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LibGfx/JPEG: Convert some west-consts to east-consts

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Lucas CHOLLET 2023-06-23 00:17:08 -04:00 committed by Sam Atkins
parent af14ed6b2e
commit 0ef61ab895
Notes: sideshowbarker 2024-07-17 01:46:43 +09:00 
Author: https://github.com/LucasChollet
Commit: https://github.com/SerenityOS/serenity/commit/0ef61ab895
Pull-request: https://github.com/SerenityOS/serenity/pull/19574
1 changed files with 11 additions and 11 deletions
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22
Userland/Libraries/LibGfx/ImageFormats/JPEGLoader.cpp
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@ -1562,7 +1562,7 @@ static void ycbcr_to_rgb(JPEGLoadingContext const& context, Vector<Macroblock>&
// 7 - Conversion to and from RGB
for (u32 vcursor = 0; vcursor < context.mblock_meta.vcount; vcursor += context.vsample_factor) {
for (u32 hcursor = 0; hcursor < context.mblock_meta.hcount; hcursor += context.hsample_factor) {
const u32 chroma_block_index = vcursor * context.mblock_meta.hpadded_count + hcursor;
u32 const chroma_block_index = vcursor * context.mblock_meta.hpadded_count + hcursor;
Macroblock const& chroma = macroblocks[chroma_block_index];
// Overflows are intentional.
for (u8 vfactor_i = context.vsample_factor - 1; vfactor_i < context.vsample_factor; --vfactor_i) {
@ -1573,10 +1573,10 @@ static void ycbcr_to_rgb(JPEGLoadingContext const& context, Vector<Macroblock>&
auto* cr = macroblocks[macroblock_index].cr;
for (u8 i = 7; i < 8; --i) {
for (u8 j = 7; j < 8; --j) {
const u8 pixel = i * 8 + j;
const u32 chroma_pxrow = (i / context.vsample_factor) + 4 * vfactor_i;
const u32 chroma_pxcol = (j / context.hsample_factor) + 4 * hfactor_i;
const u32 chroma_pixel = chroma_pxrow * 8 + chroma_pxcol;
u8 const pixel = i * 8 + j;
u32 const chroma_pxrow = (i / context.vsample_factor) + 4 * vfactor_i;
u32 const chroma_pxcol = (j / context.hsample_factor) + 4 * hfactor_i;
u32 const chroma_pixel = chroma_pxrow * 8 + chroma_pxcol;
int r = y[pixel] + 1.402f * (chroma.cr[chroma_pixel] - 128);
int g = y[pixel] - 0.3441f * (chroma.cb[chroma_pixel] - 128) - 0.7141f * (chroma.cr[chroma_pixel] - 128);
int b = y[pixel] + 1.772f * (chroma.cb[chroma_pixel] - 128);
@ -1738,14 +1738,14 @@ static ErrorOr<void> compose_bitmap(JPEGLoadingContext& context, Vector<Macroblo
context.bitmap = TRY(Bitmap::create(BitmapFormat::BGRx8888, { context.frame.width, context.frame.height }));
for (u32 y = context.frame.height - 1; y < context.frame.height; y--) {
const u32 block_row = y / 8;
const u32 pixel_row = y % 8;
u32 const block_row = y / 8;
u32 const pixel_row = y % 8;
for (u32 x = 0; x < context.frame.width; x++) {
const u32 block_column = x / 8;
u32 const block_column = x / 8;
auto& block = macroblocks[block_row * context.mblock_meta.hpadded_count + block_column];
const u32 pixel_column = x % 8;
const u32 pixel_index = pixel_row * 8 + pixel_column;
const Color color { (u8)block.y[pixel_index], (u8)block.cb[pixel_index], (u8)block.cr[pixel_index] };
u32 const pixel_column = x % 8;
u32 const pixel_index = pixel_row * 8 + pixel_column;
Color const color { (u8)block.y[pixel_index], (u8)block.cb[pixel_index], (u8)block.cr[pixel_index] };
context.bitmap->set_pixel(x, y, color);
}
}