summaryrefslogtreecommitdiff
path: root/indra/llimage
diff options
context:
space:
mode:
Diffstat (limited to 'indra/llimage')
-rw-r--r--indra/llimage/llimage.h42
-rw-r--r--indra/llimage/llimagefilter.cpp114
-rw-r--r--indra/llimage/llimagej2c.cpp28
3 files changed, 89 insertions, 95 deletions
diff --git a/indra/llimage/llimage.h b/indra/llimage/llimage.h
index 42eecbb97c..8b966b8ea3 100644
--- a/indra/llimage/llimage.h
+++ b/indra/llimage/llimage.h
@@ -32,37 +32,37 @@
#include "llpointer.h"
#include "lltrace.h"
-const S32 MIN_IMAGE_MIP = 2; // 4x4, only used for expand/contract power of 2
-const S32 MAX_IMAGE_MIP = 12; // 4096x4096
+constexpr S32 MIN_IMAGE_MIP = 2; // 4x4, only used for expand/contract power of 2
+constexpr S32 MAX_IMAGE_MIP = 12; // 4096x4096
// *TODO : Use MAX_IMAGE_MIP as max discard level and modify j2c management so that the number
// of levels is read from the header's file, not inferred from its size.
-const S32 MAX_DISCARD_LEVEL = 5;
+constexpr S32 MAX_DISCARD_LEVEL = 5;
// JPEG2000 size constraints
// Those are declared here as they are germane to other image constraints used in the viewer
// and declared right here. Some come from the JPEG2000 spec, some conventions specific to SL.
-const S32 MAX_DECOMPOSITION_LEVELS = 32; // Number of decomposition levels cannot exceed 32 according to jpeg2000 spec
-const S32 MIN_DECOMPOSITION_LEVELS = 5; // the SL viewer will *crash* trying to decode images with fewer than 5 decomposition levels (unless image is small that is)
-const S32 MAX_PRECINCT_SIZE = 4096; // No reason to be bigger than MAX_IMAGE_SIZE
-const S32 MIN_PRECINCT_SIZE = 4; // Can't be smaller than MIN_BLOCK_SIZE
-const S32 MAX_BLOCK_SIZE = 64; // Max total block size is 4096, hence 64x64 when using square blocks
-const S32 MIN_BLOCK_SIZE = 4; // Min block dim is 4 according to jpeg2000 spec
-const S32 MIN_LAYER_SIZE = 2000; // Size of the first quality layer (after header). Must be > to FIRST_PACKET_SIZE!!
-const S32 MAX_NB_LAYERS = 64; // Max number of layers we'll entertain in SL (practical limit)
-
-const S32 MIN_IMAGE_SIZE = (1<<MIN_IMAGE_MIP); // 4, only used for expand/contract power of 2
-const S32 MAX_IMAGE_SIZE = (1<<MAX_IMAGE_MIP); // 4096
-const S32 MIN_IMAGE_AREA = MIN_IMAGE_SIZE * MIN_IMAGE_SIZE;
-const S32 MAX_IMAGE_AREA = MAX_IMAGE_SIZE * MAX_IMAGE_SIZE;
-const S32 MAX_IMAGE_COMPONENTS = 8;
-const S32 MAX_IMAGE_DATA_SIZE = MAX_IMAGE_AREA * MAX_IMAGE_COMPONENTS; //4096 * 4096 * 8 = 128 MB
+constexpr S32 MAX_DECOMPOSITION_LEVELS = 32; // Number of decomposition levels cannot exceed 32 according to jpeg2000 spec
+constexpr S32 MIN_DECOMPOSITION_LEVELS = 5; // the SL viewer will *crash* trying to decode images with fewer than 5 decomposition levels (unless image is small that is)
+constexpr S32 MAX_PRECINCT_SIZE = 4096; // No reason to be bigger than MAX_IMAGE_SIZE
+constexpr S32 MIN_PRECINCT_SIZE = 4; // Can't be smaller than MIN_BLOCK_SIZE
+constexpr S32 MAX_BLOCK_SIZE = 64; // Max total block size is 4096, hence 64x64 when using square blocks
+constexpr S32 MIN_BLOCK_SIZE = 4; // Min block dim is 4 according to jpeg2000 spec
+constexpr S32 MIN_LAYER_SIZE = 2000; // Size of the first quality layer (after header). Must be > to FIRST_PACKET_SIZE!!
