RetroArch/gfx/fonts/xdk360_fonts.cpp
2012-07-30 23:42:29 +02:00

521 lines
20 KiB
C++

/* RetroArch - A frontend for libretro.
* Copyright (C) 2010-2012 - Hans-Kristian Arntzen
* Copyright (C) 2011-2012 - Daniel De Matteis
*
* RetroArch is free software: you can redistribute it and/or modify it under the terms
* of the GNU General Public License as published by the Free Software Found-
* ation, either version 3 of the License, or (at your option) any later version.
*
* RetroArch is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
* PURPOSE. See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along with RetroArch.
* If not, see <http://www.gnu.org/licenses/>.
*/
#define NONET
#include <xtl.h>
#include "xdk360_fonts.h"
#include "../../general.h"
video_console_t video_console;
xdk360_video_font_t m_Font;
static PackedResource m_xprResource;
#define CALCFONTFILEHEADERSIZE(x) ( sizeof(unsigned long) + (sizeof(float)* 4) + sizeof(unsigned short) + (sizeof(wchar_t)*(x)) )
#define FONTFILEVERSION 5
typedef struct {
unsigned long m_dwFileVersion; // Version of the font file (Must match FONTFILEVERSION)
float m_fFontHeight; // Height of the font strike in pixels
float m_fFontTopPadding; // Padding above the strike zone
float m_fFontBottomPadding; // Padding below the strike zone
float m_fFontYAdvance; // Number of pixels to move the cursor for a line feed
unsigned short m_cMaxGlyph; // Number of font characters (Should be an odd number to maintain DWORD Alignment)
wchar_t m_TranslatorTable[1]; // ASCII to Glyph lookup table, NOTE: It's m_cMaxGlyph+1 in size.
} FontFileHeaderImage_t;
typedef struct {
unsigned long m_dwNumGlyphs; // Size of font strike array (First entry is the unknown glyph)
GLYPH_ATTR m_Glyphs[1]; // Array of font strike uv's etc... NOTE: It's m_dwNumGlyphs in size
} FontFileStrikesImage_t;
static const char g_strFontShader[] =
"struct VS_IN\n"
"{\n"
"float2 Pos : POSITION;\n"
"float2 Tex : TEXCOORD0;\n"
"};\n"
"struct VS_OUT\n"
"{\n"
"float4 Position : POSITION;\n"
"float2 TexCoord0 : TEXCOORD0;\n"
"};\n"
"uniform float4 Color : register(c1);\n"
"uniform float2 TexScale : register(c2);\n"
"sampler FontTexture : register(s0);\n"
"VS_OUT main_vertex( VS_IN In )\n"
"{\n"
"VS_OUT Out;\n"
"Out.Position.x = (In.Pos.x-0.5);\n"
"Out.Position.y = (In.Pos.y-0.5);\n"
"Out.Position.z = ( 0.0 );\n"
"Out.Position.w = ( 1.0 );\n"
"Out.TexCoord0.x = In.Tex.x * TexScale.x;\n"
"Out.TexCoord0.y = In.Tex.y * TexScale.y;\n"
"return Out;\n"
"}\n"
"float4 main_fragment( VS_OUT In ) : COLOR0\n"
"{\n"
"float4 FontTexel = tex2D( FontTexture, In.TexCoord0 );\n"
"return FontTexel;\n"
"}\n";
typedef struct {
D3DVertexDeclaration* m_pFontVertexDecl;
D3DVertexShader* m_pFontVertexShader;
D3DPixelShader* m_pFontPixelShader;
} Font_Locals_t;
static Font_Locals_t s_FontLocals;
static void xdk360_video_font_get_text_width(xdk360_video_font_t * font, const wchar_t * strText, float * pWidth, float * pHeight)
{
int iWidth = 0;
float fHeight = 0.0f;
if( strText )
{
// Initialize counters that keep track of text extent
int ix = 0;
float fy = font->m_fFontHeight; // One character high to start
if( fy > fHeight )
fHeight = fy;
// Loop through each character and update text extent
unsigned long letter;
while( (letter = *strText) != 0 )
{
++strText;
// Handle newline character
if (letter == L'\n')
break;
// Translate unprintable characters
const GLYPH_ATTR* pGlyph;
if( letter > font->m_cMaxGlyph )
letter = 0; // Out of bounds?
