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- intscalex, intscaley and unevenstretchx now consider the system orientation and screen rotation

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This commit is contained in:
Jezze 2016-08-13 19:57:16 +02:00
parent 0df3c1d099
commit 161a08dd4a
1 changed files with 27 additions and 18 deletions
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45
src/emu/render.cpp
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@ -74,15 +74,6 @@ enum
//**************************************************************************
// MACROS
//**************************************************************************
#define ISWAP(var1, var2) do { int temp = var1; var1 = var2; var2 = temp; } while (0)
#define FSWAP(var1, var2) do { float temp = var1; var1 = var2; var2 = temp; } while (0)
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
@ -136,8 +127,8 @@ inline void apply_orientation(render_bounds &bounds, int orientation)
// swap first
if (orientation & ORIENTATION_SWAP_XY)
{
FSWAP(bounds.x0, bounds.y0);
FSWAP(bounds.x1, bounds.y1);
std::swap(bounds.x0, bounds.y0);
std::swap(bounds.x1, bounds.y1);
}
// apply X flip
@ -164,9 +155,9 @@ inline void apply_orientation(render_bounds &bounds, int orientation)
inline void normalize_bounds(render_bounds &bounds)
{
if (bounds.x0 > bounds.x1)
FSWAP(bounds.x0, bounds.x1);
std::swap(bounds.x0, bounds.x1);
if (bounds.y0 > bounds.y1)
FSWAP(bounds.y0, bounds.y1);
std::swap(bounds.y0, bounds.y1);
}
@ -947,7 +938,7 @@ render_target::render_target(render_manager &manager, const internal_layout *lay
if (manager.machine().options().uneven_stretch() && !manager.machine().options().uneven_stretch_x())
m_scale_mode = SCALE_FRACTIONAL;
else
m_scale_mode = manager.machine().options().uneven_stretch_x()? SCALE_FRACTIONAL_X : SCALE_INTEGER;
m_scale_mode = manager.machine().options().uneven_stretch_x() ? SCALE_FRACTIONAL_X : SCALE_INTEGER;
// determine the base orientation based on options
if (!manager.machine().options().rotate())
@ -1161,6 +1152,10 @@ const render_screen_list &render_target::view_screens(int viewindex)
void render_target::compute_visible_area(INT32 target_width, INT32 target_height, float target_pixel_aspect, int target_orientation, INT32 &visible_width, INT32 &visible_height)
{
bool system_swap_xy = (m_manager.machine().system().flags & ORIENTATION_SWAP_XY) == ORIENTATION_SWAP_XY;
bool target_swap_xy = (target_orientation & ORIENTATION_SWAP_XY) == ORIENTATION_SWAP_XY;
bool swap_xy = system_swap_xy ^ target_swap_xy;
switch (m_scale_mode)
{
case SCALE_FRACTIONAL:
@ -1177,7 +1172,7 @@ void render_target::compute_visible_area(INT32 target_width, INT32 target_height
// first apply target orientation
if (target_orientation & ORIENTATION_SWAP_XY)
FSWAP(width, height);
std::swap(width, height);
// apply the target pixel aspect ratio
height *= target_pixel_aspect;
@ -1222,21 +1217,35 @@ void render_target::compute_visible_area(INT32 target_width, INT32 target_height
bool x_is_integer = !(target_aspect >= 1.0f && m_scale_mode == SCALE_FRACTIONAL_X);
bool y_is_integer = !(target_aspect < 1.0f && m_scale_mode == SCALE_FRACTIONAL_X);
// apply swap to scale mode
if (swap_xy)
std::swap(x_is_integer, y_is_integer);
// first compute scale factors to fit the screen
float xscale = (float)target_width / src_width;
float yscale = (float)target_height / src_height;
float maxxscale = std::max(1.0f, float(m_int_overscan ? render_round_nearest(xscale) : floor(xscale)));
float maxyscale = std::max(1.0f, float(m_int_overscan ? render_round_nearest(yscale) : floor(yscale)));
// apply swap to maximum scale factors
if (swap_xy)
std::swap(maxxscale, maxyscale);
// now apply desired scale mode and aspect correction
if (m_keepaspect && target_aspect > src_aspect) xscale *= src_aspect / target_aspect * (maxyscale / yscale);
if (m_keepaspect && target_aspect < src_aspect) yscale *= target_aspect / src_aspect * (maxxscale / xscale);
if (x_is_integer) xscale = std::min(maxxscale, std::max(1.0f, render_round_nearest(xscale)));
if (y_is_integer) yscale = std::min(maxyscale, std::max(1.0f, render_round_nearest(yscale)));
// apply swap to user defined scale factors
int int_scale_x = m_int_scale_x;
int int_scale_y = m_int_scale_y;
if (swap_xy)
std::swap(int_scale_x, int_scale_y);
// check if we have user defined scale factors, if so use them instead
xscale = m_int_scale_x? m_int_scale_x : xscale;
yscale = m_int_scale_y? m_int_scale_y : yscale;
xscale = int_scale_x > 0 ? int_scale_x : xscale;
yscale = int_scale_y > 0 ? int_scale_y : yscale;
// set the final width/height
visible_width = render_round_nearest(src_width * xscale);
@ -2051,7 +2060,7 @@ void render_target::add_element_primitives(render_primitive_list &list, const ob
INT32 height = render_round_nearest(xform.yscale);
set_render_bounds_wh(&prim->bounds, render_round_nearest(xform.xoffs), render_round_nearest(xform.yoffs), (float) width, (float) height);
if (xform.orientation & ORIENTATION_SWAP_XY)
ISWAP(width, height);
std::swap(width, height);
width = std::min(width, m_maxtexwidth);
height = std::min(height, m_maxtexheight);