libraries/demo/demo_GraphicsDrawing.cpp

/*---------------------------------------------------------------------------*
  Project:  NintendoWare
  File:     demo_GraphicsDrawing.cpp

  Copyright (C)2009-2011 Nintendo/HAL Laboratory, Inc.  All rights reserved.

  These coded instructions, statements, and computer programs contain proprietary
  information of Nintendo and/or its licensed developers and are protected by
  national and international copyright laws. They may not be disclosed to third
  parties or copied or duplicated in any form, in whole or in part, without the
  prior written consent of Nintendo.

  The content herein is highly confidential and should be handled accordingly.

  $Revision: 31311 $
 *---------------------------------------------------------------------------*/

#include <nw/os.h>
#include <nw/demo.h>
#include <nw/demo/demo_GraphicsDrawing.h>
#include <nw/gfx/gfx_Common.h>
#include <GLES2/gl2.h>
#include <GLES2/gl2ext.h>

namespace nw {
namespace demo {

const f32 GraphicsDrawing::FONT_SIZE = 16.0f;
const f32 GraphicsDrawing::FONT_FIXED_WIDTH = 10.5f;

//--------------------------------------------------------------------------
/* ctor */
GraphicsDrawing::GraphicsDrawing()
 : m_ScreenSize( f32(DEFAULT_SCREEN_WIDTH), f32(DEFAULT_SCREEN_HEIGHT) ),
   m_LineWidth( 2.0f ),
   m_MaxShapeVertexCount( DEFAULT_MAX_SHAPE_VERTEX_COUNT ),
   m_ShapeVertexCount( 0 ),
   m_pShapeShaderBinary( NULL ),
   m_ShapeShader(),
   m_ShapeBindSymbolProjectionMatrix(),
   m_ShapeBindSymbolModelViewMatrix(),
   m_ShapeBindSymbolPos(),
   m_ShapeBindSymbolColor(),
   m_ShapeViewport(),
   m_ShapeRenderState(),
   m_ShapeCombiner(),
   m_ShapeVertex(),
   m_ShapeIndexStream(),
   m_ShapePositionStreamArray( NULL ),
   m_ShapeColorStreamArray( NULL ),
   m_ShapeIndexStreamArray( NULL ),
   m_ShapeAllocator( NULL ),
   m_Font(),
   m_TextWriter(),
   m_Drawer(),
   m_MaxTextCount( DEFAULT_MAX_TEXT_COUNT ),
   m_FontCommandBuffer( NULL ),
   m_IsFontOwner( true ),
   m_FontAllocator( NULL )
{
}

//--------------------------------------------------------------------------
GraphicsDrawing::~GraphicsDrawing()
{
}

//--------------------------------------------------------------------------
void
GraphicsDrawing::Finalize()
{
    this->DestroyShape();

    this->DestroyFont();

    m_FontAllocator = NULL;
    m_ShapeAllocator = NULL;
}

//--------------------------------------------------------------------------
bool
GraphicsDrawing::InitializeShape( void* pShaderBinary, size_t binarySize )
{
    bool result = true;

    m_pShapeShaderBinary = pShaderBinary;

    NN_UNUSED_VAR( binarySize );

    // シェーダーバイナリを指定して初期化
    // 0番目の実行イメージを頂点シェーダーとして有効化
    m_ShapeShader.SetupBinary( pShaderBinary, 0, -1 );

    // 文字列で、Uniform を検索
    result = m_ShapeShader.SearchBindSymbol( &m_ShapeBindSymbolProjectionMatrix, "uProjection" );
    NW_ASSERT( result );

    result = m_ShapeShader.SearchBindSymbol( &m_ShapeBindSymbolModelViewMatrix, "uModelView" );
    NW_ASSERT( result );

    // 文字列による location の検索
    result = m_ShapeShader.SearchBindSymbol( &m_ShapeBindSymbolPos, "aPosition" );
    NW_ASSERT( result );

    result = m_ShapeShader.SearchBindSymbol( &m_ShapeBindSymbolColor, "aColor" );
    NW_ASSERT( result );

