Rachael Alexanderson
a78b713f4b
Merge https://github.com/coelckers/gzdoom
...
# Conflicts:
# src/v_video.cpp
2016-12-06 18:19:08 -05:00
Magnus Norddahl
2f3a6da295
Fix buffer overrun
2016-12-05 04:05:55 +01:00
Christoph Oelckers
daf1a40521
- allow swapping the order of gl_finish and SwapBuffers calls, because some cards do not seem to like the correct order.
2016-12-03 20:09:25 +01:00
Christoph Oelckers
34970c9b9c
- removed hexenglobal include from GL files.
2016-12-03 18:49:52 +01:00
Magnus Norddahl
9416d436fe
Move software renderer into its own namespace to isolate its globals and make
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any access explicit. This reveals the places in the code where they are being
accessed where they shouldn't and prevents accidental usage.
2016-12-01 02:38:32 +01:00
Magnus Norddahl
284a99f204
Merge branch 'gl_swframebuffer' into qzdoom
2016-11-29 22:16:58 +01:00
Magnus Norddahl
00387a7211
Add bounds check to palette upload buffer size
2016-11-29 22:16:40 +01:00
Magnus Norddahl
057060022a
Merge remote-tracking branch 'gzdoom/master' into ssao
2016-11-27 09:59:57 +01:00
Magnus Norddahl
17ed585c1f
Fix vsync not working
2016-11-19 12:30:58 +01:00
Christoph Oelckers
3a2d0e3486
- copied all necessary adjustments from the test branch in the QZDoom repo.
2016-11-15 11:49:27 +01:00
Rachael Alexanderson
9413ea6edf
- Textured automap would crash due to an additional parameter in the software renderer to the FillSimplePoly function call, causing stack issues.
2016-11-08 15:35:51 -05:00
Rachael Alexanderson
d36993a03b
- Textured automap would crash due to an additional parameter in the software renderer to the FillSimplePoly function call, causing stack issues.
2016-11-08 15:05:23 -05:00
Rachael Alexanderson
9f9e4ea19d
- Added randi's "bottomclip" parameter to dpJudas's OpenGLSWFrameBuffer::FillSimplePoly implementation. The code refused to compile because of the new changes. Note that this is not tested on Linux or Mac, and will likely need changes there as well.
2016-11-06 08:58:06 -05:00
Magnus Norddahl
df3f5ae882
Use OpenGL to allocate the canvas buffer to avoid a costly memcpy
2016-10-18 01:16:36 +02:00
Magnus Norddahl
8b297221fe
Merge branch 'gl_swframebuffer' into qzdoom
2016-10-16 23:18:16 +02:00
Magnus Norddahl
f81d0d3964
macOS support and Intel driver bug fixes
2016-10-16 22:40:08 +02:00
Magnus Norddahl
3146f75ae0
Merge remote-tracking branch 'origin/gl_swframebuffer' into qzdoom
2016-10-12 08:05:39 +02:00
Magnus Norddahl
c5ebfd9e65
Add vid_max_width and vid_max_height
2016-10-12 08:05:31 +02:00
Magnus Norddahl
052f7900c2
Fix swapped x and y in DrawLetterbox
2016-10-12 08:04:42 +02:00
Magnus Norddahl
77a566a57e
Merge remote-tracking branch 'origin/gl_swframebuffer' into qzdoom
2016-10-12 07:38:56 +02:00
Magnus Norddahl
698b05ee69
Fix pixel center and letter box issues
2016-10-12 07:34:07 +02:00
Magnus Norddahl
f37ee3a024
Add bgra support to OpenGLSWFrameBuffer
2016-10-11 15:43:12 +02:00
Magnus Norddahl
f5c069c759
Merge remote-tracking branch 'origin/gl_swframebuffer' into qzdoom
2016-10-11 14:54:18 +02:00
Magnus Norddahl
3c7d6234cb
Add wipes
2016-10-11 14:37:57 +02:00
Magnus Norddahl
7911302ad8
Hook in gamma shader
2016-10-11 13:09:32 +02:00
Magnus Norddahl
01dc9de8d1
Misc bug fixes and performance improvements
2016-10-11 10:27:18 +02:00
Magnus Norddahl
682b040b97
OpenGL based software renderer hardware accel now works for most things
2016-10-11 00:03:46 +02:00
Magnus Norddahl
f4308b3184
Add glsl shader version of the d3d9 shaders and get enough of it working for it to boot without errors
2016-10-10 21:03:55 +02:00
Magnus Norddahl
40df46f94e
Implement OpenGL versions of GPU objects
2016-10-10 07:39:02 +02:00
Magnus Norddahl
5f0088ab8b
Created new OpenGL framebuffer using the software renderer's hardware acceleration
2016-10-09 12:50:57 +02:00
Magnus Norddahl
00e72028ef
Add another gbuffer with normal data and make ssao pass use it
2016-10-05 07:57:27 +02:00
Magnus Norddahl
ecb57d6cd9
Merge remote-tracking branch 'gzdoom/master' into ssao
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# Conflicts:
# src/gl/renderer/gl_renderer.cpp
# src/gl/scene/gl_scene.cpp
# src/gl/shaders/gl_shader.cpp
# wadsrc/static/language.enu
# wadsrc/static/menudef.zz
2016-10-04 00:01:03 +02:00
Christoph Oelckers
b75395aa74
- fixed: Screen size update coordinates were copied into the wrong buffer location.
