#include <msp/gl/extensions/arb_draw_buffers.h>
#include <msp/gl/extensions/arb_direct_state_access.h>
+#include <msp/gl/extensions/arb_internalformat_query.h>
+#include <msp/gl/extensions/arb_internalformat_query2.h>
#include <msp/gl/extensions/ext_framebuffer_object.h>
#include <msp/gl/extensions/ext_texture_array.h>
#include <msp/gl/extensions/ext_texture3d.h>
#include <msp/gl/extensions/msp_buffer_control.h>
#include <msp/gl/extensions/khr_debug.h>
+#include <msp/strings/format.h>
#include "error.h"
#include "framebuffer.h"
#include "misc.h"
namespace Msp {
namespace GL {
-void operator<<(LexicalConverter &conv, FramebufferStatus status)
-{
- switch(status)
- {
- case FRAMEBUFFER_INCOMPLETE_ATTACHMENT:
- conv.result("incomplete attachment");
- break;
- case FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT:
- conv.result("missing attachment");
- break;
- case FRAMEBUFFER_INCOMPLETE_DIMENSIONS:
- conv.result("mismatched attachment dimensions");
- break;
- case FRAMEBUFFER_INCOMPLETE_FORMATS:
- conv.result("mismatched attachment formats");
- break;
- case FRAMEBUFFER_INCOMPLETE_DRAW_BUFFER:
- conv.result("missing draw buffer attachment");
- break;
- case FRAMEBUFFER_INCOMPLETE_READ_BUFFER:
- conv.result("missing read buffer attachment");
- break;
- case FRAMEBUFFER_INCOMPLETE_MULTISAMPLE:
- conv.result("mismatched attachment sample counts");
- break;
- case FRAMEBUFFER_INCOMPLETE_LAYER_COUNT:
- conv.result("mismatched attachment layer counts");
- break;
- case FRAMEBUFFER_INCOMPLETE_LAYER_TARGETS:
- conv.result("mismatched attachment layering");
- break;
- case FRAMEBUFFER_UNSUPPORTED:
- conv.result("unsupported");
- break;
- default:
- conv.result(lexical_cast<string, unsigned>(status, "%#x"));
- break;
- }
-}
-
-framebuffer_incomplete::framebuffer_incomplete(FramebufferStatus status):
- runtime_error(lexical_cast<string>(status))
+framebuffer_incomplete::framebuffer_incomplete(const std::string &reason):
+ runtime_error(reason)
{ }
Framebuffer::Framebuffer(unsigned i):
id(i),
- status(FRAMEBUFFER_COMPLETE),
+ status(GL_FRAMEBUFFER_COMPLETE),
dirty(0)
{
if(id)
height = view[3];
}
-Framebuffer::Framebuffer():
- width(0),
- height(0),
- status(FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT),
- dirty(0)
+Framebuffer::Framebuffer()
+{
+ init();
+}
+
+Framebuffer::Framebuffer(FrameAttachment fa)
+{
+ init();
+ set_format(fa);
+}
+
+Framebuffer::Framebuffer(const FrameFormat &f)
+{
+ init();
+ set_format(f);
+}
+
+void Framebuffer::init()
{
static Require _req(EXT_framebuffer_object);
+ width = 0;
+ height = 0;
+ status = GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT;
+ dirty = 0;
+
if(ARB_direct_state_access)
glCreateFramebuffers(1, &id);
else
glDeleteFramebuffers(1, &id);
}
+void Framebuffer::set_format(const FrameFormat &fmt)
+{
+ if(!format.empty())
+ throw invalid_operation("Framebuffer::set_format");
+ if(fmt.empty())
+ throw invalid_argument("Framebuffer::set_format");
+
+ if(ARB_internalformat_query && ARB_internalformat_query2)
+ {
+ unsigned target = (fmt.get_samples()>1 ? GL_TEXTURE_2D_MULTISAMPLE : GL_TEXTURE_2D);
+ for(FrameAttachment a: fmt)
+ {
+ unsigned pf = get_gl_pixelformat(get_attachment_pixelformat(a));
+ int supported = 0;
+ glGetInternalformativ(target, pf, GL_FRAMEBUFFER_RENDERABLE, 1, &supported);
+ if(supported!=GL_FULL_SUPPORT)
