static int
test6(gs_state * pgs, gs_memory_t * mem)
{
gs_color_space *pcs;
gs_cie_abc *pabc;
gs_cie_render *pcrd;
static const gs_vector3 white_point =
{1, 1, 1};
static const gs_cie_render_proc3 encode_abc =
{
{render_abc, render_abc, render_abc}
};
int code;
gs_color_space *rgb_cs;
rgb_cs = gs_cspace_new_DeviceRGB(mem);
gs_scale(pgs, 150.0, 150.0);
gs_translate(pgs, 0.5, 0.5);
gs_setcolorspace(pgs, rgb_cs);
spectrum(pgs, 5);
gs_translate(pgs, 1.2, 0.0);
/* We must set the CRD before the color space. */
code = gs_cie_render1_build(&pcrd, mem, "test6");
if (code < 0)
return code;
gs_cie_render1_initialize(mem, pcrd, NULL, &white_point, NULL,
NULL, NULL, NULL,
NULL, NULL, NULL,
NULL, &encode_abc, NULL,
NULL);
gs_setcolorrendering(pgs, pcrd);
gs_cspace_build_CIEABC(&pcs, NULL, mem);
/* There should be an API for initializing CIE color spaces too.... */
pabc = pcs->params.abc;
pabc->common.points.WhitePoint = white_point;
gs_cie_abc_complete(pabc);
/* End of initializing the color space. */
gs_setcolorspace(pgs, pcs);
spectrum(pgs, 5);
gs_free_object(mem, rgb_cs, "test6 rgb_cs");
return 0;
}
static int
pl_build_crd(gs_state *pgs)
{
int code;
/* nothing to do */
if ( pl_pcrd_built == true )
return gs_setcolorrendering(pgs, pl_pcrd);
code = gs_cie_render1_build(&pl_pcrd, gs_state_memory(pgs), "build_crd");
if ( code < 0 )
return code;
pl_pcrd_built = true;
if ( pl_read_device_CRD(pl_pcrd, pgs) ) {
dprintf("CRD initialized from device\n");
return 0;
}
code = gs_cie_render1_initialize(pgs->memory,
pl_pcrd,
NULL,
&pl_WhitePoint,
&pl_BlackPoint,
&pl_MatrixPQR,
&pl_RangePQR,
&pl_TransformPQR,
&pl_MatrixCRDLMN,
NULL, /* EncodeLMN */
NULL, /* RangeLMN */
NULL, /* MatrixABC */
&pl_EncodeABC_procs,
NULL,
NULL);
if ( code < 0 )
return code; /* should not fail */
code = gs_setcolorrendering(pgs, pl_pcrd);
return code;
}
/*
* Implement get_params for a sample device CRD. A useful convention,
* for devices that can provide more than one CRD, is to have a settable
* parameter CRDName, which gives the name of the CRD in use. This sample
* code provides a constant CRDName: making it settable is left as an
* exercise to the reader.
*/
int
sample_device_crd_get_params(gx_device *pdev, gs_param_list *plist,
const char *crd_param_name)
{
int ecode = 0;
if (param_requested(plist, "CRDName") > 0) {
gs_param_string cns;
int code;
cns.data = (const byte *)crd_param_name;
cns.size = strlen(crd_param_name);
cns.persistent = true;
code = param_write_string(plist, "CRDName", &cns);
if (code < 0)
ecode = code;
}
if (param_requested(plist, crd_param_name) > 0) {
gs_cie_render *pcrd;
int code = gs_cie_render1_build(&pcrd, pdev->memory,
"sample_device_crd_get_params");
if (code >= 0) {
gs_cie_transform_proc3 tpqr;
tpqr = bit_TransformPQR;
tpqr.driver_name = pdev->dname;
code = gs_cie_render1_initialize(pdev->memory, pcrd, NULL,
&bit_WhitePoint, NULL /*BlackPoint*/,
NULL /*MatrixPQR*/, &bit_RangePQR, &tpqr,
NULL /*MatrixLMN*/, &bit_EncodeLMN, &bit_RangeLMN,
&bit_MatrixABC, &bit_EncodeABC, NULL /*RangeABC*/,
&bit_RenderTable);
if (code >= 0) {
code = param_write_cie_render1(plist, crd_param_name, pcrd,
pdev->memory);
}
rc_decrement(pcrd, "sample_device_crd_get_params"); /* release */
}
if (code < 0)
ecode = code;
}
if (param_requested(plist, bit_TransformPQR.proc_name) > 0) {
/*
* We definitely do not recommend the following use of a static
* to hold the address: this is a shortcut.
*/
gs_cie_transform_proc my_proc = bit_TransformPQR_proc;
byte *my_addr = gs_alloc_string(pdev->memory, sizeof(my_proc),
"sd_crd_get_params(proc)");
int code;
if (my_addr == 0)
code = gs_note_error(gs_error_VMerror);
else {
gs_param_string as;
memcpy(my_addr, &my_proc, sizeof(my_proc));
as.data = my_addr;
as.size = sizeof(my_proc);
as.persistent = true;
code = param_write_string(plist, bit_TransformPQR.proc_name, &as);
}
if (code < 0)
ecode = code;
}
return ecode;
}
