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Multithreadded Shadergen: First pass over pixel Shadergen

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Bug Fix: It was theoretically possible for a shader with depth writes
         disabled to map to the same UID as a shader with late depth
	 writes.
	 No known test cases trigger this.
This commit is contained in:
Scott Mansell 2016-01-17 02:25:16 +13:00
parent e99364c7c9
commit 0d996f512b
2 changed files with 227 additions and 181 deletions
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363
Source/Core/VideoCommon/PixelShaderGen.cpp
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@ -152,13 +152,12 @@ static const char* tevCOutputTable[] = {"prev.rgb", "c0.rgb", "c1.rgb", "c2.rgb"
static const char* tevAOutputTable[] = {"prev.a", "c0.a", "c1.a", "c2.a"};
template <class T>
static void WriteStage(T& out, pixel_shader_uid_data* uid_data, int n, API_TYPE ApiType,
const char swapModeTable[4][5]);
static void WriteStage(T& out, pixel_shader_uid_data* uid_data, int n, API_TYPE ApiType);
template <class T>
static void WriteTevRegular(T& out, const char* components, int bias, int op, int clamp, int shift);
template <class T>
static void SampleTexture(T& out, const char* texcoords, const char* texswap, int texmap,
API_TYPE ApiType);
bool stereo, API_TYPE ApiType);
template <class T>
static void WriteAlphaTest(T& out, pixel_shader_uid_data* uid_data, API_TYPE ApiType,
DSTALPHA_MODE dstAlphaMode, bool per_pixel_depth);
@ -172,22 +171,23 @@ static T GeneratePixelShader(DSTALPHA_MODE dstAlphaMode, API_TYPE ApiType)
// Non-uid template parameters will write to the dummy data (=> gets optimized out)
pixel_shader_uid_data dummy_data;
pixel_shader_uid_data* uid_data = out.template GetUidData<pixel_shader_uid_data>();
if (uid_data != nullptr)
memset(uid_data, 0, sizeof(*uid_data));
else
if (uid_data == nullptr)
uid_data = &dummy_data;
unsigned int numStages = bpmem.genMode.numtevstages + 1;
unsigned int numTexgen = bpmem.genMode.numtexgens;
out.Write("//Pixel Shader for TEV stages\n");
out.Write("//%i TEV stages, %i texgens, %i IND stages\n", numStages, numTexgen,
bpmem.genMode.numindstages.Value());
memset(uid_data, 0, sizeof(*uid_data));
uid_data->dstAlphaMode = dstAlphaMode;
uid_data->genMode_numindstages = bpmem.genMode.numindstages;
uid_data->genMode_numtevstages = bpmem.genMode.numtevstages;
uid_data->genMode_numtexgens = bpmem.genMode.numtexgens;
uid_data->per_pixel_lighting = g_ActiveConfig.bEnablePixelLighting;
uid_data->bounding_box = g_ActiveConfig.backend_info.bSupportsBBox &&
g_ActiveConfig.bBBoxEnable && BoundingBox::active;
u32 numStages = uid_data->genMode_numtevstages + 1;
out.Write("//Pixel Shader for TEV stages\n");
out.Write("//%i TEV stages, %i texgens, %i IND stages\n", numStages, uid_data->genMode_numtexgens,
uid_data->genMode_numindstages);
// dot product for integer vectors
out.Write("int idot(int3 x, int3 y)\n"
@ -249,7 +249,7 @@ static T GeneratePixelShader(DSTALPHA_MODE dstAlphaMode, API_TYPE ApiType)
"\tfloat4 " I_EFBSCALE ";\n"
"};\n");
if (g_ActiveConfig.bEnablePixelLighting)
if (uid_data->per_pixel_lighting)
{
out.Write("%s", s_lighting_struct);
@ -266,7 +266,7 @@ static T GeneratePixelShader(DSTALPHA_MODE dstAlphaMode, API_TYPE ApiType)
out.Write("};\n");
}
if (g_ActiveConfig.backend_info.bSupportsBBox && g_ActiveConfig.bBBoxEnable)
if (uid_data->bounding_box)
{
if (ApiType == API_OPENGL)
{
@ -284,18 +284,24 @@ static T GeneratePixelShader(DSTALPHA_MODE dstAlphaMode, API_TYPE ApiType)
GenerateVSOutputMembers<T>(out, ApiType, "");
out.Write("};\n");
const bool forced_early_z =
g_ActiveConfig.backend_info.bSupportsEarlyZ && bpmem.UseEarlyDepthTest() &&
(g_ActiveConfig.bFastDepthCalc || bpmem.alpha_test.TestResult() == AlphaTest::UNDETERMINED)
// We can't allow early_ztest for zfreeze because depth is overridden per-pixel.
// This means it's impossible for zcomploc to be emulated on a zfrozen polygon.
&& !(bpmem.zmode.testenable && bpmem.genMode.zfreeze);
const bool per_pixel_depth =
(bpmem.ztex2.op != ZTEXTURE_DISABLE && bpmem.UseLateDepthTest()) ||
(!g_ActiveConfig.bFastDepthCalc && bpmem.zmode.testenable && !forced_early_z) ||
(bpmem.zmode.testenable && bpmem.genMode.zfreeze);
{
const bool forced_early_z =
g_ActiveConfig.backend_info.bSupportsEarlyZ && bpmem.UseEarlyDepthTest() &&
(g_ActiveConfig.bFastDepthCalc || bpmem.alpha_test.TestResult() == AlphaTest::UNDETERMINED)
// We can't allow early_ztest for zfreeze because depth is overridden per-pixel.
// This means it's impossible for zcomploc to be emulated on a zfrozen polygon.