    // 頂点ストリームの設定
    uptr physicalAddr = nngxGetPhysicalAddr( reinterpret_cast< uptr >( m_ShapePositionStreamArray ) );
    m_ShapeVertex.EnableAttrAsArray( m_ShapeBindSymbolPos, physicalAddr, PICA_DATA_SIZE_2_FLOAT );

    physicalAddr = nngxGetPhysicalAddr( reinterpret_cast< uptr >( m_ShapeColorStreamArray ) );
    m_ShapeVertex.EnableAttrAsArray( m_ShapeBindSymbolColor, physicalAddr, PICA_DATA_SIZE_4_FLOAT );

    // インデックスストリームの設定
    physicalAddr = nngxGetPhysicalAddr( reinterpret_cast< uptr >( m_ShapeIndexStreamArray ) );
    m_ShapeIndexStream.physicalAddr   = physicalAddr;
    m_ShapeIndexStream.isUnsignedByte = false;

    return result;
}

//--------------------------------------------------------------------------
bool
GraphicsDrawing::InitializeShape( os::IAllocator* allocator, const wchar_t* shaderPath )
{
    m_ShapeAllocator = allocator;

    ut::MoveArray<u8> buffer = nw::demo::Utility::LoadFile( allocator, shaderPath );

    if ( buffer.empty() )
    {
        return false;
    }

    s32 size = buffer.size();
    void* pBuffer = buffer.release();

    u32 shapePositionStreamArraySize = 2 * 4 * m_MaxShapeVertexCount;
    u32 shapeColorStreamArraySize    = 4 * 4 * m_MaxShapeVertexCount;
    u32 shapeIndexStreamArraySize    = 2 * m_MaxShapeVertexCount;

    m_ShapePositionStreamArray = static_cast<math::VEC2*>( m_ShapeAllocator->Alloc( shapePositionStreamArraySize, 128 ) );
    m_ShapeColorStreamArray    = static_cast<f32*>( m_ShapeAllocator->Alloc( shapeColorStreamArraySize, 128 ) );
    m_ShapeIndexStreamArray    = static_cast<u16*>( m_ShapeAllocator->Alloc( shapeIndexStreamArraySize, 128 ) );

    for ( s32 index = 0; index < m_MaxShapeVertexCount; index++ )
    {
        m_ShapePositionStreamArray[ index ] = math::VEC2( 0.0f, 0.0f );

        u32 colorIndex = 4 * index;
        m_ShapeColorStreamArray[ colorIndex     ] = 1.0f;
        m_ShapeColorStreamArray[ colorIndex + 1 ] = 1.0f;
        m_ShapeColorStreamArray[ colorIndex + 2 ] = 1.0f;
        m_ShapeColorStreamArray[ colorIndex + 3 ] = 1.0f;
    }

    for ( s32 index = 0; index < m_MaxShapeVertexCount; index++ )
    {
        m_ShapeIndexStreamArray[ index ] = static_cast<u16>( index );
    }
    InitializeShapeGraphicsState();

    return InitializeShape( pBuffer, size );
}

//--------------------------------------------------------------------------
void
GraphicsDrawing::DestroyShape()
{
    m_ShapeVertex.DisableAll();

    if ( m_pShapeShaderBinary && m_ShapeAllocator )
    {
        os::SafeFree( m_pShapeShaderBinary, m_ShapeAllocator );
    }

    if ( m_ShapeAllocator )
    {
        os::SafeFree( m_ShapePositionStreamArray, m_ShapeAllocator );
        os::SafeFree( m_ShapeColorStreamArray, m_ShapeAllocator );
        os::SafeFree( m_ShapeIndexStreamArray, m_ShapeAllocator );
    }
}


//--------------------------------------------------------------------------
void
GraphicsDrawing::SetupShape()
{
    this->SetupShapeMaterial();
    this->SetupShapeTexEnv();
}

//--------------------------------------------------------------------------
void
GraphicsDrawing::BeginDrawingShape()
{
    SetupShape();

    m_ShapeVertexCount = 0;

    m_ShapeViewport.Set( 0, 0, m_ScreenSize.y, m_ScreenSize.x );

    bit32* command;
    nngxGetCmdlistParameteri( NN_GX_CMDLIST_CURRENT_BUFADDR, reinterpret_cast<GLint*>( &command ) );

    bit32* commandStart = command;
    command      = m_ShapeViewport.MakeCommand( command );

    nngxMoveCommandbufferPointer( ( command - commandStart ) * sizeof(u32) );

