/**
* Deattaches an attachment from the framebuffer
*/
void FBO::Unattach(const GLenum attachment)
{
GLuint target;
glGetFramebufferAttachmentParameterivEXT(GL_FRAMEBUFFER_EXT, attachment,
GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE_EXT,
(GLint*)&target);
if (target==GL_RENDERBUFFER_EXT) {
//! check if the RBO was created via FBO::CreateRenderBuffer()
GLuint id;
glGetFramebufferAttachmentParameterivEXT(GL_FRAMEBUFFER_EXT, attachment,
GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME_EXT,
(GLint*)&id);
glFramebufferRenderbufferEXT(GL_FRAMEBUFFER_EXT, attachment, GL_RENDERBUFFER_EXT, 0);
for (std::vector<GLuint>::iterator ri=myRBOs.begin(); ri!=myRBOs.end(); ++ri) {
if (*ri == id) {
glDeleteRenderbuffersEXT(1, &(*ri));
myRBOs.erase(ri);
break;
}
}
} else {
glFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, attachment, GL_TEXTURE_2D, 0, 0);
}
}
void WebGraphicsContext3DDefaultImpl::getFramebufferAttachmentParameteriv(unsigned long target, unsigned long attachment,
unsigned long pname, int* value)
{
makeContextCurrent();
if (attachment == GL_DEPTH_STENCIL_ATTACHMENT)
attachment = GL_DEPTH_ATTACHMENT; // Or GL_STENCIL_ATTACHMENT, either works.
glGetFramebufferAttachmentParameterivEXT(target, attachment, pname, value);
}
inline void VL_glGetFramebufferAttachmentParameteriv(GLenum target, GLenum attachment, GLenum pname, GLint *params)
{
if (glGetFramebufferAttachmentParameteriv)
glGetFramebufferAttachmentParameteriv(target,attachment,pname,params);
else
if (glGetFramebufferAttachmentParameterivEXT)
glGetFramebufferAttachmentParameterivEXT(target,attachment,pname,params);
else
VL_UNSUPPORTED_FUNC();
}
GLuint GlFramebufferObject::getAttachmentID(GLenum attachment) {
FboBinder b(_handle);
GLint id = 0;
glGetFramebufferAttachmentParameterivEXT(GL_FRAMEBUFFER_EXT, attachment,
GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME_EXT,
&id);
return GLuint(id);
}
GLenum GlFramebufferObject::getAttachmentType(GLenum attachment) {
FboBinder b(_handle);
GLint type = 0;
glGetFramebufferAttachmentParameterivEXT(GL_FRAMEBUFFER_EXT, attachment,
GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE_EXT,
&type);
return GLenum(type);
}
/**
* Run a check and output any errors.
*/
bool SoXipFboAttachColor3D::checkFramebufferStatus()
{
bool isOk = false;
int db[16] = {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};
int tp[16] = {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};
GLenum status = (GLenum)glCheckFramebufferStatusEXT(GL_FRAMEBUFFER_EXT);
switch(status) {
case GL_FRAMEBUFFER_COMPLETE_EXT:
isOk = true;
break;
case GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT:
SoDebugError::post("SoXipFboAttachColor3D", "GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT");
break;
case GL_FRAMEBUFFER_UNSUPPORTED_EXT:
SoDebugError::post("SoXipFboAttachColor3D", "GL_FRAMEBUFFER_UNSUPPORTED_EXT");
break;
case GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT_EXT:
SoDebugError::post("SoXipFboAttachColor3D", "GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT_EXT");
break;
case GL_FRAMEBUFFER_INCOMPLETE_DIMENSIONS_EXT:
SoDebugError::post("SoXipFboAttachColor3D", "GL_FRAMEBUFFER_INCOMPLETE_DIMENSIONS_EXT");
break;
case GL_FRAMEBUFFER_INCOMPLETE_FORMATS_EXT:
SoDebugError::post("SoXipFboAttachColor3D", "GL_FRAMEBUFFER_INCOMPLETE_FORMATS_EXT");
break;
case GL_FRAMEBUFFER_INCOMPLETE_DRAW_BUFFER_EXT:
// Extract buffer setup
for (int i = 0; i < mMaxAttachments; i++)
glGetIntegerv(GL_DRAW_BUFFER0 + i, db + i);
// Extract type setup
for (int i = 0; i < mMaxAttachments; i++)
