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https://github.com/mupen64plus/mupen64plus-oldsvn.git
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80 lines
2.1 KiB
C++
80 lines
2.1 KiB
C++
#include "glN64.h"
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#include "Types.h"
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#include "VI.h"
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#include "OpenGL.h"
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#include "N64.h"
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#include "gSP.h"
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#include "gDP.h"
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#include "RSP.h"
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#include "FrameBuffer.h"
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#include "Debug.h"
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VIInfo VI;
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void VI_UpdateSize()
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{
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f32 xScale = _FIXED2FLOAT( _SHIFTR( *REG.VI_X_SCALE, 0, 12 ), 10 );
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//f32 xOffset = _FIXED2FLOAT( _SHIFTR( *REG.VI_X_SCALE, 16, 12 ), 10 );
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f32 yScale = _FIXED2FLOAT( _SHIFTR( *REG.VI_Y_SCALE, 0, 12 ), 10 );
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//f32 yOffset = _FIXED2FLOAT( _SHIFTR( *REG.VI_Y_SCALE, 16, 12 ), 10 );
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u32 hEnd = _SHIFTR( *REG.VI_H_START, 0, 10 );
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u32 hStart = _SHIFTR( *REG.VI_H_START, 16, 10 );
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// These are in half-lines, so shift an extra bit
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u32 vEnd = _SHIFTR( *REG.VI_V_START, 1, 9 );
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u32 vStart = _SHIFTR( *REG.VI_V_START, 17, 9 );
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VI.width = (unsigned int)((hEnd - hStart) * xScale);
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VI.height = (unsigned int)((vEnd - vStart) * yScale * 1.0126582f);
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if (VI.width < 320) VI.width = 320;
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if (VI.height < 240) VI.height = 240;
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}
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void VI_UpdateScreen()
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{
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glFinish();
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if (OGL.frameBufferTextures)
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{
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FrameBuffer *current = FrameBuffer_FindBuffer( *REG.VI_ORIGIN );
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if ((*REG.VI_ORIGIN != VI.lastOrigin) || ((current) && current->changed))
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{
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if (gDP.colorImage.changed)
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{
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FrameBuffer_SaveBuffer( gDP.colorImage.address, gDP.colorImage.size, gDP.colorImage.width, gDP.colorImage.height );
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gDP.colorImage.changed = FALSE;
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}
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FrameBuffer_RenderBuffer( *REG.VI_ORIGIN );
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gDP.colorImage.changed = FALSE;
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VI.lastOrigin = *REG.VI_ORIGIN;
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#ifdef DEBUG
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while (Debug.paused && !Debug.step);
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Debug.step = FALSE;
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#endif
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}
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}
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else
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{
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if (gSP.changed & CHANGED_COLORBUFFER)
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{
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#ifdef USEWIN32
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SwapBuffers( OGL.hDC );
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#endif
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#ifdef USEPOSIX
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OGL_SwapBuffers();
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#endif
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gSP.changed &= ~CHANGED_COLORBUFFER;
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#ifdef DEBUG
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while (Debug.paused && !Debug.step);
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Debug.step = FALSE;
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#endif
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}
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}
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glFinish();
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}
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