    this->SendShapeMatrix();
}

//--------------------------------------------------------------------------
void
GraphicsDrawing::EndDrawingShape( void )
{
    m_ShapeIndexStream.drawVtxNum          = m_ShapeVertexCount;

    u32 shapePositionStreamArraySize = 2 * 4 * m_ShapeVertexCount;
    u32 shapeColorStreamArraySize    = 4 * 4 * m_ShapeVertexCount;
    u32 shapeIndexStreamArraySize    = 2 * m_ShapeVertexCount;

    nngxUpdateBuffer( m_ShapePositionStreamArray, shapePositionStreamArraySize );
    nngxUpdateBuffer( m_ShapeColorStreamArray,    shapeColorStreamArraySize );
    nngxUpdateBuffer( m_ShapeIndexStreamArray, shapeIndexStreamArraySize );

    bit32* command;
    nngxGetCmdlistParameteri( NN_GX_CMDLIST_CURRENT_BUFADDR, reinterpret_cast<GLint*>( &command ) );

    bit32* commandStart = command;
    command      = nn::gr::CTR::Vertex::MakeDisableCommand( command );
    command      = m_ShapeVertex.MakeEnableAttrCommand( command );
    command      = m_ShapeVertex.MakeDrawCommand( command, m_ShapeIndexStream );
    command      = m_ShapeVertex.MakeDisableAttrCommand( command );
    command      = nn::gr::CTR::Vertex::MakeDisableCommand( command );

    nngxMoveCommandbufferPointer( ( command - commandStart ) * sizeof(u32) );

    m_ShapeVertexCount = 0;
}


//--------------------------------------------------------------------------
void
GraphicsDrawing::DrawLine( const math::VEC2& p1, const math::VEC2& p2, ut::Color8 color )
{
    NW_ASSERT( ( m_ShapeVertexCount + SHAPE_DRAW_LINE_VERTEX_COUNT ) <= m_MaxShapeVertexCount );

    s32 count = this->BuildLine( p1, p2, m_LineWidth, &m_ShapePositionStreamArray[ m_ShapeVertexCount ] );

    u32 index = 4 * m_ShapeVertexCount;
    BuildColor( count, color, &m_ShapeColorStreamArray[ index ] );

    m_ShapeVertexCount += count;
}

//--------------------------------------------------------------------------
void
GraphicsDrawing::DrawRectangle( const math::VEC2& pos, const math::VEC2& size, ut::Color8 color )
{
    NW_ASSERT( ( m_ShapeVertexCount + SHAPE_DRAW_RECTANGLE_VERTEX_COUNT ) <= m_MaxShapeVertexCount );

    s32 count = 0;

    count += this->BuildLine( pos, math::VEC2( pos.x + size.x, pos.y ),
        m_LineWidth, &m_ShapePositionStreamArray[ m_ShapeVertexCount + count ] );

    count += this->BuildLine(
        math::VEC2( pos.x + size.x, pos.y ), pos + size,
        m_LineWidth, &m_ShapePositionStreamArray[ m_ShapeVertexCount + count ] );

    count += this->BuildLine( pos + size, math::VEC2( pos.x, pos.y + size.y ),
        m_LineWidth, &m_ShapePositionStreamArray[ m_ShapeVertexCount + count ] );

    count += this->BuildLine(math::VEC2( pos.x, pos.y + size.y ), pos,
        m_LineWidth, &m_ShapePositionStreamArray[ m_ShapeVertexCount + count ] );

    u32 index = 4 * m_ShapeVertexCount;
    BuildColor( count, color, &m_ShapeColorStreamArray[ index ] );

    m_ShapeVertexCount += count;
}

//--------------------------------------------------------------------------
void
GraphicsDrawing::FillRectangle( const math::VEC2& pos, const math::VEC2& size, ut::Color8 color )
{
    NW_ASSERT( ( m_ShapeVertexCount + SHAPE_FILL_RECTANGLE_VERTEX_COUNT ) <= m_MaxShapeVertexCount );

    s32 count = this->BuildRectangle(pos, size, &m_ShapePositionStreamArray[ m_ShapeVertexCount ]);

    u32 index = 4 * m_ShapeVertexCount;
    BuildColor( count, color, &m_ShapeColorStreamArray[ index ] );

