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Remove obsolete GLES3 backend

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Due to the port to Vulkan and complete redesign of the rendering backend,
the `drivers/gles3` code is no longer usable in this state and is not
planned to be ported to the new architecture.

The GLES2 backend is kept (while still disabled and non-working) as it
will eventually be ported to serve as the low-end renderer for Godot 4.0.

Some GLES3 features might be selectively ported to the updated GLES2
backend if there's a need for them, and extensions we can use for that.

So long, OpenGL driver bugs!
This commit is contained in:
Rémi Verschelde 2020-02-13 10:08:52 +01:00
parent d661ca5357
commit 386968ea97
82 changed files with 97 additions and 27728 deletions
Download patch file Download diff file Expand all files Collapse all files

47
platform/javascript/os_javascript.cpp
View file

@ -32,7 +32,6 @@
#include "core/io/file_access_buffered_fa.h"
#include "drivers/gles2/rasterizer_gles2.h"
#include "drivers/gles3/rasterizer_gles3.h"
#include "drivers/unix/dir_access_unix.h"
#include "drivers/unix/file_access_unix.h"
#include "main/main.h"
@ -825,8 +824,6 @@ int OS_JavaScript::get_video_driver_count() const {
const char *OS_JavaScript::get_video_driver_name(int p_driver) const {
switch (p_driver) {
case VIDEO_DRIVER_GLES3:
return "GLES3";
case VIDEO_DRIVER_GLES2:
return "GLES2";
}
@ -908,41 +905,14 @@ Error OS_JavaScript::initialize(const VideoMode &p_desired, int p_video_driver,
set_window_per_pixel_transparency_enabled(true);
}
bool gles3 = true;
if (p_video_driver == VIDEO_DRIVER_GLES2) {
gles3 = false;
}
bool gl_initialization_error = false;
while (true) {
if (gles3) {
if (RasterizerGLES3::is_viable() == OK) {
attributes.majorVersion = 2;
RasterizerGLES3::register_config();
RasterizerGLES3::make_current();
break;
} else {
if (GLOBAL_GET("rendering/quality/driver/fallback_to_gles2")) {
p_video_driver = VIDEO_DRIVER_GLES2;
gles3 = false;
continue;
} else {
gl_initialization_error = true;
break;
}
}
} else {
if (RasterizerGLES2::is_viable() == OK) {
attributes.majorVersion = 1;
RasterizerGLES2::register_config();
RasterizerGLES2::make_current();
break;
} else {
gl_initialization_error = true;
break;
}
}
if (RasterizerGLES2::is_viable() == OK) {
attributes.majorVersion = 1;
RasterizerGLES2::register_config();
RasterizerGLES2::make_current();
} else {
gl_initialization_error = true;
}
EMSCRIPTEN_WEBGL_CONTEXT_HANDLE ctx = emscripten_webgl_create_context(GODOT_CANVAS_SELECTOR, &attributes);
@ -951,9 +921,8 @@ Error OS_JavaScript::initialize(const VideoMode &p_desired, int p_video_driver,
}
if (gl_initialization_error) {
OS::get_singleton()->alert("Your browser does not support any of the supported WebGL versions.\n"
"Please update your browser version.",
"Unable to initialize Video driver");
OS::get_singleton()->alert("Your browser does not seem to support WebGL. Please update your browser version.",
"Unable to initialize video driver");
return ERR_UNAVAILABLE;
}