Differential D10105 Diff 32775 source/blender/imbuf/intern/openexr/openexr_api.cpp

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source/blender/imbuf/intern/openexr/openexr_api.cpp

Show First 20 Lines • Show All 318 Lines • ▼ Show 20 Lines	struct _RGBAZ {
half g;		half g;
half b;		half b;
half a;		half a;
half z;		half z;
};		};

using RGBAZ = _RGBAZ;		using RGBAZ = _RGBAZ;

		static half float_to_half_safe(const float value)
		{
		return half(clamp_f(value, -HALF_MAX, HALF_MAX));
		}

extern "C" {		extern "C" {

/**		/**
* Test presence of OpenEXR file.		* Test presence of OpenEXR file.
* \param mem: pointer to loaded OpenEXR bitstream		* \param mem: pointer to loaded OpenEXR bitstream
*/		*/
bool imb_is_a_openexr(const unsigned char *mem, const size_t size)		bool imb_is_a_openexr(const unsigned char *mem, const size_t size)
{		{
▲ Show 20 Lines • Show All 132 Lines • ▼ Show 20 Lines	try {
}		}
if (ibuf->rect_float) {		if (ibuf->rect_float) {
float *from;		float *from;

for (int i = ibuf->y - 1; i >= 0; i--) {		for (int i = ibuf->y - 1; i >= 0; i--) {
from = ibuf->rect_float + channels * i * width;		from = ibuf->rect_float + channels * i * width;

for (int j = ibuf->x; j > 0; j--) {		for (int j = ibuf->x; j > 0; j--) {
to->r = from[0];		to->r = float_to_half_safe(from[0]);
to->g = (channels >= 2) ? from[1] : from[0];		to->g = float_to_half_safe((channels >= 2) ? from[1] : from[0]);
to->b = (channels >= 3) ? from[2] : from[0];		to->b = float_to_half_safe((channels >= 3) ? from[2] : from[0]);
to->a = (channels >= 4) ? from[3] : 1.0f;		to->a = float_to_half_safe((channels >= 4) ? from[3] : 1.0f);
to++;		to++;
from += channels;		from += channels;
}		}
}		}
}		}
else {		else {
unsigned char *from;		unsigned char *from;

▲ Show 20 Lines • Show All 624 Lines • ▼ Show 20 Lines	if (data->channels.first) {
}		}

for (echan = (ExrChannel *)data->channels.first; echan; echan = echan->next) {		for (echan = (ExrChannel *)data->channels.first; echan; echan = echan->next) {
/* Writing starts from last scanline, stride negative. */		/* Writing starts from last scanline, stride negative. */
if (echan->use_half_float) {		if (echan->use_half_float) {
float *rect = echan->rect;		float *rect = echan->rect;
half *cur = current_rect_half;		half *cur = current_rect_half;
for (size_t i = 0; i < num_pixels; i++, cur++) {		for (size_t i = 0; i < num_pixels; i++, cur++) {
cur = rect[i echan->xstride];		cur = float_to_half_safe(rect[i echan->xstride]);
}		}
half rect_to_write = current_rect_half + (data->height - 1L) data->width;		half rect_to_write = current_rect_half + (data->height - 1L) data->width;
frameBuffer.insert(		frameBuffer.insert(
echan->name,		echan->name,
Slice(Imf::HALF, (char )rect_to_write, sizeof(half), -data->width sizeof(half)));		Slice(Imf::HALF, (char )rect_to_write, sizeof(half), -data->width sizeof(half)));
current_rect_half += num_pixels;		current_rect_half += num_pixels;
}		}
else {		else {
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