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Merge pull request #1528 from kd-11/gl_attrib_padding

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gl: Allow attrib padding for types that require expansion
This commit is contained in:
vlj 2016-03-02 14:03:59 +01:00
commit 674373dd6c
1 changed files with 26 additions and 0 deletions
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26
rpcs3/Emu/RSX/GL/GLGSRender.cpp
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@ -49,6 +49,27 @@ namespace
return vec_selectors[size][(int)type];
}
void prepare_buffer_for_writing(void *data, rsx::vertex_base_type type, u8 vertex_size, u32 vertex_count)
{
switch (type)
{
case rsx::vertex_base_type::sf:
{
if (vertex_size == 3)
{
/**
* Pad the 4th component for half-float arrays to 1, since texelfetch does not mask components
*/
u16 *dst = reinterpret_cast<u16*>(data);
for (u32 i = 0, idx = 3; i < vertex_count; ++i, idx += 4)
dst[idx] = 0x3c00;
}
break;
}
}
}
}
GLGSRender::GLGSRender() : GSRender(frame_type::OpenGL)
@ -496,6 +517,7 @@ void GLGSRender::end()
u8 *dst = vertex_arrays_data.data();
src += offsets[index];
prepare_buffer_for_writing(dst, vertex_info.type, vertex_info.size, vertex_draw_count);
//TODO: properly handle compressed data
for (u32 i = 0; i < vertex_draw_count; ++i)
@ -570,6 +592,8 @@ void GLGSRender::end()
{
size_t offset = 0;
gsl::span<gsl::byte> dest_span(vertex_array);
prepare_buffer_for_writing(vertex_array.data(), vertex_info.type, vertex_info.size, vertex_draw_count);
for (const auto &first_count : first_count_commands)
{
write_vertex_array_data_to_buffer(dest_span.subspan(offset), src_ptr, first_count.first, first_count.second, vertex_info.type, vertex_info.size, vertex_info.stride);
@ -580,6 +604,8 @@ void GLGSRender::end()
{
vertex_array.resize((max_index + 1) * element_size);
gsl::span<gsl::byte> dest_span(vertex_array);
prepare_buffer_for_writing(vertex_array.data(), vertex_info.type, vertex_info.size, vertex_draw_count);
write_vertex_array_data_to_buffer(dest_span, src_ptr, 0, max_index + 1, vertex_info.type, vertex_info.size, vertex_info.stride);
}