2009-07-28 21:32:10 +00:00
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// Copyright (C) 2003 Dolphin Project.
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2008-12-08 05:25:12 +00:00
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, version 2.0.
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License 2.0 for more details.
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// A copy of the GPL 2.0 should have been included with the program.
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// If not, see http://www.gnu.org/licenses/
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// Official SVN repository and contact information can be found at
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// http://code.google.com/p/dolphin-emu/
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2009-06-13 22:08:01 +00:00
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#include "GLUtil.h"
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2008-12-08 05:25:12 +00:00
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2009-10-13 06:12:58 +00:00
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#include "RasterFont.h"
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2008-12-08 05:25:12 +00:00
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// globals
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2012-12-11 11:37:08 +00:00
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static const u32 char_width = 8;
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static const u32 char_height = 13;
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static const u32 char_offset = 32;
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static const u32 char_count = 95;
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const u8 rasters[char_count][char_height] = {
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2008-12-08 05:25:12 +00:00
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{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
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{0x00, 0x00, 0x18, 0x18, 0x00, 0x00, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18},
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{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x36, 0x36, 0x36, 0x36},
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{0x00, 0x00, 0x00, 0x66, 0x66, 0xff, 0x66, 0x66, 0xff, 0x66, 0x66, 0x00, 0x00},
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{0x00, 0x00, 0x18, 0x7e, 0xff, 0x1b, 0x1f, 0x7e, 0xf8, 0xd8, 0xff, 0x7e, 0x18},
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{0x00, 0x00, 0x0e, 0x1b, 0xdb, 0x6e, 0x30, 0x18, 0x0c, 0x76, 0xdb, 0xd8, 0x70},
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{0x00, 0x00, 0x7f, 0xc6, 0xcf, 0xd8, 0x70, 0x70, 0xd8, 0xcc, 0xcc, 0x6c, 0x38},
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{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x18, 0x1c, 0x0c, 0x0e},
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{0x00, 0x00, 0x0c, 0x18, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x18, 0x0c},
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{0x00, 0x00, 0x30, 0x18, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x18, 0x30},
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{0x00, 0x00, 0x00, 0x00, 0x99, 0x5a, 0x3c, 0xff, 0x3c, 0x5a, 0x99, 0x00, 0x00},
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{0x00, 0x00, 0x00, 0x18, 0x18, 0x18, 0xff, 0xff, 0x18, 0x18, 0x18, 0x00, 0x00},
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{0x00, 0x00, 0x30, 0x18, 0x1c, 0x1c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
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{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00},
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{0x00, 0x00, 0x00, 0x38, 0x38, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
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{0x00, 0x60, 0x60, 0x30, 0x30, 0x18, 0x18, 0x0c, 0x0c, 0x06, 0x06, 0x03, 0x03},
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{0x00, 0x00, 0x3c, 0x66, 0xc3, 0xe3, 0xf3, 0xdb, 0xcf, 0xc7, 0xc3, 0x66, 0x3c},
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{0x00, 0x00, 0x7e, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x78, 0x38, 0x18},
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{0x00, 0x00, 0xff, 0xc0, 0xc0, 0x60, 0x30, 0x18, 0x0c, 0x06, 0x03, 0xe7, 0x7e},
