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LibGL: Implement glArrayElement

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This commit is contained in:
Jesse Buhagiar 2022-03-10 00:11:35 +11:00 • committed by Andreas Kling
parent 85985e2cf4
commit 6e9ea2f21f
4 changed files with 44 additions and 1 deletions
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35
Userland/Libraries/LibGL/GLContext.cpp
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@ -2308,6 +2308,41 @@ void GLContext::gl_draw_pixels(GLsizei width, GLsizei height, GLenum format, GLe
}
}
void GLContext::gl_array_element(GLint i)
{
APPEND_TO_CALL_LIST_AND_RETURN_IF_NEEDED(gl_array_element, i);
RETURN_WITH_ERROR_IF(i < 0, GL_INVALID_VALUE);
// This is effectively the same as `gl_draw_elements`, except we only output a single
// vertex (this is done between a `gl_begin/end` call) that is to be rendered.
if (!m_client_side_vertex_array_enabled)
return;
if (m_client_side_color_array_enabled) {
float color[4] { 0, 0, 0, 1 };
read_from_vertex_attribute_pointer(m_client_color_pointer, i, color);
gl_color(color[0], color[1], color[2], color[3]);
}
for (size_t t = 0; t < m_client_tex_coord_pointer.size(); ++t) {
if (m_client_side_texture_coord_array_enabled[t]) {
float tex_coords[4] { 0, 0, 0, 0 };
read_from_vertex_attribute_pointer(m_client_tex_coord_pointer[t], i, tex_coords);
gl_multi_tex_coord(GL_TEXTURE0 + t, tex_coords[0], tex_coords[1], tex_coords[2], tex_coords[3]);
}
}
if (m_client_side_normal_array_enabled) {
float normal[3];
read_from_vertex_attribute_pointer(m_client_normal_pointer, i, normal);
gl_normal(normal[0], normal[1], normal[2]);
}
float vertex[4] { 0, 0, 0, 1 };
read_from_vertex_attribute_pointer(m_client_vertex_pointer, i, vertex);
gl_vertex(vertex[0], vertex[1], vertex[2], vertex[3]);
}
void GLContext::gl_depth_range(GLdouble min, GLdouble max)
{
APPEND_TO_CALL_LIST_AND_RETURN_IF_NEEDED(gl_depth_range, min, max);