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render: get rid of the predeclared functions in the GL and Metal renderers.

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(others to come as I continue to update render backends!)
This commit is contained in:
Ryan C. Gordon
2018-09-24 12:30:47 -04:00
parent 051d1cfcd1
commit c01da21756
2 changed files with 474 additions and 546 deletions
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564
src/render/metal/SDL_render_metal.m
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@@ -46,62 +46,6 @@
/* Apple Metal renderer implementation */
static SDL_Renderer *METAL_CreateRenderer(SDL_Window * window, Uint32 flags);
static void METAL_WindowEvent(SDL_Renderer * renderer,
const SDL_WindowEvent *event);
static int METAL_GetOutputSize(SDL_Renderer * renderer, int *w, int *h);
static SDL_bool METAL_SupportsBlendMode(SDL_Renderer * renderer, SDL_BlendMode blendMode);
static int METAL_CreateTexture(SDL_Renderer * renderer, SDL_Texture * texture);
static int METAL_UpdateTexture(SDL_Renderer * renderer, SDL_Texture * texture,
const SDL_Rect * rect, const void *pixels,
int pitch);
static int METAL_UpdateTextureYUV(SDL_Renderer * renderer, SDL_Texture * texture,
const SDL_Rect * rect,
const Uint8 *Yplane, int Ypitch,
const Uint8 *Uplane, int Upitch,
const Uint8 *Vplane, int Vpitch);
static int METAL_LockTexture(SDL_Renderer * renderer, SDL_Texture * texture,
const SDL_Rect * rect, void **pixels, int *pitch);
static void METAL_UnlockTexture(SDL_Renderer * renderer, SDL_Texture * texture);
static int METAL_SetRenderTarget(SDL_Renderer * renderer, SDL_Texture * texture);
static int METAL_QueueSetViewport(SDL_Renderer * renderer, SDL_RenderCommand *cmd);
static int METAL_QueueSetDrawColor(SDL_Renderer * renderer, SDL_RenderCommand *cmd);
static int METAL_QueueDrawPoints(SDL_Renderer * renderer, SDL_RenderCommand *cmd, const SDL_FPoint * points,
int count);
static int METAL_QueueFillRects(SDL_Renderer * renderer, SDL_RenderCommand *cmd, const SDL_FRect * rects,
int count);
static int METAL_QueueCopy(SDL_Renderer * renderer, SDL_RenderCommand *cmd, SDL_Texture * texture,
const SDL_Rect * srcrect, const SDL_FRect * dstrect);
static int METAL_QueueCopyEx(SDL_Renderer * renderer, SDL_RenderCommand *cmd, SDL_Texture * texture,
const SDL_Rect * srcquad, const SDL_FRect * dstrect,
const double angle, const SDL_FPoint *center, const SDL_RendererFlip flip);
static int METAL_RunCommandQueue(SDL_Renderer * renderer, SDL_RenderCommand *cmd, void *vertices, size_t vertsize);
static int METAL_RenderReadPixels(SDL_Renderer * renderer, const SDL_Rect * rect,
Uint32 pixel_format, void * pixels, int pitch);
static void METAL_RenderPresent(SDL_Renderer * renderer);
static void METAL_DestroyTexture(SDL_Renderer * renderer, SDL_Texture * texture);
static void METAL_DestroyRenderer(SDL_Renderer * renderer);
static void *METAL_GetMetalLayer(SDL_Renderer * renderer);
static void *METAL_GetMetalCommandEncoder(SDL_Renderer * renderer);
SDL_RenderDriver METAL_RenderDriver = {
METAL_CreateRenderer,
{
"metal",
(SDL_RENDERER_ACCELERATED | SDL_RENDERER_PRESENTVSYNC | SDL_RENDERER_TARGETTEXTURE),
6,
{
SDL_PIXELFORMAT_ARGB8888,
SDL_PIXELFORMAT_ABGR8888,
SDL_PIXELFORMAT_YV12,
SDL_PIXELFORMAT_IYUV,
SDL_PIXELFORMAT_NV12,
SDL_PIXELFORMAT_NV21
},
0, 0,
}
};
/* macOS requires constants in a buffer to have a 256 byte alignment. */
#ifdef __MACOSX__
#define CONSTANT_ALIGN 256
@@ -456,251 +400,6 @@ ChoosePipelineState(METAL_RenderData *data, METAL_ShaderPipelines *pipelines, SD
return MakePipelineState(data, cache, [NSString stringWithFormat:@" (blend=custom 0x%x)", blendmode], blendmode);
}
static SDL_Renderer *
METAL_CreateRenderer(SDL_Window * window, Uint32 flags)
{ @autoreleasepool {
SDL_Renderer *renderer = NULL;
METAL_RenderData *data = NULL;
id<MTLDevice> mtldevice = nil;
SDL_SysWMinfo syswm;
SDL_VERSION(&syswm.version);
if (!SDL_GetWindowWMInfo(window, &syswm)) {
return NULL;
}
if (IsMetalAvailable(&syswm) == -1) {
return NULL;
}
renderer = (SDL_Renderer *) SDL_calloc(1, sizeof(*renderer));
if (!renderer) {
SDL_OutOfMemory();
return NULL;
}
// !!! FIXME: MTLCopyAllDevices() can find other GPUs on macOS...
