Commit Graph

158 Commits

Author SHA1 Message Date
Gregory Hainaut 78dd957717 gsdx-ogl: use normalized index coordinate for palette texture
In palette mode, 90% of texture accesses are done in 8 bits.
So let's keep this path as light as possible. It reduces GPU load.
2015-08-20 23:01:43 +02:00
Gregory Hainaut 6b84a89b6a gsdx-ogl: remove old ati hack for point sampler
Was never used on openGL

In the future absolute coordinate will be use anyway
2015-08-18 19:09:45 +02:00
Miguel A. Colón Vélez 21c4e6caa6 Fix things found by lintian.
I: pcsx2: spelling-error-in-binary usr/lib/i386-linux-gnu/pcsx2/libGSdx-1.0.0.so allows to allows one to
I: pcsx2: spelling-error-in-binary usr/lib/i386-linux-gnu/pcsx2/libGSdx-1.0.0.so Allow to Allow one to
.
Apparently lintian checks grammar too (most common ones).
2015-08-17 22:00:07 -04:00
Gregory Hainaut bd0de8fbaf glsl: (colclip) HDR doesn't need wrapping neither clamping
Might save a couple of instruction in the PS
2015-08-08 09:18:09 +02:00
Gregory Hainaut d822b6bd1a gsdx-ogl: add some comments for the future 2015-08-08 09:17:06 +02:00
Gregory Hainaut b17803bb34 gsdx-ogl: wipeout of GL_ARB_bindless_texture
Code is completely broken. It doesn't help to improve speed.

Remove 200 lines ;)
2015-08-08 09:16:49 +02:00
Gregory Hainaut 36554c3375 Merge branch 'hdr-colclip-32bits' 2015-08-04 21:55:40 +02:00
Gregory Hainaut 45bb27d6db gsdx-ogl: extend HDR colclip to 32 bits texture
Unfortunately 16 bits wasn't enough for Castlevania.
2015-08-04 21:54:27 +02:00
Gregory Hainaut 744f9ebc09 gsdx-ogl: rare corner case when both texture shuffle and date are enabled
In texture shuffle mode the texture data is either RG or BA. It means
that DATE must either checks MSB of G or A.

Close #693
2015-08-04 20:10:44 +02:00
Gregory Hainaut 4a3c145c72 gsdx-ogl: depth support: better support of 16 bits z buffer
Fix issue in socom2
2015-08-01 01:28:41 +02:00
Gregory Hainaut cfd0fd6cc8 gsdx-ogl: remove old colclip algo 2015-07-31 09:45:28 +02:00
Gregory Hainaut 93c47feb7c gsdx-ogl: replace old colclip algo with the HDR algo
Similar speed but more accurate

Allow to clean the code
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 d191ae4aba glsl: use rounding in convert 4 shader
It will avoid texture rouding error with negative number
2015-07-30 18:22:59 +02:00
Gregory Hainaut ae8df002af gsdx-ogl: optimize Cs * As + Cd and Cs * Af + Cd blending
Basically the code does the alpha multiplication in the shader therefore
the blend unit only does a pure addition. This way the multiplication is
accurate and accurate_blending doesn't requires a costly barrier.

This code also avoid variable duplication to make the code more separated.
Hopefully blending can be done in a separated function

It is preliminary work to support fast color clipping with HDR

v2: fix assertion compilation failure

v3: fix regression in not accurate mode

v3: Cs * As/Af is not an accumulation

Those cases don't need the Cd addition and were already optimized anyway

Fix a regression on GoW2
2015-07-30 18:22:59 +02:00
Gregory Hainaut 95c374bbcc glsl: Round 0.95+ to 1 for texel colors
It improves SotC blooming. Suikoden seems to be fine too.
2015-07-30 18:21:01 +02:00
Gregory Hainaut 223b7daa1d gsdx-ogl: fix fbmask regression
I forget to remove an useless 255.0f factor
2015-07-19 23:55:27 +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 38c086008d glsl: round blending as SW renderer
Better tone on God of War with ultra accurate mode
2015-07-18 17:16:46 +02:00
Gregory Hainaut c4e165067d glsl: use signed integer when working with substraction...
It mostly fixes rendering of GoW with ultra blending