&& !(bpmem.zmode.testenable && bpmem.genMode.zfreeze);
const bool per_pixel_depth =
(bpmem.ztex2.op != ZTEXTURE_DISABLE && bpmem.UseLateDepthTest()) ||
(!g_ActiveConfig.bFastDepthCalc && bpmem.zmode.testenable && !forced_early_z) ||
(bpmem.zmode.testenable && bpmem.genMode.zfreeze);
if (forced_early_z)
uid_data->per_pixel_depth = per_pixel_depth;
uid_data->forced_early_z = forced_early_z;
uid_data->fast_depth_calc = g_ActiveConfig.bFastDepthCalc;
}
if (uid_data->forced_early_z)
{
// Zcomploc (aka early_ztest) is a way to control whether depth test is done before
// or after texturing and alpha test. PC graphics APIs used to provide no way to emulate
@ -341,8 +347,8 @@ static T GeneratePixelShader(DSTALPHA_MODE dstAlphaMode, API_TYPE ApiType)
out.Write("[earlydepthstencil]\n");
}
}
else if (bpmem.UseEarlyDepthTest() && (g_ActiveConfig.bFastDepthCalc ||
bpmem.alpha_test.TestResult() == AlphaTest::UNDETERMINED))
else if (bpmem.UseEarlyDepthTest() &&
(uid_data->fast_depth_calc || bpmem.alpha_test.TestResult() == AlphaTest::UNDETERMINED))
{
static bool warn_once = true;
if (warn_once)
@ -355,22 +361,22 @@ static T GeneratePixelShader(DSTALPHA_MODE dstAlphaMode, API_TYPE ApiType)
uid_data->msaa = g_ActiveConfig.iMultisamples > 1;
uid_data->ssaa = g_ActiveConfig.iMultisamples > 1 && g_ActiveConfig.bSSAA;
uid_data->stereo = g_ActiveConfig.iStereoMode > 0;
if (ApiType == API_OPENGL)
{
out.Write("out vec4 ocol0;\n");
if (dstAlphaMode == DSTALPHA_DUAL_SOURCE_BLEND)
out.Write("out vec4 ocol1;\n");
if (per_pixel_depth)
if (uid_data->per_pixel_depth)
out.Write("#define depth gl_FragDepth\n");
uid_data->stereo = g_ActiveConfig.iStereoMode > 0;
if (g_ActiveConfig.backend_info.bSupportsGeometryShaders)
{
out.Write("in VertexData {\n");
GenerateVSOutputMembers<T>(out, ApiType, GetInterpolationQualifier(true, true));
if (g_ActiveConfig.iStereoMode > 0)
if (uid_data->stereo)
out.Write("\tflat int layer;\n");
out.Write("};\n");
@ -381,12 +387,12 @@ static T GeneratePixelShader(DSTALPHA_MODE dstAlphaMode, API_TYPE ApiType)
out.Write("%s in float4 colors_1;\n", GetInterpolationQualifier());
// compute window position if needed because binding semantic WPOS is not widely supported
// Let's set up attributes
for (unsigned int i = 0; i < numTexgen; ++i)
for (unsigned int i = 0; i < uid_data->genMode_numtexgens; ++i)
{
out.Write("%s in float3 uv%d;\n", GetInterpolationQualifier(), i);
}
out.Write("%s in float4 clipPos;\n", GetInterpolationQualifier());
if (g_ActiveConfig.bEnablePixelLighting)
if (uid_data->per_pixel_lighting)
{
out.Write("%s in float3 Normal;\n", GetInterpolationQualifier());
out.Write("%s in float3 WorldPos;\n", GetInterpolationQualifier());
@ -397,7 +403,7 @@ static T GeneratePixelShader(DSTALPHA_MODE dstAlphaMode, API_TYPE ApiType)
if (g_ActiveConfig.backend_info.bSupportsGeometryShaders)
{
for (unsigned int i = 0; i < numTexgen; ++i)
for (unsigned int i = 0; i < uid_data->genMode_numtexgens; ++i)
out.Write("\tfloat3 uv%d = tex%d;\n", i, i);
}
@ -409,24 +415,24 @@ static T GeneratePixelShader(DSTALPHA_MODE dstAlphaMode, API_TYPE ApiType)
out.Write(" out float4 ocol0 : SV_Target0,%s%s\n in float4 rawpos : SV_Position,\n",
dstAlphaMode == DSTALPHA_DUAL_SOURCE_BLEND ? "\n out float4 ocol1 : SV_Target1," :
"",
per_pixel_depth ? "\n out float depth : SV_Depth," : "");
uid_data->per_pixel_depth ? "\n out float depth : SV_Depth," : "");
out.Write(" in %s float4 colors_0 : COLOR0,\n", GetInterpolationQualifier());
out.Write(" in %s float4 colors_1 : COLOR1\n", GetInterpolationQualifier());
// compute window position if needed because binding semantic WPOS is not widely supported
for (unsigned int i = 0; i < numTexgen; ++i)
for (unsigned int i = 0; i < uid_data->genMode_numtexgens; ++i)
out.Write(",\n in %s float3 uv%d : TEXCOORD%d", GetInterpolationQualifier(), i, i);
out.Write(",\n in %s float4 clipPos : TEXCOORD%d", GetInterpolationQualifier(), numTexgen);
if (g_ActiveConfig.bEnablePixelLighting)
out.Write(",\n in %s float4 clipPos : TEXCOORD%d", GetInterpolationQualifier(),
uid_data->genMode_numtexgens);
if (uid_data->per_pixel_lighting)
{
out.Write(",\n in %s float3 Normal : TEXCOORD%d", GetInterpolationQualifier(),
numTexgen + 1);