mtldevice = MTLCreateSystemDefaultDevice();
if (mtldevice == nil) {
SDL_free(renderer);
SDL_SetError("Failed to obtain Metal device");
return NULL;
}
// !!! FIXME: error checking on all of this.
data = [[METAL_RenderData alloc] init];
renderer->driverdata = (void*)CFBridgingRetain(data);
renderer->window = window;
#ifdef __MACOSX__
NSView *view = Cocoa_Mtl_AddMetalView(window);
CAMetalLayer *layer = (CAMetalLayer *)[view layer];
layer.device = mtldevice;
//layer.colorspace = nil;
#else
UIView *view = UIKit_Mtl_AddMetalView(window);
CAMetalLayer *layer = (CAMetalLayer *)[view layer];
#endif
// Necessary for RenderReadPixels.
layer.framebufferOnly = NO;
data.mtldevice = layer.device;
data.mtllayer = layer;
id<MTLCommandQueue> mtlcmdqueue = [data.mtldevice newCommandQueue];
data.mtlcmdqueue = mtlcmdqueue;
data.mtlcmdqueue.label = @"SDL Metal Renderer";
data.mtlpassdesc = [MTLRenderPassDescriptor renderPassDescriptor];
NSError *err = nil;
// The compiled .metallib is embedded in a static array in a header file
// but the original shader source code is in SDL_shaders_metal.metal.
dispatch_data_t mtllibdata = dispatch_data_create(sdl_metallib, sdl_metallib_len, dispatch_get_global_queue(0, 0), ^{});
id<MTLLibrary> mtllibrary = [data.mtldevice newLibraryWithData:mtllibdata error:&err];
data.mtllibrary = mtllibrary;
SDL_assert(err == nil);
#if !__has_feature(objc_arc)
dispatch_release(mtllibdata);
#endif
data.mtllibrary.label = @"SDL Metal renderer shader library";
/* Do some shader pipeline state loading up-front rather than on demand. */
data.pipelinescount = 0;
data.allpipelines = NULL;
ChooseShaderPipelines(data, MTLPixelFormatBGRA8Unorm);
MTLSamplerDescriptor *samplerdesc = [[MTLSamplerDescriptor alloc] init];
samplerdesc.minFilter = MTLSamplerMinMagFilterNearest;
samplerdesc.magFilter = MTLSamplerMinMagFilterNearest;
id<MTLSamplerState> mtlsamplernearest = [data.mtldevice newSamplerStateWithDescriptor:samplerdesc];
data.mtlsamplernearest = mtlsamplernearest;
samplerdesc.minFilter = MTLSamplerMinMagFilterLinear;
samplerdesc.magFilter = MTLSamplerMinMagFilterLinear;
id<MTLSamplerState> mtlsamplerlinear = [data.mtldevice newSamplerStateWithDescriptor:samplerdesc];
data.mtlsamplerlinear = mtlsamplerlinear;
/* Note: matrices are column major. */
float identitytransform[16] = {
1.0f, 0.0f, 0.0f, 0.0f,
0.0f, 1.0f, 0.0f, 0.0f,
0.0f, 0.0f, 1.0f, 0.0f,
0.0f, 0.0f, 0.0f, 1.0f,
};
float halfpixeltransform[16] = {
