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v_2ddrawer.cpp
1228 lines (1058 loc) · 35.7 KB
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v_2ddrawer.cpp
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/*
** v_2ddrawer.h
** Device independent 2D draw list
**
**---------------------------------------------------------------------------
** Copyright 2016-2020 Christoph Oelckers
** All rights reserved.
**
** Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions
** are met:
**
** 1. Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
** 2. Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in the
** documentation and/or other materials provided with the distribution.
** 3. The name of the author may not be used to endorse or promote products
** derived from this software without specific prior written permission.
**
** THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
** OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
** IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
** NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
** THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
**---------------------------------------------------------------------------
**
*/
#include <stdarg.h>
#include "v_2ddrawer.h"
#include "vectors.h"
#include "vm.h"
#include "c_cvars.h"
#include "v_draw.h"
#include "v_video.h"
#include "fcolormap.h"
static F2DDrawer drawer;
F2DDrawer* twod = &drawer;
EXTERN_CVAR(Float, transsouls)
CVAR(Float, classic_scaling_factor, 1.0, CVAR_ARCHIVE)
CVAR(Float, classic_scaling_pixelaspect, 1.2f, CVAR_ARCHIVE)
IMPLEMENT_CLASS(DShape2DTransform, false, false)
static void Shape2DTransform_Clear(DShape2DTransform* self)
{
self->transform.Identity();
}
DEFINE_ACTION_FUNCTION_NATIVE(DShape2DTransform, Clear, Shape2DTransform_Clear)
{
PARAM_SELF_PROLOGUE(DShape2DTransform);
Shape2DTransform_Clear(self);
return 0;
}
static void Shape2DTransform_Rotate(DShape2DTransform* self, double angle)
{
self->transform = DMatrix3x3::Rotate2D(DEG2RAD(angle)) * self->transform;
}
DEFINE_ACTION_FUNCTION_NATIVE(DShape2DTransform, Rotate, Shape2DTransform_Rotate)
{
PARAM_SELF_PROLOGUE(DShape2DTransform);
PARAM_FLOAT(angle);
Shape2DTransform_Rotate(self, angle);
return 0;
}
static void Shape2DTransform_Scale(DShape2DTransform* self, double x, double y)
{
self->transform = DMatrix3x3::Scale2D(DVector2(x, y)) * self->transform;
}
DEFINE_ACTION_FUNCTION_NATIVE(DShape2DTransform, Scale, Shape2DTransform_Scale)
{
PARAM_SELF_PROLOGUE(DShape2DTransform);
PARAM_FLOAT(x);
PARAM_FLOAT(y);
Shape2DTransform_Scale(self, x, y);
return 0;
}
static void Shape2DTransform_Translate(DShape2DTransform* self, double x, double y)
{
self->transform = DMatrix3x3::Translate2D(DVector2(x, y)) * self->transform;
}
DEFINE_ACTION_FUNCTION_NATIVE(DShape2DTransform, Translate, Shape2DTransform_Translate)
{
PARAM_SELF_PROLOGUE(DShape2DTransform);
PARAM_FLOAT(x);
PARAM_FLOAT(y);
Shape2DTransform_Translate(self, x, y);
return 0;
}
static void Shape2DTransform_From2D(
DShape2DTransform* self,
double m00, double m01, double m10, double m11, double vx, double vy
)
{
self->transform.Cells[0][0] = m00;
self->transform.Cells[0][1] = m01;
self->transform.Cells[1][0] = m10;
self->transform.Cells[1][1] = m11;
self->transform.Cells[0][2] = vx;
self->transform.Cells[1][2] = vy;
}
DEFINE_ACTION_FUNCTION_NATIVE(DShape2DTransform, From2D, Shape2DTransform_From2D)
{
PARAM_SELF_PROLOGUE(DShape2DTransform);
PARAM_FLOAT(m00);
PARAM_FLOAT(m01);
PARAM_FLOAT(m10);
PARAM_FLOAT(m11);
PARAM_FLOAT(vx);
PARAM_FLOAT(vy);
Shape2DTransform_From2D(self, m00, m01, m10, m11, vx, vy);
return 0;
}
IMPLEMENT_CLASS(DShape2D, false, false)
static void Shape2D_SetTransform(DShape2D* self, DShape2DTransform *transform)
{
self->transform = transform->transform;
}
