aboutsummaryrefslogtreecommitdiff
path: root/engines/scumm/imuse_digi/dimuse_codecs.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'engines/scumm/imuse_digi/dimuse_codecs.cpp')
-rw-r--r--engines/scumm/imuse_digi/dimuse_codecs.cpp150
1 files changed, 75 insertions, 75 deletions
diff --git a/engines/scumm/imuse_digi/dimuse_codecs.cpp b/engines/scumm/imuse_digi/dimuse_codecs.cpp
index 601bfddbe9..17082f5256 100644
--- a/engines/scumm/imuse_digi/dimuse_codecs.cpp
+++ b/engines/scumm/imuse_digi/dimuse_codecs.cpp
@@ -188,51 +188,51 @@ static int32 compDecode(byte *src, byte *dst) {
}
#undef NextBit
-int32 decompressCodec(int32 codec, byte *comp_input, byte *comp_output, int32 input_size) {
- int32 output_size, channels;
+int32 decompressCodec(int32 codec, byte *compInput, byte *compOutput, int32 inputSize) {
+ int32 outputSize, channels;
int32 offset1, offset2, offset3, length, k, c, s, j, r, t, z;
byte *src, *t_table, *p, *ptr;
byte t_tmp1, t_tmp2;
switch (codec) {
case 0:
- memcpy(comp_output, comp_input, input_size);
- output_size = input_size;
+ memcpy(compOutput, compInput, inputSize);
+ outputSize = inputSize;
break;
case 1:
- output_size = compDecode(comp_input, comp_output);
+ outputSize = compDecode(compInput, compOutput);
break;
case 2:
- output_size = compDecode(comp_input, comp_output);
- p = comp_output;
- for (z = 1; z < output_size; z++)
+ outputSize = compDecode(compInput, compOutput);
+ p = compOutput;
+ for (z = 1; z < outputSize; z++)
p[z] += p[z - 1];
break;
case 3:
- output_size = compDecode(comp_input, comp_output);
- p = comp_output;
- for (z = 2; z < output_size; z++)
+ outputSize = compDecode(compInput, compOutput);
+ p = compOutput;
+ for (z = 2; z < outputSize; z++)
p[z] += p[z - 1];
- for (z = 1; z < output_size; z++)
+ for (z = 1; z < outputSize; z++)
p[z] += p[z - 1];
break;
case 4:
- output_size = compDecode(comp_input, comp_output);
- p = comp_output;
- for (z = 2; z < output_size; z++)
+ outputSize = compDecode(compInput, compOutput);
+ p = compOutput;
+ for (z = 2; z < outputSize; z++)
p[z] += p[z - 1];
- for (z = 1; z < output_size; z++)
+ for (z = 1; z < outputSize; z++)
p[z] += p[z - 1];
- t_table = (byte *)malloc(output_size);
+ t_table = (byte *)malloc(outputSize);
assert(t_table);
- src = comp_output;
- length = (output_size << 3) / 12;
+ src = compOutput;
+ length = (outputSize << 3) / 12;
k = 0;
if (length > 0) {
c = -12;
@@ -258,23 +258,23 @@ int32 decompressCodec(int32 codec, byte *comp_input, byte *comp_output, int32 in
}
offset1 = ((length - 1) * 3) >> 1;
t_table[offset1 + 1] = (t_table[offset1 + 1]) | (src[length - 1] & 0xf0);
- memcpy(src, t_table, output_size);
+ memcpy(src, t_table, outputSize);
free(t_table);
break;
case 5:
- output_size = compDecode(comp_input, comp_output);
- p = comp_output;
- for (z = 2; z < output_size; z++)
+ outputSize = compDecode(compInput, compOutput);
+ p = compOutput;
+ for (z = 2; z < outputSize; z++)
p[z] += p[z - 1];
- for (z = 1; z < output_size; z++)
+ for (z = 1; z < outputSize; z++)
p[z] += p[z - 1];
- t_table = (byte *)malloc(output_size);
+ t_table = (byte *)malloc(outputSize);
assert(t_table);
- src = comp_output;
- length = (output_size << 3) / 12;
+ src = compOutput;
+ length = (outputSize << 3) / 12;
k = 1;
c = 0;
s = 12;
@@ -300,29 +300,29 @@ int32 decompressCodec(int32 codec, byte *comp_input, byte *comp_output, int32 in
j++;
} while (k < t);
}
- memcpy(src, t_table, output_size);
+ memcpy(src, t_table, outputSize);
free(t_table);
break;
case 6:
- output_size = compDecode(comp_input, comp_output);
- p = comp_output;
- for (z = 2; z < output_size; z++)
+ outputSize = compDecode(compInput, compOutput);
+ p = compOutput;
+ for (z = 2; z < outputSize; z++)
p[z] += p[z - 1];
- for (z = 1; z < output_size; z++)
+ for (z = 1; z < outputSize; z++)
p[z] += p[z - 1];
- t_table = (byte *)malloc(output_size);
+ t_table = (byte *)malloc(outputSize);
assert(t_table);
- src = comp_output;
- length = (output_size << 3) / 12;
+ src = compOutput;
+ length = (outputSize << 3) / 12;
k = 0;
c = 0;
j = 0;
s = -12;
- t_table[0] = src[output_size - 1];
- t_table[output_size - 1] = src[length - 1];
+ t_table[0] = src[outputSize - 1];
+ t_table[outputSize - 1] = src[length - 1];
t = length - 1;
if (t > 0) {