+ throw invalid_argument("Framebuffer::set_format");
+ }
+ }
+
+ format = fmt;
+ attachments.resize(format.size());
+}
+
void Framebuffer::update() const
{
vector<GLenum> color_bufs;
- color_bufs.reserve(attachments.size());
- for(unsigned i=0; i<attachments.size(); ++i)
+ color_bufs.reserve(format.size());
+ unsigned i = 0;
+ for(FrameAttachment a: format)
{
- const Attachment &attch = attachments[i];
+ GLenum gl_attach_point = get_gl_attachment(a);
if(dirty&(1<<i))
{
+ const Attachment &attch = attachments[i];
if(attch.tex)
{
- GLenum type = attch.tex->get_target();
if(ARB_direct_state_access)
{
- if(type==GL_TEXTURE_2D || type==GL_TEXTURE_2D_MULTISAMPLE || attch.layer<0)
- glNamedFramebufferTexture(id, attch.attachment, attch.tex->get_id(), attch.level);
+ if(attch.tex->target==GL_TEXTURE_2D || attch.tex->target==GL_TEXTURE_2D_MULTISAMPLE || attch.layer<0)
+ glNamedFramebufferTexture(id, gl_attach_point, attch.tex->id, attch.level);
else
- glNamedFramebufferTextureLayer(id, attch.attachment, attch.tex->get_id(), attch.level, attch.layer);
+ glNamedFramebufferTextureLayer(id, gl_attach_point, attch.tex->id, attch.level, attch.layer);
}
- else if(type==GL_TEXTURE_2D || type==GL_TEXTURE_2D_MULTISAMPLE)
- glFramebufferTexture2D(GL_FRAMEBUFFER, attch.attachment, type, attch.tex->get_id(), attch.level);
+ else if(attch.tex->target==GL_TEXTURE_2D || attch.tex->target==GL_TEXTURE_2D_MULTISAMPLE)
+ glFramebufferTexture2D(GL_FRAMEBUFFER, gl_attach_point, attch.tex->target, attch.tex->id, attch.level);
else if(attch.layer<0)
- glFramebufferTexture(GL_FRAMEBUFFER, attch.attachment, attch.tex->get_id(), attch.level);
- else if(type==GL_TEXTURE_2D_ARRAY)
- glFramebufferTextureLayer(GL_FRAMEBUFFER, attch.attachment, attch.tex->get_id(), attch.level, attch.layer);
- else if(type==GL_TEXTURE_3D)
- glFramebufferTexture3D(GL_FRAMEBUFFER, attch.attachment, type, attch.tex->get_id(), attch.level, attch.layer);
- else if(type==GL_TEXTURE_CUBE_MAP)
- glFramebufferTexture2D(GL_FRAMEBUFFER, attch.attachment, TextureCube::enumerate_faces(attch.layer), attch.tex->get_id(), attch.level);
+ glFramebufferTexture(GL_FRAMEBUFFER, gl_attach_point, attch.tex->id, attch.level);
+ else if(attch.tex->target==GL_TEXTURE_2D_ARRAY)
+ glFramebufferTextureLayer(GL_FRAMEBUFFER, gl_attach_point, attch.tex->id, attch.level, attch.layer);
+ else if(attch.tex->target==GL_TEXTURE_3D)
+ glFramebufferTexture3D(GL_FRAMEBUFFER, gl_attach_point, attch.tex->target, attch.tex->id, attch.level, attch.layer);
+ else if(attch.tex->target==GL_TEXTURE_CUBE_MAP)
+ glFramebufferTexture2D(GL_FRAMEBUFFER, gl_attach_point, get_gl_cube_face(static_cast<TextureCubeFace>(attch.layer)), attch.tex->id, attch.level);
}
else if(ARB_direct_state_access)
- glNamedFramebufferTexture(id, attch.attachment, 0, 0);
+ glNamedFramebufferTexture(id, gl_attach_point, 0, 0);
else
- glFramebufferTexture2D(GL_FRAMEBUFFER, attch.attachment, GL_TEXTURE_2D, 0, 0);
+ glFramebufferTexture2D(GL_FRAMEBUFFER, gl_attach_point, GL_TEXTURE_2D, 0, 0);
}
- if(attch.attachment>=COLOR_ATTACHMENT0 && attch.attachment<=COLOR_ATTACHMENT3)
- color_bufs.push_back(attch.attachment);
+ if(gl_attach_point!=GL_DEPTH_ATTACHMENT && gl_attach_point!=GL_STENCIL_ATTACHMENT)
+ color_bufs.push_back(gl_attach_point);
+
+ ++i;
}
if(color_bufs.size()>1)
}
if(ARB_direct_state_access)