glGetFramebufferAttachmentParameterivEXT(GL_FRAMEBUFFER_EXT,
GL_COLOR_ATTACHMENT0_EXT + i,
GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE_EXT,
tp + i);
// Print
SoDebugError::post("SoXipFboAttachColor3D", "Incomplete Draw Buffer: draw (%d %d %d %d) type (%d %d %d %d)",
db[0], db[1], db[2], db[3], tp[0], tp[1], tp[2], tp[3]);
break;
case GL_FRAMEBUFFER_INCOMPLETE_READ_BUFFER_EXT:
SoDebugError::post("SoXipFboAttachColor3D", "GL_FRAMEBUFFER_INCOMPLETE_READ_BUFFER_EXT");
break;
default:
SoDebugError::post("SoXipFboAttachColor3D", "UNKNOWN frambuffer error %i", status);
}
return isOk;
}
///////////////////////////////////////////////////////////////////////////////
// print out the FBO infos
///////////////////////////////////////////////////////////////////////////////
void PrintFramebufferInfo()
{
cout << "\n***** FBO STATUS *****\n";
// print max # of colorbuffers supported by FBO
int colorBufferCount = 0;
glGetIntegerv(GL_MAX_COLOR_ATTACHMENTS_EXT, &colorBufferCount);
cout << "Max Number of Color Buffer Attachment Points: " << colorBufferCount << endl;
int objectType;
int objectId;
// print info of the colorbuffer attachable image
for(int i = 0; i < colorBufferCount; ++i)
{
glGetFramebufferAttachmentParameterivEXT(GL_FRAMEBUFFER_EXT,
GL_COLOR_ATTACHMENT0_EXT+i,
GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE_EXT,
&objectType);
if(objectType != GL_NONE)
{
glGetFramebufferAttachmentParameterivEXT(GL_FRAMEBUFFER_EXT,
GL_COLOR_ATTACHMENT0_EXT+i,
GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME_EXT,
&objectId);
std::string formatName;
cout << "Color Attachment " << i << ": ";
if(objectType == GL_TEXTURE)
cout << "GL_TEXTURE, " << GetTextureParameters(objectId) << endl;
else if(objectType == GL_RENDERBUFFER_EXT)
cout << "GL_RENDERBUFFER_EXT, " << GetRenderbufferParameters(objectId) << endl;
}
}
// print info of the depthbuffer attachable image
glGetFramebufferAttachmentParameterivEXT(GL_FRAMEBUFFER_EXT,
GL_DEPTH_ATTACHMENT_EXT,
GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE_EXT,
&objectType);
if(objectType != GL_NONE)
{
glGetFramebufferAttachmentParameterivEXT(GL_FRAMEBUFFER_EXT,
GL_DEPTH_ATTACHMENT_EXT,
GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME_EXT,
&objectId);
cout << "Depth Attachment: ";
switch(objectType)
{
case GL_TEXTURE:
cout << "GL_TEXTURE, " << GetTextureParameters(objectId) << endl;
break;
case GL_RENDERBUFFER_EXT:
cout << "GL_RENDERBUFFER_EXT, " << GetRenderbufferParameters(objectId) << endl;
break;
}
}
// print info of the stencilbuffer attachable image
glGetFramebufferAttachmentParameterivEXT(GL_FRAMEBUFFER_EXT,
GL_STENCIL_ATTACHMENT_EXT,
GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE_EXT,
&objectType);
if(objectType != GL_NONE)
{
glGetFramebufferAttachmentParameterivEXT(GL_FRAMEBUFFER_EXT,
GL_STENCIL_ATTACHMENT_EXT,
GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME_EXT,
&objectId);
cout << "Stencil Attachment: ";
switch(objectType)
{
case GL_TEXTURE:
cout << "GL_TEXTURE, " << GetTextureParameters(objectId) << endl;
break;
case GL_RENDERBUFFER_EXT:
cout << "GL_RENDERBUFFER_EXT, " << GetRenderbufferParameters(objectId) << endl;
break;
}
}
cout << endl;
}
JNIEXPORT void JNICALL Java_org_lwjgl_opengl_EXTFramebufferObject_nglGetFramebufferAttachmentParameterivEXT__IIIJ(JNIEnv *__env, jclass clazz, jint target, jint attachment, jint pname, jlong paramsAddress) {
glGetFramebufferAttachmentParameterivEXTPROC glGetFramebufferAttachmentParameterivEXT = (glGetFramebufferAttachmentParameterivEXTPROC)tlsGetFunction(1713);
intptr_t params = (intptr_t)paramsAddress;