1.0f, 0.0f, 0.0f, 0.0f,
0.0f, 1.0f, 0.0f, 0.0f,
0.0f, 0.0f, 1.0f, 0.0f,
0.5f, 0.5f, 0.0f, 1.0f,
};
/* Metal pads float3s to 16 bytes. */
float decodetransformJPEG[4*4] = {
0.0, -0.501960814, -0.501960814, 0.0, /* offset */
1.0000, 0.0000, 1.4020, 0.0, /* Rcoeff */
1.0000, -0.3441, -0.7141, 0.0, /* Gcoeff */
1.0000, 1.7720, 0.0000, 0.0, /* Bcoeff */
};
float decodetransformBT601[4*4] = {
-0.0627451017, -0.501960814, -0.501960814, 0.0, /* offset */
1.1644, 0.0000, 1.5960, 0.0, /* Rcoeff */
1.1644, -0.3918, -0.8130, 0.0, /* Gcoeff */
1.1644, 2.0172, 0.0000, 0.0, /* Bcoeff */
};
float decodetransformBT709[4*4] = {
0.0, -0.501960814, -0.501960814, 0.0, /* offset */
1.0000, 0.0000, 1.4020, 0.0, /* Rcoeff */
1.0000, -0.3441, -0.7141, 0.0, /* Gcoeff */
1.0000, 1.7720, 0.0000, 0.0, /* Bcoeff */
};
float clearverts[6] = {0.0f, 0.0f, 0.0f, 2.0f, 2.0f, 0.0f};
id<MTLBuffer> mtlbufconstantstaging = [data.mtldevice newBufferWithLength:CONSTANTS_LENGTH options:MTLResourceStorageModeShared];
#if !__has_feature(objc_arc)
[mtlbufconstantstaging autorelease];
#endif
mtlbufconstantstaging.label = @"SDL constant staging data";
id<MTLBuffer> mtlbufconstants = [data.mtldevice newBufferWithLength:CONSTANTS_LENGTH options:MTLResourceStorageModePrivate];
data.mtlbufconstants = mtlbufconstants;
data.mtlbufconstants.label = @"SDL constant data";
char *constantdata = [mtlbufconstantstaging contents];
SDL_memcpy(constantdata + CONSTANTS_OFFSET_IDENTITY, identitytransform, sizeof(identitytransform));
SDL_memcpy(constantdata + CONSTANTS_OFFSET_HALF_PIXEL_TRANSFORM, halfpixeltransform, sizeof(halfpixeltransform));
SDL_memcpy(constantdata + CONSTANTS_OFFSET_DECODE_JPEG, decodetransformJPEG, sizeof(decodetransformJPEG));
SDL_memcpy(constantdata + CONSTANTS_OFFSET_DECODE_BT601, decodetransformBT601, sizeof(decodetransformBT601));
SDL_memcpy(constantdata + CONSTANTS_OFFSET_DECODE_BT709, decodetransformBT709, sizeof(decodetransformBT709));
SDL_memcpy(constantdata + CONSTANTS_OFFSET_CLEAR_VERTS, clearverts, sizeof(clearverts));
id<MTLCommandBuffer> cmdbuffer = [data.mtlcmdqueue commandBuffer];
id<MTLBlitCommandEncoder> blitcmd = [cmdbuffer blitCommandEncoder];
[blitcmd copyFromBuffer:mtlbufconstantstaging sourceOffset:0 toBuffer:data.mtlbufconstants destinationOffset:0 size:CONSTANTS_LENGTH];
[blitcmd endEncoding];
[cmdbuffer commit];
// !!! FIXME: force more clears here so all the drawables are sane to start, and our static buffers are definitely flushed.