- status = static_cast<FramebufferStatus>(glCheckNamedFramebufferStatus(id, GL_FRAMEBUFFER));
+ status = glCheckNamedFramebufferStatus(id, GL_FRAMEBUFFER);
else
- status = static_cast<FramebufferStatus>(glCheckFramebufferStatus(GL_FRAMEBUFFER));
+ status = glCheckFramebufferStatus(GL_FRAMEBUFFER);
dirty = 0;
}
void Framebuffer::check_size()
{
- for(vector<Attachment>::iterator i=attachments.begin(); i!=attachments.end(); ++i)
- if(i->tex)
+ bool first = true;
+ for(Attachment &a: attachments)
+ if(a.tex)
{
- GLenum type = i->tex->get_target();
- if(type==GL_TEXTURE_2D)
+ unsigned w = 0;
+ unsigned h = 0;
+ if(a.tex->target==GL_TEXTURE_2D)
{
- Texture2D *tex = static_cast<Texture2D *>(i->tex);
- width = max(tex->get_width()>>i->level, 1U);
- height = max(tex->get_height()>>i->level, 1U);
+ Texture2D *tex = static_cast<Texture2D *>(a.tex);
+ w = max(tex->get_width()>>a.level, 1U);
+ h = max(tex->get_height()>>a.level, 1U);
}
- else if(type==GL_TEXTURE_2D_MULTISAMPLE)
+ else if(a.tex->target==GL_TEXTURE_2D_MULTISAMPLE)
{
- Texture2DMultisample *tex = static_cast<Texture2DMultisample *>(i->tex);
- width = tex->get_width();
- height = tex->get_height();
+ Texture2DMultisample *tex = static_cast<Texture2DMultisample *>(a.tex);
+ w = tex->get_width();
+ h = tex->get_height();
}
- else if(type==GL_TEXTURE_3D || type==GL_TEXTURE_2D_ARRAY)
+ else if(a.tex->target==GL_TEXTURE_3D || a.tex->target==GL_TEXTURE_2D_ARRAY)
{
- Texture3D *tex = static_cast<Texture3D *>(i->tex);
- width = max(tex->get_width()>>i->level, 1U);
- height = max(tex->get_height()>>i->level, 1U);
+ Texture3D *tex = static_cast<Texture3D *>(a.tex);
+ w = max(tex->get_width()>>a.level, 1U);
+ h = max(tex->get_height()>>a.level, 1U);
}
- else if(type==GL_TEXTURE_CUBE_MAP)
+ else if(a.tex->target==GL_TEXTURE_CUBE_MAP)
{
- width = max(static_cast<TextureCube *>(i->tex)->get_size()>>i->level, 1U);
- height = width;
+ w = max(static_cast<TextureCube *>(a.tex)->get_size()>>a.level, 1U);
+ h = w;
}
- break;
- }
-}
-unsigned Framebuffer::get_attachment_index(FramebufferAttachment attch)
-{
- for(unsigned i=0; i<attachments.size(); ++i)
- if(attachments[i].attachment==attch)
- return i;
- attachments.push_back(Attachment(attch));
- return attachments.size()-1;
+ if(first)
+ {
+ width = w;
+ height = h;
+ first = false;
+ }
+ else
+ {
+ width = min(width, w);
+ height = min(height, h);
+ }
+ }
}
-void Framebuffer::set_attachment(FrameAttachment attch, Texture &tex, unsigned level, int layer)
+void Framebuffer::set_attachment(FrameAttachment attch, Texture &tex, unsigned level, int layer, unsigned samples)
{
- if(!id)
+ if(format.empty() || !id)
throw invalid_operation("Framebuffer::attach");
- unsigned i = get_attachment_index(attch);
- attachments[i].set(tex, level, layer);
- dirty |= 1<<i;
- check_size();
+ if((format.get_samples()>1 && samples!=format.get_samples()) || (format.get_samples()==1 && samples))
+ throw incompatible_data("Framebuffer::attach");
+
+ unsigned i = 0;
+ for(FrameAttachment a: format)
+ {
+ if(a==attch)
+ {
+ attachments[i].set(tex, level, layer);
+ dirty |= 1<<i;
+ check_size();
+ return;
+ }
+ ++i;
+ }
+
+ throw incompatible_data("Framebuffer::attach");
}
-void Framebuffer::attach(FramebufferAttachment attch, Texture2D &tex, unsigned level)
+void Framebuffer::attach(FrameAttachment attch, Texture2D &tex, unsigned level)
{
- tex.allocate(level);
- set_attachment(attch, tex, level, 0);