else
letter = font->m_TranslatorTable[letter]; // Remap ASCII to glyph
pGlyph = &font->m_Glyphs[letter]; // Get the requested glyph
// Get text extent for this character's glyph
ix += pGlyph->wOffset;
ix += pGlyph->wAdvance;
// Since the x widened, test against the x extent
if( ix > iWidth )
iWidth = ix;
}
}
float fWidth = (float)iWidth;
fHeight *= font->m_fYScaleFactor; // Apply the scale factor to the result
*pHeight = fHeight; // Store the final results
fWidth *= font->m_fXScaleFactor;
*pWidth = fWidth;
}
static HRESULT xdk360_video_font_create_shaders (xdk360_video_font_t * font)
{
HRESULT hr;
if (!s_FontLocals.m_pFontVertexDecl)
{
do
{
static const D3DVERTEXELEMENT9 decl[] =
{
{ 0, 0, D3DDECLTYPE_FLOAT2, D3DDECLMETHOD_DEFAULT, D3DDECLUSAGE_POSITION, 0 },
{ 0, 8, D3DDECLTYPE_USHORT2, D3DDECLMETHOD_DEFAULT, D3DDECLUSAGE_TEXCOORD, 0 },
{ 0, 12, D3DDECLTYPE_D3DCOLOR, D3DDECLMETHOD_DEFAULT, D3DDECLUSAGE_TEXCOORD, 1 },
D3DDECL_END()
};
xdk_d3d_video_t *vid = (xdk_d3d_video_t*)driver.video_data;
D3DDevice *pd3dDevice = vid->d3d_render_device;
hr = pd3dDevice->CreateVertexDeclaration( decl, &s_FontLocals.m_pFontVertexDecl );
if (hr >= 0)
{
ID3DXBuffer* pShaderCode;
hr = D3DXCompileShader( g_strFontShader, sizeof(g_strFontShader)-1 ,
NULL, NULL, "main_vertex", "vs.2.0", 0,&pShaderCode, NULL, NULL );
if (hr >= 0)
{
hr = pd3dDevice->CreateVertexShader( ( unsigned long * )pShaderCode->GetBufferPointer(),
&s_FontLocals.m_pFontVertexShader );
pShaderCode->Release();
if (hr >= 0)
{
hr = D3DXCompileShader( g_strFontShader, sizeof(g_strFontShader)-1 ,
NULL, NULL, "main_fragment", "ps.2.0", 0,&pShaderCode, NULL, NULL );
if (hr >= 0)
{
hr = pd3dDevice->CreatePixelShader( ( DWORD* )pShaderCode->GetBufferPointer(),
&s_FontLocals.m_pFontPixelShader );
pShaderCode->Release();
if (hr >= 0)
{
hr = 0;
break;
}
}
D3DResource_Release((D3DResource *)s_FontLocals.m_pFontVertexShader);
}
s_FontLocals.m_pFontVertexShader = NULL;
}
D3DResource_Release((D3DResource *)s_FontLocals.m_pFontVertexDecl);
}
s_FontLocals.m_pFontVertexDecl = NULL;
}while(0);
return hr;
}
else
{
D3DResource_AddRef((D3DResource *)s_FontLocals.m_pFontVertexDecl);
D3DResource_AddRef((D3DResource *)s_FontLocals.m_pFontVertexShader);
D3DResource_AddRef((D3DResource *)s_FontLocals.m_pFontPixelShader);
hr = 0;
}
return hr;
}
static HRESULT xdk360_video_font_init(xdk360_video_font_t * font, const char * strFontFileName)
{
font->m_pFontTexture = NULL;
font->m_dwNumGlyphs = 0L;
font->m_Glyphs = NULL;
font->m_fCursorX = 0.0f;
font->m_fCursorY = 0.0f;
font->m_fXScaleFactor = 2.0f;
font->m_fYScaleFactor = 2.0f;
font->m_cMaxGlyph = 0;
font->m_TranslatorTable = NULL;
font->m_dwNestedBeginCount = 0L;
// Create the font
if( FAILED( m_xprResource.Create( strFontFileName ) ) )
return E_FAIL;