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{0x00, 0x00, 0x7e, 0xe7, 0x03, 0x03, 0x07, 0x7e, 0x07, 0x03, 0x03, 0xe7, 0x7e},
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{0x00, 0x00, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0xff, 0xcc, 0x6c, 0x3c, 0x1c, 0x0c},
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{0x00, 0x00, 0x7e, 0xe7, 0x03, 0x03, 0x07, 0xfe, 0xc0, 0xc0, 0xc0, 0xc0, 0xff},
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{0x00, 0x00, 0x7e, 0xe7, 0xc3, 0xc3, 0xc7, 0xfe, 0xc0, 0xc0, 0xc0, 0xe7, 0x7e},
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{0x00, 0x00, 0x30, 0x30, 0x30, 0x30, 0x18, 0x0c, 0x06, 0x03, 0x03, 0x03, 0xff},
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{0x00, 0x00, 0x7e, 0xe7, 0xc3, 0xc3, 0xe7, 0x7e, 0xe7, 0xc3, 0xc3, 0xe7, 0x7e},
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{0x00, 0x00, 0x7e, 0xe7, 0x03, 0x03, 0x03, 0x7f, 0xe7, 0xc3, 0xc3, 0xe7, 0x7e},
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{0x00, 0x00, 0x00, 0x38, 0x38, 0x00, 0x00, 0x38, 0x38, 0x00, 0x00, 0x00, 0x00},
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{0x00, 0x00, 0x30, 0x18, 0x1c, 0x1c, 0x00, 0x00, 0x1c, 0x1c, 0x00, 0x00, 0x00},
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{0x00, 0x00, 0x06, 0x0c, 0x18, 0x30, 0x60, 0xc0, 0x60, 0x30, 0x18, 0x0c, 0x06},
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{0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0x00, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00},
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{0x00, 0x00, 0x60, 0x30, 0x18, 0x0c, 0x06, 0x03, 0x06, 0x0c, 0x18, 0x30, 0x60},
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{0x00, 0x00, 0x18, 0x00, 0x00, 0x18, 0x18, 0x0c, 0x06, 0x03, 0xc3, 0xc3, 0x7e},
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{0x00, 0x00, 0x3f, 0x60, 0xcf, 0xdb, 0xd3, 0xdd, 0xc3, 0x7e, 0x00, 0x00, 0x00},
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{0x00, 0x00, 0xc3, 0xc3, 0xc3, 0xc3, 0xff, 0xc3, 0xc3, 0xc3, 0x66, 0x3c, 0x18},
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{0x00, 0x00, 0xfe, 0xc7, 0xc3, 0xc3, 0xc7, 0xfe, 0xc7, 0xc3, 0xc3, 0xc7, 0xfe},
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{0x00, 0x00, 0x7e, 0xe7, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xe7, 0x7e},
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{0x00, 0x00, 0xfc, 0xce, 0xc7, 0xc3, 0xc3, 0xc3, 0xc3, 0xc3, 0xc7, 0xce, 0xfc},
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{0x00, 0x00, 0xff, 0xc0, 0xc0, 0xc0, 0xc0, 0xfc, 0xc0, 0xc0, 0xc0, 0xc0, 0xff},
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{0x00, 0x00, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xfc, 0xc0, 0xc0, 0xc0, 0xff},
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{0x00, 0x00, 0x7e, 0xe7, 0xc3, 0xc3, 0xcf, 0xc0, 0xc0, 0xc0, 0xc0, 0xe7, 0x7e},
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{0x00, 0x00, 0xc3, 0xc3, 0xc3, 0xc3, 0xc3, 0xff, 0xc3, 0xc3, 0xc3, 0xc3, 0xc3},
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{0x00, 0x00, 0x7e, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x7e},
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{0x00, 0x00, 0x7c, 0xee, 0xc6, 0x06, 0x06, 0x06, 0x06, 0x06, 0x06, 0x06, 0x06},
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{0x00, 0x00, 0xc3, 0xc6, 0xcc, 0xd8, 0xf0, 0xe0, 0xf0, 0xd8, 0xcc, 0xc6, 0xc3},
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{0x00, 0x00, 0xff, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0},
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{0x00, 0x00, 0xc3, 0xc3, 0xc3, 0xc3, 0xc3, 0xc3, 0xdb, 0xff, 0xff, 0xe7, 0xc3},
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{0x00, 0x00, 0xc7, 0xc7, 0xcf, 0xcf, 0xdf, 0xdb, 0xfb, 0xf3, 0xf3, 0xe3, 0xe3},
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{0x00, 0x00, 0x7e, 0xe7, 0xc3, 0xc3, 0xc3, 0xc3, 0xc3, 0xc3, 0xc3, 0xe7, 0x7e},
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{0x00, 0x00, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xfe, 0xc7, 0xc3, 0xc3, 0xc7, 0xfe},
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{0x00, 0x00, 0x3f, 0x6e, 0xdf, 0xdb, 0xc3, 0xc3, 0xc3, 0xc3, 0xc3, 0x66, 0x3c},
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{0x00, 0x00, 0xc3, 0xc6, 0xcc, 0xd8, 0xf0, 0xfe, 0xc7, 0xc3, 0xc3, 0xc7, 0xfe},
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{0x00, 0x00, 0x7e, 0xe7, 0x03, 0x03, 0x07, 0x7e, 0xe0, 0xc0, 0xc0, 0xe7, 0x7e},
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{0x00, 0x00, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0xff},
