/* * 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_accurate_date = theApp.GetConfig("accurate_date", 0); m_sw_blending = theApp.GetConfig("accurate_blending_unit", 1); // Hope nothing requires too many draw calls. m_drawlist.reserve(2048); UserHacks_TCOffset = theApp.GetConfig("UserHacks_TCOffset", 0); UserHacks_TCO_x = (UserHacks_TCOffset & 0xFFFF) / -1000.0f; UserHacks_TCO_y = ((UserHacks_TCOffset >> 16) & 0xFFFF) / -1000.0f; UserHacks_safe_fbmask = theApp.GetConfig("UserHacks_safe_fbmask", false); m_prim_overlap = PRIM_OVERLAP_UNKNOW; if (!theApp.GetConfig("UserHacks", 0)) { UserHacks_TCOffset = 0; UserHacks_TCO_x = 0; UserHacks_TCO_y = 0; UserHacks_safe_fbmask = false; } } bool GSRendererOGL::CreateDevice(GSDevice* dev) { if (!GSRenderer::CreateDevice(dev)) return false; // No sw blending if not supported (Intel GPU) if (!GLLoader::found_GL_ARB_texture_barrier) { fprintf(stderr, "Error GL_ARB_texture_barrier is not supported by your driver. You can't emulate correctly the GS blending unit! Sorry!\n"); m_accurate_date = false; m_sw_blending = 0; } 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(); 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); } bool GSRendererOGL::EmulateTextureShuffleAndFbmask(GSDeviceOGL::PSSelector& ps_sel, GSDeviceOGL::OMColorMaskSelector& om_csel) { bool require_barrier = false; if (m_texture_shuffle) { ps_sel.shuffle = 1; ps_sel.dfmt = 0; const GIFRegXYOFFSET& o = m_context->XYOFFSET; GSVertex* v = &m_vertex.buff[0]; size_t count = m_vertex.next; // vertex position is 8 to 16 pixels, therefore it is the 16-31 bits of the colors int pos = (v[0].XYZ.X - o.OFX) & 0xFF; bool write_ba = (pos > 112 && pos < 136); // Read texture is 8 to 16 pixels (same as above) float tw = (float)(1u << m_context->TEX0.TW); int tex_pos = (PRIM->FST) ? v[0].U : tw * v[0].ST.S; tex_pos &= 0xFF; ps_sel.read_ba = (tex_pos > 112 && tex_pos < 144); // Convert the vertex info to a 32 bits color format equivalent if (PRIM->FST) { GL_INS("First vertex is P: %d => %d T: %d => %d", v[0].XYZ.X, v[1].XYZ.X, v[0].U, v[1].U); for(size_t i = 0; i < count; i += 2) { if (write_ba) v[i].XYZ.X -= 128u; else v[i+1].XYZ.X += 128u; if (ps_sel.read_ba) v[i].U -= 128u; else v[i+1].U += 128u; // Height is too big (2x). int tex_offset = v[i].V & 0xF; GSVector4i offset(o.OFY, tex_offset, o.OFY, tex_offset); GSVector4i tmp(v[i].XYZ.Y, v[i].V, v[i+1].XYZ.Y, v[i+1].V); tmp = GSVector4i(tmp - offset).srl32(1) + offset; v[i].XYZ.Y = tmp.x; v[i].V = tmp.y; v[i+1].XYZ.Y = tmp.z; v[i+1].V = tmp.w; } } else { const float offset_8pix = 8.0f / tw; GL_INS("First vertex is P: %d => %d T: %f => %f (offset %f)", v[0].XYZ.X, v[1].XYZ.X, v[0].ST.S, v[1].ST.S, offset_8pix); for(size_t i = 0; i < count; i += 2) { if (write_ba) v[i].XYZ.X -= 128u; else v[i+1].XYZ.X += 128u; if (ps_sel.read_ba) v[i].ST.S -= offset_8pix; else v[i+1].ST.S += offset_8pix; // Height is too big (2x). GSVector4i offset(o.OFY, o.OFY); GSVector4i tmp(v[i].XYZ.Y, v[i+1].XYZ.Y); tmp = GSVector4i(tmp - offset).srl32(1) + offset; //fprintf(stderr, "Before %d, After %d\n", v[i+1].XYZ.Y, tmp.y); v[i].XYZ.Y = tmp.x; v[i].ST.T /= 2.0f; v[i+1].XYZ.Y = tmp.y; v[i+1].ST.T /= 2.0f; } } // If date is enabled you need to test the green channel instead of the // alpha channel. Only enable this code in DATE mode to reduce the number // of shader. ps_sel.write_rg = !write_ba && m_context->TEST.DATE; // Please bang my head against the wall! // 1/ Reduce the frame mask to a 16 bit format const uint32& m = m_context->FRAME.FBMSK; uint32 fbmask = ((m >> 3) & 0x1F) | ((m >> 6) & 0x3E0) | ((m >> 9) & 0x7C00) | ((m >> 16) & 0x8000); // FIXME GSVector will be nice here uint8 rg_mask = fbmask & 0xFF; uint8 ba_mask = (fbmask >> 8) & 0xFF; om_csel.wrgba = 0; // 2 Select the new mask (Please someone put SSE here) if (rg_mask != 0xFF) { if (write_ba) { GL_INS("Color shuffle %s => B", ps_sel.read_ba ? "B" : "R"); om_csel.wb = 1; } else { GL_INS("Color shuffle %s => R", ps_sel.read_ba ? "B" : "R"); om_csel.wr = 1; } if (rg_mask) ps_sel.fbmask = 1; } if (ba_mask != 0xFF) { if (write_ba) { GL_INS("Color shuffle %s => A", ps_sel.read_ba ? "A" : "G"); om_csel.wa = 1; } else { GL_INS("Color shuffle %s => G", ps_sel.read_ba ? "A" : "G"); om_csel.wg = 1; } if (ba_mask) ps_sel.fbmask = 1; } if (ps_sel.fbmask && m_sw_blending) { GL_INS("FBMASK SW emulated fb_mask:%x on tex shuffle", fbmask); ps_cb.FbMask.r = rg_mask; ps_cb.FbMask.g = rg_mask; ps_cb.FbMask.b = ba_mask; ps_cb.FbMask.a = ba_mask; require_barrier = true; } else { ps_sel.fbmask = 0; } } else { ps_sel.dfmt = GSLocalMemory::m_psm[m_context->FRAME.PSM].fmt; GSVector4i fbmask_v = GSVector4i::load((int)m_context->FRAME.FBMSK); int ff_fbmask = fbmask_v.eq8(GSVector4i::xffffffff()).mask(); int zero_fbmask = fbmask_v.eq8(GSVector4i::zero()).mask(); om_csel.wrgba = ~ff_fbmask; // Enable channel if at least 1 bit is 0 ps_sel.fbmask = m_sw_blending && (~ff_fbmask & ~zero_fbmask & 0xF); if (ps_sel.fbmask) { ps_cb.FbMask = fbmask_v.u8to32(); // Only alpha is special here, I think we can take a very unsafe shortcut // Alpha isn't blended on the GS but directly copyied into the RT. // // Behavior is clearly undefined however there is a high probability that // it will work. Masked bit will be constant and normally the same everywhere // RT/FS output/Cached value. // // Just to be sure let's add a new safe hack for unsafe access :) // // Here the GL spec quote to emphasize the unexpected behavior. /* - If a texel has been written, then in order to safely read the result a texel fetch must be in a subsequent Draw separated by the command void TextureBarrier(void); TextureBarrier() will guarantee that writes have completed and caches have been invalidated before subsequent Draws are executed. */ if (!(~ff_fbmask & ~zero_fbmask & 0x7) && !UserHacks_safe_fbmask) { GL_INS("FBMASK Unsafe SW emulated fb_mask:%x on %d bits format", m_context->FRAME.FBMSK, (GSLocalMemory::m_psm[m_context->FRAME.PSM].fmt == 2) ? 16 : 32); m_unsafe_fbmask = true; require_barrier = false; } else { // The safe and accurate path (but slow) GL_INS("FBMASK SW emulated fb_mask:%x on %d bits format", m_context->FRAME.FBMSK, (GSLocalMemory::m_psm[m_context->FRAME.PSM].fmt == 2) ? 16 : 32); require_barrier = true; } } } return require_barrier; } bool GSRendererOGL::EmulateBlending(GSDeviceOGL::PSSelector& ps_sel, bool DATE_GL42) { GSDeviceOGL* dev = (GSDeviceOGL*)m_dev; const GIFRegALPHA& ALPHA = m_context->ALPHA; bool require_barrier = false; bool sw_blending = false; // No blending so early exit if (!