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 "util/png-io.h"
  9#include "util/vfs.h"
 10#include "platform/3ds/ctr-gpu.h"
 11#include "icons.h"
 12#include "font.h"
 13
 14#define CELL_HEIGHT 16
 15#define CELL_WIDTH 16
 16#define GLYPH_HEIGHT 12
 17
 18struct GUIFont {
 19	struct ctrTexture texture;
 20	struct ctrTexture icons;
 21};
 22
 23struct GUIFont* GUIFontCreate(void) {
 24	struct GUIFont* guiFont = malloc(sizeof(struct GUIFont));
 25	if (!guiFont) {
 26		return 0;
 27	}
 28
 29	struct ctrTexture* tex = &guiFont->texture;
 30	ctrTexture_Init(tex);
 31	tex->data = vramAlloc(256 * 128 * 2);
 32	tex->format = GPU_RGBA5551;
 33	tex->width = 256;
 34	tex->height = 128;
 35
 36	GSPGPU_FlushDataCache(font, font_size);
 37	GX_RequestDma((u32*) font, tex->data, font_size);
 38	gspWaitForDMA();
 39
 40	tex = &guiFont->icons;
 41	ctrTexture_Init(tex);
 42	tex->data = vramAlloc(256 * 64 * 2);
 43	tex->format = GPU_RGBA5551;
 44	tex->width = 256;
 45	tex->height = 64;
 46
 47	GSPGPU_FlushDataCache(icons, icons_size);
 48	GX_RequestDma((u32*) icons, tex->data, icons_size);
 49	gspWaitForDMA();
 50
 51	return guiFont;
 52}
 53
 54void GUIFontDestroy(struct GUIFont* font) {
 55	vramFree(font->texture.data);
 56	vramFree(font->icons.data);
 57	free(font);
 58}
 59
 60unsigned GUIFontHeight(const struct GUIFont* font) {
 61	UNUSED(font);
 62	return GLYPH_HEIGHT;
 63}
 64
 65unsigned GUIFontGlyphWidth(const struct GUIFont* font, uint32_t glyph) {
 66	UNUSED(font);
 67	if (glyph > 0x7F) {
 68		glyph = 0;
 69	}
 70	return defaultFontMetrics[glyph].width;
 71}
 72
 73void GUIFontIconMetrics(const struct GUIFont* font, enum GUIIcon icon, unsigned* w, unsigned* h) {
 74	UNUSED(font);
 75	if (icon >= GUI_ICON_MAX) {
 76		if (w) {
 77			*w = 0;
 78		}
 79		if (h) {
 80			*h = 0;
 81		}
 82	} else {
 83		if (w) {
 84			*w = defaultIconMetrics[icon].width;
 85		}
 86		if (h) {
 87			*h = defaultIconMetrics[icon].height;
 88		}
 89	}
 90}
 91
 92void GUIFontDrawGlyph(const struct GUIFont* font, int glyph_x, int glyph_y, uint32_t color, uint32_t glyph) {
 93	ctrActivateTexture(&font->texture);
 94
 95	if (glyph > 0x7F) {
 96		glyph = '?';
 97	}
 98
 99	struct GUIFontGlyphMetric metric = defaultFontMetrics[glyph];
100	u16 x = glyph_x - metric.padding.left;
101	u16 y = glyph_y - GLYPH_HEIGHT;
102	u16 u = (glyph % 16u) * CELL_WIDTH;
103	u16 v = (glyph / 16u) * CELL_HEIGHT;
104
105	ctrAddRect(color, x, y, u, v, CELL_WIDTH, CELL_HEIGHT);
106}
107
108void GUIFontDrawIcon(const struct GUIFont* font, int x, int y, enum GUIAlignment align, enum GUIOrientation orient, uint32_t color, enum GUIIcon icon) {
109	ctrActivateTexture(&font->icons);
110
111	if (icon >= GUI_ICON_MAX) {
112		return;
113	}
114
115	struct GUIIconMetric metric = defaultIconMetrics[icon];
116	switch (align & GUI_ALIGN_HCENTER) {
117	case GUI_ALIGN_HCENTER:
118		x -= metric.width / 2;
119		break;
120	case GUI_ALIGN_RIGHT:
121		x -= metric.width;
122		break;
123	}
124	switch (align & GUI_ALIGN_VCENTER) {
125	case GUI_ALIGN_VCENTER:
126		y -= metric.height / 2;
127		break;
128	case GUI_ALIGN_BOTTOM:
129		y -= metric.height;
130		break;
131	}
132	switch (orient) {
133	case GUI_ORIENT_HMIRROR:
134		ctrAddRectScaled(color, x + metric.width, y, -metric.width, metric.height, metric.x, metric.y, metric.width, metric.height);
135		break;
136	case GUI_ORIENT_VMIRROR:
137		ctrAddRectScaled(color, x, y + metric.height, metric.width, -metric.height, metric.x, metric.y, metric.width, metric.height);
138		break;
139	case GUI_ORIENT_0:
140	default:
141		// TODO: Rotation
142		ctrAddRect(color, x, y, metric.x, metric.y, metric.width, metric.height);
143		break;
144	}
145}
146
147void GUIFontDrawIconSize(const struct GUIFont* font, int x, int y, int w, int h, uint32_t color, enum GUIIcon icon) {
148	ctrActivateTexture(&font->icons);
149
150	if (icon >= GUI_ICON_MAX) {
151		return;
152	}
153
154	struct GUIIconMetric metric = defaultIconMetrics[icon];
155	ctrAddRectScaled(color, x, y, w ? w : metric.width, h ? h : metric.height, metric.x, metric.y, metric.width, metric.height);
156}