diff options
Diffstat (limited to 'gst-libs/gst/idct/idct.c')
| -rw-r--r-- | gst-libs/gst/idct/idct.c | 160 |
1 files changed, 90 insertions, 70 deletions
diff --git a/gst-libs/gst/idct/idct.c b/gst-libs/gst/idct/idct.c index 59c6a844..4be150f1 100644 --- a/gst-libs/gst/idct/idct.c +++ b/gst-libs/gst/idct/idct.c @@ -25,24 +25,25 @@ #include <gst/idct/idct.h> #include "dct.h" -static void gst_idct_int_sparse_idct(short *data); +static void gst_idct_int_sparse_idct (short *data); -GstIDCT *gst_idct_new(GstIDCTMethod method) +GstIDCT * +gst_idct_new (GstIDCTMethod method) { - GstIDCT *new = g_malloc(sizeof(GstIDCT)); + GstIDCT *new = g_malloc (sizeof (GstIDCT)); new->need_transpose = FALSE; if (method == GST_IDCT_DEFAULT) { #ifdef HAVE_LIBMMX - if (gst_cpu_get_flags() & GST_CPU_FLAG_MMX) { + if (gst_cpu_get_flags () & GST_CPU_FLAG_MMX) { method = GST_IDCT_MMX; } /* disabled for now - if (gst_cpu_get_flags() & GST_CPU_FLAG_SSE) { - method = GST_IDCT_SSE; - } - */ + if (gst_cpu_get_flags() & GST_CPU_FLAG_SSE) { + method = GST_IDCT_SSE; + } + */ else #endif /* HAVE_LIBMMX */ { @@ -53,49 +54,50 @@ GstIDCT *gst_idct_new(GstIDCTMethod method) new->convert_sparse = gst_idct_int_sparse_idct; switch (method) { - case GST_IDCT_FAST_INT: - GST_INFO ( "using fast_int_idct"); - gst_idct_init_fast_int_idct(); - new->convert = gst_idct_fast_int_idct; - break; - case GST_IDCT_INT: - GST_INFO ( "using int_idct"); - new->convert = gst_idct_int_idct; - break; - case GST_IDCT_FLOAT: - GST_INFO ( "using float_idct"); - gst_idct_init_float_idct(); - new->convert = gst_idct_float_idct; - break; + case GST_IDCT_FAST_INT: + GST_INFO ("using fast_int_idct"); + gst_idct_init_fast_int_idct (); + new->convert = gst_idct_fast_int_idct; + break; + case GST_IDCT_INT: + GST_INFO ("using int_idct"); + new->convert = gst_idct_int_idct; + break; + case GST_IDCT_FLOAT: + GST_INFO ("using float_idct"); + gst_idct_init_float_idct (); + new->convert = gst_idct_float_idct; + break; #ifdef HAVE_LIBMMX - case GST_IDCT_MMX: - GST_INFO ( "using MMX_idct"); - new->convert = gst_idct_mmx_idct; - new->need_transpose = TRUE; - break; - case GST_IDCT_MMX32: - GST_INFO ( "using MMX32_idct"); - new->convert = gst_idct_mmx32_idct; - new->need_transpose = TRUE; - break; - case GST_IDCT_SSE: - GST_INFO ( "using SSE_idct"); - new->convert = gst_idct_sse_idct; - new->need_transpose = TRUE; - break; + case GST_IDCT_MMX: + GST_INFO ("using MMX_idct"); + new->convert = gst_idct_mmx_idct; + new->need_transpose = TRUE; + break; + case GST_IDCT_MMX32: + GST_INFO ("using MMX32_idct"); + new->convert = gst_idct_mmx32_idct; + new->need_transpose = TRUE; + break; + case GST_IDCT_SSE: + GST_INFO ("using SSE_idct"); + new->convert = gst_idct_sse_idct; + new->need_transpose = TRUE; + break; #endif /* HAVE_LIBMMX */ - default: - GST_INFO ( "method not supported"); - g_free(new); - return NULL; + default: + GST_INFO ("method not supported"); + g_free (new); + return NULL; } return new; } -static void gst_idct_int_sparse_idct(short *data) +static void +gst_idct_int_sparse_idct (short *data) { short val; - gint32 v, *dp = (guint32 *)data; + gint32 v, *dp = (guint32 *) data; v = *data; @@ -104,43 +106,61 @@ static void gst_idct_int_sparse_idct(short *data) val += (8 >> 1); val /= 8; val = -val; - } - else { + } else { val = (v + (8 >> 1)) / 8; } - v = (( val & 0xffff) | (val << 16)); - - dp[0] = v; dp[1] = v; dp[2] = v; dp[3] = v; - dp[4] = v; dp[5] = v; dp[6] = v; dp[7] = v; - dp[8] = v; dp[9] = v; dp[10] = v; dp[11] = v; - dp[12] = v; dp[13] = v; dp[14] = v; dp[15] = v; - dp[16] = v; dp[17] = v; dp[18] = v; dp[19] = v; - dp[20] = v; dp[21] = v; dp[22] = v; dp[23] = v; - dp[24] = v; dp[25] = v; dp[26] = v; dp[27] = v; - dp[28] = v; dp[29] = v; dp[30] = v; dp[31] = v; + v = ((val & 0xffff) | (val << 16)); + + dp[0] = v; + dp[1] = v; + dp[2] = v; + dp[3] = v; + dp[4] = v; + dp[5] = v; + dp[6] = v; + dp[7] = v; + dp[8] = v; + dp[9] = v; + dp[10] = v; + dp[11] = v; + dp[12] = v; + dp[13] = v; + dp[14] = v; + dp[15] = v; + dp[16] = v; + dp[17] = v; + dp[18] = v; + dp[19] = v; + dp[20] = v; + dp[21] = v; + dp[22] = v; + dp[23] = v; + dp[24] = v; + dp[25] = v; + dp[26] = v; + dp[27] = v; + dp[28] = v; + dp[29] = v; + dp[30] = v; + dp[31] = v; } -void gst_idct_destroy(GstIDCT *idct) +void +gst_idct_destroy (GstIDCT * idct) { - g_return_if_fail(idct != NULL); + g_return_if_fail (idct != NULL); - g_free(idct); + g_free (idct); } static gboolean -plugin_init (GstPlugin *plugin) +plugin_init (GstPlugin * plugin) { return TRUE; } -GST_PLUGIN_DEFINE ( - GST_VERSION_MAJOR, - GST_VERSION_MINOR, - "gstidct", - "Accelerated IDCT routines", - plugin_init, - VERSION, - GST_LICENSE, - GST_PACKAGE, - GST_ORIGIN -) +GST_PLUGIN_DEFINE (GST_VERSION_MAJOR, + GST_VERSION_MINOR, + "gstidct", + "Accelerated IDCT routines", + plugin_init, VERSION, GST_LICENSE, GST_PACKAGE, GST_ORIGIN) |