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pcsx2/plugins/GSdx/GSRendererOGL.cpp

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/*
* Copyright (C) 2011-2011 Gregory hainaut
* Copyright (C) 2007-2009 Gabest
*
* 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, 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 GNU Make; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA USA.
* http://www.gnu.org/copyleft/gpl.html
*
*/
#include "stdafx.h"
#include "GSRendererOGL.h"
#include "GSRenderer.h"
GSRendererOGL::GSRendererOGL()
: GSRendererHW(new GSTextureCacheOGL(this))
{
m_logz = !!theApp.GetConfig("logz", 1);
m_fba = !!theApp.GetConfig("fba", 1);
UserHacks_AlphaHack = !!theApp.GetConfig("UserHacks_AlphaHack", 0) && !!theApp.GetConfig("UserHacks", 0);
UserHacks_AlphaStencil = !!theApp.GetConfig("UserHacks_AlphaStencil", 0) && !!theApp.GetConfig("UserHacks", 0);
UserHacks_DateGL4 = !!theApp.GetConfig("UserHacks_DateGL4", 0);
m_pixelcenter = GSVector2(-0.5f, -0.5f);
UserHacks_TCOffset = !!theApp.GetConfig("UserHacks", 0) ? theApp.GetConfig("UserHacks_TCOffset", 0) : 0;
UserHacks_TCO_x = (UserHacks_TCOffset & 0xFFFF) / -1000.0f;
UserHacks_TCO_y = ((UserHacks_TCOffset >> 16) & 0xFFFF) / -1000.0f;
}
bool GSRendererOGL::CreateDevice(GSDevice* dev)
{
if(!GSRenderer::CreateDevice(dev))
return false;
#ifdef ENABLE_GLES
fprintf(stderr, "FIXME Creation of FBA dss/bs state is not yet implemented\n");
#endif
return true;
}
void GSRendererOGL::EmulateGS()
{
if (m_vt.m_primclass != GS_SPRITE_CLASS) return;
// each sprite converted to quad needs twice the space
while(m_vertex.tail * 2 > m_vertex.maxcount)
{
GrowVertexBuffer();
}
// assume vertices are tightly packed and sequentially indexed (it should be the case)
if(m_vertex.next >= 2)
{
size_t count = m_vertex.next;
int i = (int)count * 2 - 4;
GSVertex* s = &m_vertex.buff[count - 2];
GSVertex* q = &m_vertex.buff[count * 2 - 4];
uint32* RESTRICT index = &m_index.buff[count * 3 - 6];
for(; i >= 0; i -= 4, s -= 2, q -= 4, index -= 6)
{
GSVertex v0 = s[0];
GSVertex v1 = s[1];
v0.RGBAQ = v1.RGBAQ;
v0.XYZ.Z = v1.XYZ.Z;
v0.FOG = v1.FOG;
q[0] = v0;
q[3] = v1;
// swap x, s, u
uint16 x = v0.XYZ.X;
v0.XYZ.X = v1.XYZ.X;
v1.XYZ.X = x;
float s = v0.ST.S;
v0.ST.S = v1.ST.S;
v1.ST.S = s;
uint16 u = v0.U;
v0.U = v1.U;
v1.U = u;
q[1] = v0;
q[2] = v1;
index[0] = i + 0;
index[1] = i + 1;
index[2] = i + 2;
index[3] = i + 1;
index[4] = i + 2;
index[5] = i + 3;
}
m_vertex.head = m_vertex.tail = m_vertex.next = count * 2;
m_index.tail = count * 3;
}
}
void GSRendererOGL::SetupIA()
{
GSDeviceOGL* dev = (GSDeviceOGL*)m_dev;
if (!GLLoader::found_geometry_shader)
EmulateGS();
void* ptr = NULL;
if(UserHacks_WildHack && !isPackedUV_HackFlag) {
// FIXME: why not put it on the Vertex shader
if(dev->IAMapVertexBuffer(&ptr, sizeof(GSVertex), m_vertex.next))
{
GSVector4i::storent(ptr, m_vertex.buff, sizeof(GSVertex) * m_vertex.next);
GSVertex* RESTRICT d = (GSVertex*)ptr;
for(unsigned int i = 0; i < m_vertex.next; i++)
{
if(PRIM->TME && PRIM->FST) d[i].UV &= 0x3FEF3FEF;
}
dev->IAUnmapVertexBuffer();
}
} else {
// By default use the common path (in case it can be made faster)
dev->IASetVertexBuffer(m_vertex.buff, m_vertex.next);
}
