mirror of
https://github.com/dingusdev/dingusppc.git
synced 2024-08-30 19:29:39 +00:00
168 lines
5.3 KiB
C++
168 lines
5.3 KiB
C++
/*
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DingusPPC - The Experimental PowerPC Macintosh emulator
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Copyright (C) 2018-23 divingkatae and maximum
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(theweirdo) spatium
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(Contact divingkatae#1017 or powermax#2286 on Discord for more info)
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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#include <devices/video/display.h>
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#include <SDL.h>
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#include <loguru.hpp>
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class Display::Impl {
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public:
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bool resizing = false;
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uint32_t disp_wnd_id = 0;
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SDL_Window* display_wnd = 0;
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SDL_Renderer* renderer = 0;
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SDL_Texture* disp_texture = 0;
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SDL_Texture* cursor_texture = 0;
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SDL_Rect cursor_rect; // destination rectangle for cursor drawing
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};
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Display::Display(): impl(std::make_unique<Impl>()) {
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}
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Display::~Display() {
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if (impl->cursor_texture)
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SDL_DestroyTexture(impl->cursor_texture);
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if (impl->disp_texture)
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SDL_DestroyTexture(impl->disp_texture);
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if (impl->renderer)
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SDL_DestroyRenderer(impl->renderer);
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if (impl->display_wnd)
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SDL_DestroyWindow(impl->display_wnd);
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}
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bool Display::configure(int width, int height) {
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bool is_initialization = false;
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if (!impl->display_wnd) { // create display window
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impl->display_wnd = SDL_CreateWindow(
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SDL_GetRelativeMouseMode() ?
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"DingusPPC Display (Mouse Grabbed)" : "DingusPPC Display",
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SDL_WINDOWPOS_UNDEFINED,
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SDL_WINDOWPOS_UNDEFINED,
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width, height,
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SDL_WINDOW_OPENGL
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);
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impl->disp_wnd_id = SDL_GetWindowID(impl->display_wnd);
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if (impl->display_wnd == NULL)
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ABORT_F("Display: SDL_CreateWindow failed with %s", SDL_GetError());
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impl->renderer = SDL_CreateRenderer(impl->display_wnd, -1, SDL_RENDERER_ACCELERATED);
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if (impl->renderer == NULL)
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ABORT_F("Display: SDL_CreateRenderer failed with %s", SDL_GetError());
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is_initialization = true;
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} else { // resize display window
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SDL_SetWindowSize(impl->display_wnd, width, height);
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}
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if (impl->disp_texture)
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SDL_DestroyTexture(impl->disp_texture);
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impl->disp_texture = SDL_CreateTexture(
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impl->renderer,
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SDL_PIXELFORMAT_ARGB8888,
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SDL_TEXTUREACCESS_STREAMING,
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width, height
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);
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if (impl->disp_texture == NULL)
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ABORT_F("Display: SDL_CreateTexture failed with %s", SDL_GetError());
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return is_initialization;
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}
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void Display::handle_events(const WindowEvent& wnd_event) {
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if (wnd_event.sub_type == SDL_WINDOWEVENT_SIZE_CHANGED &&
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wnd_event.window_id == impl->disp_wnd_id)
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impl->resizing = false;
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}
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void Display::blank() {
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SDL_SetRenderDrawColor(impl->renderer, 0, 0, 0, 255);
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SDL_RenderClear(impl->renderer);
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SDL_RenderPresent(impl->renderer);
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}
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void Display::update(std::function<void(uint8_t *dst_buf, int dst_pitch)> convert_fb_cb,
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std::function<void(uint8_t *dst_buf, int dst_pitch)> cursor_ovl_cb,
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bool draw_hw_cursor, int cursor_x, int cursor_y) {
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if (impl->resizing)
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return;
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uint8_t* dst_buf;
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int dst_pitch;
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SDL_LockTexture(impl->disp_texture, NULL, (void **)&dst_buf, &dst_pitch);
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// texture update callback to get ARGB data from guest framebuffer
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convert_fb_cb(dst_buf, dst_pitch);
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// overlay cursor data if requested
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if (cursor_ovl_cb != nullptr)
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cursor_ovl_cb(dst_buf, dst_pitch);
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SDL_UnlockTexture(impl->disp_texture);
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SDL_RenderClear(impl->renderer);
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SDL_RenderCopy(impl->renderer, impl->disp_texture, NULL, NULL);
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// draw HW cursor if enabled
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if (draw_hw_cursor) {
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impl->cursor_rect.x = cursor_x;
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impl->cursor_rect.y = cursor_y;
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SDL_RenderCopy(impl->renderer, impl->cursor_texture, NULL, &impl->cursor_rect);
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}
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SDL_RenderPresent(impl->renderer);
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}
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void Display::setup_hw_cursor(std::function<void(uint8_t *dst_buf, int dst_pitch)> draw_hw_cursor,
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int cursor_width, int cursor_height) {
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uint8_t* dst_buf;
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int dst_pitch;
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if (impl->cursor_texture)
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SDL_DestroyTexture(impl->cursor_texture);
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impl->cursor_texture = SDL_CreateTexture(
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impl->renderer,
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SDL_PIXELFORMAT_ARGB8888,
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SDL_TEXTUREACCESS_STREAMING,
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cursor_width, cursor_height
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);
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if (impl->cursor_texture == NULL)
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ABORT_F("SDL_CreateTexture for HW cursor failed with %s", SDL_GetError());
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SDL_LockTexture(impl->cursor_texture, NULL, (void **)&dst_buf, &dst_pitch);
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SDL_SetTextureBlendMode(impl->cursor_texture, SDL_BLENDMODE_BLEND);
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draw_hw_cursor(dst_buf, dst_pitch);
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SDL_UnlockTexture(impl->cursor_texture);
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impl->cursor_rect.x = 0;
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impl->cursor_rect.y = 0;
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impl->cursor_rect.w = cursor_width;
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impl->cursor_rect.h = cursor_height;
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}
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