Color is still a bit wrong but rounding is likely incorrect
2015-07-18 14:41:03 +02:00
Gregory Hainaut c701ab4368 glsl: don't use normalized value for color range
Globally shader uses less intruction (except blending part)

It would also allow to improve the rounding of color
2015-07-18 14:41:03 +02:00
Gregory Hainaut 57394a03e0 partially revert: glsl: disable computing of extra alpha coeff in SW blending
It generates undefined data in screen. Maybe blending isn't switch off properly.
I need to investigate it.
2015-07-18 14:41:03 +02:00
Gregory Hainaut 036cb229a3 glsl: add various comment for future idea
For example GL4 GPU supports special bit operation
2015-07-18 14:40:57 +02:00
Gregory Hainaut 36e83b42ce glsl: round texture and fragment color as the SW renderer
GS uses integer value and does integer operation too.

This commit trunc the sampled texture, the interpoled fragment color
and the product of the 2.

It impacts negatively the perf of about 3/4% (GPU) but it fixes rendering on
suikoden and potentially some others games too.
2015-07-17 21:08:49 +02:00
Gregory Hainaut 5f247a6e16 glsl: rewrite tfx function to ease future update
No need to put lots of ifdef, compiler will optimize everything
It increases a bit the readability
2015-07-17 21:08:49 +02:00
Gregory Hainaut ea9e608288 gsdx-ogl: fix texture palette mask 2015-07-17 21:08:49 +02:00
Gregory Hainaut b4c04ed00a gsdx-ogl: wipeout subroutine code
Code was completey bitrotten
Code was a partial test (and yet 500 lines already)
Shader is more and more complex and multithreading support greatly
reduce the cost of shader switch
2015-07-17 21:08:49 +02:00
Gregory Hainaut e3751f6cd9 glsl: disable computing of extra alpha coeff in SW blending
Hum, I'm curious of the impact to enable only this code when it is actually used.
2015-07-17 21:08:49 +02:00
Gregory Hainaut 784822a5c2 glsl: redo blending management to use A/B/C/D directly
1/ Code is much more readable
2/ It will allow to round differently the operation in the future
2015-07-17 21:08:49 +02:00
Gregory Hainaut 91fbe6f108 gsdx-ogl: add some code to fix black netting on some renderings
Code is not yet enabled because it requires extensive test

The idea is to replace point by a 1 pixels sprite with the help of
a geometry shader. In 4x, point will be replaced by a 4x4 sprite.
2015-07-11 14:35:35 +02:00
Gregory Hainaut 5e7ce63ed1 glsl: add a geometry shader to upscale GS_POINT
The purpose is to avoid upscaling issue on POINT rendering (black netting on some FMVs)
2015-07-11 14:35:34 +02:00
Gregory Hainaut 986754bde7 glsl: don't declare gl_FragDepth
Fix compilation issue on Mesa driver

(hope it doesn't break Catalyst)
2015-07-05 18:12:36 +02:00
Gregory Hainaut a9f49ab9ab glsl: fix rounding error for shadow computation
Better shadow on Castlevania/Nemo (others :) )
2015-07-01 09:36:54 +02:00
Gregory Hainaut 6121677aa1 gsdx-tc: use a single shader pass to convert texture in 8 bits format
It might save a couple of fps

Add a define to test the perf if we keep only the blue channel. It brokes
the code in Prince Of Persia that use the Red/Green channel... Maybe the
speed hack :( Or find a way to replace all if with a lookup table

Note: it is only supported on OpenGL currently
2015-07-01 09:36:54 +02:00
Gregory Hainaut e2727f10ba glsl: fix for AMD
I hope :)
2015-07-01 09:36:54 +02:00
Gregory Hainaut d29e375f72 gsdx-tc: GPU accelerate 8 bits texture conversion
Only native is supported currently
2015-07-01 09:36:54 +02:00
Gregory Hainaut db5468afcf glsl: fix shadow on Shin Megami Tensei Nocturne 2015-07-01 09:36:54 +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 82818dab3c gsdx-ogl: make some room in AlphaCoefficient variable
The idea will be to use the remaining int to store the FB mask
2015-07-01 09:36:53 +02:00
Gregory Hainaut 42e911c78f gsdx-ogl: mask alpha channel in depth conversion
Might not work if depth is recasted as a rt (we lost the alpha channel)
2015-07-01 09:30:20 +02:00
Gregory Hainaut 58ce7d4bb8 gsdx-ogl: emulate texture shuffle
GS doesn't supports texture shuffle/swizzle so it is emulated in a
complex way.