dev->IASetIndexBuffer(m_index.buff, m_index.tail);
GLenum t = 0;
switch(m_vt.m_primclass)
{
case GS_POINT_CLASS:
t = GL_POINTS;
break;
case GS_LINE_CLASS:
t = GL_LINES;
break;
case GS_SPRITE_CLASS:
if (GLLoader::found_geometry_shader)
t = GL_LINES;
else
t = GL_TRIANGLES;
break;
case GS_TRIANGLE_CLASS:
t = GL_TRIANGLES;
break;
default:
__assume(0);
}
dev->IASetPrimitiveTopology(t);
}
void GSRendererOGL::DrawPrims(GSTexture* rt, GSTexture* ds, GSTextureCache::Source* tex)
{
GSDrawingEnvironment& env = m_env;
GSDrawingContext* context = m_context;
const GSVector2i& rtsize = rt->GetSize();
const GSVector2& rtscale = rt->GetScale();
bool DATE = m_context->TEST.DATE && context->FRAME.PSM != PSM_PSMCT24;
bool advance_DATE = false;
ASSERT(m_dev != NULL);
GSDeviceOGL* dev = (GSDeviceOGL*)m_dev;
// Blend
GSDeviceOGL::OMBlendSelector om_bsel;
if(!IsOpaque())
{
om_bsel.abe = PRIM->ABE || PRIM->AA1 && m_vt.m_primclass == GS_LINE_CLASS;
om_bsel.a = context->ALPHA.A;
om_bsel.b = context->ALPHA.B;
om_bsel.c = context->ALPHA.C;
om_bsel.d = context->ALPHA.D;
if(env.PABE.PABE)
{
if(om_bsel.a == 0 && om_bsel.b == 1 && om_bsel.c == 0 && om_bsel.d == 1)
{
// this works because with PABE alpha blending is on when alpha >= 0x80, but since the pixel shader
// cannot output anything over 0x80 (== 1.0) blending with 0x80 or turning it off gives the same result
om_bsel.abe = 0;
}
else
{
//Breath of Fire Dragon Quarter triggers this in battles. Graphics are fine though.
//ASSERT(0);
}
}
}
om_bsel.wrgba = ~GSVector4i::load((int)context->FRAME.FBMSK).eq8(GSVector4i::xffffffff()).mask();
if (DATE && om_bsel.wa && (!context->TEST.ATE || context->TEST.ATST == ATST_ALWAYS)) {
advance_DATE = GLLoader::found_GL_ARB_shader_image_load_store && !UserHacks_AlphaStencil;
}
// DATE
if(DATE)
{
// Note at the moment OGL has always stencil. Rt can be disabled
if(dev->HasStencil())
{
GSVector4 s = GSVector4(rtscale.x / rtsize.x, rtscale.y / rtsize.y);
GSVector4 o = GSVector4(-1.0f, 1.0f);
GSVector4 src = ((m_vt.m_min.p.xyxy(m_vt.m_max.p) + o.xxyy()) * s.xyxy()).sat(o.zzyy());
GSVector4 dst = src * 2.0f + o.xxxx();
GSVertexPT1 vertices[] =
{
{GSVector4(dst.x, dst.y, 0.0f, 0.0f), GSVector2(src.x, src.y)},
{GSVector4(dst.z, dst.y, 0.0f, 0.0f), GSVector2(src.z, src.y)},
{GSVector4(dst.x, dst.w, 0.0f, 0.0f), GSVector2(src.x, src.w)},
{GSVector4(dst.z, dst.w, 0.0f, 0.0f), GSVector2(src.z, src.w)},
};
dev->SetupDATE(rt, ds, vertices, m_context->TEST.DATM);
}
// Must be done here to avoid any GL state pertubation (clear function...)
// Create an r32ui image that will containt primitive ID
if (advance_DATE)
dev->InitPrimDateTexture(rtsize.x, rtsize.y);
}
//
dev->BeginScene();
// om
GSDeviceOGL::OMDepthStencilSelector om_dssel;
if(context->TEST.ZTE)
{
om_dssel.ztst = context->TEST.ZTST;
om_dssel.zwe = !context->ZBUF.ZMSK;
}
else
{
om_dssel.ztst = ZTST_ALWAYS;
}
if(m_fba)
{
om_dssel.fba = context->FBA.FBA;
}
// vs
GSDeviceOGL::VSSelector vs_sel;
vs_sel.tme = PRIM->TME;
vs_sel.fst = PRIM->FST;
vs_sel.logz = m_logz ? 1 : 0;
// The real GS appears to do no masking based on the Z buffer format and writing larger Z values
// than the buffer supports seems to be an error condition on the real GS, causing it to crash.
