sid
/
NazaraEngine
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Added RenderTexture::Blit 

Added RenderTexture::GetSize


Former-commit-id: f385ccc39a2051765db9befa3b77f75b17529447
This commit is contained in:
Lynix 2014-01-11 19:10:19 +01:00
parent cbce6e6e64
commit 9bf66e7e16
4 changed files with 100 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
include/Nazara/Renderer/OpenGL.hpp
View File

@ -165,6 +165,7 @@ NAZARA_API extern PFNGLBINDTEXTUREPROC glBindTexture;
NAZARA_API extern PFNGLBINDVERTEXARRAYPROC glBindVertexArray;
NAZARA_API extern PFNGLBLENDFUNCPROC glBlendFunc;
NAZARA_API extern PFNGLBLENDFUNCSEPARATEPROC glBlendFuncSeparate;
NAZARA_API extern PFNGLBLITFRAMEBUFFERPROC glBlitFramebuffer;
NAZARA_API extern PFNGLBUFFERDATAPROC glBufferData;
NAZARA_API extern PFNGLBUFFERSUBDATAPROC glBufferSubData;
NAZARA_API extern PFNGLCLEARPROC glClear;

3
include/Nazara/Renderer/RenderTexture.hpp
View File

@ -37,6 +37,7 @@ class NAZARA_API NzRenderTexture : public NzRenderTarget, NzResourceListener, Nz
unsigned int GetHeight() const;
NzRenderTargetParameters GetParameters() const;
NzVector2ui GetSize() const;
unsigned int GetWidth() const;
bool IsComplete() const;
@ -55,6 +56,8 @@ class NAZARA_API NzRenderTexture : public NzRenderTarget, NzResourceListener, Nz
unsigned int GetOpenGLID() const;
bool HasContext() const override;
static void Blit(NzRenderTexture* src, NzRenderTexture* dst, nzUInt32 buffers = nzRendererBuffer_Color | nzRendererBuffer_Depth | nzRendererBuffer_Stencil, bool bilinearFilter = false);
static void Blit(NzRenderTexture* src, NzRectui srcRect, NzRenderTexture* dst, NzRectui dstRect, nzUInt32 buffers = nzRendererBuffer_Color | nzRendererBuffer_Depth | nzRendererBuffer_Stencil, bool bilinearFilter = false);
static bool IsSupported();
protected:

2
src/Nazara/Renderer/OpenGL.cpp
View File

@ -1057,6 +1057,7 @@ bool NzOpenGL::Initialize()
{
glBindFramebuffer = reinterpret_cast<PFNGLBINDFRAMEBUFFERPROC>(LoadEntry("glBindFramebuffer"));
glBindRenderbuffer = reinterpret_cast<PFNGLBINDRENDERBUFFERPROC>(LoadEntry("glBindRenderbuffer"));
glBlitFramebuffer = reinterpret_cast<PFNGLBLITFRAMEBUFFERPROC>(LoadEntry("glBlitFramebuffer"));
glCheckFramebufferStatus = reinterpret_cast<PFNGLCHECKFRAMEBUFFERSTATUSPROC>(LoadEntry("glCheckFramebufferStatus"));
glDeleteFramebuffers = reinterpret_cast<PFNGLDELETEFRAMEBUFFERSPROC>(LoadEntry("glDeleteFramebuffers"));
glDeleteRenderbuffers = reinterpret_cast<PFNGLDELETERENDERBUFFERSPROC>(LoadEntry("glDeleteRenderbuffers"));
@ -2035,6 +2036,7 @@ PFNGLBINDTEXTUREPROC glBindTexture = nullptr;
PFNGLBINDVERTEXARRAYPROC glBindVertexArray = nullptr;
PFNGLBLENDFUNCPROC glBlendFunc = nullptr;
PFNGLBLENDFUNCSEPARATEPROC glBlendFuncSeparate = nullptr;
PFNGLBLITFRAMEBUFFERPROC glBlitFramebuffer = nullptr;
PFNGLBUFFERDATAPROC glBufferData = nullptr;
PFNGLBUFFERSUBDATAPROC glBufferSubData = nullptr;
PFNGLCLEARPROC glClear = nullptr;