do {
@@ -343,26 +343,26 @@ int32 decompressCodec(int32 codec, byte *comp_input, byte *comp_output, int32 in
j++;
} while (k < t);
}
- memcpy(src, t_table, output_size);
+ memcpy(src, t_table, outputSize);
free(t_table);
break;
case 10:
- output_size = compDecode(comp_input, comp_output);
- p = comp_output;
- for (z = 2; z < output_size; z++)
+ outputSize = compDecode(compInput, compOutput);
+ p = compOutput;
+ for (z = 2; z < outputSize; z++)
p[z] += p[z - 1];
- for (z = 1; z < output_size; z++)
+ for (z = 1; z < outputSize; z++)
p[z] += p[z - 1];
- t_table = (byte *)malloc(output_size);
+ t_table = (byte *)malloc(outputSize);
assert(t_table);
- memcpy(t_table, p, output_size);
+ memcpy(t_table, p, outputSize);
- offset1 = output_size / 3;
+ offset1 = outputSize / 3;
offset2 = offset1 << 1;
offset3 = offset2;
- src = comp_output;
+ src = compOutput;
while (offset1--) {
offset2 -= 2;
@@ -371,8 +371,8 @@ int32 decompressCodec(int32 codec, byte *comp_input, byte *comp_output, int32 in
t_table[offset2 + 1] = src[offset3];
}
- src = comp_output;
- length = (output_size << 3) / 12;
+ src = compOutput;
+ length = (outputSize << 3) / 12;
k = 0;
if (length > 0) {
c = -12;
@@ -402,21 +402,21 @@ int32 decompressCodec(int32 codec, byte *comp_input, byte *comp_output, int32 in
break;
case 11:
- output_size = compDecode(comp_input, comp_output);
- p = comp_output;
- for (z = 2; z < output_size; z++)
+ outputSize = compDecode(compInput, compOutput);
+ p = compOutput;
+ for (z = 2; z < outputSize; z++)
p[z] += p[z - 1];
- for (z = 1; z < output_size; z++)
+ for (z = 1; z < outputSize; z++)
p[z] += p[z - 1];
- t_table = (byte *)malloc(output_size);
+ t_table = (byte *)malloc(outputSize);
assert(t_table);
- memcpy(t_table, p, output_size);
+ memcpy(t_table, p, outputSize);
- offset1 = output_size / 3;
+ offset1 = outputSize / 3;
offset2 = offset1 << 1;
offset3 = offset2;
- src = comp_output;
+ src = compOutput;
while (offset1--) {
offset2 -= 2;
@@ -425,8 +425,8 @@ int32 decompressCodec(int32 codec, byte *comp_input, byte *comp_output, int32 in
t_table[offset2 + 1] = src[offset3];
}
- src = comp_output;
- length = (output_size << 3) / 12;
+ src = compOutput;
+ length = (outputSize << 3) / 12;
k = 1;
c = 0;
s = 12;
@@ -456,21 +456,21 @@ int32 decompressCodec(int32 codec, byte *comp_input, byte *comp_output, int32 in
break;
case 12:
- output_size = compDecode(comp_input, comp_output);
- p = comp_output;
- for (z = 2; z < output_size; z++)
+ outputSize = compDecode(compInput, compOutput);
+ p = compOutput;
+ for (z = 2; z < outputSize; z++)
p[z] += p[z - 1];
- for (z = 1; z < output_size; z++)
+ for (z = 1; z < outputSize; z++)
p[z] += p[z - 1];
- t_table = (byte *)malloc(output_size);
+ t_table = (byte *)malloc(outputSize);
assert(t_table);
- memcpy(t_table, p, output_size);
+ memcpy(t_table, p, outputSize);
- offset1 = output_size / 3;
+ offset1 = outputSize / 3;
offset2 = offset1 << 1;
offset3 = offset2;
- src = comp_output;
+ src = compOutput;
while (offset1--) {
offset2 -= 2;
@@ -479,13 +479,13 @@ int32 decompressCodec(int32 codec, byte *comp_input, byte *comp_output, int32 in
t_table[offset2 + 1] = src[offset3];
}
- src = comp_output;
- length = (output_size << 3) / 12;
+ src = compOutput;
+ length = (outputSize << 3) / 12;
k = 0;
c = 0;
s = -12;
- src[0] = t_table[output_size - 1];
- src[output_size - 1] = t_table[length - 1];
+ src[0] = t_table[outputSize - 1];
+ src[outputSize - 1] = t_table[length - 1];
t = length - 1;
if (t > 0) {
do {
@@ -536,9 +536,9 @@ int32 decompressCodec(int32 codec, byte *comp_input, byte *comp_output, int32 in
// We only support mono and stereo
assert(channels == 1 || channels == 2);
- src = comp_input;
- dst = comp_output;
- output_size = 0x2000;
+ src = compInput;
+ dst = compOutput;
+ outputSize = 0x2000;
outputSamplesLeft = 0x1000;
// Every data packet contains 0x2000 bytes of audio data
@@ -641,11 +641,11 @@ int32 decompressCodec(int32 codec, byte *comp_input, byte *comp_output, int32 in
default:
error("BundleCodecs::decompressCodec() Unknown codec %d!", (int)codec);
- output_size = 0;
+ outputSize = 0;
break;
}
- return output_size;
+ return outputSize;
}
} // End of namespace BundleCodecs
generated by cgit v1.2.3 (git 2.25.1) at 2025-05-22 22:31:50 +0000