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pcsx2/plugins/zzogl-pg/opengl/zerogs.cpp

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/* ZZ Open GL graphics plugin
* Copyright (c)2009-2010 zeydlitz@gmail.com, arcum42@gmail.com
* Based on Zerofrog's ZeroGS KOSMOS (c)2005-2008
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
//-------------------------- Includes
#include "Util.h"
#include "zerogs.h"
#include "ZZoglVB.h"
/////////////////////
// graphics resources
bool s_bTexFlush = false;
int s_nLastResolveReset = 0;
int s_nResolveCounts[30] = {0}; // resolve counts for last 30 frames
int s_nNewWidth = -1, s_nNewHeight = -1;
primInfo *prim;
////////////////////
// State parameters
int g_nDepthUpdateCount = 0;
static ZeroGSInit s_ZeroGSInit;
// does one time only initializing/destruction
void HandleGLError()
{
FUNCLOG
// check the error status of this framebuffer */
GLenum error = FB::State();
// if error != GL_FRAMEBUFFER_COMPLETE_EXT, there's an error of some sort
if (error != 0)
{
int w = 0;
int h = 0;
GLint fmt;
glGetRenderbufferParameterivEXT(GL_COLOR_ATTACHMENT0_EXT, GL_RENDERBUFFER_INTERNAL_FORMAT_EXT, &fmt);
glGetRenderbufferParameterivEXT(GL_COLOR_ATTACHMENT0_EXT, GL_RENDERBUFFER_WIDTH_EXT, &w);
glGetRenderbufferParameterivEXT(GL_COLOR_ATTACHMENT0_EXT, GL_RENDERBUFFER_HEIGHT_EXT, &h);
switch (error)
{
case GL_FRAMEBUFFER_COMPLETE_EXT:
break;
case GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT:
ZZLog::Error_Log("Error! missing a required image/buffer attachment!");
break;
case GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT_EXT:
ZZLog::Error_Log("Error! has no images/buffers attached!");
break;
// case GL_FRAMEBUFFER_INCOMPLETE_DUPLICATE_ATTACHMENT_EXT:
// ZZLog::Error_Log("Error! has an image/buffer attached in multiple locations!");
// break;
case GL_FRAMEBUFFER_INCOMPLETE_DIMENSIONS_EXT:
ZZLog::Error_Log("Error! has mismatched image/buffer dimensions!");
break;
case GL_FRAMEBUFFER_INCOMPLETE_FORMATS_EXT:
ZZLog::Error_Log("Error! colorbuffer attachments have different types!");
break;
case GL_FRAMEBUFFER_INCOMPLETE_DRAW_BUFFER_EXT:
ZZLog::Error_Log("Error! trying to draw to non-attached color buffer!");
break;
case GL_FRAMEBUFFER_INCOMPLETE_READ_BUFFER_EXT:
ZZLog::Error_Log("Error! trying to read from a non-attached color buffer!");
break;
case GL_FRAMEBUFFER_UNSUPPORTED_EXT:
ZZLog::Error_Log("Error! format is not supported by current graphics card/driver!");
break;
default:
ZZLog::Error_Log("*UNKNOWN ERROR* reported from glCheckFramebufferStatusEXT(0x%x)!", error);
break;
}
}
}
void ZZGSStateReset()
{
FUNCLOG
icurctx = -1;
for (int i = 0; i < 2; ++i)
{
vb[i].Destroy();
memset(&vb[i], 0, sizeof(VB));
vb[i].tex0.tw = 1;
vb[i].tex0.th = 1;
vb[i].scissor.x1 = 639;
vb[i].scissor.y1 = 479;
vb[i].tex0.tbw = 64;
vb[i].Init(VB_BUFFERSIZE);
}
s_RangeMngr.Clear();
g_MemTargs.Destroy();
s_RTs.Destroy();
s_DepthRTs.Destroy();
s_BitwiseTextures.Destroy();
vb[0].ictx = 0;
vb[1].ictx = 1;
}
void SetDeviceSize(int nNewWidth, int nNewHeight)
{
FUNCLOG
s_nNewWidth = nNewWidth;
s_nNewHeight = nNewHeight;
if (!(conf.fullscreen()))
{
conf.width = nNewWidth;
conf.height = nNewHeight;
}
}
void ChangeDeviceSize(int nNewWidth, int nNewHeight)
{
FUNCLOG
Size oldSize = GLWin.backbuffer;
if (!ZZCreate(nNewWidth&~7, nNewHeight&~7))
{
ZZLog::Error_Log("Failed to recreate, changing to old device.");
if (!ZZCreate(oldSize.w, oldSize.h))
{
SysMessage("Failed to create device, exiting...");
exit(0);
}
}
for (int i = 0; i < 2; ++i)
{
vb[i].bNeedFrameCheck = vb[i].bNeedZCheck = 1;
vb[i].CheckFrame(0);
}
assert(vb[0].pBufferData != NULL && vb[1].pBufferData != NULL);
}
void SetAA(int mode)
{
FUNCLOG
float f = 1.0f;
// need to flush all targets
s_RTs.ResolveAll();
s_RTs.Destroy();
s_DepthRTs.ResolveAll();
s_DepthRTs.Destroy();
AA.x = AA.y = 0; // This is code for x0, x2, x4, x8 and x16 anti-aliasing.
