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Hardware JPEG decoder #4576

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merged 5 commits into from
Feb 11, 2025
Merged

Hardware JPEG decoder #4576

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fe2098c
refactor(core): improve dma2d driver init/deinit
cepetr Feb 11, 2025
2c88bbb
chore(core): remove unused code
cepetr Feb 11, 2025
9b57b18
feat(core): introduce hardware jpeg decoder
cepetr Feb 11, 2025
a444573
feat(core): implement rgba8888 canvas blur
cepetr Feb 11, 2025
e39deba
feat(core): add simple downscaling for bitmap copy ops
cepetr Feb 11, 2025
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9 changes: 6 additions & 3 deletions core/embed/gfx/bitblt/dma2d_bitblt.h
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Original file line number Diff line number Diff line change
Expand Up @@ -17,8 +17,7 @@
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/

#ifndef TREZORHAL_DMA2D_BITBLT_H
#define TREZORHAL_DMA2D_BITBLT_H
#pragma once

#include <gfx/gfx_bitblt.h>

Expand Down Expand Up @@ -50,4 +49,8 @@ bool dma2d_rgba8888_copy_rgba8888(const gfx_bitblt_t* bb);
bool dma2d_rgba8888_blend_mono4(const gfx_bitblt_t* bb);
bool dma2d_rgba8888_blend_mono8(const gfx_bitblt_t* bb);

#endif // TREZORHAL_DMA2D_BITBLT_H
#ifdef USE_HW_JPEG_DECODER
bool dma2d_rgba8888_copy_ycbcr420(const gfx_bitblt_t* bb);
bool dma2d_rgba8888_copy_ycbcr422(const gfx_bitblt_t* bb);
bool dma2d_rgba8888_copy_ycbcr444(const gfx_bitblt_t* bb);
#endif
4 changes: 2 additions & 2 deletions core/embed/gfx/bitblt/gfx_bitblt_rgba8888.c
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Expand Up @@ -125,10 +125,10 @@ void gfx_rgba8888_copy_rgba8888(const gfx_bitblt_t* bb) {

while (height-- > 0) {
for (int x = 0; x < bb->width; x++) {
dst_ptr[x] = src_ptr[x];
dst_ptr[x] = src_ptr[x << bb->src_downscale];
}
dst_ptr += bb->dst_stride / sizeof(*dst_ptr);
src_ptr += bb->src_stride / sizeof(*src_ptr);
src_ptr += (bb->src_stride / sizeof(*src_ptr)) << bb->src_downscale;
}
}
}
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