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authorJosé Fonseca <jrfonseca@tungstengraphics.com>2008-09-08 22:21:33 +0900
committerJosé Fonseca <jrfonseca@tungstengraphics.com>2008-09-08 22:21:33 +0900
commit1da0a13389ce9709586058a8807c0c4120e520a2 (patch)
treebf9fe41fe88771efaaf027a9640e3e08bfb9230d /src/gallium/auxiliary
parent7cfc294c70e96269055341d327622774c9173b37 (diff)
util: Dump surfaces to BMP.
This allows quick inspection of surfaces in mass scale.
Diffstat (limited to 'src/gallium/auxiliary')
-rw-r--r--src/gallium/auxiliary/util/p_debug.c109
1 files changed, 109 insertions, 0 deletions
diff --git a/src/gallium/auxiliary/util/p_debug.c b/src/gallium/auxiliary/util/p_debug.c
index d56449e7ec..131e9b026c 100644
--- a/src/gallium/auxiliary/util/p_debug.c
+++ b/src/gallium/auxiliary/util/p_debug.c
@@ -55,7 +55,11 @@
#include "pipe/p_format.h"
#include "pipe/p_state.h"
#include "pipe/p_inlines.h"
+#include "util/u_memory.h"
#include "util/u_string.h"
+#include "util/u_stream.h"
+#include "util/u_math.h"
+#include "util/u_tile.h"
#ifdef PIPE_SUBSYSTEM_WINDOWS_DISPLAY
@@ -584,4 +588,109 @@ error2:
error1:
;
}
+
+
+#pragma pack(push,2)
+struct bmp_file_header {
+ uint16_t bfType;
+ uint32_t bfSize;
+ uint16_t bfReserved1;
+ uint16_t bfReserved2;
+ uint32_t bfOffBits;
+};
+#pragma pack(pop)
+
+struct bmp_info_header {
+ uint32_t biSize;
+ int32_t biWidth;
+ int32_t biHeight;
+ uint16_t biPlanes;
+ uint16_t biBitCount;
+ uint32_t biCompression;
+ uint32_t biSizeImage;
+ int32_t biXPelsPerMeter;
+ int32_t biYPelsPerMeter;
+ uint32_t biClrUsed;
+ uint32_t biClrImportant;
+};
+
+struct bmp_rgb_quad {
+ uint8_t rgbBlue;
+ uint8_t rgbGreen;
+ uint8_t rgbRed;
+ uint8_t rgbAlpha;
+};
+
+void
+debug_dump_surface_bmp(const char *filename,
+ struct pipe_surface *surface)
+{
+ struct util_stream *stream;
+ unsigned surface_usage;
+ struct bmp_file_header bmfh;
+ struct bmp_info_header bmih;
+ float *rgba;
+ unsigned x, y;
+
+ if (!surface)
+ goto error1;
+
+ rgba = MALLOC(surface->width*4*sizeof(float));
+ if(!rgba)
+ goto error1;
+
+ bmfh.bfType = 0x4d42;
+ bmfh.bfSize = 14 + 40 + surface->height*surface->width*4;
+ bmfh.bfReserved1 = 0;
+ bmfh.bfReserved2 = 0;
+ bmfh.bfOffBits = 14 + 40;
+
+ bmih.biSize = 40;
+ bmih.biWidth = surface->width;
+ bmih.biHeight = surface->height;
+ bmih.biPlanes = 1;
+ bmih.biBitCount = 32;
+ bmih.biCompression = 0;
+ bmih.biSizeImage = surface->height*surface->width*4;
+ bmih.biXPelsPerMeter = 0;
+ bmih.biYPelsPerMeter = 0;
+ bmih.biClrUsed = 0;
+ bmih.biClrImportant = 0;
+
+ stream = util_stream_create(filename);
+ if(!stream)
+ goto error2;
+
+ util_stream_write(stream, &bmfh, 14);
+ util_stream_write(stream, &bmih, 40);
+
+ /* XXX: force mappable surface */
+ surface_usage = surface->usage;
+ surface->usage |= PIPE_BUFFER_USAGE_CPU_READ;
+
+ y = surface->height;
+ while(y--) {
+ pipe_get_tile_rgba(surface,
+ 0, y, surface->width, 1,
+ rgba);
+ for(x = 0; x < surface->width; ++x)
+ {
+ struct bmp_rgb_quad pixel;
+ pixel.rgbRed = float_to_ubyte(rgba[x*4 + 0]);
+ pixel.rgbGreen = float_to_ubyte(rgba[x*4 + 1]);
+ pixel.rgbBlue = float_to_ubyte(rgba[x*4 + 2]);
+ pixel.rgbAlpha = float_to_ubyte(rgba[x*4 + 3]);
+ util_stream_write(stream, &pixel, 4);
+ }
+ }
+
+ surface->usage = surface_usage;
+
+ util_stream_close(stream);
+error2:
+ FREE(rgba);
+error1:
+ ;
+}
+
#endif