The idea is to read/write the 32 bits color format as a 16 bit format.
This way, RG (16 lsb bits) or BA (16 msb bits) can be read or written with
square texture that targets pixels 1-8 or pixels 8-16.
However shuffle is limited. For example you can copy the green channel
to either the alpha channel or another green channel.

Note: Partial masking of channel is not yet implemented

V2: improve logging
V3: better support of green channel in shader
V4: improve detection of destination (issue due to rounding)
2015-07-01 09:30:20 +02:00
Gregory Hainaut 8393ba56d6 gsdx-ogl: rework palette texture handling
Redirect the red channel to alpha channel for 8 bits texture.

It avoid special management in the shader
2015-06-24 19:50:09 +02:00
Gregory Hainaut 23f8203a22 gsdx-ogl: add some shaders to convert depth <-> color
I'm afraid of rounding error
2015-06-07 12:39:00 +02:00
Gregory Hainaut 419dfe0544 glsl: redo color/alpha management correction
Please test it!

GS supports 3 formats for the output:

32 bits: normal case
=> no change

24 bits: like 32 bits but without alpha channel
=> mask alpha channel (ie don't write it anymore)
=> Always uses 1.0f as blending coefficient

16 bits: RGB5A1, emulated by a 32 bits openGL texture. I think it will be more correct to use
a real 16 bits GL texture. Unfortunately it would cost several (slow) target conversions.
Anyway as a current solution
=>  apply a mask of 0xF8 on color when SW blending is used (improve Castlevania shadow)
unfortunately normal blending mode still uses the full range of colors!

This commit also corrects a couple of blending factor. 128/255 is equivalent to 1.0f in PS2, whereas GPU uses 1.0f. So the blending factor must be 255/128 instead of 2

Note: disable CRC hack and enable accurate_colclip to see Castlevania shadow ^^
(issue #380).
Note2: SW renderer is darker on Castlevania. I don't know why maybe linked to the 16 bits format poorly emulated
2015-05-26 16:49:43 +02:00
Gregory Hainaut b0af54d33e gsdx-ogl: better support of palette
The purpose of the code is to support alpha channel
of RT uses as an index for a palette texure.

I'm afraid that code will likely break pure palette texture. Only used
if paltex is enabled

It fixes missing shadow in Star Ocean 3 (issue #374) in Native resolution
with filter = 0  (no filtering) or = 2 (normal fitering)

Rendering explanation:
The game emulates a stencil buffer with the alpha channel

The alpha channel of the RT can contains a palette texture index (format 4HH)
The idea is to have a gradient of value in the palette (16/32/48/...).
This way you can implement a +16/-16 and even wrap the alpha value every time
you hit the pixel.

Bilinear filtering breaks the rendering because it interpolates between counts
so you doesn't have the exact count

Upscaling breaks the rendering because the RT is reused as an input texture. It means
that we need to scale it down which again create some interpolations.
2015-05-24 18:07:16 +02:00
Gregory Hainaut a70c3bf5de glsl: correct the alternate implementation of ps_main1
Still not yet enabled by default

Potentially it can be optimized with the dot product but special care
need to be taken to ensure float accuracy.

Bonus: it could work on old GPU (aka DX9)
2015-05-24 13:43:36 +02:00
Gregory Hainaut 3d35e4f8ec gsdx-ogl: implement all blends mode in shader
+ 250 lines !!!
2015-05-20 09:11:36 +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 c5341a2711 gsdx-ogl: update blending management
This way it will allow to implement all blendings operartion in FS.

Of course it will be slow, but it would be nice for debug and quickly check
game error rendering.
2015-05-20 00:12:52 +02:00
Gregory Hainaut 358e0d445b gsdx-ogl: add a shader to convert depth texture into uint 2015-05-19 18:56:32 +02:00
Gregory Hainaut ec45090358 glsl: implement an alternative of convert 1 shader
Code not yet enabled. Quick test show no heavy regression but I need
to carefully validate it.
2015-05-19 13:14:18 +02:00
Gregory Hainaut 51ed3e63e9 glsl: oups forget to remove a line 2015-05-10 10:39:23 +02:00
Gregory Hainaut 5565544ba6 gsdx-ogl: DATE with texture barrier
Much faster for small batch that write the alpha value. Code can
be enabled with accurate_date option.

