Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Avoid updating the per frame constant buffer when not necessary. #15

Open
wants to merge 1 commit into
base: master
Choose a base branch
from
Open

Avoid updating the per frame constant buffer when not necessary. #15

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
40 changes: 23 additions & 17 deletions gfx_direct3d11.cpp
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -590,32 +590,38 @@ static void gfx_d3d11_draw_triangles(float buf_vbo[], size_t buf_vbo_len, size_t
d3d.context->RSSetState(d3d.rasterizer_state.Get());
}

bool textures_changed = false;
bool per_draw_cb_changed = false;

for (int i = 0; i < 2; i++) {
if (d3d.shader_program->used_textures[i]) {
if (d3d.last_resource_views[i].Get() != d3d.textures[d3d.current_texture_ids[i]].resource_view.Get()) {
d3d.last_resource_views[i] = d3d.textures[d3d.current_texture_ids[i]].resource_view.Get();
d3d.context->PSSetShaderResources(i, 1, d3d.textures[d3d.current_texture_ids[i]].resource_view.GetAddressOf());
if (!d3d.shader_program->used_textures[i])
continue;

#if THREE_POINT_FILTERING
d3d.per_draw_cb_data.textures[i].width = d3d.textures[d3d.current_texture_ids[i]].width;
d3d.per_draw_cb_data.textures[i].height = d3d.textures[d3d.current_texture_ids[i]].height;
d3d.per_draw_cb_data.textures[i].linear_filtering = d3d.textures[d3d.current_texture_ids[i]].linear_filtering;
textures_changed = true;
#endif
if (d3d.last_resource_views[i].Get() == d3d.textures[d3d.current_texture_ids[i]].resource_view.Get())
continue;

if (d3d.last_sampler_states[i].Get() != d3d.textures[d3d.current_texture_ids[i]].sampler_state.Get()) {
d3d.last_sampler_states[i] = d3d.textures[d3d.current_texture_ids[i]].sampler_state.Get();
d3d.context->PSSetSamplers(i, 1, d3d.textures[d3d.current_texture_ids[i]].sampler_state.GetAddressOf());
}
}
d3d.last_resource_views[i] = d3d.textures[d3d.current_texture_ids[i]].resource_view.Get();
d3d.context->PSSetShaderResources(i, 1, d3d.textures[d3d.current_texture_ids[i]].resource_view.GetAddressOf());

if (d3d.last_sampler_states[i].Get() != d3d.textures[d3d.current_texture_ids[i]].sampler_state.Get()) {
d3d.last_sampler_states[i] = d3d.textures[d3d.current_texture_ids[i]].sampler_state.Get();
d3d.context->PSSetSamplers(i, 1, d3d.textures[d3d.current_texture_ids[i]].sampler_state.GetAddressOf());
}

#if THREE_POINT_FILTERING
if (d3d.per_draw_cb_data.textures[i].width != d3d.textures[d3d.current_texture_ids[i]].width
|| d3d.per_draw_cb_data.textures[i].height != d3d.textures[d3d.current_texture_ids[i]].height
|| d3d.per_draw_cb_data.textures[i].linear_filtering != d3d.textures[d3d.current_texture_ids[i]].linear_filtering) {
d3d.per_draw_cb_data.textures[i].width = d3d.textures[d3d.current_texture_ids[i]].width;
d3d.per_draw_cb_data.textures[i].height = d3d.textures[d3d.current_texture_ids[i]].height;
d3d.per_draw_cb_data.textures[i].linear_filtering = d3d.textures[d3d.current_texture_ids[i]].linear_filtering;
per_draw_cb_changed = true;
}
#endif
}

// Set per-draw constant buffer

if (textures_changed) {
if (per_draw_cb_changed) {
D3D11_MAPPED_SUBRESOURCE ms;
ZeroMemory(&ms, sizeof(D3D11_MAPPED_SUBRESOURCE));
d3d.context->Map(d3d.per_draw_cb.Get(), 0, D3D11_MAP_WRITE_DISCARD, 0, &ms);
Expand Down