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 "util/gui/font.h"
  7#include "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
 18struct GUIFont {
 19	TPLFile tdf;
 20	TPLFile iconsTdf;
 21};
 22
 23struct 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
 49void GUIFontDestroy(struct GUIFont* font) {
 50	TPL_CloseTPLFile(&font->tdf);
 51	TPL_CloseTPLFile(&font->iconsTdf);
 52	free(font);
 53}
 54
 55unsigned GUIFontHeight(const struct GUIFont* font) {
 56	UNUSED(font);
 57	return GLYPH_HEIGHT;
 58}
 59
 60unsigned 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
 68void 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
 87void GUIFontDrawGlyph(const struct GUIFont* font, int x, int y, uint32_t color, uint32_t glyph) {
 88	color = (color >> 24) | (color << 8);
 89	GXTexObj tex;
 90	// Grumble grumble, libogc is bad about const-correctness
 91	struct GUIFont* ncfont = font;
 92	TPL_GetTexture(&ncfont->tdf, 0, &tex);
 93	GX_LoadTexObj(&tex, GX_TEXMAP0);
 94
 95	GX_SetBlendMode(GX_BM_BLEND, GX_BL_SRCALPHA, GX_BL_INVSRCALPHA, GX_LO_NOOP);
 96	GX_SetVtxAttrFmt(GX_VTXFMT0, GX_VA_TEX0, GX_TEX_ST, GX_F32, 0);
 97
 98	if (glyph > 0x7F) {
 99		glyph = '?';
100	}
101	struct GUIFontGlyphMetric metric = defaultFontMetrics[glyph];
102	s16 tx = (glyph & 15) * CELL_WIDTH + metric.padding.left * 2;
103	s16 ty = (glyph >> 4) * CELL_HEIGHT + metric.padding.top * 2;
104	GX_Begin(GX_QUADS, GX_VTXFMT0, 4);
105	GX_Position2s16(x, y - GLYPH_HEIGHT + metric.padding.top * 2);
106	GX_Color1u32(color);
107	GX_TexCoord2f32(tx / 512.f, ty / 256.f);
108
109	GX_Position2s16(x + CELL_WIDTH - (metric.padding.left + metric.padding.right) * 2, y - GLYPH_HEIGHT + metric.padding.top * 2);
110	GX_Color1u32(color);
111	GX_TexCoord2f32((tx + CELL_WIDTH - (metric.padding.left + metric.padding.right) * 2) / 512.f, ty / 256.f);
112
113	GX_Position2s16(x + CELL_WIDTH - (metric.padding.left + metric.padding.right) * 2, y - GLYPH_HEIGHT + CELL_HEIGHT - metric.padding.bottom * 2);
114	GX_Color1u32(color);
115	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);
116
117	GX_Position2s16(x, y - GLYPH_HEIGHT + CELL_HEIGHT - metric.padding.bottom * 2);
118	GX_Color1u32(color);
119	GX_TexCoord2f32(tx / 512.f, (ty + CELL_HEIGHT - (metric.padding.top + metric.padding.bottom) * 2) / 256.f);
120	GX_End();
121}
122
123void GUIFontDrawIcon(const struct GUIFont* font, int x, int y, enum GUIAlignment align, enum GUIOrientation orient, uint32_t color, enum GUIIcon icon) {
124	if (icon >= GUI_ICON_MAX) {
125		return;
126	}
127
128	color = (color >> 24) | (color << 8);
129	GXTexObj tex;
130
131	struct GUIFont* ncfont = font;
132	TPL_GetTexture(&ncfont->iconsTdf, 0, &tex);
133	GX_LoadTexObj(&tex, GX_TEXMAP0);
134
135	GX_SetBlendMode(GX_BM_BLEND, GX_BL_SRCALPHA, GX_BL_INVSRCALPHA, GX_LO_NOOP);
136	GX_SetVtxAttrFmt(GX_VTXFMT0, GX_VA_TEX0, GX_TEX_ST, GX_F32, 0);
137
138	struct GUIIconMetric metric = defaultIconMetrics[icon];
