Beginnings of rust emulation
This commit is contained in:
parent
59e14b43e8
commit
40c4561748
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@ -73,6 +73,55 @@ dependencies = [
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"libc",
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]
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[[package]]
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name = "anstream"
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version = "0.6.17"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "23a1e53f0f5d86382dafe1cf314783b2044280f406e7e1506368220ad11b1338"
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dependencies = [
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"anstyle",
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"anstyle-parse",
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"anstyle-query",
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"anstyle-wincon",
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"colorchoice",
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"is_terminal_polyfill",
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"utf8parse",
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]
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[[package]]
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name = "anstyle"
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version = "1.0.10"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "55cc3b69f167a1ef2e161439aa98aed94e6028e5f9a59be9a6ffb47aef1651f9"
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[[package]]
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name = "anstyle-parse"
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version = "0.2.6"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "3b2d16507662817a6a20a9ea92df6652ee4f94f914589377d69f3b21bc5798a9"
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dependencies = [
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"utf8parse",
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]
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[[package]]
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name = "anstyle-query"
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version = "1.1.2"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "79947af37f4177cfead1110013d678905c37501914fba0efea834c3fe9a8d60c"
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dependencies = [
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"windows-sys 0.59.0",
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]
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[[package]]
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name = "anstyle-wincon"
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version = "3.0.6"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "2109dbce0e72be3ec00bed26e6a7479ca384ad226efdd66db8fa2e3a38c83125"
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dependencies = [
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"anstyle",
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"windows-sys 0.59.0",
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]
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[[package]]
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name = "anyhow"
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version = "1.0.92"
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@ -245,6 +294,46 @@ version = "1.0.12"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "1e10e7569f6ca78ef7664d7d651115172d4875c4410c050306bccde856a99a49"
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[[package]]
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name = "clap"
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version = "4.5.20"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "b97f376d85a664d5837dbae44bf546e6477a679ff6610010f17276f686d867e8"
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dependencies = [
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"clap_builder",
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"clap_derive",
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]
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[[package]]
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name = "clap_builder"
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version = "4.5.20"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "19bc80abd44e4bed93ca373a0704ccbd1b710dc5749406201bb018272808dc54"
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dependencies = [
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"anstream",
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"anstyle",
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"clap_lex",
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"strsim",
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]
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[[package]]
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name = "clap_derive"
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version = "4.5.18"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "4ac6a0c7b1a9e9a5186361f67dfa1b88213572f427fb9ab038efb2bd8c582dab"
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dependencies = [
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"heck",
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"proc-macro2",
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"quote",
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"syn 2.0.87",
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]
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[[package]]
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name = "clap_lex"
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version = "0.7.2"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "1462739cb27611015575c0c11df5df7601141071f07518d56fcc1be504cbec97"
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[[package]]
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name = "codespan-reporting"
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version = "0.11.1"
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@ -255,6 +344,12 @@ dependencies = [
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"unicode-width",
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]
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[[package]]
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name = "colorchoice"
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version = "1.0.3"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "5b63caa9aa9397e2d9480a9b13673856c78d8ac123288526c37d7839f2a86990"
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[[package]]
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name = "com"
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version = "0.6.0"
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@ -583,6 +678,12 @@ dependencies = [
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"winapi",
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]
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[[package]]
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name = "heck"