(PRIM->ABE || PRIM->AA1 && m_vt.m_primclass == GS_LINE_CLASS)) { #ifdef ENABLE_OGL_DEBUG if (m_env.PABE.PABE) { GL_INS("!!! ENV PABE without ABE !!!"); } #endif dev->OMSetBlendState(); return false; } if (m_env.PABE.PABE) { GL_INS("!!! ENV PABE not supported !!!"); if (m_sw_blending >= ACC_BLEND_CCLIP_DALPHA) { ps_sel.pabe = 1; require_barrier |= (ALPHA.C == 1); sw_blending = true; } //Breath of Fire Dragon Quarter triggers this in battles. Graphics are fine though. //ASSERT(0); } // Compute the blending equation to detect special case uint8 blend_index = ((ALPHA.A * 3 + ALPHA.B) * 3 + ALPHA.C) * 3 + ALPHA.D; int blend_flag = GSDeviceOGL::m_blendMapOGL[blend_index].bogus; // SW Blend is (nearly) free. Let's use it. bool impossible_or_free_blend = (blend_flag & (BLEND_NO_BAR|BLEND_A_MAX|BLEND_ACCU)) || (m_prim_overlap == PRIM_OVERLAP_NO); // Do the multiplication in shader for blending accumulation: Cs*As + Cd or Cs*Af + Cd bool accumulation_blend = (blend_flag & BLEND_ACCU); // Warning no break on purpose switch (m_sw_blending) { case ACC_BLEND_ULTRA: sw_blending |= true; case ACC_BLEND_FULL: if (!m_vt.m_alpha.valid && (ALPHA.C == 0)) GetAlphaMinMax(); sw_blending |= (ALPHA.A != ALPHA.B) && ((ALPHA.C == 0 && m_vt.m_alpha.max > 128) || (ALPHA.C == 2 && ALPHA.FIX > 128u)); case ACC_BLEND_CCLIP_DALPHA: sw_blending |= (ALPHA.C == 1) || (m_env.COLCLAMP.CLAMP == 0); // Initial idea was to enable accurate blending for sprite rendering to handle // correctly post-processing effect. Some games (ZoE) use tons of sprites as particles. // In order to keep it fast, let's limit it to smaller draw call. case ACC_BLEND_SPRITE: sw_blending |= m_vt.m_primclass == GS_SPRITE_CLASS && m_drawlist.size() < 100; case ACC_BLEND_FREE: sw_blending |= (ps_sel.fbmask && !m_unsafe_fbmask) || impossible_or_free_blend; // blending is only free when we use slow fbmask default: sw_blending |= accumulation_blend; } // SW Blending // GL42 interact very badly with sw blending. GL42 uses the primitiveID to find the primitive // that write the bad alpha value. Sw blending will force the draw to run primitive by primitive // (therefore primitiveID will be constant to 1) sw_blending &= !DATE_GL42; // Color clip if (m_env.COLCLAMP.CLAMP == 0) { if (m_prim_overlap == PRIM_OVERLAP_NO) { // The fastest algo that requires a single pass GL_INS("COLCLIP Free mode ENABLED"); ps_sel.colclip = 1; ASSERT(sw_blending); accumulation_blend = false; // disable the HDR algo } else if (accumulation_blend) { // A fast algo that requires 2 passes GL_INS("COLCLIP Fast HDR mode ENABLED"); ps_sel.hdr = 1; } else if (sw_blending) { // A slow algo that could requires several passes (barely used) GL_INS("COLCLIP SW ENABLED (blending is %d/%d/%d/%d)", ALPHA.A, ALPHA.B, ALPHA.C, ALPHA.D); ps_sel.colclip = 1; } else { // Speed hack skip previous slow algo GL_INS("Sorry colclip isn't supported"); } } // Seriously don't expect me to support this kind of crazyness. // No mix of COLCLIP + accumulation_blend + DATE GL42 // Neither fbmask and GL42 ASSERT(!(ps_sel.hdr && DATE_GL42)); ASSERT(!(ps_sel.fbmask && DATE_GL42)); // For stat to optimize accurate option #if 0 GL_INS("BLEND_INFO: %d/%d/%d/%d. Clamp:%d. Prim:%d number %d (sw %d)", ALPHA.A, ALPHA.B, ALPHA.C, ALPHA.D, m_env.COLCLAMP.CLAMP, m_vt.m_primclass, m_vertex.next, sw_blending); #endif if (sw_blending) { ps_sel.blend_a = ALPHA.A; ps_sel.blend_b = ALPHA.B; ps_sel.blend_c = ALPHA.C; ps_sel.blend_d = ALPHA.D; if (accumulation_blend) { // Keep HW blending to do the addition/subtraction dev->OMSetBlendState(blend_index); if (ALPHA.A == 2) { // The blend unit does a reverse subtraction so it means // the shader must output a positive value. // Replace 0 - Cs by Cs - 0 ps_sel.blend_a = ALPHA.B; ps_sel.blend_b = 2; } // Remove the addition/substraction from the SW blending ps_sel.blend_d = 2; } else { // Disable HW blending dev->OMSetBlendState(); } // Require the fix alpha vlaue if (ALPHA.C == 2) { ps_cb.AlphaCoeff.a = (float)ALPHA.FIX / 128.0f; } // No need to flush for every primitive require_barrier |= !