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Fix normalizing factor for SNORM formats

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Change-Id: I4febe3a557762b94c0c4445015c948d45a4390d2
This commit is contained in:
Dunajski, Bartosz
2018-02-02 13:46:54 +01:00
committed by sys_ocldev
parent 5167e3da69
commit 80eefc79f3
4 changed files with 95 additions and 8 deletions
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30
runtime/helpers/convert_color.h
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@@ -27,6 +27,22 @@
namespace OCLRT {
inline int32_t selectNormalizingFactor(const cl_channel_type &channelType) {
if (channelType == CL_UNORM_INT8) {
return 0xFF;
}
if (channelType == CL_SNORM_INT8) {
return 0x7F;
}
if (channelType == CL_UNORM_INT16) {
return 0xFFFF;
}
if (channelType == CL_SNORM_INT16) {
return 0x7fFF;
}
return 0;
}
inline void convertFillColor(const void *fillColor,
int32_t *iFillColor,
const cl_image_format &oldImageFormat,
@@ -64,12 +80,13 @@ inline void convertFillColor(const void *fillColor,
}
if (newImageFormat.image_channel_data_type == CL_UNSIGNED_INT8) {
if (oldImageFormat.image_channel_data_type == CL_UNORM_INT8) {
auto normalizingFactor = selectNormalizingFactor(oldImageFormat.image_channel_data_type);
if (normalizingFactor > 0) {
for (auto i = 0; i < 4; i++) {
if ((oldImageFormat.image_channel_order == CL_sRGBA || oldImageFormat.image_channel_order == CL_sBGRA) && i < 3) {
iFillColor[i] = static_cast<int32_t>(0xFF * fFillColor[i] + 0.5f);
iFillColor[i] = static_cast<int32_t>(normalizingFactor * fFillColor[i] + 0.5f);
} else {
iFillColor[i] = static_cast<int32_t>(0xFF * fFillColor[i]);
iFillColor[i] = static_cast<int32_t>(normalizingFactor * fFillColor[i]);
}
}
}
@@ -78,9 +95,10 @@ inline void convertFillColor(const void *fillColor,
iFillColor[i] = iFillColor[i] & 0xFF;
}
} else if (newImageFormat.image_channel_data_type == CL_UNSIGNED_INT16) {
if (oldImageFormat.image_channel_data_type == CL_UNORM_INT16) {
auto normalizingFactor = selectNormalizingFactor(oldImageFormat.image_channel_data_type);
if (normalizingFactor > 0) {
for (auto i = 0; i < 4; i++) {
iFillColor[i] = static_cast<int32_t>(0xFFFF * fFillColor[i]);
iFillColor[i] = static_cast<int32_t>(normalizingFactor * fFillColor[i]);
}
} else if (oldImageFormat.image_channel_data_type == CL_HALF_FLOAT) {
//float to half convert.
@@ -95,4 +113,4 @@ inline void convertFillColor(const void *fillColor,
}
}
}
}
} // namespace OCLRT