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renderer/metal: cache buf cells

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This commit is contained in:
Mitchell Hashimoto
2024-02-13 19:10:58 -08:00
parent 0c1d288142
commit 9f6db11b95
1 changed files with 13 additions and 12 deletions
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25
src/renderer/Metal.zig
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@ -108,8 +108,6 @@ image_text_end: u32 = 0,
/// Metal state
shaders: Shaders, // Compiled shaders
buf_cells: CellBuffer, // Vertex buffer for cells
buf_cells_bg: CellBuffer, // Vertex buffer for background cells
buf_instance: InstanceBuffer, // MTLBuffer
/// Metal objects
@ -373,10 +371,6 @@ pub fn init(alloc: Allocator, options: renderer.Options) !Metal {
errdefer font_shaper.deinit();
// Vertex buffers
var buf_cells = try CellBuffer.init(device, 160 * 160);
errdefer buf_cells.deinit();
var buf_cells_bg = try CellBuffer.init(device, 160 * 160);
errdefer buf_cells_bg.deinit();
var buf_instance = try InstanceBuffer.initFill(device, &.{
0, 1, 3, // Top-left triangle
1, 2, 3, // Bottom-right triangle
@ -459,8 +453,6 @@ pub fn init(alloc: Allocator, options: renderer.Options) !Metal {
// Shaders
.shaders = shaders,
.buf_cells = buf_cells,
.buf_cells_bg = buf_cells_bg,
.buf_instance = buf_instance,
// Metal stuff
@ -492,8 +484,6 @@ pub fn deinit(self: *Metal) void {
}
self.image_placements.deinit(self.alloc);
self.buf_cells_bg.deinit();
self.buf_cells.deinit();
self.buf_instance.deinit();
if (self.visible_resources) |*v| v.deinit();
self.queue.msgSend(void, objc.sel("release"), .{});
@ -865,13 +855,13 @@ pub fn drawFrame(self: *Metal, surface: *apprt.Surface) !void {
try self.drawImagePlacements(encoder, self.image_placements.items[0..self.image_bg_end]);
// Then draw background cells
try self.drawCells(encoder, &self.buf_cells_bg, self.cells_bg, resources);
try self.drawCells(encoder, &resources.buf_cells_bg, self.cells_bg, resources);
// Then draw images under text
try self.drawImagePlacements(encoder, self.image_placements.items[self.image_bg_end..self.image_text_end]);
// Then draw fg cells
try self.drawCells(encoder, &self.buf_cells, self.cells, resources);
try self.drawCells(encoder, &resources.buf_cells, self.cells, resources);
// Then draw remaining images
try self.drawImagePlacements(encoder, self.image_placements.items[self.image_text_end..]);
@ -2228,22 +2218,33 @@ fn deinitMTLResource(obj: objc.Object) void {
/// This is a performance optimization that makes it so that Ghostty
/// only uses GPU resources for views that are currently visible.
const VisibleResources = struct {
buf_cells: CellBuffer, // Vertex buffer for cells
buf_cells_bg: CellBuffer, // Vertex buffer for background cells
texture_greyscale: objc.Object, // MTLTexture
texture_color: objc.Object, // MTLTexture
pub fn init(m: *Metal) !VisibleResources {
var buf_cells = try CellBuffer.init(m.device, 160 * 160);
errdefer buf_cells.deinit();
var buf_cells_bg = try CellBuffer.init(m.device, 160 * 160);
errdefer buf_cells_bg.deinit();
const texture_greyscale = try initAtlasTexture(m.device, &m.font_group.atlas_greyscale);
errdefer deinitMTLResource(texture_greyscale);
const texture_color = try initAtlasTexture(m.device, &m.font_group.atlas_color);
errdefer deinitMTLResource(texture_color);
return .{
.buf_cells = buf_cells,
.buf_cells_bg = buf_cells_bg,
.texture_greyscale = texture_greyscale,
.texture_color = texture_color,
};
}
pub fn deinit(self: *VisibleResources) void {
self.buf_cells.deinit();
self.buf_cells_bg.deinit();
deinitMTLResource(self.texture_greyscale);
deinitMTLResource(self.texture_color);
}