renderer->WindowEvent = METAL_WindowEvent;
renderer->GetOutputSize = METAL_GetOutputSize;
renderer->SupportsBlendMode = METAL_SupportsBlendMode;
renderer->CreateTexture = METAL_CreateTexture;
renderer->UpdateTexture = METAL_UpdateTexture;
renderer->UpdateTextureYUV = METAL_UpdateTextureYUV;
renderer->LockTexture = METAL_LockTexture;
renderer->UnlockTexture = METAL_UnlockTexture;
renderer->SetRenderTarget = METAL_SetRenderTarget;
renderer->QueueSetViewport = METAL_QueueSetViewport;
renderer->QueueSetDrawColor = METAL_QueueSetDrawColor;
renderer->QueueDrawPoints = METAL_QueueDrawPoints;
renderer->QueueDrawLines = METAL_QueueDrawPoints; // lines and points queue the same way.
renderer->QueueFillRects = METAL_QueueFillRects;
renderer->QueueCopy = METAL_QueueCopy;
renderer->QueueCopyEx = METAL_QueueCopyEx;
renderer->RunCommandQueue = METAL_RunCommandQueue;
renderer->RenderReadPixels = METAL_RenderReadPixels;
renderer->RenderPresent = METAL_RenderPresent;
renderer->DestroyTexture = METAL_DestroyTexture;
renderer->DestroyRenderer = METAL_DestroyRenderer;
renderer->GetMetalLayer = METAL_GetMetalLayer;
renderer->GetMetalCommandEncoder = METAL_GetMetalCommandEncoder;
renderer->info = METAL_RenderDriver.info;
renderer->info.flags = (SDL_RENDERER_ACCELERATED | SDL_RENDERER_TARGETTEXTURE);
renderer->always_batch = SDL_TRUE;
#if defined(__MACOSX__) && defined(MAC_OS_X_VERSION_10_13)
if (@available(macOS 10.13, *)) {
data.mtllayer.displaySyncEnabled = (flags & SDL_RENDERER_PRESENTVSYNC) != 0;
} else
#endif
{
renderer->info.flags |= SDL_RENDERER_PRESENTVSYNC;
}
/* https://developer.apple.com/metal/Metal-Feature-Set-Tables.pdf */
int maxtexsize = 4096;
#if defined(__MACOSX__)
maxtexsize = 16384;
#elif defined(__TVOS__)
maxtexsize = 8192;
#ifdef __TVOS_11_0
if (@available(tvOS 11.0, *)) {
if ([mtldevice supportsFeatureSet:MTLFeatureSet_tvOS_GPUFamily2_v1]) {
maxtexsize = 16384;
}
}
#endif
#else
#ifdef __IPHONE_11_0
if ([mtldevice supportsFeatureSet:MTLFeatureSet_iOS_GPUFamily4_v1]) {
maxtexsize = 16384;
} else
#endif
#ifdef __IPHONE_10_0
if ([mtldevice supportsFeatureSet:MTLFeatureSet_iOS_GPUFamily3_v1]) {
maxtexsize = 16384;
} else
#endif
if ([mtldevice supportsFeatureSet:MTLFeatureSet_iOS_GPUFamily2_v2] || [mtldevice supportsFeatureSet:MTLFeatureSet_iOS_GPUFamily1_v2]) {
maxtexsize = 8192;
} else {
maxtexsize = 4096;
}
#endif
renderer->info.max_texture_width = maxtexsize;
renderer->info.max_texture_height = maxtexsize;
#if !__has_feature(objc_arc)
[mtlcmdqueue release];
[mtllibrary release];
[samplerdesc release];
[mtlsamplernearest release];
[mtlsamplerlinear release];
[mtlbufconstants release];
[view release];
[data release];
[mtldevice release];
#endif
return renderer;
}}
static void
METAL_ActivateRenderCommandEncoder(SDL_Renderer * renderer, MTLLoadAction load, MTLClearColor *clear_color)
{
@@ -1573,6 +1272,269 @@ METAL_GetMetalCommandEncoder(SDL_Renderer * renderer)
return (__bridge void*)data.mtlcmdencoder;
}}
static SDL_Renderer *
METAL_CreateRenderer(SDL_Window * window, Uint32 flags)
{ @autoreleasepool {
SDL_Renderer *renderer = NULL;
METAL_RenderData *data = NULL;
id<MTLDevice> mtldevice = nil;
SDL_SysWMinfo syswm;
SDL_VERSION(&syswm.version);
if (!SDL_GetWindowWMInfo(window, &syswm)) {
return NULL;
}
if (IsMetalAvailable(&syswm) == -1) {
return NULL;
}
renderer = (SDL_Renderer *) SDL_calloc(1, sizeof(*renderer));
if (!renderer) {
SDL_OutOfMemory();
return NULL;
}
// !!! FIXME: MTLCopyAllDevices() can find other GPUs on macOS...