DEFINE_ACTION_FUNCTION_NATIVE(DShape2D, SetTransform, Shape2D_SetTransform)
{
PARAM_SELF_PROLOGUE(DShape2D);
PARAM_OBJECT_NOT_NULL(transform, DShape2DTransform);
Shape2D_SetTransform(self, transform);
return 0;
}
static void Shape2D_Clear(DShape2D* self, int which)
{
if (which & C_Verts) self->mVertices.Clear();
if (which & C_Coords) self->mCoords.Clear();
if (which & C_Indices) self->mIndices.Clear();
self->bufferInfo->needsVertexUpload = true;
}
DEFINE_ACTION_FUNCTION_NATIVE(DShape2D, Clear, Shape2D_Clear)
{
PARAM_SELF_PROLOGUE(DShape2D);
PARAM_INT(which);
Shape2D_Clear(self, which);
return 0;
}
static void Shape2D_PushVertex(DShape2D* self, double x, double y)
{
self->mVertices.Push(DVector2(x, y));
self->bufferInfo->needsVertexUpload = true;
}
DEFINE_ACTION_FUNCTION_NATIVE(DShape2D, PushVertex, Shape2D_PushVertex)
{
PARAM_SELF_PROLOGUE(DShape2D);
PARAM_FLOAT(x);
PARAM_FLOAT(y);
Shape2D_PushVertex(self, x, y);
return 0;
}
static void Shape2D_PushCoord(DShape2D* self, double u, double v)
{
self->mCoords.Push(DVector2(u, v));
self->bufferInfo->needsVertexUpload = true;
}
DEFINE_ACTION_FUNCTION_NATIVE(DShape2D, PushCoord, Shape2D_PushCoord)
{
PARAM_SELF_PROLOGUE(DShape2D);
PARAM_FLOAT(u);
PARAM_FLOAT(v);
Shape2D_PushCoord(self, u, v);
return 0;
}
static void Shape2D_PushTriangle(DShape2D* self, int a, int b, int c)
{
self->mIndices.Push(a);
self->mIndices.Push(b);
self->mIndices.Push(c);
self->bufferInfo->needsVertexUpload = true;
}
DEFINE_ACTION_FUNCTION_NATIVE(DShape2D, PushTriangle, Shape2D_PushTriangle)
{
PARAM_SELF_PROLOGUE(DShape2D);
PARAM_INT(a);
PARAM_INT(b);
PARAM_INT(c);
Shape2D_PushTriangle(self, a, b, c);
return 0;
}
//==========================================================================
//
//
//
//==========================================================================
int F2DDrawer::AddCommand(RenderCommand *data)
{
data->mScreenFade = screenFade;
if (mData.Size() > 0 && data->isCompatible(mData.Last()))
{
// Merge with the last command.
mData.Last().mIndexCount += data->mIndexCount;
mData.Last().mVertCount += data->mVertCount;
return mData.Size();
}
else
{
return mData.Push(*data);
}
}
//==========================================================================
//
//
//
//==========================================================================
void F2DDrawer::AddIndices(int firstvert, int count, ...)
{
va_list ap;
va_start(ap, count);
int addr = mIndices.Reserve(count);
for (int i = 0; i < count; i++)
{
mIndices[addr + i] = firstvert + va_arg(ap, int);
}
}
void F2DDrawer::AddIndices(int firstvert, TArray<int> &v)
{
int addr = mIndices.Reserve(v.Size());
for (unsigned i = 0; i < v.Size(); i++)
{
mIndices[addr + i] = firstvert + v[i];
}
}
//==========================================================================
//
// SetStyle
//
// Patterned after R_SetPatchStyle.
//
//==========================================================================
bool F2DDrawer::SetStyle(FGameTexture *tex, DrawParms &parms, PalEntry &vertexcolor, RenderCommand &quad)
{
FRenderStyle style = parms.style;
float alpha;
bool stencilling;
if (style.Flags & STYLEF_TransSoulsAlpha)
{
alpha = transsouls;
}
else if (style.Flags & STYLEF_Alpha1)
{
alpha = 1;
}
else
{
alpha = clamp(parms.Alpha, 0.f, 1.f);
}
style.CheckFuzz();
if (style.BlendOp == STYLEOP_Shadow || style.BlendOp == STYLEOP_Fuzz)
{
style = LegacyRenderStyles[STYLE_TranslucentStencil];
alpha = 0.3f;
parms.fillcolor = 0;
}
else if (style.BlendOp == STYLEOP_FuzzOrAdd)
{
style.BlendOp = STYLEOP_Add;
}
else if (style.BlendOp == STYLEOP_FuzzOrSub)
{
style.BlendOp = STYLEOP_Sub;
}
else if (style.BlendOp == STYLEOP_FuzzOrRevSub)
{
style.BlendOp = STYLEOP_RevSub;
}
stencilling = false;
if (style.Flags & STYLEF_InvertOverlay)
{
// Only the overlay color is inverted, not the overlay alpha.
