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OpenGL: Trying a new function to fix glScissor() and glViewport() when bpmem.copyTexSrcWH is not 640x480. It's only enabled with g_Config.bStretchToFit and without g_Config.bKeepAR to test how it works. Hopefully I have not broken all other modes.

Browse Source 
git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@2310 8ced0084-cf51-0410-be5f-012b33b47a6e
This commit is contained in:
John Peterson
2009-02-19 06:52:01 +00:00
parent 14ab646978
commit 5746ed490c
8 changed files with 207 additions and 71 deletions
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92
Source/Plugins/Plugin_VideoOGL/Src/Render.cpp
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@ -47,6 +47,11 @@
#include "XFB.h"
#include "Timer.h"
#include "main.h" // Local
#ifdef _WIN32
#include "OS/Win32.h"
#endif
#if defined(HAVE_WX) && HAVE_WX
#include "Debugger/Debugger.h" // for the CDebugger class
#endif
@ -391,7 +396,8 @@ bool Renderer::InitializeGL()
glDisable(GL_STENCIL_TEST);
glEnable(GL_SCISSOR_TEST);
glScissor(0, 0, (int)OpenGL_GetWidth(), (int)OpenGL_GetHeight());
// Do we really need to set this initial glScissor() value? Wont it be called all the time while the game is running?
//glScissor(0, 0, (int)OpenGL_GetWidth(), (int)OpenGL_GetHeight());
glBlendColorEXT(0, 0, 0, 0.5f);
glClearDepth(1.0f);
@ -504,6 +510,10 @@ void Renderer::ReinitView(int nNewWidth, int nNewHeight)
nNewHeight > 16 ? nNewHeight : 16);
}
//////////////////////////////////////////////////////////////////////////////////////
// Return the rendering window width and height
// ------------------------
int Renderer::GetTargetWidth()
{
return (g_Config.bStretchToFit ? 640 : (int)OpenGL_GetWidth());
@ -513,6 +523,9 @@ int Renderer::GetTargetHeight()
{
return (g_Config.bStretchToFit ? 480 : (int)OpenGL_GetHeight());
}
/////////////////////////////
void Renderer::SetRenderTarget(GLuint targ)
{
glFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT, GL_TEXTURE_RECTANGLE_ARB,
@ -639,6 +652,7 @@ void Renderer::SetBlendMode(bool forceUpdate)
s_blendMode = newval;
}
////////////////////////////////////////////////////////////////////////////////////////////
// Call browser: OpcodeDecoding.cpp ExecuteDisplayList > Decode() > LoadBPReg()
// case 0x52 > SetScissorRect()
// ---------------
@ -649,6 +663,7 @@ void Renderer::SetBlendMode(bool forceUpdate)
// Renderer::GetTargetHeight() = the fixed ini file setting
// donkopunchstania - it appears scissorBR is the bottom right pixel inside the scissor box
// therefore the width and height are (scissorBR + 1) - scissorTL
// ---------------
bool Renderer::SetScissorRect()
{
int xoff = bpmem.scissorOffset.x * 2 - 342;
@ -677,13 +692,30 @@ bool Renderer::SetScissorRect()
xoff, yoff
);*/
// Check that the coordinates are good
if (rc_right >= rc_left && rc_bottom >= rc_top)
{
/* I don't know how this works with other options so I'm limiting it to this to test it, if you want to add support for other modes
or make this solution more general please do */
if(g_Config.bStretchToFit && !g_Config.bKeepAR)
{
int WidthDifference = 640 - (int)(rc_right - rc_left);
int HeightDifference = 480 - (int)(rc_bottom - rc_top);
GLScissorX = (int)rc_left; GLScissorY = -(Renderer::GetTargetHeight() - (int)(rc_bottom));
GLScissorW = Renderer::GetTargetWidth() + WidthDifference; GLScissorH = Renderer::GetTargetHeight() + HeightDifference;
