all repos — mgba @ af35438aaab9307f0451f358a678644d4d9336ba

mGBA Game Boy Advance Emulator

SDL: Move Raspberry Pi initialisation code to a separate file
Cameron Cawley ccawley2011@gmail.com
Sun, 05 May 2019 13:10:55 +0100
commit

af35438aaab9307f0451f358a678644d4d9336ba

parent

88006148c983235522766ffdba04f23ce639653f

M src/platform/sdl/CMakeLists.txtsrc/platform/sdl/CMakeLists.txt

@@ -60,7 +60,7 @@ set(MAIN_SRC ${CMAKE_SOURCE_DIR}/src/platform/sdl/main.c)

if(BUILD_RASPI) add_definitions(-DBUILD_RASPI) - list(APPEND PLATFORM_SRC ${CMAKE_SOURCE_DIR}/src/platform/opengl/gles2.c ${CMAKE_SOURCE_DIR}/src/platform/sdl/gl-common.c) + list(APPEND PLATFORM_SRC ${CMAKE_SOURCE_DIR}/src/platform/opengl/gles2.c ${CMAKE_SOURCE_DIR}/src/platform/sdl/gl-common.c ${CMAKE_SOURCE_DIR}/src/platform/sdl/rpi-common.c) list(APPEND MAIN_SRC ${CMAKE_SOURCE_DIR}/src/platform/sdl/gles2-sdl.c) set(OPENGLES2_LIBRARY "-lEGL -lGLESv2 -lbcm_host") set(BUILD_GLES2 ON CACHE BOOL "Using OpenGL|ES 2" FORCE)
M src/platform/sdl/gles2-sdl.csrc/platform/sdl/gles2-sdl.c

@@ -6,6 +6,9 @@ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#include "main.h" #include "gl-common.h" +#ifdef BUILD_RASPI +#include "rpi-common.h" +#endif #include <mgba/core/core.h> #include <mgba/core/thread.h>

@@ -26,74 +29,7 @@ }

bool mSDLGLES2Init(struct mSDLRenderer* renderer) { #ifdef BUILD_RASPI - bcm_host_init(); - renderer->display = eglGetDisplay(EGL_DEFAULT_DISPLAY); - int major, minor; - if (EGL_FALSE == eglInitialize(renderer->display, &major, &minor)) { - printf("Failed to initialize EGL"); - return false; - } - - if (EGL_FALSE == eglBindAPI(EGL_OPENGL_ES_API)) { - printf("Failed to get GLES API"); - return false; - } - - const EGLint requestConfig[] = { - EGL_RED_SIZE, 5, - EGL_GREEN_SIZE, 5, - EGL_BLUE_SIZE, 5, - EGL_ALPHA_SIZE, 1, - EGL_SURFACE_TYPE, EGL_WINDOW_BIT, - EGL_NONE - }; - - EGLConfig config; - EGLint numConfigs; - - if (EGL_FALSE == eglChooseConfig(renderer->display, requestConfig, &config, 1, &numConfigs)) { - printf("Failed to choose EGL config\n"); - return false; - } - - const EGLint contextAttributes[] = { - EGL_CONTEXT_CLIENT_VERSION, 2, - EGL_NONE - }; - - int dispWidth = 240, dispHeight = 160, adjWidth; - renderer->context = eglCreateContext(renderer->display, config, EGL_NO_CONTEXT, contextAttributes); - graphics_get_display_size(0, &dispWidth, &dispHeight); - adjWidth = dispHeight / 2 * 3; - - DISPMANX_DISPLAY_HANDLE_T display = vc_dispmanx_display_open(0); - DISPMANX_UPDATE_HANDLE_T update = vc_dispmanx_update_start(0); - - VC_RECT_T destRect = { - .x = (dispWidth - adjWidth) / 2, - .y = 0, - .width = adjWidth, - .height = dispHeight - }; - - VC_RECT_T srcRect = { - .x = 0, - .y = 0, - .width = 240 << 16, - .height = 160 << 16 - }; - - DISPMANX_ELEMENT_HANDLE_T element = vc_dispmanx_element_add(update, display, 0, &destRect, 0, &srcRect, DISPMANX_PROTECTION_NONE, 0, 0, 0); - vc_dispmanx_update_submit_sync(update); - - renderer->window.element = element; - renderer->window.width = dispWidth; - renderer->window.height = dispHeight; - - renderer->surface = eglCreateWindowSurface(renderer->display, config, &renderer->window, 0); - if (EGL_FALSE == eglMakeCurrent(renderer->display, renderer->surface, renderer->surface, renderer->context)) { - return false; - } + mRPIGLCommonInit(renderer); #else mSDLGLCommonInit(renderer); #endif

@@ -112,7 +48,11 @@ renderer->gl2.d.user = renderer;

renderer->gl2.d.lockAspectRatio = renderer->lockAspectRatio; renderer->gl2.d.lockIntegerScaling = renderer->lockIntegerScaling; renderer->gl2.d.filter = renderer->filter; +#ifdef BUILD_RASPI + renderer->gl2.d.swap = mRPIGLCommonSwap; +#else renderer->gl2.d.swap = mSDLGLCommonSwap; +#endif renderer->gl2.d.init(&renderer->gl2.d, 0); renderer->gl2.d.setDimensions(&renderer->gl2.d, renderer->width, renderer->height);