mtldevice = MTLCreateSystemDefaultDevice();
if (mtldevice == nil) {
SDL_free(renderer);
SDL_SetError("Failed to obtain Metal device");
return NULL;
}
// !!! FIXME: error checking on all of this.
data = [[METAL_RenderData alloc] init];
renderer->driverdata = (void*)CFBridgingRetain(data);
renderer->window = window;
#ifdef __MACOSX__
NSView *view = Cocoa_Mtl_AddMetalView(window);
CAMetalLayer *layer = (CAMetalLayer *)[view layer];
layer.device = mtldevice;
//layer.colorspace = nil;
#else
UIView *view = UIKit_Mtl_AddMetalView(window);
CAMetalLayer *layer = (CAMetalLayer *)[view layer];
#endif
// Necessary for RenderReadPixels.
layer.framebufferOnly = NO;
data.mtldevice = layer.device;
data.mtllayer = layer;
id<MTLCommandQueue> mtlcmdqueue = [data.mtldevice newCommandQueue];
data.mtlcmdqueue = mtlcmdqueue;
data.mtlcmdqueue.label = @"SDL Metal Renderer";
data.mtlpassdesc = [MTLRenderPassDescriptor renderPassDescriptor];
NSError *err = nil;
// The compiled .metallib is embedded in a static array in a header file
// but the original shader source code is in SDL_shaders_metal.metal.
dispatch_data_t mtllibdata = dispatch_data_create(sdl_metallib, sdl_metallib_len, dispatch_get_global_queue(0, 0), ^{});
id<MTLLibrary> mtllibrary = [data.mtldevice newLibraryWithData:mtllibdata error:&err];
data.mtllibrary = mtllibrary;
SDL_assert(err == nil);
#if !__has_feature(objc_arc)
dispatch_release(mtllibdata);
#endif
data.mtllibrary.label = @"SDL Metal renderer shader library";
/* Do some shader pipeline state loading up-front rather than on demand. */
data.pipelinescount = 0;
data.allpipelines = NULL;
ChooseShaderPipelines(data, MTLPixelFormatBGRA8Unorm);
MTLSamplerDescriptor *samplerdesc = [[MTLSamplerDescriptor alloc] init];
samplerdesc.minFilter = MTLSamplerMinMagFilterNearest;
samplerdesc.magFilter = MTLSamplerMinMagFilterNearest;
id<MTLSamplerState> mtlsamplernearest = [data.mtldevice newSamplerStateWithDescriptor:samplerdesc];
data.mtlsamplernearest = mtlsamplernearest;
samplerdesc.minFilter = MTLSamplerMinMagFilterLinear;
samplerdesc.magFilter = MTLSamplerMinMagFilterLinear;
id<MTLSamplerState> mtlsamplerlinear = [data.mtldevice newSamplerStateWithDescriptor:samplerdesc];
data.mtlsamplerlinear = mtlsamplerlinear;
/* Note: matrices are column major. */
float identitytransform[16] = {
1.0f, 0.0f, 0.0f, 0.0f,
0.0f, 1.0f, 0.0f, 0.0f,
0.0f, 0.0f, 1.0f, 0.0f,
0.0f, 0.0f, 0.0f, 1.0f,
};
float halfpixeltransform[16] = {
1.0f, 0.0f, 0.0f, 0.0f,
0.0f, 1.0f, 0.0f, 0.0f,
0.0f, 0.0f, 1.0f, 0.0f,
0.5f, 0.5f, 0.0f, 1.0f,
};
/* Metal pads float3s to 16 bytes. */
float decodetransformJPEG[4*4] = {
0.0, -0.501960814, -0.501960814, 0.0, /* offset */
1.0000, 0.0000, 1.4020, 0.0, /* Rcoeff */
1.0000, -0.3441, -0.7141, 0.0, /* Gcoeff */
1.0000, 1.7720, 0.0000, 0.0, /* Bcoeff */
