void djvOpenGlTest::members()
{
DJV_DEBUG("djvOpenGlTest::members");
djvImageContext context;
QScopedPointer<djvOpenGlContext> openGlContext(
context.openGlContextFactory()->create());
djvOpenGlContextScope contextScope(openGlContext.data());
QScopedPointer<djvOpenGlOffscreenBuffer> buffer(
new djvOpenGlOffscreenBuffer(djvPixelDataInfo(100, 100, djvPixel::RGBA_U8)));
djvOpenGlOffscreenBufferScope bufferScope(buffer.data());
DJV_DEBUG_PRINT("buffer = " << buffer->info());
DJV_DEBUG_PRINT("buffer id = " << buffer->id());
DJV_DEBUG_PRINT("buffer texture = " << buffer->texture());
{
djvOpenGlUtil::ortho(djvVector2i(100, 100));
DJV_ASSERT(GL_NO_ERROR == ::glGetError());
djvOpenGlUtil::color(djvColor(0.5));
DJV_ASSERT(GL_NO_ERROR == ::glGetError());
djvOpenGlUtil::drawBox(djvBox2i(25, 25, 50, 50));
DJV_ASSERT(GL_NO_ERROR == ::glGetError());
djvOpenGlUtil::drawBox(djvBox2f(50.0, 50.0, 50.0, 50.0));
DJV_ASSERT(GL_NO_ERROR == ::glGetError());
djvVector2f uv[4] =
{
djvVector2f(0.0, 0.0),
djvVector2f(0.1, 0.0),
djvVector2f(0.1, 1.0),
djvVector2f(0.0, 1.0)
};
djvOpenGlUtil::drawBox(djvBox2i(25, 25, 50, 50), uv);
DJV_ASSERT(GL_NO_ERROR == ::glGetError());
djvOpenGlUtil::drawBox(djvBox2f(50.0, 50.0, 50.0, 50.0), uv);
DJV_ASSERT(GL_NO_ERROR == ::glGetError());
}
{
for (int i = 0; i < djvPixel::PIXEL_COUNT; ++i)
{
DJV_ASSERT(djvOpenGlUtil::format(static_cast<djvPixel::PIXEL>(i)));
DJV_ASSERT(djvOpenGlUtil::type(static_cast<djvPixel::PIXEL>(i)));
}
}
}
void djvOpenGlImage::draw(
const djvPixelData & data,
const djvOpenGlImageOptions & options,
djvOpenGlImageState * state) throw (djvError)
{
//DJV_DEBUG("djvOpenGlImage::draw");
//DJV_DEBUG_PRINT("data = " << data);
//DJV_DEBUG_PRINT("color profile = " << options.colorProfile);
RestoreState restoreState;
djvOpenGlImageState defaultState;
if (! state)
{
state = &defaultState;
}
const djvPixelDataInfo & info = data.info();
const int proxyScale =
options.proxyScale ?
djvPixelDataUtil::proxyScale(info.proxy) :
1;
const djvVector2i scale = djvVectorUtil::ceil<double, int>(
options.xform.scale * djvVector2f(info.size * proxyScale));
const djvVector2i scaleTmp(scale.x, data.h());
//DJV_DEBUG_PRINT("scale = " << scale);
//DJV_DEBUG_PRINT("scale tmp = " << scaleTmp);
// Initialize.
const djvOpenGlImageFilter::FILTER filter =
info.size == scale ? djvOpenGlImageFilter::NEAREST :
(djvVectorUtil::area(scale) < djvVectorUtil::area(info.size) ?
options.filter.min : options.filter.mag);
//DJV_DEBUG_PRINT("filter min = " << options.filter.min);
//DJV_DEBUG_PRINT("filter mag = " << options.filter.mag);
//DJV_DEBUG_PRINT("filter = " << filter);
if (! state->_init || state->_info != info || state->_options != options)
{
switch (filter)
{
case djvOpenGlImageFilter::NEAREST:
case djvOpenGlImageFilter::LINEAR:
{
//DJV_DEBUG_PRINT("init single pass");
state->_texture->init(
data.info(),
djvOpenGlImageFilter::toGl(filter),
djvOpenGlImageFilter::toGl(filter));
state->_shader->init(
sourceVertex,
sourceFragment(
options.colorProfile.type,
options.displayProfile,
options.channel,
false,
0,
false));
}
break;
case djvOpenGlImageFilter::BOX:
case djvOpenGlImageFilter::TRIANGLE:
case djvOpenGlImageFilter::BELL:
case djvOpenGlImageFilter::BSPLINE:
case djvOpenGlImageFilter::LANCZOS3:
case djvOpenGlImageFilter::CUBIC:
case djvOpenGlImageFilter::MITCHELL:
{
//DJV_DEBUG_PRINT("init two pass");
state->_texture->init(
data.info(),
GL_NEAREST,
GL_NEAREST);
// Initialize horizontal pass.