if (mode > 0)
{
// ( 1, 0 ) ; ( 1, 1 ) ; ( 2, 1 ) ; ( 2, 2 )
// it's used as a binary shift, so x >> AA.x, y >> AA.y
AA.x = (mode + 1) / 2;
AA.y = mode / 2;
f = 2.0f;
}
memset(s_nResolveCounts, 0, sizeof(s_nResolveCounts));
s_nLastResolveReset = 0;
vb[0].prndr = NULL;
vb[0].pdepth = NULL;
vb[1].prndr = NULL;
vb[1].pdepth = NULL;
vb[0].bNeedFrameCheck = vb[0].bNeedZCheck = 1;
vb[1].bNeedFrameCheck = vb[1].bNeedZCheck = 1;
glPointSize(f);
}
//void RenderCustom(float fAlpha)
//{
// FUNCLOG
// GL_REPORT_ERROR();
//
// fAlpha = 1;
// FB::Unbind(); // switch to the backbuffer
//
// DisableAllgl() ;
// SetShaderCaller("RenderCustom");
//
// glViewport(0, 0, GLWin.backbuffer.w, GLWin.backbuffer.h);
//
// // play custom animation
// glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);
//
// // tex coords
// float4 v = float4(1 / 32767.0f, 1 / 32767.0f, 0, 0);
// ZZshSetParameter4fv(pvsBitBlt.prog, pvsBitBlt.sBitBltPos, v, "g_fBitBltPos");
// v.x = (float)nLogoWidth;
// v.y = (float)nLogoHeight;
// ZZshSetParameter4fv(pvsBitBlt.prog, pvsBitBlt.sBitBltTex, v, "g_fBitBltTex");
//
// v.x = v.y = v.z = v.w = fAlpha;
// ZZshSetParameter4fv(ppsBaseTexture.prog, ppsBaseTexture.sOneColor, v, "g_fOneColor");
//
// if (conf.wireframe()) glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
//
// // inside vhDCb[0]'s target area, so render that region only
// ZZshGLSetTextureParameter(ppsBaseTexture.prog, ppsBaseTexture.sFinal, ptexLogo, "Logo");
// glBindBuffer(GL_ARRAY_BUFFER, vboRect);
//
// SET_STREAM();
//
// ZZshSetVertexShader(pvsBitBlt.prog);
// ZZshSetPixelShader(ppsBaseTexture.prog);
// DrawTriangleArray();
//
// // restore
// if (conf.wireframe()) glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
//
// ProcessMessages();
//
// GLWin.SwapGLBuffers();
//
// glEnable(GL_SCISSOR_TEST);
// glEnable(GL_STENCIL_TEST);
//
// vb[0].bSyncVars = 0;
// vb[1].bSyncVars = 0;
//
// GL_REPORT_ERROR();
//}
//////////////////////////
// Internal Definitions //
//////////////////////////
__forceinline void SetFogColor(float4 v)
{
FUNCLOG
SetShaderCaller("SetFogColor");
ZZshSetParameter4fv(g_fparamFogColor, v, "g_fParamFogColor");
}
__forceinline void SetFogColor(u32 fog)
{
FUNCLOG
gs.fogcol = fog;
FlushBoth();
float4 v;
// set it immediately
v.SetColor(gs.fogcol);
SetFogColor(v);
}
__forceinline void SetFogColor(GIFRegFOGCOL* fog)
{
FUNCLOG
float4 v;
v.x = fog->FCR / 255.0f;
v.y = fog->FCG / 255.0f;
v.z = fog->FCB / 255.0f;
SetFogColor(v);
}
void ExtWrite()
{
FUNCLOG
ZZLog::Warn_Log("A hollow voice says 'EXTWRITE'! Nothing happens.");
// use local DISPFB, EXTDATA, EXTBUF, and PMODE
// int bpp, start, end;
// tex0Info texframe;
// bpp = 4;
// if( texframe.psm == PSMT16S ) bpp = 3;
