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RetroArch/menu/disp/glui.c
Jean-André Santoni 82e67e7605 (Lakka) Use theme font + responsive font size
2014-11-07 15:05:59 +01:00

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/* RetroArch - A frontend for libretro.
* Copyright (C) 2011-2014 - Daniel De Matteis
* Copyright (C) 2014 - Jean-André Santoni
*
* 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 <stdlib.h>
#include <stddef.h>
#include <stdio.h>
#include <string.h>
#include <limits.h>
#include "../menu_common.h"
#include "../../general.h"
#include <file/file_path.h>
#include "../../gfx/gl_common.h"
#include "../../gfx/video_thread_wrapper.h"
#include <compat/posix_string.h>
#include "shared.h"
typedef struct glui_handle
{
unsigned line_height;
unsigned glyph_width;
unsigned margin;
unsigned term_width;
unsigned term_height;
char box_message[PATH_MAX];
GLuint bg;
} glui_handle_t;
static void glui_blit_line(float x, float y, const char *message, bool green)
{
gl_t *gl = (gl_t*)driver_video_resolve(NULL);
if (!driver.menu || !gl)
return;
gl_set_viewport(gl, gl->win_width, gl->win_height, false, false);
struct font_params params = {0};
params.x = x / gl->win_width;
params.y = 1.0f - y / gl->win_height;
params.scale = 1.0;
params.color = green ? FONT_COLOR_RGBA(100, 255, 100, 255)
: FONT_COLOR_RGBA(255, 255, 255, 255);
params.full_screen = true;
if (driver.video_data && driver.video_poke
&& driver.video_poke->set_osd_msg)
driver.video_poke->set_osd_msg(driver.video_data,
message, &params, NULL);
}
static void glui_render_background(bool force_transparency)
{
float alpha = 0.75f;
gl_t *gl = NULL;
glui_handle_t *glui = NULL;
if (!driver.menu)
return;
glui = (glui_handle_t*)driver.menu->userdata;
if (!glui)
return;
GLfloat color[] = {
1.0f, 1.0f, 1.0f, alpha,
1.0f, 1.0f, 1.0f, alpha,
1.0f, 1.0f, 1.0f, alpha,
1.0f, 1.0f, 1.0f, alpha,
};
GLfloat black_color[] = {
0.0f, 0.0f, 0.0f, alpha,
0.0f, 0.0f, 0.0f, alpha,
0.0f, 0.0f, 0.0f, alpha,
0.0f, 0.0f, 0.0f, alpha,
};
gl = (gl_t*)driver_video_resolve(NULL);
if (!gl)
return;
glViewport(0, 0, gl->win_width, gl->win_height);
static const GLfloat vertex[] = {
0, 0,
1, 0,
0, 1,
1, 1,
};
static const GLfloat tex_coord[] = {
0, 1,
1, 1,
0, 0,
1, 0,
};
struct gl_coords coords;
coords.vertices = 4;
coords.vertex = vertex;
coords.tex_coord = tex_coord;
coords.lut_tex_coord = tex_coord;
if ((g_settings.menu.pause_libretro
|| !g_extern.main_is_init || g_extern.libretro_dummy)
&& !force_transparency
&& glui->bg)
{
coords.color = color;
glBindTexture(GL_TEXTURE_2D, glui->bg);
}
else
{
coords.color = black_color;
glBindTexture(GL_TEXTURE_2D, 0);
}
gl->shader->use(gl, GL_SHADER_STOCK_BLEND);
gl->shader->set_coords(&coords);
gl->shader->set_mvp(gl, &gl->mvp_no_rot);
glEnable(GL_BLEND);
glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
glDisable(GL_BLEND);
gl->coords.color = gl->white_color_ptr;
}
static void glui_draw_cursor(float x, float y)
{
gl_t *gl = NULL;
glui_handle_t *glui = NULL;
if (!driver.menu)
return;
glui = (glui_handle_t*)driver.menu->userdata;
if (!glui)
return;
GLfloat color[] = {
1.0f, 1.0f, 1.0f, 1.0f,