djvPixelData contrib;
scaleContrib(
data.w(),
scale.x,
filter,
contrib);
state->_scaleXContrib->init(
contrib,
GL_NEAREST,
GL_NEAREST);
state->_scaleXShader->init(
sourceVertex,
sourceFragment(
options.colorProfile.type,
djvOpenGlImageDisplayProfile(),
static_cast<djvOpenGlImageOptions::CHANNEL>(0),
true,
contrib.h(),
true));
// Initialize vertical pass.
scaleContrib(
data.h(),
scale.y,
filter,
contrib);
state->_scaleYContrib->init(
contrib,
GL_NEAREST,
GL_NEAREST);
state->_scaleYShader->init(
sourceVertex,
sourceFragment(
static_cast<djvColorProfile::PROFILE>(0),
options.displayProfile,
options.channel,
true,
contrib.h(),
false));
}
break;
default: break;
}
state->_init = true;
state->_info = info;
state->_options = options;
}
// Render.
const djvPixelDataInfo::Mirror mirror(
info.mirror.x ? (! options.xform.mirror.x) : options.xform.mirror.x,
info.mirror.y ? (! options.xform.mirror.y) : options.xform.mirror.y);
//DJV_DEBUG_PRINT("mirror = " << mirror.x << " " << mirror.y);
switch (filter)
{
case djvOpenGlImageFilter::NEAREST:
case djvOpenGlImageFilter::LINEAR:
{
//DJV_DEBUG_PRINT("draw single pass");
state->_shader->bind();
// Initialize color and display profiles.
colorProfileInit(
options,
state->_shader->program(),
*state->_lutColorProfile);
displayProfileInit(
options,
state->_shader->program(),
*state->_lutDisplayProfile);
// Draw.
activeTexture(GL_TEXTURE0);
uniform1i(state->_shader->program(), "inTexture", 0);
state->_texture->copy(data);
state->_texture->bind();
DJV_DEBUG_OPEN_GL(glPushMatrix());
const djvMatrix3f m = djvOpenGlImageXform::xformMatrix(options.xform);
//DJV_DEBUG_PRINT("m = " << m);
DJV_DEBUG_OPEN_GL(glLoadMatrixd(djvMatrixUtil::matrix4(m).e));
quad(info.size, mirror, proxyScale);
DJV_DEBUG_OPEN_GL(glPopMatrix());
}
break;
case djvOpenGlImageFilter::BOX:
case djvOpenGlImageFilter::TRIANGLE:
case djvOpenGlImageFilter::BELL:
case djvOpenGlImageFilter::BSPLINE:
case djvOpenGlImageFilter::LANCZOS3:
case djvOpenGlImageFilter::CUBIC:
case djvOpenGlImageFilter::MITCHELL:
{
//DJV_DEBUG_PRINT("draw two pass");
// Horizontal pass.
djvOpenGlOffscreenBuffer buffer(
djvPixelDataInfo(scaleTmp, data.pixel()));
{
djvOpenGlOffscreenBufferScope bufferScope(&buffer);
state->_scaleXShader->bind();
colorProfileInit(
options,
state->_scaleXShader->program(),
*state->_lutColorProfile);
activeTexture(GL_TEXTURE0);
uniform1i(state->_scaleXShader->program(), "inTexture", 0);
state->_texture->copy(data);
state->_texture->bind();
activeTexture(GL_TEXTURE1);
uniform1i(
state->_scaleXShader->program(), "inScaleContrib", 1);
state->_scaleXContrib->bind();
glPushAttrib(GL_TRANSFORM_BIT | GL_VIEWPORT_BIT);
glMatrixMode(GL_PROJECTION);
glPushMatrix();
glMatrixMode(GL_MODELVIEW);
glPushMatrix();
djvOpenGlUtil::ortho(scaleTmp);
glViewport(0, 0, scaleTmp.x, scaleTmp.y);
quad(scaleTmp, mirror);
glMatrixMode(GL_PROJECTION);
glPopMatrix();
glMatrixMode(GL_MODELVIEW);
glPopMatrix();
glPopAttrib();
}
// Vertical pass.
state->_scaleYShader->bind();
displayProfileInit(
options,
state->_scaleYShader->program(),
*state->_lutDisplayProfile);
activeTexture(GL_TEXTURE0);
uniform1i(state->_scaleYShader->program(), "inTexture", 0);
DJV_DEBUG_OPEN_GL(glBindTexture(GL_TEXTURE_2D, buffer.texture()));
activeTexture(GL_TEXTURE1);
uniform1i(state->_scaleYShader->program(), "inScaleContrib", 1);
state->_scaleYContrib->bind();
djvOpenGlImageXform xform = options.xform;
xform.scale = djvVector2f(1.0);
const djvMatrix3f m = djvOpenGlImageXform::xformMatrix(xform);
DJV_DEBUG_OPEN_GL(glPushMatrix());
DJV_DEBUG_OPEN_GL(glLoadMatrixd(djvMatrixUtil::matrix4(m).e));
quad(scale);
DJV_DEBUG_OPEN_GL(glPopMatrix());
}
break;
default: break;
}
}