    m_ShapeVertexCount += count;
}

//--------------------------------------------------------------------------
void
GraphicsDrawing::FillTriangle( const math::VEC2& pt1, const math::VEC2& pt2, const math::VEC2& pt3, ut::Color8 color )
{
    NW_ASSERT( ( m_ShapeVertexCount + SHAPE_FILL_TRIANGLE_VERTEX_COUNT ) <= m_MaxShapeVertexCount );

    s32 count = this->BuildTriangle( pt1, pt2, pt3, &m_ShapePositionStreamArray[ m_ShapeVertexCount ] );

    u32 index = 4 * m_ShapeVertexCount;
    BuildColor( count, color, &m_ShapeColorStreamArray[ index ] );

    m_ShapeVertexCount += count;
}

//--------------------------------------------------------------------------
void
GraphicsDrawing::FillTriangles( const math::VEC2* pPointArray, s32 pointCount, ut::Color8 color )
{
    NW_NULL_ASSERT( pPointArray );
    NW_ASSERT( pointCount > 0 );

    NW_ASSERT( ( m_ShapeVertexCount + pointCount ) <= m_MaxShapeVertexCount );

    s32 size = 2 * 4 * pointCount;
    std::memcpy( &m_ShapePositionStreamArray[ m_ShapeVertexCount ],
                 pPointArray, size );

    u32 index = 4 * m_ShapeVertexCount;
    BuildColor( pointCount, color, &m_ShapeColorStreamArray[ index ] );

    m_ShapeVertexCount += pointCount;
}

//--------------------------------------------------------------------------
bool
GraphicsDrawing::InitializeFont(
    os::IAllocator* allocator,
    const wchar_t* fontShaderPath,
    const wchar_t* fontPath
)
{
    m_FontAllocator = allocator;
    m_IsFontOwner = true;

    // フォントリソースをロードします。
    ut::MoveArray<u8> fontData = nw::demo::Utility::LoadFile( allocator, fontPath, nw::font::GlyphDataAlignment );
    ut::MoveArray<u8> fontShaderData = nw::demo::Utility::LoadFile( allocator, fontShaderPath );

    s32 fontSize = fontData.size();
    void* fontBuffer = fontData.release();

    s32 shaderSize = fontShaderData.size();
    void* shaderBuffer = fontShaderData.release();

    const u32 vtxBufCommandBufferSize =
        nw::font::RectDrawer::GetVertexBufferCommandBufferSize(shaderBuffer, shaderSize);
    m_FontCommandBuffer = allocator->Alloc(vtxBufCommandBufferSize);
    NN_NULL_ASSERT(m_FontCommandBuffer);

    const u32 drawBufferSize = nw::font::ResFont::GetDrawBufferSize(fontBuffer);
    void* drawBuffer = allocator->Alloc(drawBufferSize, 4);
    NW_NULL_ASSERT(drawBuffer);

    const u32 stringBufferSize = nw::font::CharWriter::GetDispStringBufferSize(m_MaxTextCount);
    void *const stringBuffer = allocator->Alloc(stringBufferSize);
    NN_NULL_ASSERT(stringBuffer);

    bool result = false;
    if ( fontBuffer != NULL && shaderBuffer != NULL )
    {
        result = this->InitializeFontFromBinary( shaderBuffer, shaderSize, fontBuffer, fontSize, drawBuffer, stringBuffer );
    }

    os::SafeFree(shaderBuffer, allocator);

    if ( ! result )
    {
        os::SafeFree(fontBuffer, allocator);
    }

    return result;
}

//--------------------------------------------------------------------------
bool
GraphicsDrawing::InitializeFont(
    os::IAllocator* allocator,
    const wchar_t* fontShaderPath,
    void* fontBinary,
    size_t fontSize
)
{
    m_FontAllocator = allocator;
    m_IsFontOwner = false;

    ut::MoveArray<u8> fontShaderData = nw::demo::Utility::LoadFile( allocator, fontShaderPath );

    s32 shaderSize = fontShaderData.size();
    void* shaderBuffer = fontShaderData.release();

    const u32 vtxBufCommandBufferSize =
        nw::font::RectDrawer::GetVertexBufferCommandBufferSize(shaderBuffer, shaderSize);
    m_FontCommandBuffer = allocator->Alloc(vtxBufCommandBufferSize);
    NN_NULL_ASSERT(m_FontCommandBuffer);