Here a summary of all DATE possibilities:
1/ no overlap of primitive
    => texture barrier (pro no setup of stencil and single draw)

2/ alpha written
    => small batch => texture barrier (primitive by primitive). Done in N-primitive draw calls.
    (based on GL_ARB_texture_barrier)

    => bigger batch => compute the first good primitive, slow but only 2 draw calls.
    (based on GL_ARB_shader_image_load_store)

    => Otherwise there is the UserHacks_AlphaStencil but it is a hack!

3/ alpha written
    => full setup of stencil ( 2 draw calls)
2015-05-09 19:54:01 +02:00
Gregory Hainaut 7fac25edb0 glsl: add shader implementation of impossible blend
Issue: I don't know if destination alpha value must be multiplied by 2.0f
2015-05-09 15:02:34 +02:00
Gregory Hainaut f029e4763f gsdx-ogl: add the alpha value in a constant buffer 2015-05-09 15:02:34 +02:00
Gregory Hainaut 9023f5f0db glsl: drop useless ifndef
I often mix them with the real value...
.
2015-05-08 19:28:17 +02:00
Gregory Hainaut 1addae1993 gsdx-ogl: don't use extra shader for sprite hack
Atst == 2 && sprite_hack is equivalent to Atst == 1

It frees a bit in the shader selector, and reduces shader combinations.
2015-05-08 19:28:16 +02:00
Gregory Hainaut 530e4ce776 gsdx-ogl: drop hack that rescale primitive (to avoid upscale glitch)
Rendering is bad. It renders sprites at native resolution.
2015-05-06 19:09:13 +02:00
Gregory Hainaut ae70344fbc gsdx-ogl: fix 2 passes DATE with GL42 (override_GL_ARB_shader_image_load_store = 1)
It fixes shadows issue with Persona 3
2015-05-02 16:56:18 +02:00
Gregory Hainaut 73d04e33e9 gsdx ogl: clean various comment and old code 2015-05-01 20:04:23 +02:00
Gregory Hainaut 335695bd0e purge GLES from GSdx !
mobile will use vulkan (or any new API) anyway
2015-05-01 20:02:17 +02:00
Gregory Hainaut 71e517108d gsdx-ogl: fix colclip
Sotc shadow and likely various games :)

Thanks to pseudo
2015-04-30 23:08:05 +02:00
Gregory Hainaut b65a62096f gsdx-ogl: drop support of ENABLE_OGL_DEBUG
Stencil can be read by GL debugger due to correct mask configuration
2015-04-30 20:02:51 +02:00
Gregory Hainaut eaa0dae305 glsl: drop invariant qualifier
Fix issue #510 and potentially it allows the compiler to  better optimize the code
2015-04-27 18:52:55 +02:00
Gregory Hainaut 46ff4dc3d3 gsdx-ogl: hardware unit only support normalization of 4 bytes...
(At least on recent AMD GPU)
2015-04-27 18:51:59 +02:00
Gregory Hainaut 301fe869c7 glsl: improve the logz handling
This way only 0 and 1 will conflict
2015-04-26 17:51:33 +02:00
Gregory Hainaut 6a3250cad2 gsdx-ogl: fix logz management (FFXII)
The issue is that z+1 overflow if z is UINT max
log2(z) overflow if z is 0

So let's use an or 1 to avoid both overflow
2015-04-25 20:23:26 +02:00
Gregory Hainaut 15ae9996bb glsl: format white space + comment 2015-04-25 12:50:12 +02:00
Gregory Hainaut 36514bd95f glsl: fog is a single byte
Give a chance to the driver to optimize if possible
2015-04-24 21:37:37 +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 795ae50ecd gsdx-ogl: fix the recently broken advance date feature
Now it is really working with a 2 stages shaders but it is still slow.
2015-04-24 20:13:38 +02:00
Gregory Hainaut 89d5e5637c glsl: use an explicit cast insead of notEqual function
If the compiler didn't optimize the code, it will be a bit faster
2015-04-24 18:01:25 +02:00
Gregory Hainaut 56836561f4 glsl: replace runtime condition by preprocessor condition
It might be an easier work for the compiler

