3DS: Use system font for menus

CHANGES

@@ -24,6 +24,7 @@ Misc:
  - GBA Audio: Force audio DMAs to not increment destination
  - Qt: Thread startup improvements
  - 3DS: Port to using citro3D
+ - 3DS: Use system font for menus
 
 0.4.1: (2016-07-11)
 Bugfixes:

src/platform/3ds/CMakeLists.txt

@@ -30,7 +30,6 @@ set(OS_DEFINES ${OS_DEFINES} PARENT_SCOPE)
 
 list(APPEND GUI_SRC
 	${CMAKE_CURRENT_BINARY_DIR}/icons.c
-	${CMAKE_CURRENT_BINARY_DIR}/font.c
 	${CMAKE_CURRENT_BINARY_DIR}/uishader_g.c
 	${CMAKE_CURRENT_BINARY_DIR}/uishader_g.h
 	${CMAKE_CURRENT_BINARY_DIR}/uishader_g.shbin.h
@@ -44,7 +43,6 @@ list(APPEND GUI_SRC
 
 set_source_files_properties(
 	${CMAKE_CURRENT_BINARY_DIR}/icons.c
-	${CMAKE_CURRENT_BINARY_DIR}/font.c
 	${CMAKE_CURRENT_BINARY_DIR}/uishader_g.c
 	${CMAKE_CURRENT_BINARY_DIR}/uishader_g.h
 	${CMAKE_CURRENT_BINARY_DIR}/uishader_g.shbin.h
@@ -65,10 +63,6 @@ add_custom_command(OUTPUT ${BINARY_NAME}.bnr
                    COMMAND ${BANNERTOOL} makebanner -i ${CMAKE_CURRENT_SOURCE_DIR}/logo.png -a ${CMAKE_CURRENT_SOURCE_DIR}/bios.wav -o ${BINARY_NAME}.bnr
                    DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/logo.png ${CMAKE_CURRENT_SOURCE_DIR}/bios.wav)
 
-add_custom_command(OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/font.c
-                   COMMAND ${RAW2C} ${CMAKE_SOURCE_DIR}/src/platform/3ds/font.raw
-                   DEPENDS ${CMAKE_SOURCE_DIR}/src/platform/3ds/font.raw)
-
 add_custom_command(OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/icons.c
                    COMMAND ${RAW2C} ${CMAKE_SOURCE_DIR}/src/platform/3ds/icons.raw
                    DEPENDS ${CMAKE_SOURCE_DIR}/src/platform/3ds/icons.raw)

src/platform/3ds/ctr-gpu.c

@@ -27,11 +27,12 @@ struct ctrUIVertex {
 	u32 abgr;
 };
 
-#define MAX_NUM_QUADS 1024
+#define MAX_NUM_QUADS 2048
 #define VERTEX_BUFFER_SIZE MAX_NUM_QUADS * sizeof(struct ctrUIVertex)
 
 static struct ctrUIVertex* ctrVertexBuffer = NULL;
-static u16 ctrNumQuads = 0;
+static int ctrNumVerts = 0;
+static int ctrVertStart = 0;
 
 static C3D_Tex* activeTexture = NULL;
 
@@ -70,12 +71,6 @@ bool ctrInitGpu() {
 		return false;
 	}
 
-	// Set up TexEnv and other parameters
-	C3D_TexEnv* env = C3D_GetTexEnv(0);
-	C3D_TexEnvSrc(env, C3D_Both, GPU_TEXTURE0, GPU_PRIMARY_COLOR, 0);
-	C3D_TexEnvOp(env, C3D_Both, 0, 0, 0);
-	C3D_TexEnvFunc(env, C3D_Both, GPU_MODULATE);
-
 	C3D_CullFace(GPU_CULL_NONE);
 	C3D_DepthTest(false, GPU_ALWAYS, GPU_WRITE_ALL);
 	C3D_AlphaBlend(GPU_BLEND_ADD, GPU_BLEND_ADD, GPU_SRC_ALPHA, GPU_ONE_MINUS_SRC_ALPHA, GPU_SRC_ALPHA, GPU_ONE_MINUS_SRC_ALPHA);
@@ -88,10 +83,6 @@ bool ctrInitGpu() {
 	AttrInfo_AddLoader(attrInfo, 1, GPU_SHORT, 4); // in_tc0
 	AttrInfo_AddLoader(attrInfo, 2, GPU_UNSIGNED_BYTE, 4); // in_col
 
-	C3D_BufInfo* bufInfo = C3D_GetBufInfo();
-	BufInfo_Init(bufInfo);
-	BufInfo_Add(bufInfo, ctrVertexBuffer, sizeof(struct ctrUIVertex), 3, 0x210);
-
 	return true;
 }
 
@@ -129,9 +120,20 @@ void ctrActivateTexture(C3D_Tex* texture) {
 		ctrFlushBatch();
 	}
 
-	C3D_TexBind(0, texture);
 	activeTexture = texture;
 