    const u32 drawBufferSize = nw::font::ResFont::GetDrawBufferSize(fontBinary);
    void* drawBuffer = allocator->Alloc(drawBufferSize, 4);
    NW_NULL_ASSERT(drawBuffer);

    const u32 stringBufferSize = nw::font::CharWriter::GetDispStringBufferSize(m_MaxTextCount);
    void *const stringBuffer = allocator->Alloc(stringBufferSize);
    NN_NULL_ASSERT(stringBuffer);

    bool result = this->InitializeFontFromBinary( shaderBuffer, shaderSize, fontBinary, fontSize, drawBuffer, stringBuffer );

    os::SafeFree(shaderBuffer, allocator);

    return result;
}

//--------------------------------------------------------------------------
void
GraphicsDrawing::DestroyFont()
{
    m_Drawer.Finalize();

    os::SafeFree(m_FontCommandBuffer, m_FontAllocator);

    nw::font::DispStringBuffer* stringBuffer = m_TextWriter.GetDispStringBuffer();
    os::SafeFree(stringBuffer, m_FontAllocator);

    // フォントの破棄
    if (!m_Font.IsManaging(NULL))
    {
        void* drawBuffer = m_Font.SetDrawBuffer(NULL);
        void* resource = m_Font.RemoveResource();

        if (m_IsFontOwner)
        {
            os::SafeFree(resource, m_FontAllocator);
        }

        os::SafeFree(drawBuffer, m_FontAllocator);
    }
}

//--------------------------------------------------------------------------
void
GraphicsDrawing::BeginDrawingString()
{
    // カラーバッファ情報
    // LCDの向きに合わせて、幅と高さを入れ替えています。
    const nw::font::ColorBufferInfo colBufInfo = { m_ScreenSize.y, m_ScreenSize.x, PICA_DATA_DEPTH24_STENCIL8_EXT };

    const u32 screenSettingCommands[] =
    {
        // ビューポートの設定
        NW_FONT_CMD_SET_VIEWPORT( 0, 0, colBufInfo.width, colBufInfo.height ),

        // シザー処理を無効
        NW_FONT_CMD_SET_DISABLE_SCISSOR( colBufInfo ),

        // wバッファの無効化
        // デプスレンジの設定
        // ポリゴンオフセットの無効化
        NW_FONT_CMD_SET_WBUFFER_DEPTHRANGE_POLYGONOFFSET(
            0.0f,           // wScale : 0.0 でWバッファが無効
            0.0f,           // depth range near
            1.0f,           // depth range far
            0,              // polygon offset units : 0.0 で ポリゴンオフセットが無効
            colBufInfo),
    };

    nngxAdd3DCommand(screenSettingCommands, sizeof(screenSettingCommands), true);

    static const u32 s_InitCommands[] =
    {
        // カリングを無効
        NW_FONT_CMD_SET_CULL_FACE( NW_FONT_CMD_CULL_FACE_DISABLE ),

        // ステンシルテストを無効
        NW_FONT_CMD_SET_DISABLE_STENCIL_TEST(),

        // デプステストを無効
        // カラーバッファの全ての成分を書き込み可
        NW_FONT_CMD_SET_DEPTH_FUNC_COLOR_MASK(
            false,  // isDepthTestEnabled
            0,      // depthFunc
            true,   // depthMask
            true,   // red
            true,   // green
            true,   // blue
            true),  // alpha

        // アーリーデプステストを無効
        NW_FONT_CMD_SET_ENABLE_EARLY_DEPTH_TEST( false ),

        // フレームバッファアクセス制御
        NW_FONT_CMD_SET_FBACCESS(
            true,   // colorRead
            true,   // colorWrite
            false,  // depthRead
            false,  // depthWrite
            false,  // stencilRead
            false), // stencilWrite
    };

    nngxAdd3DCommand(s_InitCommands, sizeof(s_InitCommands), true);

    m_Drawer.DrawBegin();

    this->SendFontMatrix();

    m_TextWriter.SetCursor( 0, 0 );
}

//--------------------------------------------------------------------------
f32
GraphicsDrawing::DrawString( const char* format, ... )
{
    NW_NULL_ASSERT( format );

    std::va_list vargs;
    va_start(vargs, format);

    m_TextWriter.StartPrint();
        f32 width = m_TextWriter.VPrintf(format, vargs);
    m_TextWriter.EndPrint();

    m_Drawer.BuildTextCommand(&m_TextWriter);
    m_TextWriter.UseCommandBuffer();

