James Dansereau
50e3426aca
Port-layer only: resolve_msaa_color_buffer clamps msaa_level to the driver's
GL_MAX_SAMPLES (pre-fix: unallocated multisample renderbuffers -> black
screen when MSAA is set beyond driver support); the resolve/copy paths now
bind current_framebuffer ? framebuffers[i].fbo : 0 (the default framebuffer
is GL name 0, not framebuffers[0]). Affects both Windows (opengl32) and
Linux builds. Code file from the PR head (fc092d99); docs in house style,
label rebased D323 -> D405 (collision with our G_TL_LOD finding).
fast3d — software RSP
A C++ interpreter that consumes the Gfx display list the game builds each
frame and emits OpenGL calls, replacing the Nintendo 64's Reality Signal
Processor and Reality Display Processor.
Origin and license
This code is adapted from the Perfect Dark PC
port (port/fast3d/), which in
turn is the Ship of Harkinian /
libultraship fast3d, itself descended from
sm64-port.
LICENSE.txt in this directory (MIT, © 2020 Emill, MaikelChan) covers that
lineage. glad/ is generated by glad
(© David Herberth, MIT). GoldenEye-specific changes in this directory are
under the repository's top-level MIT license.
Files
| File | Role |
|---|---|
gfx_pc.cpp |
the RSP interpreter — matrices, lights, fog, G_TRI1/G_TRI4, vtx |
gfx_opengl.cpp |
OpenGL backend — shaders, textures, z-buffer, framebuffers |
gfx_cc.cpp |
color-combiner equation -> GLSL shader |
gfx_sdl2.cpp |
SDL2 window-manager backend |
gfx_api.h |
public API (gfx_init / gfx_run / gfx_start_frame / ...) |
gbiex.h |
GoldenEye custom GBI command definitions |
glad/ |
OpenGL loader |
GoldenEye-specific work
The PD fast3d already handles G_TRI4 (GoldenEye uses it too). The GE additions
are the custom color-combiner / render modes and the handling of GE's GBI
extension commands. rsp/graphics/gmain.s (GE's real RSP microcode, in the
repo root) is the ground truth for the exact command encodings.