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gst/smpte/: constify some static structs.

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Original commit message from CVS:
* gst/smpte/barboxwipes.c: (gst_wipe_boxes_draw),
(gst_wipe_triangles_clock_draw), (gst_wipe_triangles_draw):
* gst/smpte/gstmask.c: (_gst_mask_register):
* gst/smpte/gstmask.h:
* gst/smpte/gstsmpte.c: (gst_smpte_update_mask):
* gst/smpte/paint.c: (gst_smpte_paint_hbox), (draw_bresenham_line),
(gst_smpte_paint_triangle_clock):
constify some static structs.
Don't update the mask if nothing changed to the params.
Make sure we never draw outside of the picture. Fixes #398325.
This commit is contained in:
Wim Taymans 2007-01-23 17:27:39 +00:00
parent a10f2478bb
commit 168db53bf4
6 changed files with 95 additions and 40 deletions
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13
ChangeLog
View file

@ -1,3 +1,16 @@
2007-01-23 Wim Taymans <wim@fluendo.com>
* gst/smpte/barboxwipes.c: (gst_wipe_boxes_draw),
(gst_wipe_triangles_clock_draw), (gst_wipe_triangles_draw):
* gst/smpte/gstmask.c: (_gst_mask_register):
* gst/smpte/gstmask.h:
* gst/smpte/gstsmpte.c: (gst_smpte_update_mask):
* gst/smpte/paint.c: (gst_smpte_paint_hbox), (draw_bresenham_line),
(gst_smpte_paint_triangle_clock):
constify some static structs.
Don't update the mask if nothing changed to the params.
Make sure we never draw outside of the picture. Fixes #398325.
2007-01-22 Tim-Philipp Müller <tim at centricular dot net>
* gst/avi/gstavidemux.c: (gst_avi_demux_stream_header_pull):

