rpcs3/rpcs3/Emu/RSX/GL/GLRenderTargets.cpp

704 lines
23 KiB
C++

#include "stdafx.h"
#include "GLGSRender.h"
#include "GLResolveHelper.h"
#include "Emu/RSX/rsx_methods.h"
#include <span>
color_format rsx::internals::surface_color_format_to_gl(rsx::surface_color_format color_format)
{
//color format
switch (color_format)
{
case rsx::surface_color_format::r5g6b5:
return{ ::gl::texture::type::ushort_5_6_5, ::gl::texture::format::rgb, ::gl::texture::internal_format::rgb565, true };
case rsx::surface_color_format::a8r8g8b8:
return{ ::gl::texture::type::uint_8_8_8_8_rev, ::gl::texture::format::bgra, ::gl::texture::internal_format::bgra8, true };
//These formats discard their alpha component, forced to 0 or 1
//All XBGR formats will have remapping before they can be read back in shaders as DRGB8
//Prefix o = 1, z = 0
case rsx::surface_color_format::x1r5g5b5_o1r5g5b5:
return{ ::gl::texture::type::ushort_5_5_5_1, ::gl::texture::format::rgb, ::gl::texture::internal_format::bgr5a1, true,
{ ::gl::texture::channel::one, ::gl::texture::channel::r, ::gl::texture::channel::g, ::gl::texture::channel::b } };
case rsx::surface_color_format::x1r5g5b5_z1r5g5b5:
return{ ::gl::texture::type::ushort_5_5_5_1, ::gl::texture::format::rgb, ::gl::texture::internal_format::bgr5a1, true,
{ ::gl::texture::channel::zero, ::gl::texture::channel::r, ::gl::texture::channel::g, ::gl::texture::channel::b } };
case rsx::surface_color_format::x8r8g8b8_z8r8g8b8:
return{ ::gl::texture::type::uint_8_8_8_8_rev, ::gl::texture::format::bgra, ::gl::texture::internal_format::bgra8, true,
{ ::gl::texture::channel::zero, ::gl::texture::channel::r, ::gl::texture::channel::g, ::gl::texture::channel::b } };
case rsx::surface_color_format::x8b8g8r8_o8b8g8r8:
return{ ::gl::texture::type::uint_8_8_8_8_rev, ::gl::texture::format::rgba, ::gl::texture::internal_format::rgba8, true,
{ ::gl::texture::channel::one, ::gl::texture::channel::r, ::gl::texture::channel::g, ::gl::texture::channel::b } };
case rsx::surface_color_format::x8b8g8r8_z8b8g8r8:
return{ ::gl::texture::type::uint_8_8_8_8_rev, ::gl::texture::format::rgba, ::gl::texture::internal_format::rgba8, true,
{ ::gl::texture::channel::zero, ::gl::texture::channel::r, ::gl::texture::channel::g, ::gl::texture::channel::b } };
case rsx::surface_color_format::x8r8g8b8_o8r8g8b8:
return{ ::gl::texture::type::uint_8_8_8_8_rev, ::gl::texture::format::bgra, ::gl::texture::internal_format::bgra8, true,
{ ::gl::texture::channel::one, ::gl::texture::channel::r, ::gl::texture::channel::g, ::gl::texture::channel::b } };
case rsx::surface_color_format::w16z16y16x16:
return{ ::gl::texture::type::f16, ::gl::texture::format::rgba, ::gl::texture::internal_format::rgba16f, true};
case rsx::surface_color_format::w32z32y32x32:
return{ ::gl::texture::type::f32, ::gl::texture::format::rgba, ::gl::texture::internal_format::rgba32f, true};
case rsx::surface_color_format::b8:
return{ ::gl::texture::type::ubyte, ::gl::texture::format::r, ::gl::texture::internal_format::r8, false,
{ ::gl::texture::channel::one, ::gl::texture::channel::r, ::gl::texture::channel::r, ::gl::texture::channel::r } };
case rsx::surface_color_format::g8b8:
return{ ::gl::texture::type::ubyte, ::gl::texture::format::rg, ::gl::texture::internal_format::rg8, false,
