bool pdf_plot_path(const float *p, unsigned int n, colour fill, float width,
colour c, const float transform[6])
{
unsigned int i;
bool empty_path;
#ifdef PDF_DEBUG
NSLOG(netsurf, INFO, ".");
#endif
if (n == 0)
return true;
if (c == NS_TRANSPARENT && fill == NS_TRANSPARENT)
return true;
if (p[0] != PLOTTER_PATH_MOVE)
return false;
apply_clip_and_mode(false, fill, c, width, DashPattern_eNone);
empty_path = true;
for (i = 0 ; i < n ; ) {
if (p[i] == PLOTTER_PATH_MOVE) {
HPDF_Page_MoveTo(pdf_page,
transform_x(transform, p[i+1], p[i+2]),
transform_y(transform, p[i+1], p[i+2]));
i+= 3;
} else if (p[i] == PLOTTER_PATH_CLOSE) {
if (!empty_path)
HPDF_Page_ClosePath(pdf_page);
i++;
} else if (p[i] == PLOTTER_PATH_LINE) {
HPDF_Page_LineTo(pdf_page,
transform_x(transform, p[i+1], p[i+2]),
transform_y(transform, p[i+1], p[i+2]));
i+=3;
empty_path = false;
} else if (p[i] == PLOTTER_PATH_BEZIER) {
HPDF_Page_CurveTo(pdf_page,
transform_x(transform, p[i+1], p[i+2]),
transform_y(transform, p[i+1], p[i+2]),
transform_x(transform, p[i+3], p[i+4]),
transform_y(transform, p[i+3], p[i+4]),
transform_x(transform, p[i+5], p[i+6]),
transform_y(transform, p[i+5], p[i+6]));
i += 7;
empty_path = false;
} else {
NSLOG(netsurf, INFO, "bad path command %f", p[i]);
return false;
}
}
if (empty_path) {
HPDF_Page_EndPath(pdf_page);
return true;
}
if (fill != NS_TRANSPARENT) {
if (c != NS_TRANSPARENT)
HPDF_Page_FillStroke(pdf_page);
else
HPDF_Page_Fill(pdf_page);
}
else
HPDF_Page_Stroke(pdf_page);
return true;
}
void VectorView::on_display()
{
set_ortho_projection();
glDisable(GL_LIGHTING);
glDisable(GL_DEPTH_TEST);
glDisable(GL_TEXTURE_1D);
glPolygonMode(GL_FRONT_AND_BACK, pmode ? GL_LINE : GL_FILL);
// initial grid point and grid step
double gt = gs;
if (hexa) gt *= sqrt(3.0)/2.0;
double max_length = 0.0;
// transform all vertices
vec.lock_data();
int i;
int nv = vec.get_num_vertices();
double4* vert = vec.get_vertices();
double2* tvert = new double2[nv];
for (i = 0; i < nv; i++)
{
tvert[i][0] = transform_x(vert[i][0]);
tvert[i][1] = transform_y(vert[i][1]);
// find max length of vectors
double length = sqr(vert[i][2]) + sqr(vert[i][3]);
if (length > max_length) max_length = length;
}
max_length = sqrt(max_length);
// value range
double min = range_min, max = range_max;
if (range_auto) { min = vec.get_min_value(); max = vec.get_max_value(); }
double irange = 1.0 / (max - min);
// special case: constant solution
if (fabs(min - max) < 1e-8) { irange = 1.0; min -= 0.5; }
// draw all triangles
int3* xtris = vec.get_triangles();
if (mode != 1) glEnable(GL_TEXTURE_1D);
glBindTexture(GL_TEXTURE_1D, gl_pallete_tex_id);
glBegin(GL_TRIANGLES);
glColor3f(0.95f, 0.95f, 0.95f);
for (i = 0; i < vec.get_num_triangles(); i++)
{
double mag = sqrt(sqr(vert[xtris[i][0]][2]) + sqr(vert[xtris[i][0]][3]));
glTexCoord2d((mag -min) * irange * tex_scale + tex_shift, 0.0);
glVertex2d(tvert[xtris[i][0]][0], tvert[xtris[i][0]][1]);
mag = sqrt(sqr(vert[xtris[i][1]][2]) + sqr(vert[xtris[i][1]][3]));
glTexCoord2d((mag -min) * irange * tex_scale + tex_shift, 0.0);
glVertex2d(tvert[xtris[i][1]][0], tvert[xtris[i][1]][1]);
mag = sqrt(sqr(vert[xtris[i][2]][2]) + sqr(vert[xtris[i][2]][3]));
glTexCoord2d((mag -min) * irange * tex_scale + tex_shift, 0.0);
glVertex2d(tvert[xtris[i][2]][0], tvert[xtris[i][2]][1]);