UNUSED_PARAM(clazz)
glGetFramebufferAttachmentParameterivEXT(target, attachment, pname, params);
}
void get_frame_buffer_attachment_parameter(GLenum target, GLenum attachment, GLenum pname, GLint *params) {
glGetFramebufferAttachmentParameterivEXT(target, attachment, pname, params);
CHECK_GL_ERROR();
}
static GLboolean
render_and_check_textures(GLenum internal_format)
{
GLuint rgba_fb;
GLuint other_fb;
float rgba_image[4 * 64 * 64];
float other_image[4 * 64 * 64];
GLboolean has_green;
GLuint vs;
GLuint fs;
GLint scale_loc;
GLint bias_loc;
float scale;
float bias;
piglit_require_extension("GL_EXT_framebuffer_object");
piglit_require_extension("GL_ARB_texture_rg");
piglit_require_extension("GL_ARB_texture_non_power_of_two");
has_green = GL_FALSE;
scale = 1.0;
bias = 0.0;
switch (internal_format) {
case GL_RG:
case GL_RG8:
case GL_RG16:
has_green = GL_TRUE;
/* FALLTHROUGH */
case GL_RED:
case GL_R8:
case GL_R16:
break;
case GL_RG16F:
has_green = GL_TRUE;
/* FALLTHROUGH */
case GL_R16F:
piglit_require_extension("GL_ARB_half_float_pixel");
/* FALLTHROUGH */
case GL_RG32F:
has_green = GL_TRUE;
/* FALLTHROUGH */
case GL_R32F:
scale = 511.0;
piglit_require_extension("GL_ARB_texture_float");
break;
case GL_RG_INTEGER:
case GL_RG8I:
case GL_RG16I:
case GL_RG32I:
has_green = GL_TRUE;
/* FALLTHROUGH */
case GL_R8I:
case GL_R16I:
case GL_R32I:
bias = -100.0;
scale = 511.0;
piglit_require_extension("GL_EXT_texture_integer");
break;
case GL_RG8UI:
case GL_RG16UI:
case GL_RG32UI:
has_green = GL_TRUE;
/* FALLTHROUGH */
case GL_R16UI:
case GL_R32UI:
scale = 511.0;
piglit_require_extension("GL_EXT_texture_integer");
break;
case GL_RG_SNORM:
case GL_RG8_SNORM:
case GL_RG16_SNORM:
has_green = GL_TRUE;
/* FALLTHROUGH */
case GL_RED_SNORM:
case GL_R8_SNORM:
case GL_R16_SNORM:
scale = 0.5;
bias = -0.5;
piglit_require_extension("GL_EXT_texture_snorm");
break;
default:
fprintf(stderr, "invalid format 0x%04x\n", internal_format);
piglit_report_result(PIGLIT_FAIL);
break;
}
glVertexAttribPointer(0, 2, GL_FLOAT, GL_FALSE,
2 * sizeof(GLfloat), positions);
glVertexAttribPointer(1, 4, GL_FLOAT, GL_FALSE,
4 * sizeof(GLfloat), colors);
glEnableVertexAttribArray(0);
glEnableVertexAttribArray(1);
vs = piglit_compile_shader_text(GL_VERTEX_SHADER, vert_code);
fs = piglit_compile_shader_text(GL_FRAGMENT_SHADER, frag_code);
fbo_program = piglit_link_simple_program(vs, fs);
glBindAttribLocation(fbo_program, 0, "position");
glBindAttribLocation(fbo_program, 1, "color");
glLinkProgram(fbo_program);
if (!piglit_link_check_status(fbo_program))
piglit_report_result(PIGLIT_FAIL);
scale_loc = glGetUniformLocation(fbo_program, "scale");
if (scale_loc < 0) {
fprintf(stderr,
"couldn't get uniform location for \"scale\"\n");
piglit_report_result(PIGLIT_FAIL);
}
bias_loc = glGetUniformLocation(fbo_program, "bias");
if (bias_loc < 0) {
fprintf(stderr,
"couldn't get uniform location for \"bias\"\n");
piglit_report_result(PIGLIT_FAIL);
}
glUseProgram(fbo_program);
glUniform1f(scale_loc, scale);
glUniform1f(bias_loc, bias);
/* Draw the reference image to the RGBA texture.
*/
rgba_fb = create_fbo(64, 64, GL_RGBA);
glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, rgba_fb);
glViewport(0, 0, 64, 64);
glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
glGetFramebufferAttachmentParameterivEXT(GL_FRAMEBUFFER_EXT,
GL_COLOR_ATTACHMENT0_EXT,
GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME_EXT,
(GLint *) &rgba_tex);
glBindTexture(GL_TEXTURE_2D, rgba_tex);
glGetTexImage(GL_TEXTURE_2D, 0, GL_RGBA, GL_FLOAT, rgba_image);
/* Draw the comparison image to the other texture.