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version = "0.5.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "2304e00983f87ffb38b55b444b5e3b60a884b5d30c0fca7d82fe33449bbe55ea"
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[[package]]
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name = "hermit-abi"
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version = "0.4.0"
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@ -652,6 +753,12 @@ dependencies = [
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"hashbrown 0.15.0",
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]
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[[package]]
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name = "is_terminal_polyfill"
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version = "1.70.1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "7943c866cc5cd64cbc25b2e01621d07fa8eb2a1a23160ee81ce38704e97b8ecf"
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[[package]]
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name = "jni"
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version = "0.21.1"
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@ -1383,6 +1490,7 @@ version = "0.1.0"
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dependencies = [
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"anyhow",
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"cc",
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"clap",
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"imgui",
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"imgui-wgpu",
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"imgui-winit-support",
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@ -1470,6 +1578,12 @@ version = "0.1.1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "6637bab7722d379c8b41ba849228d680cc12d0a45ba1fa2b48f2a30577a06731"
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[[package]]
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name = "strsim"
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version = "0.11.1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "7da8b5736845d9f2fcb837ea5d9e2628564b3b043a70948a3f0b778838c5fb4f"
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[[package]]
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name = "syn"
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version = "1.0.109"
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@ -1609,6 +1723,12 @@ version = "0.2.6"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "ebc1c04c71510c7f702b52b7c350734c9ff1295c464a03335b00bb84fc54f853"
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[[package]]
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name = "utf8parse"
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version = "0.2.2"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "06abde3611657adf66d383f00b093d7faecc7fa57071cce2578660c9f1010821"
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[[package]]
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name = "version_check"
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version = "0.9.5"
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@ -5,6 +5,7 @@ edition = "2021"
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[dependencies]
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anyhow = "1"
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clap = { version = "4", features = ["derive"] }
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imgui = "0.12"
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imgui-wgpu = { git = "https://github.com/Yatekii/imgui-wgpu-rs", rev = "2edd348" }
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imgui-winit-support = "0.13"
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@ -13,4 +14,7 @@ wgpu = "22.1"
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winit = "0.30"
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[build-dependencies]
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cc = "1"
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cc = "1"
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[profile.release]
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lto = "thin"
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3
build.rs
3
build.rs
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@ -1,9 +1,10 @@
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use std::path::Path;
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fn main() {
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println!("cargo::rerun-if-changed=shrooms-vb-core");
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cc::Build::new()
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.include(Path::new("shrooms-vb-core/core"))
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.opt_level(3)
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.opt_level(2)
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.flag_if_supported("-flto")
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.flag_if_supported("-fno-strict-aliasing")
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.file(Path::new("shrooms-vb-core/core/vb.c"))
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@ -0,0 +1,49 @@
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// Vertex shader
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struct VertexOutput {
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@builtin(position) clip_position: vec4<f32>,
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@location(0) tex_coords: vec2<f32>,
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};
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@vertex
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fn vs_main(
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@builtin(vertex_index) in_vertex_index: u32,
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) -> VertexOutput {
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var out: VertexOutput;
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var x: f32;
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var y: f32;
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switch in_vertex_index {
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case 0u, 3u: {
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x = -1.0;
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y = 1.0;
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}
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case 1u: {
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x = -1.0;
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y = -1.0;
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}
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case 2u, 4u: {
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x = 1.0;
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y = -1.0;
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}
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default: {
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x = 1.0;
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y = 1.0;
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}