2016-09-28 09:25:48 +02:00
Christoph Oelckers
750c194959
- changed order of SwapBuffers and glFinish call. The new order with glFinish coming last is recommended by OpenGL and it fixes a stalling problem with portals and camera textures visible at the same time.
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- check and use WGL_EXT_swap_control_tear extension. The above change makes the system always wait for a full vsync with a wglSwapInterval of 1, so it now uses the official extension that enables adaptive vsync. Hopefully this also works on the cards where the old setup did not.
2016-09-26 01:38:25 +02:00
Magnus Norddahl
979e70ca8f
Add gl_ssao_portals for controlling how many portals gets SSAO
2016-09-25 00:22:38 +02:00
Magnus Norddahl
3f11c0562c
Add ssao quality setting
2016-09-25 00:22:38 +02:00
Magnus Norddahl
d774136282
Added SceneData texture as the second colorbuffer when rendering a scene and placed fog data into it
2016-09-25 00:22:32 +02:00
Christoph Oelckers
ee2766d00b
- made adjustments for new savegame code.
2016-09-24 01:47:44 +02:00
raa-eruanna
72491049e0
Changes to the contrast/brightness/gamma formula for both hardware and shader gamma correction. Mainly makes a correction with the shader version where contrast/brightness being negative values would clip them inappropriately.
2016-09-22 09:23:25 +02:00
Magnus Norddahl
3c1868f7e6
Fix wrong flash rectangle size after window resize
2016-09-16 02:53:19 +02:00
Christoph Oelckers
8b6e09ca09
- changed the license of the OpenGL renderer to LGPL v3.
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This was done to clean up the license and to ensure that any commercial fork of the engine has to obey the far stricter requirements concerning source distribution. The old license was compatible with GPLv2 whereas combining GPLv2 and LGPLv3 force a license upgrade to GPLv3. The license of code that originates from ZDoomGL has not been changed.
2016-09-14 20:01:13 +02:00
alexey.lysiuk
dcabcaa5b6
Fixed compilation on non-Windows platforms
2016-09-13 22:10:07 +03:00
Magnus Norddahl
b378b3d05a
Remove black bars from windowed mode
2016-09-12 20:43:45 +02:00
Magnus Norddahl
ccbe5160b0
Split F2DDrawer::Flush into Draw and Clear
2016-09-09 00:36:10 +02:00
Christoph Oelckers
8b01a88b76
- removed gl_lights_size and gl_lights_intensity.
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Both of these were inherited from ZDoomGL and in terms of light design in maps it makes absolutely no sense to have them user configurable. They should have been removed 11 years ago.
2016-09-04 12:45:09 +02:00
Christoph Oelckers
e7856ce1e3
- removed unused forceadditive parameter from gl_GetLight.
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- restricted gl_lights_additive to legacy code and removed menu entry for this.
For modern hardware this setting is completely pointless, it offers no advantage and degrades visual quality. Its only reason for existence was that drawing additive lights with textures is a lot faster, and that's all it's being used for now.
2016-09-04 12:35:26 +02:00
Christoph Oelckers
3389a5a74e
- removed most of the specific options for legacy hardware and consolidated them in one variable (does not work yet.)
2016-09-01 11:52:52 +02:00
Christoph Oelckers
45ff15559d
- removed gl_draw_synv because with the postprocessing this is no longer useful.
2016-08-30 00:33:02 +02:00
Christoph Oelckers
8f535997f8
- enable core profile by default on GL 3.x.
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After doing some profiling it was very obvious that this has better performance than client arrays. Persistent buffers are still better, though, especially for handling dynamic lights.
2016-08-29 11:33:20 +02:00
Christoph Oelckers
0f0dc2c852
- implemented buffers for GL 3.x. These only get mapped during the data collection pass so the order of some things is different here.
2016-08-29 10:43:03 +02:00
alexey.lysiuk
9b91a13487
Restored legacy way to collect OpenGL extensions
2016-08-28 10:21:20 +03:00
Magnus Norddahl
b1a0108a96
Fix tonemap palette not being rebuilt on palette change
2016-08-26 19:52:15 +02:00
Christoph Oelckers
597e10116f
- added missing framebuffer function to fudging block.
2016-08-26 08:30:47 +02:00
Magnus Norddahl
960038bb81
Clear global state tracking variables when the OpenGL context is (re)created
2016-08-26 01:36:21 +02:00
Magnus Norddahl
1594cc9570
Only use KHR_debug if available
2016-08-22 19:25:13 +02:00
Christoph Oelckers
250be72939
- added handling for drawing with uniform vertices. It draws something but in the wrong place. Right now I have no idea what's happening...
