zdoom/gzdoom
0
0
Fork 0
mirror of https://github.com/ZDoom/gzdoom.git synced 2024-11-11 07:12:02 +00:00
Code Issues Projects Releases Packages Wiki Activity

Merge remote-tracking branch 'origin/capsky' into qzdoom

Browse source
This commit is contained in:
Magnus Norddahl 2016-10-20 00:13:58 +02:00
commit 0888fc0cde
5 changed files with 262 additions and 192 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

374
src/r_plane.cpp
View file

@ -989,198 +989,6 @@ static const BYTE *R_GetTwoSkyColumns (FTexture *fronttex, int x)
}
}
static void R_DrawSkyColumnStripe(int start_x, int y1, int y2, int columns, double scale, double texturemid, double yrepeat)
{
uint32_t height = frontskytex->GetHeight();
for (int i = 0; i < columns; i++)
{
double uv_stepd = skyiscale * yrepeat;
double v = (texturemid + uv_stepd * (y1 - CenterY + 0.5)) / height;
double v_step = uv_stepd / height;
uint32_t uv_pos = (uint32_t)(v * 0x01000000);
uint32_t uv_step = (uint32_t)(v_step * 0x01000000);
int x = start_x + i;
if (MirrorFlags & RF_XFLIP)
x = (viewwidth - x);
DWORD ang, angle1, angle2;
if (r_linearsky)
{
angle_t xangle = (angle_t)((0.5 - x / (double)viewwidth) * FocalTangent * ANGLE_90);
ang = (skyangle + xangle) ^ skyflip;
}
else
{
ang = (skyangle + xtoviewangle[x]) ^ skyflip;
}
angle1 = (DWORD)((UMulScale16(ang, frontcyl) + frontpos) >> FRACBITS);
angle2 = (DWORD)((UMulScale16(ang, backcyl) + backpos) >> FRACBITS);
if (r_swtruecolor)
{
bufplce[i] = (const BYTE *)frontskytex->GetColumnBgra(angle1, nullptr);
bufplce2[i] = backskytex ? (const BYTE *)backskytex->GetColumnBgra(angle2, nullptr) : nullptr;
}
else
{
bufplce[i] = (const BYTE *)frontskytex->GetColumn(angle1, nullptr);
bufplce2[i] = backskytex ? (const BYTE *)backskytex->GetColumn(angle2, nullptr) : nullptr;
}
vince[i] = uv_step;
vplce[i] = uv_pos;
}
bufheight[0] = height;
bufheight[1] = backskytex ? backskytex->GetHeight() : height;
int pixelsize = r_swtruecolor ? 4 : 1;
dc_dest = (ylookup[y1] + start_x) * pixelsize + dc_destorg;
dc_count = y2 - y1;
uint32_t solid_top = frontskytex->GetSkyCapColor(false);
uint32_t solid_bottom = frontskytex->GetSkyCapColor(true);
if (r_swtruecolor)
{
if (columns == 4)
if (!backskytex)
R_DrawSingleSkyCol4_rgba(solid_top, solid_bottom);
else
R_DrawDoubleSkyCol4_rgba(solid_top, solid_bottom);
else
if (!backskytex)
R_DrawSingleSkyCol1_rgba(solid_top, solid_bottom);
else
R_DrawDoubleSkyCol1_rgba(solid_top, solid_bottom);
}
else
{
if (columns == 4)
if (!backskytex)
R_DrawSingleSkyCol4(solid_top, solid_bottom);
else
R_DrawDoubleSkyCol4(solid_top, solid_bottom);
else
if (!backskytex)
R_DrawSingleSkyCol1(solid_top, solid_bottom);
else
R_DrawDoubleSkyCol1(solid_top, solid_bottom);
}
}
static void R_DrawSkyColumn(int start_x, int y1, int y2, int columns)
{
if (1 << frontskytex->HeightBits == frontskytex->GetHeight())
{
double texturemid = skymid * frontskytex->Scale.Y + frontskytex->GetHeight();
R_DrawSkyColumnStripe(start_x, y1, y2, columns, frontskytex->Scale.Y, texturemid, frontskytex->Scale.Y);
}
else
{
double yrepeat = frontskytex->Scale.Y;
double scale = frontskytex->Scale.Y * skyscale;
double iscale = 1 / scale;
short drawheight = short(frontskytex->GetHeight() * scale);
double topfrac = fmod(skymid + iscale * (1 - CenterY), frontskytex->GetHeight());
if (topfrac < 0) topfrac += frontskytex->GetHeight();
double texturemid = topfrac - iscale * (1 - CenterY);
R_DrawSkyColumnStripe(start_x, y1, y2, columns, scale, texturemid, yrepeat);