// We are probably receiving bad coordinates from VU1 in these cases.
if(om_dssel.ztst >= ZTST_ALWAYS && om_dssel.zwe)
{
if(context->ZBUF.PSM == PSM_PSMZ24)
{
if(m_vt.m_max.p.z > 0xffffff)
{
ASSERT(m_vt.m_min.p.z > 0xffffff);
// Fixme :Following conditional fixes some dialog frame in Wild Arms 3, but may not be what was intended.
if (m_vt.m_min.p.z > 0xffffff)
{
vs_sel.bppz = 1;
om_dssel.ztst = ZTST_ALWAYS;
}
}
}
else if(context->ZBUF.PSM == PSM_PSMZ16 || context->ZBUF.PSM == PSM_PSMZ16S)
{
if(m_vt.m_max.p.z > 0xffff)
{
ASSERT(m_vt.m_min.p.z > 0xffff); // sfex capcom logo
// Fixme : Same as above, I guess.
if (m_vt.m_min.p.z > 0xffff)
{
vs_sel.bppz = 2;
om_dssel.ztst = ZTST_ALWAYS;
}
}
}
}
// FIXME Opengl support half pixel center (as dx10). Code could be easier!!!
GSDeviceOGL::VSConstantBuffer vs_cb;
float sx = 2.0f * rtscale.x / (rtsize.x << 4);
float sy = 2.0f * rtscale.y / (rtsize.y << 4);
float ox = (float)(int)context->XYOFFSET.OFX;
float oy = (float)(int)context->XYOFFSET.OFY;
float ox2 = -1.0f / rtsize.x;
float oy2 = -1.0f / rtsize.y;
//This hack subtracts around half a pixel from OFX and OFY. (Cannot do this directly,
//because DX10 and DX9 have a different pixel center.)
//
//The resulting shifted output aligns better with common blending / corona / blurring effects,
//but introduces a few bad pixels on the edges.
if(rt->LikelyOffset)
{
ox2 *= rt->OffsetHack_modx;
oy2 *= rt->OffsetHack_mody;
}
// Note: DX does y *= -1.0
vs_cb.Vertex_Scale_Offset = GSVector4(sx, sy, ox * sx + ox2 + 1, oy * sy + oy2 + 1);
// END of FIXME
// ps
GSDeviceOGL::PSSelector ps_sel;
GSDeviceOGL::PSSamplerSelector ps_ssel;
GSDeviceOGL::PSConstantBuffer ps_cb;
// GS_SPRITE_CLASS are already flat (either by CPU or the GS)
ps_sel.iip = (m_vt.m_primclass == GS_SPRITE_CLASS) ? 1 : PRIM->IIP;
if(DATE)
{
om_dssel.date = 1;
if (advance_DATE)
ps_sel.date = 1 + context->TEST.DATM;
}
if(env.COLCLAMP.CLAMP == 0 && /* hack */ !tex && PRIM->PRIM != GS_POINTLIST)
{
ps_sel.colclip = 1;
}
ps_sel.clr1 = om_bsel.IsCLR1();
ps_sel.fba = context->FBA.FBA;
ps_sel.aout = context->FRAME.PSM == PSM_PSMCT16 || context->FRAME.PSM == PSM_PSMCT16S || (context->FRAME.FBMSK & 0xff000000) == 0x7f000000 ? 1 : 0;
if(UserHacks_AlphaHack) ps_sel.aout = 1;
if(PRIM->FGE)
{
ps_sel.fog = 1;
ps_cb.FogColor_AREF = GSVector4::rgba32(env.FOGCOL.u32[0]) / 255;
}
if(context->TEST.ATE)
ps_sel.atst = context->TEST.ATST;
else
ps_sel.atst = ATST_ALWAYS;
if (context->TEST.ATE && context->TEST.ATST > 1)
ps_cb.FogColor_AREF.a = (float)context->TEST.AREF;
// Destination alpha pseudo stencil hack: use a stencil operation combined with an alpha test
// to only draw pixels which would cause the destination alpha test to fail in the future once.
// Unfortunately this also means only drawing those pixels at all, which is why this is a hack.
