kbz_8/VulkanDriver
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adding fragdepth propagation, adjusting attachment sizing
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kbz_8
2026-06-19 22:20:59 +02:00
parent 59716cc794
commit 4d4578ff46
9 changed files with 129 additions and 65 deletions
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src/software/SoftPipeline.zig
+18 -25
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@@ -11,6 +11,8 @@ const Device = base.Device;
const VkError = base.VkError;
const SpvRuntimeError = spv.Runtime.RuntimeError;
pub threadlocal var current_fragment_coord: ?vk.Offset3D = null; // Ugly hack
const NonDispatchable = base.NonDispatchable;
const ShaderModule = base.ShaderModule;
@@ -294,16 +296,18 @@ fn imageApi() spv.Runtime.ImageAPI {
};
}
fn imageMipLevel(image: *SoftImage, image_view: *SoftImageView, lod: ?i32) u32 {
const range = image_view.interface.subresource_range;
fn imageMipLevel(image_view: *SoftImageView, lod: ?i32) u32 {
const mip_lod: u32 = if (lod) |level| @intCast(@max(level, 0)) else 0;
const max_lod = if (range.level_count == vk.REMAINING_MIP_LEVELS)
image.interface.mip_levels - range.base_mip_level - 1
else
range.level_count - 1;
const range = image_view.interface.subresource_range;
const max_lod = image_view.interface.levelCount() - 1;
return range.base_mip_level + @min(mip_lod, max_lod);
}
fn subpassDataCoord(x: i32, y: i32, z: i32) SpvRuntimeError!vk.Offset3D {
const coord = current_fragment_coord orelse return SpvRuntimeError.Unknown;
return .{ .x = coord.x + x, .y = coord.y + y, .z = coord.z + z };
}
fn readImageFloat4(context: *anyopaque, dim: spv.SpvDim, x: i32, y: i32, z: i32, lod: ?i32) SpvRuntimeError!spv.Runtime.Vec4(f32) {
var pixel = zm.f32x4s(0.0);
if (dim == .Buffer) {
@@ -315,8 +319,8 @@ fn readImageFloat4(context: *anyopaque, dim: spv.SpvDim, x: i32, y: i32, z: i32,
const image_view: *SoftImageView = @ptrCast(@alignCast(context));
const image: *SoftImage = @alignCast(@fieldParentPtr("interface", image_view.interface.image));
const cube_face: u32 = if (dim == .Cube) @intCast(z) else 0;
const mip_level = imageMipLevel(image, image_view, lod);
const image_coord: vk.Offset3D = switch (image_view.interface.view_type) {
const mip_level = imageMipLevel(image_view, lod);
const image_coord: vk.Offset3D = if (dim == .SubpassData) try subpassDataCoord(x, y, z) else switch (image_view.interface.view_type) {
.@"1d", .@"1d_array" => .{ .x = x, .y = 0, .z = 0 },
.@"2d", .@"2d_array", .cube, .cube_array => .{ .x = x, .y = y, .z = 0 },
else => .{ .x = x, .y = y, .z = z },
@@ -356,8 +360,8 @@ fn readImageInt4(context: *anyopaque, dim: spv.SpvDim, x: i32, y: i32, z: i32, l
const image_view: *SoftImageView = @ptrCast(@alignCast(context));
const image: *SoftImage = @alignCast(@fieldParentPtr("interface", image_view.interface.image));
const cube_face: u32 = if (dim == .Cube) @intCast(z) else 0;
const mip_level = imageMipLevel(image, image_view, lod);
const image_coord: vk.Offset3D = switch (image_view.interface.view_type) {
const mip_level = imageMipLevel(image_view, lod);
const image_coord: vk.Offset3D = if (dim == .SubpassData) try subpassDataCoord(x, y, z) else switch (image_view.interface.view_type) {
.@"1d", .@"1d_array" => .{ .x = x, .y = 0, .z = 0 },
.@"2d", .@"2d_array", .cube, .cube_array => .{ .x = x, .y = y, .z = 0 },
else => .{ .x = x, .y = y, .z = z },
@@ -516,19 +520,13 @@ fn queryImageSize(context: *anyopaque, dim: spv.SpvDim, arrayed: bool, lod: ?i32
}
const image_view: *SoftImageView = @ptrCast(@alignCast(context));
const image: *SoftImage = @alignCast(@fieldParentPtr("interface", image_view.interface.image));
const range = image_view.interface.subresource_range;
const mip_lod: u32 = if (lod) |level| @intCast(@max(level, 0)) else 0;
const max_lod = if (range.level_count == vk.REMAINING_MIP_LEVELS)
image.interface.mip_levels - range.base_mip_level - 1
else
range.level_count - 1;
const max_lod = image_view.interface.levelCount() - 1;
const mip_level = range.base_mip_level + @min(mip_lod, max_lod);
const image: *SoftImage = @alignCast(@fieldParentPtr("interface", image_view.interface.image));
const extent = image.getMipLevelExtent(mip_level);
const layers = if (range.layer_count == vk.REMAINING_ARRAY_LAYERS)
image.interface.array_layers - range.base_array_layer
else
range.layer_count;
const layers = image_view.interface.layerCount();
return switch (dim) {
.@"1D" => if (arrayed)
.{ .x = extent.width, .y = layers, .z = 0, .w = 0 }
@@ -551,12 +549,7 @@ fn queryImageSamples(context: *anyopaque) SpvRuntimeError!u32 {
fn queryImageLevels(context: *anyopaque) SpvRuntimeError!u32 {
const image_view: *SoftImageView = @ptrCast(@alignCast(context));
const image: *SoftImage = @alignCast(@fieldParentPtr("interface", image_view.interface.image));
const range = image_view.interface.subresource_range;
return if (range.level_count == vk.REMAINING_MIP_LEVELS)
image.interface.mip_levels - range.base_mip_level
else
range.level_count;
return image_view.interface.levelCount();
}
fn queryImageLod(context: *anyopaque, context2: *anyopaque, dim: spv.SpvDim, derivatives: spv.Runtime.ImageDerivatives) SpvRuntimeError!spv.Runtime.Vec4(f32) {