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{0x00, 0x00, 0x7e, 0xe7, 0xc3, 0xc3, 0xc3, 0xc3, 0xc3, 0xc3, 0xc3, 0xc3, 0xc3},
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{0x00, 0x00, 0x18, 0x3c, 0x3c, 0x66, 0x66, 0xc3, 0xc3, 0xc3, 0xc3, 0xc3, 0xc3},
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{0x00, 0x00, 0xc3, 0xe7, 0xff, 0xff, 0xdb, 0xdb, 0xc3, 0xc3, 0xc3, 0xc3, 0xc3},
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{0x00, 0x00, 0xc3, 0x66, 0x66, 0x3c, 0x3c, 0x18, 0x3c, 0x3c, 0x66, 0x66, 0xc3},
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{0x00, 0x00, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x3c, 0x3c, 0x66, 0x66, 0xc3},
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{0x00, 0x00, 0xff, 0xc0, 0xc0, 0x60, 0x30, 0x7e, 0x0c, 0x06, 0x03, 0x03, 0xff},
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{0x00, 0x00, 0x3c, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x3c},
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{0x00, 0x03, 0x03, 0x06, 0x06, 0x0c, 0x0c, 0x18, 0x18, 0x30, 0x30, 0x60, 0x60},
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{0x00, 0x00, 0x3c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x3c},
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{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xc3, 0x66, 0x3c, 0x18},
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{0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
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{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x18, 0x38, 0x30, 0x70},
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{0x00, 0x00, 0x7f, 0xc3, 0xc3, 0x7f, 0x03, 0xc3, 0x7e, 0x00, 0x00, 0x00, 0x00},
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{0x00, 0x00, 0xfe, 0xc3, 0xc3, 0xc3, 0xc3, 0xfe, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0},
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{0x00, 0x00, 0x7e, 0xc3, 0xc0, 0xc0, 0xc0, 0xc3, 0x7e, 0x00, 0x00, 0x00, 0x00},
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{0x00, 0x00, 0x7f, 0xc3, 0xc3, 0xc3, 0xc3, 0x7f, 0x03, 0x03, 0x03, 0x03, 0x03},
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{0x00, 0x00, 0x7f, 0xc0, 0xc0, 0xfe, 0xc3, 0xc3, 0x7e, 0x00, 0x00, 0x00, 0x00},
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{0x00, 0x00, 0x30, 0x30, 0x30, 0x30, 0x30, 0xfc, 0x30, 0x30, 0x30, 0x33, 0x1e},
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{0x7e, 0xc3, 0x03, 0x03, 0x7f, 0xc3, 0xc3, 0xc3, 0x7e, 0x00, 0x00, 0x00, 0x00},
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{0x00, 0x00, 0xc3, 0xc3, 0xc3, 0xc3, 0xc3, 0xc3, 0xfe, 0xc0, 0xc0, 0xc0, 0xc0},
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{0x00, 0x00, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x00, 0x00, 0x18, 0x00},
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{0x38, 0x6c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x00, 0x00, 0x0c, 0x00},
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{0x00, 0x00, 0xc6, 0xcc, 0xf8, 0xf0, 0xd8, 0xcc, 0xc6, 0xc0, 0xc0, 0xc0, 0xc0},
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{0x00, 0x00, 0x7e, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x78},
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{0x00, 0x00, 0xdb, 0xdb, 0xdb, 0xdb, 0xdb, 0xdb, 0xfe, 0x00, 0x00, 0x00, 0x00},
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{0x00, 0x00, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6, 0xfc, 0x00, 0x00, 0x00, 0x00},
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{0x00, 0x00, 0x7c, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6, 0x7c, 0x00, 0x00, 0x00, 0x00},
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{0xc0, 0xc0, 0xc0, 0xfe, 0xc3, 0xc3, 0xc3, 0xc3, 0xfe, 0x00, 0x00, 0x00, 0x00},
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{0x03, 0x03, 0x03, 0x7f, 0xc3, 0xc3, 0xc3, 0xc3, 0x7f, 0x00, 0x00, 0x00, 0x00},
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{0x00, 0x00, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xe0, 0xfe, 0x00, 0x00, 0x00, 0x00},
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{0x00, 0x00, 0xfe, 0x03, 0x03, 0x7e, 0xc0, 0xc0, 0x7f, 0x00, 0x00, 0x00, 0x00},
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{0x00, 0x00, 0x1c, 0x36, 0x30, 0x30, 0x30, 0x30, 0xfc, 0x30, 0x30, 0x30, 0x00},
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{0x00, 0x00, 0x7e, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6, 0xc6, 0x00, 0x00, 0x00, 0x00},