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}
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out.clip_position = vec4<f32>(x, y, 0.0, 1.0);
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out.tex_coords = vec2<f32>((x + 1.0) / 2.0, (1.0 - y) / 2.0);
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return out;
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}
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// Fragment shader
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@group(0) @binding(0)
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var u_textures: binding_array<texture_2d<f32>>;
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@group(0) @binding(1)
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var u_sampler: sampler;
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@fragment
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fn fs_main(in: VertexOutput) -> @location(0) vec4<f32> {
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return textureSample(u_textures[0], u_sampler, in.tex_coords);
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// return vec4<f32>(0.3, 0.2, 0.1, 1.0);
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}
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@ -0,0 +1,450 @@
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use imgui::*;
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use imgui_wgpu::{Renderer, RendererConfig};
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use imgui_winit_support::WinitPlatform;
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use pollster::block_on;
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use std::{num::NonZero, sync::Arc, time::Instant};
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use winit::{
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application::ApplicationHandler,
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dpi::LogicalSize,
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event::{ElementState, Event, WindowEvent},
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event_loop::ActiveEventLoop,
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keyboard::Key,
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platform::windows::{CornerPreference, WindowAttributesExtWindows},
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window::Window,
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};
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use crate::{
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emulator::{EmulatorClient, EmulatorCommand},
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renderer::GameRenderer,
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};
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struct ImguiState {
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context: imgui::Context,
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platform: WinitPlatform,
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renderer: Renderer,
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clear_color: wgpu::Color,
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last_frame: Instant,
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last_cursor: Option<MouseCursor>,
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}
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struct AppWindow {
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device: wgpu::Device,
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queue: Arc<wgpu::Queue>,
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window: Arc<Window>,
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surface_desc: wgpu::SurfaceConfiguration,
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surface: wgpu::Surface<'static>,
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hidpi_factor: f64,
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pipeline: wgpu::RenderPipeline,
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bind_group: wgpu::BindGroup,
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imgui: Option<ImguiState>,
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}
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impl AppWindow {
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fn setup_gpu(event_loop: &ActiveEventLoop, client: &EmulatorClient) -> Self {
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let instance = wgpu::Instance::new(wgpu::InstanceDescriptor {
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backends: wgpu::Backends::PRIMARY,
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..Default::default()
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});
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let window = {
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let size = LogicalSize::new(384, 244);
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let attributes = Window::default_attributes()
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.with_inner_size(size)
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.with_title("Shrooms VB")
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.with_corner_preference(CornerPreference::DoNotRound);
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Arc::new(event_loop.create_window(attributes).unwrap())
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};
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let size = window.inner_size();
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let hidpi_factor = window.scale_factor();
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let surface = instance.create_surface(window.clone()).unwrap();
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let adapter = block_on(instance.request_adapter(&wgpu::RequestAdapterOptions {
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power_preference: wgpu::PowerPreference::HighPerformance,
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compatible_surface: Some(&surface),
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force_fallback_adapter: false,
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}))
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.unwrap();
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let (device, queue) = block_on(adapter.request_device(
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&wgpu::DeviceDescriptor {
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required_features: wgpu::Features::TEXTURE_BINDING_ARRAY,
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..wgpu::DeviceDescriptor::default()
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},
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None,
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))
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.unwrap();
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let queue = Arc::new(queue);
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let eyes = [
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Arc::new(GameRenderer::create_texture(&device, "left eye")),
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Arc::new(GameRenderer::create_texture(&device, "right eye")),
