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Fixed lazy-loading of stencil buffers in Canvases sometimes failing due to uninitialized variables

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This commit is contained in:
Alex Szpakowski
2013-07-16 20:04:10 -03:00
parent 259f15da6f
commit 3725b4122f
4 changed files with 33 additions and 30 deletions
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src/modules/graphics/opengl/Canvas.cpp
+25 -22
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@@ -139,9 +139,7 @@ struct FramebufferStrategyGL3 : public FramebufferStrategy
glBindRenderbuffer(GL_RENDERBUFFER, stencil);
glRenderbufferStorage(GL_RENDERBUFFER, GL_DEPTH_STENCIL, width, height);
glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_STENCIL_ATTACHMENT,
GL_RENDERBUFFER, stencil);
glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT,
glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_DEPTH_STENCIL_ATTACHMENT,
GL_RENDERBUFFER, stencil);
glBindRenderbuffer(GL_RENDERBUFFER, 0);
@@ -153,8 +151,10 @@ struct FramebufferStrategyGL3 : public FramebufferStrategy
virtual void deleteFBO(GLuint framebuffer, GLuint depth_stencil, GLuint img)
{
gl.deleteTexture(img);
glDeleteRenderbuffers(1, &depth_stencil);
glDeleteFramebuffers(1, &framebuffer);
if (depth_stencil != 0)
glDeleteRenderbuffers(1, &depth_stencil);
if (framebuffer != 0)
glDeleteFramebuffers(1, &framebuffer);
}
virtual void bindFBO(GLuint framebuffer)
@@ -192,8 +192,6 @@ struct FramebufferStrategyGL3 : public FramebufferStrategy
glDrawBuffers(drawbuffers.size(), &drawbuffers[0]);
else if (GLEE_ARB_draw_buffers)
glDrawBuffersARB(drawbuffers.size(), &drawbuffers[0]);
else if (GLEE_ATI_draw_buffers)
glDrawBuffersATI(drawbuffers.size(), &drawbuffers[0]);
}
};
@@ -252,8 +250,6 @@ struct FramebufferStrategyPackedEXT : public FramebufferStrategy
width, height);
glFramebufferRenderbufferEXT(GL_FRAMEBUFFER_EXT, GL_STENCIL_ATTACHMENT_EXT,
GL_RENDERBUFFER_EXT, stencil);
glFramebufferRenderbufferEXT(GL_FRAMEBUFFER_EXT, GL_DEPTH_ATTACHMENT_EXT,
GL_RENDERBUFFER_EXT, stencil);
glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, 0);
@@ -264,8 +260,10 @@ struct FramebufferStrategyPackedEXT : public FramebufferStrategy
virtual void deleteFBO(GLuint framebuffer, GLuint depth_stencil, GLuint img)
{
gl.deleteTexture(img);
glDeleteRenderbuffersEXT(1, &depth_stencil);
glDeleteFramebuffersEXT(1, &framebuffer);
if (depth_stencil != 0)
glDeleteRenderbuffersEXT(1, &depth_stencil);
if (framebuffer != 0)
glDeleteFramebuffersEXT(1, &framebuffer);
}
virtual void bindFBO(GLuint framebuffer)
@@ -303,8 +301,6 @@ struct FramebufferStrategyPackedEXT : public FramebufferStrategy
glDrawBuffers(drawbuffers.size(), &drawbuffers[0]);
else if (GLEE_ARB_draw_buffers)
glDrawBuffersARB(drawbuffers.size(), &drawbuffers[0]);
else if (GLEE_ATI_draw_buffers)
glDrawBuffersATI(drawbuffers.size(), &drawbuffers[0]);
}
};
@@ -369,6 +365,9 @@ static int maxDrawBuffers = 0;
Canvas::Canvas(int width, int height, TextureType texture_type)
: width(width)
, height(height)
, fbo(0)
, depth_stencil(0)
, img(0)
, texture_type(texture_type)
{
float w = static_cast<float>(width);
@@ -423,7 +422,7 @@ bool Canvas::isHDRSupported()
bool Canvas::isMultiCanvasSupported()
{
if (!(isSupported() && (GLEE_VERSION_2_0 || GLEE_ARB_draw_buffers || GLEE_ATI_draw_buffers)))
if (!(isSupported() && (GLEE_VERSION_2_0 || GLEE_ARB_draw_buffers)))
return false;
if (maxFBOColorAttachments == 0 || maxDrawBuffers == 0)
@@ -548,8 +547,11 @@ void Canvas::stopGrab()
current = NULL;
}
void Canvas::clear(const Color &c)
void Canvas::clear(Color c)
{
if (strategy == &strategyNone)
return;
GLuint previous = 0;
if (current != this)
@@ -717,8 +719,9 @@ const std::vector<Canvas *> &Canvas::getAttachedCanvases() const
void Canvas::setFilter(const Image::Filter &f)
{
settings.filter = f;
gl.bindTexture(img);
gl.setTextureFilter(f);
settings.filter.anisotropy = gl.setTextureFilter(f);
}
Image::Filter Canvas::getFilter() const
@@ -729,21 +732,24 @@ Image::Filter Canvas::getFilter() const
void Canvas::setWrap(const Image::Wrap &w)
{
settings.wrap = w;
gl.bindTexture(img);
gl.setTextureWrap(w);
}
Image::Wrap Canvas::getWrap() const
{
gl.bindTexture(img);
return gl.getTextureWrap();
return settings.wrap;
}
bool Canvas::loadVolatile()
{
// glTexImage2D is guaranteed to error in this case.
if (width > gl.getMaxTextureSize() || height > gl.getMaxTextureSize())
{
status = GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT;
return false;
}
status = strategy->createFBO(fbo, img, width, height, texture_type);
if (status != GL_FRAMEBUFFER_COMPLETE)
@@ -751,15 +757,12 @@ bool Canvas::loadVolatile()
setFilter(settings.filter);
setWrap(settings.wrap);
Color c(0, 0, 0, 0);
clear(c);
clear(Color(0, 0, 0, 0));
return true;
}
void Canvas::unloadVolatile()
{
settings.filter = getFilter();
settings.wrap = getWrap();
strategy->deleteFBO(fbo, depth_stencil, img);
for (size_t i = 0; i < attachedCanvases.size(); i++)