uid_data->genMode_numtexgens + 1);
out.Write(",\n in %s float3 WorldPos : TEXCOORD%d", GetInterpolationQualifier(),
numTexgen + 2);
uid_data->genMode_numtexgens + 2);
}
uid_data->stereo = g_ActiveConfig.iStereoMode > 0;
if (g_ActiveConfig.iStereoMode > 0)
if (uid_data->stereo)
out.Write(",\n in uint layer : SV_RenderTargetArrayIndex\n");
out.Write(" ) {\n");
}
@ -448,7 +454,7 @@ static T GeneratePixelShader(DSTALPHA_MODE dstAlphaMode, API_TYPE ApiType)
out.Write("\tfloat4 col0 = colors_0;\n");
out.Write("\tfloat4 col1 = colors_1;\n");
if (g_ActiveConfig.bEnablePixelLighting)
if (uid_data->per_pixel_lighting)
{
out.Write("\tfloat3 _norm0 = normalize(Normal.xyz);\n\n");
out.Write("\tfloat3 pos = WorldPos;\n");
@ -472,19 +478,19 @@ static T GeneratePixelShader(DSTALPHA_MODE dstAlphaMode, API_TYPE ApiType)
}
// HACK to handle cases where the tex gen is not enabled
if (numTexgen == 0)
if (uid_data->genMode_numtexgens == 0)
{
out.Write("\tint2 fixpoint_uv0 = int2(0, 0);\n\n");
}
else
{
out.SetConstantsUsed(C_TEXDIMS, C_TEXDIMS + numTexgen - 1);
for (unsigned int i = 0; i < numTexgen; ++i)
out.SetConstantsUsed(C_TEXDIMS, C_TEXDIMS + uid_data->genMode_numtexgens - 1);
for (unsigned int i = 0; i < uid_data->genMode_numtexgens; ++i)
{
out.Write("\tint2 fixpoint_uv%d = itrunc(", i);
// optional perspective divides
uid_data->texMtxInfo_n_projection |= xfmem.texMtxInfo[i].projection << i;
if (xfmem.texMtxInfo[i].projection == XF_TEXPROJ_STQ)
if (((uid_data->texMtxInfo_n_projection >> i) & 1) == XF_TEXPROJ_STQ)
{
out.Write("(uv%d.z == 0.0 ? uv%d.xy : uv%d.xy / uv%d.z)", i, i, i, i);
}
@ -499,25 +505,26 @@ static T GeneratePixelShader(DSTALPHA_MODE dstAlphaMode, API_TYPE ApiType)
// indirect texture map lookup
int nIndirectStagesUsed = 0;
if (bpmem.genMode.numindstages > 0)
if (uid_data->genMode_numindstages > 0)
{
for (unsigned int i = 0; i < numStages; ++i)
{
if (bpmem.tevind[i].IsActive() && bpmem.tevind[i].bt < bpmem.genMode.numindstages)
if (bpmem.tevind[i].IsActive() && bpmem.tevind[i].bt < uid_data->genMode_numindstages)
nIndirectStagesUsed |= 1 << bpmem.tevind[i].bt;
}
}
uid_data->nIndirectStagesUsed = nIndirectStagesUsed;
for (u32 i = 0; i < bpmem.genMode.numindstages; ++i)
for (u32 i = 0; i < uid_data->genMode_numindstages; ++i)
{
if (nIndirectStagesUsed & (1 << i))
if (uid_data->nIndirectStagesUsed & (1 << i))
{
unsigned int texcoord = bpmem.tevindref.getTexCoord(i);
unsigned int texmap = bpmem.tevindref.getTexMap(i);
uid_data->SetTevindrefValues(i, bpmem.tevindref.getTexCoord(i), bpmem.tevindref.getTexMap(i));
uid_data->SetTevindrefValues(i, texcoord, texmap);
if (texcoord < numTexgen)
unsigned int texcoord = uid_data->GetTevindirefCoord(i);
unsigned int texmap = uid_data->GetTevindirefMap(i);
if (texcoord < uid_data->genMode_numtexgens)
{
out.SetConstantsUsed(C_INDTEXSCALE + i / 2, C_INDTEXSCALE + i / 2);
out.Write("\ttempcoord = fixpoint_uv%d >> " I_INDTEXSCALE "[%d].%s;\n", texcoord, i / 2,
@ -527,56 +534,50 @@ static T GeneratePixelShader(DSTALPHA_MODE dstAlphaMode, API_TYPE ApiType)
out.Write("\ttempcoord = int2(0, 0);\n");
out.Write("\tint3 iindtex%d = ", i);
SampleTexture<T>(out, "float2(tempcoord)", "abg", texmap, ApiType);
SampleTexture<T>(out, "float2(tempcoord)", "abg", texmap, uid_data->stereo, ApiType);
}
}
// Uid fields for BuildSwapModeTable are set in WriteStage
char swapModeTable[4][5];
const char* swapColors = "rgba";
for (int i = 0; i < 4; i++)
{
swapModeTable[i][0] = swapColors[bpmem.tevksel[i * 2].swap1];
swapModeTable[i][1] = swapColors[bpmem.tevksel[i * 2].swap2];
swapModeTable[i][2] = swapColors[bpmem.tevksel[i * 2 + 1].swap1];
swapModeTable[i][3] = swapColors[bpmem.tevksel[i * 2 + 1].swap2];
swapModeTable[i][4] = '\0';
}
for (unsigned int i = 0; i < numStages; i++)
WriteStage<T>(out, uid_data, i, ApiType, swapModeTable); // build the equation for this stage
WriteStage<T>(out, uid_data, i, ApiType); // build the equation for this stage
#define MY_STRUCT_OFFSET(str, elem) ((u32)((u64) & (str).elem - (u64) & (str)))
bool enable_pl = g_ActiveConfig.bEnablePixelLighting;
uid_data->num_values =
(enable_pl) ? sizeof(*uid_data) : MY_STRUCT_OFFSET(*uid_data, stagehash[numStages]);
uid_data->num_values = (uid_data->per_pixel_lighting) ?
