Commit Graph

27 Commits

Author SHA1 Message Date
Gregory Hainaut e40a26be19 gsdx: add some helper to debug openGL renderer 2015-04-03 20:28:44 +02:00
Gregory Hainaut 920ac6695f gsdx-ogl: add preliminary support of external shader fx 2014-11-10 10:37:58 +01:00
Gregory Hainaut d37cc8e1e7 gsdx-ogl: GL_ARB_shading_language_420pack is now mandatory
All API/drivers support it so time to remove the fallback.
2014-10-02 20:44:22 +02:00
Gregory Hainaut f46e8cc6ac gsdx-ogl: bump base requirement to 3.3
A couple of fallbacks were introduced for the Mesa driver that only support 3.0
DSA will require a recent Mesa which already support GL3.3

Require at least SandyBridge for Intel GPU
2014-09-30 22:18:20 +02:00
Gregory Hainaut 594f6c33a2 gsdx-ogl-ES: require GL_EXT_shader_io_blocks + GLES3.1
Allow to use same shader interface for all API

Note: on the GL API it will require GL3.3 (see next commit)
2014-09-30 22:18:01 +02:00
Gregory Hainaut 9d8d702aa6 gsdx-ogl: drop GL_NV_depth_clamp extension
superseeded by GL_ARB_clip_control
2014-09-28 12:00:34 +02:00
Gregory Hainaut 4659184cc1 gsdx-ogl: add support of clip_control (depth only)
* replace the [-1;1] depth range of openGL with the DX range [0;1].
2014-09-28 12:00:34 +02:00
Gregory Hainaut 104688e3ee gsdx-ogl: fix ARB_bindless support 2014-09-28 12:00:34 +02:00
Gregory Hainaut 22b65489e2 gcc warning: constify const string 2014-05-03 10:18:27 +02:00
Gregory Hainaut ea25d12405 gsdx-gles: nvidia driver quick trial (only GLES3.0)
* Fix to create a 3.0 GLES context
* set a default precision to fix most of shader compilation issue
* Crash later because of GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT
    => need to test opensource driver
2014-04-12 12:40:23 +02:00
Gregory Hainaut b020bd76c6 gsdx-ogl: restore gles build
Add the --gles build option to the linux main script
Ifdef all gl code not supported on gles3 (note some will be reenabled for gles3.1)

Note: it probably doesn't run anymore. My Nvidia driver doesn't support
yet egl/gles so I can't test it. Feel free to contribute.
2014-03-29 11:55:02 +01:00
gregory.hainaut c0558c00e7 gsdx ogl:
* gui refresh
  + Use some tab to reduce heigth for small screen
  + Add logz option
  + remove broken/experimental keyword. GSdx ogl is not too bad ;)
* autodetect GL_NV_depth_buffer_float

Linux tester you are welcome!



git-svn-id: http://pcsx2.googlecode.com/svn/trunk@5862 96395faa-99c1-11dd-bbfe-3dabce05a288
2014-02-01 11:11:14 +00:00
gregory.hainaut 84895eadd9 gsdx ogl: correct most of Z-depth issue
Best setting if you driver support GL_NV_depth_buffer_float => GL_NV_Depth = 1 & logz = 0
Otherwise => GL_NV_Depth = 0 & logz = 1

Explanation of the bug:
Dx z position ranges from 0.0f to 1.0f (FS ranges 0.0f to 1.0f)
GL z Position ranges from -1.0f to 1.0f (FS ranges 0.0f to 1.0f)

Why it sucks:
GS small depth value will be "mapped" to -1.0f. In others all small values will be 1.0f! Terrible lost
of accuraccy.

