Commit Graph

47 Commits

Author SHA1 Message Date
Gregory Hainaut 0d25a0592a gsdx-ogl: fast blending accurate hack
The hack relies on the undefined behavior of the hardware so it can
potentially generate rendering corruption.

This new hack drops the cache flusing when only the alpha channel is masked.
Alpha is a direct copy of the fragment. Normally masked bits will be constant
everywhere (RT, FS output, texture cache) so it would likely work.

Just in case, code is only enabled with the new shiny hack
2016-01-03 15:39:45 +01:00
Gregory Hainaut 87f497af0a gsdx-ogl: remove an useless variable 2015-08-15 20:06:34 +02:00
Gregory Hainaut 4d12410707 gsdx-ogl: latch constant buffer in rendering object
* Initialization of the object is done once
* Avoid to reupload it when an useless parameter toggle
 => -10% of UBO update
2015-08-08 09:18:09 +02:00
Gregory Hainaut b7e16b5989 gsdx-ogl: clean the blending management
Intially GSBlendStateOGL was an alias of the m_blendMapD3D9 array

The object was replaced by an index in the array. Save 2k of memory duplication.
And too much useless code.

v2: push/pop blending state in DATE stuff
v3: remove m_state which is useless now
2015-08-05 22:55:12 +02:00
Gregory Hainaut a0edcb58af gsdx-ogl: extend cclip blending level with destination alpha blending
The purpose is to emulate correctly destination alpha factor

An alpha channel of 128 is 1.0 in the GS but only ~0.5 in the GPU

I think few draw call use destination alpha so impact on perf must remains small.
2015-07-31 09:45:28 +02:00
Gregory Hainaut 25298c70f7 gsdx-ogl: move blending management into a separate function 2015-07-31 09:45:28 +02:00
Gregory Hainaut e026f1bac6 gsdx-ogl: implement a fast accurate colclip algo
The idea is to use a floating texture to accumulate the data and
then do a final postprocessing pass to apply the modulo

v2:
* use bounding box to
* fix vertex corruption issue
* use negative number in shader which allow to use half float (+12
  fps@4x)
2015-07-30 18:34:52 +02:00
Gregory Hainaut caadc73e1b gsdx-ogl: add a new level for accurate blending
The updated medium level will run for all sprites. It helps sotc blooming effect and it remains
fast enough to be enabled by default (at least on 3D games)
The new high level will run for all sprites + color clipping
2015-07-30 18:21:01 +02:00
Gregory Hainaut a85894e159 gsdx-ogl: move texture shuffle and fbmask into a dedicated function
DrawPrims is really too big now
2015-07-30 18:21:01 +02:00
Gregory Hainaut 8c8fe633a5 gsdx-ogl: merge 3 accurate* option into a nice combobox
It is much easier to configure this way
2015-07-30 18:21:00 +02:00
Gregory Hainaut 8da63cf95a gsdx-ogl: try to enable sw blending for sprite rendering
The idea is that sprites are often use for post-processing effect (ofc except 2D games)

Most of the time post-processing supports SW blending with a small speed penality. SW
blending is more accurate so it is better to use it.
2015-07-30 18:21:00 +02:00
Gregory Hainaut 5c740ff41e gsdx-ogl: wipeout AlphaStencil & Alpha hack
Accurate options do a better jobs. Technically it can still
be useful for old gpu/driver that doesn't support the GL4.5 extension.

On Windows, you can still rely on Dx

On linux, free driver support it (except Intel)
2015-07-19 22:43:48 +02:00
Gregory Hainaut 839003467e gsdx-ogl: add support of partial frame buffer masking
It might help to fix a bit the color on a couple of games

accurate_fbmask = 1

Code uses GL4.5 extensions. So far it seems the effect is ony used a couple
of time and often in non-overlapping primitive. Speed impact will likely remain small
2015-07-01 09:36:53 +02:00
Gregory Hainaut c1d39a5f57 gsdx-ogl: drop UserHacks_DateGL4
Initial goal was to avoid slowdown in buggy driver
2015-06-16 09:57:45 +02:00
Gregory Hainaut 3dd3bf6e2b gsdx-ogl: new hidden option accurate_blend = 2
Debug option to emulate all blending draw call in the shader