sizeof(*uid_data) :
MY_STRUCT_OFFSET(*uid_data, stagehash[numStages]);
if (numStages)
{
// The results of the last texenv stage are put onto the screen,
// regardless of the used destination register
if (bpmem.combiners[numStages - 1].colorC.dest != 0)
TevStageCombiner::ColorCombiner last_cc;
TevStageCombiner::AlphaCombiner last_ac;
last_cc.hex = uid_data->stagehash[uid_data->genMode_numtevstages].cc;
last_ac.hex = uid_data->stagehash[uid_data->genMode_numtevstages].ac;
if (last_cc.dest != 0)
{
out.Write("\tprev.rgb = %s;\n", tevCOutputTable[bpmem.combiners[numStages - 1].colorC.dest]);
out.Write("\tprev.rgb = %s;\n", tevCOutputTable[last_cc.dest]);
}
if (bpmem.combiners[numStages - 1].alphaC.dest != 0)
if (last_ac.dest != 0)
{
out.Write("\tprev.a = %s;\n", tevAOutputTable[bpmem.combiners[numStages - 1].alphaC.dest]);
out.Write("\tprev.a = %s;\n", tevAOutputTable[last_ac.dest]);
}
}
out.Write("\tprev = prev & 255;\n");
AlphaTest::TEST_RESULT Pretest = bpmem.alpha_test.TestResult();
uid_data->Pretest = Pretest;
uid_data->late_ztest = bpmem.UseLateDepthTest();
// NOTE: Fragment may not be discarded if alpha test always fails and early depth test is enabled
// (in this case we need to write a depth value if depth test passes regardless of the alpha
// testing result)
if (Pretest == AlphaTest::UNDETERMINED ||
(Pretest == AlphaTest::FAIL && bpmem.UseLateDepthTest()))
WriteAlphaTest<T>(out, uid_data, ApiType, dstAlphaMode, per_pixel_depth);
if (uid_data->Pretest == AlphaTest::UNDETERMINED ||
(uid_data->Pretest == AlphaTest::FAIL && uid_data->late_ztest))
WriteAlphaTest<T>(out, uid_data, ApiType, dstAlphaMode, uid_data->per_pixel_depth);
if (bpmem.genMode.zfreeze)
uid_data->zfreeze = bpmem.genMode.zfreeze;
if (uid_data->zfreeze)
{
out.SetConstantsUsed(C_ZSLOPE, C_ZSLOPE);
out.SetConstantsUsed(C_EFBSCALE, C_EFBSCALE);
@ -590,7 +591,7 @@ static T GeneratePixelShader(DSTALPHA_MODE dstAlphaMode, API_TYPE ApiType)
out.Write("\tint zCoord = int(" I_ZSLOPE ".z + " I_ZSLOPE ".x * screenpos.x + " I_ZSLOPE
".y * screenpos.y);\n");
}
else if (!g_ActiveConfig.bFastDepthCalc)
else if (!uid_data->fast_depth_calc)
{
// FastDepth means to trust the depth generated in perspective division.
// It should be correct, but it seems not to be as accurate as required. TODO: Find out why!
@ -611,20 +612,16 @@ static T GeneratePixelShader(DSTALPHA_MODE dstAlphaMode, API_TYPE ApiType)
}
out.Write("\tzCoord = clamp(zCoord, 0, 0xFFFFFF);\n");
// depth texture can safely be ignored if the result won't be written to the depth buffer
// (early_ztest) and isn't used for fog either
const bool skip_ztexture = !per_pixel_depth && !bpmem.fog.c_proj_fsel.fsel;
uid_data->ztex_op = bpmem.ztex2.op;
uid_data->per_pixel_depth = per_pixel_depth;
uid_data->forced_early_z = forced_early_z;
uid_data->fast_depth_calc = g_ActiveConfig.bFastDepthCalc;
uid_data->early_ztest = bpmem.UseEarlyDepthTest();
uid_data->fog_fsel = bpmem.fog.c_proj_fsel.fsel;
uid_data->zfreeze = bpmem.genMode.zfreeze;
// depth texture can safely be ignored if the result won't be written to the depth buffer
// (early_ztest) and isn't used for fog either
const bool skip_ztexture = !uid_data->per_pixel_depth && !uid_data->fog_fsel;
// Note: z-textures are not written to depth buffer if early depth test is used
if (per_pixel_depth && bpmem.UseEarlyDepthTest())
if (uid_data->per_pixel_depth && uid_data->early_ztest)
{
if (ApiType == API_D3D)
out.Write("\tdepth = 1.0 - float(zCoord) / 16777216.0;\n");
@ -635,17 +632,17 @@ static T GeneratePixelShader(DSTALPHA_MODE dstAlphaMode, API_TYPE ApiType)
// Note: depth texture output is only written to depth buffer if late depth test is used
// theoretical final depth value is used for fog calculation, though, so we have to emulate
// ztextures anyway
if (bpmem.ztex2.op != ZTEXTURE_DISABLE && !skip_ztexture)
if (uid_data->ztex_op != ZTEXTURE_DISABLE && !skip_ztexture)
{
// use the texture input of the last texture stage (textemp), hopefully this has been read and
// is in correct format...