2016-08-22 15:31:23 +02:00
Christoph Oelckers
7ba5acfb35
- added quad drawer interface so that this part can be done without altering a vertex buffer.
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So far it's only the framework, the new code is not active yet.
2016-08-22 14:00:25 +02:00
alexey.lysiuk
3e01039bbb
Fixed missing #include for GCC/Clang
2016-08-21 15:47:56 +03:00
Christoph Oelckers
dde81b33ea
- glEnable(GL_TEXTURE_2D) only makes sense if no shaders are being used.
2016-08-21 08:45:21 +02:00
Christoph Oelckers
97ff4cc025
Merge branch 'debug' of https://github.com/dpjudas/zdoom
2016-08-20 12:34:56 +02:00
Christoph Oelckers
eadc2f35dd
- fixed: The crossfade wipe must use its own alpha for the second layer, not the one from the vertex buffer.
2016-08-19 00:21:17 +02:00
Magnus Norddahl
e8fc935f04
Another IsFilteredByDebugLevel typo..
2016-08-18 02:24:57 +02:00
Magnus Norddahl
4241026f1c
Swapped order in IsFilteredByDebugLevel
2016-08-18 02:21:53 +02:00
Magnus Norddahl
f75b6d8c5d
Improve debug level filtering
2016-08-18 02:10:54 +02:00
Magnus Norddahl
18ff65fb0e
Filter logging to only display each message once
2016-08-17 23:52:20 +02:00
Magnus Norddahl
d380d765c9
OpenGL object labels and debug groups
2016-08-17 23:18:47 +02:00
Magnus Norddahl
a37225b81e
Don't debug break on notifications
2016-08-17 21:25:03 +02:00
Magnus Norddahl
2cb5f1740e
Add OpenGL debug messages to the console
2016-08-17 20:33:10 +02:00
Magnus Norddahl
5eeac830eb
Clear and InvalidateFramebuffer optimization
2016-08-17 17:37:13 +02:00
Magnus Norddahl
fa2bcebd51
Add KHR_debug and ARB_invalidate_subdata
2016-08-17 16:48:11 +02:00
Magnus Norddahl
f8cc56ea3a
Move SetOutputViewport to OpenGLFrameBuffer::Update as it cannot be safely called from Begin2D
2016-08-14 09:05:54 +02:00
Magnus Norddahl
4ecb77385d
GetScreenshotBuffer bug fix
2016-08-14 09:05:49 +02:00
Magnus Norddahl
d5b122b092
Fix GetScreenshotBuffer grabbing from wrong location
2016-08-14 09:05:48 +02:00
Magnus Norddahl
c817979eae
Remove GetTrueHeight from GL renderer and concentrate all viewport calculations in SetOutputViewport
2016-08-14 09:05:48 +02:00
Christoph Oelckers
0fdd80eae7
- removed debug Printf.
2016-08-10 16:32:31 +02:00
Christoph Oelckers
8daaf61160
- predefine the vertex data for the blend overlay which will never change throughout the lifetime of the GLRenderer object.
2016-08-08 14:24:48 +02:00
Christoph Oelckers
9c9edbffdb
- on older ATI drivers where the clip planes are broken, only disable the clip planes themselves, but not OpenGL 3.x so that dynamic lights still work as intended.
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- only disable clip planes on Windows, but not on Linux or macOS.
- If a driver reports full OpenGL 4.5 support, assume that all features are working properly.
2016-08-08 12:55:09 +02:00
Magnus Norddahl
2ac91f0c5a
Fix Nvidia driver ignoring wglSwapIntervalEXT
2016-08-08 12:22:40 +02:00
Christoph Oelckers
def3ad7533
- refactored all 2D drawing to use its own vertex buffer which does not need to be mapped permanently.
2016-08-08 12:13:09 +02:00
Christoph Oelckers
04c59b434b
- renamed WipeVertexBuffer to FSimpleVertexBuffer because this will be useful elsewhere, too.
2016-08-07 00:40:31 +02:00
Christoph Oelckers
6a66d0255d
- use a dedicated vertex buffer for rendering the wipes.
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- fixed: The postprocessing shaders clobbered the render state's vertex buffer info by bypassing and not notifying it of the change.
2016-08-06 14:12:40 +02:00
Christoph Oelckers
7576e85cef
- force use of shaders on all hardware, unless -noshader is specified.
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Right it's only for easy testing, so only the code that does the feature checking has been disabled.
2016-08-06 13:06:55 +02:00
Christoph Oelckers
2e555e6dab
- use client arrays on compatibility profiles instead of calling glBegin/glEnd.
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This eliminates most behavioral differences for FFlatVertexBuffer between both operating modes, now the only difference is where the buffer is located.
