static cairo_test_status_t
intersecting_triangles (cairo_t *cr, int width, int height)
{
int x, y, channel;
state = 0x12345678;
cairo_set_source_rgb (cr, 0.0, 0.0, 0.0);
cairo_paint (cr);
#if GENERATE_REFERENCE
for (x = 0; x < WIDTH; x++) {
cairo_set_source_rgba (cr, 1, 1, 1, x * x * 0.75 / (WIDTH * WIDTH));
cairo_rectangle (cr, x, 0, 1, HEIGHT);
cairo_fill (cr);
}
#else
cairo_set_operator (cr, CAIRO_OPERATOR_ADD);
for (channel = 0; channel < 3; channel++) {
switch (channel) {
default:
case 0: cairo_set_source_rgb (cr, 1.0, 0.0, 0.0); break;
case 1: cairo_set_source_rgb (cr, 0.0, 1.0, 0.0); break;
case 2: cairo_set_source_rgb (cr, 0.0, 0.0, 1.0); break;
}
for (x = 0; x < WIDTH; x++) {
double step = x / (double) WIDTH;
for (y = 0; y < HEIGHT; y++) {
double dx = random_offset (WIDTH - x, TRUE);
double dy = random_offset (WIDTH - x, TRUE);
/* left */
cairo_move_to (cr, x + dx, y + dy);
cairo_rel_line_to (cr, 0, step);
cairo_rel_line_to (cr, step, 0);
cairo_close_path (cr);
/* right, mirrored */
cairo_move_to (cr, x + dx + step, y + dy + step);
cairo_rel_line_to (cr, 0, -step);
cairo_rel_line_to (cr, -step, step);
cairo_close_path (cr);
}
}
cairo_fill (cr);
}
#endif
return CAIRO_TEST_SUCCESS;
}
char * corrupt_zeros(char * data, size_t * dataSz)
{
// Choose between zero corruption methods
// 0. Insert zeros in to the bitstream
// 1. Replace random bytes with zeros
int choice = randomInt(0, 1);
size_t corruptLoc = random_offset(*dataSz);
size_t corruptSize = randomInt(1, 0x100);
// we can't corrupt this crap TODO fix this
if(*dataSz < CORRUPT_START_MIN)
return data;
char * replacement = calloc(corruptSize, sizeof(char));
if(!replacement)
return data;
memset(replacement, 0x0, corruptSize);
if(choice == 0)
{
data = insertBytes(data, dataSz, replacement,
corruptSize, corruptLoc);
}
else if(choice == 1)
{
data = replaceBytes(data, dataSz, replacement,
corruptSize, corruptLoc);
}
return data;
}
static cairo_test_status_t
rectangles (cairo_t *cr, int width, int height)
{
int x, y, channel;
state = 0x12345678;
cairo_set_source_rgb (cr, 0.0, 0.0, 0.0);
cairo_paint (cr);
#if GENERATE_REFERENCE
for (x = 0; x < WIDTH; x++) {
cairo_set_source_rgba (cr, 1, 1, 1, x * x * 1.0 / (WIDTH * WIDTH));
cairo_rectangle (cr, x, 0, 1, HEIGHT);
cairo_fill (cr);
}
#else
cairo_set_operator (cr, CAIRO_OPERATOR_ADD);
for (channel = 0; channel < 3; channel++) {
switch (channel) {
default:
case 0: cairo_set_source_rgb (cr, 1.0, 0.0, 0.0); break;
case 1: cairo_set_source_rgb (cr, 0.0, 1.0, 0.0); break;
case 2: cairo_set_source_rgb (cr, 0.0, 0.0, 1.0); break;
}
for (x = 0; x < WIDTH; x++) {
for (y = 0; y < HEIGHT; y++) {
double dx = random_offset (WIDTH - x, TRUE);
double dy = random_offset (WIDTH - x, TRUE);
cairo_rectangle (cr, x + dx, y + dy, x / (double) WIDTH, x / (double) WIDTH);
}
}
cairo_fill (cr);
}
#endif
return CAIRO_TEST_SUCCESS;
}
static cairo_test_status_t
row_triangles (cairo_t *cr, int width, int height)
