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234 lines
8.2 KiB
Plaintext
234 lines
8.2 KiB
Plaintext
/**************************************************************************/
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/* rendering_context_driver_metal.mm */
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/**************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* https://godotengine.org */
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/**************************************************************************/
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/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
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/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/**************************************************************************/
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#import "rendering_context_driver_metal.h"
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#import "rendering_device_driver_metal.h"
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@protocol MTLDeviceEx <MTLDevice>
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#if TARGET_OS_OSX && __MAC_OS_X_VERSION_MAX_ALLOWED < 130300
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- (void)setShouldMaximizeConcurrentCompilation:(BOOL)v;
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#endif
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@end
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RenderingContextDriverMetal::RenderingContextDriverMetal() {
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}
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RenderingContextDriverMetal::~RenderingContextDriverMetal() {
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}
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Error RenderingContextDriverMetal::initialize() {
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metal_device = MTLCreateSystemDefaultDevice();
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#if TARGET_OS_OSX
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if (@available(macOS 13.3, *)) {
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[id<MTLDeviceEx>(metal_device) setShouldMaximizeConcurrentCompilation:YES];
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}
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#endif
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device.type = DEVICE_TYPE_INTEGRATED_GPU;
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device.vendor = VENDOR_APPLE;
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device.workarounds = Workarounds();
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MetalDeviceProperties props(metal_device);
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int version = (int)props.features.highestFamily - (int)MTLGPUFamilyApple1 + 1;
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device.name = vformat("%s (Apple%d)", metal_device.name.UTF8String, version);
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return OK;
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}
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const RenderingContextDriver::Device &RenderingContextDriverMetal::device_get(uint32_t p_device_index) const {
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DEV_ASSERT(p_device_index < 1);
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return device;
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}
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uint32_t RenderingContextDriverMetal::device_get_count() const {
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return 1;
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}
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RenderingDeviceDriver *RenderingContextDriverMetal::driver_create() {
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return memnew(RenderingDeviceDriverMetal(this));
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}
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void RenderingContextDriverMetal::driver_free(RenderingDeviceDriver *p_driver) {
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memdelete(p_driver);
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}
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class API_AVAILABLE(macos(11.0), ios(14.0)) SurfaceLayer : public RenderingContextDriverMetal::Surface {
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CAMetalLayer *__unsafe_unretained layer = nil;
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LocalVector<MDFrameBuffer> frame_buffers;
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LocalVector<id<MTLDrawable>> drawables;
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uint32_t rear = -1;
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uint32_t front = 0;
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uint32_t count = 0;
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public:
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SurfaceLayer(CAMetalLayer *p_layer, id<MTLDevice> p_device) :
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Surface(p_device), layer(p_layer) {
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layer.allowsNextDrawableTimeout = YES;
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layer.framebufferOnly = YES;
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layer.opaque = OS::get_singleton()->is_layered_allowed() ? NO : YES;
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layer.pixelFormat = get_pixel_format();
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layer.device = p_device;
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}
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~SurfaceLayer() override {
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layer = nil;
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}
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Error resize(uint32_t p_desired_framebuffer_count) override final {
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if (width == 0 || height == 0) {
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// Very likely the window is minimized, don't create a swap chain.
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return ERR_SKIP;
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}
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CGSize drawableSize = CGSizeMake(width, height);
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CGSize current = layer.drawableSize;
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if (!CGSizeEqualToSize(current, drawableSize)) {
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layer.drawableSize = drawableSize;
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}
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// Metal supports a maximum of 3 drawables.
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p_desired_framebuffer_count = MIN(3U, p_desired_framebuffer_count);
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layer.maximumDrawableCount = p_desired_framebuffer_count;
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#if TARGET_OS_OSX
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// Display sync is only supported on macOS.