(blend_flag & BLEND_NO_BAR) && !accumulation_blend; } else { ps_sel.clr1 = !!(blend_flag & BLEND_C_CLR); if (ps_sel.dfmt == 1 && ALPHA.C == 1) { // 24 bits doesn't have an alpha channel so use 1.0f fix factor as equivalent int hacked_blend_index = blend_index + 3; // +3 <=> +1 on C dev->OMSetBlendState(hacked_blend_index, 128, true); } else { dev->OMSetBlendState(blend_index, ALPHA.FIX, (ALPHA.C == 2)); } } return require_barrier; } GSRendererOGL::PRIM_OVERLAP GSRendererOGL::PrimitiveOverlap() { // Either 1 triangle or 1 line or 3 POINTs // It is bad for the POINTs but low probability that they overlap if (m_vertex.next < 4) return PRIM_OVERLAP_NO; if (m_vt.m_primclass != GS_SPRITE_CLASS) return PRIM_OVERLAP_UNKNOW; // maybe, maybe not // Check intersection of sprite primitive only size_t count = m_vertex.next; PRIM_OVERLAP overlap = PRIM_OVERLAP_NO; GSVertex* v = m_vertex.buff; m_drawlist.clear(); size_t i = 0; while (i < count) { // In order to speed up comparison a bounding-box is accumulated. It removes a // loop so code is much faster (check game virtua fighter). Besides it allow to check // properly the Y order. // .x = min(v[i].XYZ.X, v[i+1].XYZ.X) // .y = min(v[i].XYZ.Y, v[i+1].XYZ.Y) // .z = max(v[i].XYZ.X, v[i+1].XYZ.X) // .w = max(v[i].XYZ.Y, v[i+1].XYZ.Y) GSVector4i all = GSVector4i(v[i].m[1]).upl16(GSVector4i(v[i+1].m[1])).upl16().xzyw(); all = all.xyxy().blend(all.zwzw(), all > all.zwxy()); size_t j = i + 2; while (j < count) { GSVector4i sprite = GSVector4i(v[j].m[1]).upl16(GSVector4i(v[j+1].m[1])).upl16().xzyw(); sprite = sprite.xyxy().blend(sprite.zwzw(), sprite > sprite.zwxy()); // Be sure to get vertex in good order, otherwise .r* function doesn't // work as expected. ASSERT(sprite.x <= sprite.z); ASSERT(sprite.y <= sprite.w); ASSERT(all.x <= all.z); ASSERT(all.y <= all.w); if (all.rintersect(sprite).rempty()) { all = all.runion_ordered(sprite); } else { overlap = PRIM_OVERLAP_YES; break; } j += 2; } m_drawlist.push_back((j - i) >> 1); // Sprite count i = j; } #if 0 // Old algo: less constraint but O(n^2) instead of O(n) as above // You have no guarantee on the sprite order, first vertex can be either top-left or bottom-left // There is a high probability that the draw call will uses same ordering for all vertices. // In order to keep a small performance impact only the first sprite will be checked // // Some safe-guard will be added in the outer-loop to avoid corruption with a limited perf impact if (v[1].XYZ.Y < v[0].XYZ.Y) { // First vertex is Top-Left for(size_t i = 0; i < count; i += 2) { if (v[i+1].XYZ.Y > v[i].XYZ.Y) { return PRIM_OVERLAP_UNKNOW; } GSVector4i vi(v[i].XYZ.X, v[i+1].XYZ.Y, v[i+1].XYZ.X, v[i].XYZ.Y); for (size_t j = i+2; j < count; j += 2) { GSVector4i vj(v[j].XYZ.X, v[j+1].XYZ.Y, v[j+1].XYZ.X, v[j].XYZ.Y); GSVector4i inter = vi.rintersect(vj); if (!inter.rempty()) { return PRIM_OVERLAP_YES; } } } } else { // First vertex is Bottom-Left for(size_t i = 0; i < count; i += 2) { if (v[i+1].XYZ.Y < v[i].XYZ.Y) { return PRIM_OVERLAP_UNKNOW; } GSVector4i vi(v[i].XYZ.X, v[i].XYZ.Y, v[i+1].XYZ.X, v[i+1].XYZ.Y); for (size_t j = i+2; j < count; j += 2) { GSVector4i vj(v[j].XYZ.X, v[j].XYZ.Y, v[j+1].XYZ.X, v[j+1].XYZ.Y); GSVector4i inter = vi.rintersect(vj); if (!inter.rempty()) { return PRIM_OVERLAP_YES; } } } } #endif //fprintf(stderr, "%d: Yes, code can be optimized (draw of %d vertices)\n", s_n, count); return overlap; } GSVector4i