{ ::gl::texture::channel::g, ::gl::texture::channel::r, ::gl::texture::channel::g, ::gl::texture::channel::r } };
case rsx::surface_color_format::x32:
return{ ::gl::texture::type::f32, ::gl::texture::format::r, ::gl::texture::internal_format::r32f, true,
{ ::gl::texture::channel::r, ::gl::texture::channel::r, ::gl::texture::channel::r, ::gl::texture::channel::r } };
case rsx::surface_color_format::a8b8g8r8:
return{ ::gl::texture::type::uint_8_8_8_8_rev, ::gl::texture::format::rgba, ::gl::texture::internal_format::rgba8, true };
default:
fmt::throw_exception("Unsupported surface color format 0x%x", static_cast<u32>(color_format));
}
}
depth_format rsx::internals::surface_depth_format_to_gl(rsx::surface_depth_format2 depth_format)
{
switch (depth_format)
{
case rsx::surface_depth_format2::z16_uint:
return{ ::gl::texture::type::ushort, ::gl::texture::format::depth, ::gl::texture::internal_format::depth16 };
case rsx::surface_depth_format2::z16_float:
return{ ::gl::texture::type::f32, ::gl::texture::format::depth, ::gl::texture::internal_format::depth32f };
case rsx::surface_depth_format2::z24s8_uint:
if (g_cfg.video.force_high_precision_z_buffer && ::gl::get_driver_caps().ARB_depth_buffer_float_supported)
return{ ::gl::texture::type::uint_24_8, ::gl::texture::format::depth_stencil, ::gl::texture::internal_format::depth32f_stencil8 };
else
return{ ::gl::texture::type::uint_24_8, ::gl::texture::format::depth_stencil, ::gl::texture::internal_format::depth24_stencil8 };
case rsx::surface_depth_format2::z24s8_float:
return{ ::gl::texture::type::float32_uint8, ::gl::texture::format::depth_stencil, ::gl::texture::internal_format::depth32f_stencil8 };
default:
fmt::throw_exception("Unsupported depth format 0x%x", static_cast<u32>(depth_format));
}
}
u8 rsx::internals::get_pixel_size(rsx::surface_depth_format format)
{
switch (format)
{
case rsx::surface_depth_format::z16: return 2;
case rsx::surface_depth_format::z24s8: return 4;
default: fmt::throw_exception("Unknown depth format");
}
}
void GLGSRender::init_buffers(rsx::framebuffer_creation_context context, bool /*skip_reading*/)
{
const bool clipped_scissor = (context == rsx::framebuffer_creation_context::context_draw);
if (m_current_framebuffer_context == context && !m_graphics_state.test(rsx::rtt_config_dirty) && m_draw_fbo)
{
// Fast path
// Framebuffer usage has not changed, framebuffer exists and config regs have not changed
set_scissor(clipped_scissor);
return;
}
m_graphics_state.clear(
rsx::rtt_config_dirty |
rsx::rtt_config_contested |
rsx::rtt_config_valid |
rsx::rtt_cache_state_dirty);
get_framebuffer_layout(context, m_framebuffer_layout);
if (!m_graphics_state.test(rsx::rtt_config_valid))
{
return;
}
if (m_draw_fbo && m_framebuffer_layout.ignore_change)
{
// Nothing has changed, we're still using the same framebuffer
// Update flags to match current
m_draw_fbo->bind();
set_viewport();
set_scissor(clipped_scissor);
return;
}
gl::command_context cmd{ gl_state };
m_rtts.prepare_render_target(cmd,
m_framebuffer_layout.color_format, m_framebuffer_layout.depth_format,
m_framebuffer_layout.width, m_framebuffer_layout.height,
m_framebuffer_layout.target, m_framebuffer_layout.aa_mode, m_framebuffer_layout.raster_type,
m_framebuffer_layout.color_addresses, m_framebuffer_layout.zeta_address,
m_framebuffer_layout.actual_color_pitch, m_framebuffer_layout.actual_zeta_pitch);