parms.colorOverlay.r = 255 - parms.colorOverlay.r;
parms.colorOverlay.g = 255 - parms.colorOverlay.g;
parms.colorOverlay.b = 255 - parms.colorOverlay.b;
}
SetColorOverlay(parms.colorOverlay, alpha, vertexcolor, quad.mColor1);
if (style.Flags & STYLEF_ColorIsFixed)
{
if (style.Flags & STYLEF_InvertSource)
{ // Since the source color is a constant, we can invert it now
// without spending time doing it in the shader.
parms.fillcolor.r = 255 - parms.fillcolor.r;
parms.fillcolor.g = 255 - parms.fillcolor.g;
parms.fillcolor.b = 255 - parms.fillcolor.b;
style.Flags &= ~STYLEF_InvertSource;
}
if (parms.desaturate > 0)
{
// Desaturation can also be computed here without having to do it in the shader.
auto gray = parms.fillcolor.Luminance();
auto notgray = 255 - gray;
parms.fillcolor.r = uint8_t((parms.fillcolor.r * notgray + gray * 255) / 255);
parms.fillcolor.g = uint8_t((parms.fillcolor.g * notgray + gray * 255) / 255);
parms.fillcolor.b = uint8_t((parms.fillcolor.b * notgray + gray * 255) / 255);
parms.desaturate = 0;
}
// Set up the color mod to replace the color from the image data.
vertexcolor.r = parms.fillcolor.r;
vertexcolor.g = parms.fillcolor.g;
vertexcolor.b = parms.fillcolor.b;
if (style.Flags & STYLEF_RedIsAlpha)
{
quad.mDrawMode = TM_ALPHATEXTURE;
}
else
{
quad.mDrawMode = TM_STENCIL;
}
}
else
{
if (style.Flags & STYLEF_RedIsAlpha)
{
quad.mDrawMode = TM_ALPHATEXTURE;
}
else if (style.Flags & STYLEF_InvertSource)
{
quad.mDrawMode = TM_INVERSE;
}
if (parms.specialcolormap != nullptr)
{ // draw with an invulnerability or similar colormap.
auto scm = parms.specialcolormap;
quad.mSpecialColormap[0] = PalEntry(255, int(scm->ColorizeStart[0] * 127.5f), int(scm->ColorizeStart[1] * 127.5f), int(scm->ColorizeStart[2] * 127.5f));
quad.mSpecialColormap[1] = PalEntry(255, int(scm->ColorizeEnd[0] * 127.5f), int(scm->ColorizeEnd[1] * 127.5f), int(scm->ColorizeEnd[2] * 127.5f));
quad.mColor1 = 0; // this disables the color overlay.
}
quad.mDesaturate = parms.desaturate;
}
// apply the element's own color. This is being blended with anything that came before.
vertexcolor = PalEntry((vertexcolor.a * parms.color.a) / 255, (vertexcolor.r * parms.color.r) / 255, (vertexcolor.g * parms.color.g) / 255, (vertexcolor.b * parms.color.b) / 255);
if (!parms.masked)
{
// For TM_ALPHATEXTURE and TM_STENCIL the mask cannot be turned off because it would not yield a usable result.
if (quad.mDrawMode == TM_NORMAL) quad.mDrawMode = TM_OPAQUE;
else if (quad.mDrawMode == TM_INVERSE) quad.mDrawMode = TM_INVERTOPAQUE;
}
quad.mRenderStyle = parms.style; // this contains the blend mode and blend equation settings.
if (parms.burn) quad.mFlags |= DTF_Burn;
return true;
}
//==========================================================================
//
// Draws a texture
//
//==========================================================================
void F2DDrawer::SetColorOverlay(PalEntry color, float alpha, PalEntry &vertexcolor, PalEntry &overlaycolor)
{
if (color.a != 0 && (color & 0xffffff) != 0)
{
// overlay color uses premultiplied alpha.
int a = color.a * 256 / 255;
overlaycolor.r = (color.r * a) >> 8;
overlaycolor.g = (color.g * a) >> 8;
overlaycolor.b = (color.b * a) >> 8;
overlaycolor.a = 0; // The overlay gets added on top of the texture data so to preserve the pixel's alpha this must be 0.
}
else
{
overlaycolor = 0;
}
// Vertex intensity is the inverse of the overlay so that the shader can do a simple addition to combine them.
uint8_t light = 255 - color.a;
vertexcolor = PalEntry(int(alpha * 255), light, light, light);
// The real color gets multiplied into vertexcolor later.
