static int
gx_image1_mask_sget(gs_image_common_t *pic, stream *s,
gs_color_space *ignore_pcs)
{
gs_image1_t *const pim = (gs_image1_t *)pic;
int code;
uint control;
if ((code = sget_variable_uint(s, &control)) < 0)
return code;
gs_image_t_init_mask(pim, (control & MI_Decode) != 0);
if ((code = sget_variable_uint(s, (uint *)&pim->Width)) < 0 ||
(code = sget_variable_uint(s, (uint *)&pim->Height)) < 0
)
return code;
if (control & MI_ImageMatrix) {
if ((code = sget_matrix(s, &pim->ImageMatrix)) < 0)
return code;
} else
gx_image_matrix_set_default((gs_data_image_t *)pim);
pim->Interpolate = (control & MI_Interpolate) != 0;
pim->adjust = (control & MI_adjust) != 0;
pim->Alpha = (control >> MI_Alpha_SHIFT) & MI_Alpha_MASK;
pim->BitsPerComponent = ((control >> MI_BPC_SHIFT) & MI_BPC_MASK) + 1;
return 0;
}
/*
* Read generic pixel image parameters.
*/
int
gx_pixel_image_sget(gs_pixel_image_t *pim, stream *s,
gs_color_space *pcs)
{
uint control;
float decode_default_1 = 1;
int num_components, num_decode;
int i;
int code;
uint ignore;
if ((code = sget_variable_uint(s, &control)) < 0 ||
(code = sget_variable_uint(s, (uint *)&pim->Width)) < 0 ||
(code = sget_variable_uint(s, (uint *)&pim->Height)) < 0
)
return code;
if_debug3('b', "[b]get control=0x%x, Width=%d, Height=%d\n",
control, pim->Width, pim->Height);
if (control & PI_ImageMatrix) {
if ((code = sget_matrix(s, &pim->ImageMatrix)) < 0)
return code;
debug_b_print_matrix(pim);
} else
gx_image_matrix_set_default((gs_data_image_t *)pim);
pim->BitsPerComponent = ((control >> PI_BPC_SHIFT) & PI_BPC_MASK) + 1;
pim->format = (control >> PI_FORMAT_SHIFT) & PI_FORMAT_MASK;
pim->ColorSpace = pcs;
num_components = gs_color_space_num_components(pcs);
num_decode = num_components * 2;
if (gs_color_space_get_index(pcs) == gs_color_space_index_Indexed)
decode_default_1 = (float)pcs->params.indexed.hival;
if (control & PI_Decode) {
uint dflags = 0x10000;
float *dp = pim->Decode;
for (i = 0; i < num_decode; i += 2, dp += 2, dflags <<= 2) {
if (dflags >= 0x10000) {
dflags = sgetc(s) + 0x100;
if (dflags < 0x100)
return_error(gs_error_ioerror);
}
switch (dflags & 0xc0) {
case 0x00:
dp[0] = 0, dp[1] = DECODE_DEFAULT(i + 1, decode_default_1);
break;
case 0x40:
dp[0] = DECODE_DEFAULT(i + 1, decode_default_1), dp[1] = 0;
break;
case 0x80:
dp[0] = 0;
if (sgets(s, (byte *)(dp + 1), sizeof(float), &ignore) < 0)
return_error(gs_error_ioerror);
break;
case 0xc0:
if (sgets(s, (byte *)dp, sizeof(float) * 2, &ignore) < 0)
return_error(gs_error_ioerror);
break;
}
}
debug_b_print_decode(pim, num_decode);
} else {
for (i = 0; i < num_decode; ++i)
pim->Decode[i] = DECODE_DEFAULT(i, decode_default_1);
}
pim->Interpolate = (control & PI_Interpolate) != 0;
pim->CombineWithColor = (control & PI_CombineWithColor) != 0;
return control >> PI_BITS;
}