From: Toni Wilen <twilen@winuae.net>
Date: Tue, 21 Feb 2023 16:20:51 +0000 (+0200)
Subject: Display rotation option (currently D3D9 only), to support Fast Draw Showdown (America... 
X-Git-Tag: 5.0.0~135
X-Git-Url: https://git.unchartedbackwaters.co.uk/w/?a=commitdiff_plain;h=1f521d0744cb283509be3e854fc4d31bd515811b;p=francis%2Fwinuae.git

Display rotation option (currently D3D9 only), to support Fast Draw Showdown (American Laser games)
---

diff --git a/cfgfile.cpp b/cfgfile.cpp
index a651e04a..d75c9128 100644
--- a/cfgfile.cpp
+++ b/cfgfile.cpp
@@ -2394,6 +2394,7 @@ void cfgfile_save_options (struct zfile *f, struct uae_prefs *p, int type)
 	cfgfile_dwrite_bool(f, _T("gfx_vrr_monitor"), p->gfx_variable_sync != 0);
 	cfgfile_dwrite_strarr(f, _T("gfx_overscanmode"), overscanmodes, p->gfx_overscanmode);
 	cfgfile_dwrite(f, _T("gfx_monitorblankdelay"), _T("%d"), p->gfx_monitorblankdelay);
+	cfgfile_dwrite(f, _T("gfx_rotation"), _T("%d"), p->gfx_rotation);
 
 #ifdef GFXFILTER
 	for (int j = 0; j < MAX_FILTERDATA; j++) {
@@ -3606,6 +3607,7 @@ static int cfgfile_parse_host (struct uae_prefs *p, TCHAR *option, TCHAR *value)
 		|| cfgfile_intval(option, value, _T("gfx_horizontal_extra"), &p->gfx_extrawidth, 1)
 		|| cfgfile_intval(option, value, _T("gfx_vertical_extra"), &p->gfx_extraheight, 1)
 		|| cfgfile_intval(option, value, _T("gfx_monitorblankdelay"), &p->gfx_monitorblankdelay, 1)
+		|| cfgfile_intval(option, value, _T("gfx_rotation"), &p->gfx_rotation, 1)
 
 		|| cfgfile_intval (option, value, _T("floppy0sound"), &p->floppyslots[0].dfxclick, 1)
 		|| cfgfile_intval (option, value, _T("floppy1sound"), &p->floppyslots[1].dfxclick, 1)
diff --git a/include/options.h b/include/options.h
index c00a70b0..0668b632 100644
--- a/include/options.h
+++ b/include/options.h
@@ -609,6 +609,7 @@ struct uae_prefs {
 	bool gfx_windowed_resize;
 	int gfx_overscanmode;
 	int gfx_monitorblankdelay;
+	int gfx_rotation;
 
 	struct gfx_filterdata gf[3];
 
diff --git a/od-win32/direct3d.cpp b/od-win32/direct3d.cpp
index 5b0a4af3..1101d1b4 100644
--- a/od-win32/direct3d.cpp
+++ b/od-win32/direct3d.cpp
@@ -253,7 +253,7 @@ static TCHAR *D3D_ErrorString (HRESULT dival)
 	return dierr;
 }
 
-static D3DXMATRIX* MatrixOrthoOffCenterLH (D3DXMATRIXA16 *pOut, float l, float r, float b, float t, float zn, float zf)
+static D3DXMATRIX* MatrixOrthoOffCenterLH(D3DXMATRIXA16 *pOut, float l, float r, float b, float t, float zn, float zf)
 {
 	pOut->_11=2.0f/r; pOut->_12=0.0f;   pOut->_13=0.0f;  pOut->_14=0.0f;
 	pOut->_21=0.0f;   pOut->_22=2.0f/t; pOut->_23=0.0f;  pOut->_24=0.0f;
@@ -262,7 +262,7 @@ static D3DXMATRIX* MatrixOrthoOffCenterLH (D3DXMATRIXA16 *pOut, float l, float r
 	return pOut;
 }
 
-static D3DXMATRIX* MatrixScaling (D3DXMATRIXA16 *pOut, float sx, float sy, float sz)
+static D3DXMATRIX* MatrixScaling(D3DXMATRIXA16 *pOut, float sx, float sy, float sz)
 {
 	pOut->_11=sx;     pOut->_12=0.0f;   pOut->_13=0.0f;  pOut->_14=0.0f;
 	pOut->_21=0.0f;   pOut->_22=sy;     pOut->_23=0.0f;  pOut->_24=0.0f;
@@ -271,7 +271,7 @@ static D3DXMATRIX* MatrixScaling (D3DXMATRIXA16 *pOut, float sx, float sy, float
 	return pOut;
 }
 
-static D3DXMATRIX* MatrixTranslation (D3DXMATRIXA16 *pOut, float tx, float ty, float tz)
+static D3DXMATRIX* MatrixTranslation(D3DXMATRIXA16 *pOut, float tx, float ty, float tz)
 {
 	pOut->_11=1.0f;   pOut->_12=0.0f;   pOut->_13=0.0f;  pOut->_14=0.0f;
 	pOut->_21=0.0f;   pOut->_22=1.0f;   pOut->_23=0.0f;  pOut->_24=0.0f;
@@ -2171,6 +2171,15 @@ static void setupscenecoords(struct d3dstruct *d3d, bool normalrender)
 
 	MatrixScaling (&d3d->m_matWorld_out, sw + 0.5f / sw, sh + 0.5f / sh, 1.0f);
 
+	if (currprefs.gfx_rotation) {
+		const float PI = 3.14159265358979f;
+		D3DXMATRIXA16 mrot;
+		D3DXMatrixRotationZ(&mrot, PI / 180.0f * currprefs.gfx_rotation);
+		D3DXMATRIXA16 tmprmatrix;
+		D3DXMatrixMultiply(&tmprmatrix, &d3d->m_matWorld_out, &mrot);
+		d3d->m_matWorld_out = tmprmatrix;
+	}
+
 	d3d->cursor_offset_x = -zr.left;
 	d3d->cursor_offset_y = -zr.top;