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Merge pull request #1010 from lakkatv/lakka

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(GLUI) Display a background image if found
This commit is contained in:
Twinaphex 2014-09-14 13:51:37 +02:00
commit da977ed676
1 changed files with 54 additions and 8 deletions
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62
frontend/menu/disp/glui.c
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@ -39,6 +39,7 @@
#include "shared.h"
int line_height, glyph_width, glui_margin, glui_term_width, glui_term_height;
GLuint glui_bg = 0;
static void glui_blit_line(float x, float y, const char *message, bool green)
{
@ -66,30 +67,46 @@ static void glui_blit_line(float x, float y, const char *message, bool green)
static void glui_render_background(void)
{
GLfloat color[] = {
GLfloat black_color[] = {
0.0f, 0.0f, 0.0f, 0.8f,
0.0f, 0.0f, 0.0f, 0.8f,
0.0f, 0.0f, 0.0f, 0.8f,
0.0f, 0.0f, 0.0f, 0.8f,
};
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,
};
gl_t *gl = (gl_t*)driver_video_resolve(NULL);
if (!gl)
return;
gl_set_viewport(gl, gl->win_width, gl->win_height, false, false);
glBindTexture(GL_TEXTURE_2D, 0);
glViewport(0, 0, gl->win_width, gl->win_height);
glEnable(GL_BLEND);
gl->coords.vertex = gl->vertex_ptr;
gl->coords.tex_coord = (GLfloat*)calloc(4, sizeof(GLfloat));
gl->coords.color = color;
gl->coords.vertex = vertex;
gl->coords.tex_coord = tex_coord;
gl->coords.color = glui_bg ? gl->white_color_ptr : black_color;
glBindTexture(GL_TEXTURE_2D, glui_bg);
if (gl->shader && gl->shader->use)
gl->shader->use(gl, GL_SHADER_STOCK_BLEND);
gl->coords.vertices = 4;
gl_shader_set_coords(gl, &gl->coords, &gl->mvp);
gl_shader_set_coords(gl, &gl->coords, &gl->mvp_no_rot);
glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
glDisable(GL_BLEND);
@ -310,6 +327,25 @@ static int glui_input_postprocess(uint64_t old_state)
return 0;
}
static GLuint png_texture_load(const char * file_name)
{
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 void glui_context_reset(void *data)
{
menu_handle_t *menu = (menu_handle_t*)data;
@ -319,6 +355,16 @@ static void glui_context_reset(void *data)
if (!menu)
return;
char bgpath[PATH_MAX];
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 = png_texture_load(bgpath);
}
menu_ctx_driver_t menu_ctx_glui = {