2016-08-06 12:03:16 +02:00
Magnus Norddahl
976a78429e
Simplify post process buffer handling
2016-08-04 17:16:49 +02:00
Magnus Norddahl
6b9529d70f
Added lens distortion shader
2016-08-02 17:32:21 +02:00
Magnus Norddahl
a6354c74cf
Fix incorrect viewport location when not using fullscreen HUD
2016-07-31 13:23:49 +02:00
Magnus Norddahl
cfc20d1198
Added multisample support to FGLRenderBuffers and added gl_multisample to the menus
2016-07-30 15:33:30 +02:00
Magnus Norddahl
5849c83028
Added bloom and tonemap to menus
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Added gl_renderbuffers CVAR that disables render buffers
Added patch shader support to FShaderProgram
Added OpenGL 2 fallback support to render buffers
2016-07-29 21:31:20 +02:00
Magnus Norddahl
0efee85bd8
Added tonemapping and sector based exposure control
2016-07-29 00:36:43 +02:00
Magnus Norddahl
aeb7df09de
Added hardware gamma option and improved window handling on Windows
2016-07-27 11:15:19 +02:00
Christoph Oelckers
52e19c59b3
Revert "- let gl_draw_sync default to false."
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This reverts commit 616f84209b
2016-05-13 20:44:04 +02:00
Christoph Oelckers
616f84209b
- let gl_draw_sync default to false.
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No need to waste valuable processing time if we can let the GPU run in parallel with the code that generates the next frame.
2016-05-12 20:23:18 +02:00
Christoph Oelckers
0a94371974
- reinstated old code for rendering fog boundaries and mirrot surfaces without shaders.
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- added code for filling the render list for textured dynamic lights. This is not yet active because no code is present to handle this data.
2016-05-03 23:28:42 +02:00
Christoph Oelckers
0e14f00b51
- fixed caching of texture sampler state for old hardware.
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- fixed handling of CLAMP_XY_NOMIP sampler mode. This cannot be lumped together with CLAMP_XY because it has different mipmap requirements.
2016-05-03 13:39:41 +02:00
Christoph Oelckers
f2f3fa6d09
- parched the texture precaching so that it compiles and works again. The real work will come later.
2016-05-02 00:13:00 +02:00
Christoph Oelckers
50ba1ecde8
- add menu patching for GL 2.x mode.
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- use stdint types in model code, because we have to start somewhere with the transition.
2016-05-01 13:09:13 +02:00
Christoph Oelckers
ca95371a27
- fixed: gl_load.c did not handle the GL 2.x fallback for the lack of glGetStringi correctly, if that function was missing it just crashed.
2016-04-30 17:16:16 +02:00
Christoph Oelckers
8011958ebe
Merge branch 'gz2x' of https://github.com/alexey-lysiuk/gzdoom
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# Conflicts:
# src/gl/system/gl_interface.cpp
2016-04-30 17:09:57 +02:00
Christoph Oelckers
c29e96d369
- print buffer info only if the buffer type is used.
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- removed some GL specs that are not informative in GZDoom's context.
2016-04-30 16:31:09 +02:00
Christoph Oelckers
50ab301bd8
- fixed: If we want to support pre-GL3 hardware, we may not require the presence of glGetStringi.
2016-04-30 16:23:32 +02:00
alexey.lysiuk
32412c7f75
Disabled printing of junk values for unsupported extensions in OpenGL startup log on OS X
2016-04-30 16:28:50 +03:00
alexey.lysiuk
6757447f1b
Enabled printing of OpenGL startup log on all platforms
2016-04-30 16:28:35 +03:00
alexey.lysiuk
893d0c8915
Added old method to collect extensions
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This required manual changes in generated file gl_load.c
2016-04-30 13:33:54 +03:00
alexey.lysiuk
3816b46938
Fixed compilation of OS X with native backend
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TODO: check Linux build
2016-04-30 11:53:31 +03:00
alexey.lysiuk
de6f13f0b4
Updated gl_load.* files generated with glLoadGen 2.0.5
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Added OpenGL extensions list file for glLoadGen
Added extensions for OS X version
2016-04-30 11:43:08 +03:00
Christoph Oelckers
913e3df7e3
- fixed display of alpha textures without shaders.
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As it turned out, the translation's alpha channel was clobbered by the whole setup.
2016-04-26 19:11:32 +02:00
Christoph Oelckers
7e6e2bc0a8
- stated adding GL 2.0 compatibility handling
2016-04-26 18:24:02 +02:00
Christoph Oelckers
eb27057853
- enable shader-less rendering. Still very incomplete, but at least the basics are working.
2016-04-26 16:44:03 +02:00
Christoph Oelckers
3b1500438d
- got rid of VAO's. they have no impact on performance and are a general nuisance if some render paths cannot use them.
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- cleaned up gl_interface and removed gl.compatibility.
2016-04-26 16:26:34 +02:00
Christoph Oelckers
f066457a48
- add shader patching to allow running the engine with GLSL 1.2.
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- made some initial preparations for the shader-less fallback path.