out.SetConstantsUsed(C_ZBIAS, C_ZBIAS + 1);
out.Write("\tzCoord = idot(" I_ZBIAS "[0].xyzw, textemp.xyzw) + " I_ZBIAS "[1].w %s;\n",
(bpmem.ztex2.op == ZTEXTURE_ADD) ? "+ zCoord" : "");
(uid_data->ztex_op == ZTEXTURE_ADD) ? "+ zCoord" : "");
out.Write("\tzCoord = zCoord & 0xFFFFFF;\n");
}
if (per_pixel_depth && bpmem.UseLateDepthTest())
if (uid_data->per_pixel_depth && uid_data->late_ztest)
{
if (ApiType == API_D3D)
out.Write("\tdepth = 1.0 - float(zCoord) / 16777216.0;\n");
@ -675,10 +672,8 @@ static T GeneratePixelShader(DSTALPHA_MODE dstAlphaMode, API_TYPE ApiType)
out.Write("\tocol0.a = float(" I_ALPHA ".a) / 255.0;\n");
}
if (g_ActiveConfig.backend_info.bSupportsBBox && g_ActiveConfig.bBBoxEnable &&
BoundingBox::active)
if (uid_data->bounding_box)
{
uid_data->bounding_box = true;
const char* atomic_op = ApiType == API_OPENGL ? "atomic" : "Interlocked";
out.Write("\tif(bbox_data[0] > int(rawpos.x)) %sMin(bbox_data[0], int(rawpos.x));\n"
"\tif(bbox_data[1] < int(rawpos.x)) %sMax(bbox_data[1], int(rawpos.x));\n"
@ -693,8 +688,7 @@ static T GeneratePixelShader(DSTALPHA_MODE dstAlphaMode, API_TYPE ApiType)
}
template <class T>
static void WriteStage(T& out, pixel_shader_uid_data* uid_data, int n, API_TYPE ApiType,
const char swapModeTable[4][5])
static void WriteStage(T& out, pixel_shader_uid_data* uid_data, int n, API_TYPE ApiType)
{
int texcoord = bpmem.tevorders[n / 2].getTexCoord(n & 1);
bool bHasTexCoord = (u32)texcoord < bpmem.genMode.numtexgens;
@ -705,57 +699,57 @@ static void WriteStage(T& out, pixel_shader_uid_data* uid_data, int n, API_TYPE
out.Write("\n\t// TEV stage %d\n", n);
auto& stage = uid_data->stagehash[n];
uid_data->stagehash[n].hasindstage = bHasIndStage;
uid_data->stagehash[n].tevorders_texcoord = texcoord;
if (bHasIndStage)
if (stage.hasindstage)
{
uid_data->stagehash[n].tevind = bpmem.tevind[n].hex & 0x7FFFFF;
uid_data->stagehash[n].tevind = bpmem.tevind[n].hex;
TevStageIndirect tevind;
tevind.hex = stage.tevind;
out.Write("\t// indirect op\n");
// perform the indirect op on the incoming regular coordinates using iindtex%d as the offset
// coords
if (bpmem.tevind[n].bs != ITBA_OFF)
if (tevind.bs != ITBA_OFF)
{
const char* tevIndAlphaSel[] = {"", "x", "y", "z"};
const char* tevIndAlphaMask[] = {"248", "224", "240",
"248"}; // 0b11111000, 0b11100000, 0b11110000, 0b11111000
out.Write("alphabump = iindtex%d.%s & %s;\n", bpmem.tevind[n].bt,
tevIndAlphaSel[bpmem.tevind[n].bs], tevIndAlphaMask[bpmem.tevind[n].fmt]);
out.Write("alphabump = iindtex%d.%s & %s;\n", tevind.bt, tevIndAlphaSel[tevind.bs],
tevIndAlphaMask[tevind.fmt]);
}
else
{
// TODO: Should we reset alphabump to 0 here?
}
if (bpmem.tevind[n].mid != 0)
if (tevind.mid != 0)
{
// format
const char* tevIndFmtMask[] = {"255", "31", "15", "7"};
out.Write("\tint3 iindtevcrd%d = iindtex%d & %s;\n", n, bpmem.tevind[n].bt,
tevIndFmtMask[bpmem.tevind[n].fmt]);
out.Write("\tint3 iindtevcrd%d = iindtex%d & %s;\n", n, tevind.bt, tevIndFmtMask[tevind.fmt]);
// bias - TODO: Check if this needs to be this complicated..
const char* tevIndBiasField[] = {"", "x", "y", "xy",
"z", "xz", "yz", "xyz"}; // indexed by bias
const char* tevIndBiasAdd[] = {"-128", "1", "1", "1"}; // indexed by fmt
if (bpmem.tevind[n].bias == ITB_S || bpmem.tevind[n].bias == ITB_T ||
bpmem.tevind[n].bias == ITB_U)
out.Write("\tiindtevcrd%d.%s += int(%s);\n", n, tevIndBiasField[bpmem.tevind[n].bias],
tevIndBiasAdd[bpmem.tevind[n].fmt]);
else if (bpmem.tevind[n].bias == ITB_ST || bpmem.tevind[n].bias == ITB_SU ||
bpmem.tevind[n].bias == ITB_TU)
out.Write("\tiindtevcrd%d.%s += int2(%s, %s);\n", n, tevIndBiasField[bpmem.tevind[n].bias],
tevIndBiasAdd[bpmem.tevind[n].fmt], tevIndBiasAdd[bpmem.tevind[n].fmt]);
else if (bpmem.tevind[n].bias == ITB_STU)
out.Write("\tiindtevcrd%d.%s += int3(%s, %s, %s);\n", n,
tevIndBiasField[bpmem.tevind[n].bias], tevIndBiasAdd[bpmem.tevind[n].fmt],
tevIndBiasAdd[bpmem.tevind[n].fmt], tevIndBiasAdd[bpmem.tevind[n].fmt]);
if (tevind.bias == ITB_S || tevind.bias == ITB_T || tevind.bias == ITB_U)
out.Write("\tiindtevcrd%d.%s += int(%s);\n", n, tevIndBiasField[tevind.bias],
tevIndBiasAdd[tevind.fmt]);
else if (tevind.bias == ITB_ST || tevind.bias == ITB_SU || tevind.bias == ITB_TU)
out.Write("\tiindtevcrd%d.%s += int2(%s, %s);\n", n, tevIndBiasField[tevind.bias],