89
gst/smpte/barboxwipes.c
View file

@ -32,14 +32,14 @@ enum
TRIGANLE_LINEAR = 4
};
static gint boxes_1b[][7] = {
static const gint boxes_1b[][7] = {
#define WIPE_B1_1 0
{BOX_VERTICAL, 0, 0, 0, 1, 1, 1},
#define WIPE_B1_2 1
{BOX_HORIZONTAL, 0, 0, 0, 1, 1, 1}
};
static gint boxes_2b[][7 * 2] = {
static const gint boxes_2b[][7 * 2] = {
#define WIPE_B2_21 0
{BOX_VERTICAL, 0, 0, 1, 1, 2, 0,
BOX_VERTICAL, 1, 0, 0, 2, 2, 1},
@ -48,7 +48,7 @@ static gint boxes_2b[][7 * 2] = {
BOX_HORIZONTAL, 0, 1, 0, 2, 2, 1},
};
static gint box_clock_1b[][1 * 10] = {
static const gint box_clock_1b[][1 * 10] = {
#define WIPE_B1_241 0
{BOX_CLOCK, 0, 0, 0, 1, 0, 0, 0, 1, 1},
#define WIPE_B1_242 1
@ -60,7 +60,7 @@ static gint box_clock_1b[][1 * 10] = {
};
#define WIPE_B2_221 0
static gint box_clock_2b[][2 * 10] = {
static const gint box_clock_2b[][2 * 10] = {
#define WIPE_B2_221 0
{BOX_CLOCK, 1, 0, 0, 2, 0, 0, 1, 2, 1,
BOX_CLOCK, 1, 0, 0, 1, 2, 1, 0, 0, 2},
@ -105,7 +105,7 @@ static gint box_clock_2b[][2 * 10] = {
BOX_CLOCK, 2, 2, 0, 2, 1, 0, 0, 2, 1},
};
static gint box_clock_4b[][4 * 10] = {
static const gint box_clock_4b[][4 * 10] = {
#define WIPE_B4_201 0
{BOX_CLOCK, 1, 1, 0, 1, 0, 0, 2, 1, 1,
BOX_CLOCK, 1, 1, 0, 2, 1, 1, 1, 2, 2,
@ -183,7 +183,7 @@ static gint box_clock_4b[][4 * 10] = {
BOX_CLOCK, 2, 1, 0, 1, 1, 0, 2, 2, 1},
};
static gint box_clock_8b[][8 * 10] = {
static const gint box_clock_8b[][8 * 10] = {
#define WIPE_B8_261 0
{BOX_CLOCK, 2, 1, 0, 2, 2, 0, 4, 1, 1,
BOX_CLOCK, 2, 1, 0, 4, 1, 1, 2, 0, 2,
@ -222,7 +222,7 @@ static gint box_clock_8b[][8 * 10] = {
BOX_CLOCK, 3, 2, 0, 3, 4, 1, 2, 2, 2},
};
static gint triangles_2t[][2 * 9] = {
static const gint triangles_2t[][2 * 9] = {
/* 3 -> 6 */
#define WIPE_T2_3 0
{0, 0, 0, 0, 1, 1, 1, 1, 1,
@ -256,7 +256,7 @@ static gint triangles_2t[][2 * 9] = {
2, 0, 0, 2, 2, 0, 0, 2, 1},
};
static gint triangles_3t[][3 * 9] = {
static const gint triangles_3t[][3 * 9] = {
/* 23 -> 26 */
#define WIPE_T3_23 0
{0, 0, 1, 1, 0, 0, 0, 2, 1,
@ -276,7 +276,7 @@ static gint triangles_3t[][3 * 9] = {
0, 1, 0, 0, 2, 1, 2, 2, 1},
};
static gint triangles_4t[][4 * 9] = {
static const gint triangles_4t[][4 * 9] = {
#define WIPE_T4_61 0
{0, 0, 1, 1, 0, 0, 1, 2, 1,
0, 0, 1, 0, 2, 2, 1, 2, 1,
@ -324,7 +324,7 @@ static gint triangles_4t[][4 * 9] = {
2, 0, 1, 1, 1, 0, 2, 2, 1},
};
static gint triangles_8t[][8 * 9] = {
static const gint triangles_8t[][8 * 9] = {
/* 7 */
#define WIPE_T8_7 0
{0, 0, 0, 1, 0, 1, 1, 1, 1,
@ -373,7 +373,7 @@ static gint triangles_8t[][8 * 9] = {
2, 1, 0, 1, 2, 0, 2, 2, 1},
};
static gint triangles_16t[][16 * 9] = {
static const gint triangles_16t[][16 * 9] = {
/* 8 */
#define WIPE_T16_8 0
{0, 0, 1, 2, 0, 1, 1, 1, 0,
@ -398,14 +398,14 @@ typedef struct _GstWipeConfig GstWipeConfig;
struct _GstWipeConfig
{
gint *objects;
const gint *objects;
gint nobjects;
gint xscale;
gint yscale;
gint cscale;
};
static GstWipeConfig wipe_config[] = {
static const GstWipeConfig wipe_config[] = {
#define WIPE_CONFIG_1 0
{boxes_1b[WIPE_B1_1], 1, 0, 0, 0}, /* 1 */
#define WIPE_CONFIG_2 WIPE_CONFIG_1+1
@ -554,8 +554,8 @@ static GstWipeConfig wipe_config[] = {
static void
gst_wipe_boxes_draw (GstMask * mask)
{
GstWipeConfig *config = mask->user_data;
gint *impacts = config->objects;
const GstWipeConfig *config = mask->user_data;
const gint *impacts = config->objects;
gint width = (mask->width >> config->xscale);
gint height = (mask->height >> config->yscale);
gint depth = (1 << mask->bpp) >> config->cscale;
@ -565,22 +565,35 @@ gst_wipe_boxes_draw (GstMask * mask)
for (i = 0; i < config->nobjects; i++) {
switch (impacts[0]) {
case BOX_VERTICAL:
/* vbox does not draw last pixels */
gst_smpte_paint_vbox (mask->data, mask->width,