{
int x, y, i, channel;
state = 0x12345678;
cairo_set_source_rgb (cr, 0.0, 0.0, 0.0);
cairo_paint (cr);
#if GENERATE_REFERENCE
for (x = 0; x < WIDTH; x++) {
cairo_set_source_rgba (cr, 1, 1, 1, x * 0.5 / WIDTH);
cairo_rectangle (cr, x, 0, 1, HEIGHT);
cairo_fill (cr);
}
#else
cairo_set_operator (cr, CAIRO_OPERATOR_ADD);
for (channel = 0; channel < 3; channel++) {
switch (channel) {
default:
case 0: cairo_set_source_rgb (cr, 1.0, 0.0, 0.0); break;
case 1: cairo_set_source_rgb (cr, 0.0, 1.0, 0.0); break;
case 2: cairo_set_source_rgb (cr, 0.0, 0.0, 1.0); break;
}
for (x = 0; x < WIDTH; x++) {
double step = x / (double) (2 * WIDTH);
for (y = 0; y < HEIGHT; y++) {
for (i = 0; i < PRECISION; i++) {
double dx = random_offset (WIDTH - x, FALSE);
/* See column_triangles() for a transposed description
* of this geometry.
*/
cairo_move_to (cr, x + dx, y + i / (double) PRECISION);
cairo_rel_line_to (cr, step, 0);
cairo_rel_line_to (cr, step, 1 / (double) PRECISION);
cairo_rel_line_to (cr, -step, 0);
cairo_close_path (cr);
}
cairo_fill (cr); /* do these per-pixel due to the extra volume of edges */
}
}
}
#endif
return CAIRO_TEST_SUCCESS;
}
char * corrupt_flipsign(char * data, size_t * dataSz)
{
size_t bitsToFlip = randomInt(0, 20);
size_t i;
// Flip the MSB of a random amount of bytes
for(i = 0; i < bitsToFlip; i++)
{
size_t off = random_offset(*dataSz);
// flip the MSB
data[off] = data[off] ^ 0x80;
}
return data;
}
char * corrupt_bits(char * data, size_t * dataSz)
{
size_t bitsToCorrupt = randomInt(0, 20);
size_t i;
// Flip the MSB of a random amount of bytes
for(i = 0; i < bitsToCorrupt; i++)
{
size_t off = random_offset(*dataSz);
size_t bit = randomInt(0, 7);
// flip the bit
data[off] = data[off] ^ (1 << bit);
}
return data;
}
Instruction*
perform_change_rec (Instruction* inst, guint32 change_off, guint* total_len)
{
if (change_off < inst->length)
{
guint32 to_delete = cmd_deletion_length;
guint32 avail = inst->length;
guint32 this_delete = MIN (to_delete, avail);
Instruction* new_inst;
// One delete
inst->length -= this_delete;
to_delete -= this_delete;
while (to_delete > 0 && inst->next->length < to_delete)
{
to_delete -= inst->next->length;
inst->next = inst->next->next;
}
if (to_delete > 0)
inst->next->offset += to_delete;
// One insert
new_inst = g_new0 (Instruction, 1);
new_inst->offset = random_offset (cmd_insertion_length);
new_inst->length = cmd_insertion_length;
new_inst->next = inst->next;
inst->next = new_inst;
(* total_len) += cmd_insertion_length - cmd_deletion_length;
return inst;
}
else
{
inst->next = perform_change_rec (inst->next, change_off - inst->length, total_len);
return inst;
}
}
char * corrupt_edgenum(char * data, size_t * dataSz)
{
/* Corruptor: Edgenum
*
* Goal: tries to add values determined to be the 'edges'
* of the common data types. Think 0, -1, MAX_INT, MAX_INT-1,
* etc.
*
* This corruptor should only replace, never insert. We want
* to mess up length fields.