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];
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client.send_command(EmulatorCommand::SetRenderer(GameRenderer {
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queue: queue.clone(),
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eyes: eyes.clone(),
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}));
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let eyes = [
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eyes[0].create_view(&wgpu::TextureViewDescriptor::default()),
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eyes[1].create_view(&wgpu::TextureViewDescriptor::default()),
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];
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let sampler = device.create_sampler(&wgpu::SamplerDescriptor::default());
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let texture_bind_group_layout =
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device.create_bind_group_layout(&wgpu::BindGroupLayoutDescriptor {
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label: Some("texture bind group layout"),
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entries: &[
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wgpu::BindGroupLayoutEntry {
|
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binding: 0,
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visibility: wgpu::ShaderStages::FRAGMENT,
|
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ty: wgpu::BindingType::Texture {
|
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sample_type: wgpu::TextureSampleType::Float { filterable: true },
|
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view_dimension: wgpu::TextureViewDimension::D2,
|
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multisampled: false,
|
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},
|
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count: NonZero::new(2),
|
||||
},
|
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wgpu::BindGroupLayoutEntry {
|
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binding: 1,
|
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visibility: wgpu::ShaderStages::FRAGMENT,
|
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ty: wgpu::BindingType::Sampler(wgpu::SamplerBindingType::Filtering),
|
||||
count: None,
|
||||
},
|
||||
],
|
||||
});
|
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let bind_group = device.create_bind_group(&wgpu::BindGroupDescriptor {
|
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label: Some("bind group"),
|
||||
layout: &texture_bind_group_layout,
|
||||
entries: &[
|
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wgpu::BindGroupEntry {
|
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binding: 0,
|
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resource: wgpu::BindingResource::TextureViewArray(&[&eyes[0], &eyes[1]]),
|
||||
},
|
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wgpu::BindGroupEntry {
|
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binding: 1,
|
||||
resource: wgpu::BindingResource::Sampler(&sampler),
|
||||
},
|
||||
],
|
||||
});
|
||||
|
||||
// Set up swap chain
|
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let surface_desc = wgpu::SurfaceConfiguration {
|
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usage: wgpu::TextureUsages::RENDER_ATTACHMENT,
|
||||
format: wgpu::TextureFormat::Bgra8UnormSrgb,
|
||||
width: size.width,
|
||||
height: size.height,
|
||||
present_mode: wgpu::PresentMode::Fifo,
|
||||
desired_maximum_frame_latency: 2,
|
||||
alpha_mode: wgpu::CompositeAlphaMode::Auto,
|
||||
view_formats: vec![wgpu::TextureFormat::Bgra8Unorm],
|
||||
};
|
||||
|
||||
surface.configure(&device, &surface_desc);
|
||||
|
||||
let shader = device.create_shader_module(wgpu::include_wgsl!("anaglyph.wgsl"));
|
||||
let render_pipeline_layout =
|
||||
device.create_pipeline_layout(&wgpu::PipelineLayoutDescriptor {
|
||||
label: Some("render pipeline layout"),
|
||||
bind_group_layouts: &[&texture_bind_group_layout],
|
||||
push_constant_ranges: &[],
|
||||
});
|
||||
let render_pipeline = device.create_render_pipeline(&wgpu::RenderPipelineDescriptor {
|
||||
label: Some("render pipeline"),
|
||||
layout: Some(&render_pipeline_layout),
|
||||
vertex: wgpu::VertexState {
|
||||
module: &shader,
|
||||
entry_point: "vs_main",
|
||||
buffers: &[],
|
||||
compilation_options: wgpu::PipelineCompilationOptions::default(),
|
||||
},
|
||||
fragment: Some(wgpu::FragmentState {
|
||||
module: &shader,
|
||||
entry_point: "fs_main",
|
||||
targets: &[Some(wgpu::ColorTargetState {
|
||||
format: wgpu::TextureFormat::Bgra8UnormSrgb,
|
||||
blend: Some(wgpu::BlendState::REPLACE),
|
||||
write_mask: wgpu::ColorWrites::ALL,
|
||||
})],
|
||||
compilation_options: wgpu::PipelineCompilationOptions::default(),
|
||||
}),
|
||||
primitive: wgpu::PrimitiveState {
|
||||
topology: wgpu::PrimitiveTopology::TriangleList,
|
||||
strip_index_format: None,
|
||||
front_face: wgpu::FrontFace::Ccw,
|
||||
cull_mode: Some(wgpu::Face::Back),
|
||||
polygon_mode: wgpu::PolygonMode::Fill,
|
||||
unclipped_depth: false,
|
||||
conservative: false,
|
||||
},
|
||||
depth_stencil: None,
|
||||
multisample: wgpu::MultisampleState {
|
||||
count: 1,
|
||||
mask: !0,
|
||||
alpha_to_coverage_enabled: false,
|
||||
},
|
||||
multiview: None,
|
||||
cache: None,
|
||||
});
|
||||
|
||||
let imgui = None;
|
||||
Self {
|
||||
device,
|
||||
queue,
|
||||
window,
|
||||
surface_desc,
|
||||
surface,
|
||||
hidpi_factor,
|
||||
pipeline: render_pipeline,
|
||||
bind_group,
|
||||
imgui,
|
||||
}
|
||||
}
|
||||
|
||||
fn setup_imgui(&mut self) {
|
||||
let mut context = imgui::Context::create();
|
||||
let mut platform = imgui_winit_support::WinitPlatform::new(&mut context);
|
||||
platform.attach_window(
|
||||
context.io_mut(),
|
||||
&self.window,
|
||||
imgui_winit_support::HiDpiMode::Default,
|
||||
);
|
||||
context.set_ini_filename(None);
|
||||
|
||||
let font_size = (13.0 * self.hidpi_factor) as f32;
|
||||
context.io_mut().font_global_scale = (1.0 / self.hidpi_factor) as f32;
|
||||
|
||||
context.fonts().add_font(&[FontSource::DefaultFontData {
|
||||
config: Some(imgui::FontConfig {
|
||||
oversample_h: 1,
|
||||
pixel_snap_h: true,
|
||||
size_pixels: font_size,
|
||||
..Default::default()
|
||||
}),
|
||||
}]);
|
||||
|
||||
//
|
||||
// Set up dear imgui wgpu renderer
|
||||
//
|
||||
let clear_color = wgpu::Color::BLACK;
|
||||
|
||||
let renderer_config = RendererConfig {
|
||||
texture_format: self.surface_desc.format,
|
||||
..Default::default()
|
||||
};
|
||||
|
||||
let renderer = Renderer::new(&mut context, &self.device, &self.queue, renderer_config);
|
||||
|
||||
let last_frame = Instant::now();
|
||||
let last_cursor = None;
|
||||
|
||||
self.imgui = Some(ImguiState {
|
||||
context,
|
||||
platform,
|
||||
renderer,
|
||||
clear_color,
|
||||
last_frame,
|
||||
last_cursor,
|
||||
})
|
||||
}
|
||||
|
||||
fn new(event_loop: &ActiveEventLoop, client: &EmulatorClient) -> Self {
|
||||
let mut window = Self::setup_gpu(event_loop, client);
|
||||
window.setup_imgui();
|
||||
window
|
||||
}
|
||||
}
|
||||
|
||||
pub struct App {
|
