add optional overscan compensation to recovery graphics
If your screen is a TV, it may not actually be displaying the edges of
the framebuffer. Allow specifying an overscan percentage, and move
each edge of the framebuffer in by that percent of the width/height.
(The gr_* layer just lies to the caller about the size of the
framebuffer, telling the caller it's smaller than it really is, and
offsets all drawing commands to match.)
Change-Id: I11bb2feb39ae522bd3e957a14ebdecf3609e0fdc
diff --git a/minui/Android.mk b/minui/Android.mk
index 285ac62..43e0ad3 100644
--- a/minui/Android.mk
+++ b/minui/Android.mk
@@ -20,4 +20,10 @@
LOCAL_CFLAGS += -DRECOVERY_BGRA
endif
+ifneq ($(TARGET_RECOVERY_OVERSCAN_PERCENT),)
+ LOCAL_CFLAGS += -DOVERSCAN_PERCENT=$(TARGET_RECOVERY_OVERSCAN_PERCENT)
+else
+ LOCAL_CFLAGS += -DOVERSCAN_PERCENT=0
+endif
+
include $(BUILD_STATIC_LIBRARY)
diff --git a/minui/graphics.c b/minui/graphics.c
index 287878e..747b2db 100644
--- a/minui/graphics.c
+++ b/minui/graphics.c
@@ -60,6 +60,9 @@
static GGLSurface gr_mem_surface;
static unsigned gr_active_fb = 0;
static unsigned double_buffering = 0;
+static int overscan_percent = OVERSCAN_PERCENT;
+static int overscan_offset_x = 0;
+static int overscan_offset_y = 0;
static int gr_fb_fd = -1;
static int gr_vt_fd = -1;
@@ -132,6 +135,9 @@
return -1;
}
+ overscan_offset_x = vi.xres * overscan_percent / 100;
+ overscan_offset_y = vi.yres * overscan_percent / 100;
+
fb->version = sizeof(*fb);
fb->width = vi.xres;
fb->height = vi.yres;
@@ -224,6 +230,9 @@
GRFont *font = gr_font;
unsigned off;
+ x += overscan_offset_x;
+ y += overscan_offset_y;
+
y -= font->ascent;
gl->bindTexture(gl, &font->texture);
@@ -250,6 +259,9 @@
}
GGLContext* gl = gr_context;
+ x += overscan_offset_x;
+ y += overscan_offset_y;
+
gl->bindTexture(gl, (GGLSurface*) icon);
gl->texEnvi(gl, GGL_TEXTURE_ENV, GGL_TEXTURE_ENV_MODE, GGL_REPLACE);
gl->texGeni(gl, GGL_S, GGL_TEXTURE_GEN_MODE, GGL_ONE_TO_ONE);
@@ -263,11 +275,17 @@
gl->recti(gl, x, y, x+gr_get_width(icon), y+gr_get_height(icon));
}
-void gr_fill(int x, int y, int w, int h)
+void gr_fill(int x1, int y1, int x2, int y2)
{
+ x1 += overscan_offset_x;
+ y1 += overscan_offset_y;
+
+ x2 += overscan_offset_x;
+ y2 += overscan_offset_y;
+
GGLContext *gl = gr_context;
gl->disable(gl, GGL_TEXTURE_2D);
- gl->recti(gl, x, y, w, h);
+ gl->recti(gl, x1, y1, x2, y2);
}
void gr_blit(gr_surface source, int sx, int sy, int w, int h, int dx, int dy) {
@@ -276,6 +294,9 @@
}
GGLContext *gl = gr_context;
+ dx += overscan_offset_x;
+ dy += overscan_offset_y;
+
gl->bindTexture(gl, (GGLSurface*) source);
gl->texEnvi(gl, GGL_TEXTURE_ENV, GGL_TEXTURE_ENV_MODE, GGL_REPLACE);
gl->texGeni(gl, GGL_S, GGL_TEXTURE_GEN_MODE, GGL_ONE_TO_ONE);
@@ -385,12 +406,12 @@
int gr_fb_width(void)
{
- return gr_framebuffer[0].width;
+ return gr_framebuffer[0].width - 2*overscan_offset_x;
}
int gr_fb_height(void)
{
- return gr_framebuffer[0].height;
+ return gr_framebuffer[0].height - 2*overscan_offset_y;
}
gr_pixel *gr_fb_data(void)
diff --git a/minui/minui.h b/minui/minui.h
index 767ffcb..bc43bb5 100644
--- a/minui/minui.h
+++ b/minui/minui.h
@@ -36,7 +36,7 @@
void gr_fb_blank(bool blank);
void gr_color(unsigned char r, unsigned char g, unsigned char b, unsigned char a);
-void gr_fill(int x, int y, int w, int h);
+void gr_fill(int x1, int y1, int x2, int y2);
int gr_text(int x, int y, const char *s);
void gr_texticon(int x, int y, gr_surface icon);
int gr_measure(const char *s);