// else if (PSMT_ISHALF(texframe.psm)) bpp = 2;
//
// // get the start and end addresses of the buffer
// GetRectMemAddressZero(start, end, texframe.psm, texframe.tw, texframe.th, texframe.tbp0, texframe.tbw);
}
////////////
// Caches //
////////////
// case 0: return false;
// case 1: break;
// case 2: m_CBP[0] = TEX0.CBP; break;
// case 3: m_CBP[1] = TEX0.CBP; break;
// case 4: if(m_CBP[0] == TEX0.CBP) return false; m_CBP[0] = TEX0.CBP; break;
// case 5: if(m_CBP[1] == TEX0.CBP) return false; m_CBP[1] = TEX0.CBP; break;
// case 6: ASSERT(0); return false; // ffx2 menu
// case 7: ASSERT(0); return false;
// default: __assume(0);
// cld state:
// 000 - clut data is not loaded; data in the temp buffer is stored
// 001 - clut data is always loaded.
// 010 - clut data is always loaded; cbp0 = cbp.
// 011 - clut data is always loadedl cbp1 = cbp.
// 100 - cbp0 is compared with cbp. if different, clut data is loaded.
// 101 - cbp1 is compared with cbp. if different, clut data is loaded.
// GSdx sets cbp0 & cbp1 when checking for clut changes. ZeroGS sets them in texClutWrite.
bool CheckChangeInClut(u32 highdword, u32 psm)
{
FUNCLOG
int cld = ZZOglGet_cld_TexBits(highdword);
int cbp = ZZOglGet_cbp_TexBits(highdword);
// processing the CLUT after tex0/2 are written
//ZZLog::Error_Log("high == 0x%x; cld == %d", highdword, cld);
switch (cld)
{
case 0:
return false;
case 1:
break;
case 2:
break;
case 3:
break;
case 4:
if (gs.cbp[0] == cbp) return false;
break;
case 5:
if (gs.cbp[1] == cbp) return false;
break;
default:
break;
}
// Compare the cache with current memory
// CSM2 is not supported
if (ZZOglGet_csm_TexBits(highdword))
return true;
int cpsm = ZZOglGet_cpsm_TexBits(highdword);
int csa = ZZOglGet_csa_TexBits(highdword);
int entries = PSMT_IS8CLUT(psm) ? 256 : 16;
u8* GSMem = g_pbyGSMemory + cbp * 256;
if (PSMT_IS32BIT(cpsm))
return Cmp_ClutBuffer_GSMem<u32>((u32*)GSMem, csa, entries*4);
else {
// Mana Khemia triggers this.
//ZZLog::Error_Log("16 bit clut not supported.");
return Cmp_ClutBuffer_GSMem<u16>((u16*)GSMem, csa, entries*2);
}
}
void texClutWrite(int ctx)
{
FUNCLOG
s_bTexFlush = false;
tex0Info& tex0 = vb[ctx].tex0;
assert(PSMT_ISCLUT(tex0.psm));
// processing the CLUT after tex0/2 are written
switch (tex0.cld)
{
case 0:
return;
case 1:
break; // tex0.cld is usually 1.
case 2:
gs.cbp[0] = tex0.cbp;
break;
case 3:
gs.cbp[1] = tex0.cbp;
break;
case 4:
if (gs.cbp[0] == tex0.cbp) return;
gs.cbp[0] = tex0.cbp;
break;
case 5:
if (gs.cbp[1] == tex0.cbp) return;
gs.cbp[1] = tex0.cbp;
break;
default: //ZZLog::Debug_Log("cld isn't 0-5!");
break;
}
Flush(!ctx);
// Write the memory to clut buffer
GSMem_to_ClutBuffer(tex0);
}
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