}
//==========================================================================
//
// Draws a texture
//
//==========================================================================
void F2DDrawer::AddTexture(FGameTexture* img, DrawParms& parms)
{
if (parms.style.BlendOp == STYLEOP_None) return; // not supposed to be drawn.
assert(img && img->isValid());
double xscale = parms.destwidth / parms.texwidth;
double yscale = parms.destheight / parms.texheight;
double u1, v1, u2, v2;
PalEntry vertexcolor;
RenderCommand dg;
dg.mType = DrawTypeTriangles;
dg.mVertCount = 4;
dg.mTexture = img;
if (img->isWarped()) dg.mFlags |= DTF_Wrap;
if (parms.indexed) dg.mFlags |= DTF_Indexed;
dg.mTranslationId = 0;
SetStyle(img, parms, vertexcolor, dg);
if (parms.indexed)
{
dg.mLightLevel = vertexcolor.Luminance();
vertexcolor = 0xffffffff;
}
if (!img->isHardwareCanvas() && parms.TranslationId != -1)
{
dg.mTranslationId = parms.TranslationId;
}
u1 = parms.srcx;
v1 = parms.srcy;
u2 = parms.srcx + parms.srcwidth;
v2 = parms.srcy + parms.srcheight;
if (parms.flipX)
{
std::swap(u1, u2);
}
if (parms.flipY)
{
std::swap(v1, v2);
}
auto osave = offset;
if (parms.nooffset) offset = { 0,0 };
if (parms.rotateangle == 0)
{
double x = parms.x - parms.left * xscale;
double y = parms.y - parms.top * yscale;
double w = parms.destwidth;
double h = parms.destheight;
// This is crap. Only kept for backwards compatibility with scripts that may have used it.
// Note that this only works for unflipped and unrotated full textures.
if (parms.windowleft > 0 || parms.windowright < parms.texwidth)
{
double wi = min(parms.windowright, parms.texwidth);
x += parms.windowleft * xscale;
w -= (parms.texwidth - wi + parms.windowleft) * xscale;
u1 = float(u1 + parms.windowleft / parms.texwidth);
u2 = float(u2 - (parms.texwidth - wi) / parms.texwidth);
}
auto t = this->transform;
auto tCorners = {
(t * DVector3(x, y, 1.0)).XY(),
(t * DVector3(x, y + h, 1.0)).XY(),
(t * DVector3(x + w, y, 1.0)).XY(),
(t * DVector3(x + w, y + h, 1.0)).XY()
};
double minx = std::min_element(tCorners.begin(), tCorners.end(), [] (auto d0, auto d1) { return d0.X < d1.X; })->X;
double maxx = std::max_element(tCorners.begin(), tCorners.end(), [] (auto d0, auto d1) { return d0.X < d1.X; })->X;
double miny = std::min_element(tCorners.begin(), tCorners.end(), [] (auto d0, auto d1) { return d0.Y < d1.Y; })->Y;
double maxy = std::max_element(tCorners.begin(), tCorners.end(), [] (auto d0, auto d1) { return d0.Y < d1.Y; })->Y;
if (minx < (double)parms.lclip || miny < (double)parms.uclip || maxx >(double)parms.rclip || maxy >(double)parms.dclip)
{
dg.mScissor[0] = parms.lclip + int(offset.X);
dg.mScissor[1] = parms.uclip + int(offset.Y);
dg.mScissor[2] = parms.rclip + int(offset.X);
dg.mScissor[3] = parms.dclip + int(offset.Y);
dg.mFlags |= DTF_Scissor;
}
else
{
memset(dg.mScissor, 0, sizeof(dg.mScissor));
}
dg.mVertCount = 4;
dg.mVertIndex = (int)mVertices.Reserve(4);
TwoDVertex* ptr = &mVertices[dg.mVertIndex];
ptr->Set(x, y, 0, u1, v1, vertexcolor); ptr++;
ptr->Set(x, y + h, 0, u1, v2, vertexcolor); ptr++;
ptr->Set(x + w, y, 0, u2, v1, vertexcolor); ptr++;
ptr->Set(x + w, y + h, 0, u2, v2, vertexcolor); ptr++;
}
else
{
double radang = parms.rotateangle * (pi::pi() / 180.);
double cosang = cos(radang);