*/
size_t corruptLoc = random_offset(*dataSz);
uint32_t corruptVal = randomInt(0, sizeof(corruptVals32) /
sizeof(corruptVals32[0])-1);
data = insertBytes(data, dataSz, (char *)&corruptVal,
sizeof(uint32_t), corruptLoc);
return data;
}
static cairo_test_status_t
column_triangles (cairo_t *cr, int width, int height)
{
int x, y, i, channel;
state = 0x12345678;
cairo_set_source_rgb (cr, 0.0, 0.0, 0.0);
cairo_paint (cr);
#if GENERATE_REFERENCE
for (x = 0; x < WIDTH; x++) {
cairo_set_source_rgba (cr, 1, 1, 1, x * 0.5 / WIDTH);
cairo_rectangle (cr, x, 0, 1, HEIGHT);
cairo_fill (cr);
}
#else
cairo_set_operator (cr, CAIRO_OPERATOR_ADD);
for (channel = 0; channel < 3; channel++) {
switch (channel) {
default:
case 0: cairo_set_source_rgb (cr, 1.0, 0.0, 0.0); break;
case 1: cairo_set_source_rgb (cr, 0.0, 1.0, 0.0); break;
case 2: cairo_set_source_rgb (cr, 0.0, 0.0, 1.0); break;
}
for (x = 0; x < WIDTH; x++) {
double step = x / (double) (2 * WIDTH);
for (y = 0; y < HEIGHT; y++) {
for (i = 0; i < PRECISION; i++) {
double dy = random_offset (WIDTH - x, FALSE);
/*
* We want to test some sharing of edges to further
* stress the rasterisers, so instead of using one
* tall triangle, it is split into two, with vertical
* edges on either side that may co-align with their
* neighbours:
*
* s --- . ---
* t | |\ |
* e | | \ |
* p --- .... | 2 * step = x / WIDTH
* \ | |
* \| |
* . ---
* |---|
* 1 / PRECISION
*
* Each column contains two triangles of width one quantum and
* total height of (x / WIDTH), thus the total area covered by all
* columns in each pixel is .5 * (x / WIDTH).
*/
cairo_move_to (cr, x + i / (double) PRECISION, y + dy);
cairo_rel_line_to (cr, 0, step);
cairo_rel_line_to (cr, 1 / (double) PRECISION, step);
cairo_rel_line_to (cr, 0, -step);
cairo_close_path (cr);
}
cairo_fill (cr); /* do these per-pixel due to the extra volume of edges */
}
}
}
#endif
return CAIRO_TEST_SUCCESS;
}
void
test1 (TestProfile *test_profile,
File *from_file,
File *to_file,
File *out_file,
File *re_file)
{
int ret;
guint i, change, current_size = cmd_size;
guint end_size = (cmd_changes * cmd_insertion_length) + cmd_size;
Instruction* inst;
struct stat sbuf;
int zlevel_i, slevel_i;
seed48 (cmd_seed);
if ((ret = stat (cmd_data_source, & sbuf)))
{
perror (cmd_data_source);
fail ();
}
if (! (data_source_handle = fopen (cmd_data_source, "r")))
{
perror (cmd_data_source);
fail ();
}
data_source_length = sbuf.st_size;
/* arbitrary checks */
if (data_source_length < (1.5 * end_size))
g_warning ("data source should be longer\n");
if ((cmd_changes * cmd_deletion_length) > cmd_size)
{
g_warning ("no copies are expected\n");
fail ();
}
inst = g_new0 (Instruction, 1);
inst->offset = random_offset (cmd_size);
inst->length = cmd_size;
current_from_size = write_file (from_file, inst);
for (change = 0; change < cmd_changes; change += 1)
inst = perform_change (inst, & current_size);
current_to_size = write_file (to_file, inst);
for (slevel_i = 0; slevel_i < ARRAY_LENGTH(cmd_slevels); slevel_i += 1)
{
int slevel = cmd_slevels[slevel_i];
if ((test_profile->flags & TEST_IS_XDELTA) == 0 && slevel_i != 0)
{
continue;
}
for (zlevel_i = 0; zlevel_i < ARRAY_LENGTH(cmd_zlevels); zlevel_i += 1)
{
int zlevel = cmd_zlevels[zlevel_i];