+	C3D_TexEnv* env = C3D_GetTexEnv(0);
+	C3D_TexEnvOp(env, C3D_Both, 0, 0, 0);
+	if (texture->fmt < GPU_LA8) {
+		C3D_TexEnvSrc(env, C3D_Both, GPU_TEXTURE0, GPU_PRIMARY_COLOR, 0);
+		C3D_TexEnvFunc(env, C3D_Both, GPU_MODULATE);
+	} else {
+		C3D_TexEnvSrc(env, C3D_RGB, GPU_PRIMARY_COLOR, 0, 0);
+		C3D_TexEnvSrc(env, C3D_Alpha, GPU_TEXTURE0, GPU_PRIMARY_COLOR, 0);
+		C3D_TexEnvFunc(env, C3D_RGB, GPU_REPLACE);
+		C3D_TexEnvFunc(env, C3D_Alpha, GPU_MODULATE);
+	}
+
 	C3D_Mtx textureMtx = {
 		.m = {
 			// Rows are in the order w z y x, because ctrulib
@@ -143,11 +145,14 @@ void ctrActivateTexture(C3D_Tex* texture) {
 }
 
 void ctrAddRectScaled(u32 color, s16 x, s16 y, s16 w, s16 h, s16 u, s16 v, s16 uw, s16 vh) {
-	if (ctrNumQuads == MAX_NUM_QUADS) {
+	if (ctrNumVerts + ctrVertStart == MAX_NUM_QUADS) {
 		ctrFlushBatch();
+		C3D_Flush();
+		ctrNumVerts = 0;
+		ctrVertStart = 0;
 	}
 
-	struct ctrUIVertex* vtx = &ctrVertexBuffer[ctrNumQuads];
+	struct ctrUIVertex* vtx = &ctrVertexBuffer[ctrVertStart + ctrNumVerts];
 	vtx->x = x;
 	vtx->y = y;
 	vtx->w = w;
@@ -158,7 +163,7 @@ void ctrAddRectScaled(u32 color, s16 x, s16 y, s16 w, s16 h, s16 u, s16 v, s16 u
 	vtx->vh = vh;
 	vtx->abgr = color;
 
-	++ctrNumQuads;
+	++ctrNumVerts;
 }
 
 void ctrAddRect(u32 color, s16 x, s16 y, s16 u, s16 v, s16 w, s16 h) {
@@ -166,13 +171,19 @@ void ctrAddRect(u32 color, s16 x, s16 y, s16 u, s16 v, s16 w, s16 h) {
 }
 
 void ctrFlushBatch(void) {
-	if (ctrNumQuads == 0) {
+	if (ctrNumVerts == 0) {
 		return;
 	}
 
-	GSPGPU_FlushDataCache(ctrVertexBuffer, VERTEX_BUFFER_SIZE);
+	C3D_TexBind(0, activeTexture);
-	C3D_DrawArrays(GPU_GEOMETRY_PRIM, 0, ctrNumQuads);
-	C3D_Flush();
 
-	ctrNumQuads = 0;
+	C3D_BufInfo* bufInfo = C3D_GetBufInfo();
+	BufInfo_Init(bufInfo);
+	BufInfo_Add(bufInfo, &ctrVertexBuffer[ctrVertStart], sizeof(struct ctrUIVertex), 3, 0x210);
+
+	GSPGPU_FlushDataCache(ctrVertexBuffer, VERTEX_BUFFER_SIZE);
+	C3D_DrawArrays(GPU_GEOMETRY_PRIM, 0, ctrNumVerts);
+
+	ctrVertStart += ctrNumVerts;
+	ctrNumVerts = 0;
 }

src/platform/3ds/gui-font.c

@@ -8,36 +8,43 @@
 #include "util/png-io.h"
 #include "util/vfs.h"
 #include "icons.h"
-#include "font.h"
 
 #include "ctr-gpu.h"
 
 #define CELL_HEIGHT 16
 #define CELL_WIDTH 16
-#define GLYPH_HEIGHT 12
+#define FONT_SIZE 0.52f
 
 struct GUIFont {
-	C3D_Tex texture;
+	C3D_Tex* sheets;
 	C3D_Tex icons;
 };
 
 struct GUIFont* GUIFontCreate(void) {
+	fontEnsureMapped();
 	struct GUIFont* guiFont = malloc(sizeof(struct GUIFont));
 	if (!guiFont) {
 		return 0;
 	}
+	C3D_Tex* tex;
 
-	C3D_Tex* tex = &guiFont->texture;
+	TGLP_s* glyphInfo = fontGetGlyphInfo();
-	C3D_TexInitVRAM(tex, 256, 128, GPU_RGBA5551);
+	guiFont->sheets = malloc(sizeof(*guiFont->sheets) * glyphInfo->nSheets);
 
