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The Metal renderer is now fully functioning.

This commit is contained in:
Yuval Dolev 2020-01-08 21:44:47 +02:00
parent a18ef3197a
commit 521fb82113
4 changed files with 105 additions and 11 deletions
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82
metal/4ed_metal_render.mm
View File

@ -10,6 +10,8 @@
////////////////////////////////
typedef id<MTLTexture> Metal_Texture;
struct Metal_Buffer{
Node node;
@ -18,22 +20,24 @@ struct Metal_Buffer{
u64 last_reuse_time;
};
struct Metal_Texture{
};
////////////////////////////////
@interface Metal_Renderer : NSObject<MTKViewDelegate>
@property (nonatomic) Render_Target *target;
- (nonnull instancetype)initWithMetalKitView:(nonnull MTKView*)mtkView;
- (u32)get_texture_of_dim:(Vec3_i32)dim kind:(Texture_Kind)kind;
- (b32)fill_texture:(u32)texture kind:(Texture_Kind)kind pos:(Vec3_i32)p dim:(Vec3_i32)dim data:(void*)data;
- (Metal_Buffer*)get_reusable_buffer_with_size:(NSUInteger)size;
- (void)add_reusable_buffer:(Metal_Buffer*)buffer;
@end
////////////////////////////////
global_const u32 metal__max_textures = 256;
////////////////////////////////
global_const char *metal__shaders_source = R"(
#include <metal_stdlib>
#include <simd/simd.h>
@ -106,11 +110,14 @@ return(result);
}
fragment float4
fragment_shader(Rasterizer_Data in [[stage_in]]){
fragment_shader(Rasterizer_Data in [[stage_in]],
texture2d_array<half> in_texture [[texture(0)]]){
float has_thickness = step(0.49, in.half_thickness);
// float does_not_have_thickness = (1.0 - has_thickness);
float does_not_have_thickness = (1.0 - has_thickness);
// TODO(yuval): Sample texture here.
constexpr sampler texture_sampler(coord::normalized, min_filter::linear, mag_filter::linear, mip_filter::linear);
half sample_value = in_texture.sample(texture_sampler, in.uvw.xy, in.uvw.z).r;
sample_value *= does_not_have_thickness;
float2 center = in.uvw.xy;
float roundness = in.uvw.z;
@ -121,7 +128,7 @@ float shape_value = (1.0 - smoothstep(-1.0, 0.0, sd));
shape_value *= has_thickness;
// TOOD(yuval): Add sample_value to alpha
float4 out_color = in.color;// float4(in.color.xyz, in.color.a * (shape_value));
float4 out_color = float4(in.color.xyz, in.color.a * (sample_value + shape_value));
return(out_color);
}
)";
@ -153,6 +160,9 @@ metal__make_buffer(u32 size, id<MTLDevice> device){
Node buffer_cache;
u64 last_buffer_cache_purge_time;
Metal_Texture *textures;
u32 next_texture_handle_index;
}
- (nonnull instancetype)initWithMetalKitView:(nonnull MTKView*)mtk_view{
@ -209,6 +219,7 @@ metal__make_buffer(u32 size, id<MTLDevice> device){
pipeline_state_descriptor.vertexFunction = vertex_function;
pipeline_state_descriptor.fragmentFunction = fragment_function;
pipeline_state_descriptor.vertexDescriptor = vertexDescriptor;
pipeline_state_descriptor.sampleCount = mtk_view.sampleCount;
pipeline_state_descriptor.colorAttachments[0].pixelFormat = mtk_view.colorPixelFormat;
pipeline_state_descriptor.colorAttachments[0].blendingEnabled = YES;
pipeline_state_descriptor.colorAttachments[0].alphaBlendOperation = MTLBlendOperationAdd;
@ -231,6 +242,10 @@ metal__make_buffer(u32 size, id<MTLDevice> device){
dll_init_sentinel(&buffer_cache);
last_buffer_cache_purge_time = system_now_time();
// NOTE(yuval): Initialize the textures array
textures = (Metal_Texture*)system_memory_allocate(metal__max_textures * sizeof(Metal_Texture), file_name_line_number_lit_u8);
next_texture_handle_index = 0;
// NOTE(yuval): Create a capture scope for gpu frame capture
capture_scope = [[MTLCaptureManager sharedCaptureManager]
newCaptureScopeWithDevice:device];
@ -338,6 +353,12 @@ metal__make_buffer(u32 size, id<MTLDevice> device){
Face* face = font_set_face_from_id(font_set, group->face_id);
if (face != 0){
// TODO(yuval): Bind face texture
u32 texture_handle = face->texture;
Metal_Texture texture = textures[texture_handle];
if (texture != 0){
[render_encoder setFragmentTexture:texture
atIndex:0];
}
} else{
// TODO(yuval): Bind default texture
}
@ -391,6 +412,51 @@ metal__make_buffer(u32 size, id<MTLDevice> device){
[capture_scope endScope];
}
- (u32)get_texture_of_dim:(Vec3_i32)dim kind:(Texture_Kind)kind{
u32 handle = next_texture_handle_index;
// NOTE(yuval): Create a texture descriptor
MTLTextureDescriptor *texture_descriptor = [[MTLTextureDescriptor alloc] init];
texture_descriptor.textureType = MTLTextureType2DArray;
texture_descriptor.pixelFormat = MTLPixelFormatR8Unorm;
texture_descriptor.width = dim.x;
texture_descriptor.height = dim.y;
texture_descriptor.depth = dim.z;
// NOTE(yuval): Create the texture from the device using the descriptor and add it to the textures array
Metal_Texture texture = [device newTextureWithDescriptor:texture_descriptor];
textures[handle] = texture;
next_texture_handle_index += 1;
return handle;
}
- (b32)fill_texture:(u32)handle kind:(Texture_Kind)kind pos:(Vec3_i32)p dim:(Vec3_i32)dim data:(void*)data{
b32 result = false;
if (data){
Metal_Texture texture = textures[handle];
if (texture != 0){
MTLRegion replace_region = {
{(NSUInteger)p.x, (NSUInteger)p.y, (NSUInteger)p.z},
{(NSUInteger)dim.x, (NSUInteger)dim.y, (NSUInteger)dim.z}
};
// NOTE(yuval): Fill the texture with data
[texture replaceRegion:replace_region
mipmapLevel:0
withBytes:data
bytesPerRow:dim.x];
result = true;
}
}
return result;
}
- (Metal_Buffer*)get_reusable_buffer_with_size:(NSUInteger)size{
// NOTE(yuval): This routine is a modified version of Dear ImGui's MetalContext::dequeueReusableBufferOfLength in imgui_impl_metal.mm