if (test_profile->flags & TEST_IS_GZIP)
{
if (zlevel != 1 && zlevel != 9)
continue;
}
reset_stats ();
for (i = 0; i < cmd_warmups + cmd_reps; i += 1)
{
if (! run_command (test_profile,
zlevel,
slevel,
from_file,
to_file,
out_file,
re_file,
(i >= cmd_warmups) /* true => accounting */))
{
fail ();
}
}
report (test_profile, zlevel, slevel);
}
g_print ("\n");
}
}
void vtFence3d::AddFenceMeshes(vtHeightField3d *pHeightField)
{
// Trigger the creation of any materials we may need
GetMatIndex("");
uint i, j;
uint numfencepts = m_pFencePts.GetSize();
FLine3 p3;
FPoint3 diff, fp;
FPoint3 PostSize(m_Params.m_fPostWidth, m_Params.m_fPostHeight,
m_Params.m_fPostDepth);
// All culture (roads and buildings) can be draped on
int iIncludeCulture = CE_ALL;
// first, project the posts from earth to world
m_Posts3d.SetSize(numfencepts);
for (i = 0; i < numfencepts; i++)
pHeightField->ConvertEarthToSurfacePoint(m_pFencePts[i], m_Posts3d[i], iIncludeCulture);
// Find highest point
m_fMaxGroundY = -1E8;
for (i = 0; i < numfencepts; i++)
if (m_Posts3d[i].y > m_fMaxGroundY)
m_fMaxGroundY = m_Posts3d[i].y;
if (m_Params.m_PostType != "none")
{
// has posts
// determine where the fence posts go
for (i = 0; i < numfencepts; i++)
{
if (i == numfencepts-1)
{
p3.Append(m_Posts3d[i]);
continue;
}
// get start and end group points for this section
FPoint3 wpos1 = m_Posts3d[i];
FPoint3 wpos2 = m_Posts3d[i+1];
// look at world distance (approximate meters, _not_ earth
// coordinates, which might be in e.g. feet or degrees)
diff = wpos2 - wpos1;
float distance = sqrt(diff.x*diff.x+diff.z*diff.z);
uint segments = (uint) (distance / m_Params.m_fPostSpacing);
if (segments < 1) segments = 1;
FPoint3 diff_per_segment = diff / (float) segments;
for (j = 0; j < segments; j++)
{
fp = wpos1 + (diff_per_segment * (float)j);
if (i > 0 && i < numfencepts-1)
{
// randomly offset by up to 4% of fence spacing, for "realism"
fp.x += random_offset(0.04f * m_Params.m_fPostSpacing);
fp.z += random_offset(0.04f * m_Params.m_fPostSpacing);
}
// false: true elevation, true: include culture (structures and roads)
pHeightField->FindAltitudeAtPoint(fp, fp.y, false, CE_ALL);
p3.Append(fp);
}
}
// generate the posts
// Look first for post materials (type 3)
int iMatIdx = GetMatIndex(m_Params.m_PostType, RGBf(), 3);
// If that didn't work, look for any material by that name
if (iMatIdx == -1)
int iMatIdx = GetMatIndex(m_Params.m_PostType);
for (i = 0; i < p3.GetSize(); i++)
AddFencepost(p3[i], iMatIdx);
}
else
{
// no post spacing to consider, so just use the input vertices
p3.SetSize(numfencepts);
for (i = 0; i < numfencepts; i++)
p3[i] = m_Posts3d[i];
}
if (m_Params.m_PostExtension != "none")
AddPostExtensions(p3);
// if not enough points, nothing connections to create
if (p3.GetSize() < 2)
return;
if (m_Params.m_iConnectType == 0) // none
{
// nothing to do
}
else if (m_Params.m_iConnectType == 1) // wire
{
AddWireMeshes(p3);
}
if (m_Params.m_ConnectMaterial == "none")
return;
if (m_Params.m_iConnectType == 2) // simple
{
if (m_Params.m_fConnectWidth == 0.0f)
AddFlatConnectionMesh(p3);
else if (m_Params.m_fConnectWidth > 0.0f)
AddThickConnectionMesh(p3);
}
else if (m_Params.m_iConnectType == 3) // profile
{
AddProfileConnectionMesh(p3);
}
}