1
Fork 0
mirror of https://github.com/RGBCube/serenity synced 2025-05-19 16:45:08 +00:00
Commit graph

159 commits

Author SHA1 Message Date
cflip
59df2e62ee LibGL: Add simple implementation of buffer objects
For now, buffers are only implemented on the LibGL side, however in the
future buffer objects should be stored in LibGPU.
2022-11-26 09:38:13 +01:00
Jelle Raaijmakers
03258f4c96 LibGL: Add buffer API stubs
No implemented functionality, but this makes it easier to see if
software is using this family of functions.
2022-10-19 22:22:58 +02:00
Jelle Raaijmakers
8e3b7df408 LibGL: Implement GL_SAMPLES, GL_SAMPLE_BUFFERS context parameters
We do not support multisampling right now, so we return constant values
that indicate this.
2022-09-13 20:20:03 +02:00
Jelle Raaijmakers
62846b4691 LibGL: Implement all glMultiTexCoord*f API methods 2022-09-13 20:20:03 +02:00
Jelle Raaijmakers
59fc2a4aad LibGL: Implement all glRasterPos2* API methods 2022-09-13 20:20:03 +02:00
Jelle Raaijmakers
70ea2a2258 LibGL: Implement glNormal3d 2022-09-11 22:45:49 +01:00
Jelle Raaijmakers
af217b0c3a LibGL: Implement GL_(CLIENT_)?ACTIVE_TEXTURE context parameters 2022-09-11 22:37:07 +01:00
Jelle Raaijmakers
1540c56e6c LibGL+LibGPU+LibSoftGPU: Implement GL_GENERATE_MIPMAP
We can now generate texture mipmaps on the fly if the client requests
it. This fixes the missing textures in our PrBoom+ port.
2022-09-11 22:37:07 +01:00
Jelle Raaijmakers
1d36bfdac1 LibGL+LibSoftGPU: Implement fixed pipeline support for GL_COMBINE
`GL_COMBINE` is basically a fixed function calculator to perform simple
arithmetics on configurable fragment sources. This patch implements a
number of texture env parameters with support for the RGBA internal
format.
2022-09-11 22:37:07 +01:00
Jelle Raaijmakers
72b4f95f71 LibGL: Implement glMultiTexCoord2fv(ARB)? APIs 2022-09-11 22:37:07 +01:00
Jelle Raaijmakers
789d871892 LibGL: Define GL_NO_ERROR as 0
This conforms to the Khronos enum value listing and prevents a
redefinition warning when compiling with SDL_opengl.
2022-09-11 22:37:07 +01:00
Jelle Raaijmakers
07e94b3ec1 LibGL: Implement GL_CURRENT_COLOR context parameter 2022-09-11 22:37:07 +01:00
Jelle Raaijmakers
8ab410a536 LibGL: Implement glGetTexImage
The plumbing was already there in LibGPU, so all that was left was to
implement the API :^)
2022-09-03 00:07:24 +02:00
Jelle Raaijmakers
4f69022c32 LibGL: Correct GL_BLEND_*_ALPHA constant values
They were plain wrong; while we're here, also add the `*_EXT` variants.
2022-09-03 00:07:24 +02:00
Jelle Raaijmakers
f08411ba3f LibGL: Improve constants and types compatibility
When compiling with SDL_opengl, all kinds of differences between LibGL
and OpenGL constants and types popped up as redefinition warnings and
errors.

This fixes all LibGL-related warnings when compiling PrBoom+ :^)
2022-09-03 00:07:24 +02:00
Jelle Raaijmakers
eb7c3d16fb LibGL+LibGPU+LibSoftGPU: Implement flexible pixel format conversion
A GPU (driver) is now responsible for reading and writing pixels from
and to user data. The client (LibGL) is responsible for specifying how
the user data must be interpreted or written to.

This allows us to centralize all pixel format conversion in one class,
`LibSoftGPU::PixelConverter`. For both the input and output image, it
takes a specification containing the image dimensions, the pixel type
and the selection (basically a clipping rect), and converts the pixels
from the input image to the output image.