double sinang = sin(radang);
double xd1 = -parms.left;
double yd1 = -parms.top;
double xd2 = xd1 + parms.texwidth;
double yd2 = yd1 + parms.texheight;
double x1 = parms.x + xscale * (xd1 * cosang + yd1 * sinang);
double y1 = parms.y - yscale * (xd1 * sinang - yd1 * cosang);
double x2 = parms.x + xscale * (xd1 * cosang + yd2 * sinang);
double y2 = parms.y - yscale * (xd1 * sinang - yd2 * cosang);
double x3 = parms.x + xscale * (xd2 * cosang + yd1 * sinang);
double y3 = parms.y - yscale * (xd2 * sinang - yd1 * cosang);
double x4 = parms.x + xscale * (xd2 * cosang + yd2 * sinang);
double y4 = parms.y - yscale * (xd2 * sinang - yd2 * cosang);
dg.mScissor[0] = parms.lclip + int(offset.X);
dg.mScissor[1] = parms.uclip + int(offset.Y);
dg.mScissor[2] = parms.rclip + int(offset.X);
dg.mScissor[3] = parms.dclip + int(offset.Y);
dg.mFlags |= DTF_Scissor;
dg.mVertCount = 4;
dg.mVertIndex = (int)mVertices.Reserve(4);
TwoDVertex* ptr = &mVertices[dg.mVertIndex];
ptr->Set(x1, y1, 0, u1, v1, vertexcolor); ptr++;
ptr->Set(x2, y2, 0, u1, v2, vertexcolor); ptr++;
ptr->Set(x3, y3, 0, u2, v1, vertexcolor); ptr++;
ptr->Set(x4, y4, 0, u2, v2, vertexcolor); ptr++;
}
dg.useTransform = true;
dg.transform = this->transform;
dg.transform.Cells[0][2] += offset.X;
dg.transform.Cells[1][2] += offset.Y;
dg.mIndexIndex = mIndices.Size();
dg.mIndexCount += 6;
AddIndices(dg.mVertIndex, 6, 0, 1, 2, 1, 3, 2);
AddCommand(&dg);
offset = osave;
}
static TArray<RefCountedPtr<DShape2DBufferInfo>> buffersToDestroy;
void DShape2D::OnDestroy() {
if (lastParms) delete lastParms;
lastParms = nullptr;
mIndices.Reset();
mVertices.Reset();
mCoords.Reset();
buffersToDestroy.Push(std::move(bufferInfo));
}
//==========================================================================
//
//
//
//==========================================================================
void F2DDrawer::AddShape(FGameTexture* img, DShape2D* shape, DrawParms& parms)
{
// [MK] bail out if vertex/coord array sizes are mismatched
if ( shape->mVertices.Size() != shape->mCoords.Size() )
ThrowAbortException(X_OTHER, "Mismatch in vertex/coord count: %u != %u", shape->mVertices.Size(), shape->mCoords.Size());
if (parms.style.BlendOp == STYLEOP_None) return; // not supposed to be drawn.
PalEntry vertexcolor;
RenderCommand dg;
dg.mType = DrawTypeTriangles;
dg.mVertCount = shape->mVertices.Size();
dg.mFlags |= DTF_Wrap;
dg.mTexture = img;
dg.mTranslationId = 0;
SetStyle(img, parms, vertexcolor, dg);
if (shape->lastParms == nullptr) {
shape->lastParms = new DrawParms(parms);
}
else if (shape->lastParms->vertexColorChange(parms)) {
shape->bufferInfo->needsVertexUpload = true;
if (!shape->bufferInfo->uploadedOnce) {
shape->bufferInfo->bufIndex = -1;
shape->bufferInfo->buffers.Clear();
shape->bufferInfo->lastCommand = -1;
}
delete shape->lastParms;
shape->lastParms = new DrawParms(parms);
}
if (!(img != nullptr && img->isHardwareCanvas()) && parms.TranslationId != -1)
dg.mTranslationId = parms.TranslationId;
auto osave = offset;
if (parms.nooffset) offset = { 0,0 };
if (shape->bufferInfo->needsVertexUpload)
{
shape->minx = 16383;
shape->miny = 16383;
shape->maxx = -16384;
shape->maxy = -16384;
for ( int i=0; i<dg.mVertCount; i++ )
{
if ( shape->mVertices[i].X < shape->minx ) shape->minx = shape->mVertices[i].X;