std::array<GLuint, 4> color_targets;
GLuint depth_stencil_target;
const u8 color_bpp = get_format_block_size_in_bytes(m_framebuffer_layout.color_format);
const auto samples = get_format_sample_count(m_framebuffer_layout.aa_mode);
for (int i = 0; i < rsx::limits::color_buffers_count; ++i)
{
if (m_surface_info[i].pitch && g_cfg.video.write_color_buffers)
{
const utils::address_range32 surface_range = m_surface_info[i].get_memory_range();
m_gl_texture_cache.set_memory_read_flags(surface_range, rsx::memory_read_flags::flush_once);
m_gl_texture_cache.flush_if_cache_miss_likely(cmd, surface_range);
}
if (std::get<0>(m_rtts.m_bound_render_targets[i]))
{
auto rtt = std::get<1>(m_rtts.m_bound_render_targets[i]);
color_targets[i] = rtt->id();
ensure(rtt->get_rsx_pitch() == m_framebuffer_layout.actual_color_pitch[i]); // "Pitch mismatch!"
m_surface_info[i].address = m_framebuffer_layout.color_addresses[i];
m_surface_info[i].pitch = m_framebuffer_layout.actual_color_pitch[i];
m_surface_info[i].width = m_framebuffer_layout.width;
m_surface_info[i].height = m_framebuffer_layout.height;
m_surface_info[i].color_format = m_framebuffer_layout.color_format;
m_surface_info[i].bpp = color_bpp;
m_surface_info[i].samples = samples;
m_gl_texture_cache.notify_surface_changed(m_surface_info[i].get_memory_range(m_framebuffer_layout.aa_factors));
}
else
{
color_targets[i] = GL_NONE;
m_surface_info[i] = {};
}
}
if (m_depth_surface_info.pitch && g_cfg.video.write_depth_buffer)
{
const utils::address_range32 surface_range = m_depth_surface_info.get_memory_range();
m_gl_texture_cache.set_memory_read_flags(surface_range, rsx::memory_read_flags::flush_once);
m_gl_texture_cache.flush_if_cache_miss_likely(cmd, surface_range);
}
if (std::get<0>(m_rtts.m_bound_depth_stencil))
{
auto ds = std::get<1>(m_rtts.m_bound_depth_stencil);
depth_stencil_target = ds->id();
ensure(std::get<1>(m_rtts.m_bound_depth_stencil)->get_rsx_pitch() == m_framebuffer_layout.actual_zeta_pitch); // "Pitch mismatch!"
m_depth_surface_info.address = m_framebuffer_layout.zeta_address;
m_depth_surface_info.pitch = m_framebuffer_layout.actual_zeta_pitch;
m_depth_surface_info.width = m_framebuffer_layout.width;
m_depth_surface_info.height = m_framebuffer_layout.height;
m_depth_surface_info.depth_format = m_framebuffer_layout.depth_format;
m_depth_surface_info.bpp = get_format_block_size_in_bytes(m_framebuffer_layout.depth_format);
m_depth_surface_info.samples = samples;
m_gl_texture_cache.notify_surface_changed(m_depth_surface_info.get_memory_range(m_framebuffer_layout.aa_factors));
}
else
{
depth_stencil_target = GL_NONE;
m_depth_surface_info = {};
}
m_graphics_state.clear(rsx::rtt_config_valid);
if (m_draw_fbo)
{
// Release resource
static_cast<gl::framebuffer_holder*>(m_draw_fbo)->release();
}
for (auto &fbo : m_framebuffer_cache)
{
if (fbo.matches(color_targets, depth_stencil_target))
{
fbo.add_ref();
m_draw_fbo = &fbo;
m_draw_fbo->bind();
m_draw_fbo->set_extents({ m_framebuffer_layout.width, m_framebuffer_layout.height });
m_graphics_state.set(rsx::rtt_config_valid);
break;
}
}
if (!m_graphics_state.test(rsx::rtt_config_valid))
{
m_framebuffer_cache.emplace_back();
m_framebuffer_cache.back().add_ref();
m_draw_fbo = &m_framebuffer_cache.back();
m_draw_fbo->create();
m_draw_fbo->bind();