||||
window: Option<AppWindow>,
|
||||
client: EmulatorClient,
|
||||
}
|
||||
|
||||
impl App {
|
||||
pub fn new(client: EmulatorClient) -> Self {
|
||||
Self {
|
||||
window: None,
|
||||
client,
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl ApplicationHandler for App {
|
||||
fn resumed(&mut self, event_loop: &ActiveEventLoop) {
|
||||
self.window = Some(AppWindow::new(event_loop, &self.client));
|
||||
}
|
||||
|
||||
fn window_event(
|
||||
&mut self,
|
||||
event_loop: &ActiveEventLoop,
|
||||
window_id: winit::window::WindowId,
|
||||
event: WindowEvent,
|
||||
) {
|
||||
let window = self.window.as_mut().unwrap();
|
||||
let imgui = window.imgui.as_mut().unwrap();
|
||||
|
||||
match &event {
|
||||
WindowEvent::Resized(size) => {
|
||||
window.surface_desc = wgpu::SurfaceConfiguration {
|
||||
usage: wgpu::TextureUsages::RENDER_ATTACHMENT,
|
||||
format: wgpu::TextureFormat::Bgra8UnormSrgb,
|
||||
width: size.width,
|
||||
height: size.height,
|
||||
present_mode: wgpu::PresentMode::Fifo,
|
||||
desired_maximum_frame_latency: 2,
|
||||
alpha_mode: wgpu::CompositeAlphaMode::Auto,
|
||||
view_formats: vec![wgpu::TextureFormat::Bgra8Unorm],
|
||||
};
|
||||
|
||||
window
|
||||
.surface
|
||||
.configure(&window.device, &window.surface_desc);
|
||||
}
|
||||
WindowEvent::CloseRequested => event_loop.exit(),
|
||||
WindowEvent::KeyboardInput { event, .. } => {
|
||||
if let Key::Character("s") = event.logical_key.as_ref() {
|
||||
match event.state {
|
||||
ElementState::Pressed => {
|
||||
self.client.send_command(EmulatorCommand::PressStart)
|
||||
}
|
||||
ElementState::Released => {
|
||||
self.client.send_command(EmulatorCommand::ReleaseStart)
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
WindowEvent::RedrawRequested => {
|
||||
let now = Instant::now();
|
||||
imgui
|
||||
.context
|
||||
.io_mut()
|
||||
.update_delta_time(now - imgui.last_frame);
|
||||
imgui.last_frame = now;
|
||||
|
||||
let frame = match window.surface.get_current_texture() {
|
||||
Ok(frame) => frame,
|
||||
Err(e) => {
|
||||
eprintln!("dropped frame: {e:?}");
|
||||
return;
|
||||
}
|
||||
};
|
||||
imgui
|
||||
.platform
|
||||
.prepare_frame(imgui.context.io_mut(), &window.window)
|
||||
.expect("Failed to prepare frame");
|
||||
let ui = imgui.context.frame();
|
||||
let mut height = 0.0;
|
||||
ui.main_menu_bar(|| {
|
||||
height = ui.window_size()[1];
|
||||
ui.menu("ROM", || {
|
||||
if ui.menu_item("Open ROM") {
|
||||
println!("clicked");
|
||||
}
|
||||
if ui.menu_item("Quit") {
|
||||
event_loop.exit();
|
||||
}
|
||||
});
|
||||
ui.menu("Emulation", || {
|
||||
if ui.menu_item("Pause") {
|
||||
println!("clicked");
|
||||
}
|
||||
if ui.menu_item("Reset") {
|
||||
println!("clicked");
|
||||
}
|
||||
});
|
||||
});
|
||||
|
||||
let mut encoder: wgpu::CommandEncoder = window
|
||||
.device
|
||||
.create_command_encoder(&wgpu::CommandEncoderDescriptor { label: None });
|
||||
|
||||
if imgui.last_cursor != ui.mouse_cursor() {
|
||||
imgui.last_cursor = ui.mouse_cursor();
|
||||
imgui.platform.prepare_render(ui, &window.window);
|
||||
}
|
||||
|
||||
let view = frame
|
||||
.texture
|
||||
.create_view(&wgpu::TextureViewDescriptor::default());
|
||||
let mut rpass = encoder.begin_render_pass(&wgpu::RenderPassDescriptor {
|
||||
label: None,
|
||||
color_attachments: &[Some(wgpu::RenderPassColorAttachment {
|
||||
view: &view,
|
||||
resolve_target: None,
|
||||
ops: wgpu::Operations {
|
||||
load: wgpu::LoadOp::Clear(imgui.clear_color),
|
||||
store: wgpu::StoreOp::Store,
|
||||
},
|
||||
})],
|
||||
depth_stencil_attachment: None,
|
||||
timestamp_writes: None,
|
||||
occlusion_query_set: None,
|
||||
});
|
||||
|
||||
rpass.set_pipeline(&window.pipeline);
|
||||
let hidpi = window.hidpi_factor as f32;
|
||||
rpass.set_viewport(0.0, height * hidpi, 384.0 * hidpi, 224.0 * hidpi, 0.0, 1.0);
|
||||
rpass.set_bind_group(0, &window.bind_group, &[]);
|
||||
rpass.draw(0..6, 0..1);
|
||||
|
||||
rpass.set_viewport(0.0, 0.0, 384.0 * hidpi, 224.0 * hidpi, 0.0, 1.0);
|
||||
imgui
|
||||
.renderer
|
||||
.render(
|
||||
imgui.context.render(),
|
||||
&window.queue,
|
||||
&window.device,
|
||||
&mut rpass,
|
||||
)
|
||||
.expect("Rendering failed");
|
||||
|
||||
drop(rpass);
|
||||
|
||||
window.queue.submit(Some(encoder.finish()));
|
||||
|
||||
frame.present();
|
||||
}
|
||||
_ => (),
|
||||
}
|
||||
|
||||
imgui.platform.handle_event::<()>(
|
||||
imgui.context.io_mut(),
|
||||
&window.window,
|
||||
&Event::WindowEvent { window_id, event },
|
||||
);
|
||||
}
|
||||
|
||||
fn user_event(&mut self, _event_loop: &ActiveEventLoop, event: ()) {
|
||||
let window = self.window.as_mut().unwrap();
|
||||
let imgui = window.imgui.as_mut().unwrap();
|
||||
imgui.platform.handle_event::<()>(
|
||||
imgui.context.io_mut(),
|
||||
&window.window,
|
||||
&Event::UserEvent(event),
|
||||
);
|
||||
}
|
||||
|
||||
fn device_event(
|
||||
&mut self,
|
||||
_event_loop: &ActiveEventLoop,
|
||||
device_id: winit::event::DeviceId,
|
||||
event: winit::event::DeviceEvent,
|
||||
) {
|
||||
let window = self.window.as_mut().unwrap();
|
||||
let imgui = window.imgui.as_mut().unwrap();
|
||||
imgui.platform.handle_event::<()>(
|
||||
imgui.context.io_mut(),
|
||||
&window.window,
|
||||
&Event::DeviceEvent { device_id, event },
|
||||
);
|
||||
}
|
||||
|
||||
fn about_to_wait(&mut self, _event_loop: &ActiveEventLoop) {
|
||||
let window = self.window.as_mut().unwrap();
|
||||
let imgui = window.imgui.as_mut().unwrap();
|
||||
window.window.request_redraw();
|
||||
imgui.platform.handle_event::<()>(
|
||||
imgui.context.io_mut(),
|
||||
&window.window,
|
||||
&Event::AboutToWait,
|
||||
);
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,93 @@
|
|||
use std::{
|
||||
fs,
|
||||
path::Path,
|
||||
sync::mpsc::{self, TryRecvError},
|
||||
};
|
||||
|
||||
use anyhow::Result;
|
||||
|
||||
use crate::{renderer::GameRenderer, shrooms_vb_core::CoreVB};
|
||||
|
||||
pub struct Emulator {
|
||||
sim: CoreVB,
|
||||
commands: mpsc::Receiver<EmulatorCommand>,
|
||||
renderer: Option<GameRenderer>,
|
||||
}
|
||||
|
||||
impl Emulator {
|
||||
pub fn new() -> (Self, EmulatorClient) {
|
||||
let (sink, source) = mpsc::channel();
|
||||
let emu = Emulator {
|
||||
sim: CoreVB::new(),
|
||||
commands: source,
|
||||
renderer: None,
|
||||
};
|
||||
let queue = EmulatorClient { queue: sink };
|
||||
(emu, queue)
|
||||
}
|
||||
|
||||
pub fn load_rom(&mut self, path: &Path) -> Result<()> {
|
||||
let bytes = fs::read(path)?;
|
||||
self.sim.load_rom(bytes)?;
|
||||
Ok(())
|
||||
}
|
||||
|
||||
pub fn run(&mut self) {
|
||||
let mut eye_contents = [vec![0u8; 384 * 224], vec![0u8; 384 * 224]];
|
||||
loop {
|
||||
self.sim.emulate_frame();
|
||||
if let Some(renderer) = &mut self.renderer {
|
||||
if self.sim.read_pixels(&mut eye_contents) {
|
||||
renderer.render(&eye_contents);
|
||||
}
|
||||
}
|
||||
loop {
|
||||
match self.commands.try_recv() {
|
||||
Ok(command) => self.handle_command(command),
|
||||
Err(TryRecvError::Empty) => {
|
||||
break;
|
||||
}
|
||||
Err(TryRecvError::Disconnected) => {
|
||||
return;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
fn handle_command(&mut self, command: EmulatorCommand) {
|
||||
match command {
|
||||