+constexpr S32 MAX_NB_LAYERS = 64; // Max number of layers we'll entertain in SL (practical limit)
+
+constexpr S32 MIN_IMAGE_SIZE = (1<<MIN_IMAGE_MIP); // 4, only used for expand/contract power of 2
+constexpr S32 MAX_IMAGE_SIZE = (1<<MAX_IMAGE_MIP); // 4096
+constexpr S32 MIN_IMAGE_AREA = MIN_IMAGE_SIZE * MIN_IMAGE_SIZE;
+constexpr S32 MAX_IMAGE_AREA = MAX_IMAGE_SIZE * MAX_IMAGE_SIZE;
+constexpr S32 MAX_IMAGE_COMPONENTS = 8;
+constexpr S32 MAX_IMAGE_DATA_SIZE = MAX_IMAGE_AREA * MAX_IMAGE_COMPONENTS; //4096 * 4096 * 8 = 128 MB
// Note! These CANNOT be changed without modifying simulator code
// *TODO: change both to 1024 when SIM texture fetching is deprecated
-const S32 FIRST_PACKET_SIZE = 600;
-const S32 MAX_IMG_PACKET_SIZE = 1000;
-const S32 HTTP_PACKET_SIZE = 1496;
+constexpr S32 FIRST_PACKET_SIZE = 600;
+constexpr S32 MAX_IMG_PACKET_SIZE = 1000;
+constexpr S32 HTTP_PACKET_SIZE = 1496;
// Base classes for images.
// There are two major parts for the image:
diff --git a/indra/llimage/llimagefilter.cpp b/indra/llimage/llimagefilter.cpp
index 0d15906afd..bfcb1f76de 100644
--- a/indra/llimage/llimagefilter.cpp
+++ b/indra/llimage/llimagefilter.cpp
@@ -253,7 +253,7 @@ void LLImageFilter::executeFilter(LLPointer<LLImageRaw> raw_image)
bool abs_value = (mFilterData[i][index++].asReal() > 0.0);
for (S32 k = 0; k < NUM_VALUES_IN_MAT3; k++)
for (S32 j = 0; j < NUM_VALUES_IN_MAT3; j++)
- kernel.mMatrix[k][j] = mFilterData[i][index++].asReal();
+ kernel.mMatrix[k][j] = (F32)mFilterData[i][index++].asReal();
convolve(kernel,normalize,abs_value);
}
else if (filter_name == "colortransform")
@@ -262,7 +262,7 @@ void LLImageFilter::executeFilter(LLPointer<LLImageRaw> raw_image)
S32 index = 1;
for (S32 k = 0; k < NUM_VALUES_IN_MAT3; k++)
for (S32 j = 0; j < NUM_VALUES_IN_MAT3; j++)
- transform.mMatrix[k][j] = mFilterData[i][index++].asReal();
+ transform.mMatrix[k][j] = (F32)mFilterData[i][index++].asReal();
transform.transpose();
colorTransform(transform);
}
@@ -279,32 +279,32 @@ void LLImageFilter::executeFilter(LLPointer<LLImageRaw> raw_image)
void LLImageFilter::blendStencil(F32 alpha, U8* pixel, U8 red, U8 green, U8 blue)
{
- F32 inv_alpha = 1.0 - alpha;
+ F32 inv_alpha = 1.0f - alpha;
switch (mStencilBlendMode)
{
case STENCIL_BLEND_MODE_BLEND:
// Classic blend of incoming color with the background image
- pixel[VRED] = inv_alpha * pixel[VRED] + alpha * red;
- pixel[VGREEN] = inv_alpha * pixel[VGREEN] + alpha * green;
- pixel[VBLUE] = inv_alpha * pixel[VBLUE] + alpha * blue;
+ pixel[VRED] = (U8)(inv_alpha * pixel[VRED] + alpha * red);
+ pixel[VGREEN] = (U8)(inv_alpha * pixel[VGREEN] + alpha * green);
+ pixel[VBLUE] = (U8)(inv_alpha * pixel[VBLUE] + alpha * blue);
break;
case STENCIL_BLEND_MODE_ADD:
