/* Create an image enumerator given image parameters and a graphics state. */
int
gs_image_begin_typed(const gs_image_common_t * pic, gs_state * pgs,
bool uses_color, gx_image_enum_common_t ** ppie)
{
gx_device *dev = gs_currentdevice(pgs);
gx_clip_path *pcpath;
int code = gx_effective_clip_path(pgs, &pcpath);
gx_device *dev2 = dev;
gx_device_color dc_temp, *pdevc = pgs->dev_color;
if (code < 0)
return code;
/* Processing an image object operation */
gs_set_object_tag(pgs, GS_IMAGE_TAG);
if (uses_color) {
gx_set_dev_color(pgs);
code = gs_state_color_load(pgs);
if (code < 0)
return code;
}
/* Imagemask with shading color needs a special optimization
with converting the image into a clipping.
Check for such case after gs_state_color_load is done,
because it can cause interpreter callout.
*/
if (pic->type->begin_typed_image == &gx_begin_image1) {
gs_image_t *image = (gs_image_t *)pic;
if(image->ImageMask) {
code = gx_image_fill_masked_start(dev, pgs->dev_color, pcpath, pgs->memory, &dev2);
if (code < 0)
return code;
}
if (dev2 != dev) {
set_nonclient_dev_color(&dc_temp, 1);
pdevc = &dc_temp;
}
}
code = gx_device_begin_typed_image(dev2, (const gs_imager_state *)pgs,
NULL, pic, NULL, pdevc, pcpath, pgs->memory, ppie);
if (code < 0)
return code;
code = is_image_visible(pic, pgs, pcpath);
if (code < 0)
return code;
if (!code)
(*ppie)->skipping = true;
return 0;
}
static int
test5(gs_state * pgs, gs_memory_t * mem)
{
gx_device *dev = gs_currentdevice(pgs);
gx_image_enum_common_t *info;
gx_image_plane_t planes[5];
gx_drawing_color dcolor;
int code;
static const byte data3[] =
{
0x00, 0x44, 0x88, 0xcc,
0x44, 0x88, 0xcc, 0x00,
0x88, 0xcc, 0x00, 0x44,
0xcc, 0x00, 0x44, 0x88
};
gs_color_space *gray_cs = gs_cspace_new_DeviceGray(mem);
/*
* Neither ImageType 3 nor 4 needs a current color,
* but some intermediate code assumes it's valid.
*/
set_nonclient_dev_color(&dcolor, 0);
/* Scale everything up, and fill the background. */
{
gs_matrix mat;
gs_currentmatrix(pgs, &mat);
mat.xx = gs_copysign(98.6, mat.xx);
mat.yy = gs_copysign(98.6, mat.yy);
mat.tx = floor(mat.tx) + 0.499;
mat.ty = floor(mat.ty) + 0.499;
gs_setmatrix(pgs, &mat);
}
gs_setrgbcolor(pgs, 1.0, 0.9, 0.9);
fill_rect1(pgs, 0.25, 0.25, 4.0, 6.0);
gs_setrgbcolor(pgs, 0.5, 1.0, 0.5);
#if 0
/* Make things a little more interesting.... */
gs_translate(pgs, 1.0, 1.0);
gs_rotate(pgs, 10.0);
gs_scale(pgs, 1.3, 0.9);
#endif
#define do_image(image, idata)\
BEGIN\
code = gx_device_begin_typed_image(dev, (gs_imager_state *)pgs, NULL,\
(gs_image_common_t *)&image, NULL, &dcolor, NULL, mem, &info);\
/****** TEST code >= 0 ******/\
planes[0].data = idata;\
planes[0].data_x = 0;\
planes[0].raster = (image.Height * image.BitsPerComponent + 7) >> 3;\
code = gx_image_plane_data(info, planes, image.Height);\
/****** TEST code == 1 ******/\
code = gx_image_end(info, true);\
/****** TEST code >= 0 ******/\
END
#define W 4
#define H 4
/* Test an unmasked image. */
gs_gsave(pgs);
{
gs_image1_t image1;
void *info1;
gs_color_space *cs;
cs = gs_cspace_new_DeviceGray(mem);
gs_image_t_init(&image1, cs);
/* image */
image1.ImageMatrix.xx = W;
image1.ImageMatrix.yy = -H;
image1.ImageMatrix.ty = H;
/* data_image */
image1.Width = W;
image1.Height = H;
image1.BitsPerComponent = 8;
gs_translate(pgs, 0.5, 4.0);
code = gx_device_begin_image(dev, (gs_imager_state *) pgs,
&image1, gs_image_format_chunky,
