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RetroArch/gfx/drivers_font/wiiu_font.c

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/* RetroArch - A frontend for libretro.
* Copyright (C) 2010-2014 - Hans-Kristian Arntzen
* Copyright (C) 2011-2017 - Daniel De Matteis
*
* RetroArch is free software: you can redistribute it and/or modify it under the terms
* of the GNU General Public License as published by the Free Software Found-
* ation, either version 3 of the License, or (at your option) any later version.
*
* RetroArch is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
* PURPOSE. See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along with RetroArch.
* If not, see <http://www.gnu.org/licenses/>.
*/
#include <stdio.h>
#include <string.h>
#include <malloc.h>
#include <math.h>
#include <encodings/utf.h>
#include <wiiu/gx2.h>
#include "gfx/font_driver.h"
#include "gfx/video_driver.h"
#include "gfx/common/gx2_common.h"
#include "system/memory.h"
#include "wiiu/wiiu_dbg.h"
#include "verbosity.h"
typedef struct
{
GX2Texture texture;
const font_renderer_driver_t* font_driver;
void* font_data;
struct font_atlas* atlas;
} wiiu_font_t;
static void* wiiu_font_init_font(void* data, const char* font_path,
float font_size, bool is_threaded)
{
int i;
wiiu_font_t* font = (wiiu_font_t*)calloc(1, sizeof(*font));
if (!font)
return NULL;
if (!font_renderer_create_default((const void**)&font->font_driver,
&font->font_data, font_path, font_size))
{
RARCH_WARN("Couldn't initialize font renderer.\n");
free(font);
return NULL;
}
font->atlas = font->font_driver->get_atlas(font->font_data);
font->texture.surface.width = font->atlas->width;
font->texture.surface.height = font->atlas->height;
font->texture.surface.depth = 1;
font->texture.surface.dim = GX2_SURFACE_DIM_TEXTURE_2D;
font->texture.surface.tileMode = GX2_TILE_MODE_LINEAR_ALIGNED;
font->texture.viewNumSlices = 1;
font->texture.surface.format = GX2_SURFACE_FORMAT_UNORM_R8;
font->texture.compMap = GX2_COMP_SEL(_R, _R, _R, _R);
GX2CalcSurfaceSizeAndAlignment(&font->texture.surface);
GX2InitTextureRegs(&font->texture);
font->texture.surface.image = MEM1_alloc(font->texture.surface.imageSize,
font->texture.surface.alignment);
for (i = 0; (i < font->atlas->height) && (i < font->texture.surface.height); i++)
memcpy((uint8_t*)font->texture.surface.image + (i * font->texture.surface.pitch),
font->atlas->buffer + (i * font->atlas->width), font->atlas->width);
GX2Invalidate(GX2_INVALIDATE_MODE_CPU_TEXTURE, font->texture.surface.image,
font->texture.surface.imageSize);
font->atlas->dirty = false;
return font;
}
static void wiiu_font_free_font(void* data, bool is_threaded)
{
wiiu_font_t* font = (wiiu_font_t*)data;
if (!font)
return;
if (font->font_driver && font->font_data)
font->font_driver->free(font->font_data);
MEM1_free(font->texture.surface.image);
free(font);
}
static int wiiu_font_get_message_width(void* data, const char* msg,
unsigned msg_len, float scale)
{
wiiu_font_t* font = (wiiu_font_t*)data;
unsigned i;
int delta_x = 0;
if (!font)
return 0;
for (i = 0; i < msg_len; i++)
{
const char* msg_tmp = &msg[i];
unsigned code = utf8_walk(&msg_tmp);
unsigned skip = msg_tmp - &msg[i];
if (skip > 1)
i += skip - 1;
const struct font_glyph* glyph =
font->font_driver->get_glyph(font->font_data, code);
if (!glyph) /* Do something smarter here ... */
glyph = font->font_driver->get_glyph(font->font_data, '?');
if (!glyph)
continue;
delta_x += glyph->advance_x;
}
return delta_x * scale;
}
static void wiiu_font_render_line(
video_frame_info_t *video_info,
wiiu_font_t* font, const char* msg, unsigned msg_len,
float scale, const unsigned int color, float pos_x,
float pos_y, unsigned text_align)
{
unsigned i;
wiiu_video_t* wiiu = (wiiu_video_t*)video_driver_get_ptr(false);