// Add incoming color to the background image
- pixel[VRED] = llclampb(pixel[VRED] + alpha * red);
- pixel[VGREEN] = llclampb(pixel[VGREEN] + alpha * green);
- pixel[VBLUE] = llclampb(pixel[VBLUE] + alpha * blue);
+ pixel[VRED] = (U8)llclampb(pixel[VRED] + alpha * red);
+ pixel[VGREEN] = (U8)llclampb(pixel[VGREEN] + alpha * green);
+ pixel[VBLUE] = (U8)llclampb(pixel[VBLUE] + alpha * blue);
break;
case STENCIL_BLEND_MODE_ABACK:
// Add back background image to the incoming color
- pixel[VRED] = llclampb(inv_alpha * pixel[VRED] + red);
- pixel[VGREEN] = llclampb(inv_alpha * pixel[VGREEN] + green);
- pixel[VBLUE] = llclampb(inv_alpha * pixel[VBLUE] + blue);
+ pixel[VRED] = (U8)llclampb(inv_alpha * pixel[VRED] + red);
+ pixel[VGREEN] = (U8)llclampb(inv_alpha * pixel[VGREEN] + green);
+ pixel[VBLUE] = (U8)llclampb(inv_alpha * pixel[VBLUE] + blue);
break;
case STENCIL_BLEND_MODE_FADE:
// Fade incoming color to black
- pixel[VRED] = alpha * red;
- pixel[VGREEN] = alpha * green;
- pixel[VBLUE] = alpha * blue;
+ pixel[VRED] = (U8)(alpha * red);
+ pixel[VGREEN] = (U8)(alpha * green);
+ pixel[VBLUE] = (U8)(alpha * blue);
break;
}
}
@@ -348,7 +348,7 @@ void LLImageFilter::colorTransform(const LLMatrix3 &transform)
dst.clamp(0.0f,255.0f);
// Blend result
- blendStencil(getStencilAlpha(i,j), dst_data, dst.mV[VRED], dst.mV[VGREEN], dst.mV[VBLUE]);
+ blendStencil(getStencilAlpha(i,j), dst_data, (U8)dst.mV[VRED], (U8)dst.mV[VGREEN], (U8)dst.mV[VBLUE]);
dst_data += components;
}
}
@@ -463,7 +463,7 @@ void LLImageFilter::convolve(const LLMatrix3 &kernel, bool normalize, bool abs_v
dst.clamp(0.0f,255.0f);
// Blend result
- blendStencil(getStencilAlpha(i,j), dst_data, dst.mV[VRED], dst.mV[VGREEN], dst.mV[VBLUE]);
+ blendStencil(getStencilAlpha(i,j), dst_data, (U8)dst.mV[VRED], (U8)dst.mV[VGREEN], (U8)dst.mV[VBLUE]);
// Next pixel
dst_data += components;
@@ -499,7 +499,7 @@ void LLImageFilter::filterScreen(EScreenMode mode, const F32 wave_length, const
S32 width = mImage->getWidth();
S32 height = mImage->getHeight();
- F32 wave_length_pixels = wave_length * (F32)(height) / 2.0;
+ F32 wave_length_pixels = wave_length * (F32)(height) / 2.0f;
F32 sin = sinf(angle*DEG_TO_RAD);
F32 cos = cosf(angle*DEG_TO_RAD);
@@ -507,7 +507,7 @@ void LLImageFilter::filterScreen(EScreenMode mode, const F32 wave_length, const
U8 gamma[256];
for (S32 i = 0; i < 256; i++)
{
- F32 gamma_i = llclampf((float)(powf((float)(i)/255.0,1.0/4.0)));
+ F32 gamma_i = llclampf((float)(powf((float)(i)/255.0f,1.0f/4.0f)));
gamma[i] = (U8)(255.0 * gamma_i);
}
@@ -525,11 +525,11 @@ void LLImageFilter::filterScreen(EScreenMode mode, const F32 wave_length, const
case SCREEN_MODE_2DSINE:
di = cos*i + sin*j;
dj = -sin*i + cos*j;
- value = (sinf(2*F_PI*di/wave_length_pixels)*sinf(2*F_PI*dj/wave_length_pixels)+1.0)*255.0/2.0;
