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Finalizing support for externally supplied elevation data (grayscale images)

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git-svn-id: svn://svn.code.sf.net/p/sc2/code/trunk@2079 8092fc87-c524-0410-9efc-e669fe64eaf9
This commit is contained in:
avolkov
2005-12-16 06:47:53 +00:00
parent e9ea191e4d
commit 754a14533f
1 changed files with 10 additions and 0 deletions
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sc2/src/sc2code/planets/plangen.c
+10
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@@ -1725,6 +1725,9 @@ GeneratePlanetMask (PPLANET_DESC pPlanetDesc, FRAME SurfDefFrame)
if (GetFrameCount (SurfDefFrame) > 1) if (GetFrameCount (SurfDefFrame) > 1)
{ // 2nd frame is elevation data { // 2nd frame is elevation data
int i;
BYTE* elev;
ElevFrame = SetAbsFrameIndex (SurfDefFrame, 1); ElevFrame = SetAbsFrameIndex (SurfDefFrame, 1);
if (GetFrameWidth (ElevFrame) != MAP_WIDTH if (GetFrameWidth (ElevFrame) != MAP_WIDTH
|| GetFrameHeight (ElevFrame) != MAP_HEIGHT) || GetFrameHeight (ElevFrame) != MAP_HEIGHT)
@@ -1736,6 +1739,13 @@ GeneratePlanetMask (PPLANET_DESC pPlanetDesc, FRAME SurfDefFrame)
// grab the elevation data in 1 byte per pixel format // grab the elevation data in 1 byte per pixel format
getpixelarray (Orbit->lpTopoData, 1, ElevFrame, getpixelarray (Orbit->lpTopoData, 1, ElevFrame,
MAP_WIDTH, MAP_HEIGHT); MAP_WIDTH, MAP_HEIGHT);
// the supplied data is in unsigned format, must convert
for (i = 0, elev = Orbit->lpTopoData;
i < MAP_WIDTH * MAP_HEIGHT;
++i, ++elev)
{
*elev -= 128;
}
} }
else else
{ // no elevation data -- planet flat as a pancake { // no elevation data -- planet flat as a pancake