* add a callback for GLERROR. Allow to breakpoint on GSDeviceOGL::DebugCallback (gdb is completely lost on amd driver, hope it is better on nvidia)
* Add some empty glsl convert to shutup some useless debugging error
* request an advance opengl context without pre 3.0 feature.
git-svn-id: http://pcsx2.googlecode.com/svn/branches/gsdx-ogl@4983 96395faa-99c1-11dd-bbfe-3dabce05a288
* flip y-axis in merge stage
* default to xlib window managment (the dynamic switch between sdl and xlib crashi but SDL will probably dropped later)
* improve management of FBO, draw buffer
* try to fix some issue with glClearBuffer but spec is not clear.
git-svn-id: http://pcsx2.googlecode.com/svn/branches/gsdx-ogl@4982 96395faa-99c1-11dd-bbfe-3dabce05a288
* implement the saving of texture (take bmp SW code)
* fix the missing "enable attribute code" and the typo in glsl. It works now !!!
* rework a little texture to pack texture into a temporay buffer when src pitch != dst pitch
* try to replace sdl with pure xlib (not yet enabled by default but it seems to work)
Note there still a minor issue, coordinate are different between DX and OGL (upper-left vs lower-left) so the image is inversed.
git-svn-id: http://pcsx2.googlecode.com/svn/branches/gsdx-ogl@4981 96395faa-99c1-11dd-bbfe-3dabce05a288
* implement shader code (subset that seem to be used in SW mode)
* some hack to fix some alignment issue with GSVertexPT1 structure
* Lots of various opengl fixes. Remaining unsupported GL feature are inside SDL.
git-svn-id: http://pcsx2.googlecode.com/svn/branches/gsdx-ogl@4974 96395faa-99c1-11dd-bbfe-3dabce05a288
* make a rough implementation of most of the opengl device interface. Only a savestate nothing to expect yet.
* depend of libglew 1.6 (normally 1.7 but I manually defined the only missing function)
git-svn-id: http://pcsx2.googlecode.com/svn/branches/gsdx-ogl@4971 96395faa-99c1-11dd-bbfe-3dabce05a288
Skygunner crashing on boot.
James Bond 007: Everything or Nothing doing a huge Vram usage when opening the weapons screen and making the system crawl at it. Couldn't test much with this one and only added the US version for now.
git-svn-id: http://pcsx2.googlecode.com/svn/trunk@4921 96395faa-99c1-11dd-bbfe-3dabce05a288
32-bit depth buffers for D3D9 users if available. Lots of code shuffling for reasons I don't even remember. Stuff. Pretty much just the 32-bit depth buffers. That's good though, you don't have to envy D3D10 users half as much now.
git-svn-id: http://pcsx2.googlecode.com/svn/trunk@3002 96395faa-99c1-11dd-bbfe-3dabce05a288
GSDx: Removed discards from partial colclamp support as it wasn't doing much good and definitely won't be necessary with the next stage of support. No significant functional change probably.
As before, please do a full rebuild of gsdx. I hate it as much as you but don't know how to make VS smarter about this.
git-svn-id: http://pcsx2.googlecode.com/svn/trunk@2712 96395faa-99c1-11dd-bbfe-3dabce05a288
Fixes shadows in Ico and Shadow of the Colossus and hopefully fixes more effects in other games.
git-svn-id: http://pcsx2.googlecode.com/svn/trunk@2702 96395faa-99c1-11dd-bbfe-3dabce05a288
- Automatic texture filtering should be ok now, occasionally point filtering was used. Tested it on the ps2 and figured with no mip levels LoD and minification settings are just ignored altogether.
- Also run a few tests on the gather instruction with the reference rasterizer and found a fatal flaw with it. It returns the four samples for bilinear sampling (in a funny order, which isn't documented of course, x = bl, y = br, z = tr, w = tl), but there is no way to guess which four were selected exactly. Due to some hidden rounding error it might grab different texels than I would when calculating the position of the upper-left texel, of which the fractional part is be used for the interpolation. When the texel positions do not match it leaves annoying discontinuity errors. Oh well...
git-svn-id: http://pcsx2.googlecode.com/svn/trunk@1571 96395faa-99c1-11dd-bbfe-3dabce05a288
- 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
And there is even an explanation.
The tfx functions calculate At * Af >> 7, which means modulating by 0x80 should return At as the result.
With the evil floating point pixel shader however 0x80 translates to 128/255 (0.502), not exactly 0.5, modulation as At' * Af' * 2 (' means 0 - 1.0 range) is not the same as with integers.
At' = Af' = 0.502
At' * Af' * 2 = 0.504
If the alpha test happens to be "not equal to 0x80", then abs(0.504 - 128/255) < 0.5/255 will just miss.
Solution is to re-scale those values to the integer range, do the calculations, and then back to float again, but in the end it just simplifies down to At' * Af' * 255/128, doh...
At * Af >> 7 => ((At' * 255) * (Af' * 255) / 128) / 255 => At' * Af' * 255/128
At' = Af' = 0.502
0.502 * 0.502 * 255/128 = 0.502 (w00t!)
git-svn-id: http://pcsx2.googlecode.com/svn/trunk@1272 96395faa-99c1-11dd-bbfe-3dabce05a288
gregory.hainaut