139	switch (align & GUI_ALIGN_HCENTER) {
140	case GUI_ALIGN_HCENTER:
141		x -= metric.width;
142		break;
143	case GUI_ALIGN_RIGHT:
144		x -= metric.width * 2;
145		break;
146	}
147	switch (align & GUI_ALIGN_VCENTER) {
148	case GUI_ALIGN_VCENTER:
149		y -= metric.height;
150		break;
151	case GUI_ALIGN_BOTTOM:
152		y -= metric.height * 2;
153		break;
154	}
155
156	float u[4];
157	float v[4];
158
159	switch (orient) {
160	case GUI_ORIENT_0:
161	default:
162		// TODO: Rotations
163		u[0] = u[3] = metric.x / 256.f;
164		u[1] = u[2] = (metric.x + metric.width) / 256.f;
165		v[0] = v[1] = (metric.y + metric.height) / 64.f;
166		v[2] = v[3] = metric.y / 64.f;
167		break;
168	case GUI_ORIENT_HMIRROR:
169		u[0] = u[3] = (metric.x + metric.width) / 256.f;
170		u[1] = u[2] = metric.x / 256.f;
171		v[0] = v[1] = (metric.y + metric.height) / 64.f;
172		v[2] = v[3] = metric.y / 64.f;
173		break;
174	case GUI_ORIENT_VMIRROR:
175		u[0] = u[3] = metric.x / 256.f;
176		u[1] = u[2] = (metric.x + metric.width) / 256.f;
177		v[0] = v[1] = metric.y / 64.f;
178		v[2] = v[3] = (metric.y + metric.height) / 64.f;
179		break;
180	}
181
182	GX_Begin(GX_QUADS, GX_VTXFMT0, 4);
183	GX_Position2s16(x, y + metric.height * 2);
184	GX_Color1u32(color);
185	GX_TexCoord2f32(u[0], v[0]);
186
187	GX_Position2s16(x + metric.width * 2, y + metric.height * 2);
188	GX_Color1u32(color);
189	GX_TexCoord2f32(u[1], v[1]);
190
191	GX_Position2s16(x + metric.width * 2, y);
192	GX_Color1u32(color);
193	GX_TexCoord2f32(u[2], v[2]);
194
195	GX_Position2s16(x, y);
196	GX_Color1u32(color);
197	GX_TexCoord2f32(u[3], v[3]);
198	GX_End();
199}
200
201void GUIFontDrawIconSize(const struct GUIFont* font, int x, int y, int w, int h, uint32_t color, enum GUIIcon icon) {
202	if (icon >= GUI_ICON_MAX) {
203		return;
204	}
205
206	color = (color >> 24) | (color << 8);
207	GXTexObj tex;
208
209	struct GUIFont* ncfont = font;
210	TPL_GetTexture(&ncfont->iconsTdf, 0, &tex);
211	GX_LoadTexObj(&tex, GX_TEXMAP0);
212
213	GX_SetBlendMode(GX_BM_BLEND, GX_BL_SRCALPHA, GX_BL_INVSRCALPHA, GX_LO_NOOP);
214	GX_SetVtxAttrFmt(GX_VTXFMT0, GX_VA_TEX0, GX_TEX_ST, GX_F32, 0);
215
216	struct GUIIconMetric metric = defaultIconMetrics[icon];
217
218	float u[4];
219	float v[4];
220
221	if (!h) {
222		h = metric.height * 2;
223	}
224	if (!w) {
225		w = metric.width * 2;
226	}
227
228	u[0] = u[3] = metric.x / 256.f;
229	u[1] = u[2] = (metric.x + metric.width) / 256.f;
230	v[0] = v[1] = (metric.y + metric.height) / 64.f;
231	v[2] = v[3] = metric.y / 64.f;
232
233	GX_Begin(GX_QUADS, GX_VTXFMT0, 4);
234	GX_Position2s16(x, y + h);
235	GX_Color1u32(color);
236	GX_TexCoord2f32(u[0], v[0]);
237
238	GX_Position2s16(x + w, y + h);
239	GX_Color1u32(color);
240	GX_TexCoord2f32(u[1], v[1]);
241
242	GX_Position2s16(x + w, y);
243	GX_Color1u32(color);
244	GX_TexCoord2f32(u[2], v[2]);
245
246	GX_Position2s16(x, y);
247	GX_Color1u32(color);
248	GX_TexCoord2f32(u[3], v[3]);
249	GX_End();
250}