mirrors/dolphin
0
0
Fork 0
mirror of https://github.com/dolphin-emu/dolphin.git synced 2025-08-10 10:08:51 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

OGL: implement bounding box support with ssbo

Browse source 
This implemention tries to be as accurate as the old SW implemention, but it will remove the dependcy of our vertexloader on videosw.
This commit is contained in:
degasus 2014-11-13 23:26:49 +01:00
commit c211450b99
24 changed files with 231 additions and 7 deletions
Download patch file Download diff file Expand all files Collapse all files

22
Source/Core/VideoCommon/PixelShaderGen.cpp
View file

@ -10,6 +10,7 @@
#include <xlocale.h>
#endif
#include "VideoCommon/BoundingBox.h"
#include "VideoCommon/BPMemory.h"
#include "VideoCommon/ConstantManager.h"
#include "VideoCommon/LightingShaderGen.h"
@ -264,6 +265,16 @@ static inline void GeneratePixelShader(T& out, DSTALPHA_MODE dstAlphaMode, API_T
"\tfloat4 " I_DEPTHPARAMS";\n"
"};\n");
}
if (g_ActiveConfig.backend_info.bSupportsBBox)
{
out.Write(
"layout(std140, binding = 3) buffer BBox {\n"
"\tint4 bbox_data;\n"
"};\n"
);
}
const bool forced_early_z = g_ActiveConfig.backend_info.bSupportsEarlyZ && bpmem.UseEarlyDepthTest() && (g_ActiveConfig.bFastDepthCalc || bpmem.alpha_test.TestResult() == AlphaTest::UNDETERMINED);
const bool per_pixel_depth = (bpmem.ztex2.op != ZTEXTURE_DISABLE && bpmem.UseLateDepthTest()) || (!g_ActiveConfig.bFastDepthCalc && bpmem.zmode.testenable && !forced_early_z);
@ -551,6 +562,17 @@ static inline void GeneratePixelShader(T& out, DSTALPHA_MODE dstAlphaMode, API_T
out.Write("\tocol0.a = float(" I_ALPHA".a) / 255.0;\n");
}
if (g_ActiveConfig.backend_info.bSupportsBBox && BoundingBox::active)
{
uid_data->bounding_box = true;
out.Write(
"\tif(bbox_data.x > int(gl_FragCoord.x)) atomicMin(bbox_data.x, int(gl_FragCoord.x));\n"
"\tif(bbox_data.y < int(gl_FragCoord.x)) atomicMax(bbox_data.y, int(gl_FragCoord.x));\n"
"\tif(bbox_data.z > int(gl_FragCoord.y)) atomicMin(bbox_data.z, int(gl_FragCoord.y));\n"
"\tif(bbox_data.w < int(gl_FragCoord.y)) atomicMax(bbox_data.w, int(gl_FragCoord.y));\n"
);
}
out.Write("}\n");
if (is_writing_shadercode)