// The interaction with FBA in D3D9 is probably less than ideal.
if (UserHacks_AlphaStencil && DATE && dev->HasStencil() && om_bsel.wa && (!context->TEST.ATE || context->TEST.ATST == ATST_ALWAYS))
{
if (!context->FBA.FBA)
{
if (context->TEST.DATM == 0)
ps_sel.atst = ATST_GEQUAL; // >=
else
ps_sel.atst = ATST_LESS; // <
ps_cb.FogColor_AREF.a = (float)0x80;
}
if (!(context->FBA.FBA && context->TEST.DATM == 1))
om_dssel.alpha_stencil = 1;
}
// By default don't use texture
ps_sel.tfx = 4;
if(tex)
{
const GSLocalMemory::psm_t &psm = GSLocalMemory::m_psm[context->TEX0.PSM];
const GSLocalMemory::psm_t &cpsm = psm.pal > 0 ? GSLocalMemory::m_psm[context->TEX0.CPSM] : psm;
bool bilinear = m_filter == 2 ? m_vt.IsLinear() : m_filter != 0;
bool simple_sample = !tex->m_palette && cpsm.fmt == 0 && context->CLAMP.WMS < 3 && context->CLAMP.WMT < 3;
ps_sel.wms = context->CLAMP.WMS;
ps_sel.wmt = context->CLAMP.WMT;
ps_sel.fmt = tex->m_palette ? cpsm.fmt | 4 : cpsm.fmt;
ps_sel.aem = env.TEXA.AEM;
ps_sel.tfx = context->TEX0.TFX;
ps_sel.tcc = context->TEX0.TCC;
ps_sel.ltf = bilinear && !simple_sample;
ps_sel.spritehack = tex->m_spritehack_t;
// FIXME the ati is currently disabled on the shader. I need to find a .gs to test that we got same
// bug on opengl
// FIXME for the moment disable it on subroutine (it will kill my perf for nothings)
ps_sel.point_sampler = !(bilinear && simple_sample) && !GLLoader::found_GL_ARB_shader_subroutine;
int w = tex->m_texture->GetWidth();
int h = tex->m_texture->GetHeight();
int tw = (int)(1 << context->TEX0.TW);
int th = (int)(1 << context->TEX0.TH);
GSVector4 WH(tw, th, w, h);
if(PRIM->FST)
{
vs_cb.TextureScale = GSVector4(1.0f / 16) / WH.xyxy();
//Maybe better?
//vs_cb.TextureScale = GSVector4(1.0f / 16) * GSVector4(tex->m_texture->GetScale()).xyxy() / WH.zwzw();
ps_sel.fst = 1;
}
ps_cb.WH = WH;
ps_cb.HalfTexel = GSVector4(-0.5f, 0.5f).xxyy() / WH.zwzw();
ps_cb.MskFix = GSVector4i(context->CLAMP.MINU, context->CLAMP.MINV, context->CLAMP.MAXU, context->CLAMP.MAXV);
// TC Offset Hack
ps_sel.tcoffsethack = !!UserHacks_TCOffset;
ps_cb.TC_OffsetHack = GSVector4(UserHacks_TCO_x, UserHacks_TCO_y).xyxy() / WH.xyxy();
GSVector4 clamp(ps_cb.MskFix);
GSVector4 ta(env.TEXA & GSVector4i::x000000ff());
ps_cb.MinMax = clamp / WH.xyxy();
ps_cb.MinF_TA = (clamp + 0.5f).xyxy(ta) / WH.xyxy(GSVector4(255, 255));
ps_ssel.tau = (context->CLAMP.WMS + 3) >> 1;
ps_ssel.tav = (context->CLAMP.WMT + 3) >> 1;
ps_ssel.ltf = bilinear && simple_sample;
// Setup Texture ressources
if (GLLoader::found_GL_ARB_bindless_texture) {
GLuint64 handle[2];
handle[0] = tex->m_texture ? static_cast<GSTextureOGL*>(tex->m_texture)->GetHandle(dev->GetSamplerID(ps_ssel)): 0;
handle[1] = tex->m_palette ? static_cast<GSTextureOGL*>(tex->m_palette)->GetHandle(dev->GetPaletteSamplerID()): 0;
dev->m_shader->PS_ressources(handle);
} else {
dev->SetupSampler(ps_ssel);
if (tex->m_palette) {
GLuint textures[2] = {static_cast<GSTextureOGL*>(tex->m_texture)->GetID(), static_cast<GSTextureOGL*>(tex->m_palette)->GetID()};
dev->PSSetShaderResources(textures);
} else if (tex->m_texture) {
// Only main texture
dev->PSSetShaderResource(static_cast<GSTextureOGL*>(tex->m_texture)->GetID());
}
}
}
// WARNING: setup of the program must be done first. So you can setup
// 1/ subroutine uniform
// 2/ bindless texture uniform
// 3/ others uniform?
