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Scale the GUI to fit the screen

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With this patch set, if needed, we scale the images during early
boot. TTF support is needed to properly scale the font. No font
scaling is done on the old style fixed width font used in the
console.

Special thanks to _that for figuring out the scaling and blending
function calls to make this possible.

Change-Id: If2f79bef16d6db2e1298bfc3d00c9bcca2bee37a
This commit is contained in:
Ethan Yonker
2015-02-06 15:44:39 -06:00
parent 1b6199f8ed
commit 63e414fc8a
34 changed files with 399 additions and 150 deletions
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gui/gui.cpp
+61 -3
View File
@@ -75,6 +75,8 @@ static TWAtomicInt gForceRender;
const int gNoAnimation = 1;
blanktimer blankTimer;
int ors_read_fd = -1;
static float scale_theme_w = 1;
static float scale_theme_h = 1;
// Needed by pages.cpp too
int gGuiRunning = 0;
@@ -767,13 +769,26 @@ extern "C" int gui_init(void)
{
gr_init();
std::string curtain_path = TWRES "images/curtain.jpg";
gr_surface source_Surface = NULL;
if (res_create_surface(curtain_path.c_str(), &gCurtain))
if (res_create_surface(curtain_path.c_str(), &source_Surface))
{
printf
("Unable to locate '%s'\nDid you set a DEVICE_RESOLUTION in your config files?\n", curtain_path.c_str());
printf("Unable to locate '%s'\nDid you set a DEVICE_RESOLUTION in your config files?\n", curtain_path.c_str());
return -1;
}
if (gr_get_width(source_Surface) != gr_fb_width() || gr_get_height(source_Surface) != gr_fb_height()) {
// We need to scale the curtain to fit the screen
float scale_w = (float)gr_fb_width() / (float)gr_get_width(source_Surface);
float scale_h = (float)gr_fb_height() / (float)gr_get_height(source_Surface);
if (res_scale_surface(source_Surface, &gCurtain, scale_w, scale_h)) {
LOGINFO("Failed to scale curtain\n");
gCurtain = source_Surface;
} else {
LOGINFO("Scaling the curtain width %fx and height %fx\n", scale_w, scale_h);
}
} else {
gCurtain = source_Surface;
}
curtainSet();
@@ -965,3 +980,46 @@ extern "C" int gui_console_only(void)
return 0;
}
extern "C" void set_scale_values(float w, float h)
{
scale_theme_w = w;
scale_theme_h = h;
}
extern "C" int scale_theme_x(int initial_x)
{
if (scale_theme_w != 1) {
return (int) ((float)initial_x * scale_theme_w);
}
return initial_x;
}
extern "C" int scale_theme_y(int initial_y)
{
if (scale_theme_h != 1) {
return (int) ((float)initial_y * scale_theme_h);
}
return initial_y;
}
extern "C" int scale_theme_min(int initial_value)
{
if (scale_theme_w != 1 || scale_theme_h != 1) {
if (scale_theme_w < scale_theme_h)
return scale_theme_x(initial_value);
else
return scale_theme_y(initial_value);
}
return initial_value;
}
extern "C" float get_scale_w()
{
return scale_theme_w;
}
extern "C" float get_scale_h()
{
return scale_theme_h;
}