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Code Issues Releases Wiki Activity

remove GRID_DRAW_WORLDMAP and some associated code

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This commit is contained in:
fgenesis 2024-11-15 03:28:11 +01:00
parent c44c67a063
commit 46d7a68034
2 changed files with 4 additions and 101 deletions
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100
BBGE/RenderGrid.cpp
View file

@ -109,12 +109,6 @@ void RenderGrid::reset()
needVBOUpdate = true;
}
void RenderGrid::resetWithAlpha(float a)
{
ResetWithAlpha(grid.data(), grid.width(), grid.height(), a);
needVBOUpdate = true;
}
void RenderGrid::setAlpha(size_t x, size_t y, float a)
{
if (x < grid.width() && y < grid.height())
@ -142,20 +136,9 @@ void RenderGrid::setTexCoords(const TexCoordBox& tc)
void RenderGrid::render(const RenderState& rs) const
{
switch(drawOrder)
{
case GRID_DRAW_WORLDMAP:
if(rs.alpha != 1 || rs.color != Vector(1,1,1))
{
render_WithAlpha(rs);
break;
}
// else fall through
default:
render_Indexed(rs);
}
(void)rs;
vbo.apply();
indexbuf.drawElements(GL_TRIANGLES, trisToDraw);
}
void RenderGrid::renderDebugPoints(const RenderState& rs) const
@ -164,7 +147,7 @@ void RenderGrid::renderDebugPoints(const RenderState& rs) const
glPointSize(2);
glColor3f(1,0,0);
vbo.apply();
glDrawArrays(GL_POINTS, 0, grid.linearsize());
glDrawArrays(GL_POINTS, 0, (GLsizei)grid.linearsize());
}
void RenderGrid::updateVBO()
@ -191,7 +174,6 @@ void RenderGrid::updateVBO()
float v = baseY;
for (size_t y = 0; y < H; y++, v += incY)
//for (size_t y = H; y --> 0; v += incY)
{
float u = baseX;
const Vector *row = grid.row(y);
@ -216,80 +198,6 @@ void RenderGrid::updateVBOIfNecessary()
updateVBO();
}
void RenderGrid::render_Indexed(const RenderState& rs) const
{
(void)rs;
// can't render this here when color/alpha is modulated AND we have colors as part of the vertex data;
// old opengl simply doesn't support this
assert(drawOrder != GRID_DRAW_WORLDMAP || (rs.color == Vector(1,1,1) && rs.alpha == 1));
vbo.apply();
indexbuf.drawElements(GL_TRIANGLES, trisToDraw);
}
void RenderGrid::render_WithAlpha(const RenderState& rs) const
{
const float percentX = fabsf(tc.u2 - tc.u1);
const float percentY = fabsf(tc.v1 - tc.v2);
const float baseX =
(tc.u2 < tc.u1)
? tc.u2 : tc.u1;
const float baseY =
(tc.v2 < tc.v1)
? tc.v2 : tc.v1;
const size_t NX = grid.width()-1;
const size_t NY = grid.height()-1;
// NOTE: These are used to avoid repeated expensive divide operations,
// but they may cause rounding error of around 1 part per million,
// which could in theory cause minor graphical glitches with broken
// OpenGL implementations. --achurch
const float incX = percentX / float(NX);
const float incY = percentY / float(NY);
const Vector c = rs.color;
const float alpha = rs.alpha;
glBegin(GL_QUADS);
float v0 = 1 - percentY + baseY;
float v1 = v0 + incY;
for (size_t y = 0; y < NY; y++, v0 = v1, v1 += incY)
{
float u0 = baseX;
float u1 = u0 + incX;
const Vector *row0 = grid.row(y);
const Vector *row1 = grid.row(y+1);
for (size_t x = 0; x < NX; x++, u0 = u1, u1 += incX)
{
const Vector dg00 = row0[x];
const Vector dg01 = row1[x];
const Vector dg10 = row0[x+1];
const Vector dg11 = row1[x+1];
if (dg00.z != 0 || dg01.z != 0 || dg10.z != 0 || dg11.z != 0)
{
glColor4f(c.x, c.y, c.z, alpha*dg00.z);
glTexCoord2f(u0, v0);
glVertex2f(dg00.x, dg00.y);
glColor4f(c.x, c.y, c.z, alpha*dg01.z);
glTexCoord2f(u0, v1);
glVertex2f(dg01.x, dg01.y);
glColor4f(c.x, c.y, c.z, alpha*dg11.z);
glTexCoord2f(u1, v1);
glVertex2f(dg11.x, dg11.y);
glColor4f(c.x, c.y, c.z, alpha*dg10.z);
glTexCoord2f(u1, v0);
glVertex2f(dg10.x, dg10.y);
}
}
}
glEnd();
}
// -------------------------------------

5
BBGE/RenderGrid.h
View file

@ -12,7 +12,6 @@ enum GridDrawOrder
{
GRID_DRAW_LRTB = 0, // the default. ignores grid.z
GRID_DRAW_LRBT = 1, // Y axis inverted
GRID_DRAW_WORLDMAP = 2, // LRTB order, uses grid.z as alpha
GRID_DRAW_DEFAULT = GRID_DRAW_LRTB
};
@ -37,7 +36,6 @@ public:
void init(size_t w, size_t h, const TexCoordBox& tc);
void reset01();
void reset();
void resetWithAlpha(float a);
void render(const RenderState& rs) const;
void renderDebugPoints(const RenderState& rs) const;
void setAlpha(size_t x, size_t y, float a);
@ -66,9 +64,6 @@ protected:
Array2d<Vector> grid;
TexCoordBox tc;
void render_Indexed(const RenderState& rs) const;
void render_WithAlpha(const RenderState& rs) const;
public:
bool needVBOUpdate;
GridDrawOrder drawOrder;