if ( shape->mVertices[i].Y < shape->miny ) shape->miny = shape->mVertices[i].Y;
if ( shape->mVertices[i].X > shape->maxx ) shape->maxx = shape->mVertices[i].X;
if ( shape->mVertices[i].Y > shape->maxy ) shape->maxy = shape->mVertices[i].Y;
}
}
auto t = this->transform * shape->transform;
auto tCorners = {
(t * DVector3(shape->minx, shape->miny, 1.0)).XY(),
(t * DVector3(shape->minx, shape->maxy, 1.0)).XY(),
(t * DVector3(shape->maxx, shape->miny, 1.0)).XY(),
(t * DVector3(shape->maxx, shape->maxy, 1.0)).XY()
};
double minx = std::min_element(tCorners.begin(), tCorners.end(), [] (auto d0, auto d1) { return d0.X < d1.X; })->X;
double maxx = std::max_element(tCorners.begin(), tCorners.end(), [] (auto d0, auto d1) { return d0.X < d1.X; })->X;
double miny = std::min_element(tCorners.begin(), tCorners.end(), [] (auto d0, auto d1) { return d0.Y < d1.Y; })->Y;
double maxy = std::max_element(tCorners.begin(), tCorners.end(), [] (auto d0, auto d1) { return d0.Y < d1.Y; })->Y;
if (minx < (double)parms.lclip || miny < (double)parms.uclip || maxx >(double)parms.rclip || maxy >(double)parms.dclip)
{
dg.mScissor[0] = parms.lclip + int(offset.X);
dg.mScissor[1] = parms.uclip + int(offset.Y);
dg.mScissor[2] = parms.rclip + int(offset.X);
dg.mScissor[3] = parms.dclip + int(offset.Y);
dg.mFlags |= DTF_Scissor;
}
else
memset(dg.mScissor, 0, sizeof(dg.mScissor));
dg.useTransform = true;
dg.transform = t;
dg.transform.Cells[0][2] += offset.X;
dg.transform.Cells[1][2] += offset.Y;
dg.shape2DBufInfo = shape->bufferInfo;
dg.shape2DIndexCount = shape->mIndices.Size();
if (shape->bufferInfo->needsVertexUpload)
{
shape->bufferInfo->bufIndex += 1;
shape->bufferInfo->buffers.Reserve(1);
auto buf = &shape->bufferInfo->buffers[shape->bufferInfo->bufIndex];
auto verts = TArray<TwoDVertex>(dg.mVertCount, true);
for ( int i=0; i<dg.mVertCount; i++ )
verts[i].Set(shape->mVertices[i].X, shape->mVertices[i].Y, 0, shape->mCoords[i].X, shape->mCoords[i].Y, vertexcolor);
for ( int i=0; i<int(shape->mIndices.Size()); i+=3 )
{
// [MK] bail out if any indices are out of bounds
for ( int j=0; j<3; j++ )
{
if ( shape->mIndices[i+j] < 0 )
ThrowAbortException(X_ARRAY_OUT_OF_BOUNDS, "Triangle %u index %u is negative: %i\n", i/3, j, shape->mIndices[i+j]);
if ( shape->mIndices[i+j] >= dg.mVertCount )
ThrowAbortException(X_ARRAY_OUT_OF_BOUNDS, "Triangle %u index %u: %u, max: %u\n", i/3, j, shape->mIndices[i+j], dg.mVertCount-1);
}
}
buf->UploadData(&verts[0], dg.mVertCount, &shape->mIndices[0], shape->mIndices.Size());
shape->bufferInfo->needsVertexUpload = false;
shape->bufferInfo->uploadedOnce = true;
}
dg.shape2DBufIndex = shape->bufferInfo->bufIndex;
shape->bufferInfo->lastCommand += 1;
dg.shape2DCommandCounter = shape->bufferInfo->lastCommand;
AddCommand(&dg);
offset = osave;
}
//==========================================================================
//
//
//
//==========================================================================
void F2DDrawer::AddPoly(FGameTexture *texture, FVector2 *points, int npoints,
double originx, double originy, double scalex, double scaley,
DAngle rotation, const FColormap &colormap, PalEntry flatcolor, double fadelevel,
uint32_t *indices, size_t indexcount)
{
RenderCommand poly;