EmulatorCommand::SetRenderer(renderer) => {
|
||||
self.renderer = Some(renderer);
|
||||
}
|
||||
EmulatorCommand::PressStart => {
|
||||
self.sim.set_keys(0x1003);
|
||||
}
|
||||
EmulatorCommand::ReleaseStart => {
|
||||
self.sim.set_keys(0x0003);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
#[derive(Debug)]
|
||||
pub enum EmulatorCommand {
|
||||
SetRenderer(GameRenderer),
|
||||
PressStart,
|
||||
ReleaseStart,
|
||||
}
|
||||
|
||||
pub struct EmulatorClient {
|
||||
queue: mpsc::Sender<EmulatorCommand>,
|
||||
}
|
||||
|
||||
impl EmulatorClient {
|
||||
pub fn send_command(&self, command: EmulatorCommand) {
|
||||
if let Err(err) = self.queue.send(command) {
|
||||
eprintln!(
|
||||
"could not send command {:?} as emulator is shut down",
|
||||
err.0
|
||||
);
|
||||
}
|
||||
}
|
||||
}
|
||||
341
src/main.rs
341
src/main.rs
|
|
@ -1,325 +1,32 @@
|
|||
use imgui::*;
|
||||
use imgui_wgpu::{Renderer, RendererConfig};
|
||||
use imgui_winit_support::WinitPlatform;
|
||||
use pollster::block_on;
|
||||
use std::{sync::Arc, time::Instant};
|
||||
use winit::{
|
||||
application::ApplicationHandler,
|
||||
dpi::LogicalSize,
|
||||
event::{Event, WindowEvent},
|
||||
event_loop::{ActiveEventLoop, ControlFlow, EventLoop},
|
||||
keyboard::{Key, NamedKey},
|
||||
window::Window,
|
||||
};
|
||||
use std::{path::PathBuf, thread};
|
||||
|
||||
struct ImguiState {
|
||||
context: imgui::Context,
|
||||
platform: WinitPlatform,
|
||||
renderer: Renderer,
|
||||
clear_color: wgpu::Color,
|
||||
last_frame: Instant,
|
||||
last_cursor: Option<MouseCursor>,
|
||||
use anyhow::Result;
|
||||
use app::App;
|
||||
use clap::Parser;
|
||||
use emulator::Emulator;
|
||||
use winit::event_loop::{ControlFlow, EventLoop};
|
||||
|
||||
mod app;
|
||||
mod emulator;
|
||||
mod renderer;
|
||||
mod shrooms_vb_core;
|
||||
|
||||
#[derive(Parser)]
|
||||
struct Args {
|
||||
rom: PathBuf,
|
||||
}
|
||||
|
||||
struct AppWindow {
|
||||
device: wgpu::Device,
|
||||
queue: wgpu::Queue,
|
||||
window: Arc<Window>,
|
||||
surface_desc: wgpu::SurfaceConfiguration,
|
||||
surface: wgpu::Surface<'static>,
|
||||
hidpi_factor: f64,
|
||||
imgui: Option<ImguiState>,
|
||||
}
|
||||
fn main() -> Result<()> {
|
||||
let args = Args::parse();
|
||||
|
||||
#[derive(Default)]
|
||||
struct App {
|
||||
window: Option<AppWindow>,
|
||||
}
|
||||
let (mut emulator, client) = Emulator::new();
|
||||
emulator.load_rom(&args.rom)?;
|
||||
thread::spawn(move || {
|
||||
emulator.run();
|
||||
});
|
||||
|
||||
impl AppWindow {
|
||||
fn setup_gpu(event_loop: &ActiveEventLoop) -> Self {
|
||||
let instance = wgpu::Instance::new(wgpu::InstanceDescriptor {
|
||||
backends: wgpu::Backends::PRIMARY,
|
||||
..Default::default()
|
||||
});
|
||||
|
||||
let window = {
|
||||
let size = LogicalSize::new(384, 244);
|
||||
|
||||
let attributes = Window::default_attributes()
|
||||
.with_inner_size(size)
|
||||
.with_title("Shrooms VB");
|
||||
Arc::new(event_loop.create_window(attributes).unwrap())
|
||||
};
|
||||
|
||||
let size = window.inner_size();
|
||||
let hidpi_factor = window.scale_factor();
|
||||
let surface = instance.create_surface(window.clone()).unwrap();
|
||||
|
||||
let adapter = block_on(instance.request_adapter(&wgpu::RequestAdapterOptions {
|
||||
power_preference: wgpu::PowerPreference::HighPerformance,
|
||||
compatible_surface: Some(&surface),
|
||||
force_fallback_adapter: false,
|
||||
}))
|
||||
.unwrap();
|
||||
|
||||
let (device, queue) =
|
||||
block_on(adapter.request_device(&wgpu::DeviceDescriptor::default(), None)).unwrap();
|
||||
|
||||
// Set up swap chain
|
||||
let surface_desc = wgpu::SurfaceConfiguration {
|
||||
usage: wgpu::TextureUsages::RENDER_ATTACHMENT,
|
||||
format: wgpu::TextureFormat::Bgra8UnormSrgb,
|
||||
width: size.width,
|
||||
height: size.height,
|
||||
present_mode: wgpu::PresentMode::Fifo,
|
||||
desired_maximum_frame_latency: 2,
|
||||
alpha_mode: wgpu::CompositeAlphaMode::Auto,
|
||||
view_formats: vec![wgpu::TextureFormat::Bgra8Unorm],
|
||||
};
|
||||
|
||||
surface.configure(&device, &surface_desc);
|
||||
|
||||
let imgui = None;
|
||||
Self {
|
||||
device,
|
||||
queue,
|
||||
window,
|
||||
surface_desc,
|
||||
surface,
|
||||
hidpi_factor,
|
||||
imgui,
|
||||
}
|
||||
}
|
||||
|
||||
fn setup_imgui(&mut self) {
|
||||
let mut context = imgui::Context::create();
|
||||
let mut platform = imgui_winit_support::WinitPlatform::new(&mut context);
|
||||
platform.attach_window(
|
||||
context.io_mut(),
|
||||
&self.window,
|
||||
imgui_winit_support::HiDpiMode::Default,
|
||||
);
|
||||
context.set_ini_filename(None);
|
||||
|
||||
let font_size = (13.0 * self.hidpi_factor) as f32;
|
||||
context.io_mut().font_global_scale = (1.0 / self.hidpi_factor) as f32;
|
||||
|
||||
context.fonts().add_font(&[FontSource::DefaultFontData {
|
||||
config: Some(imgui::FontConfig {
|
||||
oversample_h: 1,
|
||||
pixel_snap_h: true,
|
||||
size_pixels: font_size,
|
||||
..Default::default()
|
||||
}),
|
||||
}]);
|
||||
|
||||
//
|
||||
// Set up dear imgui wgpu renderer
|
||||
//
|
||||
let clear_color = wgpu::Color::BLACK;
|
||||
|
||||
let renderer_config = RendererConfig {
|
||||
texture_format: self.surface_desc.format,
|
||||
..Default::default()
|
||||
};
|
||||
|
||||
let renderer = Renderer::new(&mut context, &self.device, &self.queue, renderer_config);
|
||||
let last_frame = Instant::now();
|
||||
let last_cursor = None;
|
||||
|
||||
self.imgui = Some(ImguiState {
|
||||
context,
|
||||
platform,
|
||||
renderer,
|
||||
clear_color,
|
||||
last_frame,
|
||||
last_cursor,
|
||||
})
|
||||
}
|
||||
|
||||
fn new(event_loop: &ActiveEventLoop) -> Self {
|
||||
let mut window = Self::setup_gpu(event_loop);
|
||||
window.setup_imgui();
|
||||
window
|
||||
}
|
||||
}
|
||||
|
||||
impl ApplicationHandler for App {
|
||||
fn resumed(&mut self, event_loop: &ActiveEventLoop) {
|
||||
self.window = Some(AppWindow::new(event_loop));
|
||||
}
|
||||
|
||||
fn window_event(
|
||||
&mut self,
|
||||
event_loop: &ActiveEventLoop,
|
||||
window_id: winit::window::WindowId,
|
||||
event: WindowEvent,
|
||||
) {
|
||||
let window = self.window.as_mut().unwrap();
|
||||
let imgui = window.imgui.as_mut().unwrap();
|
||||
let mut quit = false;
|
||||
|
||||
match &event {
|
||||
WindowEvent::Resized(size) => {
|
||||
window.surface_desc = wgpu::SurfaceConfiguration {
|
||||
usage: wgpu::TextureUsages::RENDER_ATTACHMENT,
|
||||
format: wgpu::TextureFormat::Bgra8UnormSrgb,
|
||||
width: size.width,
|
||||
height: size.height,
|
||||
present_mode: wgpu::PresentMode::Fifo,
|
||||
desired_maximum_frame_latency: 2,
|
||||
alpha_mode: wgpu::CompositeAlphaMode::Auto,
|
||||
view_formats: vec![wgpu::TextureFormat::Bgra8Unorm],
|
||||
};
|
||||
|
||||
window
|
||||
.surface
|
||||
.configure(&window.device, &window.surface_desc);
|
||||
}
|
||||
WindowEvent::CloseRequested => event_loop.exit(),
|
||||
WindowEvent::KeyboardInput { event, .. } => {
|
||||
if let Key::Named(NamedKey::Escape) = event.logical_key {
|
||||
if event.state.is_pressed() {
|
||||
quit = true;
|
||||
}
|
||||
}
|
||||
}
|
||||
WindowEvent::RedrawRequested => {
|
||||
let now = Instant::now();
|
||||
imgui
|
||||
.context
|
||||
.io_mut()
|
||||