2016-04-26 15:26:52 +02:00
Christoph Oelckers
090d13b915
- updated gl_interface to deal with older GL versions.
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- added the framework for allowing multipass textured dynamic lights again.
2016-04-26 15:20:26 +02:00
Christoph Oelckers
97bed58d7d
- use a compatibility mode version of gl_load, so that the fallback GL 2 code can get its definitions.
2016-04-26 11:32:40 +02:00
Christoph Oelckers
0d17459c36
- do not disable sampler objects with -gl3.
2016-04-23 15:47:51 +02:00
Christoph Oelckers
c786b65727
- allow the engine to run without sampler objects. This will create some overhead in the texture code, but that's still better than having to error out on those few systems where it may be an issue.
2016-04-22 19:54:51 +02:00
Christoph Oelckers
273c1ea510
- fixed PointOnSide caclulation for dynamic lights.
2016-04-11 19:59:39 +02:00
alexey.lysiuk
bd8b8911d5
- fixed Windows 32-bit build
2016-04-11 10:08:18 +03:00
Christoph Oelckers
1f0fd85d0e
- adjustments for the DrawTexture interface changes.
2016-04-09 13:05:43 +02:00
Christoph Oelckers
b958a5d748
- adjustments in GL code.
2016-03-25 15:14:09 +01:00
alexey.lysiuk
1f64d7ee22
Fixed wrong starting frame for wipe animation
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Menu graphics appeared in starting frame with hardware renderer only
Software renderer was not affected as it reads pixels from front buffer instead of back buffer like OpenGL counterpart did
See http://forum.drdteam.org/viewtopic.php?t=6857
2016-03-15 11:49:56 +01:00
Christoph Oelckers
fc57180d7e
- added necessary state to implement 3D light splitting using hardware clipping planes.
2016-01-30 23:01:11 +01:00
alexey.lysiuk
1c5d0ccd65
- enabled hqNx MMX on all platforms with Intel intrinsics support
2015-12-25 15:41:06 +02:00
alexey.lysiuk
69813993b0
- added missing hqNx modes to options menu
2015-12-25 10:00:31 +02:00
Kyle Evans
841ddb0d63
<stdlib.h> has replaced <malloc.h> on FreeBSD as well
2015-12-10 23:01:59 -06:00
Christoph Oelckers
abf11f1a12
- print an error message if GL_ARB_sampler_objects cannot be found.
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GZDoom requires this extension and all supported hardware has drivers implementing it but there still seem to be people out there who stuck to some older, obsolete drivers that don't.
2015-07-13 09:49:02 +02:00
Christoph Oelckers
f273b6c46d
- fix uninitialized variable.
2015-04-27 21:25:16 +02:00
Christoph Oelckers
48e21f6759
- consider MBF sky transfers when checking for skybox precaching.
2015-04-01 12:08:42 +02:00
Christoph Oelckers
1e9a6e667e
- GL code adjustments for reworked precaching.
2015-04-01 11:59:41 +02:00
Christoph Oelckers
717c82ee4a
- On Intel, we have to disable shader storage buffers because their complier contains a bug disallowing unsized arrays.
2014-12-01 09:58:23 +01:00
Christoph Oelckers
4682736585
- fixed: non-tiled mid textures on a fog boundary require some special clamping to be performed in the shader.
2014-09-21 11:08:17 +02:00
Christoph Oelckers
c773a500f2
- only activate shader storage buffers on modern drivers also supporting GL_ARB_buffer storage. Early adopters of this extension (i.e. older AMD drivers mainly) tend to implement this badly.
2014-09-17 09:01:16 +02:00
Christoph Oelckers
32f08adaf3
- moved some code to better places.
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- allow GL version 3.0 in Windows, too.
2014-09-14 23:01:57 +02:00
Ralgor
5cc43137a1
Only require OpenGL 3.0 compatibility profile.
2014-09-14 14:43:42 -05:00
Ralgor
cfc8f3dbbf
Global GL render context shouldn't be initialized inside of gl_PrintStartupLog, since it's not compiled in non MSC builds.
2014-09-14 14:42:14 -05:00
Christoph Oelckers
acf6c259d8
- changed the handling of alpha textures. The only special case they need is with palette-less textures and this can be handled far more easily and robustly with a predefined translation instead of passing another parameter through all the layers of the texture management code. This also fixes problems with paletted PNGs that get used as an alpha texture because the old method clobbered the image's palette.
2014-09-09 13:21:36 +02:00
Christoph Oelckers
d5633701b4
- swapped order of textures in burn shader to avoid some problems with the texture samplers.
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- fixed: texture sampler state for the burn texture was never set.
2014-09-09 10:17:44 +02:00
Christoph Oelckers
a280c20b4e
- fixed: If we want to cache texture binding state we have to reset it in all places where a texture becomes unbound.
2014-08-31 19:00:17 +02:00
Christoph Oelckers
bf03d02228
- print OpenGL profile type in startup log.
