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Make a number of key optimizations

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- Changed glMapBuffer to glMapBufferRange to allow invalidation.  Using
   just glMapBuffer alone was causing some unacceptable stalls.

 - Changed dynamic buffers from GL_DYNAMIC_WRITE to GL_STREAM_WRITE
   because I had misunderstood the OpenGL specification

 - Added _OPENGL and _D3D11 builtin preprocessor macros to effects to
   allow special processing if needed

 - Added fmod support to shaders (NOTE: D3D and GL do not function
   identically with negative numbers when using this.  Positive numbers
   however function identically)

 - Created a planar conversion shader that converts from packed YUV to
   planar 420 right on the GPU without any CPU processing.  Reduces
   required GPU download size to approximately 37.5% of its normal rate
   as well.  GPU usage down by 10 entire percentage points despite the
   extra required pass.
This commit is contained in:
jp9000
2014-02-16 19:28:21 -07:00
parent fc368f663e
commit 2dbbffe4a2
21 changed files with 470 additions and 24 deletions
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vs/2013/OBS.sln
+3
View File
@@ -39,6 +39,8 @@ Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "obs-ffmpeg", "obs-ffmpeg\ob
EndProject
Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "obs-studio", "obs-studio\obs-studio.vcxproj", "{B12702AD-ABFB-343A-A199-8E24837244A3}"
EndProject
Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Solution Items", "Solution Items", "{6AE25DF7-A903-48AD-8DA4-9902010AEB11}"
EndProject
Global
GlobalSection(SolutionConfigurationPlatforms) = preSolution
Debug|Win32 = Debug|Win32
@@ -102,6 +104,7 @@ Global
{76226D20-1972-4789-A595-EDACC7A76DC3}.Release|Win32.ActiveCfg = Release|Win32
{76226D20-1972-4789-A595-EDACC7A76DC3}.Release|Win32.Build.0 = Release|Win32
{76226D20-1972-4789-A595-EDACC7A76DC3}.Release|x64.ActiveCfg = Release|Win32
{76226D20-1972-4789-A595-EDACC7A76DC3}.Release|x64.Build.0 = Release|Win32
{36970254-B1E5-4BE6-A561-301B6E7CDCE3}.Debug|Win32.ActiveCfg = Debug|Win32
{36970254-B1E5-4BE6-A561-301B6E7CDCE3}.Debug|Win32.Build.0 = Debug|Win32
{36970254-B1E5-4BE6-A561-301B6E7CDCE3}.Debug|x64.ActiveCfg = Debug|x64