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PNG: Let PNG use the new compress I/O routines.

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This commit is contained in:
Jeroen van Rijn
2021-06-27 13:51:52 +02:00
parent 02f9668185
commit eaf88bcc4d
4 changed files with 35 additions and 345 deletions
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core/compress/common.odin
+14 -6
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@@ -182,6 +182,16 @@ Context_Stream_Input :: struct #packed {
// TODO: Make these return compress.Error errors.
input_size_from_memory :: proc(z: ^Context_Memory_Input) -> (res: i64, err: Error) {
return i64(len(z.input_data)), nil;
}
input_size_from_stream :: proc(z: ^Context_Stream_Input) -> (res: i64, err: Error) {
return io.size(z.input), nil;
}
input_size :: proc{input_size_from_memory, input_size_from_stream};
@(optimization_mode="speed")
read_slice_from_memory :: #force_inline proc(z: ^Context_Memory_Input, size: int) -> (res: []u8, err: io.Error) {
#no_bounds_check {
@@ -257,12 +267,10 @@ peek_data_from_memory :: #force_inline proc(z: ^Context_Memory_Input, $T: typeid
}
}
if z.input_fully_in_memory {
if len(z.input_data) < size {
return T{}, .EOF;
} else {
return T{}, .Short_Buffer;
}
if len(z.input_data) == 0 {
return T{}, .EOF;
} else {
return T{}, .Short_Buffer;
}
}