The GL_NV_depth_buffer_float extension allow to set the near plane as -1.0f.
So
"GL z Position ranges from -1.0f to 1.0f (FS ranges 0.0f to 1.0f)"
will become
"GL z Position ranges from -1.0f to 1.0f (FS ranges -1.0f to 1.0f)"
and therefore
"z posision [0.0f;1.0f] will map to FS [0.0f;1.0f]" as DX

Yes we just get back all precision lost previously :)
However you need hardware (intel?) and driver support (free driver?/gles?) :(





git-svn-id: http://pcsx2.googlecode.com/svn/trunk@5860 96395faa-99c1-11dd-bbfe-3dabce05a288
2014-01-31 21:30:54 +00:00
gregory.hainaut f5257b2c3c gsdx ogl: don't rely on GL_ES builtin (3 differents implementations...). Hopefully fix Linux Intel GPU.
git-svn-id: http://pcsx2.googlecode.com/svn/trunk@5808 96395faa-99c1-11dd-bbfe-3dabce05a288
2014-01-11 15:01:13 +00:00
gregory.hainaut 33832b4479 gsdx ogl: Intel driver keep the GL_ES macro undefined...
git-svn-id: http://pcsx2.googlecode.com/svn/trunk@5785 96395faa-99c1-11dd-bbfe-3dabce05a288
2013-12-30 14:48:26 +00:00
gregory.hainaut e80b002929 gsdx ogl: Flush various pending work
* try to use more subroutine on VS&PS, unfortunately hit a driver crash!
* Call Attach/DetachContext through GSDevice so I can unmap currently mapped buffer
* Implement glsl part of GL_ARB_bindless texture, again hit another driver crash!
* various fix of GL_ARB_buffer_storage. Basic benchmark show only improvement on 'cold' case, I guess it will improve smoothness
* try to fix GL_clear_texture, no success so far. It seem the extension is limited to basic texture (aka no depth/stencil)



git-svn-id: http://pcsx2.googlecode.com/svn/trunk@5752 96395faa-99c1-11dd-bbfe-3dabce05a288
2013-10-24 20:54:27 +00:00
gregory.hainaut e01c6cd9ce gsdx ogl: the proof of concept commit
* GL_ARB_shader_subroutine for perf
fix for nvidia => add missing shader declaration. Nvidia got +4fps on colin3 :) 

For the moment only 2 PS parameters are supported. Code need to be extended to support others games that often
switch shader program (like xenosaga).
require GL4 class hardware and the option override_GL_ARB_shader_subroutine = 1
Note: strangely on AMD linux it is slower!

* GL_ARB_shader_image_load_store for accuraccy (Date)
Use a signed integer texture and reenable color buffer writing

Current status: Amagami_transparency.gs & P3_battle_shadows.gs are now working on Nvidia with a small perf impact.
Current implementation detail:
1/ setup the standard stencil as before
2/ on remaining pixel, draw once to compute first primitive that will write a fail alpha value.
3/ final draw based on primitive id of step 2

Note: I think we would get a bad behavior if depth test&mask are enabled on step 2/3
Note2: on my limited testcase the perf impact was on CPU. It would be possible to merge step1&2 to nullifying it (could 
even be faster actually), however it would require more GPU power.

Again require GL4 class hardware. And the option UserHacks_DateGL4 = 1



git-svn-id: http://pcsx2.googlecode.com/svn/trunk@5725 96395faa-99c1-11dd-bbfe-3dabce05a288
2013-08-28 08:44:16 +00:00
gregory.hainaut 07605941ef gsdx ogl:
* some preliminary work to test/benchmark bindless texture in the future (glsl was not yet updated)
Bindless texture allow to get a GPU texture pointer and then set it directly
to the shader as a basic uniform.
=> no more texture unit selection/validation
=> no more texture validation neither texture hash lookup

3rdparty: update gl header to the latest gl4.4


git-svn-id: http://pcsx2.googlecode.com/svn/trunk@5720 96395faa-99c1-11dd-bbfe-3dabce05a288
2013-08-17 08:57:52 +00:00
gregory.hainaut 0f603a98d5 gsdx ogl: Test the ARB_shader_subroutine GL4.0 extension
The idea was to replace shader program swith by pointer function calls inside
shaders.  At least parameters that are often changed between draw call. So far
I only ported atst and colclip. Unfortunately code is "slower" (on GSdx standalone).
For the moment keep the code but disabled.