};
float decodetransformBT601[4*4] = {
-0.0627451017, -0.501960814, -0.501960814, 0.0, /* offset */
1.1644, 0.0000, 1.5960, 0.0, /* Rcoeff */
1.1644, -0.3918, -0.8130, 0.0, /* Gcoeff */
1.1644, 2.0172, 0.0000, 0.0, /* Bcoeff */
};
float decodetransformBT709[4*4] = {
0.0, -0.501960814, -0.501960814, 0.0, /* offset */
1.0000, 0.0000, 1.4020, 0.0, /* Rcoeff */
1.0000, -0.3441, -0.7141, 0.0, /* Gcoeff */
1.0000, 1.7720, 0.0000, 0.0, /* Bcoeff */
};
float clearverts[6] = {0.0f, 0.0f, 0.0f, 2.0f, 2.0f, 0.0f};
id<MTLBuffer> mtlbufconstantstaging = [data.mtldevice newBufferWithLength:CONSTANTS_LENGTH options:MTLResourceStorageModeShared];
#if !__has_feature(objc_arc)
[mtlbufconstantstaging autorelease];
#endif
mtlbufconstantstaging.label = @"SDL constant staging data";
id<MTLBuffer> mtlbufconstants = [data.mtldevice newBufferWithLength:CONSTANTS_LENGTH options:MTLResourceStorageModePrivate];
data.mtlbufconstants = mtlbufconstants;
data.mtlbufconstants.label = @"SDL constant data";
char *constantdata = [mtlbufconstantstaging contents];
SDL_memcpy(constantdata + CONSTANTS_OFFSET_IDENTITY, identitytransform, sizeof(identitytransform));
SDL_memcpy(constantdata + CONSTANTS_OFFSET_HALF_PIXEL_TRANSFORM, halfpixeltransform, sizeof(halfpixeltransform));
SDL_memcpy(constantdata + CONSTANTS_OFFSET_DECODE_JPEG, decodetransformJPEG, sizeof(decodetransformJPEG));
SDL_memcpy(constantdata + CONSTANTS_OFFSET_DECODE_BT601, decodetransformBT601, sizeof(decodetransformBT601));
SDL_memcpy(constantdata + CONSTANTS_OFFSET_DECODE_BT709, decodetransformBT709, sizeof(decodetransformBT709));
SDL_memcpy(constantdata + CONSTANTS_OFFSET_CLEAR_VERTS, clearverts, sizeof(clearverts));
id<MTLCommandBuffer> cmdbuffer = [data.mtlcmdqueue commandBuffer];
id<MTLBlitCommandEncoder> blitcmd = [cmdbuffer blitCommandEncoder];
[blitcmd copyFromBuffer:mtlbufconstantstaging sourceOffset:0 toBuffer:data.mtlbufconstants destinationOffset:0 size:CONSTANTS_LENGTH];
[blitcmd endEncoding];
[cmdbuffer commit];
// !!! FIXME: force more clears here so all the drawables are sane to start, and our static buffers are definitely flushed.
renderer->WindowEvent = METAL_WindowEvent;
renderer->GetOutputSize = METAL_GetOutputSize;
renderer->SupportsBlendMode = METAL_SupportsBlendMode;
renderer->CreateTexture = METAL_CreateTexture;
renderer->UpdateTexture = METAL_UpdateTexture;
renderer->UpdateTextureYUV = METAL_UpdateTextureYUV;
renderer->LockTexture = METAL_LockTexture;
renderer->UnlockTexture = METAL_UnlockTexture;
renderer->SetRenderTarget = METAL_SetRenderTarget;
renderer->QueueSetViewport = METAL_QueueSetViewport;
renderer->QueueSetDrawColor = METAL_QueueSetDrawColor;
renderer->QueueDrawPoints = METAL_QueueDrawPoints;
renderer->QueueDrawLines = METAL_QueueDrawPoints; // lines and points queue the same way.