I didn't replace all occurences to keep readability
2015-04-24 17:51:29 +02:00
Gregory Hainaut 62489f42f1 gsdx-ogl: add an optimization note for later
Only 1 byte of fog is useful
2015-04-20 07:18:09 +02:00
Gregory Hainaut 6d253c0b8f glsl: fix debugging of tex coordinate in apitrace 2015-04-20 07:18:08 +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 15264c6c63 glsl: split the main shader
* separate VS/GS and FS
* separate subroutine part of the FS

It already complex enough without subroutine stuff. Besides I'm not sure
we will keep subroutine on the future.
2015-04-19 18:49:02 +02:00
Gregory Hainaut 418f2e69a8 gsdx-ogl: implement the wildhack on the GPU
Likely much faster for opengl and much easier to implement

Note: hopefully UserHacks_round_sprite_offset will replace it
2015-04-13 22:14:36 +02:00
Gregory Hainaut 05eb1641f2 gsdx: add glsl debug capabilities
Useful to debug bad texture sampling
2015-04-08 10:15:25 +02:00
Gregory Hainaut e40a26be19 gsdx: add some helper to debug openGL renderer 2015-04-03 20:28:44 +02:00
Gregory Hainaut 29a14f5667 sed -i -e 's/seperately/separately/'
Thanks micove again
2014-12-07 12:46:16 +01:00
Gregory Hainaut 16284d0a59 gsdx: fix a couple of typo
From @micove
2014-12-07 12:12:53 +01:00
Gregory Hainaut d21e6ff45f gsdx-ogl: don't declare a sampler variable
Nvidia was complaining on the fxaa shader. In doubt I also replaced it in Asmodean's shader
2014-11-20 22:07:44 +01:00
Gregory Hainaut 8c90e7cafc gsdx-ogl: support latest fxaa version
Only tested on Nvidia, please report any issue with your driver

Note: requires GL4 GPU
2014-11-10 10:39:55 +01:00
Gregory Hainaut 84f844767c gsdx-ogl: micro optimize PSConstantBuffer cache
Might help to save a cache line on the CPU :)
2014-11-08 21:39:17 +01:00
Gregory Hainaut ccc1137e12 gsdx-ogl: merge the two vertex buffer format
* Only a single VAO
    => Format is set once
    => Only a single bind at startup
    => GSVertexBufferStateOGL is nearly useless
    => barely faster but better than nothing :)
2014-10-02 20:44:22 +02:00
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 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 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 0d45e6d70e gsdx-ogl: avoid to send constant to the GPU
It was a waste of bandwith
2014-04-06 10:44:40 +02:00
gregory.hainaut 384c0c12ea gsdx ogl:
* properly detect gl nv depth extension
* Always show the hack on the gui. Add a new hack option for DATE (gl4.2) only
* Save the scan mode on linux too (f7)
* hopefully fix some crash on some drivers... (ensure aligment 256 bits alignment, and if not use std memcpy)


git-svn-id: http://pcsx2.googlecode.com/svn/trunk@5888 96395faa-99c1-11dd-bbfe-3dabce05a288
2014-02-07 19:53:01 +00:00
gregory.hainaut 6f3326a9a4 gsdx ogl: Fog hide this typo :p
git-svn-id: http://pcsx2.googlecode.com/svn/trunk@5861 96395faa-99c1-11dd-bbfe-3dabce05a288
2014-02-01 10:14:01 +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 c2aa4ff3fd gsdx ogl:
* restore the old fxaa (Asmodeam will be integrated when I got time)
* port the recently added new scanline algo


git-svn-id: http://pcsx2.googlecode.com/svn/trunk@5818 96395faa-99c1-11dd-bbfe-3dabce05a288
2014-01-18 14:46:13 +00:00
gregory.hainaut 23ae6f0641 the regular copy/past mistake
git-svn-id: http://pcsx2.googlecode.com/svn/trunk@5811 96395faa-99c1-11dd-bbfe-3dabce05a288
2014-01-12 12:35:15 +00:00
gregory.hainaut 2238095a82 gsdx ogl: do the same as previous commit but for ogl ;)
* fix the missing auto interlace opt when cycling with hotkey on linux


git-svn-id: http://pcsx2.googlecode.com/svn/trunk@5810 96395faa-99c1-11dd-bbfe-3dabce05a288
2014-01-12 11:38:50 +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 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