*/
other_fb = create_fbo(64, 64, internal_format);
glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, other_fb);
glViewport(0, 0, 64, 64);
glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
glGetFramebufferAttachmentParameterivEXT(GL_FRAMEBUFFER_EXT,
GL_COLOR_ATTACHMENT0_EXT,
GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME_EXT,
(GLint *) &other_tex);
glBindTexture(GL_TEXTURE_2D, other_tex);
glGetTexImage(GL_TEXTURE_2D, 0, GL_RGBA, GL_FLOAT, other_image);
glUseProgram(0);
glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, piglit_winsys_fbo);
glViewport(0, 0, piglit_width, piglit_height);
return compare_texture(rgba_image, other_image,
internal_format, GL_RGBA,
64 * 64, has_green);
}
PsychError SCREENBeginOpenGL(void)
{
static char useString[] = "Screen('BeginOpenGL', windowPtr [, sharecontext=0]);";
static char synopsisString[] = "Prepare window 'windowPtr' for OpenGL rendering by external OpenGL code. "
"This allows to use OpenGL drawing routines other than the ones implemented "
"in Screen() to draw to a Psychtoolbox onscreen- or offscreen window via execution of "
"OpenGL commands. Typical clients of this function are mogl (Richard F. Murrays OpenGL for Matlab wrapper), "
"the new Eyelink-Toolbox and third party Matlab Mex-Files which contain OpenGL rendering routines. "
"You *have to* call this command once before using any of those external drawing commands for the window. "
"After drawing, you *must* switch back to PTB's rendering via the Screen('EndOpenGL', windowPtr); command. "
"Normally, you won't provide the optional flag 'sharecontext', so PTB will automatically isolate the OpenGL "
"state of your code from its internal state. However, if you provide sharecontext=1, then PTB will allow "
"your code to use and affect PTBs internal context. Only do this if you really know what you're doing! "
"If you provide sharecontext=2 then PTB will give you your own private context, but it will synchronize "
"the state of that context with its internal state - Seldomly needed, but here for your convenience. "
"The context state isolation is as strict as possible without seriously affecting performance and functionality: "
"All OpenGL context state is separated, with two exceptions: The framebuffer binding (if any) is always synchronized "
"with PTB (and reset to zero when calling 'EndOpenGL' or another Screen command) to allow external code to transparently "
"render into PTBs internal framebuffers - Needed for the imaging pipeline to work. Ressources like textures, display lists, "
"FBOs, VBOs, PBOs and GLSL shaders are shared between PTB and your code as well for efficiency reasons. Both types of "
"ressource sharing shouldn't be a problem, because either you are a beginner or advanced OpenGL programmer and won't use "
"those facilities anyway, or you are an expert user - in which case you'll know how to prevent any conflicts easily.";
static char seeAlsoString[] = "EndOpenGL SetOpenGLTexture GetOpenGLTexture moglcore";
PsychWindowRecordType *windowRecord;
GLint fboid, coltexid, ztexid, stexid;
//all sub functions should have these two lines
PsychPushHelp(useString, synopsisString,seeAlsoString);
if(PsychIsGiveHelp()){PsychGiveHelp();return(PsychError_none);};
//check for superfluous arguments
PsychErrorExit(PsychCapNumInputArgs(2)); // The maximum number of inputs
PsychErrorExit(PsychRequireNumInputArgs(1)); // Number of required inputs.
PsychErrorExit(PsychCapNumOutputArgs(0)); // The maximum number of outputs
//get the window record from the window record argument and get info from the window record
PsychAllocInWindowRecordArg(kPsychUseDefaultArgPosition, TRUE, &windowRecord);
// Already in userspace mode?
if (PsychIsUserspaceRendering()) PsychErrorExitMsg(PsychError_user, "Tried to call Screen('BeginOpenGL'), but userspace rendering is already active! Missing or mismatched Screen('EndOpenGL')? Check your code.");
// (Optional) context sharing flag provided?
sharecontext = 0;
PsychCopyInIntegerArg(2, FALSE, &sharecontext);
if (sharecontext<0 || sharecontext>2) PsychErrorExitMsg(PsychError_user, "Invalid value for 'sharecontext' provided. Not in range 0 to 2.");
// Master override: If context isolation is disabled then we use the PTB internal context...
if (PsychPrefStateGet_ConserveVRAM() & kPsychDisableContextIsolation) sharecontext = 1;
// Set it as drawing target: This will set up the proper FBO bindings as well:
PsychSetDrawingTarget(windowRecord);
// Store it as a reference for later 'EndOpenGL' call:
preswitchWindowRecord = windowRecord;
// Userspace wants its own private rendering context, optionally updated to match PTBs internal state?
if (sharecontext == 0 || sharecontext == 2) {
// Yes. This is the normal case for 3D rendering. MOGLs and PTBs contexts are separated to
// increase robustness, only ressources like textures, display lists, PBO's, VBO's, FBO's
// and GLSL shaders are shared, but not the current renderstate.
// Make sure 3D rendering is globally enabled, otherwise this is considered a userspace bug:
if (PsychPrefStateGet_3DGfx()==0) PsychErrorExitMsg(PsychError_user, "Tried to call 'BeginOpenGL' for external rendering, but 3D rendering not globally enabled! Call 'InitializeMatlabOpenGL' at the beginning of your script!!");
// Query current FBO binding. We need to manually transfer this to the userspace context, so
// it can render into our window:
if (glBindFramebufferEXT) {
fboid = 0;
glGetIntegerv(GL_FRAMEBUFFER_BINDING_EXT, &fboid);
if (fboid>0) {
// Query attachments of FBO:
glGetFramebufferAttachmentParameterivEXT(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT, GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME_EXT, &coltexid);
glGetFramebufferAttachmentParameterivEXT(GL_FRAMEBUFFER_EXT, GL_DEPTH_ATTACHMENT_EXT, GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME_EXT, &ztexid);
glGetFramebufferAttachmentParameterivEXT(GL_FRAMEBUFFER_EXT, GL_STENCIL_ATTACHMENT_EXT, GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME_EXT, &stexid);
}
}
// Flush our context before context switch:
glFlush();
// Unbind possible FBOs, so system FB is active in our context:
if (glBindFramebufferEXT && (fboid > 0)) {
glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0);
glFlush();
}
// Switch to userspace context for this window, optionally sync state with PTBs context:
PsychOSSetUserGLContext(windowRecord, (sharecontext==2) ? TRUE : FALSE);
// All following ops apply to the usercontext, not our internal context:
// Manually establish proper FBO binding for userspace. This will get reset automaticaly on back-transition
// inside PsychSetGLContext on its first invocation. If we are in non-imaging mode then there's nothing to do.
