PixelBuffer GL3GraphicContextProvider::get_pixeldata(const Rect& rect, TextureFormat texture_format, bool clamp) const
{
TextureFormat_GL tf = OpenGL::get_textureformat(texture_format);
if (!tf.valid)
throw Exception("Unsupported texture format passed to GraphicContext::get_pixeldata");
PixelBuffer pbuf(rect.get_width(), rect.get_height(), texture_format);
OpenGL::set_active(this);
if (!framebuffer_bound)
{
render_window->is_double_buffered() ? glReadBuffer(GL_BACK) : glReadBuffer(GL_FRONT);
}
if (glClampColor)
glClampColor(GL_CLAMP_READ_COLOR, clamp ? GL_TRUE : GL_FALSE);
Size display_size = get_display_window_size();
glPixelStorei(GL_PACK_ALIGNMENT, 1);
glPixelStorei(GL_PACK_ROW_LENGTH, pbuf.get_pitch() / pbuf.get_bytes_per_pixel());
glPixelStorei(GL_PACK_SKIP_PIXELS, 0);
glPixelStorei(GL_PACK_SKIP_ROWS, 0);
glReadPixels(rect.left, display_size.height - rect.bottom, rect.get_width(), rect.get_height(), tf.pixel_format, tf.pixel_datatype, pbuf.get_data());
pbuf.flip_vertical();
return pbuf;
}
PixelBuffer GL1GraphicContextProvider::get_pixeldata(const Rect& rect, TextureFormat texture_format, bool clamp) const
{
GLenum format;
GLenum type;
bool found = GL1TextureProvider::to_opengl_pixelformat(texture_format, format, type);
if (!found)
throw Exception("Unsupported pixel format passed to GraphicContext::get_pixeldata");
PixelBuffer pbuf(rect.get_width(), rect.get_height(), texture_format);
set_active();
if (!framebuffer_bound)
render_window->is_double_buffered() ? glReadBuffer(GL_BACK) : glReadBuffer(GL_FRONT);
Size display_size = get_display_window_size();
glPixelStorei(GL_PACK_ALIGNMENT, 1);
#ifndef __ANDROID__
glPixelStorei(GL_PACK_ROW_LENGTH, pbuf.get_pitch() / pbuf.get_bytes_per_pixel());
glPixelStorei(GL_PACK_SKIP_PIXELS, 0);
glPixelStorei(GL_PACK_SKIP_ROWS, 0);
#endif
glReadPixels(rect.left, display_size.height - rect.bottom, rect.get_width(), rect.get_height(), format, type, pbuf.get_data());
pbuf.flip_vertical();
return pbuf;
}
void D3DGraphicContextProvider::end_resize_swap_chain()
{
Size viewport_size = get_display_window_size();
viewports[0].Width = viewport_size.width;
viewports[0].Height = viewport_size.height;
viewports[0].TopLeftX = 0;
viewports[0].TopLeftY = 0;
window->get_device_context()->RSSetViewports(D3D11_SIMULTANEOUS_RENDER_TARGET_COUNT, viewports);
set_default_dsv();
}
void D3DGraphicContextProvider::set_default_dsv()
{
if (default_depth != 0 && !default_depth_render_buffer)
{
TextureFormat texture_format = tf_depth_component32;
if (default_depth <= 16)
texture_format = tf_depth_component32;
else if (default_depth <= 24)
texture_format = tf_depth_component24;
Size viewport_size = get_display_window_size();
default_depth_render_buffer = std::shared_ptr<D3DRenderBufferProvider>( new D3DRenderBufferProvider(window->get_device()));
default_depth_render_buffer->create(viewport_size.width, viewport_size.height, texture_format, 1);
default_dsv = default_depth_render_buffer->create_dsv(window->get_device());
}
ID3D11RenderTargetView *targets[] = { window->get_back_buffer_rtv() };
ID3D11DepthStencilView *default_depth_stencil_rtv = (default_depth != 0) ? default_dsv.get() : nullptr;
window->get_device_context()->OMSetRenderTargets(1, targets, default_depth_stencil_rtv);
}
D3DGraphicContextProvider::D3DGraphicContextProvider(D3DDisplayWindowProvider *window, const DisplayWindowDescription &display_desc)
: window(window),
current_prim_array_provider(0),
current_program_provider(0),
input_layout_set(false)
{
// set_blend_color(Colorf::black);
// set_blend_function(blend_one, blend_zero, blend_one, blend_zero);
// enable_blending(false);
default_depth = display_desc.get_depth_size();
Size viewport_size = get_display_window_size();
for (int i = 0; i < D3D11_SIMULTANEOUS_RENDER_TARGET_COUNT; i++)
{
viewports[i].Width = viewport_size.width;
viewports[i].Height = viewport_size.height;
viewports[i].TopLeftX = 0;
viewports[i].TopLeftY = 0;
viewports[i].MinDepth = 0.0f;
viewports[i].MaxDepth = 1.0f;
}
window->get_device_context()->RSSetViewports(D3D11_SIMULTANEOUS_RENDER_TARGET_COUNT, viewports);
for (int i = 0; i < D3D11_SIMULTANEOUS_RENDER_TARGET_COUNT; i++)
{
scissor_rects[i].left = 0;
scissor_rects[i].top = 0;
scissor_rects[i].right = 0;
scissor_rects[i].bottom = 0;
}
for (int i = 0; i < shadertype_num_types; i++)
shader_bound[i] = false;
set_default_dsv();
SharedGCData::add_provider(this);
}