dev->SetupVS(vs_sel);
dev->SetupGS(m_vt.m_primclass == GS_SPRITE_CLASS);
dev->SetupPS(ps_sel);
// rs
GSVector4i scissor = GSVector4i(GSVector4(rtscale).xyxy() * context->scissor.in).rintersect(GSVector4i(rtsize).zwxy());
dev->OMSetRenderTargets(rt, ds, &scissor);
uint8 afix = context->ALPHA.FIX;
SetupIA();
dev->SetupOM(om_dssel, om_bsel, afix);
dev->SetupCB(&vs_cb, &ps_cb);
if (advance_DATE) {
// Create an r32i image that will contain primitive ID
// Note: do it at the beginning because the clean will dirty the FBO state
//dev->InitPrimDateTexture(rtsize.x, rtsize.y);
// Don't write anything on the color buffer
dev->OMSetWriteBuffer(GL_NONE);
// Compute primitiveID max that pass the date test
dev->DrawIndexedPrimitive();
// Ask PS to discard shader above the primitiveID max
dev->OMSetWriteBuffer();
ps_sel.date = 3;
dev->SetupPS(ps_sel);
// Be sure that first pass is finished !
#ifndef ENABLE_GLES
if (!UserHacks_DateGL4)
dev->Barrier(GL_SHADER_IMAGE_ACCESS_BARRIER_BIT);
#endif
}
if(context->TEST.DoFirstPass())
{
dev->DrawIndexedPrimitive();
if (env.COLCLAMP.CLAMP == 0 && /* hack */ !tex && PRIM->PRIM != GS_POINTLIST)
{
GSDeviceOGL::OMBlendSelector om_bselneg(om_bsel);
GSDeviceOGL::PSSelector ps_selneg(ps_sel);
om_bselneg.negative = 1;
ps_selneg.colclip = 2;
dev->SetupOM(om_dssel, om_bselneg, afix);
dev->SetupPS(ps_selneg);
dev->DrawIndexedPrimitive();
dev->SetupOM(om_dssel, om_bsel, afix);
}
}
if(context->TEST.DoSecondPass())
{
ASSERT(!env.PABE.PABE);
static const uint32 iatst[] = {1, 0, 5, 6, 7, 2, 3, 4};
ps_sel.atst = iatst[ps_sel.atst];
dev->SetupPS(ps_sel);
bool z = om_dssel.zwe;
bool r = om_bsel.wr;
bool g = om_bsel.wg;
bool b = om_bsel.wb;
bool a = om_bsel.wa;
switch(context->TEST.AFAIL)
{
case AFAIL_KEEP: z = r = g = b = a = false; break; // none
case AFAIL_FB_ONLY: z = false; break; // rgba
case AFAIL_ZB_ONLY: r = g = b = a = false; break; // z
case AFAIL_RGB_ONLY: z = a = false; break; // rgb
default: __assume(0);
}
if(z || r || g || b || a)
{
om_dssel.zwe = z;
om_bsel.wr = r;
om_bsel.wg = g;
om_bsel.wb = b;
om_bsel.wa = a;
dev->SetupOM(om_dssel, om_bsel, afix);
dev->DrawIndexedPrimitive();
if (env.COLCLAMP.CLAMP == 0 && /* hack */ !tex && PRIM->PRIM != GS_POINTLIST)
{
GSDeviceOGL::OMBlendSelector om_bselneg(om_bsel);
GSDeviceOGL::PSSelector ps_selneg(ps_sel);
om_bselneg.negative = 1;
ps_selneg.colclip = 2;
dev->SetupOM(om_dssel, om_bselneg, afix);
dev->SetupPS(ps_selneg);
dev->DrawIndexedPrimitive();
}
}
}
if (advance_DATE)
dev->RecycleDateTexture();
dev->EndScene();
if(om_dssel.fba) UpdateFBA(rt);
}
void GSRendererOGL::UpdateFBA(GSTexture* rt)
{
#ifdef ENABLE_GLES
#ifdef _DEBUG
fprintf(stderr, "FIXME UpdateFBA not yet implemented\n");
#endif
#endif
}
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