Commit Graph

365 Commits

Author SHA1 Message Date
Gregory Hainaut 78569ee833 gsdx-ogl: redo properly the setup of texture format
* add lengthly comment to explain the format
* Likely reduce the number of shader permutation
* Avoid slow AEM (on GPU)

Expect regressions because TC needs some fixes

v2: fix palette mode
2015-09-11 14:14:22 +02:00
Gregory Hainaut ddc03cbccf gsdx: add a nice enum to replace the hardcoded convert shader 2015-09-08 16:51:24 +02:00
Gregory Hainaut ca9b5ce11d gsdx-ogl: move depth conversion shader
Add 2 new shaders:
* ps_main12: cast a 16 bit depth to a RGB5A1 color
* ps_main16: cast a a RGB5A1 color to a 16 bit depth

Shader might be used in future commit as it seems Silent Hill uses this
kind of format.

Fix tab/indentation too
2015-09-08 12:41:05 +02:00
Jonathan Li 6e826d5193 Merge pull request #754 from ssakash/patch-45
gsdx: little changes on AF value behavior.
2015-08-21 11:29:49 +01:00
Akash 3c9ca799a6 Remove anisotropic filtering checkbox value.
Removes the checkbox of Anisotropic filtering from the GSDX plugin settings, the checkbox was usually used to enable & disable the AF which is not necessary since there is an option in the drop down list for disabling AF.
the internal function value of "AnisotropicFiltering" has been replaced with "MaxAnisotropy" for detection.
the detection uses the function getconfig("MaxAnisotropy", value)  where value 0 means disabled and value is the default value when no value is set in the INI file.
2015-08-21 09:45:00 +05:30
Gregory Hainaut 53d1fdd8f1 glsl:debug: disable fst when testing texturing shader
Reduce clutter in ASM dump
2015-08-20 23:01:43 +02:00
Gregory Hainaut 260c12756a gsdx-ogl: accelerate Cd - Cs * Alpha in sw blending
It is similar as Cd + Cs * Alpha except the operator

It would help to emulate other color clipping case correctly in basic
mode at full speed
2015-08-16 18:12:34 +02:00
Gregory Hainaut c7b2f9d1d2 gsdx-ogl: setup fbo to always write to first buffer
GL_NONE was kind of useless because nothing was attached anyway
2015-08-15 20:06:34 +02:00
Gregory Hainaut 87dcb9336f gsdx-ogl: don't bind the 0 texture to be compatible with the Nvidia debugger 2015-08-13 09:57:51 +02:00
Gregory Hainaut 6046d6c417 Merge pull request #749 from PCSX2/gsdx-micro-optimization
Gsdx micro optimization
2015-08-12 08:54:36 +02:00
Gregory Hainaut 98c74879bf Merge pull request #718 from PCSX2/depth-color-direct-write
Depth color direct write
2015-08-10 15:50:48 +02:00
Gregory Hainaut 61694013a5 gsdx-ogl: compact blending parameter structure
Save 656B of data. It is good for the cache.
2015-08-09 13:44:30 +02:00
Gregory Hainaut df3ade896b gsdx-ogl: use integer for blend factor
Integer argument&comparison might be lighter

V2: Forget to change one OMSetBlendState call
2015-08-09 13:44:05 +02:00
Gregory Hainaut 5b57405517 gsdx-ogl: blend management cleanup
* reorder the blend function
* remove OM bsel object
* add a bit to support pabe (miss the glsl part)
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 921b22ac31 gsdx-ogl: drop useless parameter of OMSetDepthStencilState 2015-08-05 22:55:12 +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 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 3784ea768f gsdx: check null pointer when doing a texture clear 2015-08-04 19:26:17 +02:00
Gregory Hainaut e972f4f4dd gsdx-ogl: extend device to support an offset for normal draw 2015-08-02 21:30:19 +02:00
Gregory Hainaut 59cdf77784 gsdx-ogl: create a new function to set the blending state 2015-08-02 21:30:19 +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 97b38d9e1b gsdx-ogl: directly set impossible mode in the blending table
Avoid to hack it in the creation