.update_delta_time(now - imgui.last_frame);
|
||||
imgui.last_frame = now;
|
||||
|
||||
let frame = match window.surface.get_current_texture() {
|
||||
Ok(frame) => frame,
|
||||
Err(e) => {
|
||||
eprintln!("dropped frame: {e:?}");
|
||||
return;
|
||||
}
|
||||
};
|
||||
imgui
|
||||
.platform
|
||||
.prepare_frame(imgui.context.io_mut(), &window.window)
|
||||
.expect("Failed to prepare frame");
|
||||
let ui = imgui.context.frame();
|
||||
ui.main_menu_bar(|| {
|
||||
ui.menu("ROM", || {
|
||||
if ui.menu_item("Open ROM") {
|
||||
println!("clicked");
|
||||
}
|
||||
if ui.menu_item("Quit") {
|
||||
event_loop.exit();
|
||||
}
|
||||
});
|
||||
ui.menu("Emulation", || {
|
||||
if ui.menu_item("Pause") {
|
||||
println!("clicked");
|
||||
}
|
||||
if ui.menu_item("Reset") {
|
||||
println!("clicked");
|
||||
}
|
||||
});
|
||||
});
|
||||
|
||||
let mut encoder: wgpu::CommandEncoder = window
|
||||
.device
|
||||
.create_command_encoder(&wgpu::CommandEncoderDescriptor { label: None });
|
||||
|
||||
if imgui.last_cursor != ui.mouse_cursor() {
|
||||
imgui.last_cursor = ui.mouse_cursor();
|
||||
imgui.platform.prepare_render(ui, &window.window);
|
||||
}
|
||||
|
||||
let view = frame
|
||||
.texture
|
||||
.create_view(&wgpu::TextureViewDescriptor::default());
|
||||
let mut rpass = encoder.begin_render_pass(&wgpu::RenderPassDescriptor {
|
||||
label: None,
|
||||
color_attachments: &[Some(wgpu::RenderPassColorAttachment {
|
||||
view: &view,
|
||||
resolve_target: None,
|
||||
ops: wgpu::Operations {
|
||||
load: wgpu::LoadOp::Clear(imgui.clear_color),
|
||||
store: wgpu::StoreOp::Store,
|
||||
},
|
||||
})],
|
||||
depth_stencil_attachment: None,
|
||||
timestamp_writes: None,
|
||||
occlusion_query_set: None,
|
||||
});
|
||||
|
||||
imgui
|
||||
.renderer
|
||||
.render(
|
||||
imgui.context.render(),
|
||||
&window.queue,
|
||||
&window.device,
|
||||
&mut rpass,
|
||||
)
|
||||
.expect("Rendering failed");
|
||||
|
||||
drop(rpass);
|
||||
|
||||
window.queue.submit(Some(encoder.finish()));
|
||||
|
||||
frame.present();
|
||||
}
|
||||
_ => (),
|
||||
}
|
||||
|
||||
imgui.platform.handle_event::<()>(
|
||||
imgui.context.io_mut(),
|
||||
&window.window,
|
||||
&Event::WindowEvent { window_id, event },
|
||||
);
|
||||
|
||||
if quit {
|
||||
self.window.take();
|
||||
}
|
||||
}
|
||||
|
||||
fn user_event(&mut self, _event_loop: &ActiveEventLoop, event: ()) {
|
||||
let window = self.window.as_mut().unwrap();
|
||||
let imgui = window.imgui.as_mut().unwrap();
|
||||
imgui.platform.handle_event::<()>(
|
||||
imgui.context.io_mut(),
|
||||
&window.window,
|
||||
&Event::UserEvent(event),
|
||||
);
|
||||
}
|
||||
|
||||
fn device_event(
|
||||
&mut self,
|
||||
_event_loop: &ActiveEventLoop,
|
||||
device_id: winit::event::DeviceId,
|
||||
event: winit::event::DeviceEvent,
|
||||
) {
|
||||
let window = self.window.as_mut().unwrap();
|
||||
let imgui = window.imgui.as_mut().unwrap();
|
||||
imgui.platform.handle_event::<()>(
|
||||
imgui.context.io_mut(),
|
||||
&window.window,
|
||||
&Event::DeviceEvent { device_id, event },
|
||||
);
|
||||
}
|
||||
|
||||
fn about_to_wait(&mut self, _event_loop: &ActiveEventLoop) {
|
||||
let window = self.window.as_mut().unwrap();
|
||||
let imgui = window.imgui.as_mut().unwrap();
|
||||
window.window.request_redraw();
|
||||
imgui.platform.handle_event::<()>(
|
||||
imgui.context.io_mut(),
|
||||
&window.window,
|
||||
&Event::AboutToWait,
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
fn main() {
|
||||
let event_loop = EventLoop::new().unwrap();
|
||||
event_loop.set_control_flow(ControlFlow::Poll);
|
||||
event_loop.run_app(&mut App::default()).unwrap();
|
||||
event_loop.run_app(&mut App::new(client))?;
|
||||
Ok(())
|
||||
}
|
||||
|
|
|
|||
|
|
@ -0,0 +1,58 @@
|
|||
use std::sync::Arc;
|
||||
|
||||
use wgpu::{
|
||||
Extent3d, ImageCopyTexture, ImageDataLayout, Origin3d, Queue, Texture, TextureDescriptor,
|
||||
TextureFormat, TextureUsages,
|
||||
};
|
||||
|
||||
#[derive(Debug)]
|
||||
pub struct GameRenderer {
|
||||
pub queue: Arc<Queue>,
|
||||
pub eyes: [Arc<Texture>; 2],
|
||||
}
|
||||
|
||||
impl GameRenderer {
|
||||
pub fn render(&self, buffers: &[Vec<u8>; 2]) {
|
||||
for (texture, buffer) in self.eyes.iter().zip(buffers) {
|
||||
self.update_texture(texture, buffer);
|
||||
}
|
||||
}
|
||||
fn update_texture(&self, texture: &Texture, buffer: &[u8]) {
|
||||
let texture = ImageCopyTexture {
|
||||
texture,
|
||||
mip_level: 0,
|
||||
origin: Origin3d::ZERO,
|
||||
aspect: wgpu::TextureAspect::All,
|
||||
};
|
||||
let size = Extent3d {
|
||||
width: 384,
|
||||
height: 224,
|
||||
depth_or_array_layers: 1,
|
||||
};
|
||||
let data_layout = ImageDataLayout {
|
||||
offset: 0,
|
||||
bytes_per_row: Some(384),
|
||||
rows_per_image: Some(224),
|
||||
};
|
||||
self.queue.write_texture(texture, buffer, data_layout, size);
|
||||
}
|
||||
pub fn create_texture(device: &wgpu::Device, name: &str) -> Texture {
|
||||
let desc = TextureDescriptor {
|
||||
label: Some(name),
|
||||
size: Extent3d {
|
||||
width: 384,
|
||||
height: 224,
|
||||
depth_or_array_layers: 1,
|
||||
},
|
||||
mip_level_count: 1,
|
||||
sample_count: 1,
|
||||
dimension: wgpu::TextureDimension::D2,
|
||||
format: TextureFormat::R8Unorm,
|
||||
usage: TextureUsages::COPY_SRC
|
||||
| TextureUsages::COPY_DST
|
||||
| TextureUsages::TEXTURE_BINDING,
|
||||
view_formats: &[TextureFormat::R8Unorm],
|
||||
};
|
||||
device.create_texture(&desc)
|
||||
}
|
||||
}
|
||||
|
|
@ -1,37 +1,159 @@
|
|||
use std::{ffi::c_void, ptr};
|
||||
|
||||
use anyhow::{anyhow, Result};
|
||||
|
||||
#[repr(C)]
|
||||
struct VB { _data: [u8; 0] }
|
||||
struct VB {
|
||||
_data: [u8; 0],
|
||||
}
|
||||
|
||||
#[allow(non_camel_case_types)]
|
||||
type c_int = i32;
|
||||
type OnFrame = extern "C" fn(sim: *mut VB) -> c_int;
|
||||
|
||||
#[link(name = "vb")]
|
||||
extern "C" {
|
||||
#[link_name = "vbEmulate"]
|
||||
fn vb_emulate(sim: *mut VB, cycles: *mut u32) -> c_int;
|
||||
#[link_name = "vbGetCartROM"]
|
||||
fn vb_get_cart_rom(sim: *mut VB, size: *mut u32) -> *mut c_void;
|
||||
#[link_name = "vbGetPixels"]
|
||||
fn vb_get_pixels(
|
||||
sim: *mut VB,
|
||||
left: *mut c_void,
|
||||
left_stride_x: c_int,
|
||||
left_stride_y: c_int,
|
||||
right: *mut c_void,
|
||||
right_stride_x: c_int,
|
||||
right_stride_y: c_int,
|
||||
);
|
||||
#[link_name = "vbGetUserData"]
|
||||
fn vb_get_user_data(sim: *mut VB) -> *mut c_void;
|
||||
#[link_name = "vbInit"]
|
||||
fn vb_init(sim: *mut VB) -> *mut VB;
|
||||
|
||||
#[link_name = "vbReset"]
|
||||
fn vb_reset(sim: *mut VB);
|
||||
#[link_name = "vbSetCartROM"]
|
||||
fn vb_set_cart_rom(sim: *mut VB, rom: *mut c_void, size: u32) -> c_int;
|
||||
#[link_name = "vbSetKeys"]
|
||||
fn vb_set_keys(sim: *mut VB, keys: u16) -> u16;
|
||||
#[link_name = "vbSetFrameCallback"]
|
||||
fn vb_set_frame_callback(sim: *mut VB, on_frame: OnFrame);
|
||||
#[link_name = "vbSetUserData"]
|
||||
fn vb_set_user_data(sim: *mut VB, tag: *mut c_void);
|
||||
#[link_name = "vbSizeOf"]
|
||||
fn vb_size_of() -> usize;
|
||||
}
|
||||
|
||||
#[link_name = "vbGetKeys"]
|
||||
fn vb_get_keys(sim: *mut VB) -> u16;
|
||||
extern "C" fn on_frame(sim: *mut VB) -> i32 {
|
||||
// SAFETY: the *mut VB owns its userdata.