}
}
static void R_DrawCapSky(visplane_t *pl)
{
if (!r_swtruecolor)
R_SetColorMapLight(fixedcolormap, 0, 0);
int x1 = pl->left;
int x2 = pl->right;
short *uwal = (short *)pl->top;
short *dwal = (short *)pl->bottom;
// Calculate where 4 column alignment begins and ends:
int aligned_x1 = clamp((x1 + 3) / 4 * 4, x1, x2);
int aligned_x2 = clamp(x2 / 4 * 4, x1, x2);
// First unaligned columns:
for (int x = x1; x < aligned_x1; x++)
{
int y1 = uwal[x];
int y2 = dwal[x];
if (y2 <= y1)
continue;
R_DrawSkyColumn(x, y1, y2, 1);
}
// The aligned columns
for (int x = aligned_x1; x < aligned_x2; x += 4)
{
// Find y1, y2, light and uv values for four columns:
int y1[4] = { uwal[x], uwal[x + 1], uwal[x + 2], uwal[x + 3] };
int y2[4] = { dwal[x], dwal[x + 1], dwal[x + 2], dwal[x + 3] };
// Figure out where we vertically can start and stop drawing 4 columns in one go
int middle_y1 = y1[0];
int middle_y2 = y2[0];
for (int i = 1; i < 4; i++)
{
middle_y1 = MAX(y1[i], middle_y1);
middle_y2 = MIN(y2[i], middle_y2);
}
// If we got an empty column in our set we cannot draw 4 columns in one go:
bool empty_column_in_set = false;
for (int i = 0; i < 4; i++)
{
if (y2[i] <= y1[i])
empty_column_in_set = true;
}
if (empty_column_in_set || middle_y2 <= middle_y1)
{
for (int i = 0; i < 4; i++)
{
if (y2[i] <= y1[i])
continue;
R_DrawSkyColumn(x + i, y1[i], y2[i], 1);
}
continue;
}
// Draw the first rows where not all 4 columns are active
for (int i = 0; i < 4; i++)
{
if (y1[i] < middle_y1)
R_DrawSkyColumn(x + i, y1[i], middle_y1, 1);
}
// Draw the area where all 4 columns are active
R_DrawSkyColumn(x, middle_y1, middle_y2, 4);
// Draw the last rows where not all 4 columns are active
for (int i = 0; i < 4; i++)
{
if (middle_y2 < y2[i])
R_DrawSkyColumn(x + i, middle_y2, y2[i], 1);
}
}
// The last unaligned columns:
for (int x = aligned_x2; x < x2; x++)
{
int y1 = uwal[x];
int y2 = dwal[x];
if (y2 <= y1)
continue;
R_DrawSkyColumn(x, y1, y2, 1);
}
}
static void R_DrawCubeSky(visplane_t *pl)
{
int x1 = pl->left;
@ -1271,6 +1079,188 @@ static void R_DrawCubeSky(visplane_t *pl)
R_DrawTriangles(objectToWorld, cube, 6 * 6, x1, x2 - 1, uwal, dwal);
}
static void R_DrawSkyColumnStripe(int start_x, int y1, int y2, int columns, double scale, double texturemid, double yrepeat)
{
uint32_t height = frontskytex->GetHeight();
for (int i = 0; i < columns; i++)
{
double uv_stepd = skyiscale * yrepeat;
double v = (texturemid + uv_stepd * (y1 - CenterY + 0.5)) / height;
double v_step = uv_stepd / height;
uint32_t uv_pos = (uint32_t)(v * 0x01000000);
uint32_t uv_step = (uint32_t)(v_step * 0x01000000);
int x = start_x + i;
if (MirrorFlags & RF_XFLIP)
x = (viewwidth - x);
DWORD ang, angle1, angle2;
ang = (skyangle + xtoviewangle[x]) ^ skyflip;
angle1 = (DWORD)((UMulScale16(ang, frontcyl) + frontpos) >> FRACBITS);
angle2 = (DWORD)((UMulScale16(ang, backcyl) + backpos) >> FRACBITS);
if (r_swtruecolor)
{
bufplce[i] = (const BYTE *)frontskytex->GetColumnBgra(angle1, nullptr);
bufplce2[i] = backskytex ? (const BYTE *)backskytex->GetColumnBgra(angle2, nullptr) : nullptr;
}
else
{
bufplce[i] = (const BYTE *)frontskytex->GetColumn(angle1, nullptr);
bufplce2[i] = backskytex ? (const BYTE *)backskytex->GetColumn(angle2, nullptr) : nullptr;
}
vince[i] = uv_step;
vplce[i] = uv_pos;
}
bufheight[0] = height;
bufheight[1] = backskytex ? backskytex->GetHeight() : height;
int pixelsize = r_swtruecolor ? 4 : 1;
dc_dest = (ylookup[y1] + start_x) * pixelsize + dc_destorg;