94
src/Nazara/Renderer/RenderTexture.cpp
View File

@ -486,6 +486,22 @@ NzRenderTargetParameters NzRenderTexture::GetParameters() const
return NzRenderTargetParameters();
}
NzVector2ui NzRenderTexture::GetSize() const
{
#if NAZARA_RENDERER_SAFE
if (!m_impl)
{
NazaraError("Render texture not created");
return 0;
}
#endif
if (!m_impl->targetsUpdated)
UpdateTargets();
return NzVector2ui(m_impl->width, m_impl->height);
}
unsigned int NzRenderTexture::GetWidth() const
{
#if NAZARA_RENDERER_SAFE
@ -728,6 +744,84 @@ bool NzRenderTexture::IsSupported()
return NzOpenGL::IsSupported(nzOpenGLExtension_FrameBufferObject);
}
void NzRenderTexture::Blit(NzRenderTexture* src, NzRenderTexture* dst, nzUInt32 buffers, bool bilinearFilter)
{
#if NAZARA_RENDERER_SAFE
if (!src)
{
NazaraError("Invalid source render texture");
return;
}
if (!dst)
{
NazaraError("Invalid source render texture");
return;
}
#endif
Blit(src, src->GetSize(), dst, dst->GetSize(), buffers, bilinearFilter);
}
void NzRenderTexture::Blit(NzRenderTexture* src, NzRectui srcRect, NzRenderTexture* dst, NzRectui dstRect, nzUInt32 buffers, bool bilinearFilter)
{
#if NAZARA_RENDERER_SAFE
if (!src || !src->IsValid())
{
NazaraError("Invalid source render texture");
return;
}
if (srcRect.x+srcRect.width > src->GetWidth() || srcRect.y+srcRect.height > src->GetHeight())
{
NazaraError("Source rectangle dimensions are out of bounds");
return;
}
if (!dst || !dst->IsValid())
{
NazaraError("Invalid source render texture");
return;
}
if (dstRect.x+dstRect.width > dst->GetWidth() || dstRect.y+dstRect.height > dst->GetHeight())
{
NazaraError("Destination rectangle dimensions are out of bounds");
return;
}
if (bilinearFilter && (buffers & nzRendererBuffer_Depth || buffers & nzRendererBuffer_Stencil))
{
NazaraError("Filter cannot be bilinear when blitting depth/stencil buffers");
return;
}
#endif
GLbitfield mask = 0;
if (buffers & nzRendererBuffer_Color)
mask |= GL_COLOR_BUFFER_BIT;
if (buffers & nzRendererBuffer_Depth)
mask |= GL_DEPTH_BUFFER_BIT;
if (buffers & nzRendererBuffer_Stencil)
mask |= GL_STENCIL_BUFFER_BIT;
GLint previousDrawBuffer, previousReadBuffer;
glGetIntegerv(GL_DRAW_FRAMEBUFFER_BINDING, &previousDrawBuffer);
glGetIntegerv(GL_READ_FRAMEBUFFER_BINDING, &previousReadBuffer);
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, dst->GetOpenGLID());
glBindFramebuffer(GL_READ_FRAMEBUFFER, src->GetOpenGLID());
glBlitFramebuffer(srcRect.x, srcRect.y, srcRect.x + srcRect.width, srcRect.y + srcRect.height,
dstRect.x, dstRect.y, dstRect.x + dstRect.width, dstRect.y + dstRect.height,
mask, (bilinearFilter) ? GL_LINEAR : GL_NEAREST);
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, previousDrawBuffer);
glBindFramebuffer(GL_READ_FRAMEBUFFER, previousReadBuffer);
}
bool NzRenderTexture::Activate() const
{
#if NAZARA_RENDERER_SAFE