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kbz_8
2026-05-29 00:45:07 +02:00
parent fc2407d10d
commit b26c4ff9e6
3 changed files with 187 additions and 21 deletions
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src/soft/device/blitter.zig
+34 -21
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@@ -804,20 +804,22 @@ pub fn readFloat4(map: []const u8, src_format: vk.Format) F32x4 {
return c;
}
pub fn writeFloat4(color: F32x4, map: []u8, dst_format: vk.Format) void {
pub fn writeFloat4(c: F32x4, map: []u8, dst_format: vk.Format) void {
const color = std.math.clamp(c, zm.f32x4s(base.format.minElementValue(dst_format)), zm.f32x4s(base.format.maxElementValue(dst_format)));
switch (dst_format) {
.r8_unorm,
.r8_srgb,
.s8_uint,
=> map[0] = @intFromFloat(@round(color[0] * std.math.maxInt(u8))),
.r8_snorm => map[0] = @intFromFloat(@round(color[0] * std.math.maxInt(i8))),
.r8_snorm => map[0] = @bitCast(@as(i8, @intFromFloat(@round(color[0] * std.math.maxInt(i8))))),
.r16_sint,
.r16_uint,
=> std.mem.bytesAsValue(u16, map).* = @intFromFloat(@round(color[0])),
.r16_snorm => std.mem.bytesAsValue(u16, map).* = @intFromFloat(@round(color[0] * std.math.maxInt(i16))),
.r16_snorm => std.mem.bytesAsValue(u16, map).* = @bitCast(@as(i16, @intFromFloat(@round(color[0] * std.math.maxInt(i16))))),
.r16_unorm,
.d16_unorm,
@@ -834,8 +836,8 @@ pub fn writeFloat4(color: F32x4, map: []u8, dst_format: vk.Format) void {
=> std.mem.bytesAsValue(f32, map).* = color[0],
.r8g8_snorm => {
map[0] = @intFromFloat(@round(color[0] * std.math.maxInt(i8)));
map[1] = @intFromFloat(@round(color[1] * std.math.maxInt(i8)));
map[0] = @bitCast(@as(i8, @intFromFloat(@round(color[0] * std.math.maxInt(i8)))));
map[1] = @bitCast(@as(i8, @intFromFloat(@round(color[1] * std.math.maxInt(i8)))));
},
.r8g8_unorm,
@@ -846,8 +848,8 @@ pub fn writeFloat4(color: F32x4, map: []u8, dst_format: vk.Format) void {
},
.r16g16_snorm => {
std.mem.bytesAsValue(u16, map[0..]).* = @intFromFloat(@round(color[0] * std.math.maxInt(i16)));
std.mem.bytesAsValue(u16, map[2..]).* = @intFromFloat(@round(color[1] * std.math.maxInt(i16)));
std.mem.bytesAsValue(u16, map[0..]).* = @bitCast(@as(i16, @intFromFloat(@round(color[0] * std.math.maxInt(i16)))));
std.mem.bytesAsValue(u16, map[2..]).* = @bitCast(@as(i16, @intFromFloat(@round(color[1] * std.math.maxInt(i16)))));
},
.r16g16_unorm => {
@@ -855,6 +857,11 @@ pub fn writeFloat4(color: F32x4, map: []u8, dst_format: vk.Format) void {
std.mem.bytesAsValue(u16, map[2..]).* = @intFromFloat(@round(color[1] * std.math.maxInt(u16)));
},
.r16g16_uint => {
std.mem.bytesAsValue(u16, map[0..]).* = @intFromFloat(@round(color[0]));
std.mem.bytesAsValue(u16, map[2..]).* = @intFromFloat(@round(color[1]));
},
.r16g16_sfloat => {
std.mem.bytesAsValue(f16, map[0..]).* = @floatCast(color[0]);
std.mem.bytesAsValue(f16, map[2..]).* = @floatCast(color[1]);
@@ -865,7 +872,6 @@ pub fn writeFloat4(color: F32x4, map: []u8, dst_format: vk.Format) void {
std.mem.bytesAsValue(f32, map[4..]).* = color[1];
},
.r16g16b16a16_sint,