+ value = (sinf(2*F_PI*di/wave_length_pixels)*sinf(2*F_PI*dj/wave_length_pixels)+1.0f)*255.0f/2.0f;
break;
case SCREEN_MODE_LINE:
dj = sin*i - cos*j;
- value = (sinf(2*F_PI*dj/wave_length_pixels)+1.0)*255.0/2.0;
+ value = (sinf(2*F_PI*dj/wave_length_pixels)+1.0f)*255.0f/2.0f;
break;
}
U8 dst_value = (dst_data[VRED] >= (U8)(value) ? gamma[dst_data[VRED] - (U8)(value)] : 0);
@@ -556,16 +556,16 @@ void LLImageFilter::setStencil(EStencilShape shape, EStencilBlendMode mode, F32
mStencilCenterX = (S32)(mImage->getWidth() + params[0] * (F32)(mImage->getHeight()))/2;
mStencilCenterY = (S32)(mImage->getHeight() + params[1] * (F32)(mImage->getHeight()))/2;
mStencilWidth = (S32)(params[2] * (F32)(mImage->getHeight()))/2;
- mStencilGamma = (params[3] <= 0.0 ? 1.0 : params[3]);
+ mStencilGamma = (params[3] <= 0.0f ? 1.0f : params[3]);
- mStencilWavelength = (params[0] <= 0.0 ? 10.0 : params[0] * (F32)(mImage->getHeight()) / 2.0);
+ mStencilWavelength = (params[0] <= 0.0f ? 10.0f : params[0] * (F32)(mImage->getHeight()) / 2.0f);
mStencilSine = sinf(params[1]*DEG_TO_RAD);
mStencilCosine = cosf(params[1]*DEG_TO_RAD);
- mStencilStartX = ((F32)(mImage->getWidth()) + params[0] * (F32)(mImage->getHeight()))/2.0;
- mStencilStartY = ((F32)(mImage->getHeight()) + params[1] * (F32)(mImage->getHeight()))/2.0;
- F32 end_x = ((F32)(mImage->getWidth()) + params[2] * (F32)(mImage->getHeight()))/2.0;
- F32 end_y = ((F32)(mImage->getHeight()) + params[3] * (F32)(mImage->getHeight()))/2.0;
+ mStencilStartX = ((F32)(mImage->getWidth()) + params[0] * (F32)(mImage->getHeight()))/2.0f;
+ mStencilStartY = ((F32)(mImage->getHeight()) + params[1] * (F32)(mImage->getHeight()))/2.0f;
+ F32 end_x = ((F32)(mImage->getWidth()) + params[2] * (F32)(mImage->getHeight()))/2.0f;
+ F32 end_y = ((F32)(mImage->getHeight()) + params[3] * (F32)(mImage->getHeight()))/2.0f;
mStencilGradX = end_x - mStencilStartX;
mStencilGradY = end_y - mStencilStartY;
mStencilGradN = mStencilGradX*mStencilGradX + mStencilGradY*mStencilGradY;
@@ -578,14 +578,14 @@ F32 LLImageFilter::getStencilAlpha(S32 i, S32 j)
{
// alpha is a modified gaussian value, with a center and fading in a circular pattern toward the edges
// The gamma parameter controls the intensity of the drop down from alpha 1.0 (center) to 0.0
- F32 d_center_square = (i - mStencilCenterX)*(i - mStencilCenterX) + (j - mStencilCenterY)*(j - mStencilCenterY);
+ F32 d_center_square = (F32)((i - mStencilCenterX)*(i - mStencilCenterX) + (j - mStencilCenterY)*(j - mStencilCenterY));
alpha = powf(F_E, -(powf((d_center_square/(mStencilWidth*mStencilWidth)),mStencilGamma)/2.0f));
}
else if (mStencilShape == STENCIL_SHAPE_SCAN_LINES)
{
// alpha varies according to a squared sine function.
