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annotate ppm.c @ 1337:d092c15246a3

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Initial stab at horizontal border when VDP test register layer selection is in effect for H40. Extended horizontal borders in Titancade scene and ninja escape scene mostly correct now
author Michael Pavone <pavone@retrodev.com>
date Sat, 29 Apr 2017 16:51:57 -0700
parents 5f65a16c23ff
children da2e06c42d16
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
1263
5f65a16c23ff Implement raw screenshot functionality requested in ticket:10
Michael Pavone <pavone@retrodev.com>
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1 #include <stdint.h>
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2 #include <stdio.h>
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3
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4 void save_ppm(FILE *f, uint32_t *buffer, uint32_t width, uint32_t height, uint32_t pitch)
5f65a16c23ff Implement raw screenshot functionality requested in ticket:10
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5 {
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6 fprintf(f, "P6\n%d %d\n255\n", width, height);
5f65a16c23ff Implement raw screenshot functionality requested in ticket:10
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7 for(uint32_t y = 0; y < height; y++)
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8 {
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9 uint32_t *line = buffer;
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10 for (uint32_t x = 0; x < width; x++, line++)
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11 {
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12 uint8_t buf[3] = {
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13 *line >> 16, //red
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14 *line >> 8, //green
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15 *line //blue
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16 };
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17 fwrite(buf, 1, sizeof(buf), f);
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18 }
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19 buffer = buffer + pitch / sizeof(uint32_t);
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20 }
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21 }