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desmume
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cli: user proper SDL2 OpenGL-accelerated rendering primitives 

additionally:
- don't allocate memory for surfaces and textures over and over
- use one texture for each NDS screen - this allows to easily
  add support for horizontal screen layout.
This commit is contained in:
rofl0r 2021-10-25 02:40:06 +00:00
parent 7e0336d57d
commit 699f63d688
1 changed files with 34 additions and 16 deletions
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50
desmume/src/frontend/posix/cli/main.cpp
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@ -82,6 +82,7 @@ static float nds_screen_size_ratio = 1.0f;
static SDL_Window * window;
static SDL_Renderer * renderer;
static SDL_Texture *screen[2];
/* Flags to pass to SDL_SetVideoMode */
static int sdl_videoFlags;
@ -263,20 +264,28 @@ resizeWindow_stub (u16 width, u16 height, void *screen_texture) {
static void
Draw( void) {
const NDSDisplayInfo &displayInfo = GPU->GetDisplayInfo();
const size_t pixCount = GPU_FRAMEBUFFER_NATIVE_WIDTH * GPU_FRAMEBUFFER_NATIVE_HEIGHT;
ColorspaceApplyIntensityToBuffer16<false, false>(displayInfo.nativeBuffer16[NDSDisplayID_Main], pixCount, displayInfo.backlightIntensity[NDSDisplayID_Main]);
ColorspaceApplyIntensityToBuffer16<false, false>(displayInfo.nativeBuffer16[NDSDisplayID_Touch], pixCount, displayInfo.backlightIntensity[NDSDisplayID_Touch]);
SDL_Surface *rawImage = SDL_CreateRGBSurfaceFrom(displayInfo.masterNativeBuffer16, GPU_FRAMEBUFFER_NATIVE_WIDTH, GPU_FRAMEBUFFER_NATIVE_HEIGHT * 2, 16, GPU_FRAMEBUFFER_NATIVE_WIDTH * sizeof(u16), 0x001F, 0x03E0, 0x7C00, 0);
if(rawImage == NULL) return;
SDL_Texture *texture = SDL_CreateTextureFromSurface(renderer, rawImage);
SDL_FreeSurface(rawImage);
SDL_RenderCopy(renderer, texture, NULL, NULL);
SDL_RenderPresent(renderer);
return;
const NDSDisplayInfo &displayInfo = GPU->GetDisplayInfo();
const size_t pixCount = GPU_FRAMEBUFFER_NATIVE_WIDTH * GPU_FRAMEBUFFER_NATIVE_HEIGHT;
ColorspaceApplyIntensityToBuffer16<false, false>(displayInfo.nativeBuffer16[NDSDisplayID_Main], pixCount, displayInfo.backlightIntensity[NDSDisplayID_Main]);
ColorspaceApplyIntensityToBuffer16<false, false>(displayInfo.nativeBuffer16[NDSDisplayID_Touch], pixCount, displayInfo.backlightIntensity[NDSDisplayID_Touch]);
static const SDL_Rect destrect[2] = {
{ 0,0,
GPU_FRAMEBUFFER_NATIVE_WIDTH, GPU_FRAMEBUFFER_NATIVE_HEIGHT},
{ 0, GPU_FRAMEBUFFER_NATIVE_HEIGHT,
GPU_FRAMEBUFFER_NATIVE_WIDTH, GPU_FRAMEBUFFER_NATIVE_HEIGHT},
};
unsigned i, off = 0, n = pixCount*2;
for(i = 0; i < 2; ++i) {
void *p = 0;
int pitch;
SDL_LockTexture(screen[i], NULL, &p, &pitch);
memcpy(p, ((char*)displayInfo.masterNativeBuffer16)+off, n);
SDL_UnlockTexture(screen[i]);
SDL_RenderCopy(renderer, screen[i], NULL, &destrect[i]);
off += n;
}
SDL_RenderPresent(renderer);
return;
}
static void desmume_cycle(struct ctrls_event_config * cfg)
@ -333,6 +342,7 @@ int main(int argc, char ** argv) {
int limiter_frame_counter = 0;
int limiter_tick0 = 0;
int error;
unsigned i;
GKeyFile *keyfile;
@ -471,8 +481,9 @@ int main(int argc, char ** argv) {
return 1;
}
sdl_videoFlags |= SDL_SWSURFACE;
window = SDL_CreateWindow( "Desmume SDL", SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, 256, 384, sdl_videoFlags );
sdl_videoFlags |= SDL_WINDOW_OPENGL;
window = SDL_CreateWindow( "Desmume SDL", SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED,
256, 384, sdl_videoFlags );
if ( !window ) {
fprintf( stderr, "Window creation failed: %s\n", SDL_GetError( ) );
@ -481,6 +492,13 @@ int main(int argc, char ** argv) {
renderer = SDL_CreateRenderer(window, -1, SDL_RENDERER_ACCELERATED);
uint32_t desmume_pixelformat = SDL_MasksToPixelFormatEnum(16, 0x001F, 0x03E0, 0x7C00, 0);
for(i = 0; i < 2; ++i)
screen[i] = SDL_CreateTexture(renderer, desmume_pixelformat, SDL_TEXTUREACCESS_STREAMING,
GPU_FRAMEBUFFER_NATIVE_WIDTH, GPU_FRAMEBUFFER_NATIVE_HEIGHT);
/* Initialize joysticks */
if(!init_joy()) return 1;
/* Load keyboard and joystick configuration */