if (glBindFramebufferEXT && (fboid > 0)) {
if (!glIsFramebufferEXT(fboid)) {
// Special case: Need to bind a special FBO and the underlying OpenGL driver is faulty,
// i.e. it doesn't share FBO names accross our OpenGL contexts as it should according to
// spec.: We manually create a clone of our internal FBO - Create an FBO in the userspace
// context with the same FBO handle, then manually reattach the proper attachments...
if (PsychPrefStateGet_Verbosity()>1) printf("PTB-WARNING: Faulty graphics driver - FBO sharing doesn't work properly, trying work-around. Update your drivers as soon as possible!\n");
glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, fboid);
glFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT, GL_TEXTURE_RECTANGLE_EXT, coltexid, 0);
glFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, GL_DEPTH_ATTACHMENT_EXT, GL_TEXTURE_RECTANGLE_EXT, ztexid, 0);
glFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, GL_STENCIL_ATTACHMENT_EXT, GL_TEXTURE_RECTANGLE_EXT, stexid, 0);
if (GL_FRAMEBUFFER_COMPLETE_EXT != glCheckFramebufferStatusEXT(GL_FRAMEBUFFER_EXT)) {
// Game over :(
PsychErrorExitMsg(PsychError_internal, "Graphics driver malfunction: Failed to clone PTBs internal FBO for userspace GLContext inside SCREENBeginOpenGL as part of workaround code! Upgrade your gfx-drivers!!");
}
// If we reach this point, then the workaround for the worst OS in existence has worked.
}
else {
// Need to bind a special FBO and the system works correctly - no workaround needed. Just bind it in new context:
glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, fboid);
}
}
// Is this the first time that the userspace rendering context of this
// onscreen window is selected for real userspace rendering?
if (windowRecord->needsViewportSetup && PsychIsOnscreenWindow(windowRecord)) {
// Yes. Need to perform one-time setup actions for this context:
windowRecord->needsViewportSetup = FALSE;
// Need to setup glViewPort, scissor rectangle, projection and modelview
// matrices to values that match the windows client rectangle. We need to
// do this here because some imaging pipeline display modes, e.g, stereomodes
// for top-bottom stereo or dualview stereo may have altered the useable client
// rendering area after the context was initially created. OpenGL spec states that
// at least the viewport and scissor rectangles are set to the full client window
// area at first bind of a context to its drawable, so we emulate this here on first
// 'BeginOpenGL' to avoid unpleasant surprises for unsuspecting users:
PsychSetupView(windowRecord, FALSE);
}
// Running without imaging pipeline and a stereo mode is active?
if ((windowRecord->stereomode) > 0 && !(windowRecord->imagingMode & kPsychNeedFastBackingStore)) {
// Perform setup work for stereo drawbuffers in fixed function mode:
PsychSwitchFixedFunctionStereoDrawbuffer(windowRecord);
}
}
else {
// Userspace shares context with PTB. Let's disable possibly bound GLSL shaders:
PsychSetShader(windowRecord, 0);
}
// Check for GL errors:
PsychTestForGLErrors();
// Set the userspace flag:
PsychSetUserspaceGLFlag(TRUE);
// Ready for userspace rendering:
return(PsychError_none);
}
void GL_WriteTexturesToDisk()
{
#pragma warning(push)
#pragma warning(disable : 4996) // sprintf unsafe
static std::vector<unsigned char> bytes;
int activeTexture;
glGetIntegerv(GL_ACTIVE_TEXTURE, &activeTexture);
int originalBoundTex = 0;
glGetIntegerv(GL_TEXTURE_BINDING_2D, &originalBoundTex);
int maxColorAttachments;
glGetIntegerv(GL_MAX_COLOR_ATTACHMENTS, &maxColorAttachments);
int depthAttachment = -1;
glGetFramebufferAttachmentParameterivEXT(GL_DRAW_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME, &depthAttachment);
