LOVE/love
1
0
Fork 0
mirror of https://github.com/love2d/love.git synced 2026-08-15 15:51:12 +02:00
Code Issues Packages Projects Releases Wiki Activity

Added love.graphics.setColorMask(r, g, b, a) and love.graphics.getColorMask()

Browse Source 
setColorMask enables or disables specific color components when rendering and clearing the screen.
For example, setColorMask(true, false, true, true) will prevent the green component of the color of all rendered objects from being written to the current frame buffer.
setColorMask is a wrapper for http://www.opengl.org/sdk/docs/man2/xhtml/glColorMask.xml

--HG--
branch : love.graphics.setColorMask
This commit is contained in:
Alex Szpakowski
2013-02-26 11:24:30 -04:00
parent 0be26b7678
commit e5670e69b3
4 changed files with 66 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/modules/graphics/opengl/Graphics.cpp
+24 -2
View File
@@ -86,6 +86,9 @@ DisplayState Graphics::saveState()
if (s.scissor)
glGetIntegerv(GL_SCISSOR_BOX, s.scissorBox);
for (int i = 0; i < 4; i++)
s.colorMask[i] = colorMask[i];
return s;
}
@@ -101,6 +104,7 @@ void Graphics::restoreState(const DisplayState &s)
setScissor(s.scissorBox[0], s.scissorBox[1], s.scissorBox[2], s.scissorBox[3]);
else
setScissor();
setColorMask(s.colorMask[0], s.colorMask[1], s.colorMask[2], s.colorMask[3]);
}
bool Graphics::setMode(int width, int height, bool fullscreen, bool vsync, int fsaa)
@@ -136,6 +140,9 @@ bool Graphics::setMode(int width, int height, bool fullscreen, bool vsync, int f
// "Normal" blending
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
// Enable all color component writes.
setColorMask(true, true, true, true);
// Enable line/point smoothing.
setLineStyle(LINE_SMOOTH);
glEnable(GL_POINT_SMOOTH);
@@ -331,12 +338,12 @@ void Graphics::useStencil(bool invert)
{
glStencilFunc(GL_EQUAL, (int)(!invert), 1); // invert ? 0 : 1
glStencilOp(GL_KEEP, GL_KEEP, GL_KEEP);
glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
setColorMask(colorMask[0], colorMask[1], colorMask[2], colorMask[3]);
}
void Graphics::discardStencil()
{
glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
setColorMask(colorMask[0], colorMask[1], colorMask[2], colorMask[3]);
glDisable(GL_STENCIL_TEST);
}
@@ -500,6 +507,21 @@ Font *Graphics::getFont() const
return currentFont;
}
void Graphics::setColorMask(bool r, bool g, bool b, bool a)
{
colorMask[0] = r;
colorMask[1] = g;
colorMask[2] = b;
colorMask[3] = a;
glColorMask((GLboolean) r, (GLboolean) g, (GLboolean) b, (GLboolean) a);
}
const bool *Graphics::getColorMask() const
{
return colorMask;
}
void Graphics::setBlendMode(Graphics::BlendMode mode)
{
if (GLEE_VERSION_1_4 || GLEE_ARB_imaging)