dc_count = y2 - y1;
uint32_t solid_top = frontskytex->GetSWSkyCapColor(false);
uint32_t solid_bottom = frontskytex->GetSWSkyCapColor(true);
if (r_swtruecolor)
{
if (columns == 4)
if (!backskytex)
R_DrawSingleSkyCol4_rgba(solid_top, solid_bottom);
else
R_DrawDoubleSkyCol4_rgba(solid_top, solid_bottom);
else
if (!backskytex)
R_DrawSingleSkyCol1_rgba(solid_top, solid_bottom);
else
R_DrawDoubleSkyCol1_rgba(solid_top, solid_bottom);
}
else
{
if (columns == 4)
if (!backskytex)
R_DrawSingleSkyCol4(solid_top, solid_bottom);
else
R_DrawDoubleSkyCol4(solid_top, solid_bottom);
else
if (!backskytex)
R_DrawSingleSkyCol1(solid_top, solid_bottom);
else
R_DrawDoubleSkyCol1(solid_top, solid_bottom);
}
}
static void R_DrawSkyColumn(int start_x, int y1, int y2, int columns)
{
if (1 << frontskytex->HeightBits == frontskytex->GetHeight())
{
double texturemid = skymid * frontskytex->Scale.Y + frontskytex->GetHeight();
R_DrawSkyColumnStripe(start_x, y1, y2, columns, frontskytex->Scale.Y, texturemid, frontskytex->Scale.Y);
}
else
{
double yrepeat = frontskytex->Scale.Y;
double scale = frontskytex->Scale.Y * skyscale;
double iscale = 1 / scale;
short drawheight = short(frontskytex->GetHeight() * scale);
double topfrac = fmod(skymid + iscale * (1 - CenterY), frontskytex->GetHeight());
if (topfrac < 0) topfrac += frontskytex->GetHeight();
double texturemid = topfrac - iscale * (1 - CenterY);
R_DrawSkyColumnStripe(start_x, y1, y2, columns, scale, texturemid, yrepeat);
}
}
static void R_DrawCapSky(visplane_t *pl)
{
int x1 = pl->left;
int x2 = pl->right;
short *uwal = (short *)pl->top;
short *dwal = (short *)pl->bottom;
// Calculate where 4 column alignment begins and ends:
int aligned_x1 = clamp((x1 + 3) / 4 * 4, x1, x2);
int aligned_x2 = clamp(x2 / 4 * 4, x1, x2);
// First unaligned columns:
for (int x = x1; x < aligned_x1; x++)
{
int y1 = uwal[x];
int y2 = dwal[x];
if (y2 <= y1)
continue;
R_DrawSkyColumn(x, y1, y2, 1);
}
// The aligned columns
for (int x = aligned_x1; x < aligned_x2; x += 4)
{
// Find y1, y2, light and uv values for four columns:
int y1[4] = { uwal[x], uwal[x + 1], uwal[x + 2], uwal[x + 3] };
int y2[4] = { dwal[x], dwal[x + 1], dwal[x + 2], dwal[x + 3] };
// Figure out where we vertically can start and stop drawing 4 columns in one go
int middle_y1 = y1[0];
int middle_y2 = y2[0];
for (int i = 1; i < 4; i++)
{
middle_y1 = MAX(y1[i], middle_y1);
middle_y2 = MIN(y2[i], middle_y2);
}
// If we got an empty column in our set we cannot draw 4 columns in one go:
bool empty_column_in_set = false;
for (int i = 0; i < 4; i++)
{
if (y2[i] <= y1[i])
empty_column_in_set = true;
}
if (empty_column_in_set || middle_y2 <= middle_y1)
{
for (int i = 0; i < 4; i++)
{
if (y2[i] <= y1[i])
continue;
R_DrawSkyColumn(x + i, y1[i], y2[i], 1);
}
continue;
}
// Draw the first rows where not all 4 columns are active
for (int i = 0; i < 4; i++)
{
if (y1[i] < middle_y1)
R_DrawSkyColumn(x + i, y1[i], middle_y1, 1);
}
// Draw the area where all 4 columns are active
R_DrawSkyColumn(x, middle_y1, middle_y2, 4);
// Draw the last rows where not all 4 columns are active
for (int i = 0; i < 4; i++)
{
if (middle_y2 < y2[i])
R_DrawSkyColumn(x + i, middle_y2, y2[i], 1);
}
}
// The last unaligned columns:
for (int x = aligned_x2; x < x2; x++)
{
int y1 = uwal[x];
int y2 = dwal[x];
if (y2 <= y1)
continue;
R_DrawSkyColumn(x, y1, y2, 1);
}
}
static void R_DrawSky (visplane_t *pl)
{
if (r_swtruecolor && r_cubesky)