GSRendererOGL::ComputeBoundingBox(const GSVector2& rtscale, const GSVector2i& rtsize) { GSVector4 scale = GSVector4(rtscale.x, rtscale.y); GSVector4 offset = GSVector4(-1.0f, 1.0f); // Round value GSVector4 box = m_vt.m_min.p.xyxy(m_vt.m_max.p) + offset.xxyy(); return GSVector4i(box * scale.xyxy()).rintersect(GSVector4i(0, 0, rtsize.x, rtsize.y)); } void GSRendererOGL::SendDraw(bool require_barrier) { GSDeviceOGL* dev = (GSDeviceOGL*)m_dev; if (!require_barrier && m_unsafe_fbmask) { // Not safe but still worth to take some precautions. ASSERT(GLLoader::found_GL_ARB_texture_barrier); glTextureBarrier(); dev->DrawIndexedPrimitive(); } else if (!require_barrier) { dev->DrawIndexedPrimitive(); } else if (m_prim_overlap == PRIM_OVERLAP_NO) { ASSERT(GLLoader::found_GL_ARB_texture_barrier); glTextureBarrier(); dev->DrawIndexedPrimitive(); } else if (m_vt.m_primclass == GS_SPRITE_CLASS) { size_t nb_vertex = (GLLoader::found_geometry_shader) ? 2 : 6; GL_PUSH("Split the draw (SPRITE)"); #if defined(_DEBUG) // Check how draw call is split. map frequency; for (const auto& it: m_drawlist) ++frequency[it]; string message; for (const auto& it: frequency) message += " " + to_string(it.first) + "(" + to_string(it.second) + ")"; GL_PERF("Split single draw (%d sprites) into %zu draws: consecutive draws(frequency):%s", m_index.tail / nb_vertex, m_drawlist.size(), message.c_str()); #endif for (size_t count, p = 0, n = 0; n < m_drawlist.size(); p += count, ++n) { count = m_drawlist[n] * nb_vertex; glTextureBarrier(); dev->DrawIndexedPrimitive(p, count); } GL_POP(); } else { // FIXME: Investigate: a dynamic check to pack as many primitives as possibles // I'm nearly sure GSdx already have this kind of code (maybe we can adapt GSDirtyRect) size_t nb_vertex; switch (m_vt.m_primclass) { case GS_TRIANGLE_CLASS: nb_vertex = 3; break; case GS_POINT_CLASS: nb_vertex = 1; break; default: nb_vertex = 2; break; } GL_PUSH("Split the draw"); GL_PERF("Split single draw in %d draw", m_index.tail/nb_vertex); for (size_t p = 0; p < m_index.tail; p += nb_vertex) { glTextureBarrier(); dev->DrawIndexedPrimitive(p, nb_vertex); } GL_POP(); } } void GSRendererOGL::DrawPrims(GSTexture* rt, GSTexture* ds, GSTextureCache::Source* tex) { GSDeviceOGL::VSSelector vs_sel; GSDeviceOGL::GSSelector gs_sel; GSDeviceOGL::PSSelector ps_sel; GSDeviceOGL::PSSamplerSelector ps_ssel; GSDeviceOGL::OMColorMaskSelector om_csel; GSDeviceOGL::OMDepthStencilSelector om_dssel; GL_PUSH("GL Draw from %d in %d (Depth %d)", tex && tex->m_texture ? tex->m_texture->GetID() : 0, rt ? rt->GetID() : -1, ds ? ds->GetID() : -1); GSTexture* hdr_rt = NULL; const GSVector2i& rtsize = ds ? ds->GetSize() : rt->GetSize(); const GSVector2& rtscale = ds ? ds->GetScale() : rt->GetScale(); bool DATE = m_context->TEST.DATE && m_context->FRAME.PSM != PSM_PSMCT24; bool DATE_GL42 = false; bool DATE_GL45 = false; bool require_barrier = false; // For accurate option m_unsafe_fbmask = false; ASSERT(m_dev != NULL); GSDeviceOGL* dev = (GSDeviceOGL*)m_dev; dev->s_n = s_n; if ((DATE || m_sw_blending) && GLLoader::found_GL_ARB_texture_barrier && (m_vt.m_primclass == GS_SPRITE_CLASS)) { // Except 2D games, sprites are often use for special post-processing effect m_prim_overlap = PrimitiveOverlap(); } else { m_prim_overlap = PRIM_OVERLAP_UNKNOW; } #ifdef ENABLE_OGL_DEBUG if (m_sw_blending && (m_prim_overlap != PRIM_OVERLAP_NO) && (m_context->FRAME.Block() == m_context->TEX0.TBP0) && (m_vertex.next > 2)) { GL_INS("ERROR: Source and Target