F32 d = mStencilSine*i - mStencilCosine*j;
- alpha = (sinf(2*F_PI*d/mStencilWavelength) > 0.0 ? 1.0 : 0.0);
+ alpha = (sinf(2*F_PI*d/mStencilWavelength) > 0.0f ? 1.0f : 0.0f);
}
else if (mStencilShape == STENCIL_SHAPE_GRADIENT)
{
@@ -756,11 +756,11 @@ void LLImageFilter::filterGamma(F32 gamma, const LLColor3& alpha)
for (S32 i = 0; i < 256; i++)
{
- F32 gamma_i = llclampf((float)(powf((float)(i)/255.0,1.0/gamma)));
+ F32 gamma_i = llclampf((float)(powf((float)(i)/255.0f,1.0f/gamma)));
// Blend in with alpha values
- gamma_red_lut[i] = (U8)((1.0 - alpha.mV[0]) * (float)(i) + alpha.mV[0] * 255.0 * gamma_i);
- gamma_green_lut[i] = (U8)((1.0 - alpha.mV[1]) * (float)(i) + alpha.mV[1] * 255.0 * gamma_i);
- gamma_blue_lut[i] = (U8)((1.0 - alpha.mV[2]) * (float)(i) + alpha.mV[2] * 255.0 * gamma_i);
+ gamma_red_lut[i] = (U8)((1.0f - alpha.mV[0]) * (float)(i) + alpha.mV[0] * 255.0f * gamma_i);
+ gamma_green_lut[i] = (U8)((1.0f - alpha.mV[1]) * (float)(i) + alpha.mV[1] * 255.0f * gamma_i);
+ gamma_blue_lut[i] = (U8)((1.0f - alpha.mV[2]) * (float)(i) + alpha.mV[2] * 255.0f * gamma_i);
}
colorCorrect(gamma_red_lut,gamma_green_lut,gamma_blue_lut);
@@ -808,23 +808,23 @@ void LLImageFilter::filterLinearize(F32 tail, const LLColor3& alpha)
{
U8 value_i = (i < min_v ? 0 : 255);
// Blend in with alpha values
- linear_red_lut[i] = (U8)((1.0 - alpha.mV[0]) * (float)(i) + alpha.mV[0] * value_i);
- linear_green_lut[i] = (U8)((1.0 - alpha.mV[1]) * (float)(i) + alpha.mV[1] * value_i);
- linear_blue_lut[i] = (U8)((1.0 - alpha.mV[2]) * (float)(i) + alpha.mV[2] * value_i);
+ linear_red_lut[i] = (U8)((1.0f - alpha.mV[0]) * (float)(i) + alpha.mV[0] * value_i);
+ linear_green_lut[i] = (U8)((1.0f - alpha.mV[1]) * (float)(i) + alpha.mV[1] * value_i);
+ linear_blue_lut[i] = (U8)((1.0f - alpha.mV[2]) * (float)(i) + alpha.mV[2] * value_i);
}
}
else
{
// Linearize between min and max
- F32 slope = 255.0 / (F32)(max_v - min_v);
+ F32 slope = 255.0f / (F32)(max_v - min_v);
F32 translate = -min_v * slope;
for (S32 i = 0; i < 256; i++)
{
U8 value_i = (U8)(llclampb((S32)(slope*i + translate)));
// Blend in with alpha values
- linear_red_lut[i] = (U8)((1.0 - alpha.mV[0]) * (float)(i) + alpha.mV[0] * value_i);
- linear_green_lut[i] = (U8)((1.0 - alpha.mV[1]) * (float)(i) + alpha.mV[1] * value_i);
- linear_blue_lut[i] = (U8)((1.0 - alpha.mV[2]) * (float)(i) + alpha.mV[2] * value_i);
+ linear_red_lut[i] = (U8)((1.0f - alpha.mV[0]) * (float)(i) + alpha.mV[0] * value_i);
+ linear_green_lut[i] = (U8)((1.0f - alpha.mV[1]) * (float)(i) + alpha.mV[1] * value_i);
+ linear_blue_lut[i] = (U8)((1.0f - alpha.mV[2]) * (float)(i) + alpha.mV[2] * value_i);
}
}
@@ -863,9 +863,9 @@ void LLImageFilter::filterEqualize(S32 nb_classes, const LLColor3& alpha)
for (S32 i = 0; i < 256; i++)
{
// Blend in current_value with alpha values