2014-08-24 01:09:44 +02:00
Christoph Oelckers
904cc2e158
- some code cleanup.
2014-08-23 18:54:24 +02:00
Christoph Oelckers
1050013017
major cleanup of the texture manager:
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- use sampler objects to avoid creating up to 4 different system textures for one game texture just because of different clamping settings.
- avoids flushing all textures for change of texture filter mode.
- separate sprite and regular dimensions on the material level to have better control over which one gets used. It's now an explicit parameter of ValidateTexture. The main reason for this change is better handling of wall sprites which may not be subjected to such handling.
- create mipmaps based on use case, not texture type.
- allows removal of FCloneTexture hack for proper sharing of the same sprite for decals and other purposes.
- better precaching of skyboxes.
2014-08-22 23:50:38 +02:00
Christoph Oelckers
274a4216ea
- disabling inlining in the GL loader produces an executable that's 8kb smaller.
2014-08-21 11:47:53 +02:00
Christoph Oelckers
e132fc5eed
- replaced GLEW with GLLoadGen for GL access. This allows to have a header that only contains what's actually required, namely OpenGL 3.3 plus glBegin and glEnd which are the only compatibility functions needed for the fallback render path.
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GLEW has two major problems:
- it always includes everything, there is no way to restrict the header to a specific GL version
- it is mostly broken with a core profile and only works if all sanity checks get switched off.
2014-08-21 11:02:46 +02:00
Christoph Oelckers
86d37e06f9
- lowered requirements of GL 2.x to OpenGL 3.3.
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There was one issue preventing the previous 2.0 betas from running under GL 3.x: The lack of persistently mapped buffers.
For the dynamic light buffer today's changes take care of that problem.
For the vertex buffer there is no good workaround but we can use immediate mode render calls instead which have been reinstated.
To handle the current setup, the engine first tries to get a core profile context and checks for presence of GL 4.4 or the GL_ARB_buffer_storage extension.
If this fails the context is deleted again and a compatibility context retrieved which is then used for 'old style' rendering which does work on older GL versions.
This new version does not support GL 3.2 or lower, meaning that Intel GMA 3000 or lower is not supported. The reason for this is that the engine uses a few GL 3.3 features which are not present in the latest Intel driver.
In general the Intel GMA 3000 is far too weak, though, to run the demanding shader of GZDoom 2.x, so this is no real loss. Performance would be far from satisfying.
A command line option '-gl3' exists to force the fallback render path. On my Geforce 550Ti there's approx. 10% performance loss on this path.
2014-08-19 15:56:33 +02:00
Christoph Oelckers
38796e7714
- removed some obsolete and useless GL calls.
2014-08-17 11:41:03 +02:00
Christoph Oelckers
b2860a1d63
- it looks like glProgramUniform is not working correctly with Intel drivers, so better forget about it for setting the view and projection matrices. Even on NVidia the time difference can only be measured in microseconds per frame so it's not a big loss.
2014-08-02 11:57:42 +02:00
Christoph Oelckers
a8e9c1832f
- decided to restrict the 2.0 beta to OpenGL 4.x with GL_ARB_buffer_storage extension and removed all code for supporting older versions.
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Sadly, anything else makes no sense.
All the recently made changes live or die, depending on this extension's presence.
Without it, there are major performance issues with the buffer uploads. All of the traditional buffer upload methods are without exception horrendously slow, especially in the context of a Doom engine where frequent small updates are required.
It could be solved with a complete restructuring of the engine, of course, but that's hardly worth the effort, considering it's only for legacy hardware whose market share will inevitably shrink considerably over the next years.
And even then, under the best circumstances I'd still get the same performance as the old immediate mode renderer in GZDoom 1.x and still couldn't implement the additions I'd like to make.
So, since I need to keep GZDoom 1.x around anyway for older GL 2.x hardware, it may as well serve for 3.x hardware, too. It's certainly less work than constantly trying to find workarounds for the older hardware's limitations that cost more time than working on future-proofing the engine.
This new, trimmed down 4.x renderer runs on a core profile configuration and uses persistently mapped buffers for nearly everything that is getting transferred to the GPU. (The global uniforms are still being used as such but they'll be phased out after the first beta release.
2014-08-01 22:42:39 +02:00
Christoph Oelckers
7967082e60
- use the light buffer to handle dynamic lighting.
2014-08-01 20:59:39 +02:00
Christoph Oelckers
ef8f66c9a1
- removed the code for hardware alpha testing again because it didn't work anymore with how things are set up now.
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- we need to check all GL versions when trying to get a context because some drivers only give us the version we request, leaving out newer features that are not exposed via extension.
- added some status info about uniform blocks.
2014-07-30 23:13:16 +02:00
Christoph Oelckers
c9c93a58a2
- fixed bad constant and potential use of uninitialized variable.
2014-07-27 21:55:25 +02:00
Christoph Oelckers
3d24f58bf0
- fixed conditions for disabling the flat vertex buffer.
