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try to detect when JPEG decoding fails - release

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philippe44
2022-09-11 10:01:52 -07:00
parent a2c94cf0b3
commit 97f8051e93
1 changed files with 5 additions and 1 deletions
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6
components/display/core/gds_image.c
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@@ -24,6 +24,7 @@ typedef struct {
const unsigned char *InData; // Pointer to jpeg data
int InPos; // Current position in jpeg data
int Width, Height;
uint32_t Pixels;
uint8_t Mode;
union {
void *OutData;
@@ -143,6 +144,8 @@ static unsigned OutHandlerDirect(JDEC *Decoder, void *Bitmap, JRECT *Frame) {
uint8_t *Pixels = (uint8_t*) Bitmap;
int Shift = 8 - Context->Depth;
Context->Pixels += (Frame->bottom - Frame->top + 1) * (Frame->right - Frame->left + 1); \
// decoded image is RGB888, shift only make sense for grayscale
if (Context->Mode == GDS_RGB888) {
OUTHANDLERDIRECT(Scaler888, 0);
@@ -418,10 +421,11 @@ bool GDS_DrawJPEG(struct GDS_Device* Device, uint8_t *Source, int x, int y, int
Context.XMin = x - Context.XOfs;
Context.YMin = y - Context.YOfs;
Context.Mode = Device->Mode;
Context.Pixels = 0;
// do decompress & draw
Res = jd_decomp(&Decoder, OutHandlerDirect, N);
if (Res == JDR_OK) {
if (Res == JDR_OK && Context.Pixels != (Context.Width + 1) * (Context.Height + 1)) {
Device->Dirty = true;
Ret = true;
} else {