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Made the preset numbering more logical in liblzma API.

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This commit is contained in:
Lasse Collin 2008-10-07 09:40:31 +03:00
parent 5e4df4c3c0
commit 1e8e4fd1f3
5 changed files with 18 additions and 17 deletions
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20
src/liblzma/api/lzma/container.h
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@ -49,7 +49,7 @@ typedef enum {
/**<
* LZMA2 filter with fast compression (fast in terms of LZMA2).
* If you are interested in the exact options used, see
* lzma_preset_lzma[0]. Note that the exact options may
* lzma_lzma_preset(1). Note that the exact options may
* change between liblzma versions.
*
* At the moment, the command line tool uses these settings
@ -57,18 +57,18 @@ typedef enum {
* may default to some more complex way to determine the
* settings used e.g. the type of files being compressed.
*
* LZMA_EASY_LZMA_2 is equivalent to lzma_preset_lzma[1]
* LZMA_EASY_LZMA2_2 is equivalent to lzma_lzma_preset(2)
* and so on.
*/
LZMA_EASY_LZMA_2 = 2,
LZMA_EASY_LZMA_3 = 3,
LZMA_EASY_LZMA_4 = 4,
LZMA_EASY_LZMA_5 = 5,
LZMA_EASY_LZMA_6 = 6,
LZMA_EASY_LZMA_7 = 7,
LZMA_EASY_LZMA_8 = 8,
LZMA_EASY_LZMA_9 = 9,
LZMA_EASY_LZMA2_2 = 2,
LZMA_EASY_LZMA2_3 = 3,
LZMA_EASY_LZMA2_4 = 4,
LZMA_EASY_LZMA2_5 = 5,
LZMA_EASY_LZMA2_6 = 6,
LZMA_EASY_LZMA2_7 = 7,
LZMA_EASY_LZMA2_8 = 8,
LZMA_EASY_LZMA2_9 = 9,
} lzma_easy_level;

2
src/liblzma/api/lzma/lzma.h
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@ -394,7 +394,7 @@ typedef struct {
/**
* \brief Set a compression level preset to lzma_options_lzma structure
*
* level = 0 is the fastest and level = 8 is the slowest. These presets match
* level = 1 is the fastest and level = 9 is the slowest. These presets match
* the switches -1 .. -9 of the command line tool.
*
* The preset values are subject to changes between liblzma versions.

3
src/liblzma/lzma/lzma_encoder_presets.c
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@ -53,9 +53,10 @@ lzma_lzma_preset(lzma_options_lzma *options, uint32_t level)
extern LZMA_API lzma_bool
lzma_lzma_preset(lzma_options_lzma *options, uint32_t level)
{
if (level >= 9)
if (level == 0 || level > 9)
return true;
--level;
memzero(options, sizeof(*options));
static const uint8_t shift[9] = { 16, 20, 19, 20, 21, 22, 23, 24, 25 };

8
src/lzma/args.c
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@ -40,13 +40,13 @@ bool opt_keep_original = false;
bool opt_preserve_name = false;
lzma_check opt_check = LZMA_CHECK_CRC64;
lzma_filter opt_filters[8];
lzma_filter opt_filters[LZMA_BLOCK_FILTERS_MAX + 1];
// We don't modify or free() this, but we need to assign it in some
// non-const pointers.
const char *stdin_filename = "(stdin)";
static size_t preset_number = 7 - 1;
static size_t preset_number = 7;
static bool preset_default = true;
static size_t filter_count = 0;
@ -178,7 +178,7 @@ parse_real(int argc, char **argv)
case '1': case '2': case '3': case '4':
case '5': case '6': case '7': case '8': case '9':
preset_number = c - '1';
preset_number = c - '0';
preset_default = false;
break;
@ -502,7 +502,7 @@ set_compression_settings(void)
// setting is used.
if (preset_default) {
while (memory_usage > opt_memory) {
if (preset_number == 0) {
if (preset_number == 1) {
errmsg(V_ERROR, _("Memory usage limit is too "
"small for any internal "
"filter preset"));

2
src/lzma/args.h
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@ -55,7 +55,7 @@ extern enum tool_mode opt_mode;
extern enum format_type opt_format;
extern lzma_check opt_check;
extern lzma_filter opt_filters[8];
extern lzma_filter opt_filters[LZMA_BLOCK_FILTERS_MAX + 1];
extern const char *stdin_filename;