std::map<GLuint, int> colorAttachments;
for( int i=0; i<maxColorAttachments; i++ )
{
int name;
glGetFramebufferAttachmentParameterivEXT(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0+i, GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME, &name);
if( name != 0 ) colorAttachments[name] = i;
}
int maxTextureUnits;
glGetIntegerv(GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS, &maxTextureUnits);
std::map<GLuint, int> boundTextures;
for( int i=0; i<maxTextureUnits; i++ ) {
int boundTexture;
glActiveTexture(GL_TEXTURE0+i);
glGetIntegerv(GL_TEXTURE_BINDING_2D, &boundTexture);
if( boundTexture ) {
boundTextures[boundTexture] = i;
}
}
glActiveTexture(activeTexture);
for( int i=1; i<200; i++ ) { // save textures to disk
if( glIsTexture(i) ) {
glBindTexture(GL_TEXTURE_2D, i);
int width, height, format, components;
glGetTexLevelParameteriv(GL_TEXTURE_2D, 0, GL_TEXTURE_WIDTH, &width);
glGetTexLevelParameteriv(GL_TEXTURE_2D, 0, GL_TEXTURE_HEIGHT, &height);
glGetTexLevelParameteriv(GL_TEXTURE_2D, 0, GL_TEXTURE_INTERNAL_FORMAT, &format); // Danger, GL_TEXTURE_INTERNAL_FORMAT equals GL_TEXTURE_COMPONENTS
glGetTexLevelParameteriv(GL_TEXTURE_2D, 0, GL_TEXTURE_COMPONENTS, &components);
if( format == 1 ) format = GL_R;
else if( format == 2 ) format = GL_RG;
else if( format == 3 || format == GL_RGB8 ) format = GL_RGB;
else if( format == 4 || format == GL_RGBA8 ) format = GL_RGBA;
else if( format==GL_DEPTH_COMPONENT24 || format==GL_DEPTH_COMPONENT32 ) format = GL_DEPTH_COMPONENT;
bool floatFormat = false;
if( format == GL_RGBA32F_ARB )
{
floatFormat = true;
}
if( components > 4 )
{
switch( format ) {
case GL_RGBA:
case GL_RGBA8:
#if GS_WIN
case GL_RGBA16F:
case GL_RGBA32F:
#else
case GL_RGBA16F_ARB:
case GL_RGBA32F_ARB:
#endif
components = 4;
break;
case GL_RGB:
#if GS_WIN
case GL_RGB16F:
case GL_RGB32F:
#else
case GL_RGB16F_ARB:
case GL_RGB32F_ARB:
#endif
components = 3;
break;
case GL_RG:
case GL_RG16F:
case GL_RG32F:
components = 2;
break;
case GL_R:
case GL_DEPTH_COMPONENT16:
case GL_DEPTH_COMPONENT24:
case GL_DEPTH_COMPONENT32:
default:
components = 1;
break;
}
}
int size = width * height * components;
bytes.resize(size);
if( floatFormat )
{
std::vector<float> floatBytes(size);
glGetTexImage(GL_TEXTURE_2D, 0, format, GL_FLOAT, &floatBytes[0]);
for( size_t i=0; i<floatBytes.size(); i++ )
{
bytes[i] = (unsigned char)glm::min(1.0f, glm::max(0.0f, floatBytes[i]*255.0f));
}
}
else
{
glGetTexImage(GL_TEXTURE_2D, 0, format, GL_UNSIGNED_BYTE, &bytes[0]);
}
int err = glGetError();
if( err != 0 ) {
err = 0;
}
char filename[256];
int len=0;
#if GS_WIN
const char * logPath = "d:\\a\\";
#else
const char * logPath = "/a/";
#endif
len += sprintf(filename+len, "%stexture%d %dx%d %dBpp", logPath, i, width, height, components);
if( boundTextures.find(i) != boundTextures.end() ) len += sprintf(filename+len, " GL_TEXTURE%d", boundTextures[i]);
if( colorAttachments.find(i) != colorAttachments.end() ) len += sprintf(filename+len, " GL_COLOR_ATTACHMENT%d", colorAttachments[i]);
if( i == depthAttachment ) len += sprintf(filename+len, " GL_DEPTH_ATTACHMENT");
len += sprintf(filename+len, ".raw");
std::ofstream out(filename, std::ios_base::binary);
out.write((const char *)&bytes[0], size);
out.close();
}
}
glBindTexture(GL_TEXTURE_2D, originalBoundTex);
#pragma warning(pop)
}
JNIEXPORT void JNICALL Java_org_lwjgl_opengl_EXTFramebufferObject_nglGetFramebufferAttachmentParameterivEXT(JNIEnv *env, jclass clazz, jint target, jint attachment, jint pname, jlong params, jlong function_pointer) {
GLint *params_address = (GLint *)(intptr_t)params;