8
platform_mac/mac_4ed.mm
View File

@ -318,6 +318,7 @@ mac_file_can_be_made(u8* filename){
function void
mac_resize(float width, float height){
if ((width > 0.0f) && (height > 0.0f)){
#if 1
NSSize coord_size = NSMakeSize(width, height);
NSSize backing_size = [mac_vars.view convertSizeToBacking:coord_size];
@ -326,6 +327,13 @@ mac_resize(float width, float height){
target.width = (i32)backing_size.width;
target.height = (i32)backing_size.height;
#else
mac_vars.width = (i32)width;
mac_vars.height = (i32)height;
target.width = (i32)width;
target.height = (i32)height;
#endif
}
system_signal_step(0);

6
platform_mac/mac_4ed_functions.mm
View File

@ -30,7 +30,7 @@ system_get_path_sig(){
local_persist b32 has_stashed_4ed_path = false;
if (!has_stashed_4ed_path){
local_const i32 binary_path_capacity = KB(32);
u8 *memory = (u8*)system_memory_allocate(binary_path_capacity, string_u8_litexpr(file_name_line_number));
u8 *memory = (u8*)system_memory_allocate(binary_path_capacity, file_name_line_number_lit_u8);
pid_t pid = getpid();
i32 size = proc_pidpath(pid, memory, binary_path_capacity);
@ -804,13 +804,13 @@ system_get_keyboard_modifiers_sig(){
function
graphics_get_texture_sig(){
u32 result = gl__get_texture(dim, texture_kind);
u32 result = mac_metal_get_texture(dim, texture_kind);
return(result);
}
function
graphics_fill_texture_sig(){
b32 result = gl__fill_texture(texture_kind, texture, p, dim, data);
b32 result = mac_metal_fill_texture(texture_kind, texture, p, dim, data);
return(result);
}

20
platform_mac/mac_4ed_metal.mm
View File

@ -12,6 +12,7 @@ mac_metal_init(NSWindow *window){
[metal_view setAutoresizingMask:NSViewWidthSizable | NSViewHeightSizable];
[metal_view setPaused:YES];
[metal_view setEnableSetNeedsDisplay:NO];
[metal_view setSampleCount:4];
metal_view.device = MTLCreateSystemDefaultDevice();
@ -30,4 +31,23 @@ mac_metal_render(Render_Target* target){
[metal_view draw];
u64 end_time = system_now_time();
printf("Metal Render Time: %fs\n\n", mac_get_time_diff_sec(begin_time, end_time));
}
function u32
mac_metal_get_texture(Vec3_i32 dim, Texture_Kind texture_kind){
u32 result = [metal_renderer get_texture_of_dim:dim
kind:texture_kind];
return result;
}
function b32
mac_metal_fill_texture(Texture_Kind texture_kind, u32 texture, Vec3_i32 p, Vec3_i32 dim, void *data){
b32 result = [metal_renderer fill_texture:texture
kind:texture_kind
pos:p
dim:dim
data:data];
return result;
}