1.0f, 1.0f, 1.0f, 1.0f,
1.0f, 1.0f, 1.0f, 1.0f,
1.0f, 1.0f, 1.0f, 1.0f,
};
gl = (gl_t*)driver_video_resolve(NULL);
if (!gl)
return;
glViewport(x - 5, gl->win_height - y, 11, 11);
static const GLfloat vertex[] = {
0, 0,
1, 0,
0, 1,
1, 1,
};
static const GLfloat tex_coord[] = {
0, 1,
1, 1,
0, 0,
1, 0,
};
struct gl_coords coords;
coords.vertices = 4;
coords.vertex = vertex;
coords.tex_coord = tex_coord;
coords.lut_tex_coord = tex_coord;
coords.color = color;
glBindTexture(GL_TEXTURE_2D, 0);
gl->shader->use(gl, GL_SHADER_STOCK_BLEND);
gl->shader->set_coords(&coords);
gl->shader->set_mvp(gl, &gl->mvp_no_rot);
glEnable(GL_BLEND);
glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
glDisable(GL_BLEND);
gl->coords.color = gl->white_color_ptr;
}
static void glui_get_message(const char *message)
{
size_t i;
glui_handle_t *glui = NULL;
(void)i;
if (!driver.menu || !message || !*message)
return;
glui = (glui_handle_t*)driver.menu->userdata;
if (!glui)
return;
strlcpy(glui->box_message, message, sizeof(glui->box_message));
}
static void glui_render_messagebox(const char *message)
{
unsigned i;
int x, y;
struct string_list *list = NULL;
glui_handle_t *glui = NULL;
gl_t *gl = (gl_t*)driver_video_resolve(NULL);
if (!driver.menu || !gl)
return;
glui = (glui_handle_t*)driver.menu->userdata;
if (!glui)
return;
list = (struct string_list*)string_split(message, "\n");
if (!list)
return;
if (list->elems == 0)
{
string_list_free(list);
return;
}
x = gl->win_width / 2 - strlen(list->elems[0].data) * glui->glyph_width / 2;
y = gl->win_height / 2 - list->size * glui->line_height / 2;
for (i = 0; i < list->size; i++)
{
const char *msg = list->elems[i].data;
glui_blit_line(x, y + i * glui->line_height, msg, false);
}
string_list_free(list);
}
static void glui_frame(void)
{
unsigned x, y;
size_t i;
char title[PATH_MAX], title_buf[PATH_MAX],
title_msg[PATH_MAX];
const char *dir = NULL;
const char *label = NULL;
unsigned menu_type = 0;
size_t end;
gl_t *gl = (gl_t*)driver_video_resolve(NULL);
glui_handle_t *glui = NULL;
if (!driver.menu || !gl)
return;
glui = (glui_handle_t*)driver.menu->userdata;
if (!glui)
return;
if (driver.menu->need_refresh
&& g_extern.is_menu
&& !driver.menu->msg_force)
return;
glui->line_height = g_settings.video.font_size * 4 / 3;
glui->glyph_width = glui->line_height / 2;
glui->margin = gl->win_width / 20 ;
glui->term_width = (gl->win_width - glui->margin * 2) / glui->glyph_width;
glui->term_height = (gl->win_height - glui->margin * 2) / glui->line_height - 2;
driver.menu->mouse.ptr = (driver.menu->mouse.y - glui->margin) /
glui->line_height - 2 + driver.menu->begin;
glViewport(0, 0, gl->win_width, gl->win_height);
if (driver.menu->mouse.wheeldown && driver.menu->begin
< menu_list_get_size(driver.menu->menu_list) - glui->term_height)
driver.menu->begin++;
if (driver.menu->mouse.wheelup && driver.menu->begin > 0)
driver.menu->begin--;
/* Do not scroll if all items are visible. */
if (menu_list_get_size(driver.menu->menu_list) <= glui->term_height)
driver.menu->begin = 0;
end = (driver.menu->begin + glui->term_height <=
menu_list_get_size(driver.menu->menu_list)) ?
