Nintendo 3DS >> C/C++ >> GPU
Fill Color
參考資訊：
1. citro2d
2. libctru doc
3. 3ds-examples
說明：
| API |
|---|
| bool C3D_Init(size_t cmdBufSize) |
| bool C3D_FrameBegin(u8 flags) |
| void C3D_FrameEnd(u8 flags) |
| void C3D_Fini(void) |
| bool C2D_Init(size_t maxObjects) |
| void C2D_Prepare(void) |
| C3D_RenderTarget* C2D_CreateScreenTarget(gfxScreen_t screen, gfx3dSide_t side) |
| C2D_CONSTEXPR u32 C2D_Color32(u8 r, u8 g, u8 b, u8 a) |
| void C2D_TargetClear(C3D_RenderTarget *target, u32 color) |
| void C2D_SceneBegin(C3D_RenderTarget *target) |
| void C2D_Fini(void) |
main.c
#include <citro2d.h>
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
int main(void)
{
gfxInitDefault();
C3D_Init(C3D_DEFAULT_CMDBUF_SIZE);
C2D_Init(C2D_DEFAULT_MAX_OBJECTS);
C2D_Prepare();
C3D_RenderTarget* top = C2D_CreateScreenTarget(GFX_TOP, GFX_LEFT);
C3D_FrameBegin(C3D_FRAME_SYNCDRAW);
C2D_TargetClear(top, C2D_Color32(0xff, 0x00, 0x00, 0xff));
C2D_SceneBegin(top);
C3D_FrameEnd(0);
C2D_Fini();
C3D_Fini();
svcSleepThread(3000000000LL);
gfxExit();
return 0;
}
Makefile
include $(DEVKITARM)/3ds_rules all: arm-none-eabi-gcc -mword-relocations -ffunction-sections -march=armv6k -mtune=mpcore -mfloat-abi=hard -mtp=soft -I/opt/devkitpro/libctru/include -I/opt/devkitpro/portlibs/3ds/include/ -I/opt/devkitpro/portlibs/3ds/include/opus/ -I/opt/devkitpro/portlibs/3ds/include/SDL -D__3DS__ -c main.c -o main.o arm-none-eabi-gcc -specs=3dsx.specs -march=armv6k -mtune=mpcore -mfloat-abi=hard -mtp=soft main.o -L/opt/devkitpro/portlibs/3ds/lib -lopusfile -logg -lopus -L/opt/devkitpro/libctru/lib -lSDL_image -lSDL_mixer -lSDL_ttf -lSDL_gfx -lSDL -lfreetype -lbz2 -lpng -ljpeg -lz -lcitro2d -lcitro3d -lctru -lm -lstdc++ -o main.elf smdhtool --create "main" "devkitARM" "steward" /opt/devkitpro/libctru/default_icon.png main.smdh 3dsxtool main.elf main.3dsx --smdh=main.smdh clean: rm -rf main.o main.elf main.3dsx main.smdh
編譯、執行
$ sudo docker run --rm -it -v $(pwd):/source nds-env /bin/bash root@c18881035cba:/source# make && exit $ citra main.3dsx
完成