renderer->QueueFillRects = METAL_QueueFillRects;
renderer->QueueCopy = METAL_QueueCopy;
renderer->QueueCopyEx = METAL_QueueCopyEx;
renderer->RunCommandQueue = METAL_RunCommandQueue;
renderer->RenderReadPixels = METAL_RenderReadPixels;
renderer->RenderPresent = METAL_RenderPresent;
renderer->DestroyTexture = METAL_DestroyTexture;
renderer->DestroyRenderer = METAL_DestroyRenderer;
renderer->GetMetalLayer = METAL_GetMetalLayer;
renderer->GetMetalCommandEncoder = METAL_GetMetalCommandEncoder;
renderer->info = METAL_RenderDriver.info;
renderer->info.flags = (SDL_RENDERER_ACCELERATED | SDL_RENDERER_TARGETTEXTURE);
renderer->always_batch = SDL_TRUE;
#if defined(__MACOSX__) && defined(MAC_OS_X_VERSION_10_13)
if (@available(macOS 10.13, *)) {
data.mtllayer.displaySyncEnabled = (flags & SDL_RENDERER_PRESENTVSYNC) != 0;
} else
#endif
{
renderer->info.flags |= SDL_RENDERER_PRESENTVSYNC;
}
/* https://developer.apple.com/metal/Metal-Feature-Set-Tables.pdf */
int maxtexsize = 4096;
#if defined(__MACOSX__)
maxtexsize = 16384;
#elif defined(__TVOS__)
maxtexsize = 8192;
#ifdef __TVOS_11_0
if (@available(tvOS 11.0, *)) {
if ([mtldevice supportsFeatureSet:MTLFeatureSet_tvOS_GPUFamily2_v1]) {
maxtexsize = 16384;
}
}
#endif
#else
#ifdef __IPHONE_11_0
if ([mtldevice supportsFeatureSet:MTLFeatureSet_iOS_GPUFamily4_v1]) {
maxtexsize = 16384;
} else
#endif
#ifdef __IPHONE_10_0
if ([mtldevice supportsFeatureSet:MTLFeatureSet_iOS_GPUFamily3_v1]) {
maxtexsize = 16384;
} else
#endif
if ([mtldevice supportsFeatureSet:MTLFeatureSet_iOS_GPUFamily2_v2] || [mtldevice supportsFeatureSet:MTLFeatureSet_iOS_GPUFamily1_v2]) {
maxtexsize = 8192;
} else {
maxtexsize = 4096;
}
#endif
renderer->info.max_texture_width = maxtexsize;
renderer->info.max_texture_height = maxtexsize;
#if !__has_feature(objc_arc)
[mtlcmdqueue release];
[mtllibrary release];
[samplerdesc release];
[mtlsamplernearest release];
[mtlsamplerlinear release];
[mtlbufconstants release];
[view release];
[data release];
[mtldevice release];
#endif
return renderer;
}}
SDL_RenderDriver METAL_RenderDriver = {
METAL_CreateRenderer,
{
"metal",
(SDL_RENDERER_ACCELERATED | SDL_RENDERER_PRESENTVSYNC | SDL_RENDERER_TARGETTEXTURE),
6,
{
SDL_PIXELFORMAT_ARGB8888,
SDL_PIXELFORMAT_ABGR8888,
SDL_PIXELFORMAT_YV12,
SDL_PIXELFORMAT_IYUV,
SDL_PIXELFORMAT_NV12,
SDL_PIXELFORMAT_NV21
},
0, 0,
}
};
#endif /* SDL_VIDEO_RENDER_METAL && !SDL_RENDER_DISABLED */
/* vi: set ts=4 sw=4 expandtab: */