    va_end(vargs);

    return width;
}

//--------------------------------------------------------------------------
f32
GraphicsDrawing::DrawString( s32 posh, s32 posv, const char* format, ... )
{
    NW_NULL_ASSERT( format );

    m_TextWriter.SetCursor( static_cast<f32>(posh), static_cast<f32>(posv) );

    std::va_list vargs;
    va_start(vargs, format);

    f32 width = this->DrawStringArgs( posh, posv, format, vargs);

    va_end(vargs);

    return width;
}

//--------------------------------------------------------------------------
f32
GraphicsDrawing::DrawStringArgs( s32 posh, s32 posv, const char* format, std::va_list args )
{
    NW_NULL_ASSERT( format );

    m_TextWriter.SetCursor( static_cast<f32>(posh), static_cast<f32>(posv) );

    m_TextWriter.StartPrint();
        f32 width = m_TextWriter.VPrintf(format, args);
    m_TextWriter.EndPrint();

    m_Drawer.BuildTextCommand(&m_TextWriter);
    m_TextWriter.UseCommandBuffer();

    return width;
}

//--------------------------------------------------------------------------
void
GraphicsDrawing::EndDrawingString()
{
    m_Drawer.DrawEnd();
}

//--------------------------------------------------------------------------
void
GraphicsDrawing::InitializeShapeGraphicsState()
{
    // レンダリングステートの設定
    m_ShapeRenderState.blend.isEnable          = true;
    m_ShapeRenderState.blend.eqRgb             = PICA_DATA_BLEND_EQUATION_ADD;
    m_ShapeRenderState.blend.eqAlpha           = PICA_DATA_BLEND_EQUATION_ADD;
    m_ShapeRenderState.blend.srcRgb            = PICA_DATA_BLEND_FUNC_SRC_ALPHA;
    m_ShapeRenderState.blend.srcAlpha          = PICA_DATA_BLEND_FUNC_ONE_MINUS_SRC_ALPHA;
    m_ShapeRenderState.blend.dstRgb            = PICA_DATA_BLEND_FUNC_ONE_MINUS_SRC_ALPHA;
    m_ShapeRenderState.blend.dstAlpha          = PICA_DATA_BLEND_FUNC_ONE_MINUS_SRC_ALPHA;

    m_ShapeRenderState.stencilTest.isEnable    = false;

    m_ShapeRenderState.depthTest.isEnable      = false;
    m_ShapeRenderState.depthTest.isEnableWrite = false;

    m_ShapeRenderState.cullingTest.isEnable    = false;

    // テクスチャコンバイナの設定
    for ( u32 stageIndex = 0; stageIndex < nn::gr::CTR::Combiner::COMBINER_STAGE_MAX; stageIndex++ )
    {
        m_ShapeCombiner.stage[ stageIndex ].rgb.combine   = PICA_DATA_TEX_ENV_COMBINE_REPLACE;
        m_ShapeCombiner.stage[ stageIndex ].alpha.combine = PICA_DATA_TEX_ENV_COMBINE_REPLACE;

        for ( u32 sourceIndex = 0; sourceIndex < 3; sourceIndex++)
        {
            if ( ( stageIndex == 0 ) && ( sourceIndex == 0 ) )
            {
                m_ShapeCombiner.stage[ stageIndex ].rgb.source[ sourceIndex ]   = PICA_DATA_TEX_ENV_SRC_RGBA_PRIMARY_COLOR;
                m_ShapeCombiner.stage[ stageIndex ].alpha.source[ sourceIndex ] = PICA_DATA_TEX_ENV_SRC_RGBA_PRIMARY_COLOR;
            }
            else
            {
                m_ShapeCombiner.stage[ stageIndex ].rgb.source[ sourceIndex ]   = PICA_DATA_TEX_ENV_SRC_RGBA_PREVIOUS;
                m_ShapeCombiner.stage[ stageIndex ].alpha.source[ sourceIndex ] = PICA_DATA_TEX_ENV_SRC_RGBA_PREVIOUS;
            }

            m_ShapeCombiner.stage[ stageIndex ].rgb.operand[ sourceIndex ]      = PICA_DATA_OPE_RGB_SRC_COLOR;
            m_ShapeCombiner.stage[ stageIndex ].alpha.operand[ sourceIndex ]    = PICA_DATA_OPE_ALPHA_SRC_ALPHA;
        }

        m_ShapeCombiner.stage[ stageIndex ].rgb.scale   = PICA_DATA_TEX_ENV_SCALE_1;
        m_ShapeCombiner.stage[ stageIndex ].alpha.scale = PICA_DATA_TEX_ENV_SCALE_1;
    }
}