D3DTexture * pFontTexture = m_xprResource.GetTexture( "FontTexture" );
const void * pFontData = m_xprResource.GetData( "FontData");
// Save a copy of the texture
font->m_pFontTexture = pFontTexture;
// Check version of file (to make sure it matches up with the FontMaker tool)
const unsigned char * pData = (const unsigned char*)pFontData;
unsigned long dwFileVersion = ((const FontFileHeaderImage_t *)pData)->m_dwFileVersion;
if( dwFileVersion == FONTFILEVERSION )
{
font->m_fFontHeight = ((const FontFileHeaderImage_t *)pData)->m_fFontHeight;
font->m_fFontTopPadding = ((const FontFileHeaderImage_t *)pData)->m_fFontTopPadding;
font->m_fFontBottomPadding = ((const FontFileHeaderImage_t *)pData)->m_fFontBottomPadding;
font->m_fFontYAdvance = ((const FontFileHeaderImage_t *)pData)->m_fFontYAdvance;
// Point to the translator string which immediately follows the 4 floats
font->m_cMaxGlyph = ((const FontFileHeaderImage_t *)pData)->m_cMaxGlyph;
font->m_TranslatorTable = const_cast<FontFileHeaderImage_t*>((const FontFileHeaderImage_t *)pData)->m_TranslatorTable;
pData += CALCFONTFILEHEADERSIZE( font->m_cMaxGlyph + 1 );
// Read the glyph attributes from the file
font->m_dwNumGlyphs = ((const FontFileStrikesImage_t *)pData)->m_dwNumGlyphs;
font->m_Glyphs = ((const FontFileStrikesImage_t *)pData)->m_Glyphs; // Pointer
}
else
{
RARCH_ERR( "Incorrect version number on font file.\n" );
return E_FAIL;
}
// Create the vertex and pixel shaders for rendering the font
if( FAILED( xdk360_video_font_create_shaders(font) ) )
{
RARCH_ERR( "Could not create font shaders.\n" );
return E_FAIL;
}
xdk_d3d_video_t *vid = (xdk_d3d_video_t*)driver.video_data;
D3DDevice *pd3dDevice = vid->d3d_render_device;
// Initialize the window
D3DDISPLAYMODE DisplayMode;
pd3dDevice->GetDisplayMode( 0, &DisplayMode );
font->m_rcWindow.x1 = 0;
font->m_rcWindow.y1 = 0;
font->m_rcWindow.x2 = DisplayMode.Width;
font->m_rcWindow.y2 = DisplayMode.Height;
// Determine whether we should save/restore state
font->m_bSaveState = TRUE;
return 0;
}
HRESULT d3d9_init_font(const char *font_path)
{
xdk_d3d_video_t *vid = (xdk_d3d_video_t*)driver.video_data;
D3DDevice *m_pd3dDevice = vid->d3d_render_device;
video_console.m_Buffer = NULL;
video_console.m_Lines = NULL;
video_console.m_nScrollOffset = 0;
// Calculate the safe area
unsigned int uiSafeAreaPct = vid->video_mode.fIsHiDef ? SAFE_AREA_PCT_HDTV
: SAFE_AREA_PCT_4x3;
video_console.m_cxSafeArea = ( vid->d3dpp.BackBufferWidth * uiSafeAreaPct ) / 100;
video_console.m_cySafeArea = ( vid->d3dpp.BackBufferHeight * uiSafeAreaPct ) / 100;
video_console.m_cxSafeAreaOffset = ( vid->d3dpp.BackBufferWidth - video_console.m_cxSafeArea ) / 2;
video_console.m_cySafeAreaOffset = ( vid->d3dpp.BackBufferHeight - video_console.m_cySafeArea ) / 2;