.r16g16b16a16_uint,
.r16g16b16a16_unorm,
=> {
@@ -875,11 +881,13 @@ pub fn writeFloat4(color: F32x4, map: []u8, dst_format: vk.Format) void {
std.mem.bytesAsValue(u16, map[6..]).* = @intFromFloat(@round(color[3] * std.math.maxInt(u16)));
},
.r16g16b16a16_snorm => {
std.mem.bytesAsValue(u16, map[0..]).* = @intFromFloat(@round(color[0] * std.math.maxInt(i16)));
std.mem.bytesAsValue(u16, map[2..]).* = @intFromFloat(@round(color[1] * std.math.maxInt(i16)));
std.mem.bytesAsValue(u16, map[4..]).* = @intFromFloat(@round(color[2] * std.math.maxInt(i16)));
std.mem.bytesAsValue(u16, map[6..]).* = @intFromFloat(@round(color[3] * std.math.maxInt(i16)));
.r16g16b16a16_sint,
.r16g16b16a16_snorm,
=> {
std.mem.bytesAsValue(u16, map[0..]).* = @bitCast(@as(i16, @intFromFloat(@round(color[0] * std.math.maxInt(i16)))));
std.mem.bytesAsValue(u16, map[2..]).* = @bitCast(@as(i16, @intFromFloat(@round(color[1] * std.math.maxInt(i16)))));
std.mem.bytesAsValue(u16, map[4..]).* = @bitCast(@as(i16, @intFromFloat(@round(color[2] * std.math.maxInt(i16)))));
std.mem.bytesAsValue(u16, map[6..]).* = @bitCast(@as(i16, @intFromFloat(@round(color[3] * std.math.maxInt(i16)))));
},
.r16g16b16a16_sfloat => {
@@ -964,17 +972,17 @@ pub fn writeFloat4(color: F32x4, map: []u8, dst_format: vk.Format) void {
.a8b8g8r8_sint_pack32,
.a8b8g8r8_snorm_pack32,
=> {
map[0] = @intFromFloat(@round(color[0] * std.math.maxInt(i8)));
map[1] = @intFromFloat(@round(color[1] * std.math.maxInt(i8)));
map[2] = @intFromFloat(@round(color[2] * std.math.maxInt(i8)));
map[3] = @intFromFloat(@round(color[3] * std.math.maxInt(i8)));
map[0] = @bitCast(@as(i8, @intFromFloat(@round(color[0] * std.math.maxInt(i8)))));
map[1] = @bitCast(@as(i8, @intFromFloat(@round(color[1] * std.math.maxInt(i8)))));
map[2] = @bitCast(@as(i8, @intFromFloat(@round(color[2] * std.math.maxInt(i8)))));
map[3] = @bitCast(@as(i8, @intFromFloat(@round(color[3] * std.math.maxInt(i8)))));
},
.r8g8b8a8_snorm => {
map[0] = @intFromFloat(@round(color[0] * std.math.maxInt(i8)));
map[1] = @intFromFloat(@round(color[1] * std.math.maxInt(i8)));
map[2] = @intFromFloat(@round(color[2] * std.math.maxInt(i8)));
map[3] = @intFromFloat(@round(color[3] * std.math.maxInt(i8)));
map[0] = @bitCast(@as(i8, @intFromFloat(@round(color[0] * std.math.maxInt(i8)))));
map[1] = @bitCast(@as(i8, @intFromFloat(@round(color[1] * std.math.maxInt(i8)))));
map[2] = @bitCast(@as(i8, @intFromFloat(@round(color[2] * std.math.maxInt(i8)))));
map[3] = @bitCast(@as(i8, @intFromFloat(@round(color[3] * std.math.maxInt(i8)))));
},
.a2r10g10b10_uint_pack32,
@@ -1005,6 +1013,11 @@ pub fn writeFloat4(color: F32x4, map: []u8, dst_format: vk.Format) void {
(@as(u32, a) << 30);
},
.r32g32b32a32_uint => {
std.debug.print("{}\n", .{@as(@Vector(4, f64), color) * @as(@Vector(4, f64), @splat(std.math.maxInt(u32)))});
std.mem.bytesAsValue(U32x4, map).* = @intFromFloat(@round(@as(@Vector(4, f64), color) * @as(@Vector(4, f64), @splat(std.math.maxInt(u32)))));
},
.r32g32b32a32_sfloat => std.mem.bytesAsValue(F32x4, map).* = color,
.r5g6b5_unorm_pack16 => {