impacts[1] * width, impacts[2] * height, impacts[3] * depth,
impacts[4] * width, impacts[5] * height, impacts[6] * depth);
impacts += 7;
break;
case BOX_HORIZONTAL:
/* hbox does not draw last pixels */
gst_smpte_paint_hbox (mask->data, mask->width,
impacts[1] * width, impacts[2] * height, impacts[3] * depth,
impacts[4] * width, impacts[5] * height, impacts[6] * depth);
impacts += 7;
case BOX_CLOCK:
{
gint x0, y0, x1, y1, x2, y2;
/* make sure not to draw outside the area */
x0 = MIN (impacts[1] * width, mask->width - 1);
y0 = MIN (impacts[2] * height, mask->height - 1);
x1 = MIN (impacts[4] * width, mask->width - 1);
y1 = MIN (impacts[5] * height, mask->height - 1);
x2 = MIN (impacts[7] * width, mask->width - 1);
y2 = MIN (impacts[8] * height, mask->height - 1);
gst_smpte_paint_box_clock (mask->data, mask->width,
impacts[1] * width, impacts[2] * height, impacts[3] * depth,
impacts[4] * width, impacts[5] * height, impacts[6] * depth,
impacts[7] * width, impacts[8] * height, impacts[9] * depth);
x0, y0, impacts[3] * depth, x1, y1, impacts[6] * depth,
x2, y2, impacts[9] * depth);
impacts += 10;
}
default:
break;
}
@ -590,18 +603,27 @@ gst_wipe_boxes_draw (GstMask * mask)
static void
gst_wipe_triangles_clock_draw (GstMask * mask)
{
GstWipeConfig *config = mask->user_data;
gint *impacts = config->objects;
const GstWipeConfig *config = mask->user_data;
const gint *impacts = config->objects;
gint width = (mask->width >> config->xscale);
gint height = (mask->height >> config->yscale);
gint depth = (1 << mask->bpp) >> config->cscale;
gint i;
for (i = 0; i < config->nobjects; i++) {
gint x0, y0, x1, y1, x2, y2;
/* make sure not to draw outside the area */
x0 = MIN (impacts[0] * width, mask->width - 1);
y0 = MIN (impacts[1] * height, mask->height - 1);
x1 = MIN (impacts[3] * width, mask->width - 1);
y1 = MIN (impacts[4] * height, mask->height - 1);
x2 = MIN (impacts[6] * width, mask->width - 1);
y2 = MIN (impacts[7] * height, mask->height - 1);
gst_smpte_paint_triangle_clock (mask->data, mask->width,
impacts[0] * width, impacts[1] * height, impacts[2] * depth,
impacts[3] * width, impacts[4] * height, impacts[5] * depth,
impacts[6] * width, impacts[7] * height, impacts[8] * depth);
x0, y0, impacts[2] * depth, x1, y1, impacts[5] * depth,
x2, y2, impacts[8] * depth);
impacts += 9;
}
}
@ -609,8 +631,8 @@ gst_wipe_triangles_clock_draw (GstMask * mask)
static void
gst_wipe_triangles_draw (GstMask * mask)
{
GstWipeConfig *config = mask->user_data;
gint *impacts = config->objects;
const GstWipeConfig *config = mask->user_data;
const gint *impacts = config->objects;
gint width = (mask->width >> config->xscale);
gint height = (mask->height >> config->yscale);
gint depth = (1 << mask->bpp) >> config->cscale;
@ -618,15 +640,24 @@ gst_wipe_triangles_draw (GstMask * mask)
gint i;
for (i = 0; i < config->nobjects; i++) {
gint x0, y0, x1, y1, x2, y2;
/* make sure not to draw outside the area */
x0 = MIN (impacts[0] * width, mask->width - 1);
y0 = MIN (impacts[1] * height, mask->height - 1);
x1 = MIN (impacts[3] * width, mask->width - 1);
y1 = MIN (impacts[4] * height, mask->height - 1);
x2 = MIN (impacts[6] * width, mask->width - 1);
y2 = MIN (impacts[7] * height, mask->height - 1);
gst_smpte_paint_triangle_linear (mask->data, mask->width,
impacts[0] * width, impacts[1] * height, impacts[2] * depth,
impacts[3] * width, impacts[4] * height, impacts[5] * depth,
impacts[6] * width, impacts[7] * height, impacts[8] * depth);
x0, y0, impacts[2] * depth, x1, y1, impacts[5] * depth,
x2, y2, impacts[8] * depth);
impacts += 9;
}
}
static GstMaskDefinition definitions[] = {
static const GstMaskDefinition definitions[] = {
{1, "bar-wipe-lr",
"A bar moves from left to right",
gst_wipe_boxes_draw, _gst_mask_default_destroy,

