1 /* Copyright (c) 2013-2015 Jeffrey Pfau
2 *
3 * This Source Code Form is subject to the terms of the Mozilla Public
4 * License, v. 2.0. If a copy of the MPL was not distributed with this
5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
6 #include <mgba-util/gui/font.h>
7 #include <mgba-util/gui/font-metrics.h>
8 #include "icons.h"
9 #include "font.h"
10
11 #include <malloc.h>
12 #include <ogc/tpl.h>
13
14 #define GLYPH_HEIGHT 24
15 #define CELL_HEIGHT 32
16 #define CELL_WIDTH 32
17
18 struct GUIFont {
19 TPLFile tdf;
20 TPLFile iconsTdf;
21 };
22
GUIFontCreate(void)23 struct GUIFont* GUIFontCreate(void) {
24 struct GUIFont* guiFont = malloc(sizeof(struct GUIFont));
25 if (!guiFont) {
26 return 0;
27 }
28
29 // libogc's TPL code modifies and frees this itself...
30 void* fontTpl = memalign(32, font_size);
31 if (!fontTpl) {
32 free(guiFont);
33 return 0;
34 }
35 memcpy(fontTpl, font, font_size);
36 TPL_OpenTPLFromMemory(&guiFont->tdf, fontTpl, font_size);
37
38 void* iconsTpl = memalign(32, icons_size);
39 if (!iconsTpl) {
40 TPL_CloseTPLFile(&guiFont->tdf);
41 free(guiFont);
42 return 0;
43 }
44 memcpy(iconsTpl, icons, icons_size);
45 TPL_OpenTPLFromMemory(&guiFont->iconsTdf, iconsTpl, icons_size);
46 return guiFont;
47 }
48
GUIFontDestroy(struct GUIFont * font)49 void GUIFontDestroy(struct GUIFont* font) {
50 TPL_CloseTPLFile(&font->tdf);
51 TPL_CloseTPLFile(&font->iconsTdf);
52 free(font);
53 }
54
GUIFontHeight(const struct GUIFont * font)55 unsigned GUIFontHeight(const struct GUIFont* font) {
56 UNUSED(font);
57 return GLYPH_HEIGHT;
58 }
59
GUIFontGlyphWidth(const struct GUIFont * font,uint32_t glyph)60 unsigned GUIFontGlyphWidth(const struct GUIFont* font, uint32_t glyph) {
61 UNUSED(font);
62 if (glyph > 0x7F) {
63 glyph = '?';
64 }
65 return defaultFontMetrics[glyph].width * 2;
66 }
67
GUIFontIconMetrics(const struct GUIFont * font,enum GUIIcon icon,unsigned * w,unsigned * h)68 void GUIFontIconMetrics(const struct GUIFont* font, enum GUIIcon icon, unsigned* w, unsigned* h) {
69 UNUSED(font);
70 if (icon >= GUI_ICON_MAX) {
71 if (w) {
72 *w = 0;
73 }
74 if (h) {
75 *h = 0;
76 }
77 } else {
78 if (w) {
79 *w = defaultIconMetrics[icon].width * 2;
80 }
81 if (h) {
82 *h = defaultIconMetrics[icon].height * 2;
83 }
84 }
85 }
86
GUIFontDrawGlyph(struct GUIFont * font,int x,int y,uint32_t color,uint32_t glyph)87 void GUIFontDrawGlyph(struct GUIFont* font, int x, int y, uint32_t color, uint32_t glyph) {
88 color = (color >> 24) | (color << 8);
89 GXTexObj tex;
90 TPL_GetTexture(&font->tdf, 0, &tex);
91 GX_LoadTexObj(&tex, GX_TEXMAP0);
92
93 GX_SetBlendMode(GX_BM_BLEND, GX_BL_SRCALPHA, GX_BL_INVSRCALPHA, GX_LO_NOOP);
94 GX_SetVtxAttrFmt(GX_VTXFMT0, GX_VA_TEX0, GX_TEX_ST, GX_F32, 0);
95
96 if (glyph > 0x7F) {
97 glyph = '?';
98 }
99 struct GUIFontGlyphMetric metric = defaultFontMetrics[glyph];
100 s16 tx = (glyph & 15) * CELL_WIDTH + metric.padding.left * 2;
101 s16 ty = (glyph >> 4) * CELL_HEIGHT + metric.padding.top * 2;
102 GX_Begin(GX_QUADS, GX_VTXFMT0, 4);
103 GX_Position2s16(x, y - GLYPH_HEIGHT + metric.padding.top * 2);
104 GX_Color1u32(color);
105 GX_TexCoord2f32(tx / 512.f, ty / 256.f);
106
107 GX_Position2s16(x + CELL_WIDTH - (metric.padding.left + metric.padding.right) * 2, y - GLYPH_HEIGHT + metric.padding.top * 2);
108 GX_Color1u32(color);
109 GX_TexCoord2f32((tx + CELL_WIDTH - (metric.padding.left + metric.padding.right) * 2) / 512.f, ty / 256.f);
110
111 GX_Position2s16(x + CELL_WIDTH - (metric.padding.left + metric.padding.right) * 2, y - GLYPH_HEIGHT + CELL_HEIGHT - metric.padding.bottom * 2);
112 GX_Color1u32(color);
113 GX_TexCoord2f32((tx + CELL_WIDTH - (metric.padding.left + metric.padding.right) * 2) / 512.f, (ty + CELL_HEIGHT - (metric.padding.top + metric.padding.bottom) * 2) / 256.f);
114
115 GX_Position2s16(x, y - GLYPH_HEIGHT + CELL_HEIGHT - metric.padding.bottom * 2);