+ set_attachment(make_typed_attachment(attch, tex.get_format()), tex, level, 0, 0);
}
-void Framebuffer::attach(FramebufferAttachment attch, Texture2DMultisample &tex)
+void Framebuffer::attach(FrameAttachment attch, Texture2DMultisample &tex)
{
- set_attachment(attch, tex, 0, 0);
+ set_attachment(make_typed_attachment(attch, tex.get_format()), tex, 0, 0, tex.get_samples());
}
-void Framebuffer::attach(FramebufferAttachment attch, Texture3D &tex, unsigned layer, unsigned level)
+void Framebuffer::attach(FrameAttachment attch, Texture3D &tex, unsigned layer, unsigned level)
{
- tex.allocate(level);
- set_attachment(attch, tex, level, layer);
+ set_attachment(make_typed_attachment(attch, tex.get_format()), tex, level, layer, 0);
}
-void Framebuffer::attach(FramebufferAttachment attch, TextureCube &tex, TextureCubeFace face, unsigned level)
+void Framebuffer::attach(FrameAttachment attch, TextureCube &tex, TextureCubeFace face, unsigned level)
{
- tex.allocate(level);
- set_attachment(attch, tex, level, TextureCube::get_face_index(face));
+ set_attachment(make_typed_attachment(attch, tex.get_format()), tex, level, face, 0);
}
-void Framebuffer::attach_layered(FramebufferAttachment attch, Texture3D &tex, unsigned level)
+void Framebuffer::attach_layered(FrameAttachment attch, Texture3D &tex, unsigned level)
{
static Require _req(ARB_geometry_shader4);
- tex.allocate(level);
- set_attachment(attch, tex, level, -1);
+ set_attachment(make_typed_attachment(attch, tex.get_format()), tex, level, -1, 0);
}
-void Framebuffer::attach_layered(FramebufferAttachment attch, TextureCube &tex, unsigned level)
+void Framebuffer::attach_layered(FrameAttachment attch, TextureCube &tex, unsigned level)
{
static Require _req(ARB_geometry_shader4);
- tex.allocate(level);
- set_attachment(attch, tex, level, -1);
+ set_attachment(make_typed_attachment(attch, tex.get_format()), tex, level, -1, 0);
}
-void Framebuffer::detach(FramebufferAttachment attch)
+void Framebuffer::detach(FrameAttachment attch)
{
if(!id)
throw invalid_operation("Framebuffer::detach");
- unsigned i = get_attachment_index(attch);
- attachments[i].clear();
- dirty |= 1<<i;
- check_size();
+ int i = format.index(attch);
+ if(i>=0)
+ {
+ attachments[i].clear();
+ dirty |= 1<<i;
+ check_size();
+ }
}
void Framebuffer::resize(const WindowView &view)
void Framebuffer::require_complete() const
{
- if(status!=FRAMEBUFFER_COMPLETE)
- throw framebuffer_incomplete(status);
+ if(!id)
+ return;
+
+ bool layered = (!attachments.empty() && attachments.front().layer<0);
+ for(const Attachment &a: attachments)
+ {
+ if(!a.tex)
+ throw framebuffer_incomplete("missing attachment");
+ if(layered!=(a.layer<0))
+ throw framebuffer_incomplete("inconsistent layering");
+ }
+
+ if(status==GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT)
+ throw framebuffer_incomplete("incomplete or unsupported attachment");
+ if(status==GL_FRAMEBUFFER_UNSUPPORTED)
+ throw framebuffer_incomplete("unsupported configuration");
+ if(status!=GL_FRAMEBUFFER_COMPLETE)
+ throw framebuffer_incomplete(Msp::format("incomplete (%#x)", status));
}
void Framebuffer::set_debug_name(const string &name)
}
-Framebuffer::Attachment::Attachment(FramebufferAttachment a):
- attachment(a),
+Framebuffer::Attachment::Attachment():
tex(0),
level(0),
layer(0)
projects / libs / gl.git / blobdiff