mirror of
https://github.com/nillerusr/source-engine.git
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546 lines
14 KiB
C++
546 lines
14 KiB
C++
//========= Copyright Valve Corporation, All rights reserved. ============//
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//
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// Purpose:
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//
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// $NoKeywords: $
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//===========================================================================//
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#include "cbase.h"
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#include "enginesprite.h"
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#include "hud.h"
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#include "materialsystem/imesh.h"
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#include "materialsystem/imaterial.h"
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#include "materialsystem/imaterialvar.h"
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#include "c_sprite.h"
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#include "tier1/callqueue.h"
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#include "tier1/KeyValues.h"
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#include "tier2/tier2.h"
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#include "filesystem.h"
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// memdbgon must be the last include file in a .cpp file!!!
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#include "tier0/memdbgon.h"
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// Sprites are clipped to this rectangle (x,y,width,height) if ScissorTest is enabled
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static int scissor_x = 0;
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static int scissor_y = 0;
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static int scissor_width = 0;
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static int scissor_height = 0;
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static bool giScissorTest = false;
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//-----------------------------------------------------------------------------
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// Purpose:
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// Set the scissor
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// the coordinate system for gl is upsidedown (inverted-y) as compared to software, so the
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// specified clipping rect must be flipped
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// Input : x -
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// y -
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// width -
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// height -
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//-----------------------------------------------------------------------------
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void EnableScissorTest( int x, int y, int width, int height )
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{
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x = clamp( x, 0, ScreenWidth() );
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y = clamp( y, 0, ScreenHeight() );
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width = clamp( width, 0, ScreenWidth() - x );
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height = clamp( height, 0, ScreenHeight() - y );
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scissor_x = x;
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scissor_width = width;
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scissor_y = y;
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scissor_height = height;
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giScissorTest = true;
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}
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//-----------------------------------------------------------------------------
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// Purpose:
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//-----------------------------------------------------------------------------
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void DisableScissorTest( void )
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{
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scissor_x = 0;
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scissor_width = 0;
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scissor_y = 0;
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scissor_height = 0;
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giScissorTest = false;
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}
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//-----------------------------------------------------------------------------
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// Purpose: Verify that this is a valid, properly ordered rectangle.
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// Input : *prc -
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// Output : int
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//-----------------------------------------------------------------------------
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static int ValidateWRect(const wrect_t *prc)
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{
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if (!prc)
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return false;
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if ((prc->left >= prc->right) || (prc->top >= prc->bottom))
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{
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//!!!UNDONE Dev only warning msg
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return false;
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}
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return true;
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}
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//-----------------------------------------------------------------------------
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// Purpose: classic interview question
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// Input : *prc1 -
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// *prc2 -
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// *prc -
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// Output : int
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//-----------------------------------------------------------------------------
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static int IntersectWRect(const wrect_t *prc1, const wrect_t *prc2, wrect_t *prc)
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{
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wrect_t rc;
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if (!prc)
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prc = &rc;
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prc->left = MAX(prc1->left, prc2->left);
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prc->right = MIN(prc1->right, prc2->right);
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if (prc->left < prc->right)
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{
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prc->top = MAX(prc1->top, prc2->top);
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prc->bottom = MIN(prc1->bottom, prc2->bottom);
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if (prc->top < prc->bottom)
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return 1;
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}
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return 0;
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}
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//-----------------------------------------------------------------------------
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// Purpose:
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// Input : x -
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// y -
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// width -
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// height -
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// u0 -
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// v0 -
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// u1 -
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// v1 -
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// Output : static bool
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//-----------------------------------------------------------------------------
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static bool Scissor( int& x, int& y, int& width, int& height, float& u0, float& v0, float& u1, float& v1 )
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{
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// clip sub rect to sprite
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if ((width == 0) || (height == 0))
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return false;