Allow in the future to reuse the table directly instead of converting
in a blend object
2015-07-31 09:45:28 +02:00
Gregory Hainaut 8554f32086 gsdx-ogl: clean the blend table
Remove old shader define
Prefix macro with BLEND_
Add some notes to explain the special symbol
2015-07-31 09:45:28 +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 83dfc6b633 gsdx-ogl: clean a bit selector code
Use countof macro (avoid to duplicate the size)
Fix the size of array
Remove useless alpha_stencil case
2015-07-30 18:36:05 +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 7b9fa8fbe5 gsdx-ogl: add an assertion that will save me 2015-07-30 18:22:59 +02:00
Gregory Hainaut ee9edb0b19 gsdx-ogl: create a copy rect with conversion function
Previous CopyRect function does a memcopy without conversion.

This function will allow to use different format for input/output. Just a
possibility for the future
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 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 5f5266ba45 gsdx-ogl-debug: don't optimize alpha channel in dump
Allow to dump AEM part of the shader
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 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 e245b27c97 gsdx-ogl-debug: allow to dump various ps shader
Nvidia allows to get the ASM of the shader of the compiled shader. It is useful
to check the performance.

It also allow me to compile most of shader code path for QA

Dump is enabled in linux replayer + debug_glsl_shader = 2
2015-07-17 21:08:48 +02:00
Gregory Hainaut 2ccf108534 gsdx-ogl: add back a selector for the Geometry Shader 2015-07-11 14:35:34 +02:00
Gregory Hainaut 5888913052 gsdx-debug: don't print any "notify" message
Too verbose
2015-07-10 22:35:26 +02:00
Gregory Hainaut 705c88f193 gsdx-ogl: disable blending when cleaning integer texture
Avoid a warning message on Nvidia
2015-07-03 20:26:56 +02:00
Gregory Hainaut de644c5437 Merge pull request #628 from PCSX2/gsdx-depth-and-16-bits-support
Gsdx 1.0
2015-07-01 20:50:09 +02:00
Gregory Hainaut cd8e31d85f gsdx-ogl: always copy date to offset 0,0
Fix snow engine game on driver that don't support yet GL_ARB_copy_image
(Mesa drivers)
2015-07-01 18:27:20 +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 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 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 35081f922a gsdx: GS kinds of support draw without framebuffer
Gow uses 24 bits buffer, so only color is updated but blending is configured as Cd
so it is a NOP

In this case, we don't lookup the target in the texture cache. It reduces the complexity
to handle depth which can be located at same address as RT

Note: please test DX renderer
2015-07-01 09:30:20 +02:00
Gregory Hainaut 5bf5b5bca4 gsdx-ogl: extend StretchRect to write in depth texture
It will allow to convert color texture to depth texture
2015-06-07 12:39:23 +02:00
Gregory Hainaut 2cbde89084 Merge pull request #555 from PCSX2/real-fb-format
GSdx: better framebuffer format
2015-06-01 11:48:07 +02:00
Gregory Hainaut f81cf360bc Merge pull request #545 from PCSX2/gsdx-half-screen-snow-engine
Gsdx half screen (most of) snow engine games
2015-06-01 11:47:40 +02:00
Gregory Hainaut 9fa473a57d gsdx-ogl: glDebugMessageCallback is optional
Not even used in release build
2015-05-31 17:55:34 +02:00
Gregory Hainaut 92d68b70d3 gsdx-ogl: add a performance note for later
The idea will be to replace StretchRect for standard case with a framebuffer
blit. Potentially it toggles less gl state.