-	GSPGPU_FlushDataCache(font, font_size);
+	int i;
-	GX_RequestDma((u32*) font, tex->data, font_size);
+	for (i = 0; i < glyphInfo->nSheets; ++i) {
-	gspWaitForDMA();
+		tex = &guiFont->sheets[i];
+		tex->data = fontGetGlyphSheetTex(i);
+		tex->fmt = glyphInfo->sheetFmt;
+		tex->size = glyphInfo->sheetSize;
+		tex->width = glyphInfo->sheetWidth;
+		tex->height = glyphInfo->sheetHeight;
+		tex->param = GPU_TEXTURE_MAG_FILTER(GPU_LINEAR) | GPU_TEXTURE_MIN_FILTER(GPU_LINEAR) | GPU_TEXTURE_WRAP_S(GPU_CLAMP_TO_EDGE) | GPU_TEXTURE_WRAP_T(GPU_CLAMP_TO_EDGE);
+	}
 
 	tex = &guiFont->icons;
 	C3D_TexInitVRAM(tex, 256, 64, GPU_RGBA5551);
 
-
 	GSPGPU_FlushDataCache(icons, icons_size);
 	GX_RequestDma((u32*) icons, tex->data, icons_size);
 	gspWaitForDMA();
@@ -46,22 +53,24 @@ struct GUIFont* GUIFontCreate(void) {
 }
 
 void GUIFontDestroy(struct GUIFont* font) {
-	C3D_TexDelete(&font->texture);
+	free(font->sheets);
 	C3D_TexDelete(&font->icons);
 	free(font);
 }
 
 unsigned GUIFontHeight(const struct GUIFont* font) {
 	UNUSED(font);
-	return GLYPH_HEIGHT;
+	return fontGetInfo()->lineFeed * FONT_SIZE;
 }
 
 unsigned GUIFontGlyphWidth(const struct GUIFont* font, uint32_t glyph) {
 	UNUSED(font);
-	if (glyph > 0x7F) {
+	int index = fontGlyphIndexFromCodePoint(glyph);
-		glyph = 0;
+	charWidthInfo_s* info = fontGetCharWidthInfo(index);
+	if (info) {
+		return info->charWidth * FONT_SIZE;
 	}
-	return defaultFontMetrics[glyph].width;
+	return 0;
 }
 
 void GUIFontIconMetrics(const struct GUIFont* font, enum GUIIcon icon, unsigned* w, unsigned* h) {
@@ -84,19 +93,21 @@ void GUIFontIconMetrics(const struct GUIFont* font, enum GUIIcon icon, unsigned*
 }
 
 void GUIFontDrawGlyph(const struct GUIFont* font, int glyph_x, int glyph_y, uint32_t color, uint32_t glyph) {
-	ctrActivateTexture(&font->texture);
+	int index = fontGlyphIndexFromCodePoint(glyph);
+	fontGlyphPos_s data;
+	fontCalcGlyphPos(&data, index, GLYPH_POS_CALC_VTXCOORD, 1.0, 1.0);
 
-	if (glyph > 0x7F) {
+	C3D_Tex* tex = &font->sheets[data.sheetIndex];
-		glyph = '?';
+	ctrActivateTexture(tex);
-	}
 
-	struct GUIFontGlyphMetric metric = defaultFontMetrics[glyph];
+	float width = data.texcoord.right - data.texcoord.left;
-	u16 x = glyph_x - metric.padding.left;
+	float height = data.texcoord.top - data.texcoord.bottom;
-	u16 y = glyph_y - GLYPH_HEIGHT;
+	u16 x = glyph_x;
-	u16 u = (glyph % 16u) * CELL_WIDTH;
+	u16 y = glyph_y + tex->height * height / 8;
-	u16 v = (glyph / 16u) * CELL_HEIGHT;
+	u16 u = tex->width * data.texcoord.left;
+	u16 v = tex->height * data.texcoord.bottom;
 
-	ctrAddRect(color, x, y, u, v, CELL_WIDTH, CELL_HEIGHT);
+	ctrAddRectScaled(color, x, y, tex->width * width * FONT_SIZE, tex->height * height * -FONT_SIZE, u, v, tex->width * width, tex->height * height);
 }
 
 void GUIFontDrawIcon(const struct GUIFont* font, int x, int y, enum GUIAlignment align, enum GUIOrientation orient, uint32_t color, enum GUIIcon icon) {

src/platform/3ds/main.c

@@ -178,6 +178,8 @@ static void _drawStart(void) {
 }
 
 static void _drawEnd(void) {
+	ctrFlushBatch();
+	C3D_Flush();
 	C3D_RenderBufTransfer(&topScreen, (u32*) gfxGetFramebuffer(GFX_TOP, GFX_LEFT, NULL, NULL), GX_TRANSFER_IN_FORMAT(GX_TRANSFER_FMT_RGB8) | GX_TRANSFER_OUT_FORMAT(GX_TRANSFER_FMT_RGB8));
 	C3D_RenderBufTransfer(&bottomScreen, (u32*) gfxGetFramebuffer(GFX_BOTTOM, GFX_LEFT, NULL, NULL), GX_TRANSFER_IN_FORMAT(GX_TRANSFER_FMT_RGB8) | GX_TRANSFER_OUT_FORMAT(GX_TRANSFER_FMT_RGB8));
 	gfxSwapBuffersGpu();