// Create the font
HRESULT hr = xdk360_video_font_init(&m_Font, font_path);
if (hr < 0)
{
RARCH_ERR( "Could not create font.\n" );
return -1;
}
// Calculate the number of lines on the screen
float fCharWidth, fCharHeight;
xdk360_video_font_get_text_width(&m_Font, L"i", &fCharWidth, &fCharHeight);
video_console.m_cScreenHeight = (unsigned int)( video_console.m_cySafeArea / fCharHeight );
video_console.m_cScreenWidth = (unsigned int)( video_console.m_cxSafeArea / fCharWidth );
video_console.m_cScreenHeightVirtual = video_console.m_cScreenHeight;
video_console.m_fLineHeight = fCharHeight;
// Allocate memory to hold the lines
video_console.m_Buffer = (wchar_t*)malloc(sizeof(wchar_t*) * video_console.m_cScreenHeightVirtual * ( video_console.m_cScreenWidth + 1 ));
video_console.m_Lines = (wchar_t**)malloc( video_console.m_cScreenHeightVirtual * sizeof(wchar_t*));
// Set the line pointers as indexes into the buffer
for( unsigned int i = 0; i < video_console.m_cScreenHeightVirtual; i++ )
video_console.m_Lines[ i ] = video_console.m_Buffer + ( video_console.m_cScreenWidth + 1 ) * i;
video_console.m_nCurLine = 0;
video_console.m_cCurLineLength = 0;
memset( video_console.m_Buffer, 0, video_console.m_cScreenHeightVirtual * ( video_console.m_cScreenWidth + 1 ) * sizeof( wchar_t ) );
xdk360_console_draw();
return hr;
}
void d3d9_deinit_font(void)
{
xdk360_video_font_t *font = &m_Font;
// Delete the memory we've allocated
if(video_console.m_Lines)
{
free(video_console.m_Lines);
video_console.m_Lines = NULL;
}
if(video_console.m_Buffer)
{
free(video_console.m_Buffer);
video_console.m_Buffer = NULL;
}
// Destroy the font
font->m_pFontTexture = NULL;
font->m_dwNumGlyphs = 0L;
font->m_Glyphs = NULL;
font->m_cMaxGlyph = 0;
font->m_TranslatorTable = NULL;
font->m_dwNestedBeginCount = 0L;
if( ( s_FontLocals.m_pFontPixelShader != NULL ) && ( s_FontLocals.m_pFontPixelShader->Release() == 0 ) )
s_FontLocals.m_pFontPixelShader = NULL;
if( ( s_FontLocals.m_pFontVertexShader != NULL ) && ( s_FontLocals.m_pFontVertexShader->Release() == 0 ) )
s_FontLocals.m_pFontVertexShader = NULL;
if( ( s_FontLocals.m_pFontVertexDecl != NULL ) && ( s_FontLocals.m_pFontVertexDecl->Release() == 0 ) )
s_FontLocals.m_pFontVertexDecl = NULL;
if( m_xprResource.Initialized())
m_xprResource.Destroy();
}
void xdk360_console_format(const char * strFormat)
{
video_console.m_nCurLine = 0;
video_console.m_cCurLineLength = 0;
memset( video_console.m_Buffer, 0,
video_console.m_cScreenHeightVirtual *
( video_console.m_cScreenWidth + 1 ) * sizeof( wchar_t ) );
// Output the string to the console
unsigned long uStringLength = strlen(strFormat);
for( unsigned long i = 0; i < uStringLength; i++ )
{
wchar_t wch;
convert_char_to_wchar(&wch, &strFormat[i], sizeof(wch));