}
else
{
GLScissorX = (int)rc_left; GLScissorY = Renderer::GetTargetHeight() - (int)(rc_bottom);
GLScissorW = (int)(rc_right - rc_left); GLScissorH = (int)(rc_bottom - rc_top);
}
glScissor(
(int)rc_left, // x = 0
Renderer::GetTargetHeight() - (int)(rc_bottom), // y = 0
(int)(rc_right-rc_left), // y = 0
(int)(rc_bottom-rc_top) // y = 0
GLScissorX, // x = 0
GLScissorY, // y = 0
GLScissorW, // width = 640 for example
GLScissorH // height = 480 for example
);
return true;
}
@ -1004,7 +1036,7 @@ void Renderer::SwapBuffers()
}
#endif
// copy the rendered from to the real window
// Copy the rendered frame to the real window
OpenGL_SwapBuffers();
glClearColor(0,0,0,0);
@ -1012,7 +1044,7 @@ void Renderer::SwapBuffers()
GL_REPORT_ERRORD();
//clean out old stuff from caches
// Clean out old stuff from caches
PixelShaderCache::Cleanup();
TextureMngr::Cleanup();
@ -1136,8 +1168,9 @@ void HandleCgError(CGcontext ctx, CGerror err, void* appdata)
}
}
//////////////////////////////////////////////////////////////////////////////////////
// Called from VertexShaderManager
// ----------------------
void UpdateViewport()
{
// reversed gxsetviewport(xorig, yorig, width, height, nearz, farz)
@ -1261,10 +1294,51 @@ void UpdateViewport()
}
// -------------------------------------
// I'm limiting it to this modes to test it
if(g_Config.bStretchToFit && !g_Config.bKeepAR)
{
GLWidth = GLWidth + (GLScissorW - 640);
GLHeight = GLHeight + (GLScissorH - 480);
GLy = 0;
GLx = 0;
}
glViewport(
GLx, GLy,
GLWidth, GLHeight
);
glDepthRange((xfregs.rawViewport[5]- xfregs.rawViewport[2])/16777215.0f, xfregs.rawViewport[5]/16777215.0f);
// -----------------------------------------------------------------------
// GLDepthRange
// ------------------
double GLNear = (xfregs.rawViewport[5] - xfregs.rawViewport[2]) / 16777215.0f;
double GLFar = xfregs.rawViewport[5] / 16777215.0f;
glDepthRange(GLNear, GLFar);
// -------------------------------------
// Logging
/*
RECT RcTop, RcParent, RcChild;
HWND Child = EmuWindow::GetWnd();
HWND Parent = GetParent(Child);
HWND Top = GetParent(Parent);
GetWindowRect(Top, &RcTop);
GetWindowRect(Parent, &RcParent);
GetWindowRect(Child, &RcChild);
Console::ClearScreen();
Console::Print("----------------------------------------------------------------\n");
Console::Print("Top window: X:%03i Y:%03i Width:%03i Height:%03i\n", RcTop.left, RcTop.top, RcTop.right - RcTop.left, RcTop.bottom - RcTop.top);
Console::Print("Parent window: X:%03i Y:%03i Width:%03i Height:%03i\n", RcParent.left, RcParent.top, RcParent.right - RcParent.left, RcParent.bottom - RcParent.top);
Console::Print("Child window: X:%03i Y:%03i Width:%03i Height:%03i\n", RcChild.left, RcChild.top, RcChild.right - RcChild.left, RcChild.bottom - RcChild.top);
Console::Print("----------------------------------------------------------------\n");
Console::Print("Res. MValue: X:%f Y:%f XOffs:%f YOffs:%f\n", OpenGL_GetXmax(), OpenGL_GetYmax(), OpenGL_GetXoff(), OpenGL_GetYoff());
Console::Print("GLViewPort: X:%03i Y:%03i Width:%03i Height:%03i\n", GLx, GLy, GLWidth, GLHeight);
Console::Print("GLDepthRange: Near:%f Far:%f\n", GLNear, GLFar);
Console::Print("GLScissor: X:%03i Y:%03i Width:%03i Height:%03i\n", GLScissorX, GLScissorY, GLScissorW, GLScissorH);
Console::Print("----------------------------------------------------------------\n");
*/
}