}
glEnd();
glDisable(GL_TEXTURE_1D);
// draw all edges
/*if (mode == 0) glColor3f(0.3, 0.3, 0.3);
else*/ glColor3f(0.5, 0.5, 0.5);
glBegin(GL_LINES);
int3* edges = vec.get_edges();
for (i = 0; i < vec.get_num_edges(); i++)
{
if (lines || edges[i][2] != 0)
{
glVertex2d(tvert[edges[i][0]][0], tvert[edges[i][0]][1]);
glVertex2d(tvert[edges[i][1]][0], tvert[edges[i][1]][1]);
}
}
glEnd();
// draw dashed edges
if (lines)
{
glEnable(GL_LINE_STIPPLE);
glLineStipple(1, 0xCCCC);
glBegin(GL_LINES);
int2* dashes = vec.get_dashes();
for (i = 0; i < vec.get_num_dashes(); i++)
{
glVertex2d(tvert[dashes[i][0]][0], tvert[dashes[i][0]][1]);
glVertex2d(tvert[dashes[i][1]][0], tvert[dashes[i][1]][1]);
}
glEnd();
glDisable(GL_LINE_STIPPLE);
}
// draw arrows
if (mode != 2)
{
for (i = 0; i < vec.get_num_triangles(); i++)
{
double miny = 1e100;
int idx, k, l1, l2, r2, r1, s;
double lry, x;
double mr, ml, lx, rx, xval, yval;
double wh = output_height + gt, ww = output_width + gs;
if ((tvert[xtris[i][0]][0] < -gs) && (tvert[xtris[i][1]][0] < -gs) && (tvert[xtris[i][2]][0] < -gs)) continue;
if ((tvert[xtris[i][0]][0] > ww) && (tvert[xtris[i][1]][0] > ww) && (tvert[xtris[i][2]][0] > ww)) continue;
if ((tvert[xtris[i][0]][1] < -gt) && (tvert[xtris[i][1]][1] < -gt) && (tvert[xtris[i][2]][1] < -gt)) continue;
if ((tvert[xtris[i][0]][1] > wh) && (tvert[xtris[i][1]][1] > wh) && (tvert[xtris[i][2]][1] > wh)) continue;
// find vertex with min y-coordinate
for (k = 0; k < 3; k++)
if (tvert[xtris[i][k]][1] < miny)
miny = tvert[xtris[i][idx = k]][1];
l1 = r1 = xtris[i][idx];
l2 = xtris[i][n_vert(idx)];
r2 = xtris[i][p_vert(idx)];
// plane of x and y values on triangle
double a[2], b[2], c[2], d[2];
for (int n = 0; n < 2; n++)
{
a[n] = (tvert[l1][1] - tvert[l2][1])*(vert[r1][2 +n] - vert[r2][2+n]) - (vert[l1][2+n] - vert[l2][2+n])*(tvert[r1][1] - tvert[r2][1]);
b[n] = (vert[l1][2+n] - vert[l2][2+n])*(tvert[r1][0] - tvert[r2][0]) - (tvert[l1][0] - tvert[l2][0])*(vert[r1][2+n] - vert[r2][2+n]);
c[n] = (tvert[l1][0] - tvert[l2][0])*(tvert[r1][1] - tvert[r2][1]) - (tvert[l1][1] - tvert[l2][1])*(tvert[r1][0] - tvert[r2][0]);
d[n] = -a[n] * tvert[l1][0] - b[n] * tvert[l1][1] - c[n] * vert[l1][2+n];
a[n] /= c[n]; b[n] /= c[n]; d[n] /= c[n];
}
s = (int) ceil((tvert[l1][1] - gy)/gt); // first step
lry = gy + s*gt;
bool shift = hexa && (s & 1);
// if there are two points with min y-coordinate, switch to the next segment
if ((tvert[l1][1] == tvert[l2][1]) || (tvert[r1][1] == tvert[r2][1]))
if (tvert[l1][1] == tvert[l2][1])
{l1 = l2; l2 = r2;}
else if (tvert[r1][1] == tvert[r2][1])
{r1 = r2; r2 = l2;}
// slope of the left and right segment
ml = (tvert[l1][0] - tvert[l2][0])/(tvert[l1][1] - tvert[l2][1]);
mr = (tvert[r1][0] - tvert[r2][0])/(tvert[r1][1] - tvert[r2][1]);
// x-coordinates of the endpoints of the first line
lx = tvert[l1][0] + ml * (lry - (tvert[l1][1]));
rx = tvert[r1][0] + mr * (lry - (tvert[r1][1]));
if (lry < -gt)
{
k = (int) floor(-lry/gt);
lry += gt * k;
lx += k * ml * gt;
rx += k * mr * gt;
}
// while we are in triangle
while (((lry < tvert[l2][1]) || (lry < tvert[r2][1])) && (lry < wh))
{
// while we are in the segment
while (((lry <= tvert[l2][1]) && (lry <= tvert[r2][1])) && (lry < wh))
{
double gz = gx;
if (shift) gz -= 0.5*gs;
s = (int) ceil((lx - gz)/gs);
