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fixes the off by one errors in examples/screenshot

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The inverse loop iterations for the transformed outputs had an off by
one error, iterating 1 based, not 0 based. This commit fixes that.
This commit is contained in:
Markus Ongyerth 2018-02-01 21:36:14 +01:00
parent 3a404e4f8d
commit cd925f496c
1 changed files with 6 additions and 6 deletions
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12
examples/screenshot.c
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@ -178,7 +178,7 @@ static void write_image(const char *filename, int width, int height) {
for (int i = 0; i < output->height; ++i) { for (int i = 0; i < output->height; ++i) {
for (int j = 0; j < output->width; ++j) { for (int j = 0; j < output->width; ++j) {
dst[i * width + j] = dst[i * width + j] =
src[i * output->width + output->width - j]; src[i * output->width + output->width - 1 - j];
} }
} }
break; break;
@ -186,7 +186,7 @@ static void write_image(const char *filename, int width, int height) {
for (int i = 0; i < output->width; ++i) { for (int i = 0; i < output->width; ++i) {
for (int j = 0; j < output->height; ++j) { for (int j = 0; j < output->height; ++j) {
dst[i * width + j] = dst[i * width + j] =
src[j * output->width + output->width - i]; src[j * output->width + output->width - 1 - i];
} }
} }
break; break;
@ -194,7 +194,7 @@ static void write_image(const char *filename, int width, int height) {
for (int i = 0; i < output->width; ++i) { for (int i = 0; i < output->width; ++i) {
for (int j = 0; j < output->height; ++j) { for (int j = 0; j < output->height; ++j) {
dst[i * width + j] = dst[i * width + j] =
src[(output->height - j) * output->width + output->width - i]; src[(output->height - 1 - j) * output->width + output->width - 1 - i];
} }
} }
break; break;
@ -202,7 +202,7 @@ static void write_image(const char *filename, int width, int height) {
for (int i = 0; i < output->height; ++i) { for (int i = 0; i < output->height; ++i) {
for (int j = 0; j < output->width; ++j) { for (int j = 0; j < output->width; ++j) {
dst[i * width + j] = dst[i * width + j] =
src[(output->height - i) * output->width + output->width - j]; src[(output->height - 1 - i) * output->width + output->width - 1 - j];
} }
} }
break; break;
@ -210,7 +210,7 @@ static void write_image(const char *filename, int width, int height) {
for (int i = 0; i < output->height; ++i) { for (int i = 0; i < output->height; ++i) {
for (int j = 0; j < output->width; ++j) { for (int j = 0; j < output->width; ++j) {
dst[i * width + j] = dst[i * width + j] =
src[(output->height - i) * output->width + j]; src[(output->height - 1 - i) * output->width + j];
} }
} }
break; break;
@ -218,7 +218,7 @@ static void write_image(const char *filename, int width, int height) {
for (int i = 0; i < output->width; ++i) { for (int i = 0; i < output->width; ++i) {
for (int j = 0; j < output->height; ++j) { for (int j = 0; j < output->height; ++j) {
dst[i * width + j] = dst[i * width + j] =
src[(output->height - j) * output->width + i]; src[(output->height - 1 - j) * output->width + i];
} }
} }
break; break;