are the same!"); } #endif require_barrier |= EmulateTextureShuffleAndFbmask(ps_sel, om_csel); // DATE: selection of the algorithm. Must be done before blending because GL42 is not compatible with blending if (DATE && GLLoader::found_GL_ARB_texture_barrier) { if (m_prim_overlap == PRIM_OVERLAP_NO || m_texture_shuffle) { // It is way too complex to emulate texture shuffle with DATE. So just use // the slow but accurate algo require_barrier = true; DATE_GL45 = true; DATE = false; } else if (m_accurate_date && om_csel.wa /* FIXME Check the msb bit of the mask instead + the dfmt*/ && (!m_context->TEST.ATE || m_context->TEST.ATST == ATST_ALWAYS)) { // texture barrier will split the draw call into n draw call. It is very efficient for // few primitive draws. Otherwise it sucks. if (m_index.tail < 100) { require_barrier = true; DATE_GL45 = true; DATE = false; } else { DATE_GL42 = GLLoader::found_GL_ARB_shader_image_load_store; } } } // Blend if (!IsOpaque() && rt) { require_barrier |= EmulateBlending(ps_sel, DATE_GL42); } else { dev->OMSetBlendState(); // No blending please } if (ps_sel.dfmt == 1) { // Disable writing of the alpha channel om_csel.wa = 0; } // DATE (setup part) if (DATE) { GSVector4i dRect = ComputeBoundingBox(rtscale, rtsize); // Reduce the quantity of clean function glScissor( dRect.x, dRect.y, dRect.width(), dRect.height() ); GLState::scissor = dRect; // Must be done here to avoid any GL state pertubation (clear function...) // Create an r32ui image that will containt primitive ID if (DATE_GL42) { dev->InitPrimDateTexture(rt); } else { GSVector4 src = GSVector4(dRect) / GSVector4(rtsize.x, rtsize.y).xyxy(); GSVector4 dst = src * 2.0f - 1.0f; 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); } } // dev->BeginScene(); // om if (m_context->TEST.ZTE) { om_dssel.ztst = m_context->TEST.ZTST; om_dssel.zwe = !m_context->ZBUF.ZMSK; } else { om_dssel.ztst = ZTST_ALWAYS; } // vs vs_sel.wildhack = (UserHacks_WildHack && !isPackedUV_HackFlag) ? 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 (m_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) { GL_INS("Bad Z size on 24 bits buffers") vs_sel.bppz = 1; om_dssel.ztst = ZTST_ALWAYS; } } } else if (m_context->ZBUF.PSM == PSM_PSMZ16 || m_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) { GL_INS("Bad Z size on 16 bits buffers") vs_sel.bppz = 2; om_dssel.ztst = ZTST_ALWAYS; } } } } // FIXME Opengl support half pixel center (as dx10). Code could be easier!!! float sx = 2.0f * rtscale.x / (rtsize.x << 4); float sy = 2.0f * rtscale.y / (rtsize.y << 4); float ox = (float)(int)m_context->XYOFFSET.OFX; float oy = (float)(int)m_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 && 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 // 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_GL45) { ps_sel.date = 5 + m_context->TEST.DATM; } else if (DATE) { if (DATE_GL42) ps_sel.date = 1 + m_context->TEST.DATM; else om_dssel.date = 1; } ps_sel.fba = m_context->FBA.FBA; if (PRIM->FGE) { ps_sel.fog = 1; GSVector4 fc = GSVector4::rgba32(m_env.FOGCOL.u32[0]); #if _M_SSE >= 0x401 // Blend AREF to avoid to load a random value for alpha (dirty cache) ps_cb.FogColor_AREF = fc.blend32<8>(ps_cb.FogColor_AREF); #else ps_cb.FogColor_AREF = fc; #endif } if (m_context->TEST.ATE) ps_sel.atst = m_context->TEST.ATST; else ps_sel.atst = ATST_ALWAYS; if (m_context->TEST.ATE && m_context->TEST.ATST > 1) ps_cb.FogColor_AREF.a = (float)m_context->TEST.AREF; // By default don't use texture ps_sel.tfx = 4; bool spritehack = false; int atst = ps_sel.atst; if (tex) { const GSLocalMemory::psm_t &psm = GSLocalMemory::m_psm[m_context->TEX0.PSM]; const GSLocalMemory::psm_t &cpsm = psm.pal > 0 ? GSLocalMemory::m_psm[m_context->TEX0.CPSM] : psm; bool bilinear = m_filter == 2 ? m_vt.IsLinear() : m_filter != 0; bool simple_sample = !tex->m_palette && cpsm.fmt == 0 && m_context->CLAMP.WMS < 2 && m_context->CLAMP.WMT < 2; // Don't force extra filtering on sprite (it creates various upscaling issue) bilinear &= !