2014-07-27 20:18:32 +02:00
Christoph Oelckers
29a56fe01c
Merge branch 'master' into Glew_Version_For_Real
2014-07-27 17:59:50 +02:00
Christoph Oelckers
925305aa05
- fixed: The code for updating vertex dirty state had been completely missing. I have no idea when it disappeared...
2014-07-27 17:58:51 +02:00
Christoph Oelckers
4904abfc1c
- forgot test stuff.
2014-07-27 13:47:37 +02:00
Christoph Oelckers
97341fcb31
- reenabled the flat vertex buffer for GL 3.x NVidia hardware. On AMD and Intel it'll stay off because past tests have shown that it won't improve performance at all.
2014-07-27 13:46:35 +02:00
Christoph Oelckers
637aa9d77e
- some adjustments to allow testing the different rendering methods.
2014-07-26 18:43:54 +02:00
Christoph Oelckers
eb9d2d9917
- reactivate compatibility profile so that immediate mode drawing can be used on older hardware not supporting persistently mapped buffers.
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- reactivate alpha testing per fixed function pipeline
- use the 'modern' way to define clip planes (GL_CLIP_DISTANCE). This is far more portable than the old glClipPlane method and a lot more robust than checking this in the fragment shader.
2014-07-17 02:37:18 +02:00
Christoph Oelckers
fb6b4238ed
- fixed: glProgramUniform is only present from GL 4.1 or a specific extension so it may not be used on systems not supporting it.
2014-07-15 02:48:59 +02:00
Christoph Oelckers
fc0cf4f998
- GZDoom now runs on an OpenGL core profile. :)
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It's probably still necessary to replace GLEW with another loader library. GLEW is pretty much broken on core OpenGL without some hacky workarounds...
2014-07-15 02:26:23 +02:00
Christoph Oelckers
ed8a21fd86
- replaced deprecated alpha testing with shader code.
2014-07-14 21:14:43 +02:00
Christoph Oelckers
ed5ee4e8d1
- removed some obsolete init stuff and some deprecated constants.
2014-07-14 18:48:46 +02:00
Christoph Oelckers
2214c0ac06
- remove all uses of builtin matrix manipulation. Only glLoadMatrix for view and projection matrix are left.
2014-07-13 22:37:34 +02:00
Christoph Oelckers
9c5cec0056
- draw wipes with buffers
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Only two things left that still use immediate mode directly: MD3 models and voxels.
2014-06-30 10:05:15 +02:00
Christoph Oelckers
ffcb6cb70a
- added second vertex coordinate attribute for model interpolation.
2014-06-29 11:00:21 +02:00
Christoph Oelckers
1f0c69a0e9
- some cleanup after GL 2.x code removal
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- reinstated burn warp with shader based code.
2014-06-21 16:41:45 +02:00
Christoph Oelckers
2925c96b59
removed all GL 2.x code.
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After thinking about it for a day or so I believe it's the best option to remove all compatibility code because it's a major obstacle for a transition to a core profile.
2014-06-21 15:50:32 +02:00
Christoph Oelckers
d5dceb6874
- changed alpha texture handling to avoid using the deprecated GL_ALPHA8 texture format unless we have a compatibility context of an older GL version.
2014-06-21 12:52:19 +02:00
Christoph Oelckers
59522f7065
- simplified MD2 drawing code as preparation for a buffer based implementation.
2014-06-19 13:37:30 +02:00
Christoph Oelckers
e6f14b055a
- use buffer based rendering for dynamic light pass and horizon portals.
2014-06-15 20:28:23 +02:00
Christoph Oelckers
0ce6b40672
- fixed compile error in gl_skydome.cpp
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- disable GL_ARB_buffer_storage when a -glversion parameter less than 4.0 is given. According to the spec this extension requires 4.0 so if emulating something lower it should not be used.
2014-06-14 14:58:17 +02:00
Christoph Oelckers
8d9a90cd22
- rewrote sky dome rendering to use a static vertex buffer if not on OpenGL 2.x.
2014-06-14 01:24:28 +02:00
Christoph Oelckers
b9a6fe80a4
Do not use the shader to handle STYLEF_RedIsAlpha.
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Turns out that the name doesn't accurately describe what it does.
It is correct for images that come with their own palette or are true color.
But for images using the game palette it doesn't use the red channel to determine translucency but the palette index! Ugh...
This means it cannot be done with a simple operation in the shader because it won't get a proper source image. The only solution is to create a separate texture.
2014-05-11 23:56:53 +02:00
Christoph Oelckers
978ace241c
- removed all code that mixes together the different lighting methods. Now everything goes through the 3 different light parameters in the render state.
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- removed cm parameter from many functions.
2014-05-11 21:47:54 +02:00
Christoph Oelckers
887d35d559
- remove colormap from texture generation parameters. The one remaining special case, alpha texture on old hardware is now handled by the currently set texture mode at the time of use.
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- use the cleaned up decal lighting code from the first GLEW branch.