If I understand well the validation of program is done in the "driver thread"
but the additional call are done in the overloaded MTGS thread. Apitrace
profiling shows faster GPU draw calls. Another possibility is that the driver still
need to validate the draw call because of others state change.

Here some stats on colin3 (90 frames):
without subroutine: UseProgram 125246
with subroutine: UseProgram 2906, subroutine 125945 => 3605 extra calls overhead (not
all parameters are ported to subroutine)



git-svn-id: http://pcsx2.googlecode.com/svn/trunk@5715 96395faa-99c1-11dd-bbfe-3dabce05a288
2013-08-10 19:43:59 +00:00
gregory.hainaut a46b489a24 gsdx ogl: various minor optimization.
* move most of gl states into a separate namespace. Extend it to depth/stencil/blend micro state
=> save 10,000 opengl call by frame for colin mcrae 3
* Only setup blend state of first drawbuffer
* Don't request anymore a debug context on dev/release build



git-svn-id: http://pcsx2.googlecode.com/svn/trunk@5713 96395faa-99c1-11dd-bbfe-3dabce05a288
2013-08-05 20:25:25 +00:00
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 d3e1e4da0d gsdx ogl:
* allow to switch renderer with F9
* skip first frame in stat of the replayer
* drop msaa. Fxaa and internal resolution will do the job
* move texture attachment from texture object into device object (allow to keep sanely the state)
* split the write buffer and attachment setup
* completely split sampler and texture input setup
* redo GSDeviceOGL::CopyOffscreen to avoid an extra copy.



git-svn-id: http://pcsx2.googlecode.com/svn/trunk@5704 96395faa-99c1-11dd-bbfe-3dabce05a288
2013-07-19 19:25:50 +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 bd5f379044 gsdx ogl:
* uniform was wrongly set before the activation of the program (free driver only)
* Always use only 1 drawbuffer. Easier besides previous setup was wrong for convert:ps_main1

GLES trial (v3):
* add the cmake option GLES_API. Note library (libgles) are hardcoded for the moment
* Disable opengl check
* Disable gl_GetDebugMessageLogARB not supported!
* Emulate gl_DrawElementsBaseVertex, add manually the index offset (surely slow but work)
* Fix hundred of shader error (no implicit cast of integer to float...)
Unfortunately GLES doesn't support dual blending so no blend in hardware renderer. Otherwise it is fine




git-svn-id: http://pcsx2.googlecode.com/svn/trunk@5700 96395faa-99c1-11dd-bbfe-3dabce05a288
2013-07-12 21:12:34 +00:00
gregory.hainaut a764950468 gsdx ogl:
* replace vertex interface with block interface. It avoid to depends on the ARB_sso extension.
* disable geometry shader on Nvidia & Linux. Slower but better than a black screen !
* default logz to 1, avoid some glitches.


git-svn-id: http://pcsx2.googlecode.com/svn/trunk@5699 96395faa-99c1-11dd-bbfe-3dabce05a288
2013-07-11 17:08:42 +00:00
gregory.hainaut f22b366cea gsdx:
* redo glsl2h.pl script to generate only one big glsl headers.
* fix gcc warning in GSVector.h
* fix memory leak of GSDeviceOGL.m_shader
* clean shader compilation function => split generation header & drop malloc stuff
cmake:
* only rebuild shader when asked by the use. Avoid perl dependency to build pcsx2


git-svn-id: http://pcsx2.googlecode.com/svn/trunk@5698 96395faa-99c1-11dd-bbfe-3dabce05a288
2013-07-07 16:13:11 +00:00
gregory.hainaut dc036ff59d gsdx: split shader/program/pipeline object management into a separate class
* remove the possibility to compile shader from file. Some people loads older shaders...
  The feature might be readded later


git-svn-id: http://pcsx2.googlecode.com/svn/trunk@5697 96395faa-99c1-11dd-bbfe-3dabce05a288
2013-07-06 10:08:52 +00:00