glGetFramebufferAttachmentParameterivEXTPROC glGetFramebufferAttachmentParameterivEXT = (glGetFramebufferAttachmentParameterivEXTPROC)((intptr_t)function_pointer);
glGetFramebufferAttachmentParameterivEXT(target, attachment, pname, params_address);
}
/**
* Makes a copy of a texture/RBO in the system ram
*/
void FBO::DownloadAttachment(const GLenum attachment)
{
GLuint target;
glGetFramebufferAttachmentParameterivEXT(GL_FRAMEBUFFER_EXT, attachment,
GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE_EXT,
(GLint*)&target);
GLuint id;
glGetFramebufferAttachmentParameterivEXT(GL_FRAMEBUFFER_EXT, attachment,
GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME_EXT,
(GLint*)&id);
if (target==GL_NONE || id==0)
return;
if (texBuf.find(id)!=texBuf.end())
return;
if (target==GL_TEXTURE) {
target = GetTextureTargetByID(id);
if (target<0)
return;
}
struct FBO::TexData* tex = new FBO::TexData;
tex->id = id;
tex->target = target;
int bits = 0;
if (target==GL_RENDERBUFFER_EXT) {
glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, id);
glGetRenderbufferParameterivEXT(GL_RENDERBUFFER_EXT, GL_RENDERBUFFER_WIDTH_EXT, &tex->xsize);
glGetRenderbufferParameterivEXT(GL_RENDERBUFFER_EXT, GL_RENDERBUFFER_HEIGHT_EXT, &tex->ysize);
glGetRenderbufferParameterivEXT(GL_RENDERBUFFER_EXT, GL_RENDERBUFFER_INTERNAL_FORMAT_EXT, (GLint*)&tex->format);
GLint _cbits;
glGetRenderbufferParameterivEXT(GL_RENDERBUFFER_EXT, GL_RENDERBUFFER_RED_SIZE_EXT, &_cbits); bits += _cbits;
glGetRenderbufferParameterivEXT(GL_RENDERBUFFER_EXT, GL_RENDERBUFFER_GREEN_SIZE_EXT, &_cbits); bits += _cbits;
glGetRenderbufferParameterivEXT(GL_RENDERBUFFER_EXT, GL_RENDERBUFFER_BLUE_SIZE_EXT, &_cbits); bits += _cbits;
glGetRenderbufferParameterivEXT(GL_RENDERBUFFER_EXT, GL_RENDERBUFFER_ALPHA_SIZE_EXT, &_cbits); bits += _cbits;
glGetRenderbufferParameterivEXT(GL_RENDERBUFFER_EXT, GL_RENDERBUFFER_DEPTH_SIZE_EXT, &_cbits); bits += _cbits;
glGetRenderbufferParameterivEXT(GL_RENDERBUFFER_EXT, GL_RENDERBUFFER_STENCIL_SIZE_EXT, &_cbits); bits += _cbits;
} else {
glBindTexture(target,id);
glGetTexLevelParameteriv(target, 0, GL_TEXTURE_WIDTH, &tex->xsize);
glGetTexLevelParameteriv(target, 0, GL_TEXTURE_HEIGHT, &tex->ysize);
glGetTexLevelParameteriv(target, 0, GL_TEXTURE_DEPTH, &tex->zsize);
glGetTexLevelParameteriv(target, 0, GL_TEXTURE_INTERNAL_FORMAT, (GLint*)&tex->format);
GLint _cbits;
glGetTexLevelParameteriv(target, 0, GL_TEXTURE_RED_SIZE, &_cbits); bits += _cbits;
glGetTexLevelParameteriv(target, 0, GL_TEXTURE_GREEN_SIZE, &_cbits); bits += _cbits;
glGetTexLevelParameteriv(target, 0, GL_TEXTURE_BLUE_SIZE, &_cbits); bits += _cbits;
glGetTexLevelParameteriv(target, 0, GL_TEXTURE_ALPHA_SIZE, &_cbits); bits += _cbits;
glGetTexLevelParameteriv(target, 0, GL_TEXTURE_DEPTH_SIZE, &_cbits); bits += _cbits;
}
if (configHandler->Get("AtiSwapRBFix",false)) {
if (tex->format == GL_RGBA) {
tex->format = GL_BGRA;
} else if (tex->format == GL_RGB) {
tex->format = GL_BGR;
}
}
if(bits < 32) /*FIXME*/
bits = 32;
switch (target) {
case GL_TEXTURE_3D:
tex->pixels = new unsigned char[tex->xsize*tex->ysize*tex->zsize*(bits/8)];
glGetTexImage(tex->target,0,/*FIXME*/GL_RGBA,/*FIXME*/GL_UNSIGNED_BYTE, tex->pixels);
break;
case GL_TEXTURE_1D:
tex->pixels = new unsigned char[tex->xsize*(bits/8)];
glGetTexImage(tex->target,0,/*FIXME*/GL_RGBA,/*FIXME*/GL_UNSIGNED_BYTE, tex->pixels);
break;
case GL_RENDERBUFFER_EXT:
tex->pixels = new unsigned char[tex->xsize*tex->ysize*(bits/8)];
glReadBuffer(attachment);
glReadPixels(0, 0, tex->xsize, tex->ysize, /*FIXME*/GL_RGBA, /*FIXME*/GL_UNSIGNED_BYTE, tex->pixels);
break;
default: //GL_TEXTURE_2D & GL_TEXTURE_RECTANGLE
tex->pixels = new unsigned char[tex->xsize*tex->ysize*(bits/8)];