Worth a test on Star Ocean 3 that uses a lots this function for stencil emulation
2015-05-30 09:58:46 +02:00
Gregory Hainaut 02274601b3 gsdx-ogl: always copy texture into 0,0 2015-05-29 12:18:54 +02:00
Gregory Hainaut d31bd97d59 gsdx-ogl: add a variable to select FB output
Either 32bits/24bits/16bits
2015-05-26 14:59:07 +02:00
Gregory Hainaut 3be5a6036b gsdx-ogl: remove assertion + debug message
opengl use a different object to compute the vertex count
2015-05-26 11:03:59 +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 7609fdc576 gsdx: rename too much sr to sRect 2015-05-21 09:48:15 +02:00
Gregory Hainaut 2d54d59add gsdx-ogl: update assertion ps sel is 8B now 2015-05-20 08:40:08 +02:00
Gregory Hainaut d3d5a436ea gsdx-ogl: add code to read back depth texture 2015-05-20 08:07:40 +02:00
Gregory Hainaut a4c74ef872 gsdx-ogl: disable GL_DITHER
I really don't know the impact but it is not supported with integer texture.
2015-05-20 08:05:27 +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 1837001e75 gsdx: extend CopyOffscreen with a new shader parameter
Currently we're trying to infer the conversion shader based on the output format

It only works if the input data is RGBA8. It might not be true in the future
2015-05-19 13:14:18 +02:00
Gregory Hainaut 19d9349b0b gsdx-debug: remove old assert 2015-05-18 16:45:38 +02:00
Gregory Hainaut 79a9254894 gsdx-ogl: print some error messages if extenal shader is wrongly configured 2015-05-18 10:56:32 +02:00
Gregory Hainaut 5cfb496700 gsdx-ogl: only open debug file once 2015-05-17 14:43:56 +02:00
Gregory Hainaut b1ea081fc3 gsdx-debug: improve tracing interface
Basically move the format and c_str() in the macro
2015-05-17 13:05:08 +02:00
Gregory Hainaut c567198967 gsdx-ogl: replaced draw_count by s_n
This way error message is aligned with everything else :)

It is not perfect (normally it must be done in start of main draw)
2015-05-16 13:59:13 +02:00
Gregory Hainaut 62e0e6a067 gsdx: remove deprecated code
Core was fixed to call GSFifo in the good thread
2015-05-16 13:52:16 +02:00
Gregory Hainaut 3f278382a1 gsdx-debug: dump all drawing register
Thanks PERL
2015-05-16 11:16:33 +02:00
Gregory Hainaut 28bb64aae8 gsdx: sed/dr/dRect/ 2015-05-15 20:49:32 +02:00
Gregory Hainaut 445c28fe97 gsdx: sed/sr/sRect/ 2015-05-15 20:47:14 +02:00
Gregory Hainaut d566bb2a23 gsdx: sed /st/sTex/ 2015-05-15 20:45:31 +02:00
Gregory Hainaut 6a9e425308 gsdx: sed /dt/dTex/ 2015-05-15 20:44:15 +02:00
Gregory Hainaut a5e424512c gsdx-ogl: really avoid consecutive clean 2015-05-15 16:00:46 +02:00
Gregory Hainaut 84c3592fbe gsdx-debug: more debug message/group 2015-05-15 16:00:45 +02:00
Gregory Hainaut 08291aed0c gsdx-ogl: color state impact the clean command 2015-05-15 15:25:45 +02:00
Gregory Hainaut b7a9465963 gsdx-ogl: update the device to use the new texture flags
Hopefully it will increase a bit the speed
2015-05-12 18:18:20 +02:00
Gregory Hainaut 2e34d48e97 gsdx-ogl: add a virtual GetID method for texture
Much more readable
2015-05-12 17:41:41 +02:00
Gregory Hainaut e0012811ae gsdx-debug: more debug info in gl trace 2015-05-12 12:36:34 +02:00
Gregory Hainaut 4e222f18cd gsdx-ogl: it was a bad idea to use DSA on fb
Actually I'm not sure we can mix both dsa/standard approach
2015-05-11 18:04:16 +02:00
Gregory Hainaut f37f3cb3cf gsdx-ogl: improve texture uploading
Initially we copy pitch by line in the PBO and tell the dma to only
use the first valid byte.

Now, we only copy useful data to the PBO. It reduce the copy and PBO memory requirement.

