glyph_index; +static int pixel_size = 12; + + /************************************************************************/ + /************************************************************************/ + /***** *****/ + /***** OPTIONS, COLORS and OTHERS *****/ + /***** *****/ + /************************************************************************/ + /************************************************************************/ + +static int option_show_axis = 1; +static int option_show_dots = 1; +static int option_show_stroke = 0; +static int option_show_glyph = 1; +static int option_show_grid = 1; +static int option_show_em = 0; +static int option_show_smooth = 1; +static int option_show_blues = 0; + +static int option_show_ps_hints = 1; +static int option_show_horz_hints = 1; +static int option_show_vert_hints = 1; + + +static int option_hinting = 1; + +static char temp_message[1024]; + +#define AXIS_COLOR 0xFFFF0000 +#define GRID_COLOR 0xFFD0D0D0 +#define ON_COLOR 0xFFFF2000 +#define OFF_COLOR 0xFFFF0080 +#define STRONG_COLOR 0xFF404040 +#define INTERP_COLOR 0xFF206040 +#define SMOOTH_COLOR 0xF000B040 +#define BACKGROUND_COLOR 0xFFFFFFFF +#define TEXT_COLOR 0xFF000000 +#define EM_COLOR 0x80008000 +#define BLUES_TOP_COLOR 0x4000008F +#define BLUES_BOT_COLOR 0x40008F00 + +#define GHOST_HINT_COLOR 0xE00000FF +#define STEM_HINT_COLOR 0xE02020FF +#define STEM_JOIN_COLOR 0xE020FF20 + +/* print message and abort program */ +static void +Panic( const char* message ) +{ + fprintf( stderr, "PANIC: %s\n", message ); + exit(1); +} + + + /************************************************************************/ + /************************************************************************/ + /***** *****/ + /***** COMMON GRID DRAWING ROUTINES *****/ + /***** *****/ + /************************************************************************/ + /************************************************************************/ + +static void +reset_scale( NV_Scale scale ) +{ + /* compute font units -> grid pixels scale factor */ + glyph_scale = target->width*0.75 / face->units_per_EM * scale; + + /* setup font units -> grid pixels transform */ + nv_transform_set_scale( &glyph_transform, glyph_scale, -glyph_scale ); + glyph_org_x = glyph_transform.delta.x = target->width*0.125; + glyph_org_y = glyph_transform.delta.y = target->height*0.875; + + /* setup subpixels -> grid pixels transform */ + nv_transform_set_scale( &size_transform, + glyph_scale/nv_fromfixed(face->size->metrics.x_scale), + - glyph_scale/nv_fromfixed(face->size->metrics.y_scale) ); + + size_transform.delta = glyph_transform.delta; +} + + +static void +reset_size( int pixel_size, NV_Scale scale ) +{ + FT_Set_Pixel_Sizes( face, pixel_size, pixel_size ); + reset_scale( scale ); +} + + +static void +clear_background( void ) +{ + nv_pixmap_fill_rect( target, 0, 0, target->width, target->height, + BACKGROUND_COLOR ); +} + + +static void +draw_grid( void ) +{ + int x = (int)glyph_org_x; + int y = (int)glyph_org_y; + + /* draw grid */ + if ( option_show_grid ) + { + NV_Scale min, max, x, step; + + /* draw vertical grid bars */ + step = 64. * size_transform.matrix.xx; + if (step > 1.) + { + min = max = glyph_org_x; + while ( min - step >= 0 ) min -= step; + while ( max + step < target->width ) max += step; + + for ( x = min; x <= max; x += step ) + nv_pixmap_fill_rect( target, (NV_Int)(x+.5), 0, + 1, target->height, GRID_COLOR ); + } + + /* draw horizontal grid bars */ + step = -64. * size_transform.matrix.yy; + if (step > 1.) + { + min = max = glyph_org_y; + while ( min - step >= 0 ) min -= step; + while ( max + step < target->height ) max += step; + + for ( x = min; x <= max; x += step ) + nv_pixmap_fill_rect( target, 0, (NV_Int)(x+.5), + target->width, 1, GRID_COLOR ); + } + } + + /* draw axis */ + if ( option_show_axis ) + { + nv_pixmap_fill_rect( target, x, 0, 1, target->height, AXIS_COLOR ); + nv_pixmap_fill_rect( target, 0, y, target->width, 1, AXIS_COLOR ); + } + + if ( option_show_em ) + { + NV_Path path; + NV_Path stroke; + NV_UInt units = (NV_UInt)face->units_per_EM; + + nv_path_new_rectangle( renderer, 0, 0, units, units, 0, 0, &path ); + nv_path_transform( path, &glyph_transform ); + + nv_path_stroke( path, 1.5, nv_path_linecap_butt, nv_path_linejoin_miter, + 4.0, &stroke ); + + nv_painter_set_color( painter, EM_COLOR, 256 ); + nv_painter_fill_path( painter, NULL, 0, stroke ); + + nv_path_destroy( stroke ); + nv_path_destroy( path ); + } + +} + + + /************************************************************************/ + /************************************************************************/ + /***** *****/ + /***** POSTSCRIPT GLOBALS ROUTINES *****/ + /***** *****/ + /************************************************************************/ + /************************************************************************/ + +#include <../src/pshinter/pshglob.h> + +static void +draw_ps_blue_zones( void ) +{ + if ( option_show_blues && ps_debug_globals ) + { + PSH_Blues blues = &ps_debug_globals->blues; + PSH_Blue_Table table; + NV_Vector v; + FT_Int y1, y2; + FT_UInt count; + PSH_Blue_Zone zone; + + /* draw top zones */ + table = &blues->normal_top; + count = table->count; + zone = table->zones; + + for ( ; count > 0; count--, zone++ ) + { + v.x = 0; + if ( !ps_debug_no_horz_hints ) + { + v.y = zone->cur_ref + zone->cur_delta; + nv_vector_transform( &v, &size_transform ); + } + else + { + v.y = zone->org_ref + zone->org_delta; + nv_vector_transform( &v, &glyph_transform ); + } + y1 = (int)(v.y + 0.5); + + v.x = 0; + if ( !ps_debug_no_horz_hints ) + { + v.y = zone->cur_ref; + nv_vector_transform( &v, &size_transform ); + } + else + { + v.y = zone->org_ref; + nv_vector_transform( &v, &glyph_transform ); + } + y2 = (int)(v.y + 0.5); + + nv_pixmap_fill_rect( target, 0, y1, + target->width, y2-y1+1, + BLUES_TOP_COLOR ); + +#if 0 + printf( "top [%.3f %.3f]\n", zone->cur_bottom/64.0, zone->cur_top/64.0 ); +#endif + } + + + /* draw bottom zones */ + table = &blues->normal_bottom; + count = table->count; + zone = table->zones; + + for ( ; count > 0; count--, zone++ ) + { + v.x = 0; + v.y = zone->cur_ref; + nv_vector_transform( &v, &size_transform ); + y1 = (int)(v.y + 0.5); + + v.x = 0; + v.y = zone->cur_ref + zone->cur_delta; + nv_vector_transform( &v, &size_transform ); + y2 = (int)(v.y + 0.5); + + nv_pixmap_fill_rect( target, 0, y1, + target->width, y2-y1+1, + BLUES_BOT_COLOR ); + +#if 0 + printf( "bot [%.3f %.3f]\n", zone->cur_bottom/64.0, zone->cur_top/64.0 ); +#endif + } + } +} + + /************************************************************************/ + /************************************************************************/ + /***** *****/ + /***** POSTSCRIPT HINTER ALGORITHM 1 ROUTINES *****/ + /***** *****/ + /************************************************************************/ + /************************************************************************/ + +#include <../src/pshinter/pshalgo1.h> + +static int pshint_cpos = 0; +static int pshint_vertical = -1; + +static void +draw_ps1_hint( PSH1_Hint hint, FT_Bool vertical ) +{ + int x1, x2; + NV_Vector v; + + + if ( pshint_vertical != vertical ) + { + if (vertical) + pshint_cpos = 40; + else + pshint_cpos = 10; + + pshint_vertical = vertical; + } + + if (vertical) + { + if ( !option_show_vert_hints ) + return; + + v.x = hint->cur_pos; + v.y = 0; + nv_vector_transform( &v, &size_transform ); + x1 = (int)(v.x + 0.5); + + v.x = hint->cur_pos + hint->cur_len; + v.y = 0; + nv_vector_transform( &v, &size_transform ); + x2 = (int)(v.x + 0.5); + + nv_pixmap_fill_rect( target, x1, 0, 1, target->height, + psh1_hint_is_ghost(hint) + ? GHOST_HINT_COLOR : STEM_HINT_COLOR ); + + if ( psh1_hint_is_ghost(hint) ) + { + x1 --; + x2 = x1 + 2; + } + else + nv_pixmap_fill_rect( target, x2, 0, 1, target->height, + psh1_hint_is_ghost(hint) + ? GHOST_HINT_COLOR : STEM_HINT_COLOR ); + + nv_pixmap_fill_rect( target, x1, pshint_cpos, x2+1-x1, 1, + STEM_JOIN_COLOR ); + } + else + { + if (!option_show_horz_hints) + return; + + v.y = hint->cur_pos; + v.x = 0; + nv_vector_transform( &v, &size_transform ); + x1 = (int)(v.y + 0.5); + + v.y = hint->cur_pos + hint->cur_len; + v.x = 0; + nv_vector_transform( &v, &size_transform ); + x2 = (int)(v.y + 0.5); + + nv_pixmap_fill_rect( target, 0, x1, target->width, 1, + psh1_hint_is_ghost(hint) + ? GHOST_HINT_COLOR : STEM_HINT_COLOR ); + + if ( psh1_hint_is_ghost(hint) ) + { + x1 --; + x2 = x1 + 2; + } + else + nv_pixmap_fill_rect( target, 0, x2, target->width, 1, + psh1_hint_is_ghost(hint) + ? GHOST_HINT_COLOR : STEM_HINT_COLOR ); + + nv_pixmap_fill_rect( target, pshint_cpos, x2, 1, x1+1-x2, + STEM_JOIN_COLOR ); + } + +#if 0 + printf( "[%7.3f %7.3f] %c\n", hint->cur_pos/64.0, (hint->cur_pos+hint->cur_len)/64.0, vertical ? 'v' : 'h' ); +#endif + + pshint_cpos += 10; +} + + + + /************************************************************************/ + /************************************************************************/ + /***** *****/ + /***** POSTSCRIPT HINTER ALGORITHM 2 ROUTINES *****/ + /***** *****/ + /************************************************************************/ + /************************************************************************/ + +#include <../src/pshinter/pshalgo2.h> + +static void +draw_ps2_hint( PSH2_Hint hint, FT_Bool vertical ) +{ + int x1, x2; + NV_Vector v; + + if ( pshint_vertical != vertical ) + { + if (vertical) + pshint_cpos = 40; + else + pshint_cpos = 10; + + pshint_vertical = vertical; + } + + if (vertical) + { + if ( !option_show_vert_hints ) + return; + + v.x = hint->cur_pos; + v.y = 0; + nv_vector_transform( &v, &size_transform ); + x1 = (int)(v.x + 0.5); + + v.x = hint->cur_pos + hint->cur_len; + v.y = 0; + nv_vector_transform( &v, &size_transform ); + x2 = (int)(v.x + 0.5); + + nv_pixmap_fill_rect( target, x1, 0, 1, target->height, + psh2_hint_is_ghost(hint) + ? GHOST_HINT_COLOR : STEM_HINT_COLOR ); + + if ( psh2_hint_is_ghost(hint) ) + { + x1 --; + x2 = x1 + 2; + } + else + nv_pixmap_fill_rect( target, x2, 0, 1, target->height, + psh2_hint_is_ghost(hint) + ? GHOST_HINT_COLOR : STEM_HINT_COLOR ); + + nv_pixmap_fill_rect( target, x1, pshint_cpos, x2+1-x1, 1, + STEM_JOIN_COLOR ); + } + else + { + if (!option_show_horz_hints) + return; + + v.y = hint->cur_pos; + v.x = 0; + nv_vector_transform( &v, &size_transform ); + x1 = (int)(v.y + 0.5); + + v.y = hint->cur_pos + hint->cur_len; + v.x = 0; + nv_vector_transform( &v, &size_transform ); + x2 = (int)(v.y + 0.5); + + nv_pixmap_fill_rect( target, 0, x1, target->width, 1, + psh2_hint_is_ghost(hint) + ? GHOST_HINT_COLOR : STEM_HINT_COLOR ); + + if ( psh2_hint_is_ghost(hint) ) + { + x1 --; + x2 = x1 + 2; + } + else + nv_pixmap_fill_rect( target, 0, x2, target->width, 1, + psh2_hint_is_ghost(hint) + ? GHOST_HINT_COLOR : STEM_HINT_COLOR ); + + nv_pixmap_fill_rect( target, pshint_cpos, x2, 1, x1+1-x2, + STEM_JOIN_COLOR ); + } + +#if 0 + printf( "[%7.3f %7.3f] %c\n", hint->cur_pos/64.0, (hint->cur_pos+hint->cur_len)/64.0, vertical ? 'v' : 'h' ); +#endif + + pshint_cpos += 10; +} + + +static void +ps2_draw_control_points( void ) +{ + if ( ps2_debug_glyph ) + { + PSH2_Glyph glyph = ps2_debug_glyph; + PSH2_Point point = glyph->points; + FT_UInt count = glyph->num_points; + NV_Transform transform, *trans = &transform; + NV_Path vert_rect; + NV_Path horz_rect; + NV_Path dot, circle; + + nv_path_new_rectangle( renderer, -1, -6, 2, 12, 0, 0, &vert_rect ); + nv_path_new_rectangle( renderer, -6, -1, 12, 2, 0, 0, &horz_rect ); + nv_path_new_circle( renderer, 0, 0, 3., &dot ); + nv_path_stroke( dot, 0.6, nv_path_linecap_butt, nv_path_linejoin_miter, 1., &circle ); + + for ( ; count > 0; count--, point++ ) + { + NV_Vector vec; + + vec.x = point->cur_x; + vec.y = point->cur_y; + nv_vector_transform( &vec, &size_transform ); + + nv_transform_set_translate( trans, vec.x, vec.y ); + + if ( option_show_smooth && !psh2_point_is_smooth(point) ) + { + nv_painter_set_color( painter, SMOOTH_COLOR, 256 ); + nv_painter_fill_path( painter, trans, 0, circle ); + } + + if (option_show_horz_hints) + { + if ( point->flags_y & PSH2_POINT_STRONG ) + { + nv_painter_set_color( painter, STRONG_COLOR, 256 ); + nv_painter_fill_path( painter, trans, 0, horz_rect ); + } + } + + if (option_show_vert_hints) + { + if ( point->flags_x & PSH2_POINT_STRONG ) + { + nv_painter_set_color( painter, STRONG_COLOR, 256 ); + nv_painter_fill_path( painter, trans, 0, vert_rect ); + } + } + } + + nv_path_destroy( circle ); + nv_path_destroy( dot ); + nv_path_destroy( horz_rect ); + nv_path_destroy( vert_rect ); + } +} + + /************************************************************************/ + /************************************************************************/ + /***** *****/ + /***** MAIN LOOP(S) *****/ + /***** *****/ + /************************************************************************/ + /************************************************************************/ + +static void +draw_glyph( int glyph_index ) +{ + NV_Path path; + + pshint_vertical = -1; + + ps1_debug_hint_func = option_show_ps_hints ? draw_ps1_hint : 0; + ps2_debug_hint_func = option_show_ps_hints ? draw_ps2_hint : 0; + + error = FT_Load_Glyph( face, glyph_index, option_hinting + ? FT_LOAD_NO_BITMAP + : FT_LOAD_NO_BITMAP | FT_LOAD_NO_HINTING ); + if (error) Panic( "could not load glyph" ); + + if ( face->glyph->format != ft_glyph_format_outline ) + Panic( "could not load glyph outline" ); + + error = nv_path_new_from_outline( renderer, + (NV_Outline*)&face->glyph->outline, + &size_transform, + &path ); + if (error) Panic( "could not create glyph path" ); + + /* tracé du glyphe plein */ + if ( option_show_glyph ) + { + nv_painter_set_color ( painter, 0xFF404080, 128 ); + nv_painter_fill_path ( painter, 0, 0, path ); + } + + if ( option_show_stroke ) + { + NV_Path stroke; + + error = nv_path_stroke( path, 0.6, + nv_path_linecap_butt, + nv_path_linejoin_miter, + 1.0, &stroke ); + if (error) Panic( "could not stroke glyph path" ); + + nv_painter_set_color ( painter, 0xFF000040, 256 ); + nv_painter_fill_path ( painter, 0, 0, stroke ); + + nv_path_destroy( stroke ); + } + + /* tracé des points de controle */ + if ( option_show_dots ) + { + NV_Path plot; + NV_Outline out; + NV_Scale r = 2; + NV_Int n, first, last; + + nv_path_new_circle( renderer, 0, 0, 2., &plot ); + + nv_path_get_outline( path, NULL, memory, &out ); + + first = 0; + for ( n = 0; n < out.n_contours; n++ ) + { + int m; + NV_Transform trans; + NV_Color color; + NV_SubVector* vec; + + last = out.contours[n]; + + for ( m = first; m <= last; m++ ) + { + color = (out.tags[m] & FT_Curve_Tag_On) + ? ON_COLOR + : OFF_COLOR; + + vec = out.points + m; + + nv_transform_set_translate( &trans, vec->x/64.0, vec->y/64.0 ); + + nv_painter_set_color( painter, color, 256 ); + nv_painter_fill_path( painter, &trans, 0, plot ); + + } + + first = last + 1; + } + + nv_path_destroy( plot ); + } + + nv_path_destroy( path ); + + /* autre infos */ + { + char temp[1024]; + char temp2[64]; + + sprintf( temp, "font name : %s (%s)", face->family_name, face->style_name ); + nv_pixmap_cell_text( target, 0, 0, temp, TEXT_COLOR ); + + FT_Get_Glyph_Name( face, glyph_index, temp2, 63 ); + temp2[63] = 0; + + sprintf( temp, "glyph %4d: %s", glyph_index, temp2 ); + nv_pixmap_cell_text( target, 0, 8, temp, TEXT_COLOR ); + + if ( temp_message[0] ) + { + nv_pixmap_cell_text( target, 0, 16, temp_message, TEXT_COLOR ); + temp_message[0] = 0; + } + } +} + + + +#define TOGGLE_OPTION(var,prefix) \ + { \ + var = !var; \ + sprintf( temp_message, prefix " is now %s", \ + var ? "on" : "off" ); \ + break; \ + } + + +#define TOGGLE_OPTION_NEG(var,prefix) \ + { \ + var = !var; \ + sprintf( temp_message, prefix " is now %s", \ + !var ? "on" : "off" ); \ + break; \ + } + + +static void +handle_event( NVV_EventRec* ev ) +{ + switch (ev->key) + { + case NVV_Key_Left: + { + if ( glyph_index > 0 ) + glyph_index--; + break; + } + + case NVV_Key_Right: + { + if ( glyph_index+1 < face->num_glyphs ) + glyph_index++; + break; + } + + case NVV_KEY('x'): + TOGGLE_OPTION( option_show_axis, "grid axis display" ) + + case NVV_KEY('s'): + TOGGLE_OPTION( option_show_stroke, "glyph stroke display" ) + + case NVV_KEY('g'): + TOGGLE_OPTION( option_show_glyph, "glyph fill display" ) + + case NVV_KEY('d'): + TOGGLE_OPTION( option_show_dots, "control points display" ) + + case NVV_KEY('e'): + TOGGLE_OPTION( option_show_em, "EM square display" ) + + case NVV_KEY('+'): + { + grid_scale *= 1.2; + reset_scale( grid_scale ); + break; + } + + case NVV_KEY('-'): + { + if (grid_scale > 0.3) + { + grid_scale /= 