Of course it is slow but it is very accurate
2015-06-03 09:56:07 +02:00
Gregory Hainaut 8d3e3e6c5b gsdx-ogl: more blend rework to support accurate_colclip
So far few blending equations are implemented in PS. It is only
for test the behavior on GoW
2015-05-20 08:00:40 +02:00
Gregory Hainaut 921fa3bab8 gsdx-ogl/linux: drop fba option
It is useless as DX11
2015-05-11 13:57:26 +02:00
Gregory Hainaut 1e8aea033c gsdx-ogl: add a wrapper to control the drawing of primitives
No barrier => draw all primitives
Barrier but without overlap => draw all primitives
Barrier with overlap => draw primitive by primitve

It will ease the implementation of accurate blending and why not date too
2015-05-09 15:01:39 +02:00
Gregory Hainaut 3c66da4d82 gsdx: remove old code 2015-05-08 19:28:16 +02:00
Gregory Hainaut b490085214 gsdx-ogl: add 2 options in the GUI to ease testing
accurate_date => use an emulated stencil to compute destination alpha
    test (could be slow)

accurate_blend => do nothing (future)
2015-05-08 19:28:16 +02:00
Gregory Hainaut 73d04e33e9 gsdx ogl: clean various comment and old code 2015-05-01 20:04:23 +02:00
Gregory Hainaut c207632e49 gsdx-ogl: improve date performance for GL45
If there is no overlap, it is allowed to directly read from the render target.

On SotC testcase with 6x scaling: 30fps -> 40fps

Note: it requires GL_ARB_texture_barrier extension so be sure to have a recent driver

Note2: it requires a lots of testing too

Open question: in case of complex date (written alpha)
Will it be faster to split the draw call into multiple call with no
primitive overlap
2015-04-24 21:12:33 +02:00
Gregory Hainaut 31f8c065db gsdx-ogl: implement a new hack UserHacks_UnscaleSprite for opengl
UserHacks_UnscaleSprite = 1 will unscale flat sprites
UserHacks_UnscaleSprite = 2 will unscale all  sprites (don't work well so far)

The idea of the hack is to redo the interpolation of texture coordinate
based on the non-upscaled pixel position.

It avoids various glitches but sprites aren't upscaled anymore (so no
more anti-aliasing, potentially a coefficient can be added).
2015-04-20 07:18:08 +02:00
Gregory Hainaut 6124eb844e gsdx-ogl: only compile useful VS
logz is a constant
wildhack is only compatbile with TME/FST

Compilation goes down from 64 to 20 vertex shaders.
2015-04-20 07:17:58 +02:00
gregory.hainaut e394de86dc gsdx ogl:
* add a non-working hack: UserHacks_DateGL4, goal was to replace UserHacks_AlphaStencil
 + Detection of good/bad samples is based on primitive ID variable. However I'm not sure
 the behavior is always the same between draw call...Anyway let's keep a copy of the current
 work
* Dump integer texture into text csv
* add gl4.2 ARB_shader_image_load_store extension (needed by UserHacks_DateGL4)


git-svn-id: http://pcsx2.googlecode.com/svn/trunk@5707 96395faa-99c1-11dd-bbfe-3dabce05a288
2013-07-28 14:40:43 +00:00
gregory.hainaut 916a091f8a gsdx ogl: GLes
* use gles header file, disable opengl code (mainly GLX, ARB_sso, geometry shader)
* Define properly the function pointer, GLES use basic linking whereas GL must get the symbol dynamically
* cmake: properly search and set libglesv2.so
* don't use dual source blending => HW renderer work (only miss unimportant FBA)



git-svn-id: http://pcsx2.googlecode.com/svn/trunk@5701 96395faa-99c1-11dd-bbfe-3dabce05a288
2013-07-13 11:39:45 +00:00
gregory.hainaut 19961175c9 gsdx-ogl-wnd: port (minor) renderer update of r5649 to opengl
Now the brach is ready to be merged :)

Dears Window users. If you can test that:
1/ still compile
2/ still running on DX
3/ can run with opengl


git-svn-id: http://pcsx2.googlecode.com/svn/branches/gsdx-ogl-wnd@5663 96395faa-99c1-11dd-bbfe-3dabce05a288
2013-06-15 09:24:13 +00:00
gregory.hainaut 75418aba43 gsdx-ogl-wnd:
* Emulate Geometry Shader from the CPU.
* add some option to override opengl extension detection
* redo shader interface (again) to compile on the free driver

SW renderer is now working on the free driver.