driver.menu->begin + glui->term_height :
menu_list_get_size(driver.menu->menu_list);
glui_render_background(false);
menu_list_get_last_stack(driver.menu->menu_list, &dir, &label, &menu_type);
get_title(label, dir, menu_type, title, sizeof(title));
menu_ticker_line(title_buf, glui->term_width - 3,
g_extern.frame_count / glui->margin, title, true);
glui_blit_line(glui->margin * 2, glui->margin + glui->line_height,
title_buf, true);
const char *core_name = g_extern.menu.info.library_name;
if (!core_name)
core_name = g_extern.system.info.library_name;
if (!core_name)
core_name = "No Core";
const char *core_version = g_extern.menu.info.library_version;
if (!core_version)
core_version = g_extern.system.info.library_version;
if (!core_version)
core_version = "";
snprintf(title_msg, sizeof(title_msg), "%s - %s %s", PACKAGE_VERSION,
core_name, core_version);
glui_blit_line(
glui->margin * 2,
glui->margin + glui->term_height * glui->line_height
+ glui->line_height * 2, title_msg, true);
x = glui->margin;
y = glui->margin + glui->line_height * 2;
for (i = driver.menu->begin; i < end; i++, y += glui->line_height)
{
char message[PATH_MAX], type_str[PATH_MAX],
entry_title_buf[PATH_MAX], type_str_buf[PATH_MAX],
path_buf[PATH_MAX];
const char *path = NULL, *entry_label = NULL;
unsigned type = 0, w = 0;
bool selected = false;
menu_list_get_at_offset(driver.menu->menu_list->selection_buf, i, &path,
&entry_label, &type);
rarch_setting_t *setting = (rarch_setting_t*)setting_data_find_setting(
driver.menu->list_settings,
driver.menu->menu_list->selection_buf->list[i].label);
(void)setting;
disp_set_label(driver.menu->menu_list->selection_buf, &w, type, i, label,
type_str, sizeof(type_str),
entry_label, path,
path_buf, sizeof(path_buf));
selected = (i == driver.menu->selection_ptr);
menu_ticker_line(entry_title_buf, glui->term_width - (w + 1 + 2),
g_extern.frame_count / glui->margin, path_buf, selected);
menu_ticker_line(type_str_buf, w,
g_extern.frame_count / glui->margin, type_str, selected);
strlcpy(message, entry_title_buf, sizeof(message));
glui_blit_line(x, y, message, selected);
glui_blit_line(gl->win_width - glui->glyph_width * w - glui->margin ,
y, type_str_buf, selected);
}
#ifdef GEKKO
const char *message_queue;
if (driver.menu->msg_force)
{
message_queue = msg_queue_pull(g_extern.msg_queue);
driver.menu->msg_force = false;
}
else
message_queue = driver.current_msg;
glui_render_messagebox(message_queue);
#endif
if (driver.menu->keyboard.display)
{
char msg[PATH_MAX];
const char *str = *driver.menu->keyboard.buffer;
if (!str)
str = "";
glui_render_background(true);
snprintf(msg, sizeof(msg), "%s\n%s", driver.menu->keyboard.label, str);
glui_render_messagebox(msg);
}
if (glui->box_message[0] != '\0')
{
glui_render_background(true);
glui_render_messagebox(glui->box_message);
glui->box_message[0] = '\0';
}
if (driver.menu->mouse.enable)
glui_draw_cursor(driver.menu->mouse.x, driver.menu->mouse.y);
gl_set_viewport(gl, gl->win_width, gl->win_height, false, false);
}
static void glui_init_core_info(void *data)
{
(void)data;
core_info_list_free(g_extern.core_info);
g_extern.core_info = NULL;
if (*g_settings.libretro_directory)
{
g_extern.core_info = core_info_list_new(g_settings.libretro_directory);
}
}
static void *glui_init(void)
{
menu_handle_t *menu;
glui_handle_t *glui = NULL;
const video_driver_t *video_driver = NULL;
gl_t *gl = (gl_t*)driver_video_resolve(&video_driver);
if (video_driver != &video_gl || !gl)
{