|
||||
// There is no way for the userdata to be null or otherwise invalid.
|
||||
let data: &mut VBState = unsafe { &mut *vb_get_user_data(sim).cast() };
|
||||
data.frame_seen = true;
|
||||
1
|
||||
}
|
||||
|
||||
struct VBState {
|
||||
frame_seen: bool,
|
||||
}
|
||||
|
||||
pub struct CoreVB {
|
||||
sim: *mut VB,
|
||||
_data: Box<[u8]>,
|
||||
}
|
||||
|
||||
// SAFETY: the memory pointed to by sim is valid
|
||||
unsafe impl Send for CoreVB {}
|
||||
|
||||
impl CoreVB {
|
||||
pub fn new() -> Self {
|
||||
// init the VB instance itself
|
||||
let size = unsafe { vb_size_of() };
|
||||
let mut data = vec![0; size].into_boxed_slice();
|
||||
let sim = data.as_mut_ptr() as *mut VB;
|
||||
// allocate a vec of u64 so that this memory is 8-byte aligned
|
||||
let memory = vec![0u64; size.div_ceil(4)];
|
||||
let sim: *mut VB = Box::into_raw(memory.into_boxed_slice()).cast();
|
||||
unsafe { vb_init(sim) };
|
||||
CoreVB {
|
||||
sim,
|
||||
_data: data
|
||||
unsafe { vb_reset(sim) };
|
||||
|
||||
// set up userdata
|
||||
let state = VBState { frame_seen: false };
|
||||
unsafe { vb_set_user_data(sim, Box::into_raw(Box::new(state)).cast()) };
|
||||
unsafe { vb_set_frame_callback(sim, on_frame) };
|
||||
|
||||
CoreVB { sim }
|
||||
}
|
||||
|
||||
pub fn load_rom(&mut self, rom: Vec<u8>) -> Result<()> {
|
||||
self.unload_rom();
|
||||
|
||||
let size = rom.len() as u32;
|
||||
let rom = Box::into_raw(rom.into_boxed_slice()).cast();
|
||||
let status = unsafe { vb_set_cart_rom(self.sim, rom, size) };
|
||||
if status == 0 {
|
||||
Ok(())
|
||||
} else {
|
||||
let _: Vec<u8> =
|
||||
unsafe { Vec::from_raw_parts(rom.cast(), size as usize, size as usize) };
|
||||
Err(anyhow!("Invalid ROM size of {} bytes", size))
|
||||
}
|
||||
}
|
||||
|
||||
pub fn keys(&self) -> u16 {
|
||||
unsafe { vb_get_keys(self.sim) }
|
||||
fn unload_rom(&mut self) -> Option<Vec<u8>> {
|
||||
let mut size = 0;
|
||||
let rom = unsafe { vb_get_cart_rom(self.sim, &mut size) };
|
||||
if rom.is_null() {
|
||||
return None;
|
||||
}
|
||||
unsafe { vb_set_cart_rom(self.sim, ptr::null_mut(), 0) };
|
||||
let vec = unsafe { Vec::from_raw_parts(rom.cast(), size as usize, size as usize) };
|
||||
Some(vec)
|
||||
}
|
||||
}
|
||||
|
||||
pub fn emulate_frame(&mut self) {
|
||||
let mut cycles = 20_000_000;
|
||||
unsafe { vb_emulate(self.sim, &mut cycles) };
|
||||
}
|
||||
|
||||
pub fn read_pixels(&mut self, buffers: &mut [Vec<u8>; 2]) -> bool {
|
||||
// SAFETY: the *mut VB owns its userdata.
|
||||
// There is no way for the userdata to be null or otherwise invalid.
|
||||
let data: &mut VBState = unsafe { &mut *vb_get_user_data(self.sim).cast() };
|
||||
if !data.frame_seen {
|
||||
return false;
|
||||
}
|
||||
data.frame_seen = false;
|
||||
|
||||
assert_eq!(buffers[0].len(), 384 * 224);
|
||||
assert_eq!(buffers[1].len(), 384 * 224);
|
||||
unsafe {
|
||||
vb_get_pixels(
|
||||
self.sim,
|
||||
buffers[0].as_mut_ptr().cast(),
|
||||
1,
|
||||
384,
|
||||
buffers[1].as_mut_ptr().cast(),
|
||||
1,
|
||||
384,
|
||||
);
|
||||
};
|
||||
true
|
||||
}
|
||||
|
||||
pub fn set_keys(&mut self, keys: u16) {
|
||||
unsafe { vb_set_keys(self.sim, keys) };
|
||||
}
|
||||
}
|
||||
|
||||
impl Drop for CoreVB {
|
||||
fn drop(&mut self) {
|
||||
// SAFETY: the *mut VB owns its userdata.
|
||||
// There is no way for the userdata to be null or otherwise invalid.
|
||||
let ptr: *mut VBState = unsafe { vb_get_user_data(self.sim).cast() };
|
||||
// SAFETY: we made this pointer ourselves, we can for sure free it
|
||||
unsafe { drop(Box::from_raw(ptr)) };
|
||||
|
||||
let len = unsafe { vb_size_of() }.div_ceil(4);
|
||||
// SAFETY: the sim's memory originally came from a Vec<u64>
|
||||
let bytes: Vec<u64> = unsafe { Vec::from_raw_parts(self.sim.cast(), len, len) };
|
||||
drop(bytes);
|
||||
}
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in New Issue