tevIndBiasAdd[tevind.fmt], tevIndBiasAdd[tevind.fmt]);
else if (tevind.bias == ITB_STU)
out.Write("\tiindtevcrd%d.%s += int3(%s, %s, %s);\n", n, tevIndBiasField[tevind.bias],
tevIndBiasAdd[tevind.fmt], tevIndBiasAdd[tevind.fmt], tevIndBiasAdd[tevind.fmt]);
// multiply by offset matrix and scale - calculations are likely to overflow badly,
// yet it works out since we only care about the lower 23 bits (+1 sign bit) of the result
if (bpmem.tevind[n].mid <= 3)
if (tevind.mid <= 3)
{
int mtxidx = 2 * (bpmem.tevind[n].mid - 1);
int mtxidx = 2 * (tevind.mid - 1);
out.SetConstantsUsed(C_INDTEXMTX + mtxidx, C_INDTEXMTX + mtxidx);
out.Write("\tint2 indtevtrans%d = int2(idot(" I_INDTEXMTX
@ -767,27 +761,27 @@ static void WriteStage(T& out, pixel_shader_uid_data* uid_data, int n, API_TYPE
mtxidx, n, mtxidx);
out.Write("\telse indtevtrans%d <<= (-" I_INDTEXMTX "[%d].w);\n", n, mtxidx);
}
else if (bpmem.tevind[n].mid <= 7 && bHasTexCoord)
else if (tevind.mid <= 7 && bHasTexCoord)
{ // s matrix
_assert_(bpmem.tevind[n].mid >= 5);
int mtxidx = 2 * (bpmem.tevind[n].mid - 5);
_assert_(tevind.mid >= 5);
int mtxidx = 2 * (tevind.mid - 5);
out.SetConstantsUsed(C_INDTEXMTX + mtxidx, C_INDTEXMTX + mtxidx);
out.Write("\tint2 indtevtrans%d = int2(fixpoint_uv%d * iindtevcrd%d.xx) >> 8;\n", n,
texcoord, n);
stage.tevorders_texcoord, n);
out.Write("\tif (" I_INDTEXMTX "[%d].w >= 0) indtevtrans%d >>= " I_INDTEXMTX "[%d].w;\n",
mtxidx, n, mtxidx);
out.Write("\telse indtevtrans%d <<= (-" I_INDTEXMTX "[%d].w);\n", n, mtxidx);
}
else if (bpmem.tevind[n].mid <= 11 && bHasTexCoord)
else if (tevind.mid <= 11 && bHasTexCoord)
{ // t matrix
_assert_(bpmem.tevind[n].mid >= 9);
int mtxidx = 2 * (bpmem.tevind[n].mid - 9);
_assert_(tevind.mid >= 9);
int mtxidx = 2 * (tevind.mid - 9);
out.SetConstantsUsed(C_INDTEXMTX + mtxidx, C_INDTEXMTX + mtxidx);
out.Write("\tint2 indtevtrans%d = int2(fixpoint_uv%d * iindtevcrd%d.yy) >> 8;\n", n,
texcoord, n);
stage.tevorders_texcoord, n);
out.Write("\tif (" I_INDTEXMTX "[%d].w >= 0) indtevtrans%d >>= " I_INDTEXMTX "[%d].w;\n",
mtxidx, n, mtxidx);
@ -811,24 +805,24 @@ static void WriteStage(T& out, pixel_shader_uid_data* uid_data, int n, API_TYPE
"(32<<7)", "(16<<7)", "1"}; // TODO: Should the last one be 1 or (1<<7)?
// wrap S
if (bpmem.tevind[n].sw == ITW_OFF)
out.Write("\twrappedcoord.x = fixpoint_uv%d.x;\n", texcoord);
else if (bpmem.tevind[n].sw == ITW_0)
if (tevind.sw == ITW_OFF)
out.Write("\twrappedcoord.x = fixpoint_uv%d.x;\n", stage.tevorders_texcoord);
else if (tevind.sw == ITW_0)
out.Write("\twrappedcoord.x = 0;\n");
else
out.Write("\twrappedcoord.x = fixpoint_uv%d.x & (%s - 1);\n", texcoord,
tevIndWrapStart[bpmem.tevind[n].sw]);
out.Write("\twrappedcoord.x = fixpoint_uv%d.x & (%s - 1);\n", stage.tevorders_texcoord,
tevIndWrapStart[tevind.sw]);
// wrap T
if (bpmem.tevind[n].tw == ITW_OFF)
out.Write("\twrappedcoord.y = fixpoint_uv%d.y;\n", texcoord);
else if (bpmem.tevind[n].tw == ITW_0)
if (tevind.tw == ITW_OFF)
out.Write("\twrappedcoord.y = fixpoint_uv%d.y;\n", stage.tevorders_texcoord);
else if (tevind.tw == ITW_0)
out.Write("\twrappedcoord.y = 0;\n");
else
out.Write("\twrappedcoord.y = fixpoint_uv%d.y & (%s - 1);\n", texcoord,
tevIndWrapStart[bpmem.tevind[n].tw]);
out.Write("\twrappedcoord.y = fixpoint_uv%d.y & (%s - 1);\n", stage.tevorders_texcoord,
tevIndWrapStart[tevind.tw]);
if (bpmem.tevind[n].fb_addprev) // add previous tevcoord
if (tevind.fb_addprev) // add previous tevcoord
out.Write("\ttevcoord.xy += wrappedcoord + indtevtrans%d;\n", n);
else
out.Write("\ttevcoord.xy = wrappedcoord + indtevtrans%d;\n", n);
@ -837,11 +831,14 @@ static void WriteStage(T& out, pixel_shader_uid_data* uid_data, int n, API_TYPE
out.Write("\ttevcoord.xy = (tevcoord.xy << 8) >> 8;\n");
}
TevStageCombiner::ColorCombiner& cc = bpmem.combiners[n].colorC;
TevStageCombiner::AlphaCombiner& ac = bpmem.combiners[n].alphaC;
uid_data->stagehash[n].cc = bpmem.combiners[n].colorC.hex & 0xFFFFFF;
uid_data->stagehash[n].ac =
bpmem.combiners[n].alphaC.hex & 0xFFFFF0; // Storing rswap and tswap later
uid_data->stagehash[n].cc = cc.hex & 0xFFFFFF;
uid_data->stagehash[n].ac = ac.hex & 0xFFFFF0; // Storing rswap and tswap later
TevStageCombiner::ColorCombiner cc;
TevStageCombiner::AlphaCombiner ac;
cc.hex = stage.cc;
ac.hex = stage.ac;
