omap_lcdc: omap_ppm_save(): add error handling
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
This commit is contained in:
parent
8dc4cc7bb5
commit
d9c7ebb100
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@ -224,18 +224,24 @@ static void omap_update_display(void *opaque)
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omap_lcd->invalidate = 0;
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omap_lcd->invalidate = 0;
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}
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}
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static int omap_ppm_save(const char *filename, uint8_t *data,
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static void omap_ppm_save(const char *filename, uint8_t *data,
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int w, int h, int linesize)
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int w, int h, int linesize, Error **errp)
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{
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{
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FILE *f;
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FILE *f;
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uint8_t *d, *d1;
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uint8_t *d, *d1;
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unsigned int v;
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unsigned int v;
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int y, x, bpp;
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int ret, y, x, bpp;
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f = fopen(filename, "wb");
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f = fopen(filename, "wb");
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if (!f)
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if (!f) {
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return -1;
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error_setg(errp, "failed to open file '%s': %s", filename,
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fprintf(f, "P6\n%d %d\n%d\n", w, h, 255);
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strerror(errno));
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return;
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}
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ret = fprintf(f, "P6\n%d %d\n%d\n", w, h, 255);
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if (ret < 0) {
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goto write_err;
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}
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d1 = data;
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d1 = data;
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bpp = linesize / w;
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bpp = linesize / w;
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for (y = 0; y < h; y ++) {
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for (y = 0; y < h; y ++) {
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@ -244,24 +250,49 @@ static int omap_ppm_save(const char *filename, uint8_t *data,
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v = *(uint32_t *) d;
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v = *(uint32_t *) d;
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switch (bpp) {
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switch (bpp) {
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case 2:
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case 2:
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fputc((v >> 8) & 0xf8, f);
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ret = fputc((v >> 8) & 0xf8, f);
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fputc((v >> 3) & 0xfc, f);
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if (ret == EOF) {
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fputc((v << 3) & 0xf8, f);
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goto write_err;
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}
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ret = fputc((v >> 3) & 0xfc, f);
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if (ret == EOF) {
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goto write_err;
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}
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ret = fputc((v << 3) & 0xf8, f);
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if (ret == EOF) {
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goto write_err;
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}
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break;
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break;
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case 3:
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case 3:
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case 4:
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case 4:
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default:
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default:
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fputc((v >> 16) & 0xff, f);
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ret = fputc((v >> 16) & 0xff, f);
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fputc((v >> 8) & 0xff, f);
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if (ret == EOF) {
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fputc((v) & 0xff, f);
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goto write_err;
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}
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ret = fputc((v >> 8) & 0xff, f);
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if (ret == EOF) {
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goto write_err;
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}
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ret = fputc((v) & 0xff, f);
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if (ret == EOF) {
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goto write_err;
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}
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break;
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break;
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}
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}
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d += bpp;
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d += bpp;
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}
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}
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d1 += linesize;
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d1 += linesize;
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}
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}
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out:
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fclose(f);
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fclose(f);
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return 0;
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return;
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write_err:
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error_setg(errp, "failed to write to file '%s': %s", filename,
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strerror(errno));
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unlink(filename);
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goto out;
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}
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}
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static void omap_screen_dump(void *opaque, const char *filename, bool cswitch,
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static void omap_screen_dump(void *opaque, const char *filename, bool cswitch,
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@ -273,7 +304,7 @@ static void omap_screen_dump(void *opaque, const char *filename, bool cswitch,
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if (omap_lcd && ds_get_data(omap_lcd->state))
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if (omap_lcd && ds_get_data(omap_lcd->state))
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omap_ppm_save(filename, ds_get_data(omap_lcd->state),
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omap_ppm_save(filename, ds_get_data(omap_lcd->state),
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omap_lcd->width, omap_lcd->height,
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omap_lcd->width, omap_lcd->height,
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ds_get_linesize(omap_lcd->state));
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ds_get_linesize(omap_lcd->state), errp);
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}
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}
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static void omap_invalidate_display(void *opaque) {
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static void omap_invalidate_display(void *opaque) {
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