Effectively this means we now support almost all OpenGL 1.5 formats,
and all custom logic has disappeared from:
  - `glDrawPixels`
  - `glReadPixels`
  - `glTexImage2D`
  - `glTexSubImage2D`

The new logic is still unoptimized, but on my machine I experienced no
noticeable slowdown. :^)
2022-08-27 12:28:05 +02:00
Jelle Raaijmakers
d7cfdfe633 LibGL: Implement GL_NORMAL_ARRAY_TYPE context parameter
This is used by the Grim/Monkey4 engine in ScummVM.
2022-08-27 12:28:05 +02:00
RKBethke
0836912a6d LibGL+LibGPU+LibSoftGPU: Implement and expose glClipPlane
This commit implements glClipPlane and its supporting calls, backed
by new support for user-defined clip planes in the software GPU clipper.

This fixes some visual bugs seen in the Quake III port, in which mirrors
would only reflect correctly from close distances.
2022-05-11 23:09:47 +02:00
Jelle Raaijmakers
0abb7df09b LibGL+LibGPU: Implement GL_LINE_SMOOTH context parameter 2022-05-09 21:49:48 +02:00
Jelle Raaijmakers
0dcb23ee96 LibGL+LibGPU: Implement glPointSize 2022-05-09 21:49:48 +02:00
Jesse Buhagiar
c08dfe063a LibGL: Add stub for glCopyTexSubImage2D 2022-04-09 11:40:33 +02:00
Jesse Buhagiar
6e9ea2f21f LibGL: Implement glArrayElement 2022-04-09 11:40:33 +02:00
Jesse Buhagiar
85985e2cf4 LibGL: Implement gl_tex_parameterfv
This is the vectorized version of `gl_tex_parameter`, which sets the
parameters of a texture's sampler. We currently only support one single
pname, `GL_TEXTURE_BORDER_COLOR`, which sets the border color of a texel
for if it is sampled outside of a mip-map's range.
2022-04-09 11:40:33 +02:00
Jesse Buhagiar
b928fdc3ee LibGL: Add stub glClipPlane 2022-04-09 11:40:33 +02:00
Jesse Buhagiar
c9f44c746a LibGL+LibSoftGPU: Add GL_ADD Texture Environment 2022-04-09 11:40:33 +02:00
Idan Horowitz
086969277e Everywhere: Run clang-format 2022-04-01 21:24:45 +01:00
Jelle Raaijmakers
284a629ab4 LibGL+LibSoftGPU: Implement more of GL_LIGHT_MODEL_COLOR_CONTROL
This gets rid of a place where OpenGL was leaking into LibSoftGPU.
2022-03-27 09:19:43 -07:00
Jelle Raaijmakers
c21a3b3029 LibGL: Better handling of texture targets and default textures
We were lacking support for default textures (i.e. calling
`glBindTexture` with a `texture` argument of `0`) which caused our
Quake2 port to render red screens whenever a video was playing. Every
texture unit is now initialized with a default 2D texture.

Additionally, we had this concept of a "currently bound target" on our
texture units which is not how OpenGL wants us to handle targets.
Calling `glBindTexture` should set the texture for the provided target
only, making it sort of an alias for future operations on the same
target.