1.2; + reset_scale( grid_scale ); + } + break; + } + + case NVV_Key_Up: + { + pixel_size++; + reset_size( pixel_size, grid_scale ); + sprintf( temp_message, "pixel size = %d", pixel_size ); + break; + } + + case NVV_Key_Down: + { + if (pixel_size > 1) + { + pixel_size--; + reset_size( pixel_size, grid_scale ); + sprintf( temp_message, "pixel size = %d", pixel_size ); + } + break; + } + + case NVV_KEY('z'): + TOGGLE_OPTION_NEG( ps_debug_no_vert_hints, "vertical hints processing" ) + + case NVV_KEY('a'): + TOGGLE_OPTION_NEG( ps_debug_no_horz_hints, "horizontal hints processing" ) + + case NVV_KEY('Z'): + TOGGLE_OPTION( option_show_vert_hints, "vertical hints display" ) + + case NVV_KEY('A'): + TOGGLE_OPTION( option_show_horz_hints, "horizontal hints display" ) + + case NVV_KEY('S'): + TOGGLE_OPTION( option_show_smooth, "smooth points display" ); + + case NVV_KEY('b'): + TOGGLE_OPTION( option_show_blues, "blue zones display" ); + + case NVV_KEY('h'): + TOGGLE_OPTION( option_hinting, "hinting" ) + + default: + ; + } +} + + + +static void +usage() +{ + Panic( "no usage" ); +} + + +#define OPTION1(n,code) \ + case n : \ + code \ + argc--; \ + argv++; \ + break; + +#define OPTION2(n,code) \ + case n : \ + code \ + argc -= 2; \ + argv += 2; \ + break; + + +static void +parse_options( int* argc_p, char*** argv_p ) +{ + int argc = *argc_p; + char** argv = *argv_p; + + while (argc > 2 && argv[1][0] == '-') + { + switch (argv[1][1]) + { + OPTION2( 'f', first_glyph = atoi( argv[2] ); ) + + OPTION2( 's', pixel_size = atoi( argv[2] ); ) + + default: + usage(); + } + } + + *argc_p = argc; + *argv_p = argv; +} + + + +int main( int argc, char** argv ) +{ + char* filename = "/fonts/lcdxsr.pfa"; + + parse_options( &argc, &argv ); + + if ( argc >= 2 ) + filename = argv[1]; + + + /* create library */ + error = nv_renderer_new( 0, &renderer ); + if (error) Panic( "could not create Nirvana renderer" ); + + memory = nv_renderer_get_memory( renderer ); + + error = nvv_display_new( renderer, &display ); + if (error) Panic( "could not create display" ); + + error = nvv_surface_new( display, 460, 460, nv_pixmap_type_argb, &surface ); + if (error) Panic( "could not create surface" ); + + target = nvv_surface_get_pixmap( surface ); + + error = nv_painter_new( renderer, &painter ); + if (error) Panic( "could not create painter" ); + + nv_painter_set_target( painter, target ); + + clear_background(); + + error = FT_Init_FreeType( &freetype ); + if (error) Panic( "could not initialise FreeType" ); + + error = FT_New_Face( freetype, filename, 0, &face ); + if (error) Panic( "could not open font face" ); + + reset_size( pixel_size, grid_scale ); + + + nvv_surface_set_title( surface, "FreeType Glyph Viewer" ); + + { + NVV_EventRec event; + + glyph_index = first_glyph; + for ( ;; ) + { + clear_background(); + draw_grid(); + + ps_debug_hints = 0; + draw_ps_blue_zones(); + draw_glyph( glyph_index ); + ps2_draw_control_points(); + + nvv_surface_refresh( surface, NULL ); + + nvv_surface_listen( surface, 0, &event ); + if ( event.key == NVV_Key_Esc ) + break; + + handle_event( &event ); + switch (event.key) + { + case NVV_Key_Esc: + goto Exit; + + default: + ; + } + } + } + + Exit: + /* wait for escape */ + + + /* destroy display (and surface) */ + nvv_display_unref( display ); + nv_renderer_unref( renderer ); + + return 0; +}