- equalize_red_lut[i] = (U8)((1.0 - alpha.mV[0]) * (float)(i) + alpha.mV[0] * current_value);
- equalize_green_lut[i] = (U8)((1.0 - alpha.mV[1]) * (float)(i) + alpha.mV[1] * current_value);
- equalize_blue_lut[i] = (U8)((1.0 - alpha.mV[2]) * (float)(i) + alpha.mV[2] * current_value);
+ equalize_red_lut[i] = (U8)((1.0f - alpha.mV[0]) * (float)(i) + alpha.mV[0] * current_value);
+ equalize_green_lut[i] = (U8)((1.0f - alpha.mV[1]) * (float)(i) + alpha.mV[1] * current_value);
+ equalize_blue_lut[i] = (U8)((1.0f - alpha.mV[2]) * (float)(i) + alpha.mV[2] * current_value);
if (cumulated_histo[i] >= current_count)
{
current_count += delta_count;
@@ -884,15 +884,15 @@ void LLImageFilter::filterColorize(const LLColor3& color, const LLColor3& alpha)
U8 green_lut[256];
U8 blue_lut[256];
- F32 red_composite = 255.0 * alpha.mV[0] * color.mV[0];
- F32 green_composite = 255.0 * alpha.mV[1] * color.mV[1];
- F32 blue_composite = 255.0 * alpha.mV[2] * color.mV[2];
+ F32 red_composite = 255.0f * alpha.mV[0] * color.mV[0];
+ F32 green_composite = 255.0f * alpha.mV[1] * color.mV[1];
+ F32 blue_composite = 255.0f * alpha.mV[2] * color.mV[2];
for (S32 i = 0; i < 256; i++)
{
- red_lut[i] = (U8)(llclampb((S32)((1.0 - alpha.mV[0]) * (F32)(i) + red_composite)));
- green_lut[i] = (U8)(llclampb((S32)((1.0 - alpha.mV[1]) * (F32)(i) + green_composite)));
- blue_lut[i] = (U8)(llclampb((S32)((1.0 - alpha.mV[2]) * (F32)(i) + blue_composite)));
+ red_lut[i] = (U8)(llclampb((S32)((1.0f - alpha.mV[0]) * (F32)(i) + red_composite)));
+ green_lut[i] = (U8)(llclampb((S32)((1.0f - alpha.mV[1]) * (F32)(i) + green_composite)));
+ blue_lut[i] = (U8)(llclampb((S32)((1.0f - alpha.mV[2]) * (F32)(i) + blue_composite)));
}
colorCorrect(red_lut,green_lut,blue_lut);
@@ -904,15 +904,15 @@ void LLImageFilter::filterContrast(F32 slope, const LLColor3& alpha)
U8 contrast_green_lut[256];
U8 contrast_blue_lut[256];
- F32 translate = 128.0 * (1.0 - slope);
+ F32 translate = 128.0f * (1.0f - slope);
for (S32 i = 0; i < 256; i++)
{
U8 value_i = (U8)(llclampb((S32)(slope*i + translate)));
// Blend in with alpha values
- contrast_red_lut[i] = (U8)((1.0 - alpha.mV[0]) * (float)(i) + alpha.mV[0] * value_i);
- contrast_green_lut[i] = (U8)((1.0 - alpha.mV[1]) * (float)(i) + alpha.mV[1] * value_i);
- contrast_blue_lut[i] = (U8)((1.0 - alpha.mV[2]) * (float)(i) + alpha.mV[2] * value_i);
+ contrast_red_lut[i] = (U8)((1.0f - alpha.mV[0]) * (float)(i) + alpha.mV[0] * value_i);
+ contrast_green_lut[i] = (U8)((1.0f - alpha.mV[1]) * (float)(i) + alpha.mV[1] * value_i);
+ contrast_blue_lut[i] = (U8)((1.0f - alpha.mV[2]) * (float)(i) + alpha.mV[2] * value_i);
}
colorCorrect(contrast_red_lut,contrast_green_lut,contrast_blue_lut);
@@ -924,15 +924,15 @@ void LLImageFilter::filterBrightness(F32 add, const LLColor3& alpha)