m_draw_fbo->set_extents({ m_framebuffer_layout.width, m_framebuffer_layout.height });
for (int i = 0; i < 4; ++i)
{
if (color_targets[i])
{
m_draw_fbo->color[i] = color_targets[i];
}
}
if (depth_stencil_target)
{
if (is_depth_stencil_format(m_framebuffer_layout.depth_format))
{
m_draw_fbo->depth_stencil = depth_stencil_target;
}
else
{
m_draw_fbo->depth = depth_stencil_target;
}
}
}
switch (rsx::method_registers.surface_color_target())
{
case rsx::surface_target::none: break;
case rsx::surface_target::surface_a:
m_draw_fbo->draw_buffer(m_draw_fbo->color[0]);
m_draw_fbo->read_buffer(m_draw_fbo->color[0]);
break;
case rsx::surface_target::surface_b:
m_draw_fbo->draw_buffer(m_draw_fbo->color[1]);
m_draw_fbo->read_buffer(m_draw_fbo->color[1]);
break;
case rsx::surface_target::surfaces_a_b:
m_draw_fbo->draw_buffers({ m_draw_fbo->color[0], m_draw_fbo->color[1] });
m_draw_fbo->read_buffer(m_draw_fbo->color[0]);
break;
case rsx::surface_target::surfaces_a_b_c:
m_draw_fbo->draw_buffers({ m_draw_fbo->color[0], m_draw_fbo->color[1], m_draw_fbo->color[2] });
m_draw_fbo->read_buffer(m_draw_fbo->color[0]);
break;
case rsx::surface_target::surfaces_a_b_c_d:
m_draw_fbo->draw_buffers({ m_draw_fbo->color[0], m_draw_fbo->color[1], m_draw_fbo->color[2], m_draw_fbo->color[3] });
m_draw_fbo->read_buffer(m_draw_fbo->color[0]);
break;
}
if (!m_draw_fbo->check())
{
m_graphics_state.clear(rsx::rtt_config_valid);
return;
}
m_graphics_state.set(rsx::rtt_config_valid);
check_zcull_status(true);
set_viewport();
set_scissor(clipped_scissor);
m_gl_texture_cache.clear_ro_tex_invalidate_intr();
if (!m_rtts.superseded_surfaces.empty())
{
for (auto& surface : m_rtts.superseded_surfaces)
{
m_gl_texture_cache.discard_framebuffer_memory_region(cmd, surface->get_memory_range());
}
m_rtts.superseded_surfaces.clear();
}
if (!m_rtts.orphaned_surfaces.empty())
{
gl::texture::format format;
gl::texture::type type;
bool swap_bytes;
for (auto& [base_addr, surface] : m_rtts.orphaned_surfaces)
{
bool lock = surface->is_depth_surface() ? !!g_cfg.video.write_depth_buffer :
!!g_cfg.video.write_color_buffers;
if (lock &&
#ifdef TEXTURE_CACHE_DEBUG
!m_gl_texture_cache.is_protected(
base_addr,
surface->get_memory_range(),
rsx::texture_upload_context::framebuffer_storage)
#else
!surface->is_locked()
#endif
)
{
lock = false;
}
if (!lock) [[likely]]
{
m_gl_texture_cache.commit_framebuffer_memory_region(cmd, surface->get_memory_range());
continue;
}
if (surface->is_depth_surface())
{
const auto depth_format_gl = rsx::internals::surface_depth_format_to_gl(surface->get_surface_depth_format());
format = depth_format_gl.format;
type = depth_format_gl.type;
swap_bytes = (type != gl::texture::type::uint_24_8);
}
else
{
const auto color_format_gl = rsx::internals::surface_color_format_to_gl(surface->get_surface_color_format());
format = color_format_gl.format;
type = color_format_gl.type;
swap_bytes = color_format_gl.swap_bytes;
}
m_gl_texture_cache.lock_memory_region(
cmd, surface, surface->get_memory_range(), false,
surface->get_surface_width<rsx::surface_metrics::pixels>(), surface->get_surface_height<rsx::surface_metrics::pixels>(), surface->get_rsx_pitch(),
format, type, swap_bytes);
}
m_rtts.orphaned_surfaces.clear();
}
const auto color_format = rsx::internals::surface_color_format_to_gl(m_framebuffer_layout.color_format);