poly.mType = DrawTypeTriangles;
poly.mTexture = texture;
poly.mRenderStyle = DefaultRenderStyle();
poly.mFlags |= DTF_Wrap;
poly.mDesaturate = colormap.Desaturation;
PalEntry color0;
double invfade = 1. - fadelevel;
color0.r = uint8_t(colormap.LightColor.r * invfade);
color0.g = uint8_t(colormap.LightColor.g * invfade);
color0.b = uint8_t(colormap.LightColor.b * invfade);
color0.a = 255;
poly.mColor1.a = 0;
poly.mColor1.r = uint8_t(colormap.FadeColor.r * fadelevel);
poly.mColor1.g = uint8_t(colormap.FadeColor.g * fadelevel);
poly.mColor1.b = uint8_t(colormap.FadeColor.b * fadelevel);
bool dorotate = rotation != 0;
float cosrot = (float)cos(rotation.Radians());
float sinrot = (float)sin(rotation.Radians());
float uscale = float(1.f / (texture->GetDisplayWidth() * scalex));
float vscale = float(1.f / (texture->GetDisplayHeight() * scaley));
float ox = float(originx);
float oy = float(originy);
poly.mVertCount = npoints;
poly.mVertIndex = (int)mVertices.Reserve(npoints);
for (int i = 0; i < npoints; ++i)
{
float u = points[i].X - 0.5f - ox;
float v = points[i].Y - 0.5f - oy;
if (dorotate)
{
float t = u;
u = t * cosrot - v * sinrot;
v = v * cosrot + t * sinrot;
}
mVertices[poly.mVertIndex+i].Set(points[i].X, points[i].Y, 0, u*uscale, v*vscale, color0);
}
poly.mIndexIndex = mIndices.Size();
if (indices == nullptr || indexcount == 0)
{
poly.mIndexCount += (npoints - 2) * 3;
for (int i = 2; i < npoints; ++i)
{
AddIndices(poly.mVertIndex, 3, 0, i - 1, i);
}
}
else
{
poly.mIndexCount += (int)indexcount;
int addr = mIndices.Reserve(indexcount);
for (size_t i = 0; i < indexcount; i++)
{
mIndices[addr + i] = poly.mVertIndex + indices[i];
}
}
poly.useTransform = true;
poly.transform = this->transform;
poly.transform.Cells[0][2] += offset.X;
poly.transform.Cells[1][2] += offset.Y;
AddCommand(&poly);
}
//==========================================================================
//
//
//
//==========================================================================
void F2DDrawer::AddPoly(FGameTexture* img, FVector4* vt, size_t vtcount, const unsigned int* ind, size_t idxcount, int translation, PalEntry color, FRenderStyle style, int clipx1, int clipy1, int clipx2, int clipy2)
{
RenderCommand dg;
if (!img || !img->isValid()) return;
dg.mType = DrawTypeTriangles;
if (clipx1 > 0 || clipy1 > 0 || clipx2 < GetWidth() - 1 || clipy2 < GetHeight() - 1)
{
dg.mScissor[0] = clipx1 + int(offset.X);
dg.mScissor[1] = clipy1 + int(offset.Y);
dg.mScissor[2] = clipx2 + 1 + int(offset.X);
dg.mScissor[3] = clipy2 + 1 + int(offset.Y);
dg.mFlags |= DTF_Scissor;
}
dg.mTexture = img;
dg.mTranslationId = translation;
dg.mVertCount = (int)vtcount;
dg.mVertIndex = (int)mVertices.Reserve(vtcount);
dg.mRenderStyle = LegacyRenderStyles[STYLE_Translucent];
dg.mIndexIndex = mIndices.Size();
dg.mFlags |= DTF_Wrap;
auto ptr = &mVertices[dg.mVertIndex];
for (size_t i=0;i<vtcount;i++)
{
ptr->Set(vt[i].X, vt[i].Y, 0.f, vt[i].Z, vt[i].W, color);
ptr++;
}
dg.mIndexIndex = mIndices.Size();
if (idxcount > 0)
{
mIndices.Reserve(idxcount);
for (size_t i = 0; i < idxcount; i++)
{
mIndices[dg.mIndexIndex + i] = ind[i] + dg.mVertIndex;
}
dg.mIndexCount = (int)idxcount;
}
else
{
// If we have no index buffer, treat this as an unindexed list of triangles.