116 GX_Color1u32(color);
117 GX_TexCoord2f32(tx / 512.f, (ty + CELL_HEIGHT - (metric.padding.top + metric.padding.bottom) * 2) / 256.f);
118 GX_End();
119 }
120
GUIFontDrawIcon(struct GUIFont * font,int x,int y,enum GUIAlignment align,enum GUIOrientation orient,uint32_t color,enum GUIIcon icon)121 void GUIFontDrawIcon(struct GUIFont* font, int x, int y, enum GUIAlignment align, enum GUIOrientation orient, uint32_t color, enum GUIIcon icon) {
122 if (icon >= GUI_ICON_MAX) {
123 return;
124 }
125
126 color = (color >> 24) | (color << 8);
127 GXTexObj tex;
128
129 TPL_GetTexture(&font->iconsTdf, 0, &tex);
130 GX_LoadTexObj(&tex, GX_TEXMAP0);
131
132 GX_SetBlendMode(GX_BM_BLEND, GX_BL_SRCALPHA, GX_BL_INVSRCALPHA, GX_LO_NOOP);
133 GX_SetVtxAttrFmt(GX_VTXFMT0, GX_VA_TEX0, GX_TEX_ST, GX_F32, 0);
134
135 struct GUIIconMetric metric = defaultIconMetrics[icon];
136 switch (align & GUI_ALIGN_HCENTER) {
137 case GUI_ALIGN_HCENTER:
138 x -= metric.width;
139 break;
140 case GUI_ALIGN_RIGHT:
141 x -= metric.width * 2;
142 break;
143 }
144 switch (align & GUI_ALIGN_VCENTER) {
145 case GUI_ALIGN_VCENTER:
146 y -= metric.height;
147 break;
148 case GUI_ALIGN_BOTTOM:
149 y -= metric.height * 2;
150 break;
151 }
152
153 float u[4];
154 float v[4];
155
156 switch (orient) {
157 case GUI_ORIENT_0:
158 default:
159 // TODO: Rotations
160 u[0] = u[3] = metric.x / 256.f;
161 u[1] = u[2] = (metric.x + metric.width) / 256.f;
162 v[0] = v[1] = (metric.y + metric.height) / 64.f;
163 v[2] = v[3] = metric.y / 64.f;
164 break;
165 case GUI_ORIENT_HMIRROR:
166 u[0] = u[3] = (metric.x + metric.width) / 256.f;
167 u[1] = u[2] = metric.x / 256.f;
168 v[0] = v[1] = (metric.y + metric.height) / 64.f;
169 v[2] = v[3] = metric.y / 64.f;
170 break;
171 case GUI_ORIENT_VMIRROR:
172 u[0] = u[3] = metric.x / 256.f;
173 u[1] = u[2] = (metric.x + metric.width) / 256.f;
174 v[0] = v[1] = metric.y / 64.f;
175 v[2] = v[3] = (metric.y + metric.height) / 64.f;
176 break;
177 }
178
179 GX_Begin(GX_QUADS, GX_VTXFMT0, 4);
180 GX_Position2s16(x, y + metric.height * 2);
181 GX_Color1u32(color);
182 GX_TexCoord2f32(u[0], v[0]);
183
184 GX_Position2s16(x + metric.width * 2, y + metric.height * 2);
185 GX_Color1u32(color);
186 GX_TexCoord2f32(u[1], v[1]);
187
188 GX_Position2s16(x + metric.width * 2, y);
189 GX_Color1u32(color);
190 GX_TexCoord2f32(u[2], v[2]);
191
192 GX_Position2s16(x, y);
193 GX_Color1u32(color);
194 GX_TexCoord2f32(u[3], v[3]);
195 GX_End();
196 }
197
GUIFontDrawIconSize(struct GUIFont * font,int x,int y,int w,int h,uint32_t color,enum GUIIcon icon)198 void GUIFontDrawIconSize(struct GUIFont* font, int x, int y, int w, int h, uint32_t color, enum GUIIcon icon) {
199 if (icon >= GUI_ICON_MAX) {
200 return;
201 }
202
203 color = (color >> 24) | (color << 8);
204 GXTexObj tex;
205
206 TPL_GetTexture(&font->iconsTdf, 0, &tex);
207 GX_LoadTexObj(&tex, GX_TEXMAP0);
208
209 GX_SetBlendMode(GX_BM_BLEND, GX_BL_SRCALPHA, GX_BL_INVSRCALPHA, GX_LO_NOOP);
210 GX_SetVtxAttrFmt(GX_VTXFMT0, GX_VA_TEX0, GX_TEX_ST, GX_F32, 0);
211
212 struct GUIIconMetric metric = defaultIconMetrics[icon];
213
214 float u[4];
215 float v[4];
216
217 if (!h) {
218 h = metric.height * 2;
219 }
220 if (!w) {
221 w = metric.width * 2;
222 }
223
224 u[0] = u[3] = metric.x / 256.f;
225 u[1] = u[2] = (metric.x + metric.width) / 256.f;
226 v[0] = v[1] = (metric.y + metric.height) / 64.f;
227 v[2] = v[3] = metric.y / 64.f;
228
229 GX_Begin(GX_QUADS, GX_VTXFMT0, 4);
230 GX_Position2s16(x, y + h);
231 GX_Color1u32(color);
232 GX_TexCoord2f32(u[0], v[0]);
233
234 GX_Position2s16(x + w, y + h);
235 GX_Color1u32(color);
236 GX_TexCoord2f32(u[1], v[1]);
237
238 GX_Position2s16(x + w, y);
239 GX_Color1u32(color);
240 GX_TexCoord2f32(u[2], v[2]);
241
242 GX_Position2s16(x, y);
243 GX_Color1u32(color);
244 GX_TexCoord2f32(u[3], v[3]);
245 GX_End();
246 }
247