for (u8 i = 0; i < rsx::limits::color_buffers_count; ++i)
{
if (!m_surface_info[i].address || !m_surface_info[i].pitch) continue;
const auto surface_range = m_surface_info[i].get_memory_range();
if (g_cfg.video.write_color_buffers)
{
// Mark buffer regions as NO_ACCESS on Cell-visible side
m_gl_texture_cache.lock_memory_region(
cmd, m_rtts.m_bound_render_targets[i].second, surface_range, true,
m_surface_info[i].width, m_surface_info[i].height, m_surface_info[i].pitch,
color_format.format, color_format.type, color_format.swap_bytes);
}
else
{
m_gl_texture_cache.commit_framebuffer_memory_region(cmd, surface_range);
}
}
if (m_depth_surface_info.address && m_depth_surface_info.pitch)
{
const auto surface_range = m_depth_surface_info.get_memory_range();
if (g_cfg.video.write_depth_buffer)
{
const auto depth_format_gl = rsx::internals::surface_depth_format_to_gl(m_framebuffer_layout.depth_format);
m_gl_texture_cache.lock_memory_region(
cmd, m_rtts.m_bound_depth_stencil.second, surface_range, true,
m_depth_surface_info.width, m_depth_surface_info.height, m_depth_surface_info.pitch,
depth_format_gl.format, depth_format_gl.type, depth_format_gl.type != gl::texture::type::uint_24_8);
}
else
{
m_gl_texture_cache.commit_framebuffer_memory_region(cmd, surface_range);
}
}
if (m_gl_texture_cache.get_ro_tex_invalidate_intr())
{
// Invalidate cached sampler state
m_samplers_dirty.store(true);
}
}
// Render target helpers
void gl::render_target::clear_memory(gl::command_context& cmd, gl::texture* surface)
{
auto dst = surface ? surface : this;
if (aspect() & gl::image_aspect::depth)
{
gl::g_hw_blitter->fast_clear_image(cmd, dst, 1.f, 255);
}
else
{
gl::g_hw_blitter->fast_clear_image(cmd, dst, {});
}
state_flags &= ~rsx::surface_state_flags::erase_bkgnd;
}
void gl::render_target::load_memory(gl::command_context& cmd)
{
const bool is_swizzled = (raster_type == rsx::surface_raster_type::swizzle);
rsx::subresource_layout subres{};
subres.width_in_block = subres.width_in_texel = surface_width * samples_x;
subres.height_in_block = subres.height_in_texel = surface_height * samples_y;
subres.pitch_in_block = rsx_pitch / get_bpp();
subres.depth = 1;
subres.data = { vm::get_super_ptr<const std::byte>(base_addr), static_cast<std::span<const std::byte>::size_type>(rsx_pitch * surface_height * samples_y) };
// TODO: MSAA support
if (g_cfg.video.resolution_scale_percent == 100 && spp == 1) [[likely]]
{
gl::upload_texture(cmd, this, get_gcm_format(), is_swizzled, { subres });
}
else
{
auto tmp = std::make_unique<gl::texture>(GL_TEXTURE_2D, subres.width_in_block, subres.height_in_block, 1, 1, 1, static_cast<GLenum>(get_internal_format()), format_class());
auto dst = samples() > 1 ? get_resolve_target_safe(cmd) : this;
gl::upload_texture(cmd, tmp.get(), get_gcm_format(), is_swizzled, { subres });
gl::g_hw_blitter->scale_image(cmd, tmp.get(), dst,
{ 0, 0, subres.width_in_block, subres.height_in_block },
{ 0, 0, static_cast<int>(width()), static_cast<int>(height()) },
!is_depth_surface(),
{});
if (samples() > 1)
{
msaa_flags = rsx::surface_state_flags::require_unresolve;
}
}
state_flags &= ~rsx::surface_state_flags::erase_bkgnd;
}
void gl::render_target::initialize_memory(gl::command_context& cmd, rsx::surface_access access)
{
const bool memory_load = is_depth_surface() ?
