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vc_egl_ctx.c: Align render and screen aspect ratio if hardware upscaling is used.

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Take care render and screen aspect ratios are equal if hardware upscaling is used. Recalculate and override fullscreen_x if aspect ratios do not match. There are other aspect ratio settings, which can be used to stretch video output.
This commit is contained in:
gizmo98 2015-02-21 13:47:57 +01:00
parent 8bd698d132
commit 6dbba1c956
1 changed files with 48 additions and 4 deletions
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52
gfx/drivers_context/vc_egl_ctx.c
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@ -135,11 +135,25 @@ static void gfx_ctx_vc_get_video_size(void *data,
unsigned *width, unsigned *height)
{
(void)data;
// Use dispmanx upscaling if fullscreen_x and fullscreen_y are set.
if (g_settings.video.fullscreen_x != 0 &&
g_settings.video.fullscreen_y != 0)
{
*width = g_settings.video.fullscreen_x;
// Keep input and output aspect ratio equal.
// There are other aspect ratio settings which can be used to stretch video output.
// --------------------------------------------------------------------------------
// Calculate source and destination aspect ratios.
float srcAspect = (float)g_settings.video.fullscreen_x / (float)g_settings.video.fullscreen_y;
float dstAspect = (float)g_fb_width / (float)g_fb_height;
// If source and destination aspect ratios are not equal correct source width.
if (srcAspect != dstAspect)
{
*width = (unsigned)(g_settings.video.fullscreen_y * dstAspect);
}
else
{
*width = g_settings.video.fullscreen_x;
}
*height = g_settings.video.fullscreen_y;
}
else
@ -230,10 +244,25 @@ static bool gfx_ctx_vc_init(void *data)
src_rect.x = 0;
src_rect.y = 0;
// Use dispmanx upscaling if fullscreen_x and fullscreen_y are set.
if (g_settings.video.fullscreen_x != 0 &&
g_settings.video.fullscreen_y != 0)
{
src_rect.width = g_settings.video.fullscreen_x << 16;
// Keep input and output aspect ratio equal.
// There are other aspect ratio settings which can be used to stretch video output.
// --------------------------------------------------------------------------------
// Calculate source and destination aspect ratios.
float srcAspect = (float)g_settings.video.fullscreen_x / (float)g_settings.video.fullscreen_y;
float dstAspect = (float)g_fb_width / (float)g_fb_height;
// If source and destination aspect ratios are not equal correct source width.
if (srcAspect != dstAspect)
{
src_rect.width = (unsigned)(g_settings.video.fullscreen_y * dstAspect) << 16;
}
else
{
src_rect.width = g_settings.video.fullscreen_x << 16;
}
src_rect.height = g_settings.video.fullscreen_y << 16;
}
else
@ -256,10 +285,25 @@ static bool gfx_ctx_vc_init(void *data)
&src_rect, DISPMANX_PROTECTION_NONE, &alpha, 0 /*clamp*/, DISPMANX_NO_ROTATE);
nativewindow.element = dispman_element;
// Use dispmanx upscaling if fullscreen_x and fullscreen_y are set.
if (g_settings.video.fullscreen_x != 0 &&
g_settings.video.fullscreen_y != 0)
{
nativewindow.width = g_settings.video.fullscreen_x;
// Keep input and output aspect ratio equal.
// There are other aspect ratio settings which can be used to stretch video output.
// --------------------------------------------------------------------------------
// Calculate source and destination aspect ratios.
float srcAspect = (float)g_settings.video.fullscreen_x / (float)g_settings.video.fullscreen_y;
float dstAspect = (float)g_fb_width / (float)g_fb_height;
// If source and destination aspect ratios are not equal correct source width.
if (srcAspect != dstAspect)
{
nativewindow.width = (unsigned)(g_settings.video.fullscreen_y * dstAspect);
}
else
{
nativewindow.width = g_settings.video.fullscreen_x;
}
nativewindow.height = g_settings.video.fullscreen_y;
}
else