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{0x00, 0x00, 0x18, 0x3c, 0x3c, 0x66, 0x66, 0xc3, 0xc3, 0x00, 0x00, 0x00, 0x00},
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{0x00, 0x00, 0xc3, 0xe7, 0xff, 0xdb, 0xc3, 0xc3, 0xc3, 0x00, 0x00, 0x00, 0x00},
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{0x00, 0x00, 0xc3, 0x66, 0x3c, 0x18, 0x3c, 0x66, 0xc3, 0x00, 0x00, 0x00, 0x00},
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{0xc0, 0x60, 0x60, 0x30, 0x18, 0x3c, 0x66, 0x66, 0xc3, 0x00, 0x00, 0x00, 0x00},
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{0x00, 0x00, 0xff, 0x60, 0x30, 0x18, 0x0c, 0x06, 0xff, 0x00, 0x00, 0x00, 0x00},
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{0x00, 0x00, 0x0f, 0x18, 0x18, 0x18, 0x38, 0xf0, 0x38, 0x18, 0x18, 0x18, 0x0f},
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{0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18},
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{0x00, 0x00, 0xf0, 0x18, 0x18, 0x18, 0x1c, 0x0f, 0x1c, 0x18, 0x18, 0x18, 0xf0},
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{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x06, 0x8f, 0xf1, 0x60, 0x00, 0x00, 0x00}
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};
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2012-12-11 21:08:53 +00:00
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static const char *s_vertex_shader =
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2012-12-11 21:46:02 +00:00
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"#version 330 core\n"
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"layout(location = 0) in vec2 vertexPosition;\n"
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"layout(location = 1) in vec2 texturePosition;\n"
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"out vec2 tpos;\n"
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2012-12-11 21:08:53 +00:00
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"void main(void) {\n"
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" gl_Position = vec4(vertexPosition,0,1);\n"
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" tpos = texturePosition;\n"
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"}\n";
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static const char *s_fragment_shader =
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2012-12-11 21:46:02 +00:00
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"#version 330 core\n"
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"#extension GL_ARB_texture_rectangle : enable\n"
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2012-12-11 21:08:53 +00:00
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"uniform sampler2DRect textureSampler;\n"
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"uniform vec4 color;\n"
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2012-12-11 21:46:02 +00:00
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"in vec2 tpos;\n"
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"out vec4 gl_FragColor;\n"
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2012-12-11 21:08:53 +00:00
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"void main(void) {\n"
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" gl_FragColor = texture2DRect(textureSampler,tpos) * color;\n"
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"}\n";
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2008-12-08 05:25:12 +00:00
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RasterFont::RasterFont()
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{
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2012-12-11 11:37:08 +00:00
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// generate the texture
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glGenTextures(1, &texture);
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glBindTexture(GL_TEXTURE_RECTANGLE, texture);
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u32* texture_data = new u32[char_width*char_count*char_height];
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for(u32 y=0; y<char_height; y++) {
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for(u32 c=0; c<char_count; c++) {
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for(u32 x=0; x<char_width; x++) {
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bool pixel = rasters[c][y] & (1<<(char_width-x-1));