unsigned width = video_info->width;
unsigned height = video_info->height;
int x = roundf(pos_x * width);
int y = roundf((1.0f - pos_y) * height);
int delta_x = 0;
int delta_y = 0;
if(wiiu->vertex_cache.current + (msg_len * 4) > wiiu->vertex_cache.size)
return;
switch (text_align)
{
case TEXT_ALIGN_RIGHT:
x -= wiiu_font_get_message_width(font, msg, msg_len, scale);
break;
case TEXT_ALIGN_CENTER:
x -= wiiu_font_get_message_width(font, msg, msg_len, scale) / 2;
break;
}
position_t* pos = wiiu->vertex_cache.positions + wiiu->vertex_cache.current;
tex_coord_t* coord = wiiu->vertex_cache.tex_coords + wiiu->vertex_cache.current;
for (i = 0; i < msg_len; i++)
{
int off_x, off_y, tex_x, tex_y, width, height;
const char* msg_tmp = &msg[i];
unsigned code = utf8_walk(&msg_tmp);
unsigned skip = msg_tmp - &msg[i];
if (skip > 1)
i += skip - 1;
const struct font_glyph* glyph =
font->font_driver->get_glyph(font->font_data, code);
if (!glyph) /* Do something smarter here ... */
glyph = font->font_driver->get_glyph(font->font_data, '?');
if (!glyph)
continue;
off_x = glyph->draw_offset_x;
off_y = glyph->draw_offset_y;
tex_x = glyph->atlas_offset_x;
tex_y = glyph->atlas_offset_y;
width = glyph->width;
height = glyph->height;
float x0 = x + off_x + delta_x * scale;
float y0 = y + off_y + delta_y * scale + height * scale;
float u0 = tex_x;
float v0 = tex_y;
float x1 = x0 + width * scale;
float y1 = y0 - height * scale;
float u1 = u0 + width;
float v1 = v0 + height;
pos[0].x = (2.0f * x0 / wiiu->color_buffer.surface.width) - 1.0f;
pos[0].y = (-2.0f * y0 / wiiu->color_buffer.surface.height) + 1.0f;
pos[1].x = (2.0f * x1 / wiiu->color_buffer.surface.width) - 1.0f;;
pos[1].y = (-2.0f * y0 / wiiu->color_buffer.surface.height) + 1.0f;
pos[2].x = (2.0f * x1 / wiiu->color_buffer.surface.width) - 1.0f;;
pos[2].y = (-2.0f * y1 / wiiu->color_buffer.surface.height) + 1.0f;
pos[3].x = (2.0f * x0 / wiiu->color_buffer.surface.width) - 1.0f;;
pos[3].y = (-2.0f * y1 / wiiu->color_buffer.surface.height) + 1.0f;
pos += 4;
coord[0].u = u0 / font->texture.surface.width;
coord[0].v = v1 / font->texture.surface.height;
coord[1].u = u1 / font->texture.surface.width;
coord[1].v = v1 / font->texture.surface.height;
coord[2].u = u1 / font->texture.surface.width;
coord[2].v = v0 / font->texture.surface.height;
coord[3].u = u0 / font->texture.surface.width;
coord[3].v = v0 / font->texture.surface.height;
coord += 4;
delta_x += glyph->advance_x;
delta_y += glyph->advance_y;
}
int count = pos - wiiu->vertex_cache.positions - wiiu->vertex_cache.current;
if (!count)
return;
GX2Invalidate(GX2_INVALIDATE_MODE_CPU_ATTRIBUTE_BUFFER, wiiu->vertex_cache.positions + wiiu->vertex_cache.current, count * sizeof(position_t));
GX2Invalidate(GX2_INVALIDATE_MODE_CPU_ATTRIBUTE_BUFFER, wiiu->vertex_cache.tex_coords + wiiu->vertex_cache.current, count * sizeof(tex_coord_t));
if(font->atlas->dirty)
{
for (i = 0; (i < font->atlas->height) && (i < font->texture.surface.height); i++)
memcpy(font->texture.surface.image + (i * font->texture.surface.pitch),
font->atlas->buffer + (i * font->atlas->width), font->atlas->width);
GX2Invalidate(GX2_INVALIDATE_MODE_CPU_TEXTURE, font->texture.surface.image,
font->texture.surface.imageSize);
font->atlas->dirty = false;
}
#if 0
printf("%s\n", msg);
DEBUG_VAR(color);
#endif
GX2SetPixelTexture(&font->texture, wiiu->shader->sampler.location);
GX2SetBlendConstantColor(((color >> 0) & 0xFF) / 255.0f, ((color >> 8) & 0xFF) / 255.0f,
((color >> 16) & 0xFF) / 255.0f, ((color >> 24) & 0xFF) / 255.0f);
GX2SetBlendControl(GX2_RENDER_TARGET_0, GX2_BLEND_MODE_BLEND_FACTOR, GX2_BLEND_MODE_INV_SRC_ALPHA, GX2_BLEND_COMBINE_MODE_ADD,
GX2_ENABLE, GX2_BLEND_MODE_SRC_ALPHA, GX2_BLEND_MODE_INV_SRC_ALPHA, GX2_BLEND_COMBINE_MODE_ADD);
GX2DrawEx(GX2_PRIMITIVE_MODE_QUADS, count, wiiu->vertex_cache.current, 1);