NULL, &dcolor, NULL, mem, &info1);
/****** TEST code >= 0 ******/
planes[0].data = data3;
planes[0].data_x = 0;
planes[0].raster =
(image1.Height * image1.BitsPerComponent + 7) >> 3;
/* Use the old image_data API. */
code = gx_image_data(info1, &planes[0].data, 0,
planes[0].raster, image1.Height);
/****** TEST code == 1 ******/
code = gx_image_end(info1, true);
/****** TEST code >= 0 ******/
gs_free_object(mem, cs, "colorspace");
}
gs_grestore(pgs);
/* Test an explicitly masked image. */
gs_gsave(pgs);
{
gs_image3_t image3;
static const byte data3mask[] =
{
0x60,
0x90,
0x90,
0x60
};
static const byte data3x2mask[] =
{
0x66,
0x99,
0x99,
0x66,
0x66,
0x99,
0x99,
0x66
};
gs_image3_t_init(&image3, gray_cs, interleave_scan_lines);
/* image */
image3.ImageMatrix.xx = W;
image3.ImageMatrix.yy = -H;
image3.ImageMatrix.ty = H;
/* data_image */
image3.Width = W;
image3.Height = H;
image3.BitsPerComponent = 8;
/* MaskDict */
image3.MaskDict.ImageMatrix = image3.ImageMatrix;
image3.MaskDict.Width = image3.Width;
image3.MaskDict.Height = image3.Height;
/* Display with 1-for-1 mask and image. */
gs_translate(pgs, 0.5, 2.0);
code = gx_device_begin_typed_image(dev, (gs_imager_state *) pgs,
NULL, (gs_image_common_t *) & image3,
NULL, &dcolor, NULL, mem, &info);
/****** TEST code >= 0 ******/
planes[0].data = data3mask;
planes[0].data_x = 0;
planes[0].raster = (image3.MaskDict.Height + 7) >> 3;
planes[1].data = data3;
planes[1].data_x = 0;
planes[1].raster =
(image3.Height * image3.BitsPerComponent + 7) >> 3;
code = gx_image_plane_data(info, planes, image3.Height);
/****** TEST code == 1 ******/
code = gx_image_end(info, true);
/****** TEST code >= 0 ******/
/* Display with 2-for-1 mask and image. */
image3.MaskDict.ImageMatrix.xx *= 2;
image3.MaskDict.ImageMatrix.yy *= 2;
image3.MaskDict.ImageMatrix.ty *= 2;
image3.MaskDict.Width *= 2;
image3.MaskDict.Height *= 2;
gs_translate(pgs, 1.5, 0.0);
code = gx_device_begin_typed_image(dev, (gs_imager_state *) pgs,
NULL, (gs_image_common_t *) & image3,
NULL, &dcolor, NULL, mem, &info);
/****** TEST code >= 0 ******/
planes[0].data = data3x2mask;
planes[0].raster = (image3.MaskDict.Width + 7) >> 3;
{
int i;
for (i = 0; i < H; ++i) {
planes[1].data = 0;
code = gx_image_plane_data(info, planes, 1);
planes[0].data += planes[0].raster;
/****** TEST code == 0 ******/
planes[1].data = data3 + i * planes[1].raster;
code = gx_image_plane_data(info, planes, 1);
planes[0].data += planes[0].raster;
/****** TEST code >= 0 ******/
}
}
/****** TEST code == 1 ******/
code = gx_image_end(info, true);
/****** TEST code >= 0 ******/
}
gs_grestore(pgs);
/* Test a chroma-keyed masked image. */
gs_gsave(pgs);
{
gs_image4_t image4;
const byte *data4 = data3;
gs_image4_t_init(&image4, gray_cs);
/* image */
image4.ImageMatrix.xx = W;
image4.ImageMatrix.yy = -H;
image4.ImageMatrix.ty = H;
/* data_image */
image4.Width = W;
image4.Height = H;
image4.BitsPerComponent = 8;
/* Display with a single mask color. */
gs_translate(pgs, 0.5, 0.5);
image4.MaskColor_is_range = false;
image4.MaskColor[0] = 0xcc;
do_image(image4, data4);
/* Display a second time with a color range. */
gs_translate(pgs, 1.5, 0.0);
image4.MaskColor_is_range = true;
image4.MaskColor[0] = 0x40;
image4.MaskColor[1] = 0x90;
do_image(image4, data4);
}
gs_grestore(pgs);
gs_free_object(mem, gray_cs, "test5 gray_cs");
#undef W
#undef H
#undef do_image
return 0;
}