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if ((x + width <= scissor_x) || (x >= scissor_x + scissor_width) ||
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(y + height <= scissor_y) || (y >= scissor_y + scissor_height))
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return false;
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float dudx = (u1-u0) / width;
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float dvdy = (v1-v0) / height;
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if (x < scissor_x)
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{
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u0 += (scissor_x - x) * dudx;
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width -= scissor_x - x;
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x = scissor_x;
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}
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if (x + width > scissor_x + scissor_width)
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{
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u1 -= (x + width - (scissor_x + scissor_width)) * dudx;
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width = scissor_x + scissor_width - x;
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}
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if (y < scissor_y)
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{
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v0 += (scissor_y - y) * dvdy;
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height -= scissor_y - y;
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y = scissor_y;
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}
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if (y + height > scissor_y + scissor_height)
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{
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v1 -= (y + height - (scissor_y + scissor_height)) * dvdy;
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height = scissor_y + scissor_height - y;
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}
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return true;
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}
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//-----------------------------------------------------------------------------
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// Purpose:
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// Input : *pSprite -
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// frame -
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// *pfLeft -
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// *pfRight -
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// *pfTop -
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// *pfBottom -
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// *pw -
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// *ph -
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// *prcSubRect -
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// Output : static void
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//-----------------------------------------------------------------------------
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static void AdjustSubRect(CEngineSprite *pSprite, int frame, float *pfLeft, float *pfRight, float *pfTop,
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float *pfBottom, int *pw, int *ph, const wrect_t *prcSubRect)
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{
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wrect_t rc;
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float f;
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if (!ValidateWRect(prcSubRect))
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return;
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// clip sub rect to sprite
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rc.top = rc.left = 0;
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rc.right = *pw;
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rc.bottom = *ph;
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if (!IntersectWRect(prcSubRect, &rc, &rc))
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return;
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*pw = rc.right - rc.left;
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*ph = rc.bottom - rc.top;
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f = 1.0 / (float)pSprite->GetWidth();;
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*pfLeft = ((float)rc.left + 0.5) * f;
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*pfRight = ((float)rc.right - 0.5) * f;
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f = 1.0 / (float)pSprite->GetHeight();
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*pfTop = ((float)rc.top + 0.5) * f;
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*pfBottom = ((float)rc.bottom - 0.5) * f;
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return;
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}
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//-----------------------------------------------------------------------------
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// Purpose:
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//-----------------------------------------------------------------------------
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static unsigned int spriteOriginCache = 0;
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static unsigned int spriteOrientationCache = 0;
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bool CEngineSprite::Init( const char *pName )
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{
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m_VideoMaterial = NULL;
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for ( int i = 0; i < kRenderModeCount; ++i )
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{
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m_material[ i ] = NULL;
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}
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m_width = m_height = m_numFrames = 1;
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Assert( g_pVideo != NULL );
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if ( g_pVideo != NULL && g_pVideo->LocateVideoSystemForPlayingFile( pName ) != VideoSystem::NONE )
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{
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m_VideoMaterial = g_pVideo->CreateVideoMaterial( pName, pName, "GAME", VideoPlaybackFlags::DEFAULT_MATERIAL_OPTIONS, VideoSystem::DETERMINE_FROM_FILE_EXTENSION, false );
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if ( m_VideoMaterial == NULL )
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return false;
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IMaterial *pMaterial = m_VideoMaterial->GetMaterial();
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m_VideoMaterial->GetVideoImageSize( &m_width, &m_height );
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m_numFrames = m_VideoMaterial->GetFrameCount();
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for ( int i = 0; i < kRenderModeCount; ++i )
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{
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m_material[i] = pMaterial;
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pMaterial->IncrementReferenceCount();
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}
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}
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else
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{
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char pTemp[MAX_PATH];
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char pMaterialName[MAX_PATH];
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char pMaterialPath[MAX_PATH];
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Q_StripExtension( pName, pTemp, sizeof(pTemp) );
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Q_strlower( pTemp );
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Q_FixSlashes( pTemp, '/' );
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// Check to see if this is a UNC-specified material name
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bool bIsUNC = pTemp[0] == '/' && pTemp[1] == '/' && pTemp[2] != '/';
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if ( !bIsUNC )
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{
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Q_strncpy( pMaterialName, "materials/", sizeof(pMaterialName) );
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Q_strncat( pMaterialName, pTemp, sizeof(pMaterialName), COPY_ALL_CHARACTERS );
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}
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else
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{
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Q_strncpy( pMaterialName, pTemp, sizeof(pMaterialName) );
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}
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Q_strncpy( pMaterialPath, pMaterialName, sizeof(pMaterialPath) );
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Q_SetExtension( pMaterialPath, ".vmt", sizeof(pMaterialPath) );