!!g_cfg.video.read_depth_buffer :
!!g_cfg.video.read_color_buffers;
if (!memory_load)
{
clear_memory(cmd);
if (samples() > 1 && access.is_transfer_or_read())
{
// Only clear the resolve surface if reading from it, otherwise it's a waste
clear_memory(cmd, get_resolve_target_safe(cmd));
}
msaa_flags = rsx::surface_state_flags::ready;
}
else
{
load_memory(cmd);
}
}
gl::viewable_image* gl::render_target::get_surface(rsx::surface_access access_type)
{
if (samples() == 1 || !access_type.is_transfer())
{
return this;
}
// A read barrier should have been called before this!
ensure(resolve_surface, "Read access without explicit barrier");
ensure(!(msaa_flags & rsx::surface_state_flags::require_resolve));
return static_cast<gl::viewable_image*>(resolve_surface.get());
}
void gl::render_target::memory_barrier(gl::command_context& cmd, rsx::surface_access access)
{
if (access == rsx::surface_access::gpu_reference)
{
// In OpenGL, resources are always assumed to be visible to the GPU.
// We don't manage memory spilling, so just return.
return;
}
const bool read_access = access.is_read();
const bool is_depth = is_depth_surface();
const bool should_read_buffers = is_depth ? !!g_cfg.video.read_depth_buffer : !!g_cfg.video.read_color_buffers;
if (should_read_buffers)
{
// TODO: Decide what to do when memory loads are disabled but the underlying has memory changed
// NOTE: Assume test() is expensive when in a pinch
if (last_use_tag && state_flags == rsx::surface_state_flags::ready && !test())
{
// TODO: Figure out why merely returning and failing the test does not work when reading (TLoU)
// The result should have been the same either way
state_flags |= rsx::surface_state_flags::erase_bkgnd;
}
}
if (old_contents.empty())
{
// No memory to inherit
if (dirty() && (read_access || state_flags & rsx::surface_state_flags::erase_bkgnd))
{
// Initialize memory contents if we did not find anything usable
initialize_memory(cmd, access);
on_write();
}
if (msaa_flags & rsx::surface_state_flags::require_resolve)
{
if (access.is_transfer())
{
// Only do this step when read access is required
get_resolve_target_safe(cmd);
resolve(cmd);
}
}
else if (msaa_flags & rsx::surface_state_flags::require_unresolve)
{
if (access == rsx::surface_access::shader_write)
{
// Only do this step when it is needed to start rendering
ensure(resolve_surface);
unresolve(cmd);
}
}
return;
}
auto dst_img = (samples() > 1) ? get_resolve_target_safe(cmd) : this;
const bool dst_is_depth = !!(aspect() & gl::image_aspect::depth);
const auto dst_bpp = get_bpp();
unsigned first = prepare_rw_barrier_for_transfer(this);
bool optimize_copy = true;
u64 newest_tag = 0;
for (auto i = first; i < old_contents.size(); ++i)
{
auto &section = old_contents[i];
auto src_texture = gl::as_rtt(section.source);
const auto src_bpp = src_texture->get_bpp();
rsx::typeless_xfer typeless_info{};
src_texture->memory_barrier(cmd, rsx::surface_access::transfer_read);
if (get_internal_format() == src_texture->get_internal_format())
{
// Copy data from old contents onto this one
ensure(src_bpp == dst_bpp);
}
else
{
// Mem cast, generate typeless xfer info