// If this is a newline, just increment lines and move on
if( wch == L'\n' )
{
video_console.m_nCurLine = ( video_console.m_nCurLine + 1 )
% video_console.m_cScreenHeightVirtual;
video_console.m_cCurLineLength = 0;
memset(video_console.m_Lines[video_console.m_nCurLine], 0,
( video_console.m_cScreenWidth + 1 ) * sizeof( wchar_t ) );
continue;
}
int bIncrementLine = FALSE; // Whether to wrap to the next line
if( video_console.m_cCurLineLength == video_console.m_cScreenWidth )
bIncrementLine = TRUE;
else
{
float fTextWidth, fTextHeight;
// Try to append the character to the line
video_console.m_Lines[ video_console.m_nCurLine ][ video_console.m_cCurLineLength ] = wch;
xdk360_video_font_get_text_width(&m_Font, video_console.m_Lines[ video_console.m_nCurLine ], &fTextWidth,
&fTextHeight);
if( fTextHeight > video_console.m_cxSafeArea )
{
// The line is too long, we need to wrap the character to the next line
video_console.m_Lines[video_console.m_nCurLine][ video_console.m_cCurLineLength ] = L'\0';
bIncrementLine = TRUE;
}
}
// If we need to skip to the next line, do so
if( bIncrementLine )
{
video_console.m_nCurLine = ( video_console.m_nCurLine + 1 )
% video_console.m_cScreenHeightVirtual;
video_console.m_cCurLineLength = 0;
memset( video_console.m_Lines[video_console.m_nCurLine], 0,
( video_console.m_cScreenWidth + 1 ) * sizeof( wchar_t ) );
video_console.m_Lines[video_console.m_nCurLine ][0] = wch;
}
video_console.m_cCurLineLength++;
}
}
void d3d9_render_msg_pre(xdk360_video_font_t * font)
{
// Set state on the first call
if( font->m_dwNestedBeginCount == 0 )
{
// Cache the global pointer into a register
xdk_d3d_video_t *vid = (xdk_d3d_video_t*)driver.video_data;
D3DDevice *pD3dDevice = vid->d3d_render_device;
// Save state
if( font->m_bSaveState )
{
pD3dDevice->GetRenderState( D3DRS_ALPHABLENDENABLE, &font->m_dwSavedState[ SAVEDSTATE_D3DRS_ALPHABLENDENABLE ] );
pD3dDevice->GetRenderState( D3DRS_SRCBLEND, &font->m_dwSavedState[ SAVEDSTATE_D3DRS_SRCBLEND ] );
pD3dDevice->GetRenderState( D3DRS_DESTBLEND, &font->m_dwSavedState[ SAVEDSTATE_D3DRS_DESTBLEND ] );
pD3dDevice->GetRenderState( D3DRS_ALPHAREF, &font->m_dwSavedState[ SAVEDSTATE_D3DRS_ALPHAREF ] );
pD3dDevice->GetRenderState( D3DRS_ALPHAFUNC, &font->m_dwSavedState[ SAVEDSTATE_D3DRS_ALPHAFUNC ] );
pD3dDevice->GetRenderState( D3DRS_FILLMODE, &font->m_dwSavedState[ SAVEDSTATE_D3DRS_FILLMODE ] );
pD3dDevice->GetRenderState( D3DRS_VIEWPORTENABLE, &font->m_dwSavedState[ SAVEDSTATE_D3DRS_VIEWPORTENABLE ] );
font->m_dwSavedState[ SAVEDSTATE_D3DSAMP_MINFILTER ] = D3DDevice_GetSamplerState_MinFilter( pD3dDevice, 0 );
font->m_dwSavedState[ SAVEDSTATE_D3DSAMP_MAGFILTER ] = D3DDevice_GetSamplerState_MagFilter( pD3dDevice, 0 );
}
// Set the texture scaling factor as a vertex shader constant
D3DSURFACE_DESC TextureDesc;
