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Convert r_skyplane into a class
This commit is contained in:
Magnus Norddahl
parent
0885ff44a0
commit
9f8ac7e498
3 changed files with 78 additions and 50 deletions
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@ -47,31 +47,7 @@ EXTERN_CVAR(Int, r_skymode)
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namespace swrenderer
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{
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namespace
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{
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FTexture *frontskytex, *backskytex;
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angle_t skyflip;
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int frontpos, backpos;
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double frontyScale;
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fixed_t frontcyl, backcyl;
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double skymid;
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angle_t skyangle;
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double frontiScale;
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// Allow for layer skies up to 512 pixels tall. This is overkill,
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// since the most anyone can ever see of the sky is 500 pixels.
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// We need 4 skybufs because R_DrawSkySegment can draw up to 4 columns at a time.
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// Need two versions - one for true color and one for palette
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#define MAXSKYBUF 3072
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uint8_t skybuf[4][512];
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uint32_t skybuf_bgra[MAXSKYBUF][512];
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uint32_t lastskycol[4];
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uint32_t lastskycol_bgra[MAXSKYBUF];
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int skycolplace;
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int skycolplace_bgra;
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}
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void R_DrawSkyPlane(visplane_t *pl)
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void RenderSkyPlane::Render(visplane_t *pl)
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{
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FTextureID sky1tex, sky2tex;
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double frontdpos = 0, backdpos = 0;
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@ -181,7 +157,7 @@ namespace swrenderer
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R_SetColorMapLight(fixedcolormap, 0, 0);
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}
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R_DrawSky(pl);
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DrawSky(pl);
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if (fakefixed)
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fixedcolormap = NULL;
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@ -189,7 +165,7 @@ namespace swrenderer
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// Get a column of sky when there is only one sky texture.
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const uint8_t *R_GetOneSkyColumn(FTexture *fronttex, int x)
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const uint8_t *RenderSkyPlane::GetOneSkyColumn(FTexture *fronttex, int x)
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{
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int tx;
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if (r_linearsky)
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@ -213,7 +189,7 @@ namespace swrenderer
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}
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// Get a column of sky when there are two overlapping sky textures
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const uint8_t *R_GetTwoSkyColumns(FTexture *fronttex, int x)
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const uint8_t *RenderSkyPlane::GetTwoSkyColumns(FTexture *fronttex, int x)
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{
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uint32_t ang, angle1, angle2;
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@ -271,7 +247,7 @@ namespace swrenderer
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}
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else
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{
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//return R_GetOneSkyColumn(fronttex, x);
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//return GetOneSkyColumn(fronttex, x);
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for (i = skycolplace_bgra - 4; i < skycolplace_bgra; ++i)
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{
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int ic = (i % MAXSKYBUF); // i "checker" - can wrap around the ends of the array
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@ -311,7 +287,7 @@ namespace swrenderer
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}
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}
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void R_DrawSkyColumnStripe(int start_x, int y1, int y2, int columns, double scale, double texturemid, double yrepeat)
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void RenderSkyPlane::DrawSkyColumnStripe(int start_x, int y1, int y2, int columns, double scale, double texturemid, double yrepeat)
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{
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using namespace drawerargs;
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@ -376,12 +352,12 @@ namespace swrenderer
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R_Drawers()->DrawDoubleSkyColumn(solid_top, solid_bottom);
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}
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void R_DrawSkyColumn(int start_x, int y1, int y2, int columns)
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void RenderSkyPlane::DrawSkyColumn(int start_x, int y1, int y2, int columns)
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{
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if (1 << frontskytex->HeightBits == frontskytex->GetHeight())
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{
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double texturemid = skymid * frontskytex->Scale.Y + frontskytex->GetHeight();
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R_DrawSkyColumnStripe(start_x, y1, y2, columns, frontskytex->Scale.Y, texturemid, frontskytex->Scale.Y);
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DrawSkyColumnStripe(start_x, y1, y2, columns, frontskytex->Scale.Y, texturemid, frontskytex->Scale.Y);
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}
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else
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{
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@ -392,11 +368,11 @@ namespace swrenderer
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double topfrac = fmod(skymid + iscale * (1 - CenterY), frontskytex->GetHeight());
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if (topfrac < 0) topfrac += frontskytex->GetHeight();
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double texturemid = topfrac - iscale * (1 - CenterY);
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R_DrawSkyColumnStripe(start_x, y1, y2, columns, scale, texturemid, yrepeat);
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DrawSkyColumnStripe(start_x, y1, y2, columns, scale, texturemid, yrepeat);
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}
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}
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void R_DrawCapSky(visplane_t *pl)
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void RenderSkyPlane::DrawCapSky(visplane_t *pl)
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{
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int x1 = pl->left;
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int x2 = pl->right;
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@ -410,15 +386,15 @@ namespace swrenderer
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if (y2 <= y1)
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continue;
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R_DrawSkyColumn(x, y1, y2, 1);
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DrawSkyColumn(x, y1, y2, 1);
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}
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}
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void R_DrawSky(visplane_t *pl)
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void RenderSkyPlane::DrawSky(visplane_t *pl)
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{
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if (r_skymode == 2)
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{
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R_DrawCapSky(pl);
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DrawCapSky(pl);
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return;
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}
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@ -468,17 +444,17 @@ namespace swrenderer
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lastskycol_bgra[x] = 0xffffffff;