//--------------------------------------------------------------------------
void
GraphicsDrawing::SetupShapeMaterial()
{
    bit32* command;
    nngxGetCmdlistParameteri( NN_GX_CMDLIST_CURRENT_BUFADDR, reinterpret_cast<GLint*>( &command ) );

    bit32* commandStart = command;
    command = m_ShapeShader.MakeFullCommand( command );
    command = m_ShapeRenderState.MakeCommand( command ) ;

    nngxMoveCommandbufferPointer( ( command - commandStart ) * sizeof(u32) );
}

//--------------------------------------------------------------------------
void
GraphicsDrawing::SetupShapeTexEnv()
{
    bit32* command;
    nngxGetCmdlistParameteri( NN_GX_CMDLIST_CURRENT_BUFADDR, reinterpret_cast<GLint*>( &command ) );

    bit32* commandStart = command;
    command      = m_ShapeCombiner.MakeCommand( command );

    nngxMoveCommandbufferPointer( ( command - commandStart ) * sizeof(u32) );
}

//--------------------------------------------------------------------------
void
GraphicsDrawing::SendShapeMatrix()
{
    nw::math::MTX44 projMtx;
    nw::math::MTX44 viewMtx;

    const nw::math::VEC3 camPos( 0.0f, 0.0f, 1.0f );
    const nw::math::VEC3 aimPos( 0.0f, 0.0f, 0.0f );
    const nw::math::VEC3 camUp( 0.0f, 1.0f, 0.0f );

    f32 width        = m_ScreenSize.y;
    f32 height       = m_ScreenSize.x;

    const f32 left   = 0.f;
    f32 right        = m_ScreenSize.x;
    f32 bottom       = m_ScreenSize.y;
    const f32 top    = 0.f;

    const f32 znear = - 100.0f;
    const f32 zfar  =   100.0f;

    math::MTX44OrthoPivot( &projMtx, left, right, bottom, top, znear, zfar, math::PIVOT_UPSIDE_TO_TOP );

    math::MTX44Identity( &viewMtx );
    math::MTX34LookAt( reinterpret_cast<nw::math::MTX34*>(&viewMtx), &camPos, &camUp, &aimPos );

    bit32* command;
    nngxGetCmdlistParameteri( NN_GX_CMDLIST_CURRENT_BUFADDR, reinterpret_cast<GLint*>( &command ) );

    bit32* commandStart = command;

    // シェーダのUniformを設定
    {
        command = m_ShapeBindSymbolProjectionMatrix.MakeUniformCommand( command, projMtx );
        command = m_ShapeBindSymbolModelViewMatrix.MakeUniformCommand( command, viewMtx );
    }

    nngxMoveCommandbufferPointer( ( command - commandStart ) * sizeof(u32) );
}

//--------------------------------------------------------------------------
s32
GraphicsDrawing::BuildTriangle( const math::VEC2& pt1, const math::VEC2& pt2, const math::VEC2& pt3, math::VEC2 *pVecArray )
{
    NW_NULL_ASSERT( pVecArray );

    pVecArray[ 0 ] = pt1;
    pVecArray[ 1 ] = pt2;
    pVecArray[ 2 ] = pt3;

    return 3;
}

//--------------------------------------------------------------------------
s32
GraphicsDrawing::BuildRectangle(
    const math::VEC2& pt1,
    const math::VEC2& pt2,
    const math::VEC2& pt3,
    const math::VEC2& pt4,
    math::VEC2 *pVecArray )
{
    NW_NULL_ASSERT( pVecArray );
    s32 count = 0;

    count += this->BuildTriangle( pt1, pt2, pt3, &pVecArray[count] );
    count += this->BuildTriangle( pt1, pt3, pt4, &pVecArray[count] );

    return count;
}

//--------------------------------------------------------------------------
s32
GraphicsDrawing::BuildRectangle( const math::VEC2& pos, const math::VEC2& size, math::VEC2 *pVecArray )
{
    NW_NULL_ASSERT( pVecArray );