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KeyValues *kv = new KeyValues( "vmt" );
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if ( !kv->LoadFromFile( g_pFullFileSystem, pMaterialPath, "GAME" ) )
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{
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Warning( "Unable to load sprite material %s!\n", pMaterialPath );
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return false;
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}
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for ( int i = 0; i < kRenderModeCount; ++i )
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{
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if ( i == kRenderNone || i == kRenderEnvironmental )
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{
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m_material[i] = NULL;
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continue;
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}
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Q_snprintf( pMaterialPath, sizeof(pMaterialPath), "%s_rendermode_%d", pMaterialName, i );
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KeyValues *pMaterialKV = kv->MakeCopy();
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pMaterialKV->SetInt( "$spriteRenderMode", i );
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m_material[i] = g_pMaterialSystem->FindProceduralMaterial( pMaterialPath, TEXTURE_GROUP_CLIENT_EFFECTS, pMaterialKV );
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m_material[ i ]->IncrementReferenceCount();
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}
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kv->deleteThis();
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m_width = m_material[0]->GetMappingWidth();
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m_height = m_material[0]->GetMappingHeight();
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m_numFrames = m_material[0]->GetNumAnimationFrames();
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}
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for ( int i = 0; i < kRenderModeCount; ++i )
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{
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if ( i == kRenderNone || i == kRenderEnvironmental )
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continue;
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if ( !m_material[i] )
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return false;
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}
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IMaterialVar *orientationVar = m_material[0]->FindVarFast( "$spriteorientation", &spriteOrientationCache );
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m_orientation = orientationVar ? orientationVar->GetIntValue() : C_SpriteRenderer::SPR_VP_PARALLEL_UPRIGHT;
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IMaterialVar *originVar = m_material[0]->FindVarFast( "$spriteorigin", &spriteOriginCache );
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Vector origin, originVarValue;
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if( !originVar || ( originVar->GetType() != MATERIAL_VAR_TYPE_VECTOR ) )
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{
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origin[0] = -m_width * 0.5f;
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origin[1] = m_height * 0.5f;
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}
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else
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{
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originVar->GetVecValue( &originVarValue[0], 3 );
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origin[0] = -m_width * originVarValue[0];
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origin[1] = m_height * originVarValue[1];
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}
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up = origin[1];
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down = origin[1] - m_height;
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left = origin[0];
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right = m_width + origin[0];
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return true;
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}
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//-----------------------------------------------------------------------------
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// Purpose:
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//-----------------------------------------------------------------------------
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void CEngineSprite::Shutdown( void )
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{
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if ( g_pVideo != NULL && m_VideoMaterial != NULL )
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{
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g_pVideo->DestroyVideoMaterial( m_VideoMaterial );
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m_VideoMaterial = NULL;
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}
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UnloadMaterial();
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}
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//-----------------------------------------------------------------------------
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// Is the sprite a video sprite?
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//-----------------------------------------------------------------------------
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bool CEngineSprite::IsVideo()
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{
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return ( m_VideoMaterial != NULL );
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}
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//-----------------------------------------------------------------------------
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// Returns the texture coordinate range used to draw the sprite
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//-----------------------------------------------------------------------------
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void CEngineSprite::GetTexCoordRange( float *pMinU, float *pMinV, float *pMaxU, float *pMaxV )
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{
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*pMaxU = 1.0f;
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*pMaxV = 1.0f;
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if ( IsVideo() )
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{
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m_VideoMaterial->GetVideoTexCoordRange( pMaxU, pMaxV );
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}
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float flOOWidth = ( m_width != 0 ) ? 1.0f / m_width : 1.0f;
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float flOOHeight = ( m_height!= 0 ) ? 1.0f / m_height : 1.0f;
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*pMinU = 0.5f * flOOWidth;
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*pMinV = 0.5f * flOOHeight;
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*pMaxU = (*pMaxU) - (*pMinU);
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*pMaxV = (*pMaxV) - (*pMinV);
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}
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//-----------------------------------------------------------------------------
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// Purpose:
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//-----------------------------------------------------------------------------
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void CEngineSprite::SetColor( float r, float g, float b )
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{
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Assert( (r >= 0.0) && (g >= 0.0) && (b >= 0.0) );
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Assert( (r <= 1.0) && (g <= 1.0) && (b <= 1.0) );
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m_hudSpriteColor[0] = r;
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m_hudSpriteColor[1] = g;
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m_hudSpriteColor[2] = b;
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}
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//-----------------------------------------------------------------------------
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// Purpose:
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//-----------------------------------------------------------------------------
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void CEngineSprite::GetHUDSpriteColor( float* color )
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{
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VectorCopy( m_hudSpriteColor, color );
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}
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//-----------------------------------------------------------------------------
