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Created a free look utility which only works on win32 right now. It lets the user fly around with the mouse and keyboard. Had to add some ugly matrix functions to the math utilities.

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git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@3005 8ced0084-cf51-0410-be5f-012b33b47a6e
This commit is contained in:
donkopunchstania
2009-04-19 10:10:45 +00:00
parent b4c22390ac
commit 93348abc18
11 changed files with 303 additions and 14 deletions
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80
Source/Core/VideoCommon/Src/VertexShaderManager.cpp
View File

@ -16,6 +16,7 @@
// http://code.google.com/p/dolphin-emu/
#include "Common.h"
#include "MathUtil.h"
#include "Profiler.h"
#include <cmath>
@ -45,6 +46,11 @@ static int nNormalMatricesChanged[2]; // min,max
static int nPostTransformMatricesChanged[2]; // min,max
static int nLightsChanged[2]; // min,max
static Matrix33 s_viewRotationMatrix;
static Matrix33 s_viewInvRotationMatrix;
static float s_fViewTranslationVector[3];
static float s_fViewRotation[2];
void UpdateViewport();
void VertexShaderManager::Init()
@ -59,6 +65,8 @@ void VertexShaderManager::Init()
memset(&xfregs, 0, sizeof(xfregs));
memset(xfmem, 0, sizeof(xfmem));
ResetView();
}
void VertexShaderManager::Shutdown()
@ -69,7 +77,7 @@ void VertexShaderManager::Shutdown()
// =======================================================================================
// Syncs the shader constant buffers with xfmem
// ----------------
void VertexShaderManager::SetConstants(bool proj_hax_1,bool SMG_hack)
void VertexShaderManager::SetConstants(bool proj_hax_1,bool SMG_hack, bool freeLook)
{
//nTransformMatricesChanged[0] = 0; nTransformMatricesChanged[1] = 256;
//nNormalMatricesChanged[0] = 0; nNormalMatricesChanged[1] = 96;
@ -293,10 +301,29 @@ void VertexShaderManager::SetConstants(bool proj_hax_1,bool SMG_hack)
}
PRIM_LOG("Projection: %f %f %f %f %f %f\n", xfregs.rawProjection[0], xfregs.rawProjection[1], xfregs.rawProjection[2], xfregs.rawProjection[3], xfregs.rawProjection[4], xfregs.rawProjection[5]);
SetVSConstant4fv(C_PROJECTION, &g_fProjectionMatrix[0]);
SetVSConstant4fv(C_PROJECTION+1, &g_fProjectionMatrix[4]);
SetVSConstant4fv(C_PROJECTION+2, &g_fProjectionMatrix[8]);
SetVSConstant4fv(C_PROJECTION+3, &g_fProjectionMatrix[12]);
if (freeLook) {
Matrix44 mtxA;
Matrix44 mtxB;
Matrix44 viewMtx;
Matrix44::Translate(mtxA, s_fViewTranslationVector);
Matrix44::LoadMatrix33(mtxB, s_viewRotationMatrix);
Matrix44::Multiply(mtxB, mtxA, viewMtx); // view = rotation x translation
Matrix44::Set(mtxB, g_fProjectionMatrix);
Matrix44::Multiply(mtxB, viewMtx, mtxA); // mtxA = projection x view
SetVSConstant4fv(C_PROJECTION, &mtxA.data[0]);
SetVSConstant4fv(C_PROJECTION+1, &mtxA.data[4]);
SetVSConstant4fv(C_PROJECTION+2, &mtxA.data[8]);
SetVSConstant4fv(C_PROJECTION+3, &mtxA.data[12]);
}
else {
SetVSConstant4fv(C_PROJECTION, &g_fProjectionMatrix[0]);
SetVSConstant4fv(C_PROJECTION+1, &g_fProjectionMatrix[4]);
SetVSConstant4fv(C_PROJECTION+2, &g_fProjectionMatrix[8]);
SetVSConstant4fv(C_PROJECTION+3, &g_fProjectionMatrix[12]);
}
}
}
@ -430,3 +457,46 @@ void VertexShaderManager::SetMaterialColor(int index, u32 data)
s_fMaterials[ind++] = ((data>>8)&0xFF)/255.0f;
s_fMaterials[ind] = ((data)&0xFF)/255.0f;
}
void VertexShaderManager::TranslateView(float x, float y)
{
float result[3];
float vector[3] = { x,0,y };
Matrix33::Multiply(s_viewInvRotationMatrix, vector, result);
for(int i = 0; i < 3; i++) {
s_fViewTranslationVector[i] += result[i];
}
bProjectionChanged = true;
}
void VertexShaderManager::RotateView(float x, float y)
{
s_fViewRotation[0] += x;
s_fViewRotation[1] += y;
Matrix33 mx;
Matrix33 my;
Matrix33::RotateX(mx, s_fViewRotation[1]);
Matrix33::RotateY(my, s_fViewRotation[0]);
Matrix33::Multiply(mx, my, s_viewRotationMatrix);
// reverse rotation
Matrix33::RotateX(mx, -s_fViewRotation[1]);
Matrix33::RotateY(my, -s_fViewRotation[0]);
Matrix33::Multiply(my, mx, s_viewInvRotationMatrix);
bProjectionChanged = true;
}
void VertexShaderManager::ResetView()
{
memset(s_fViewTranslationVector, 0, sizeof(s_fViewTranslationVector));
Matrix33::LoadIdentity(s_viewRotationMatrix);
Matrix33::LoadIdentity(s_viewInvRotationMatrix);
s_fViewRotation[0] = s_fViewRotation[1] = 0.0f;
bProjectionChanged = true;
}