    s32 count = 0;
    count += this->BuildRectangle(
        pos,
        math::VEC2(pos.x + size.x, pos.y),
        pos + size,
        math::VEC2(pos.x, pos.y + size.y),
        pVecArray );

    return count;
}

//--------------------------------------------------------------------------
s32
GraphicsDrawing::BuildLine( const math::VEC2& pt1, const math::VEC2& pt2, f32 lineWidth, math::VEC2 *pVecArray )
{
    NW_ASSERT( lineWidth >= 0.f );
    NW_NULL_ASSERT( pVecArray );

    math::VEC2 direction  = pt1 - pt2;
    math::VEC2 ortho      = math::VEC2( direction.y, - direction.x );

    VEC2Normalize( &ortho, &ortho );
    ortho *= lineWidth;

    s32 count = 0;

    count += this->BuildRectangle( pt1 - ortho / 2, pt1 + ortho / 2, pt2 + ortho / 2, pt2 - ortho / 2, pVecArray );

    return count;
}

//--------------------------------------------------------------------------
void
GraphicsDrawing::BuildColor( const s32 vertexCount, const ut::Color8 color,
                             f32* pColorArray )
{
    ut::FloatColor floatColor = color;

    for ( s32 index = 0; index < vertexCount; index++ )
    {
        s32 colorIndex = 4 * index;
        pColorArray[ colorIndex    ] = floatColor.r;
        pColorArray[ colorIndex + 1] = floatColor.g;
        pColorArray[ colorIndex + 2] = floatColor.b;
        pColorArray[ colorIndex + 3] = floatColor.a;
    }
}

//--------------------------------------------------------------------------
bool
GraphicsDrawing::InitializeFontFromBinary(
    void* shaderBinary,
    size_t shaderSize,
    void* fontBinary,
    size_t fontSize,
    void* drawBuffer,
    void* stringBuffer
)
{
    if ( ! this->InitializeFontResource( fontBinary, fontSize ) )
    {
        return false;
    }

    if ( ! this->InitializeFontShader( shaderBinary, shaderSize ) )
    {
        return false;
    }

    // 描画用バッファを設定します。
    m_Font.SetDrawBuffer(drawBuffer);

    m_TextWriter.SetFont( &m_Font );
    m_TextWriter.SetFontSize( FONT_SIZE, FONT_SIZE );
    m_TextWriter.EnableFixedWidth( true );
    m_TextWriter.SetFixedWidth( FONT_FIXED_WIDTH );
    nw::font::DispStringBuffer *const pDrawStringBuf = nw::font::CharWriter::InitDispStringBuffer(stringBuffer, m_MaxTextCount);
    m_TextWriter.SetDispStringBuffer(pDrawStringBuf);

    return true;
}

//--------------------------------------------------------------------------
bool
GraphicsDrawing::InitializeFontResource( void* fontData, size_t fontSize )
{
    NW_UNUSED_VARIABLE( fontSize );

    // フォントリソースをセットします。
    return m_Font.SetResource( fontData );
}


//--------------------------------------------------------------------------
bool
GraphicsDrawing::InitializeFontShader( void* shaderBinary, size_t shaderSize )
{
    m_Drawer.Initialize(m_FontCommandBuffer, shaderBinary, shaderSize);
    return true;
}

//--------------------------------------------------------------------------
void
GraphicsDrawing::SendFontMatrix()
{
    //---- 射影行列を正射影に設定
    {
        // 左上原点とし、Y軸とZ軸の向きが逆になるように設定します。
        math::MTX44 proj;
        const f32 znear =   0.0f;
        const f32 zfar  = - 1.0f;
        const f32 t     =      0;
        f32 b           =  static_cast<f32>( m_ScreenSize.y );
        const f32 l     =      0;
        f32 r           =  static_cast<f32>( m_ScreenSize.x );

        math::MTX44OrthoPivot( &proj, l, r, b, t, znear, zfar, math::PIVOT_UPSIDE_TO_TOP );

        m_Drawer.SetProjectionMtx( proj );
    }

    //---- モデルビュー行列を単位行列に設定
    {
        nn::math::MTX34 mv;
        nn::math::MTX34Identity(&mv);
        m_Drawer.SetViewMtxForText(mv);
    }
}

} /* namespace demo */
} /* namespace nw   */