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// Returns the material
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//-----------------------------------------------------------------------------
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static unsigned int frameCache = 0;
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IMaterial *CEngineSprite::GetMaterial( RenderMode_t nRenderMode, int nFrame )
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{
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if ( nRenderMode == kRenderNone || nRenderMode == kRenderEnvironmental )
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return NULL;
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if ( IsVideo() )
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{
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m_VideoMaterial->SetFrame( nFrame );
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}
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IMaterial *pMaterial = m_material[nRenderMode];
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if( !pMaterial )
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return NULL;
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IMaterialVar* pFrameVar = pMaterial->FindVarFast( "$frame", &frameCache );
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if ( pFrameVar )
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{
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pFrameVar->SetIntValue( nFrame );
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}
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return pMaterial;
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}
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void CEngineSprite::SetFrame( RenderMode_t nRenderMode, int nFrame )
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{
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if ( IsVideo() )
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{
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m_VideoMaterial->SetFrame( nFrame );
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return;
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}
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IMaterial *pMaterial = m_material[nRenderMode];
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if ( !pMaterial )
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return;
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IMaterialVar* pFrameVar = pMaterial->FindVarFast( "$frame", &frameCache );
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if ( pFrameVar )
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{
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pFrameVar->SetIntValue( nFrame );
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}
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}
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//-----------------------------------------------------------------------------
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// Purpose:
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// Output : int
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//-----------------------------------------------------------------------------
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int CEngineSprite::GetOrientation( void )
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{
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return m_orientation;
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}
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//-----------------------------------------------------------------------------
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// Purpose:
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//-----------------------------------------------------------------------------
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void CEngineSprite::UnloadMaterial( void )
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{
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for ( int i = 0; i < kRenderModeCount; ++i )
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{
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if( m_material[i] )
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{
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m_material[i]->DecrementReferenceCount();
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m_material[i] = NULL;
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}
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}
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}
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//-----------------------------------------------------------------------------
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// Purpose:
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//-----------------------------------------------------------------------------
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void CEngineSprite::DrawFrame( RenderMode_t nRenderMode, int frame, int x, int y, const wrect_t *prcSubRect )
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{
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DrawFrameOfSize( nRenderMode, frame, x, y, GetWidth(), GetHeight(), prcSubRect );
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}
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//-----------------------------------------------------------------------------
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// Purpose:
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// Input : frame -
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// x -
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// y -
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// *prcSubRect -
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//-----------------------------------------------------------------------------
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void CEngineSprite::DrawFrameOfSize( RenderMode_t nRenderMode, int frame, int x, int y, int iWidth, int iHeight, const wrect_t *prcSubRect )
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{
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// FIXME: If we ever call this with AVIs, need to have it call GetTexCoordRange and make that work
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Assert( !IsVideo() );
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float fLeft = 0;
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float fRight = 1;
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float fTop = 0;
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float fBottom = 1;
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if ( prcSubRect )
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{
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AdjustSubRect( this, frame, &fLeft, &fRight, &fTop, &fBottom, &iWidth, &iHeight, prcSubRect );
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}
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if ( giScissorTest && !Scissor( x, y, iWidth, iHeight, fLeft, fTop, fRight, fBottom ) )
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return;
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SetFrame( nRenderMode, frame );
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CMatRenderContextPtr pRenderContext( materials );
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IMesh* pMesh = pRenderContext->GetDynamicMesh( true, NULL, NULL, GetMaterial( nRenderMode ) );
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CMeshBuilder meshBuilder;
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meshBuilder.Begin( pMesh, MATERIAL_QUADS, 1 );
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float color[3];
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GetHUDSpriteColor( color );
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meshBuilder.Color3fv( color );
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meshBuilder.TexCoord2f( 0, fLeft, fTop );
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meshBuilder.Position3f( x, y, 0.0f );
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meshBuilder.AdvanceVertex();
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meshBuilder.Color3fv( color );
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meshBuilder.TexCoord2f( 0, fRight, fTop );
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meshBuilder.Position3f( x + iWidth, y, 0.0f );
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meshBuilder.AdvanceVertex();
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meshBuilder.Color3fv( color );
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meshBuilder.TexCoord2f( 0, fRight, fBottom );
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meshBuilder.Position3f( x + iWidth, y + iHeight, 0.0f );
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meshBuilder.AdvanceVertex();
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meshBuilder.Color3fv( color );
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meshBuilder.TexCoord2f( 0, fLeft, fBottom );
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meshBuilder.Position3f( x, y + iHeight, 0.0f );
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meshBuilder.AdvanceVertex();
|
|
|
|
meshBuilder.End();
|
|
pMesh->Draw();
|
|
}
|