To test it on your linux box use this cmake option -DEGL_API=TRUE
Note: (need opengl 3.0) I test mesa 9.2 git



git-svn-id: http://pcsx2.googlecode.com/svn/branches/gsdx-ogl-wnd@5646 96395faa-99c1-11dd-bbfe-3dabce05a288
2013-05-27 16:53:38 +00:00
gregory.hainaut d3d9b520f0 gsdx ogl:
* port KrossX patch from r5556 to openGL
* add a basic gui entry, would love an additional description
* also add the pointsampler hack but don't activate it yet


git-svn-id: http://pcsx2.googlecode.com/svn/trunk@5570 96395faa-99c1-11dd-bbfe-3dabce05a288
2013-02-23 15:35:56 +00:00
gregory.hainaut e06484adb8 gsdx: update the copyrigh address thank to sed
git-svn-id: http://pcsx2.googlecode.com/svn/trunk@5412 96395faa-99c1-11dd-bbfe-3dabce05a288
2012-09-09 18:16:11 +00:00
gregory.hainaut b70c5eb8b7 gsdx ogl: incorporate DX sudonim's changes on ogl
git-svn-id: http://pcsx2.googlecode.com/svn/trunk@5375 96395faa-99c1-11dd-bbfe-3dabce05a288
2012-08-15 10:14:13 +00:00
gregory.hainaut 6fd47b2907 gsdx-ogl: * implement shadeboost (only test the compilation)
Note: gui must be updated with new user hack


git-svn-id: http://pcsx2.googlecode.com/svn/branches/gsdx-ogl@5181 96395faa-99c1-11dd-bbfe-3dabce05a288
2012-04-26 21:42:16 +00:00
gregory.hainaut 92f2ab38ae GSdx-ogl: LINUX only
* Use the new map interface/separate texture coordinate inside shader
* support new format on texture

Note: it is quite instable with various crashes and GL error but at least it compiles now :p 


git-svn-id: http://pcsx2.googlecode.com/svn/branches/gsdx-ogl@5094 96395faa-99c1-11dd-bbfe-3dabce05a288
2012-02-11 10:22:02 +00:00
gregory.hainaut 86a9910027 gsdx-ogl: linux only
compilation fix, add bits for the index buffer.
current status is blackscreen :p


git-svn-id: http://pcsx2.googlecode.com/svn/branches/gsdx-ogl@5070 96395faa-99c1-11dd-bbfe-3dabce05a288
2012-01-15 17:25:49 +00:00
gregory.hainaut aa499f4bfd gsdx-ogl: LINUX-ONLY
* fix vertex shader for HW renderer :) Remains the fragment part...
* add some dumping infrastucture (DUMP_START and DUMP_LENGTH)


git-svn-id: http://pcsx2.googlecode.com/svn/branches/gsdx-ogl@5030 96395faa-99c1-11dd-bbfe-3dabce05a288
2011-12-29 14:24:26 +00:00
gregory.hainaut 83ad63a8a7 gsdx-ogl: LINUX-ONLY
* lay the foundation for the HW renderer on OGL


git-svn-id: http://pcsx2.googlecode.com/svn/branches/gsdx-ogl@4996 96395faa-99c1-11dd-bbfe-3dabce05a288
2011-12-19 21:03:23 +00:00
gregory.hainaut da66ca7fd9 gsdx-ogl: preliminary work of an opengl backend. So far only skeleton and various note.
Current goal is to implement the SW render with pure opengl instead of SDL.
I plan to use OpenGL4.2 capability (the latest actually) => need libglew1.7 and a Dx11 capable GPU/drivers.


git-svn-id: http://pcsx2.googlecode.com/svn/branches/gsdx-ogl@4970 96395faa-99c1-11dd-bbfe-3dabce05a288
2011-11-16 22:17:37 +00:00
sudonim1 8c0fc49f61 GSdx: Removed DX10 support in favour of DX11. I am told that this shouldn't affect anyone and it reduces code duplication. (DX11 was already missing some changes in DX10, I have ported them.)
GSdx: Removed OpenGL "support".  Nobody showed any interest in getting this working.
GSdx: Removed PS1 GPU support.  pcsx2 does not use this and it is unmaintained, likely broken, and frequently confuses intellisense.
GSDumpGUI: Use the correct export for the library name, was using the PS1 version.

