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util: add debug_dump_ubyte_rgba_bmp()

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Like debug_dump_float_rgba_bmp() but takes ubyte values.

Reviewed-by: Charmaine Lee <charmainel@vmware.com>
This commit is contained in:
Brian Paul 2016-01-05 13:03:04 -07:00
parent f04d7439a0
commit 95d412181d
2 changed files with 63 additions and 0 deletions
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59
src/gallium/auxiliary/util/u_debug.c
View file

@ -727,6 +727,65 @@ error1:
;
}
void
debug_dump_ubyte_rgba_bmp(const char *filename,
unsigned width, unsigned height,
const ubyte *rgba, unsigned stride)
{
FILE *stream;
struct bmp_file_header bmfh;
struct bmp_info_header bmih;
unsigned x, y;
assert(rgba);
if(!rgba)
goto error1;
bmfh.bfType = 0x4d42;
bmfh.bfSize = 14 + 40 + height*width*4;
bmfh.bfReserved1 = 0;
bmfh.bfReserved2 = 0;
bmfh.bfOffBits = 14 + 40;
bmih.biSize = 40;
bmih.biWidth = width;
bmih.biHeight = height;
bmih.biPlanes = 1;
bmih.biBitCount = 32;
bmih.biCompression = 0;
bmih.biSizeImage = height*width*4;
bmih.biXPelsPerMeter = 0;
bmih.biYPelsPerMeter = 0;
bmih.biClrUsed = 0;
bmih.biClrImportant = 0;
stream = fopen(filename, "wb");
assert(stream);
if(!stream)
goto error1;
fwrite(&bmfh, 14, 1, stream);
fwrite(&bmih, 40, 1, stream);
y = height;
while(y--) {
const ubyte *ptr = rgba + (stride * y * 4);
for(x = 0; x < width; ++x)
{
struct bmp_rgb_quad pixel;
pixel.rgbRed = ptr[x*4 + 0];
pixel.rgbGreen = ptr[x*4 + 1];
pixel.rgbBlue = ptr[x*4 + 2];
pixel.rgbAlpha = ptr[x*4 + 3];
fwrite(&pixel, 1, 4, stream);
}
}
fclose(stream);
error1:
;
}
/**
* Print PIPE_TRANSFER_x flags with a message.

4
src/gallium/auxiliary/util/u_debug.h
View file

@ -490,12 +490,16 @@ void debug_dump_transfer_bmp(struct pipe_context *pipe,
void debug_dump_float_rgba_bmp(const char *filename,
unsigned width, unsigned height,
float *rgba, unsigned stride);
void debug_dump_ubyte_rgba_bmp(const char *filename,
unsigned width, unsigned height,
const ubyte *rgba, unsigned stride);
#else
#define debug_dump_image(prefix, format, cpp, width, height, stride, data) ((void)0)
#define debug_dump_surface(pipe, prefix, surface) ((void)0)
#define debug_dump_surface_bmp(pipe, filename, surface) ((void)0)
#define debug_dump_transfer_bmp(filename, transfer, ptr) ((void)0)
#define debug_dump_float_rgba_bmp(filename, width, height, rgba, stride) ((void)0)
#define debug_dump_ubyte_rgba_bmp(filename, width, height, rgba, stride) ((void)0)
#endif