RARCH_ERR("Cannot initialize GLUI menu driver: gl video driver is not active.\n");
return NULL;
}
menu = (menu_handle_t*)calloc(1, sizeof(*menu));
if (!menu)
return NULL;
menu->userdata = (glui_handle_t*)calloc(1, sizeof(glui_handle_t));
if (!menu->userdata)
{
free(menu);
return NULL;
}
glui = (glui_handle_t*)menu->userdata;
glui->bg = 0;
glui_init_core_info(menu);
return menu;
}
static void glui_free(void *data)
{
menu_handle_t *menu = (menu_handle_t*)data;
if (menu->alloc_font)
free((uint8_t*)menu->font);
if (menu->userdata)
free(menu->userdata);
if (g_extern.core_info)
core_info_list_free(g_extern.core_info);
g_extern.core_info = NULL;
}
static GLuint glui_png_texture_load_(const char * file_name)
{
if (! path_file_exists(file_name))
return 0;
struct texture_image ti = {0};
texture_image_load(&ti, file_name);
/* Generate the OpenGL texture object */
GLuint texture = 0;
glGenTextures(1, &texture);
glBindTexture(GL_TEXTURE_2D, texture);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, ti.width, ti.height, 0,
GL_RGBA, GL_UNSIGNED_BYTE, ti.pixels);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
free(ti.pixels);
return texture;
}
static int glui_png_texture_load_wrap(void *data)
{
const char *filename = (const char*)data;
return glui_png_texture_load_(filename);
}
static GLuint glui_png_texture_load(const char* file_name)
{
if (g_settings.video.threaded
&& !g_extern.system.hw_render_callback.context_type)
{
thread_video_t *thr = (thread_video_t*)driver.video_data;
thr->cmd_data.custom_command.method = glui_png_texture_load_wrap;
thr->cmd_data.custom_command.data = (void*)file_name;
thr->send_cmd_func(thr, CMD_CUSTOM_COMMAND);
thr->wait_reply_func(thr, CMD_CUSTOM_COMMAND);
return thr->cmd_data.custom_command.return_value;
}
return glui_png_texture_load_(file_name);
}
static void glui_context_reset(void *data)
{
char bgpath[PATH_MAX];
glui_handle_t *glui = NULL;
menu_handle_t *menu = (menu_handle_t*)data;
gl_t *gl = (gl_t*)driver_video_resolve(NULL);
(void)gl;
driver.gfx_use_rgba = true;
if (!menu)
return;
glui = (glui_handle_t*)menu->userdata;
if (!glui)
return;
fill_pathname_join(bgpath, g_settings.assets_directory,
"glui", sizeof(bgpath));
fill_pathname_join(bgpath, bgpath, "bg.png", sizeof(bgpath));
if (path_file_exists(bgpath))
glui->bg = glui_png_texture_load(bgpath);
printf("%d\n", glui->bg);
}
static void glui_navigation_clear(void *data, bool pending_push)
{
driver.menu->begin = 0;
}
static void glui_navigation_set(void *data, bool scroll)
{
glui_handle_t *glui = NULL;
menu_handle_t *menu = (menu_handle_t*)data;
if (!menu)
return;
glui = (glui_handle_t*)menu->userdata;
if (!glui)
return;
if (!scroll)
return;
if (driver.menu->selection_ptr < glui->term_height/2)
driver.menu->begin = 0;
else if (driver.menu->selection_ptr >= glui->term_height/2
&& driver.menu->selection_ptr <
menu_list_get_size(driver.menu->menu_list) - glui->term_height/2)
driver.menu->begin = driver.menu->selection_ptr - glui->term_height/2;
else if (driver.menu->selection_ptr >=
menu_list_get_size(driver.menu->menu_list) - glui->term_height/2)
driver.menu->begin = menu_list_get_size(driver.menu->menu_list)
- glui->term_height;
}
menu_ctx_driver_t menu_ctx_glui = {
NULL,
glui_get_message,
NULL,
glui_frame,
glui_init,
NULL,
glui_free,
glui_context_reset,
NULL,
NULL,
NULL,
NULL,
glui_navigation_clear,
NULL,
NULL,
glui_navigation_set,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
glui_init_core_info,
&menu_ctx_backend_common,
"glui",
};
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