if (cc.a == TEVCOLORARG_RASA || cc.a == TEVCOLORARG_RASC || cc.b == TEVCOLORARG_RASA ||
cc.b == TEVCOLORARG_RASC || cc.c == TEVCOLORARG_RASA || cc.c == TEVCOLORARG_RASC ||
@ -849,21 +846,33 @@ static void WriteStage(T& out, pixel_shader_uid_data* uid_data, int n, API_TYPE
ac.b == TEVALPHAARG_RASA || ac.c == TEVALPHAARG_RASA || ac.d == TEVALPHAARG_RASA)
{
const int i = bpmem.combiners[n].alphaC.rswap;
uid_data->stagehash[n].ac |= bpmem.combiners[n].alphaC.rswap;
ac.rswap = bpmem.combiners[n].alphaC.rswap;
uid_data->stagehash[n].tevksel_swap1a = bpmem.tevksel[i * 2].swap1;
uid_data->stagehash[n].tevksel_swap2a = bpmem.tevksel[i * 2].swap2;
uid_data->stagehash[n].tevksel_swap1b = bpmem.tevksel[i * 2 + 1].swap1;
uid_data->stagehash[n].tevksel_swap2b = bpmem.tevksel[i * 2 + 1].swap2;
uid_data->stagehash[n].tevorders_colorchan = bpmem.tevorders[n / 2].getColorChan(n & 1);
const char* rasswap = swapModeTable[bpmem.combiners[n].alphaC.rswap];
out.Write("\trastemp = %s.%s;\n", tevRasTable[bpmem.tevorders[n / 2].getColorChan(n & 1)],
rasswap);
char rasswap[5] = {"rgba"[stage.tevksel_swap1a], "rgba"[stage.tevksel_swap2a],
"rgba"[stage.tevksel_swap1b], "rgba"[stage.tevksel_swap2b], '\0'};
out.Write("\trastemp = %s.%s;\n", tevRasTable[stage.tevorders_colorchan], rasswap);
}
uid_data->stagehash[n].tevorders_enable = bpmem.tevorders[n / 2].getEnable(n & 1);
if (bpmem.tevorders[n / 2].getEnable(n & 1))
if (stage.tevorders_enable)
{
int texmap = bpmem.tevorders[n / 2].getTexMap(n & 1);
const int i = bpmem.combiners[n].alphaC.tswap;
uid_data->stagehash[n].ac |= bpmem.combiners[n].alphaC.tswap << 2;
ac.tswap = bpmem.combiners[n].alphaC.tswap;
uid_data->stagehash[n].tevksel_swap1c = bpmem.tevksel[i * 2].swap1;
uid_data->stagehash[n].tevksel_swap2c = bpmem.tevksel[i * 2].swap2;
uid_data->stagehash[n].tevksel_swap1d = bpmem.tevksel[i * 2 + 1].swap1;
uid_data->stagehash[n].tevksel_swap2d = bpmem.tevksel[i * 2 + 1].swap2;
uid_data->stagehash[n].tevorders_texmap = bpmem.tevorders[n / 2].getTexMap(n & 1);
if (!bHasIndStage)
{
// calc tevcord
@ -873,17 +882,11 @@ static void WriteStage(T& out, pixel_shader_uid_data* uid_data, int n, API_TYPE
out.Write("\ttevcoord.xy = int2(0, 0);\n");
}
const int i = bpmem.combiners[n].alphaC.tswap;
uid_data->stagehash[n].tevksel_swap1c = bpmem.tevksel[i * 2].swap1;
uid_data->stagehash[n].tevksel_swap2c = bpmem.tevksel[i * 2].swap2;
uid_data->stagehash[n].tevksel_swap1d = bpmem.tevksel[i * 2 + 1].swap1;
uid_data->stagehash[n].tevksel_swap2d = bpmem.tevksel[i * 2 + 1].swap2;
char texswap[5] = {"rgba"[stage.tevksel_swap1c], "rgba"[stage.tevksel_swap2c],
"rgba"[stage.tevksel_swap1d], "rgba"[stage.tevksel_swap2d], '\0'};
uid_data->stagehash[n].tevorders_texmap = bpmem.tevorders[n / 2].getTexMap(n & 1);
const char* texswap = swapModeTable[bpmem.combiners[n].alphaC.tswap];
out.Write("\ttextemp = ");
SampleTexture<T>(out, "float2(tevcoord.xy)", texswap, texmap, ApiType);
SampleTexture<T>(out, "float2(tevcoord.xy)", texswap, texmap, uid_data->stereo, ApiType);
}
else
{
@ -894,16 +897,17 @@ static void WriteStage(T& out, pixel_shader_uid_data* uid_data, int n, API_TYPE
cc.d == TEVCOLORARG_KONST || ac.a == TEVALPHAARG_KONST || ac.b == TEVALPHAARG_KONST ||
ac.c == TEVALPHAARG_KONST || ac.d == TEVALPHAARG_KONST)
{
int kc = bpmem.tevksel[n / 2].getKC(n & 1);
int ka = bpmem.tevksel[n / 2].getKA(n & 1);
uid_data->stagehash[n].tevksel_kc = kc;
uid_data->stagehash[n].tevksel_ka = ka;
out.Write("\tkonsttemp = int4(%s, %s);\n", tevKSelTableC[kc], tevKSelTableA[ka]);
uid_data->stagehash[n].tevksel_kc = bpmem.tevksel[n / 2].getKC(n & 1);
uid_data->stagehash[n].tevksel_ka = bpmem.tevksel[n / 2].getKA(n & 1);
out.Write("\tkonsttemp = int4(%s, %s);\n", tevKSelTableC[stage.tevksel_kc],
tevKSelTableA[stage.tevksel_ka]);
if (kc > 7)
out.SetConstantsUsed(C_KCOLORS + ((kc - 0xc) % 4), C_KCOLORS + ((kc - 0xc) % 4));
if (ka > 7)
out.SetConstantsUsed(C_KCOLORS + ((ka - 0xc) % 4), C_KCOLORS + ((ka - 0xc) % 4));
if (stage.tevksel_kc > 7)
out.SetConstantsUsed(C_KCOLORS + ((stage.tevksel_kc - 0xc) % 4),
C_KCOLORS + ((stage.tevksel_kc - 0xc) % 4));
if (stage.tevksel_ka > 7)
out.SetConstantsUsed(C_KCOLORS + ((stage.tevksel_ka - 0xc) % 4),
C_KCOLORS + ((stage.tevksel_ka - 0xc) % 4));
}
if (cc.d == TEVCOLORARG_C0 || cc.d == TEVCOLORARG_A0 || ac.d == TEVALPHAARG_A0)