D3DTexture_GetLevelDesc(font->m_pFontTexture, 0, &TextureDesc); // Get the description
// Set render state
pD3dDevice->SetTexture(0, font->m_pFontTexture);
// Read the TextureDesc here to ensure no load/hit/store from GetLevelDesc()
float vTexScale[4];
vTexScale[0] = 1.0f / TextureDesc.Width; // LHS due to int->float conversion
vTexScale[1] = 1.0f / TextureDesc.Height;
vTexScale[2] = 0.0f;
vTexScale[3] = 0.0f;
D3DDevice_SetRenderState_AlphaBlendEnable( pD3dDevice, TRUE );
D3DDevice_SetRenderState_SrcBlend(pD3dDevice, D3DBLEND_SRCALPHA );
D3DDevice_SetRenderState_DestBlend( pD3dDevice, D3DBLEND_INVSRCALPHA );
pD3dDevice->SetRenderState( D3DRS_ALPHAREF, 0x08 );
pD3dDevice->SetRenderState( D3DRS_ALPHAFUNC, D3DCMP_GREATEREQUAL );
pD3dDevice->SetRenderState( D3DRS_FILLMODE, D3DFILL_SOLID );
pD3dDevice->SetRenderState( D3DRS_VIEWPORTENABLE, FALSE );
pD3dDevice->SetSamplerState(0, D3DSAMP_MINFILTER, D3DTEXF_LINEAR);
pD3dDevice->SetSamplerState(0, D3DSAMP_MAGFILTER, D3DTEXF_LINEAR);
pD3dDevice->SetVertexDeclaration(s_FontLocals.m_pFontVertexDecl);
D3DDevice_SetVertexShader(pD3dDevice, s_FontLocals.m_pFontVertexShader );
D3DDevice_SetPixelShader(pD3dDevice, s_FontLocals.m_pFontPixelShader );
// Set the texture scaling factor as a vertex shader constant
// Call here to avoid load hit store from writing to vTexScale above
pD3dDevice->SetVertexShaderConstantF( 2, vTexScale, 1 );
}
// Keep track of the nested begin/end calls.
font->m_dwNestedBeginCount++;
}
void d3d9_render_msg_post(xdk360_video_font_t * font)
{
if( --font->m_dwNestedBeginCount > 0 )
return;
// Restore state
if( font->m_bSaveState )
{
// Cache the global pointer into a register
xdk_d3d_video_t *vid = (xdk_d3d_video_t*)driver.video_data;
D3DDevice *pD3dDevice = vid->d3d_render_device;
pD3dDevice->SetTexture(0, NULL);
pD3dDevice->SetVertexDeclaration(NULL);
D3DDevice_SetVertexShader(pD3dDevice, NULL );
D3DDevice_SetPixelShader(pD3dDevice, NULL );
D3DDevice_SetRenderState_AlphaBlendEnable(pD3dDevice, font->m_dwSavedState[ SAVEDSTATE_D3DRS_ALPHABLENDENABLE ]);
D3DDevice_SetRenderState_SrcBlend(pD3dDevice, font->m_dwSavedState[ SAVEDSTATE_D3DRS_SRCBLEND ] );
D3DDevice_SetRenderState_DestBlend( pD3dDevice, font->m_dwSavedState[ SAVEDSTATE_D3DRS_DESTBLEND ] );
pD3dDevice->SetRenderState( D3DRS_ALPHAREF, font->m_dwSavedState[ SAVEDSTATE_D3DRS_ALPHAREF ] );
pD3dDevice->SetRenderState( D3DRS_ALPHAFUNC, font->m_dwSavedState[ SAVEDSTATE_D3DRS_ALPHAFUNC ] );
pD3dDevice->SetRenderState( D3DRS_VIEWPORTENABLE, font->m_dwSavedState[ SAVEDSTATE_D3DRS_VIEWPORTENABLE ] );
pD3dDevice->SetSamplerState(0, D3DSAMP_MINFILTER, font->m_dwSavedState[ SAVEDSTATE_D3DSAMP_MINFILTER ]);
pD3dDevice->SetSamplerState(0, D3DSAMP_MAGFILTER, font->m_dwSavedState[ SAVEDSTATE_D3DSAMP_MAGFILTER ]);
}
}