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switch (vsync_mode) {
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case DisplayServer::VSYNC_MAILBOX:
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case DisplayServer::VSYNC_ADAPTIVE:
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case DisplayServer::VSYNC_ENABLED:
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layer.displaySyncEnabled = YES;
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break;
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case DisplayServer::VSYNC_DISABLED:
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layer.displaySyncEnabled = NO;
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break;
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}
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#endif
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drawables.resize(p_desired_framebuffer_count);
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frame_buffers.resize(p_desired_framebuffer_count);
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for (uint32_t i = 0; i < p_desired_framebuffer_count; i++) {
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// Reserve space for the drawable texture.
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frame_buffers[i].set_texture_count(1);
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}
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return OK;
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}
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RDD::FramebufferID acquire_next_frame_buffer() override final {
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if (count == frame_buffers.size()) {
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return RDD::FramebufferID();
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}
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rear = (rear + 1) % frame_buffers.size();
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count++;
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MDFrameBuffer &frame_buffer = frame_buffers[rear];
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frame_buffer.size = Size2i(width, height);
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id<CAMetalDrawable> drawable = layer.nextDrawable;
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ERR_FAIL_NULL_V_MSG(drawable, RDD::FramebufferID(), "no drawable available");
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drawables[rear] = drawable;
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frame_buffer.set_texture(0, drawable.texture);
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return RDD::FramebufferID(&frame_buffer);
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}
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void present(MDCommandBuffer *p_cmd_buffer) override final {
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if (count == 0) {
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return;
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}
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// Release texture and drawable.
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frame_buffers[front].unset_texture(0);
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id<MTLDrawable> drawable = drawables[front];
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drawables[front] = nil;
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count--;
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front = (front + 1) % frame_buffers.size();
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[p_cmd_buffer->get_command_buffer() presentDrawable:drawable afterMinimumDuration:present_minimum_duration];
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}
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};
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RenderingContextDriver::SurfaceID RenderingContextDriverMetal::surface_create(const void *p_platform_data) {
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const WindowPlatformData *wpd = (const WindowPlatformData *)(p_platform_data);
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Surface *surface = memnew(SurfaceLayer(wpd->layer, metal_device));
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return SurfaceID(surface);
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}
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void RenderingContextDriverMetal::surface_set_size(SurfaceID p_surface, uint32_t p_width, uint32_t p_height) {
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Surface *surface = (Surface *)(p_surface);
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if (surface->width == p_width && surface->height == p_height) {
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return;
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}
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surface->width = p_width;
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surface->height = p_height;
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surface->needs_resize = true;
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}
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void RenderingContextDriverMetal::surface_set_vsync_mode(SurfaceID p_surface, DisplayServer::VSyncMode p_vsync_mode) {
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Surface *surface = (Surface *)(p_surface);
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if (surface->vsync_mode == p_vsync_mode) {
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return;
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}
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surface->vsync_mode = p_vsync_mode;
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surface->needs_resize = true;
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}
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DisplayServer::VSyncMode RenderingContextDriverMetal::surface_get_vsync_mode(SurfaceID p_surface) const {
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Surface *surface = (Surface *)(p_surface);
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return surface->vsync_mode;
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}
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uint32_t RenderingContextDriverMetal::surface_get_width(SurfaceID p_surface) const {
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Surface *surface = (Surface *)(p_surface);
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return surface->width;
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}
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uint32_t RenderingContextDriverMetal::surface_get_height(SurfaceID p_surface) const {
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Surface *surface = (Surface *)(p_surface);
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return surface->height;
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}
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void RenderingContextDriverMetal::surface_set_needs_resize(SurfaceID p_surface, bool p_needs_resize) {
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Surface *surface = (Surface *)(p_surface);
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surface->needs_resize = p_needs_resize;
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}
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bool RenderingContextDriverMetal::surface_get_needs_resize(SurfaceID p_surface) const {
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Surface *surface = (Surface *)(p_surface);
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return surface->needs_resize;
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}
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void RenderingContextDriverMetal::surface_destroy(SurfaceID p_surface) {
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Surface *surface = (Surface *)(p_surface);
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memdelete(surface);
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}
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