static void gl_set_rotation(void *data, unsigned rotation)
{
struct gl_ortho ortho = {0, 1, 0, 1, -1, 1};
gl_t *gl = (gl_t*)driver.video_data;
gl->rotation = 90 * rotation;
gl_set_projection(gl, &ortho, true);
}
void gl_set_viewport(gl_t *gl, unsigned width, unsigned height, bool force_full, bool allow_rotate)
{
unsigned x = 0, y = 0;
struct gl_ortho ortho = {0, 1, 0, 1, -1, 1};
if (gl->keep_aspect && !force_full)
{
float desired_aspect = g_settings.video.aspect_ratio;
float device_aspect = (float)width / height;
float delta;
#ifdef RARCH_CONSOLE
if (g_console.aspect_ratio_index == ASPECT_RATIO_CUSTOM)
{
x = g_console.viewports.custom_vp.x;
y = g_console.viewports.custom_vp.y;
width = g_console.viewports.custom_vp.width;
height = g_console.viewports.custom_vp.height;
}
else
#endif
{
if (fabs(device_aspect - desired_aspect) < 0.0001)
{
// If the aspect ratios of screen and desired aspect ratio are sufficiently equal (floating point stuff),
// assume they are actually equal.
}
else if (device_aspect > desired_aspect)
{
delta = (desired_aspect / device_aspect - 1.0) / 2.0 + 0.5;
x = (unsigned)(width * (0.5 - delta));
width = (unsigned)(2.0 * width * delta);
}
else
{
delta = (device_aspect / desired_aspect - 1.0) / 2.0 + 0.5;
y = (unsigned)(height * (0.5 - delta));
height = (unsigned)(2.0 * height * delta);
}
}
}
glViewport(x, y, width, height);
gl_set_projection(gl, &ortho, allow_rotate);
gl->vp_width = width;
gl->vp_height = height;
// Set last backbuffer viewport.
if (!force_full)
{
gl->vp_out_width = width;
gl->vp_out_height = height;
}
//RARCH_LOG("Setting viewport @ %ux%u\n", width, height);
}
static void setup_font(void *data, const char *msg, GLfloat scale, GLfloat pos_x, GLfloat pos_y)
{
gl_t *gl = (gl_t*)data;
if (!gl->font)
return;
gl_shader_use(gl, 0);
gl_set_viewport(gl, gl->win_width, gl->win_height, false, false);
glEnable(GL_BLEND);
GLfloat font_vertex[8];
GLfloat font_vertex_dark[8];
GLfloat font_tex_coords[8];
glBindTexture(GL_TEXTURE_2D, gl->font_tex);
gl->coords.tex_coord = font_tex_coords;
struct font_output_list out;
// If we get the same message, there's obviously no need to render fonts again ...
if (strcmp(gl->font_last_msg, msg) != 0)
{
gl->font_driver->render_msg(gl->font, msg, &out);
struct font_output *head = out.head;
struct font_rect geom;
calculate_msg_geometry(head, &geom);
adjust_power_of_two(gl, &geom);
blit_fonts(gl, head, &geom);
gl->font_driver->free_output(gl->font, &out);
strlcpy(gl->font_last_msg, msg, sizeof(gl->font_last_msg));
gl->font_last_width = geom.width;
gl->font_last_height = geom.height;
}
calculate_font_coords(gl, font_vertex, font_vertex_dark, font_tex_coords,
scale, pos_x, pos_y);
gl->coords.vertex = font_vertex_dark;
gl->coords.color = gl->font_color_dark;
gl_shader_set_coords(gl, &gl->coords, &gl->mvp);
glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
gl->coords.vertex = font_vertex;
gl->coords.color = gl->font_color;
gl_shader_set_coords(gl, &gl->coords, &gl->mvp);
glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
// Post - Go back to old rendering path.
gl->coords.vertex = vertexes_flipped;
gl->coords.tex_coord = gl->tex_coords;
gl->coords.color = white_color;
glBindTexture(GL_TEXTURE_2D, gl->texture[gl->tex_index]);
glDisable(GL_BLEND);
struct gl_ortho ortho = {0, 1, 0, 1, -1, 1};
gl_set_projection(gl, &ortho, true);
}
static void lakka_draw_text(struct font_output_list *out, float x, float y, float scale, float alpha)
{
int i;
struct font_output *head;
struct font_rect geom;
struct gl_ortho ortho = {0, 1, 0, 1, -1, 1};
gl_t *gl = (gl_t*)driver.video_data;
if (alpha > global_alpha)
alpha = global_alpha;
if (!font || !gl || !out)
return;
for (i = 0; i < 4; i++)
{
font_color[4 * i + 0] = 1.0;
font_color[4 * i + 1] = 1.0;
font_color[4 * i + 2] = 1.0;
font_color[4 * i + 3] = alpha;
}
if (gl->shader && gl->shader->use)
gl->shader->use(gl, GL_SHADER_STOCK_BLEND);
gl_set_viewport(gl, gl->win_width, gl->win_height, true, false);
glEnable(GL_BLEND);
GLfloat font_vertex[8];
GLfloat font_vertex_dark[8];
GLfloat font_tex_coords[8];
glBindTexture(GL_TEXTURE_2D, font_tex);
gl->coords.tex_coord = font_tex_coords;
head = (struct font_output*)out->head;
calculate_msg_geometry(head, &geom);
adjust_power_of_two(gl, &geom);
blit_fonts(gl, head, &geom);
font_last_width = geom.width;
font_last_height = geom.height;
calculate_font_coords(gl, font_vertex, font_vertex_dark, font_tex_coords,
scale, x / gl->win_width, (gl->win_height - y) / gl->win_height);
gl->coords.vertex = font_vertex;
gl->coords.color = font_color;
gl_shader_set_coords(gl, &gl->coords, &gl->mvp);
glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
// Post - Go back to old rendering path.
gl->coords.vertex = gl->vertex_ptr;
gl->coords.tex_coord = gl->tex_coords;
gl->coords.color = gl->white_color_ptr;
glBindTexture(GL_TEXTURE_2D, textures[TEXTURE_MAIN].id);
glDisable(GL_BLEND);
gl_set_projection(gl, &ortho, true);
}