glGetTexImage(tex->target,0,/*FIXME*/GL_RGBA,/*FIXME*/GL_UNSIGNED_BYTE, tex->pixels);
}
texBuf[id] = tex;
}
/**
* Makes a copy of a texture/RBO in the system ram
*/
void FBO::DownloadAttachment(const GLenum attachment)
{
GLuint target;
GLenum format = GL_RGBA;
glGetFramebufferAttachmentParameterivEXT(GL_FRAMEBUFFER_EXT, attachment,
GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE_EXT,
(GLint*)&target);
GLuint id;
glGetFramebufferAttachmentParameterivEXT(GL_FRAMEBUFFER_EXT, attachment,
GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME_EXT,
(GLint*)&id);
if (target==GL_NONE || id==0)
return;
if (texBuf.find(id)!=texBuf.end())
return;
if (target==GL_TEXTURE) {
target = GetTextureTargetByID(id);
if (target<0)
return;
}
struct FBO::TexData* tex = new FBO::TexData;
tex->id = id;
tex->target = target;
int bits = 0;
if (target==GL_RENDERBUFFER_EXT) {
glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, id);
glGetRenderbufferParameterivEXT(GL_RENDERBUFFER_EXT, GL_RENDERBUFFER_WIDTH_EXT, &tex->xsize);
glGetRenderbufferParameterivEXT(GL_RENDERBUFFER_EXT, GL_RENDERBUFFER_HEIGHT_EXT, &tex->ysize);
glGetRenderbufferParameterivEXT(GL_RENDERBUFFER_EXT, GL_RENDERBUFFER_INTERNAL_FORMAT_EXT, (GLint*)&tex->format);
GLint _cbits;
glGetRenderbufferParameterivEXT(GL_RENDERBUFFER_EXT, GL_RENDERBUFFER_RED_SIZE_EXT, &_cbits); bits += _cbits;
glGetRenderbufferParameterivEXT(GL_RENDERBUFFER_EXT, GL_RENDERBUFFER_GREEN_SIZE_EXT, &_cbits); bits += _cbits;
glGetRenderbufferParameterivEXT(GL_RENDERBUFFER_EXT, GL_RENDERBUFFER_BLUE_SIZE_EXT, &_cbits); bits += _cbits;
glGetRenderbufferParameterivEXT(GL_RENDERBUFFER_EXT, GL_RENDERBUFFER_ALPHA_SIZE_EXT, &_cbits); bits += _cbits;
glGetRenderbufferParameterivEXT(GL_RENDERBUFFER_EXT, GL_RENDERBUFFER_DEPTH_SIZE_EXT, &_cbits); bits += _cbits;
glGetRenderbufferParameterivEXT(GL_RENDERBUFFER_EXT, GL_RENDERBUFFER_STENCIL_SIZE_EXT, &_cbits); bits += _cbits;
} else {
glBindTexture(target,id);
glGetTexLevelParameteriv(target, 0, GL_TEXTURE_WIDTH, &tex->xsize);
glGetTexLevelParameteriv(target, 0, GL_TEXTURE_HEIGHT, &tex->ysize);
glGetTexLevelParameteriv(target, 0, GL_TEXTURE_DEPTH, &tex->zsize);
glGetTexLevelParameteriv(target, 0, GL_TEXTURE_INTERNAL_FORMAT, (GLint*)&tex->format);
GLint _cbits;
glGetTexLevelParameteriv(target, 0, GL_TEXTURE_RED_SIZE, &_cbits); bits += _cbits;
glGetTexLevelParameteriv(target, 0, GL_TEXTURE_GREEN_SIZE, &_cbits); bits += _cbits;
glGetTexLevelParameteriv(target, 0, GL_TEXTURE_BLUE_SIZE, &_cbits); bits += _cbits;
glGetTexLevelParameteriv(target, 0, GL_TEXTURE_ALPHA_SIZE, &_cbits); bits += _cbits;
glGetTexLevelParameteriv(target, 0, GL_TEXTURE_DEPTH_SIZE, &_cbits); bits += _cbits;
}
if (gu->atiHacks) { //FIXME use a seperate configvar? duno if linux's opensource drivers still have this bug
format = GL_BGRA; //ATI bug: it swizzles the channels in glReadPixels & glGetTexImage
}
switch (target) {
case GL_TEXTURE_3D:
tex->pixels = new unsigned char[tex->xsize*tex->ysize*tex->zsize*(bits/8)];
glGetTexImage(tex->target,0,format,/*FIXME*/GL_UNSIGNED_BYTE, tex->pixels);
break;
case GL_TEXTURE_1D:
tex->pixels = new unsigned char[tex->xsize*(bits/8)];
glGetTexImage(tex->target,0,format,/*FIXME*/GL_UNSIGNED_BYTE, tex->pixels);
break;
case GL_RENDERBUFFER_EXT:
tex->pixels = new unsigned char[tex->xsize*tex->ysize*(bits/8)];
glReadBuffer(attachment);
glReadPixels(0, 0, tex->xsize, tex->ysize, format, /*FIXME*/GL_UNSIGNED_BYTE, tex->pixels);
break;
default: //GL_TEXTURE_2D & GL_TEXTURE_RECTANGLE
tex->pixels = new unsigned char[tex->xsize*tex->ysize*(bits/8)];
glGetTexImage(tex->target,0,format,/*FIXME*/GL_UNSIGNED_BYTE, tex->pixels);
}
texBuf[id] = tex;
}