@@ -147,11 +87,7 @@ v->postFrame(v, renderer->outputBuffer);

} mCoreSyncWaitFrameEnd(&context->impl->sync); v->drawFrame(v); -#ifdef BUILD_RASPI - eglSwapBuffers(renderer->display, renderer->surface); -#else v->swap(v); -#endif } }

@@ -160,10 +96,10 @@ if (renderer->gl2.d.deinit) {

renderer->gl2.d.deinit(&renderer->gl2.d); } #ifdef BUILD_RASPI - eglMakeCurrent(renderer->display, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT); - eglDestroySurface(renderer->display, renderer->surface); - eglDestroyContext(renderer->display, renderer->context); - eglTerminate(renderer->display); + eglMakeCurrent(renderer->eglDisplay, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT); + eglDestroySurface(renderer->eglDisplay, renderer->eglSurface); + eglDestroyContext(renderer->eglDisplay, renderer->eglContext); + eglTerminate(renderer->eglDisplay); bcm_host_deinit(); #elif SDL_VERSION_ATLEAST(2, 0, 0) SDL_GL_DeleteContext(renderer->glCtx);
M src/platform/sdl/main.hsrc/platform/sdl/main.h

@@ -81,10 +81,10 @@ pixman_image_t* screenpix;

#endif #ifdef BUILD_RASPI - EGLDisplay display; - EGLSurface surface; - EGLContext context; - EGL_DISPMANX_WINDOW_T window; + EGLDisplay eglDisplay; + EGLSurface eglSurface; + EGLContext eglContext; + EGL_DISPMANX_WINDOW_T eglWindow; #endif #ifdef BUILD_PANDORA
A src/platform/sdl/rpi-common.c

@@ -0,0 +1,84 @@

+/* Copyright (c) 2013-2015 Jeffrey Pfau + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ +#include "main.h" + +#include <mgba/core/version.h> + +void mRPIGLCommonSwap(struct VideoBackend* context) { + struct mSDLRenderer* renderer = (struct mSDLRenderer*) context->user; + eglSwapBuffers(renderer->eglDisplay, renderer->eglSurface); +} + +void mRPIGLCommonInit(struct mSDLRenderer* renderer) { + bcm_host_init(); + renderer->eglDisplay = eglGetDisplay(EGL_DEFAULT_DISPLAY); + int major, minor; + if (EGL_FALSE == eglInitialize(renderer->eglDisplay, &major, &minor)) { + printf("Failed to initialize EGL"); + return false; + } + + if (EGL_FALSE == eglBindAPI(EGL_OPENGL_ES_API)) { + printf("Failed to get GLES API"); + return false; + } + + const EGLint requestConfig[] = { + EGL_RED_SIZE, 5, + EGL_GREEN_SIZE, 5, + EGL_BLUE_SIZE, 5, + EGL_ALPHA_SIZE, 1, + EGL_SURFACE_TYPE, EGL_WINDOW_BIT, + EGL_NONE + }; + + EGLConfig config; + EGLint numConfigs; + + if (EGL_FALSE == eglChooseConfig(renderer->eglDisplay, requestConfig, &config, 1, &numConfigs)) { + printf("Failed to choose EGL config\n"); + return false; + } + + const EGLint contextAttributes[] = { + EGL_CONTEXT_CLIENT_VERSION, 2, + EGL_NONE + }; + + int dispWidth = 240, dispHeight = 160, adjWidth; + renderer->eglContext = eglCreateContext(renderer->eglDisplay, config, EGL_NO_CONTEXT, contextAttributes); + graphics_get_display_size(0, &dispWidth, &dispHeight); + adjWidth = dispHeight / 2 * 3; + + DISPMANX_DISPLAY_HANDLE_T display = vc_dispmanx_display_open(0); + DISPMANX_UPDATE_HANDLE_T update = vc_dispmanx_update_start(0); + + VC_RECT_T destRect = { + .x = (dispWidth - adjWidth) / 2, + .y = 0, + .width = adjWidth, + .height = dispHeight + }; + + VC_RECT_T srcRect = { + .x = 0, + .y = 0, + .width = 240 << 16, + .height = 160 << 16 + }; + + DISPMANX_ELEMENT_HANDLE_T element = vc_dispmanx_element_add(update, display, 0, &destRect, 0, &srcRect, DISPMANX_PROTECTION_NONE, 0, 0, 0); + vc_dispmanx_update_submit_sync(update); + + renderer->eglWindow.element = element; + renderer->eglWindow.width = dispWidth; + renderer->eglWindow.height = dispHeight; + + renderer->eglSurface = eglCreateWindowSurface(renderer->eglDisplay, config, &renderer->eglWindow, 0); + if (EGL_FALSE == eglMakeCurrent(renderer->eglDisplay, renderer->eglSurface, renderer->eglSurface, renderer->eglContext)) { + return false; + } +}
A src/platform/sdl/rpi-common.h

@@ -0,0 +1,20 @@

+/* Copyright (c) 2013-2015 Jeffrey Pfau + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ +#ifndef SDL_RPI_COMMON_H +#define SDL_RPI_COMMON_H + +#include <mgba-util/common.h> + +CXX_GUARD_START + +#include "main.h" + +void mRPIGLCommonSwap(struct VideoBackend* context); +void mRPIGLCommonInit(struct mSDLRenderer* renderer); + +CXX_GUARD_END + +#endif