If any of the above code is needed in the future, we have this wonderful technology called version control.

git-svn-id: http://pcsx2.googlecode.com/svn/trunk@2754 96395faa-99c1-11dd-bbfe-3dabce05a288
2010-03-19 20:27:06 +00:00
Jake.Stine 0f77c1a885 GSdx: Possible fix for DX10 leaking memory.
git-svn-id: http://pcsx2.googlecode.com/svn/trunk@2042 96395faa-99c1-11dd-bbfe-3dabce05a288
2009-10-20 11:44:43 +00:00
Jake.Stine 27af8d80ca GSopen2: Simplified the multithreaded and irq callback parameter passing scheme, and made them more "robust" so that they can be changed dynamically without the GS exploding (important with the new correct GSState preservation across open/close).
git-svn-id: http://pcsx2.googlecode.com/svn/branches/GSopen2@1860 96395faa-99c1-11dd-bbfe-3dabce05a288
2009-09-18 19:54:56 +00:00
Jake.Stine 73a39b012c GSopen2: Fixed a bug in gsdx where it didn't properly handle changes to the GS base register memory pointer.
git-svn-id: http://pcsx2.googlecode.com/svn/branches/GSopen2@1858 96395faa-99c1-11dd-bbfe-3dabce05a288
2009-09-18 18:45:37 +00:00
Jake.Stine e4c0dfb6d3 GSopen2: Fixed GSdx so that it complies with the implied intent of the PS2E plugin API, where GSopen and GSclose retain the current GS emulation state. This required a couple significant changes:
* Removed GSTextureFX classes
 * Built shaders right into GSState classes, using GSStateDX as an interface, so that all shader caches get auto-destroyed along with GSState.

In addition to being a bit of a code cleanup, it should be a bit more efficient too since all of the extra dereferences to GSState from GSTextureFX have been removed. :)

git-svn-id: http://pcsx2.googlecode.com/svn/branches/GSopen2@1849 96395faa-99c1-11dd-bbfe-3dabce05a288
2009-09-18 00:16:52 +00:00
Jake.Stine 8de579954f GSopen2: Current status...
* Software mode seems to work fine.  Suspend and resume emulation work nicely, without flaws.
 * Hardware DX9 mode suspends but displays only black after resuming.
 * Hardware DX10 status is unknown.

git-svn-id: http://pcsx2.googlecode.com/svn/branches/GSopen2@1842 96395faa-99c1-11dd-bbfe-3dabce05a288
2009-09-17 07:40:38 +00:00
gabest11 83b15dbac0 GSdx:
- trying the dx10.1-only "gather" shader instruction for palletized lookups ("8-bit texture" mode), saves 4 instructions which isn't much but still... (not tested, don't have ati)
- may fix the intel gma "no output" bug (don't have gma either :P)
- and the usual small code optimizations


git-svn-id: http://pcsx2.googlecode.com/svn/trunk@1549 96395faa-99c1-11dd-bbfe-3dabce05a288
2009-07-22 03:55:28 +00:00
gabest11 4a7304d6f7 GSdx: added ltrapper's modifications.
git-svn-id: http://pcsx2.googlecode.com/svn/trunk@1538 96395faa-99c1-11dd-bbfe-3dabce05a288
2009-07-17 23:45:32 +00:00
gabest11 7bb9a3cc25 GSdx: changed a lot of things, expect new bugs :P
git-svn-id: http://pcsx2.googlecode.com/svn/trunk@1439 96395faa-99c1-11dd-bbfe-3dabce05a288
2009-06-27 03:32:33 +00:00
gabest11 5736bbd449 GSdx: looking for an opengl guru...
git-svn-id: http://pcsx2.googlecode.com/svn/trunk@1360 96395faa-99c1-11dd-bbfe-3dabce05a288
2009-06-12 19:09:17 +00:00