5
gst/smpte/gstmask.c
View file

@ -41,10 +41,11 @@ gst_mask_compare (GstMaskDefinition * def1, GstMaskDefinition * def2)
}
void
_gst_mask_register (GstMaskDefinition * definition)
_gst_mask_register (const GstMaskDefinition * definition)
{
masks =
g_list_insert_sorted (masks, definition, (GCompareFunc) gst_mask_compare);
g_list_insert_sorted (masks, (gpointer) definition,
(GCompareFunc) gst_mask_compare);
}
const GList *

10
gst/smpte/gstmask.h
View file

@ -31,17 +31,17 @@ typedef void (*GstMaskDestroyFunc) (GstMask *mask);
struct _GstMaskDefinition {
gint type;
gchar *short_name;
gchar *long_name;
const gchar *short_name;
const gchar *long_name;
GstMaskDrawFunc draw_func;
GstMaskDestroyFunc destroy_func;
gpointer user_data;
gconstpointer user_data;
};
struct _GstMask {
gint type;
guint32 *data;
gpointer user_data;
gconstpointer user_data;
gint width;
gint height;
@ -51,7 +51,7 @@ struct _GstMask {
};
void _gst_mask_init (void);
void _gst_mask_register (GstMaskDefinition *definition);
void _gst_mask_register (const GstMaskDefinition *definition);
void _gst_mask_default_destroy (GstMask *mask);

7
gst/smpte/gstsmpte.c
View file

@ -280,6 +280,13 @@ gst_smpte_update_mask (GstSMPTE * smpte, gint type, gint depth, gint width,
{
GstMask *newmask;
if (smpte->mask) {
if (smpte->type == type &&
smpte->depth == depth &&
smpte->width == width && smpte->height == height)
return TRUE;
}
newmask = gst_mask_factory_new (type, depth, width, height);
if (newmask) {
if (smpte->mask) {

11
gst/smpte/paint.c
View file

@ -65,8 +65,6 @@ gst_smpte_paint_hbox (guint32 * dest, gint stride,
g_assert (width > 0);
g_assert (height > 0);
g_print ("vbox: %d %d %d %d %d %d\n", x0, y0, c0, x1, y1, c1);
dest = dest + y0 * stride + x0;
for (i = 0; i < height; i++) {
@ -219,11 +217,13 @@ static void
draw_bresenham_line (guint32 * dest, gint stride,
gint x0, gint y0, gint x1, gint y1, guint32 col)
{
gint dx = abs (x1 - x0);
gint dy = abs (y1 - y0);
gint dx, dy;
gint x_incr, y_incr;
gint i, dpr, dpru, P, indep;
dx = abs (x1 - x0);
dy = abs (y1 - y0);
dest = dest + y0 * stride + x0;
x_incr = SIGN (x1 - x0);
@ -301,6 +301,9 @@ gst_smpte_paint_triangle_clock (guint32 * dest, gint stride,
draw_bresenham_line (dest, stride,
x0, y0, i, y1, (c2 * angle + c1 * (1.0 - angle)));
}
} else {
g_warning ("paint triangle clock: not supported");
return;
}
}