static void gl_render_msg(gl_t *gl, const char *msg)
{
if (!gl->font)
return;
GLfloat font_vertex[8];
GLfloat font_vertex_dark[8];
GLfloat font_tex_coords[8];
// Deactivate custom shaders. Enable the font texture.
gl_shader_use(0);
set_viewport(gl, gl->win_width, gl->win_height, false, false);
glBindTexture(GL_TEXTURE_2D, gl->font_tex);
glTexCoordPointer(2, GL_FLOAT, 0, font_tex_coords);
// Need blending.
// Using fixed function pipeline here since we cannot guarantee presence of shaders (would be kinda overkill anyways).
glEnable(GL_BLEND);
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)
{
font_renderer_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);
font_renderer_free_output(&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);
glVertexPointer(2, GL_FLOAT, 0, font_vertex_dark);
glColorPointer(4, GL_FLOAT, 0, gl->font_color_dark);
glDrawArrays(GL_QUADS, 0, 4);
glVertexPointer(2, GL_FLOAT, 0, font_vertex);
glColorPointer(4, GL_FLOAT, 0, gl->font_color);
glDrawArrays(GL_QUADS, 0, 4);
// Go back to old rendering path.
glTexCoordPointer(2, GL_FLOAT, 0, gl->tex_coords);
glVertexPointer(2, GL_FLOAT, 0, vertexes_flipped);
glColorPointer(4, GL_FLOAT, 0, white_color);
glBindTexture(GL_TEXTURE_2D, gl->texture[gl->tex_index]);
glDisable(GL_BLEND);
set_projection(gl, true);
}
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);
}
