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Support GLES2 for iOS

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This commit is contained in:
volzhs 2018-12-11 22:49:34 +09:00
parent 244cc11edd
commit 20de0679fc
2 changed files with 57 additions and 9 deletions
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9
platform/iphone/gl_view.mm
View file

@ -47,6 +47,7 @@
@end
*/
bool gles3_available = true;
int gl_view_base_fb;
static String keyboard_text;
static GLView *_instance = NULL;
@ -288,8 +289,12 @@ static void clear_touches() {
context = [[EAGLContext alloc] initWithAPI:kEAGLRenderingAPIOpenGLES3];
if (!context || ![EAGLContext setCurrentContext:context] || ![self createFramebuffer]) {
[self release];
return nil;
context = [[EAGLContext alloc] initWithAPI:kEAGLRenderingAPIOpenGLES2];
gles3_available = false;
if (!context || ![EAGLContext setCurrentContext:context] || ![self createFramebuffer]) {
[self release];
return nil;
}
}
// Default the animation interval to 1/60th of a second.

57
platform/iphone/os_iphone.cpp
View file

@ -32,6 +32,7 @@
#include "os_iphone.h"
#include "drivers/gles2/rasterizer_gles2.h"
#include "drivers/gles3/rasterizer_gles3.h"
#include "servers/visual/visual_server_raster.h"
#include "servers/visual/visual_server_wrap_mt.h"
@ -51,12 +52,19 @@
int OSIPhone::get_video_driver_count() const {
return 1;
return 2;
};
const char *OSIPhone::get_video_driver_name(int p_driver) const {
return "GLES3";
switch (p_driver) {
case VIDEO_DRIVER_GLES3:
return "GLES3";
case VIDEO_DRIVER_GLES2:
return "GLES2";
}
ERR_EXPLAIN("Invalid video driver index " + itos(p_driver));
ERR_FAIL_V(NULL);
};
OSIPhone *OSIPhone::get_singleton() {
@ -97,16 +105,48 @@ int OSIPhone::get_current_video_driver() const {
return video_driver_index;
}
extern bool gles3_available; // from gl_view.mm
Error OSIPhone::initialize(const VideoMode &p_desired, int p_video_driver, int p_audio_driver) {
video_driver_index = VIDEO_DRIVER_GLES3;
bool use_gl3 = GLOBAL_GET("rendering/quality/driver/driver_name") == "GLES3";
bool gl_initialization_error = false;
if (RasterizerGLES3::is_viable() != OK) {
while (true) {
if (use_gl3) {
if (RasterizerGLES3::is_viable() == OK && gles3_available) {
RasterizerGLES3::register_config();
RasterizerGLES3::make_current();
break;
} else {
if (GLOBAL_GET("rendering/quality/driver/driver_fallback") == "Best") {
p_video_driver = VIDEO_DRIVER_GLES2;
use_gl3 = false;
continue;
} else {
gl_initialization_error = true;
break;
}
}
} else {
if (RasterizerGLES2::is_viable() == OK) {
RasterizerGLES2::register_config();
RasterizerGLES2::make_current();
break;
} else {
gl_initialization_error = true;
break;
}
}
}
if (gl_initialization_error) {
OS::get_singleton()->alert("Your device does not support any of the supported OpenGL versions.",
"Unable to initialize Video driver");
return ERR_UNAVAILABLE;
}
RasterizerGLES3::register_config();
RasterizerGLES3::make_current();
video_driver_index = p_video_driver;
visual_server = memnew(VisualServerRaster);
// FIXME: Reimplement threaded rendering
if (get_render_thread_mode() != RENDER_THREAD_UNSAFE) {
@ -117,7 +157,10 @@ Error OSIPhone::initialize(const VideoMode &p_desired, int p_video_driver, int p
//visual_server->cursor_set_visible(false, 0);
// reset this to what it should be, it will have been set to 0 after visual_server->init() is called
RasterizerStorageGLES3::system_fbo = gl_view_base_fb;
if (use_gl3)
RasterizerStorageGLES3::system_fbo = gl_view_base_fb;
else
RasterizerStorageGLES2::system_fbo = gl_view_base_fb;
AudioDriverManager::initialize(p_audio_driver);