RGBCube/serenity
1
Fork 0
mirror of https://github.com/RGBCube/serenity synced 2025-07-25 09:27:35 +00:00
Code Issues Activity Actions

LibGL: Implement glDrawBuffer

Browse source
This commit is contained in:
Stephan Unverwerth 2021-08-31 20:23:29 +02:00 • committed by Ali Mohammad Pur
parent b069c1306c
commit 7cbaaf8366
7 changed files with 52 additions and 1 deletions
Download patch file Download diff file Expand all files Collapse all files

40
Userland/Libraries/LibGL/SoftwareGLContext.cpp
View file

@ -960,6 +960,46 @@ void SoftwareGLContext::gl_read_buffer(GLenum mode)
m_current_read_buffer = mode;
}
void SoftwareGLContext::gl_draw_buffer(GLenum buffer)
{
APPEND_TO_CALL_LIST_AND_RETURN_IF_NEEDED(gl_draw_buffer, buffer);
RETURN_WITH_ERROR_IF(m_in_draw_state, GL_INVALID_OPERATION);
// FIXME: Also allow aux buffers GL_AUX0 through GL_AUX3 here
// plus any aux buffer between 0 and GL_AUX_BUFFERS
RETURN_WITH_ERROR_IF(buffer != GL_NONE
&& buffer != GL_FRONT_LEFT
&& buffer != GL_FRONT_RIGHT
&& buffer != GL_BACK_LEFT
&& buffer != GL_BACK_RIGHT
&& buffer != GL_FRONT
&& buffer != GL_BACK
&& buffer != GL_LEFT
&& buffer != GL_RIGHT,
GL_INVALID_ENUM);
// FIXME: We do not currently have aux buffers, so make it an invalid
// operation to select anything but front or back buffers. Also we do
// not allow selecting the stereoscopic RIGHT buffers since we do not
// have them configured.
RETURN_WITH_ERROR_IF(buffer != GL_NONE
&& buffer != GL_FRONT_LEFT
&& buffer != GL_FRONT
&& buffer != GL_BACK_LEFT
&& buffer != GL_BACK
&& buffer != GL_FRONT
&& buffer != GL_BACK
&& buffer != GL_LEFT,
GL_INVALID_OPERATION);
m_current_draw_buffer = buffer;
auto rasterizer_options = m_rasterizer.options();
rasterizer_options.draw_buffer = m_current_draw_buffer;
m_rasterizer.set_options(rasterizer_options);
}
void SoftwareGLContext::gl_read_pixels(GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type, GLvoid* pixels)
{
RETURN_WITH_ERROR_IF(m_in_draw_state, GL_INVALID_OPERATION);