@ -1042,18 +1046,17 @@ static void WriteTevRegular(T& out, const char* components, int bias, int op, in
template <class T>
static void SampleTexture(T& out, const char* texcoords, const char* texswap, int texmap,
API_TYPE ApiType)
bool stereo, API_TYPE ApiType)
{
out.SetConstantsUsed(C_TEXDIMS + texmap, C_TEXDIMS + texmap);
if (ApiType == API_D3D)
out.Write("iround(255.0 * Tex[%d].Sample(samp[%d], float3(%s.xy * " I_TEXDIMS
"[%d].xy, %s))).%s;\n",
texmap, texmap, texcoords, texmap, g_ActiveConfig.iStereoMode > 0 ? "layer" : "0.0",
texswap);
texmap, texmap, texcoords, texmap, stereo ? "layer" : "0.0", texswap);
else
out.Write("iround(255.0 * texture(samp[%d], float3(%s.xy * " I_TEXDIMS "[%d].xy, %s))).%s;\n",
texmap, texcoords, texmap, g_ActiveConfig.iStereoMode > 0 ? "layer" : "0.0", texswap);
texmap, texcoords, texmap, stereo ? "layer" : "0.0", texswap);
}
static const char* tevAlphaFuncsTable[] = {
@ -1092,13 +1095,13 @@ static void WriteAlphaTest(T& out, pixel_shader_uid_data* uid_data, API_TYPE Api
uid_data->alpha_test_logic = bpmem.alpha_test.logic;
// Lookup the first component from the alpha function table
int compindex = bpmem.alpha_test.comp0;
int compindex = uid_data->alpha_test_comp0;
out.Write(tevAlphaFuncsTable[compindex], alphaRef[0]);
out.Write("%s", tevAlphaFunclogicTable[bpmem.alpha_test.logic]); // lookup the logic op
out.Write("%s", tevAlphaFunclogicTable[uid_data->alpha_test_logic]); // lookup the logic op
// Lookup the second component from the alpha function table
compindex = bpmem.alpha_test.comp1;
compindex = uid_data->alpha_test_comp1;
out.Write(tevAlphaFuncsTable[compindex], alphaRef[1]);
if (DriverDetails::HasBug(DriverDetails::BUG_BROKENNEGATEDBOOLEAN))
@ -1148,7 +1151,7 @@ template <class T>
static void WriteFog(T& out, pixel_shader_uid_data* uid_data)
{
uid_data->fog_fsel = bpmem.fog.c_proj_fsel.fsel;
if (bpmem.fog.c_proj_fsel.fsel == 0)
if (uid_data->fog_fsel == 0)
return; // no Fog
uid_data->fog_proj = bpmem.fog.c_proj_fsel.proj;
@ -1156,7 +1159,7 @@ static void WriteFog(T& out, pixel_shader_uid_data* uid_data)
out.SetConstantsUsed(C_FOGCOLOR, C_FOGCOLOR);
out.SetConstantsUsed(C_FOGI, C_FOGI);
out.SetConstantsUsed(C_FOGF, C_FOGF + 1);
if (bpmem.fog.c_proj_fsel.proj == 0)
if (uid_data->fog_proj == 0)
{
// perspective
// ze = A/(B - (Zs >> B_SHF)
@ -1179,7 +1182,7 @@ static void WriteFog(T& out, pixel_shader_uid_data* uid_data)
// TODO Instead of this theoretical calculation, we should use the
// coefficient table given in the fog range BP registers!
uid_data->fog_RangeBaseEnabled = bpmem.fogRange.Base.Enabled;
if (bpmem.fogRange.Base.Enabled)
if (uid_data->fog_RangeBaseEnabled)
{
out.SetConstantsUsed(C_FOGF, C_FOGF);
out.Write("\tfloat x_adjust = (2.0 * (rawpos.x / " I_FOGF "[0].y)) - 1.0 - " I_FOGF "[0].x;\n");
@ -1190,14 +1193,14 @@ static void WriteFog(T& out, pixel_shader_uid_data* uid_data)
out.Write("\tfloat fog = clamp(ze - " I_FOGF "[1].z, 0.0, 1.0);\n");
if (bpmem.fog.c_proj_fsel.fsel > 3)
if (uid_data->fog_fsel > 3)
{
out.Write("%s", tevFogFuncsTable[bpmem.fog.c_proj_fsel.fsel]);
out.Write("%s", tevFogFuncsTable[uid_data->fog_fsel]);
}
else
{
if (bpmem.fog.c_proj_fsel.fsel != 2)
WARN_LOG(VIDEO, "Unknown Fog Type! %08x", bpmem.fog.c_proj_fsel.fsel);
if (uid_data->fog_fsel != 2)
WARN_LOG(VIDEO, "Unknown Fog Type! %08x", uid_data->fog_fsel);
}
out.Write("\tint ifog = iround(fog * 256.0);\n");

45
Source/Core/VideoCommon/PixelShaderGen.h
View file

@ -46,11 +46,12 @@ struct pixel_shader_uid_data
u32 per_pixel_lighting : 1;
u32 forced_early_z : 1;
u32 early_ztest : 1;
u32 late_ztest : 1;
u32 bounding_box : 1;
u32 zfreeze : 1;
u32 msaa : 1;
u32 ssaa : 1;
u32 pad : 17;
u32 pad : 16;
u32 texMtxInfo_n_projection : 8; // 8x1 bit
u32 tevindref_bi0 : 3;
@ -86,6 +87,48 @@ struct pixel_shader_uid_data
}
}
inline u32 GetTevindirefCoord(int index)
{
if (index == 0)
{
return tevindref_bc0;
}
else if (index == 1)
{
return tevindref_bc1;
}
else if (index == 2)
{
return tevindref_bc3;
}
else if (index == 3)
{
return tevindref_bc4;
}
return 0;
}
inline u32 GetTevindirefMap(int index)
{
if (index == 0)
{
return tevindref_bi0;
}
else if (index == 1)
{
return tevindref_bi1;
}
else if (index == 2)
{
return tevindref_bi2;
}
else if (index == 3)
{
return tevindref_bi4;
}
return 0;
}
struct
{
// TODO: Can save a lot space by removing the padding bits