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221 Commits

Author SHA1 Message Date
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