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texture_data[char_width*char_count*y+char_width*c+x] = pixel ? -1 : 0;
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}
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}
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2009-02-28 16:33:59 +00:00
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}
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2012-12-11 11:37:08 +00:00
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glTexImage2D(GL_TEXTURE_RECTANGLE, 0, GL_RGBA, char_width*char_count, char_height, 0, GL_RGBA, GL_UNSIGNED_BYTE, texture_data);
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delete [] texture_data;
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// generate VBO & VAO
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glGenBuffers(1, &VBO);
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glGenVertexArrays(1, &VAO);
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glBindBuffer(GL_ARRAY_BUFFER, VBO);
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glBindVertexArray(VAO);
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2012-12-11 21:08:53 +00:00
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glEnableVertexAttribArray(0); // vertexPosition
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glVertexAttribPointer(0, 2, GL_FLOAT, 0, sizeof(GLfloat)*4, NULL);
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glEnableVertexAttribArray(1); // texturePosition
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glVertexAttribPointer(1, 2, GL_FLOAT, 0, sizeof(GLfloat)*4, (GLfloat*)NULL+2);
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// generate shader
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2012-12-12 09:40:03 +00:00
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shader_program = OpenGL_CompileProgram(s_vertex_shader, s_fragment_shader);
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2012-12-11 21:08:53 +00:00
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// bound uniforms
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glUseProgram(shader_program);
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glUniform1i(glGetUniformLocation(shader_program,"textureSampler"), 0); // GL_TEXTURE0
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uniform_color_id = glGetUniformLocation(shader_program,"color");
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glUniform4f(uniform_color_id, 1, 1, 1, 1);
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cached_color = -1;
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glUseProgram(0);
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2008-12-08 05:25:12 +00:00
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}
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RasterFont::~RasterFont()
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{
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2012-12-11 11:37:08 +00:00
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glDeleteTextures(1, &texture);
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glDeleteBuffers(1, &VBO);
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glDeleteVertexArrays(1, &VAO);
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2012-12-11 21:08:53 +00:00
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glDeleteProgram(shader_program);
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2008-12-08 05:25:12 +00:00
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}
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|
2012-12-11 11:37:08 +00:00
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void RasterFont::printMultilineText(const char *text, double start_x, double start_y, double z, int bbWidth, int bbHeight, u32 color)
|
2008-12-08 05:25:12 +00:00
|
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|
{
|
2012-12-11 11:37:08 +00:00
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int length = (int)strlen(text);
|
2009-06-13 22:08:01 +00:00
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if (!length)
|
2012-12-11 11:37:08 +00:00
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return; // nothing to do
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glBindVertexArray(VAO);
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glBindBuffer(GL_ARRAY_BUFFER, VBO);
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glBufferData(GL_ARRAY_BUFFER, length*4*6*sizeof(GLfloat), NULL, GL_STREAM_DRAW);