It seems a bit faster on native resolution
2015-05-11 16:32:13 +02:00
Gregory Hainaut 4e2e9aa56c gsdx-ogl: always read the first attachment of the fbo 2015-05-11 16:28:34 +02:00
Gregory Hainaut 1523b9534f gsdx-debug: compact the code 2015-05-11 11:19:00 +02:00
Gregory Hainaut 625d65d4b4 gsdx-ogl: encode the bogus id as shader parameter 2015-05-09 14:55:44 +02:00
Gregory Hainaut 380e420cdd gsdx-ogl: add a blend parameter to shader 2015-05-08 20:28:50 +02:00
Gregory Hainaut 8e1db43431 gsdx-debug: debug stuff 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 e87d129b09 gsdx-ogl: more verbose debug 2015-05-08 01:01:01 +02:00
Gregory Hainaut d6448183d7 gsdx-ogl-debug: insert error message in GL stream
This way, you can see your message in the GL debugger
2015-05-08 00:16:31 +02:00
Gregory Hainaut 51a67029cf gsdx-ogl: add an option to print gl error messages 2015-05-07 23:54:22 +02:00
Gregory Hainaut 7518b2ef21 gsdx-gui-linux: add debug option in the gui
* Only for debug/dev build
* look awful (expand/fill) but otherwise it is nice for the debug ;)
2015-05-07 23:54:22 +02:00
Gregory Hainaut ba21879059 gsdx-ogl: 1x aniso <=> off 2015-05-07 22:13:49 +02:00
Gregory Hainaut 6095f40baf gsdx-ogl: add the number of free bit in selector structs 2015-05-07 18:41:10 +02:00
Gregory Hainaut cc4713d379 gsdx-debug: extend ogl debug capabilities
Group opengl calls into a nice name.

Apitrace shows them in a tree format that support folding. Previously it
was a long flat list (10K-40K of lines by frame)

I align the call number with the internal s_n variable. This way it is
easy to map GSdx dump output with the GL debugger :)
2015-05-06 19:09:13 +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 6d65867b26 gsdx-ogl: comment point_sampler
It is not enabled on the shader so I will reuse the bit
2015-05-06 19:09:12 +02:00
Gregory Hainaut 5f5b901bca gsdx-ogl: alpha bending equation/function are constant
Drop useless variables/state checking
2015-05-05 11:20:25 +02:00
Gregory Hainaut 8032e2c369 gsdx-ogl: separate color mask state from the blending state
Unlike DX they're uncorrelated.
2015-05-05 10:26:01 +02:00
Gregory Hainaut 14a1925de0 gsdx ogl: date texture is signed to use i variant 2015-05-02 16:53:34 +02:00
Gregory Hainaut f37ef105c5 gsdx-ogl: add support for anisotropy
Close feature request #447
2015-05-02 10:54:58 +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 7367b22e03 gsdx-ogl: reduce toggling of scissor state for DATE 2015-05-01 00:59:49 +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 ee19a2789c gsdx: move invalidation from GSDevice to GSTexture
Much cleaner this way
2015-04-30 19:55:57 +02:00
Gregory Hainaut 2bd9043657 gsdx-ogl: improve debug of stencil
Note: ENABLE_OGL_STENCIL_DEBUG could be dropped now that I can read the stencil properly
2015-04-30 19:55:57 +02:00
Gregory Hainaut f0181d98fd gsdx-ogl: save the texture state 2015-04-30 09:57:30 +02:00
Gregory Hainaut 0ab0c6cfba gsdx: verbose debug option
Print opengl error message on stderr

Rename Debug.txt into GSdx_opengl_debug.txt
2015-04-27 19:30:03 +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 ee244071fa gsdx-ogl: use 64 bits counter + fix division factor
I also added a counter of the real size of the texture.

I have a bad overhead for pbo transfer
2015-04-25 14:18:21 +02:00
Gregory Hainaut 47a0026b60 gsdx-ogl: print the bandwidth of uniform 2015-04-25 13:00:03 +02:00
Gregory Hainaut 757726bb91 gsdx-ogl: allow to invalidate the texture
It just a hint to the driver to avoid any useless transfer

I don't expect any change but it is free so why not ;)
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 672e3f9533 gsdx-ogl: use DSA for texture management
Yeah code is much nicer :)
2015-04-24 19:34:17 +02:00
Gregory Hainaut 6e386df535 gsdx-ogl: avoid to clean fully texture in DATE
Is is useless and it has a small impact on performance for big upscale
2015-04-24 18:32:08 +02:00
Gregory Hainaut 03e72781aa gsdx-ogl: drop support of GL_ARB_clear_texture extension
Extension is a bit slower.