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}
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R_DrawSkySegment(frontskytex, pl->left, pl->right, (short *)pl->top, (short *)pl->bottom, swall, lwall,
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frontyScale, 0, 0, 0.0f, 0.0f, backskytex == NULL ? R_GetOneSkyColumn : R_GetTwoSkyColumns);
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frontyScale, 0, 0, 0.0f, 0.0f, backskytex == NULL ? RenderSkyPlane::GetOneSkyColumn : RenderSkyPlane::GetTwoSkyColumns);
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}
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else
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{ // The texture does not tile nicely
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frontyScale *= skyscale;
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frontiScale = 1 / frontyScale;
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R_DrawSkyStriped(pl);
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DrawSkyStriped(pl);
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}
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}
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void R_DrawSkyStriped(visplane_t *pl)
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void RenderSkyPlane::DrawSkyStriped(visplane_t *pl)
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{
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short drawheight = short(frontskytex->GetHeight() * frontyScale);
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double topfrac;
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@ -505,10 +481,33 @@ namespace swrenderer
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lastskycol[x] = 0xffffffff;
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lastskycol_bgra[x] = 0xffffffff;
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}
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R_DrawSkySegment(frontskytex, pl->left, pl->right, top, bot, swall, lwall, frontskytex->Scale.Y, 0, 0, 0.0f, 0.0f, backskytex == NULL ? R_GetOneSkyColumn : R_GetTwoSkyColumns);
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R_DrawSkySegment(frontskytex, pl->left, pl->right, top, bot, swall, lwall, frontskytex->Scale.Y, 0, 0, 0.0f, 0.0f, backskytex == NULL ? RenderSkyPlane::GetOneSkyColumn : RenderSkyPlane::GetTwoSkyColumns);
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yl = yh;
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yh += drawheight;
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dc_texturemid = iscale * (centery - yl - 1);
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}
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}
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FTexture *RenderSkyPlane::frontskytex;
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FTexture *RenderSkyPlane::backskytex;
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angle_t RenderSkyPlane::skyflip;
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int RenderSkyPlane::frontpos;
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int RenderSkyPlane::backpos;
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double RenderSkyPlane::frontyScale;
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fixed_t RenderSkyPlane::frontcyl;
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fixed_t RenderSkyPlane::backcyl;
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double RenderSkyPlane::skymid;
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angle_t RenderSkyPlane::skyangle;
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double RenderSkyPlane::frontiScale;
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// Allow for layer skies up to 512 pixels tall. This is overkill,
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// since the most anyone can ever see of the sky is 500 pixels.
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// We need 4 skybufs because DrawSkySegment can draw up to 4 columns at a time.
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// Need two versions - one for true color and one for palette
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uint8_t RenderSkyPlane::skybuf[4][512];
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uint32_t RenderSkyPlane::skybuf_bgra[MAXSKYBUF][512];
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uint32_t RenderSkyPlane::lastskycol[4];
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uint32_t RenderSkyPlane::lastskycol_bgra[MAXSKYBUF];
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int RenderSkyPlane::skycolplace;
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int RenderSkyPlane::skycolplace_bgra;
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}
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@ -17,14 +17,43 @@
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namespace swrenderer
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{
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void R_DrawSkyPlane(visplane_t *pl);
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class RenderSkyPlane
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{
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public:
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static void Render(visplane_t *pl);
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void R_DrawSky(visplane_t *pl);
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void R_DrawSkyStriped(visplane_t *pl);
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void R_DrawCapSky(visplane_t *pl);
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void R_DrawSkyColumnStripe(int start_x, int y1, int y2, int columns, double scale, double texturemid, double yrepeat);
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void R_DrawSkyColumn(int start_x, int y1, int y2, int columns);
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private:
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static void DrawSky(visplane_t *pl);
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static void DrawSkyStriped(visplane_t *pl);
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static void DrawCapSky(visplane_t *pl);
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static void DrawSkyColumnStripe(int start_x, int y1, int y2, int columns, double scale, double texturemid, double yrepeat);
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static void DrawSkyColumn(int start_x, int y1, int y2, int columns);
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const uint8_t *R_GetOneSkyColumn(FTexture *fronttex, int x);
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const uint8_t *R_GetTwoSkyColumns(FTexture *fronttex, int x);
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static const uint8_t *GetOneSkyColumn(FTexture *fronttex, int x);
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static const uint8_t *GetTwoSkyColumns(FTexture *fronttex, int x);
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static FTexture *frontskytex;
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static FTexture *backskytex;
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static angle_t skyflip;
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static int frontpos;
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static int backpos;
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static double frontyScale;
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static fixed_t frontcyl;
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static fixed_t backcyl;
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static double skymid;
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static angle_t skyangle;
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static double frontiScale;
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// Allow for layer skies up to 512 pixels tall. This is overkill,
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// since the most anyone can ever see of the sky is 500 pixels.
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// We need 4 skybufs because R_DrawSkySegment can draw up to 4 columns at a time.
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// Need two versions - one for true color and one for palette
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enum { MAXSKYBUF = 3072 };
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static uint8_t skybuf[4][512];
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static uint32_t skybuf_bgra[MAXSKYBUF][512];
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static uint32_t lastskycol[4];
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static uint32_t lastskycol_bgra[MAXSKYBUF];
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static int skycolplace;
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static int skycolplace_bgra;
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};
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}
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@ -480,7 +480,7 @@ namespace swrenderer
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if (pl->picnum == skyflatnum) // sky flat
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{
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R_DrawSkyPlane(pl);
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RenderSkyPlane::Render(pl);
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}
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else // regular flat
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{
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