if (!formats_are_bitcast_compatible(this, src_texture))
{
typeless_info.src_is_typeless = true;
typeless_info.src_context = rsx::texture_upload_context::framebuffer_storage;
typeless_info.src_native_format_override = static_cast<u32>(get_internal_format());
typeless_info.src_gcm_format = src_texture->get_gcm_format();
typeless_info.src_scaling_hint = static_cast<f32>(src_bpp) / dst_bpp;
}
}
section.init_transfer(this);
auto src_area = section.src_rect();
auto dst_area = section.dst_rect();
if (g_cfg.video.antialiasing_level != msaa_level::none)
{
src_texture->transform_pixels_to_samples(src_area);
this->transform_pixels_to_samples(dst_area);
}
bool memory_load = true;
if (dst_area.x1 == 0 && dst_area.y1 == 0 &&
unsigned(dst_area.x2) == dst_img->width() && unsigned(dst_area.y2) == dst_img->height())
{
// Skip a bunch of useless work
state_flags &= ~(rsx::surface_state_flags::erase_bkgnd);
msaa_flags = rsx::surface_state_flags::ready;
memory_load = false;
stencil_init_flags = src_texture->stencil_init_flags;
}
else if (state_flags & rsx::surface_state_flags::erase_bkgnd)
{
// Might introduce MSAA flags
initialize_memory(cmd, rsx::surface_access::memory_write);
ensure(state_flags == rsx::surface_state_flags::ready);
}
if (msaa_flags & rsx::surface_state_flags::require_resolve)
{
// Need to forward resolve this
resolve(cmd);
}
if (src_texture->samples() > 1)
{
// Ensure a readable surface exists for the source
src_texture->get_resolve_target_safe(cmd);
}
gl::g_hw_blitter->scale_image(
cmd,
src_texture->get_surface(rsx::surface_access::transfer_read),
this->get_surface(rsx::surface_access::transfer_write),
src_area,
dst_area,
!dst_is_depth, typeless_info);
optimize_copy = optimize_copy && !memory_load;
newest_tag = src_texture->last_use_tag;
}
if (!newest_tag) [[unlikely]]
{
// Underlying memory has been modified and we could not find valid data to fill it
clear_rw_barrier();
state_flags |= rsx::surface_state_flags::erase_bkgnd;
initialize_memory(cmd, access);
ensure(state_flags == rsx::surface_state_flags::ready);
}
// NOTE: Optimize flag relates to stencil resolve/unresolve for NVIDIA.
on_write_copy(newest_tag, optimize_copy);
if (access == rsx::surface_access::shader_write && samples() > 1)
{
// Write barrier, must initialize
unresolve(cmd);
}
}
// MSAA support
gl::viewable_image* gl::render_target::get_resolve_target_safe(gl::command_context& /*cmd*/)
{
if (!resolve_surface)
{
// Create a resolve surface
const auto resolve_w = width() * samples_x;
const auto resolve_h = height() * samples_y;
resolve_surface.reset(new gl::viewable_image(
GL_TEXTURE_2D,
resolve_w, resolve_h,
1, 1, 1,
static_cast<GLenum>(get_internal_format()),
format_class()
));
}
return static_cast<gl::viewable_image*>(resolve_surface.get());
}
void gl::render_target::resolve(gl::command_context& cmd)
{
gl::resolve_image(cmd, get_resolve_target_safe(cmd), this);
msaa_flags &= ~(rsx::surface_state_flags::require_resolve);
}
void gl::render_target::unresolve(gl::command_context& cmd)
{
gl::unresolve_image(cmd, this, get_resolve_target_safe(cmd));
msaa_flags &= ~(rsx::surface_state_flags::require_unresolve);
}