GX2SetBlendControl(GX2_RENDER_TARGET_0, GX2_BLEND_MODE_SRC_ALPHA, GX2_BLEND_MODE_INV_SRC_ALPHA, GX2_BLEND_COMBINE_MODE_ADD,
GX2_ENABLE, GX2_BLEND_MODE_SRC_ALPHA, GX2_BLEND_MODE_INV_SRC_ALPHA, GX2_BLEND_COMBINE_MODE_ADD);
wiiu->vertex_cache.current = pos - wiiu->vertex_cache.positions;
}
static void wiiu_font_render_message(
video_frame_info_t *video_info,
wiiu_font_t* font, const char* msg, float scale,
const unsigned int color, float pos_x, float pos_y,
unsigned text_align)
{
int lines = 0;
float line_height;
if (!msg || !*msg)
return;
/* If the font height is not supported just draw as usual */
if (!font->font_driver->get_line_height)
{
wiiu_font_render_line(video_info, font, msg, strlen(msg),
scale, color, pos_x, pos_y, text_align);
return;
}
line_height = scale / font->font_driver->get_line_height(font->font_data);
for (;;)
{
const char* delim = strchr(msg, '\n');
/* Draw the line */
if (delim)
{
unsigned msg_len = delim - msg;
wiiu_font_render_line(video_info, font, msg, msg_len,
scale, color, pos_x, pos_y - (float)lines * line_height,
text_align);
msg += msg_len + 1;
lines++;
}
else
{
unsigned msg_len = strlen(msg);
wiiu_font_render_line(video_info, font, msg, msg_len,
scale, color, pos_x, pos_y - (float)lines * line_height,
text_align);
break;
}
}
}
static void wiiu_font_render_msg(
video_frame_info_t *video_info,
void* data, const char* msg,
const void* userdata)
{
float x, y, scale, drop_mod, drop_alpha;
int drop_x, drop_y;
unsigned max_glyphs;
enum text_alignment text_align;
unsigned color, color_dark, r, g, b, alpha, r_dark, g_dark, b_dark, alpha_dark;
wiiu_font_t * font = (wiiu_font_t*)data;
const struct font_params* params = (const struct font_params*)userdata;
unsigned width = video_info->width;
unsigned height = video_info->height;
if (!font || !msg || !*msg)
return;
if (params)
{
x = params->x;
y = params->y;
scale = params->scale;
text_align = params->text_align;
drop_x = params->drop_x;
drop_y = params->drop_y;
drop_mod = params->drop_mod;
drop_alpha = params->drop_alpha;
r = FONT_COLOR_GET_RED(params->color);
g = FONT_COLOR_GET_GREEN(params->color);
b = FONT_COLOR_GET_BLUE(params->color);
alpha = FONT_COLOR_GET_ALPHA(params->color);
color = params->color;
}
else
{
x = video_info->font_msg_pos_x;
y = video_info->font_msg_pos_y;
scale = 1.0f;
text_align = TEXT_ALIGN_LEFT;
r = (video_info->font_msg_color_r * 255);
g = (video_info->font_msg_color_g * 255);
b = (video_info->font_msg_color_b * 255);
alpha = 255;
color = COLOR_ABGR(r, g, b, alpha);
drop_x = -2;
drop_y = -2;
drop_mod = 0.3f;
drop_alpha = 1.0f;
}
max_glyphs = strlen(msg);
if (drop_x || drop_y)
max_glyphs *= 2;
if (drop_x || drop_y)
{
r_dark = r * drop_mod;
g_dark = g * drop_mod;
b_dark = b * drop_mod;
alpha_dark = alpha * drop_alpha;
color_dark = COLOR_ABGR(r_dark, g_dark, b_dark, alpha_dark);
wiiu_font_render_message(video_info, font, msg, scale, color_dark,
x + scale * drop_x / width, y +
scale * drop_y / height, text_align);
}
wiiu_font_render_message(video_info, font, msg, scale,
color, x, y, text_align);
}
static const struct font_glyph* wiiu_font_get_glyph(
void* data, uint32_t code)
{
wiiu_font_t* font = (wiiu_font_t*)data;
if (!font || !font->font_driver)
return NULL;
if (!font->font_driver->ident)
return NULL;
return font->font_driver->get_glyph((void*)font->font_driver, code);
}
static void wiiu_font_flush_block(unsigned width, unsigned height, void* data)
{
(void)data;
}
static void wiiu_font_bind_block(void* data, void* userdata)
{
(void)data;
}
font_renderer_t wiiu_font =
{
wiiu_font_init_font,
wiiu_font_free_font,
wiiu_font_render_msg,
"wiiufont",
wiiu_font_get_glyph,
wiiu_font_bind_block,
wiiu_font_flush_block,
wiiu_font_get_message_width,
};
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