🥇Prepare yon pwojè SDL2 pou lansman sou Android

Bonjou tout moun. Jodi a nou pral gade ki jan yo prepare yon pwojè lè l sèvi avèk bibliyotèk sdl2 pou kouri yon jwèt sou android.

Premye ou bezwen telechaje Android Studio, enstale li ak tout sa ki nesesè nan anviwònman devlopman sa a. Pou egzanp, kounye a mwen gen Kde Neon, ak sou sistèm sa a gen yon dosye /etc/environment, menm dosye a egziste nan ubuntu. Varyab sa yo bezwen antre nan la.

ANDROID_HOME=/home/username/Android/Sdk
ANDROID_NDK_HOME=/home/username/ndk

Ou bezwen tou telechaje NDK nan sit entènèt ofisyèl la, depake li nan anyè lakay ou epi chanje non li an NDK. Apre sa, ou bezwen telechaje bibliyotèk SDL2 la sou sit entènèt la libsdl.org. Pou itilize sdl2 pou android, li enpòtan pou pa konpile li pou òdinatè a, paske Lè sa a, li pa pral konpile pou android. Nan lòd pou pwojè a konpile, ou bezwen kreye yon pwojè nan estidyo android, nenpòt moun, yo aksepte lisans lan, otreman SDL2 pral mande pou yon lisans lè bati.

Pou li fichye nan android soti nan byen, ou bezwen sèvi ak fonksyon yo SDL_RWops. Isit la se yon egzanp itilizasyon nan kòd pou travay ak yon font. Nan ka sa a, nou pa ka sèvi ak FT_New_Face, men nou pral pito itilize FT_New_Memory_Face pou sèvi ak done yo te deja li yo.

#ifdef __ANDROID__
        snprintf ( path, 254, "fonts/%s", file );
        SDL_RWops *rw = SDL_RWFromFile(path, "r" );
        char *memory = ( char * ) calloc ( rw->hidden.androidio.size, 1 );
        SDL_RWread(rw, memory, 1, rw->hidden.androidio.size );

        FT_New_Memory_Face(*this->ft_library, ( const FT_Byte  * )memory, rw->hidden.androidio.size, 0, &this;->face );
        SDL_RWclose(rw);
        free ( memory );
#else
        snprintf ( path, 254, "%s/fonts/%s", DEFAULT_ASSETS, file );
        if ( access ( path, F_OK ) ) {
                fprintf ( stderr, "not found font: %sn", path );
                exit ( EXIT_FAILURE );
        }
        struct stat st;
        stat ( path, &st; );
        FILE *rw = fopen ( path, "r" );
        char *memory = ( char * ) calloc ( st.st_size, 1 );
        fread ( memory, 1, st.st_size, rw );

        FT_New_Memory_Face ( *this->ft_library, ( const FT_Byte * ) memory, st.st_size, 0, &this;->face );
        fclose ( rw );
        free ( memory );
#endif

Mwen menm mwen te kreye yon dosye header konekte headers SDL2. NO_SDL_GLEXT nesesè pou konpilasyon reyisi sou Android.

#ifdef __ANDROID__
#include "SDL.h"
#include "SDL_video.h"
#include "SDL_events.h"
#define NO_SDL_GLEXT 
#include "SDL_opengl.h"
#include "SDL_opengles2.h"
#else
#include <SDL2/SDL.h>
#include <SDL2/SDL_video.h>
#include <SDL2/SDL_opengl.h>
#include <SDL2/SDL_opengles2.h>
#endif

Se konsa, pwojè a pare, shaders yo pare pou Opengl Es 3.0. Koulye a, nou bezwen kreye yon android-pwojè. Pou fè sa, depake achiv SDL2 la. Ale nan bati-scripts. Epi nou fè l konsa.

./androidbuild.sh com.xverizex.test main.cpp

Mesaj sa a ap parèt.

To build and install to a device for testing, run the following:
cd /home/cf/programs/SDL2-2.0.10/build/com.xverizex.test
./gradlew installDebug

Ale nan com.xverizex.test. Ale nan com.xverizex.test/app/jni/src. Nou kopye pwojè jwèt nou an. Epi nou chanje dosye a Android.mk, nan ka mwen an li sanble sa a.

LOCAL_PATH := $(call my-dir)

include $(CLEAR_VARS)

LOCAL_MODULE := main

SDL_PATH := ../SDL
FREETYPE_PATH := ../Freetype2

LOCAL_C_INCLUDES := $(LOCAL_PATH)/$(SDL_PATH)/include $(LOCAL_PATH)/$(FREETYPE_PATH)/include

# Add your application source files here...
LOCAL_SRC_FILES := ./engine/lang.cpp ./engine/actor.cpp ./engine/sprite.cpp ./engine/shaders.cpp ./engine/box.cpp ./engine/menubox.cpp ./engine/load_manager.cpp ./engine/main.cpp ./engine/font.cpp ./engine/model.cpp ./engine/button.cpp ./theme.cpp ./level_manager.cpp ./menu/menu.cpp

LOCAL_SHARED_LIBRARIES := SDL2 Freetype2

LOCAL_LDLIBS := -lGLESv1_CM -lGLESv2 -llog 

include $(BUILD_SHARED_LIBRARY)

Kòm ou ka deja remake, mwen enkli bibliyotèk Freetype2 la. Mwen te jwenn yon sèl pare sou github pou android, men li pa t 'travay, mwen te bezwen chanje yon bagay. Nou menm tou nou kreye yon anyè app/src/main/assets. Nou mete resous nou yo ladan l (polices, sprites, modèl 3D).

Koulye a, kite a konfigirasyon Freetype2 pou android. Telechaje soti nan github mwen an Link, epi kopye anyè Freetype2 nan anyè app/jni/. Tout pare. Koulye a, kouri lòd la ./gradlew installDebug nan com.xverizex.test. Pou kapab ajoute jwèt sa a nan android, debogaj dwe pèmèt nan android. Pou fè sa, ou bezwen ale nan paramèt, ale nan "Sistèm", ale nan "Konsènan grenn" epi klike sou opsyon "Konstwi nimewo" apeprè sis fwa. Lè sa a, tounen ak opsyon pou devlopè yo ap parèt. Ale nan epi vire l 'sou, tou vire sou "USB debogaj" opsyon an. Koulye a, ou bezwen jwenn yon kle pou grenn lan. Pou fè sa, enstale pwogram adb la. Nou lanse koki adb la nan konsole a, epi yon kle parèt nan tablèt la ki dwe aksepte. Sa a se li, kounye a jwèt yo ka telechaje sou tablèt ou a.

Sous: www.habr.com

Prepare yon pwojè SDL2 pou kouri sou android

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