mIndices.Reserve(vtcount);
for (size_t i = 0; i < vtcount; i++)
{
mIndices[dg.mIndexIndex + i] = int(i + dg.mVertIndex);
}
dg.mIndexCount = (int)vtcount;
}
dg.useTransform = true;
dg.transform = this->transform;
dg.transform.Cells[0][2] += offset.X;
dg.transform.Cells[1][2] += offset.Y;
AddCommand(&dg);
}
//==========================================================================
//
//
//
//==========================================================================
float F2DDrawer::GetClassicFlatScalarWidth()
{
float ar = 4.f / 3.f / (float)ActiveRatio((float)screen->GetWidth(), (float)screen->GetHeight());
float sw = 320.f * classic_scaling_factor / (float)screen->GetWidth() / ar;
return sw;
}
float F2DDrawer::GetClassicFlatScalarHeight()
{
float sh = 240.f / classic_scaling_pixelaspect * classic_scaling_factor / (float)screen->GetHeight();
return sh;
}
void F2DDrawer::AddFlatFill(int left, int top, int right, int bottom, FGameTexture *src, int local_origin, double flatscale, PalEntry color, ERenderStyle style)
{
float fU1, fU2, fV1, fV2;
RenderCommand dg;
dg.mType = DrawTypeTriangles;
dg.mRenderStyle = LegacyRenderStyles[style];
dg.mTexture = src;
dg.mVertCount = 4;
dg.mTexture = src;
dg.mFlags = DTF_Wrap;
float fs = 1.f / float(flatscale);
float sw = GetClassicFlatScalarWidth();
float sh = GetClassicFlatScalarHeight();
switch (local_origin)
{
default:
case 0:
fU1 = float(left) / (float)src->GetDisplayWidth() * fs;
fV1 = float(top) / (float)src->GetDisplayHeight() * fs;
fU2 = float(right) / (float)src->GetDisplayWidth() * fs;
fV2 = float(bottom) / (float)src->GetDisplayHeight() * fs;
break;
case 1:
fU1 = 0;
fV1 = 0;
fU2 = float(right - left) / (float)src->GetDisplayWidth() * fs;
fV2 = float(bottom - top) / (float)src->GetDisplayHeight() * fs;
break;
// The following are for drawing frames with elements of pnly one orientation
case 2: // flip vertically
fU1 = 0;
fV2 = 0;
fU2 = float(right - left) / (float)src->GetDisplayWidth() * fs;
fV1 = float(bottom - top) / (float)src->GetDisplayHeight() * fs;
break;
case 3: // flip horizontally
fU2 = 0;
fV1 = 0;
fU1 = float(right - left) / (float)src->GetDisplayWidth() * fs;
fV2 = float(bottom - top) / (float)src->GetDisplayHeight() * fs;
break;
case 4: // flip vertically and horizontally
fU2 = 0;
fV2 = 0;
fU1 = float(right - left) / (float)src->GetDisplayWidth() * fs;
fV1 = float(bottom - top) / (float)src->GetDisplayHeight() * fs;
break;
case 5: // flip coordinates
fU1 = 0;
fV1 = 0;
fU2 = float(bottom - top) / (float)src->GetDisplayWidth() * fs;
fV2 = float(right - left) / (float)src->GetDisplayHeight() * fs;
break;
case 6: // flip coordinates and vertically
fU2 = 0;
fV1 = 0;
fU1 = float(bottom - top) / (float)src->GetDisplayWidth() * fs;
fV2 = float(right - left) / (float)src->GetDisplayHeight() * fs;
break;
case 7: // flip coordinates and horizontally
fU1 = 0;
fV2 = 0;
fU2 = float(bottom - top) / (float)src->GetDisplayWidth() * fs;
fV1 = float(right - left) / (float)src->GetDisplayHeight() * fs;
break;
case -1: // classic flat scaling
fU1 = float(left) / (float)src->GetDisplayWidth() * fs * sw;
fV1 = float(top) / (float)src->GetDisplayHeight() * fs * sh;
fU2 = float(right) / (float)src->GetDisplayWidth() * fs * sw;
fV2 = float(bottom) / (float)src->GetDisplayHeight() * fs * sh;
break;
case -2: // classic scaling for screen bevel
fU1 = 0;
fV1 = 0;
fU2 = float(right - left) / (float)src->GetDisplayWidth() * fs * sw;
fV2 = float(bottom - top) / (float)src->GetDisplayHeight() * fs * sh;
break;
}
dg.mVertIndex = (int)mVertices.Reserve(4);
auto ptr = &mVertices[dg.mVertIndex];
ptr->Set(left, top, 0, fU1, fV1, color); ptr++;
if (local_origin < 4)
{
ptr->Set(left, bottom, 0, fU1, fV2, color); ptr++;
ptr->Set(right, top, 0, fU2, fV1, color); ptr++;
}
else
{
ptr->Set(left, bottom, 0, fU2, fV1, color); ptr++;
ptr->Set(right, top, 0, fU1, fV2, color); ptr++;
}
ptr->Set(right, bottom, 0, fU2, fV2, color); ptr++;
dg.useTransform = true;
dg.transform = this->transform;
dg.transform.Cells[0][2] += offset.X;
dg.transform.Cells[1][2] += offset.Y;
dg.mIndexIndex = mIndices.Size();
dg.mIndexCount += 6;
AddIndices(dg.mVertIndex, 6, 0, 1, 2, 1, 3, 2);
AddCommand(&dg);
}
//===========================================================================
//
//
//
//===========================================================================
void F2DDrawer::AddColorOnlyQuad(int x1, int y1, int w, int h, PalEntry color, FRenderStyle *style, bool prepend)
{