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gl: Expand index for quads/quad_strip/triangle_fan

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This commit is contained in:
Vincent Lejeune 2016-03-01 21:42:46 +01:00
parent f72f6fe9c5
commit 23a0116975
2 changed files with 48 additions and 6 deletions
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48
rpcs3/Emu/RSX/GL/GLGSRender.cpp
View File

@ -381,6 +381,34 @@ namespace
}
}
namespace
{
// return vertex count and filled index array if primitive type is not native (empty array otherwise)
std::tuple<u32, std::vector<u8>> get_index_array_for_emulated_non_indexed_draw(const std::vector<std::pair<u32, u32>> &first_count_commands, rsx::primitive_type primitive_mode)
{
u32 vertex_draw_count = 0;
assert(!is_primitive_native(primitive_mode));
for (const auto &pair : first_count_commands)
{
vertex_draw_count += (u32)get_index_count(primitive_mode, pair.second);
}
std::vector<u8> vertex_index_array(vertex_draw_count * sizeof(u16));
u32 first = 0;
char* mapped_buffer = (char*)vertex_index_array.data();
for (const auto &pair : first_count_commands)
{
size_t element_count = get_index_count(primitive_mode, pair.second);
write_index_array_for_non_indexed_non_native_primitive_to_buffer(mapped_buffer, primitive_mode, first, pair.second);
mapped_buffer = (char*)mapped_buffer + element_count * sizeof(u16);
first += pair.second;
}
return std::make_tuple(vertex_draw_count, vertex_index_array);
}
}
void GLGSRender::end()
{
if (!draw_fbo)
@ -449,16 +477,17 @@ void GLGSRender::end()
{
vertex_draw_count += first_count.second;
}
// Index count
vertex_draw_count = (u32)get_index_count(draw_mode, gsl::narrow<int>(vertex_draw_count));
vertex_index_array.resize(vertex_draw_count * type_size);
switch (type)
{
case rsx::index_array_type::u32:
std::tie(min_index, max_index) = write_index_array_data_to_buffer_untouched(gsl::span<u32>((u32*)vertex_index_array.data(), vertex_draw_count), first_count_commands);
std::tie(min_index, max_index) = write_index_array_data_to_buffer(gsl::span<u32>((u32*)vertex_index_array.data(), vertex_draw_count), draw_mode, first_count_commands);
break;
case rsx::index_array_type::u16:
std::tie(min_index, max_index) = write_index_array_data_to_buffer_untouched(gsl::span<u16>((u16*)vertex_index_array.data(), vertex_draw_count), first_count_commands);
std::tie(min_index, max_index) = write_index_array_data_to_buffer(gsl::span<u16>((u16*)vertex_index_array.data(), vertex_draw_count), draw_mode, first_count_commands);
break;
}
}
@ -534,6 +563,10 @@ void GLGSRender::end()
//Link texture to uniform
m_program->uniforms.texture(location, index + rsx::limits::textures_count, *texture);
if (!is_primitive_native(draw_mode))
{
std::tie(vertex_draw_count, vertex_index_array) = get_index_array_for_emulated_non_indexed_draw({ {0, vertex_draw_count} }, draw_mode);
}
}
}
@ -659,6 +692,10 @@ void GLGSRender::end()
continue;
}
}
if (draw_command == rsx::draw_command::array && !is_primitive_native(draw_mode))
{
std::tie(vertex_draw_count, vertex_index_array) = get_index_array_for_emulated_non_indexed_draw(first_count_commands, draw_mode);
}
}
// glDraw* will fail without at least attrib0 defined if we are on compatibility profile
@ -684,6 +721,11 @@ void GLGSRender::end()
if (indexed_type == rsx::index_array_type::u16)
__glcheck glDrawElements(gl::draw_mode(draw_mode), vertex_draw_count, GL_UNSIGNED_SHORT, nullptr);
}
else if (!is_primitive_native(draw_mode))
{
m_ebo.data(vertex_index_array.size(), vertex_index_array.data());
__glcheck glDrawElements(gl::draw_mode(draw_mode), vertex_draw_count, GL_UNSIGNED_SHORT, nullptr);
}
else
{
draw_fbo.draw_arrays(draw_mode, vertex_draw_count);

6
rpcs3/Emu/RSX/GL/gl_helpers.cpp
View File

@ -16,9 +16,9 @@ namespace gl
case rsx::primitive_type::triangles: return GL_TRIANGLES;
case rsx::primitive_type::triangle_strip: return GL_TRIANGLE_STRIP;
case rsx::primitive_type::triangle_fan: return GL_TRIANGLE_FAN;
case rsx::primitive_type::quads: return GL_QUADS;
case rsx::primitive_type::quad_strip: return GL_QUAD_STRIP;
case rsx::primitive_type::polygon: return GL_POLYGON;
case rsx::primitive_type::quads: return GL_TRIANGLES;
case rsx::primitive_type::quad_strip: return GL_TRIANGLES;
case rsx::primitive_type::polygon: return GL_TRIANGLES;
}
throw new EXCEPTION("unknow primitive type");
}