We use it to clear the RT but we generally use it right away so
we don't avoid the FB attachment.
2015-04-24 18:15:58 +02:00
Gregory Hainaut 19eb1f00d1 gsdx ogl: flush vbo range instead of barrier
For testing purpose. I don't know which one is better.

It seems flushing have less fps fluctuation than barrier.
2015-04-21 21:44:50 +02:00
Gregory Hainaut ce98276322 gsdx-ogl: improve speed of vertex streaming
Note yet enabled because I'm afraid of data corruption but feel free to test it

The option:
ogl_vertex_storage = 1

Performance note (warm cache+gs replay on colin3)
60 fps -> 76 fps
2015-04-20 09:38:03 +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 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 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 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 ff39dffe23 gsdx-ogl: add a gui option (linux) to select external shader
Note: of course it requires a glsl shader ;)

On windows, you can set the path on the ini file. Here an example with linux path:
shaderfx_conf = /home/gregory/playstation/emulateur/pcsx2_merge/bin/GSdx_FX_Settings.ini
shaderfx_glsl = /home/gregory/playstation/emulateur/pcsx2_merge/bin/shader.fx
2014-11-10 10:38:52 +01:00
Gregory Hainaut 920ac6695f gsdx-ogl: add preliminary support of external shader fx 2014-11-10 10:37:58 +01:00
Gregory Hainaut e62af05496 gsdx-ogl: reduce complexity of clear texture
Null is equivalent to a clear to 0.

Note: Code is not yet used because both stencil and depth are cleared.
Future note: stencil can potentially be replaced by load_store_image
2014-11-08 21:30:14 +01:00
Tom Burnett 1f734a69a0 Small VS2013 fixes 2014-10-12 01:40:40 -07:00
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 10c7be8c50 gsdx-ogl: Use 32B strides for all VBO 2014-10-02 20:44:22 +02:00
Gregory Hainaut 79e8a912cd gsdx-ogl: keep the draw buffer enabled by default
Note: Only DATE requires to disable the draw buffer
2014-09-30 22:18:20 +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 8833afc2fa gsdx-ogl: drop GL_ARB_multi_bind
It will be replaced by DSA so let's reduce the complexity of opengl
2014-09-28 12:23:44 +02:00
Gregory Hainaut 1e86e3cb08 gsdx-ogl: rework callback debug
* use DebugOutputToFile as a callback of gl error. Add a breakpoint to
  find the culprit GL call
* use string instead of char[n]

Note: CheckDebugLog is potentially useless now
2014-09-28 12:00:34 +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 cc24da128c gsdx-ogl: fix for gl_clear_texture
Note: Disabled for depth_stencil texture (I'm not sure we can split the two)
2014-09-28 12:00:34 +02:00
Gregory Hainaut 58a8683d7d gsdx-ogl: disable texture compare mode
It seems to be used for depth texture
2014-09-22 09:27:34 +02:00
Gregory Hainaut d51f008c72 gsdx: openglES fix
* require a 3.1 context
* unattach texture of the fbo when they're not used
(avoid to have a texture and depth_stencil with different size)

Note: except minor shader bug it works on Nvidia 340.23.01
2014-09-22 09:27:31 +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 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 8b78551b92 gsdx-ogl: improve debugging capabilities
allow to print memory transfer usage
Check gl call in dev build
2014-03-25 16:36:29 +01:00
Gregory Hainaut 41091f8ebf gsdx ogl: remove multithread hack
This hack was used because GSReadFifo was called from the EE thread.
Previous commit move the call to the GSThread.

Hopefully avoid flushing the full GPU contex would improve openGL
performance (at least avoid some hiccups ;) )

Note: newer GSdx ogl won't be compatible with older PCSX2
2014-03-25 16:36:29 +01:00
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 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