x = gz + s*gs;
if (hexa) shift = !shift;
if (x < -gs)
{
k = (int) floor(-x/gs);
x += gs * k;
}
// go along the line
while ((x < rx) && (x < ww))
{
// plot the arrow
xval = -a[0]*x - b[0]*lry - d[0];
yval = -a[1]*x - b[1]*lry - d[1];
plot_arrow(x, lry, xval, yval, max, min, gs);
x += gs;
}
// move to the next line
lx += ml*gt;
rx += mr*gt;
lry += gt;
}
// change segment
if (lry >= tvert[l2][1]) {
l1 = l2; l2 = r2;
ml = (tvert[l1][0] - tvert[l2][0])/(tvert[l1][1] - tvert[l2][1]);
lx = tvert[l1][0] + ml * (lry - (tvert[l1][1]));
}
else {
r1 = r2; r2 = l2;
mr = (tvert[r1][0] - tvert[r2][0])/(tvert[r1][1] - tvert[r2][1]);
rx = tvert[r1][0] + mr * (lry - (tvert[r1][1]));
}
}
}
}
delete [] tvert;
vec.unlock_data();
}
enum piglit_result
test_format(int format_index)
{
const struct format *format = &formats[format_index];
GLuint tex, bo;
bool is_rg = (format->channels == R ||
format->channels == RG);
bool is_arb = (format->channels == I ||
format->channels == L ||
format->channels == LA ||
format->channels == A);
bool is_rgb32 = (format->channels == RGB);
bool pass = true;
int data_components, num_samples;
int i;
bool returns_float = (format->norm ||
format->type == GL_FLOAT ||
format->type == GL_HALF_FLOAT);
bool returns_int = (!format->norm &&
(format->type == GL_BYTE ||
format->type == GL_SHORT ||
format->type == GL_INT));
bool returns_uint = (!format->norm &&
(format->type == GL_UNSIGNED_BYTE ||
format->type == GL_UNSIGNED_SHORT ||
format->type == GL_UNSIGNED_INT));
struct program *prog;
if (returns_float)
prog = &prog_f;
else if (returns_int)
prog = &prog_i;
else
prog = &prog_u;
glUseProgram(prog->prog);
if (test_arb != is_arb)
return PIGLIT_SKIP;
if (is_rgb32 && !test_rgb32)
return PIGLIT_SKIP;
/* These didn't exist in the extension before being promoted to
* GL 3.1.
*/
if (is_rg && piglit_get_gl_version() < 31)
return PIGLIT_SKIP;
printf("Testing %s\n", piglit_get_gl_enum_name(format->format));
glGenBuffers(1, &bo);
glBindBuffer(GL_TEXTURE_BUFFER, bo);
glGenTextures(1, &tex);
glBindTexture(GL_TEXTURE_BUFFER, tex);
glTexBuffer(GL_TEXTURE_BUFFER, format->format, bo);
switch (format->type) {
case GL_BYTE:
case GL_UNSIGNED_BYTE:
glBufferData(GL_TEXTURE_BUFFER, sizeof(uint8_data), uint8_data,
GL_STATIC_READ);
data_components = ARRAY_SIZE(uint8_data);
break;
case GL_SHORT:
case GL_UNSIGNED_SHORT:
glBufferData(GL_TEXTURE_BUFFER, sizeof(uint16_data),
uint16_data, GL_STATIC_READ);
data_components = ARRAY_SIZE(uint16_data);
break;
case GL_INT:
case GL_UNSIGNED_INT:
glBufferData(GL_TEXTURE_BUFFER, sizeof(uint32_data),
uint32_data, GL_STATIC_READ);
data_components = ARRAY_SIZE(uint32_data);
break;
case GL_FLOAT:
glBufferData(GL_TEXTURE_BUFFER, sizeof(float_data), float_data,
GL_STATIC_READ);
data_components = ARRAY_SIZE(float_data);
break;
case GL_HALF_FLOAT: {
unsigned short hf_data[ARRAY_SIZE(float_data)];
for (i = 0; i < ARRAY_SIZE(float_data); i++) {
hf_data[i] = piglit_half_from_float(float_data[i]);
}
glBufferData(GL_TEXTURE_BUFFER, sizeof(hf_data), hf_data,
GL_STATIC_READ);
data_components = ARRAY_SIZE(float_data);
break;
}
default:
printf("line %d, bad type: %s\n", __LINE__,
piglit_get_gl_enum_name(format->type));
return PIGLIT_SKIP;
}
num_samples = data_components / format->components;
for (i = 0; i < num_samples; i++) {
float x1 = 5 + i * 10;