U8 brightness_green_lut[256];
U8 brightness_blue_lut[256];
- S32 add_value = (S32)(add * 255.0);
+ S32 add_value = (S32)(add * 255.0f);
for (S32 i = 0; i < 256; i++)
{
U8 value_i = (U8)(llclampb(i + add_value));
// Blend in with alpha values
- brightness_red_lut[i] = (U8)((1.0 - alpha.mV[0]) * (float)(i) + alpha.mV[0] * value_i);
- brightness_green_lut[i] = (U8)((1.0 - alpha.mV[1]) * (float)(i) + alpha.mV[1] * value_i);
- brightness_blue_lut[i] = (U8)((1.0 - alpha.mV[2]) * (float)(i) + alpha.mV[2] * value_i);
+ brightness_red_lut[i] = (U8)((1.0f - alpha.mV[0]) * (float)(i) + alpha.mV[0] * value_i);
+ brightness_green_lut[i] = (U8)((1.0f - alpha.mV[1]) * (float)(i) + alpha.mV[1] * value_i);
+ brightness_blue_lut[i] = (U8)((1.0f - alpha.mV[2]) * (float)(i) + alpha.mV[2] * value_i);
}
colorCorrect(brightness_red_lut,brightness_green_lut,brightness_blue_lut);
diff --git a/indra/llimage/llimagej2c.cpp b/indra/llimage/llimagej2c.cpp
index 0058b91b0f..42f3e92257 100644
--- a/indra/llimage/llimagej2c.cpp
+++ b/indra/llimage/llimagej2c.cpp
@@ -275,30 +275,24 @@ S32 LLImageJ2C::calcDataSizeJ2C(S32 w, S32 h, S32 comp, S32 discard_level, F32 r
// For details about the equation used here, see https://wiki.lindenlab.com/wiki/THX1138_KDU_Improvements#Byte_Range_Study
// Estimate the number of layers. This is consistent with what's done for j2c encoding in LLImageJ2CKDU::encodeImpl().
+ constexpr S32 precision = 8; // assumed bitrate per component channel, might change in future for HDR support
+ constexpr S32 max_components = 4; // assumed the file has four components; three color and alpha
S32 nb_layers = 1;
- S32 surface = w*h;
+ const S32 surface = w*h;
S32 s = 64*64;
+ S32 totalbytes = (S32)(s * max_components * precision * rate); // first level computed before loop
while (surface > s)
{
+ if (nb_layers <= (5 - discard_level))
+ totalbytes += (S32)(s * max_components * precision * rate);
nb_layers++;
s *= 4;
}
- F32 layer_factor = 3.0f * (7 - llclamp(nb_layers,1,6));
-
- // Compute w/pow(2,discard_level) and h/pow(2,discard_level)
- w >>= discard_level;
- h >>= discard_level;
- w = llmax(w, 1);
- h = llmax(h, 1);
-
- // Temporary: compute both new and old range and pick one according to the settings TextureNewByteRange
- // *TODO: Take the old code out once we have enough tests done
- S32 bytes;
- S32 new_bytes = (S32) (sqrt((F32)(w*h))*(F32)(comp)*rate*1000.f/layer_factor);
- S32 old_bytes = (S32)((F32)(w*h*comp)*rate);
- bytes = (LLImage::useNewByteRange() && (new_bytes < old_bytes) ? new_bytes : old_bytes);
- bytes = llmax(bytes, calcHeaderSizeJ2C());
- return bytes;
+
+ totalbytes /= 8; // to bytes
+ totalbytes += calcHeaderSizeJ2C(); // header
+
+ return totalbytes;
}
S32 LLImageJ2C::calcHeaderSize()
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-25 16:03:45 +0000