((m_vt.m_primclass == GS_SPRITE_CLASS) && m_userhacks_round_sprite_offset && !m_vt.IsLinear()); ps_sel.wms = m_context->CLAMP.WMS; ps_sel.wmt = m_context->CLAMP.WMT; // Performance note: // 1/ Don't set 0 as it is the default value // 2/ Only keep aem when it is useful (avoid useless shader permutation) if (ps_sel.shuffle) { // Force a 32 bits access (normally shuffle is done on 16 bits) // ps_sel.tex_fmt = 0; // removed as an optimization ps_sel.aem = m_env.TEXA.AEM; ASSERT(tex->m_target); GSVector4 ta(m_env.TEXA & GSVector4i::x000000ff()); ps_cb.MinF_TA = ta.xyxy() / 255.0f; // FIXME: it is likely a bad idea to do the bilinear interpolation here // bilinear &= m_vt.IsLinear(); } else if (tex->m_target) { // Use an old target. AEM and index aren't resolved it must be done // on the GPU // Select the 32/24/16 bits color (AEM) ps_sel.tex_fmt = cpsm.fmt; ps_sel.aem = m_env.TEXA.AEM; GSVector4 ta(m_env.TEXA & GSVector4i::x000000ff()); ps_cb.MinF_TA = ta.xyxy() / 255.0f; // Select the index format if (tex->m_palette) { // FIXME Potentially improve fmt field in GSLocalMemory if (m_context->TEX0.PSM == PSM_PSMT4HL) ps_sel.tex_fmt |= 1 << 2; else if (m_context->TEX0.PSM == PSM_PSMT4HH) ps_sel.tex_fmt |= 2 << 2; else ps_sel.tex_fmt |= 3 << 2; // Alpha channel of the RT is reinterpreted as an index. Star // Ocean 3 uses it to emulate a stencil buffer. It is a very // bad idea to force bilinear filtering on it. bilinear &= m_vt.IsLinear(); } } else if (tex->m_palette) { // Use a standard 8 bits texture. AEM is already done on the CLUT // Therefore you only need to set the index // ps_sel.aem = 0; // removed as an optimization // Note 4 bits indexes are converted to 8 bits ps_sel.tex_fmt = 3 << 2; } else { // Standard texture. Both index and AEM expansion were already done by the CPU. // ps_sel.tex_fmt = 0; // removed as an optimization // ps_sel.aem = 0; // removed as an optimization } if (m_context->TEX0.TFX == TFX_MODULATE && m_vt.m_eq.rgba == 0xFFFF && m_vt.m_min.c.eq(GSVector4i(128))) { // Micro optimization that reduces GPU load (removes 5 instructions on the FS program) ps_sel.tfx = TFX_DECAL; } else { ps_sel.tfx = m_context->TEX0.TFX; } ps_sel.tcc = m_context->TEX0.TCC; ps_sel.ltf = bilinear && !simple_sample; spritehack = tex->m_spritehack_t; int w = tex->m_texture->GetWidth(); int h = tex->m_texture->GetHeight(); int tw = (int)(1 << m_context->TEX0.TW); int th = (int)(1 << m_context->TEX0.TH); GSVector4 WH(tw, th, w, h); ps_sel.fst = !!PRIM->FST; ps_cb.WH = WH; ps_cb.HalfTexel = GSVector4(-0.5f, 0.5f).xxyy() / WH.zwzw(); if ((m_context->CLAMP.WMS | m_context->CLAMP.WMT) > 1) { ps_cb.MskFix = GSVector4i(m_context->CLAMP.MINU, m_context->CLAMP.MINV, m_context->CLAMP.MAXU, m_context->CLAMP.MAXV); ps_cb.MinMax = GSVector4(ps_cb.MskFix) / WH.xyxy(); } // TC Offset Hack ps_sel.tcoffsethack = !!UserHacks_TCOffset; ps_cb.TC_OH_TS = GSVector4(1/16.0f, 1/16.0f, UserHacks_TCO_x, UserHacks_TCO_y) / WH.xyxy(); // Only enable clamping in CLAMP mode. REGION_CLAMP will