Finally, `glDeleteTextures` should not remove the bound texture from
the target in the texture unit, but it should reset it to the default
texture.
2022-03-08 15:32:35 +01:00
Jelle Raaijmakers
44a3d5c101 LibGL: Implement glClearDepthf and store as float
Our API still specifies it as a double, but internally we communicate a
float to the rasterizer. Additionally, clamp the value to 0..1 as
described in the spec.
2022-02-22 23:48:59 +00:00
Jesse Buhagiar
371d49c0f6 LibGL: Implement glMateriali{v} 2022-01-26 16:44:11 +01:00
Jesse Buhagiar
170739fe39 LibGL: Implement glLighti{v} 2022-01-26 16:44:11 +01:00
Jesse Buhagiar
909ec41196 LibGL: Implement glLightModeliv 2022-01-26 16:44:11 +01:00
Jesse Buhagiar
68e50759b4 LibGL: Implement glGetMaterial 2022-01-26 16:44:11 +01:00
Jesse Buhagiar
f5cde1b6fb LibGL: Implement glGetLight 2022-01-26 16:44:11 +01:00
Luke Wilde
483ab7fe26 LibGL: Fix incorrect GL_DECAL constant value
The constant value for GL_DECAL is 0x2101 instead of 0x2102.
This was tripping up Half-Life when making the water texture
transparent when under water. The Half-Life port uses its own OpenGL
header, meaning this error wasn't hidden by us.
2022-01-21 15:21:25 +01:00
Jelle Raaijmakers
16255d161e LibGL: Use 4 hex characters for error code constants in gl.h 2022-01-20 10:35:01 +01:00
Jelle Raaijmakers
991cbc56a2 LibGL: Implement glColor4b 2022-01-20 10:35:01 +01:00
Jelle Raaijmakers
29dc17b7b9 LibGL: Correct values for GL_BGR and GL_BGRA 2022-01-20 10:35:01 +01:00
Stephan Unverwerth
044582b0ce LibGL: Add stubs for multitexturing and announce GL_ARB_multitexture
This makes glquake recognize multitexture support and choose the
multitexture rendering path.
2022-01-19 19:57:49 +01:00
Stephan Unverwerth
716b53e90f LibGL: Implement glActiveTextureARB()
This is the equivalent of glActiveTexture() before it got promoted to
the OpenGL core specification. It is needed by glquake to enable the
multitexturing render path.
2022-01-19 19:57:49 +01:00
Jesse Buhagiar
865e7bbe5e LibGL+LibSoftGPU+3DFileViewer: Implement Specular highlighting :^) 2022-01-18 01:48:51 +02:00
Jelle Raaijmakers
11c807ebd1 LibGL+LibSoftGPU: Implement the stencil buffer
This implements an 8-bit front stencil buffer. Stencil operations are
SIMD optimized. LibGL changes include:

* New `glStencilMask` and `glStencilMaskSeparate` functions
* New context parameter `GL_STENCIL_CLEAR_VALUE`
2022-01-17 12:49:00 +01:00
Luke Wilde
c6a0365c58 LibGL+LibSoftGPU: Add support for 8-bit luminance (+ alpha) textures
Used by Half-Life for single colour textures. The alpha variant is
especially used for UI textures.
2022-01-15 12:58:00 +01:00
qeeg
2d9bd24249 LibGL: Add a few defines so that Quake 2's OpenGL renderer compiles 2022-01-14 11:59:31 +01:00
Jelle Raaijmakers
8e935ad3b1 LibGL+LibSoftGPU: Implement glColorMaterial and GL_COLOR_MATERIAL
When `GL_COLOR_MATERIAL` is enabled, specific material parameters can
be overwritten by the current color per-vertex during the lighting
calculations. Which parameter is controlled by `glColorMaterial`.

Also move the lighting calculations _before_ clipping, because the spec
says so. As a result, we interpolate the resulting vertex color instead
of the input color.
2022-01-13 12:13:58 +01:00
Luke Wilde
1fc611877f LibGL: Implement glIsTexture
Required by Xash3D for the r_showtextures command, where it shows every
allocated texture on screen.

Description of glIsTexture from the spec:
"glIsTexture returns GL_TRUE if texture is currently the name of a
texture. If texture is zero, or is a non-zero value that is not
currently the name of a texture, or if an error occurs, glIsTexture
returns GL_FALSE.

A name returned by glGenTextures, but not yet associated with a texture
by calling glBindTexture, is not the name of a texture."

https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glIsTexture.xhtml
2022-01-13 12:13:40 +01:00
Luke Wilde
53d6e1600c LibGL: Stub glStencilMask
Xash3D requires this otherwise it will crash with a jump to nullptr,
but it doesn't use it for anything interesting and just sets a default
value of ~0 during initialization.
2022-01-13 10:07:45 +02:00
Luke Wilde
cba1972deb LibGL: Implement glTexCoord{1,3,4}f(v)
Not necessarily required by Half-Life's use of Xash3D, but it looks
them up anyway and they're easy to implement, so here they are :^).
2022-01-13 10:07:45 +02:00
Jesse Buhagiar
bf294612a7 LibGL: Implement glLightf{v} and fix gl.h prototype
This implements the `glLightf{v}` family of functions used to set
lighting parameters per light in the GL. It also fixes an incorrect
prototype for the user exposed version of `glLightf{v}` in which
`params` was not marked as `const`.
2022-01-12 13:36:56 +01:00
Jelle Raaijmakers
260663567a LibGL: Implement glTexCoord2i 2022-01-11 23:47:42 +01:00