72
src/textures/texture.cpp
View file

@ -841,6 +841,78 @@ void FTexture::SetScaledSize(int fitwidth, int fitheight)
if (int(Scale.Y * fitheight) != Height) Scale.Y += (1 / 65536.);
}
//===========================================================================
//
// Gets the average color of a texture for use as a sky cap color
//
//===========================================================================
namespace
{
PalEntry averageColor(const DWORD *data, int size, int maxout)
{
int i;
unsigned int r, g, b;
// First clear them.
r = g = b = 0;
if (size == 0)
{
return PalEntry(255, 255, 255);
}
for (i = 0; i < size; i++)
{
r += BPART(data[i]);
g += GPART(data[i]);
b += RPART(data[i]);
}
r = r / size;
g = g / size;
b = b / size;
int maxv = MAX(MAX(r, g), b);
if (maxv && maxout)
{
r = Scale(r, maxout, maxv);
g = Scale(g, maxout, maxv);
b = Scale(b, maxout, maxv);
}
return PalEntry(255, r, g, b);
}
}
PalEntry FTexture::GetSWSkyCapColor(bool bottom)
{
PalEntry col;
int w;
int h;
if (!bSWSkyColorDone)
{
bSWSkyColorDone = true;
FBitmap bitmap;
bitmap.Create(GetWidth(), GetHeight());
CopyTrueColorPixels(&bitmap, 0, 0);
int w = GetWidth();
int h = GetHeight();
const uint32_t *buffer = (const uint32_t *)bitmap.GetPixels();
if (buffer)
{
SWCeilingSkyColor = averageColor((DWORD *)buffer, w * MIN(30, h), 0);
if (h>30)
{
SWFloorSkyColor = averageColor(((DWORD *)buffer) + (h - 30)*w, w * 30, 0);
}
else SWFloorSkyColor = SWCeilingSkyColor;
}
}
return bottom ? SWFloorSkyColor : SWCeilingSkyColor;
}
FDummyTexture::FDummyTexture ()
{

6
src/textures/textures.h
View file

@ -272,6 +272,7 @@ public:
}
void SetScaledSize(int fitwidth, int fitheight);
PalEntry GetSWSkyCapColor(bool bottom);
virtual void HackHack (int newheight); // called by FMultipatchTexture to discover corrupt patches.
@ -303,6 +304,11 @@ protected:
void GenerateBgraMipmapsFast();
int MipmapLevels() const;
private:
bool bSWSkyColorDone = false;
PalEntry SWFloorSkyColor;
PalEntry SWCeilingSkyColor;
public:
static void FlipSquareBlock (BYTE *block, int x, int y);
static void FlipSquareBlockBgra (uint32_t *block, int x, int y);

1
wadsrc/static/language.enu
View file

@ -1786,6 +1786,7 @@ DSPLYMNU_BLOODFADE = "Blood Flash Intensity";
DSPLYMNU_PICKUPFADE = "Pickup Flash Intensity";
DSPLYMNU_PALLETEHACK = "DirectDraw palette hack"; // Not used
DSPLYMNU_ATTACHEDSURFACES = "Use attached surfaces"; // Not used
DSPLYMNU_CAPSKY = "Cap skies with solid color";
DSPLYMNU_STRETCHSKY = "Stretch short skies";
DSPLYMNU_LINEARSKY = "Linear skies";
DSPLYMNU_GZDFULLBRIGHT = "Emulate GZDoom FullBright";

1
wadsrc/static/menudef.txt
View file

@ -700,6 +700,7 @@ OptionMenu "VideoOptions"
//Option "$DSPLYMNU_ATTACHEDSURFACES", "vid_attachedsurfaces", "OnOff"
}
Option "$DSPLYMNU_CAPSKY", "r_capsky", "OnOff"
Option "$DSPLYMNU_STRETCHSKY", "r_stretchsky", "OnOff"
Option "$DSPLYMNU_LINEARSKY", "r_linearsky", "OnOff"
Option "$DSPLYMNU_GZDFULLBRIGHT", "r_fullbrightignoresectorcolor", "OnOff"