float x2 = 10 + i * 10;
float y1 = piglit_height - (5 + y_index * 10);
float y2 = piglit_height - (10 + y_index * 10);
GLfloat verts[8] = {
transform_x(x1), transform_y(y1),
transform_x(x2), transform_y(y1),
transform_x(x2), transform_y(y2),
transform_x(x1), transform_y(y2),
};
float expected_f[4];
uint32_t expected_i[4];
const float green[4] = {0, 1, 0, 0};
if (returns_float) {
if (!get_expected_f(format, i, expected_f))
return PIGLIT_SKIP;
glUniform4fv(prog->expected_location, 1, expected_f);
} else {
if (!get_expected_i(format, i, expected_i))
return PIGLIT_SKIP;
if (returns_uint) {
glUniform4uiv(prog->expected_location, 1,
expected_i);
} else {
glUniform4iv(prog->expected_location, 1,
(int *)expected_i);
}
}
glUniform1i(prog->pos_location, i);
glBufferData(GL_ARRAY_BUFFER_ARB, sizeof(verts), verts,
GL_STREAM_DRAW);
glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
if (pass &&
!piglit_probe_rect_rgba(x1, y2,
x2 - x1, y1 - y2, green)) {
if (returns_int) {
printf(" Texel: %d %d %d %d\n",
expected_i[0], expected_i[1],
expected_i[2], expected_i[3]);
} else if (returns_uint) {
printf(" Texel: %u %u %u %u\n",
expected_i[0], expected_i[1],
expected_i[2], expected_i[3]);
} else {
printf(" Texel: %f %f %f %f\n",
expected_f[0], expected_f[1],
expected_f[2], expected_f[3]);
}
pass = false;
}
}
glDeleteBuffers(1, &bo);
glDeleteTextures(1, &tex);
glUseProgram(0);
y_index++;
piglit_report_subtest_result(pass ? PIGLIT_PASS : PIGLIT_FAIL,
"%s", piglit_get_gl_enum_name(format->format));
return pass ? PIGLIT_PASS : PIGLIT_FAIL;
}
void OrderView::on_display()
{
set_ortho_projection();
glDisable(GL_TEXTURE_1D);
glDisable(GL_LIGHTING);
glDisable(GL_DEPTH_TEST);
// transform all vertices
ord.lock_data();
int i, nv = ord.get_num_vertices();
double3* vert = ord.get_vertices();
double2* tvert = malloc_with_check<double2>(nv);
for (i = 0; i < nv; i++)
{
tvert[i][0] = transform_x(vert[i][0]);
tvert[i][1] = transform_y(vert[i][1]);
}
// draw all triangles
int3* tris = ord.get_triangles();
glBegin(GL_TRIANGLES);
for (i = 0; i < ord.get_num_triangles(); i++)
{
const float* color = order_colors[(int)vert[tris[i][0]][2]];
glColor3f(color[0], color[1], color[2]);
glVertex2d(tvert[tris[i][0]][0], tvert[tris[i][0]][1]);
glVertex2d(tvert[tris[i][1]][0], tvert[tris[i][1]][1]);
glVertex2d(tvert[tris[i][2]][0], tvert[tris[i][2]][1]);
}
glEnd();
// draw all edges
if (pal_type == 0)
glColor3f(0.4f, 0.4f, 0.4f);
else if (pal_type == 1)
glColor3f(1.0f, 1.0f, 1.0f);
else
glColor3f(0.0f, 0.0f, 0.0f);
glBegin(GL_LINES);
int2* edges = ord.get_edges();
for (i = 0; i < ord.get_num_edges(); i++)
{
glVertex2d(tvert[edges[i][0]][0], tvert[edges[i][0]][1]);
glVertex2d(tvert[edges[i][1]][0], tvert[edges[i][1]][1]);
}
glEnd();
// draw labels
if (b_orders)
{
int* lvert;
char** ltext;
double2* lbox;
int nl = ord.get_labels(lvert, ltext, lbox);
for (i = 0; i < nl; i++)
if (lbox[i][0] * scale > get_text_width(ltext[i]) &&
lbox[i][1] * scale > 13)
{
//color = get_palette_color((vert[lvert[i]][2] - 1) / 9.0);
const float* color = order_colors[(int)vert[lvert[i]][2]];
if ((color[0] * 0.39f + color[1] * 0.50f + color[2] * 0.11f) > 0.5f)
glColor3f(0, 0, 0);
else
glColor3f(1, 1, 1);
draw_text(tvert[lvert[i]][0], tvert[lvert[i]][1], ltext[i], 0);
}
}
free_with_check(tvert);
ord.unlock_data();
}