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GLfloat *vertices = (GLfloat*)glMapBuffer(GL_ARRAY_BUFFER, GL_WRITE_ONLY);
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int usage = 0;
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GLfloat delta_x = 2*char_width/GLfloat(bbWidth);
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GLfloat delta_y = 2*char_height/GLfloat(bbHeight);
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GLfloat border_x = 1*2/GLfloat(bbWidth);
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GLfloat border_y = 2*2/GLfloat(bbHeight);
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|
GLfloat x = start_x;
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|
GLfloat y = start_y;
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|
for(int i=0; i<length; i++) {
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|
|
u8 c = text[i];
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|
|
if(c == '\n') {
|
2009-02-28 16:33:59 +00:00
|
|
|
x = start_x;
|
2012-12-11 11:37:08 +00:00
|
|
|
y -= delta_y + border_y;
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|
|
continue;
|
2008-12-08 05:25:12 +00:00
|
|
|
}
|
2012-12-11 11:37:08 +00:00
|
|
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|
|
// do not print spaces, they can be skipped easyly
|
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|
|
if(c == ' ') {
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|
|
x += delta_x + border_x;
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|
|
continue;
|
2008-12-08 05:25:12 +00:00
|
|
|
}
|
2012-12-11 11:37:08 +00:00
|
|
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|
|
if(c < char_offset || c >= char_count+char_offset) continue;
|
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|
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|
|
vertices[usage++] = x;
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vertices[usage++] = y;
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|
|
vertices[usage++] = (c-char_offset)*char_width;
|
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|
|
vertices[usage++] = 0;
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|
|
vertices[usage++] = x+delta_x;
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|
vertices[usage++] = y;
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|
vertices[usage++] = (c-char_offset+1)*char_width;
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|
|
vertices[usage++] = 0;
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|
|
vertices[usage++] = x+delta_x;
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|
|
vertices[usage++] = y+delta_y;
|
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|
|
vertices[usage++] = (c-char_offset+1)*char_width;
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|
|
vertices[usage++] = char_height;
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|
|
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|
|
vertices[usage++] = x;
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|
|
vertices[usage++] = y;
|
|
|
|
|
vertices[usage++] = (c-char_offset)*char_width;
|
|
|
|
|
vertices[usage++] = 0;
|
|
|
|
|
|
|
|
|
|
vertices[usage++] = x+delta_x;
|
|
|
|
|
vertices[usage++] = y+delta_y;
|
|
|
|
|
vertices[usage++] = (c-char_offset+1)*char_width;
|
|
|
|
|
vertices[usage++] = char_height;
|
|
|
|
|
|
|
|
|
|
vertices[usage++] = x;
|
|
|
|
|
vertices[usage++] = y+delta_y;
|
|
|
|
|
vertices[usage++] = (c-char_offset)*char_width;
|
|
|
|
|
vertices[usage++] = char_height;
|
|
|
|
|
|
|
|
|
|
x += delta_x + border_x;
|
2008-12-08 05:25:12 +00:00
|
|
|
}
|
2012-12-11 11:37:08 +00:00
|
|
|
glUnmapBuffer(GL_ARRAY_BUFFER);
|
|
|
|
|
|
|
|
|
|
// no printable char, so also nothing to do
|
|
|
|
|
if(!usage) return;
|
|
|
|
|
|
2012-12-11 21:08:53 +00:00
|
|
|
glUseProgram(shader_program);
|
|
|
|
|
|
|
|
|
|
if(color != cached_color) {
|
|
|
|
|
glUniform4f(uniform_color_id, ((color>>0)&0xff)/255.f,((color>>8)&0xff)/255.f,((color>>16)&0xff)/255.f,((color>>24)&0xff)/255.f);
|
|
|
|
|
cached_color = color;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
glDisable(GL_DEPTH_TEST);
|
2012-12-11 11:37:08 +00:00
|
|
|
glEnable(GL_BLEND);
|
|
|
|
|
glBlendFuncSeparate(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA, GL_ONE, GL_ZERO);
|
|
|
|
|
glActiveTexture(GL_TEXTURE0);
|
|
|
|
|
glBindTexture(GL_TEXTURE_RECTANGLE, texture);
|
|
|
|
|
glDrawArrays(GL_TRIANGLES, 0, usage/4);
|
2012-12-11 21:08:53 +00:00
|
|
|
|
|
|
|
|
glUseProgram(0);
|
2008-08-24 21:50:41 +00:00
|
|
|
}
|