be done manually in the shader ps_ssel.tau = (m_context->CLAMP.WMS != CLAMP_CLAMP); ps_ssel.tav = (m_context->CLAMP.WMT != CLAMP_CLAMP); ps_ssel.ltf = bilinear && simple_sample; ps_ssel.aniso = simple_sample; // Setup Texture ressources dev->SetupSampler(ps_ssel); dev->PSSetShaderResources(tex->m_texture, tex->m_palette); if (spritehack && (ps_sel.atst == 2)) { ps_sel.atst = 1; } } else { #ifdef ENABLE_OGL_DEBUG // Unattach texture to avoid noise in debugger dev->PSSetShaderResources(NULL, NULL); #endif } // Always bind the RT. This way special effect can use it. dev->PSSetShaderResource(3, rt); // GS #if 0 if (m_vt.m_primclass == GS_POINT_CLASS) { // Upscaling point will create aliasing because point has a size of 0 pixels. // This code tries to replace point with sprite. So a point in 4x will be replaced by // a 4x4 sprite. gs_sel.point = 1; // FIXME this formula is potentially wrong GSVector4 point_size = GSVector4(rtscale.x / rtsize.x, rtscale.y / rtsize.y) * 2.0f; vs_cb.TextureScale = vs_cb.TextureScale.xyxy(point_size); } #endif gs_sel.sprite = m_vt.m_primclass == GS_SPRITE_CLASS; dev->SetupVS(vs_sel); dev->SetupGS(gs_sel); dev->SetupPS(ps_sel); // rs GSVector4i scissor = GSVector4i(GSVector4(rtscale).xyxy() * m_context->scissor.in).rintersect(GSVector4i(rtsize).zwxy()); GL_PUSH("IA"); SetupIA(); GL_POP(); dev->OMSetColorMaskState(om_csel); dev->SetupOM(om_dssel); dev->SetupCB(&vs_cb, &ps_cb); if (DATE_GL42) { GL_PUSH("Date GL42"); // It could be good idea to use stencil in the same time. // Early stencil test will reduce the number of atomic-load operation // 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); // I don't know how much is it legal to mount rt as Texture/RT. No write is done. // In doubt let's detach RT. dev->OMSetRenderTargets(NULL, ds, &scissor); // Don't write anything on the color buffer // Neither in the depth buffer glDepthMask(false); // Compute primitiveID max that pass the date test SendDraw(false); // Ask PS to discard shader above the primitiveID max glDepthMask(GLState::depth_mask); ps_sel.date = 3; dev->SetupPS(ps_sel); // Be sure that first pass is finished ! dev->Barrier(GL_SHADER_IMAGE_ACCESS_BARRIER_BIT); GL_POP(); } if (ps_sel.hdr) { hdr_rt = dev->CreateTexture(rtsize.x, rtsize.y, GL_RGBA32F); dev->CopyRectConv(rt, hdr_rt, ComputeBoundingBox(rtscale, rtsize), false); dev->OMSetRenderTargets(hdr_rt, ds, &scissor); } else { dev->OMSetRenderTargets(rt, ds, &scissor); } if (m_context->TEST.DoFirstPass()) { SendDraw(require_barrier); } if (m_context->TEST.DoSecondPass()) { ASSERT(!m_env.PABE.PABE); static const uint32 iatst[] = {1, 0, 5, 6, 7, 2, 3, 4}; ps_sel.atst = iatst[atst]; if (spritehack && (ps_sel.atst == 2)) { ps_sel.atst = 1; } dev->SetupPS(ps_sel); bool z = om_dssel.zwe; bool r = om_csel.wr; bool g = om_csel.wg; bool b = om_csel.wb; bool a = om_csel.wa; switch(m_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_csel.wr = r; om_csel.wg = g; om_csel.wb = b; om_csel.wa = a; dev->OMSetColorMaskState(om_csel); dev->SetupOM(om_dssel); SendDraw(require_barrier); } } if (DATE_GL42) { dev->RecycleDateTexture(); } dev->EndScene(); // Warning: EndScene must be called before StretchRect otherwise // vertices will be overwritten. Trust me you don't want to do that. if (hdr_rt) { GSVector4 dRect(ComputeBoundingBox(rtscale, rtsize)); GSVector4 sRect = dRect / GSVector4(rtsize.x, rtsize.y).xyxy(); dev->StretchRect(hdr_rt, sRect, rt, dRect, ShaderConvert_MOD_256, false); dev->Recycle(hdr_rt); } GL_POP(); }