2014-05-11 19:44:19 +02:00
Christoph Oelckers
7793bbbcc9
Further cleanup of lighting code.
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- remove thing color from lighting calculations.
- implement alpha textures and inverse sprites for infrared as texture modes. This still requires some handling for the alpha texture mode for non-shader rendering because there is no way in the fixed pipeline to do it. The inverted texture effect can be done with a texture combiner.
- fixed: ThingColor for sprites was set in the wrong place. It must be in the Process function, not in the lighting calculation.
- added functions for isolated calculation of sprites' dynlight color.
2014-05-11 17:56:38 +02:00
Christoph Oelckers
09f4071436
Ok, it had to be done: Removed shader support for pre GLSL 1.3/GL 3.0 hardware. The compromises needed to accomodate these are just too bad and would block any attempt at streamlining the code.
2014-05-11 13:27:51 +02:00
Christoph Oelckers
92b9814460
Merge branch 'master' into Glew_Version_For_Real
2014-05-11 09:17:46 +02:00
Christoph Oelckers
a42cde0837
- removed #include of glxew.h because it's not used.
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- removed some unused functions from gl_interface.cpp which were causing problems when compiling on Linux.
2014-05-11 09:17:18 +02:00
Christoph Oelckers
7d3beb665b
- rewrote vertex buffer code to require GL_ARB_BUFFER_STORAGE extension.
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This means it won't work anymore on anything that doesn't support OpenGL 4.0, but I don't think this is a problem. On older NVidia cards performance gains could not be seen and on older AMDs using the vertex buffer was even worse as long as it got mixed with immediate mode rendering.
2014-05-10 21:47:07 +02:00
Christoph Oelckers
69af73d9b9
- alternative configuration using GLEW to get extension functions. This requires GL 2.0, though so it won't be promoted to the mainline for the time being.
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- removed all pre GL 2.0 support.
2014-04-06 14:35:44 +02:00
galtgendo
4909aa750f
Use more portable hqx code from googlecode hqx
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Conflicts:
src/CMakeLists.txt
2014-03-28 01:49:53 +01:00
Christoph Oelckers
3b5d379fa4
- Linux compile fix.
2013-12-09 11:34:26 +01:00
alexey.lysiuk
4b24489393
* fix compilation on non-Windows systems
2013-12-07 12:25:38 +02:00
Mike Swanson
d48d337883
convert file from UTF-16LE to UTF-8
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This one file gave issues with parsing in certain programs, including
the GitHub UI. No need for English text to waste so much space.
2013-12-05 04:43:29 -08:00
Christoph Oelckers
e4282d3554
- added error check to GL getProcAddress calls to spot driver errors.
2013-11-30 12:34:55 +01:00
Christoph Oelckers
fef0782a43
- added glext headers to the project because they seem to be broken in newer versions, causing compile errors on Linux.
2013-09-12 10:27:32 +02:00
Christoph Oelckers
2885056f46
- moved GLEXT API out of RenderContext struct.
2013-09-03 18:29:39 +02:00
Christoph Oelckers
26943fe3fd
- removed gl interface function pointers for all OpenGL32.dll entry points.
2013-09-03 14:05:41 +02:00
Christoph Oelckers
4dc06cca70
- changed minimum required GL version to 1.3. The only 1.4 feature that's required is mipmap generation which on many older cards is available as an extension. The worst thing that can happen with relaxing the version requirement is that on a few ancient graphics cards the mipmapped texture filtering modes produce garbage.
2013-09-02 08:43:56 +02:00
Christoph Oelckers
737708b635
- fix c++11's compile problems.
2013-08-28 08:33:11 +02:00
Christoph Oelckers
b61ef3a107
- bumped minimum supported OpenGL version to 1.4. The engine was already using several 1.3 and 1.4 features which would have caused problems on 1.2.
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- removed gl_vid_compatibility. With the bump to 1.4 no hardware requiring this flag is supported anymore.
- disabled 16 bit framebuffers for the same reason. As a conseqence all code for rendering without stencil could also be removed.
2013-08-18 15:41:52 +02:00
Christoph Oelckers
761ab4ab78
- moved all system specific code out of gl_interface.cpp into the respective Video classes (Win32GLVideo andSDLGLVideo.) (SDL side not tested yet!)
2013-08-18 14:16:33 +02:00
alexey.lysiuk
28fd035b22
* fix build on OS X via CMake
2013-06-28 11:02:55 +03:00
Braden Obrzut
57324f6fd8
Merge branch 'maint_1.8'
2013-06-26 19:05:03 -04:00
Braden Obrzut
276ca5b75b
- Fixed compilation on non-Windows systems by removing dependency on src/Linux/platform.h
2013-06-26 19:01:00 -04:00
Christoph Oelckers
46d203a929
- removed unused variable wgl_extensions.
2013-06-24 00:59:57 +02:00
Christoph Oelckers
399d0974ab
- added GL render as of SVN revision 1600.
2013-06-23 09:49:34 +02:00
