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gs-mipmapper: Specify source and target and remove Bilinear

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This commit is contained in:
Michael Fabian 'Xaymar' Dirks 2018-09-28 14:24:30 +02:00
parent afc04a5d0e
commit ff8618c339
2 changed files with 46 additions and 23 deletions
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66
source/gs-mipmapper.cpp
View file

@ -98,40 +98,65 @@ gs::mipmapper::mipmapper()
bfree(effect_file);
}
void gs::mipmapper::rebuild(std::shared_ptr<gs::texture> texture,
gs::mipmapper::generator generator = gs::mipmapper::generator::Bilinear,
float_t strength = 1.0)
void gs::mipmapper::rebuild(std::shared_ptr<gs::texture> source, std::shared_ptr<gs::texture> target,
gs::mipmapper::generator generator = gs::mipmapper::generator::Linear,
float_t strength = 1.0)
{
// Here be dragons! You have been warned.
// Do nothing if there is no texture given.
if (!texture) {
if (!source) {
#ifdef _DEBUG
assert(!texture);
assert(!source);
#endif
return;
}
if (!target) {
#ifdef _DEBUG
assert(!target);
#endif
return;
}
// Ensure texture sizes match
if ((source->get_width() != target->get_width()) || (source->get_height() != target->get_height())) {
throw std::invalid_argument("source and target must have same size");
}
// Ensure texture types match
if ((source->get_type() != target->get_type())) {
throw std::invalid_argument("source and target must have same type");
}
// Ensure texture formats match
if ((source->get_color_format() != target->get_color_format())) {
throw std::invalid_argument("source and target must have same format");
}
obs_enter_graphics();
// Copy original texture
gs_copy_texture(target->get_object(), source->get_object());
// Test if we actually need to recreate the render target for a different format.
bool recreate = false;
if (renderTarget) {
recreate = (texture->get_color_format() != renderTarget->get_color_format());
recreate = (source->get_color_format() != renderTarget->get_color_format());
} else {
recreate = true;
}
// Re-create the render target if necessary.
if (recreate) {
renderTarget = std::make_unique<gs::rendertarget>(texture->get_color_format(), GS_ZS_NONE);
renderTarget = std::make_unique<gs::rendertarget>(source->get_color_format(), GS_ZS_NONE);
}
// Render
graphics_t* ctx = gs_get_context();
gs_d3d11_device* dev = reinterpret_cast<gs_d3d11_device*>(ctx->device);
int device_type = gs_get_device_type();
void* obj = gs_texture_get_obj(texture->get_object());
void* sobj = gs_texture_get_obj(source->get_object());
void* tobj = gs_texture_get_obj(target->get_object());
std::string technique = "Draw";
switch (generator) {
@ -141,9 +166,6 @@ void gs::mipmapper::rebuild(std::shared_ptr<gs::texture> texture,
case generator::Linear:
technique = "Linear";
break;
case generator::Bilinear:
technique = "Bilinear";
break;
case generator::Sharpen:
technique = "Sharpen";
break;
@ -161,27 +183,28 @@ void gs::mipmapper::rebuild(std::shared_ptr<gs::texture> texture,
gs_load_vertexbuffer(vertexBuffer->update());
gs_load_indexbuffer(nullptr);
if (texture->get_type() == gs::texture::type::Normal) {
size_t texture_width = texture->get_width();
size_t texture_height = texture->get_height();
if (source->get_type() == gs::texture::type::Normal) {
size_t texture_width = source->get_width();
size_t texture_height = source->get_height();
float_t texel_width = 1.0 / texture_width;
float_t texel_height = 1.0 / texture_height;
#if defined(WIN32) || defined(WIN64)
if (device_type == GS_DEVICE_DIRECT3D_11) {
// We definitely have a Direct3D11 resource.
D3D11_TEXTURE2D_DESC t2dsc;
ID3D11Texture2D* t2 = reinterpret_cast<ID3D11Texture2D*>(obj);
D3D11_TEXTURE2D_DESC target_t2desc;
ID3D11Texture2D* target_t2 = reinterpret_cast<ID3D11Texture2D*>(tobj);
ID3D11Texture2D* source_t2 = reinterpret_cast<ID3D11Texture2D*>(sobj);
t2->GetDesc(&t2dsc);
target_t2->GetDesc(&target_t2desc);
// If we do not have any miplevels, just stop now.
if (t2dsc.MipLevels == 0) {
if (target_t2desc.MipLevels == 0) {
obs_leave_graphics();
return;
}
for (size_t mip = 1; mip < t2dsc.MipLevels; mip++) {
for (size_t mip = 1; mip < target_t2desc.MipLevels; mip++) {
texture_width /= 2;
texture_height /= 2;
texel_width *= 2;
@ -191,7 +214,8 @@ void gs::mipmapper::rebuild(std::shared_ptr<gs::texture> texture,
{
auto op = renderTarget->render(texture_width, texture_height);
effect->get_parameter("image").set_texture(texture);
effect->get_parameter("image").set_texture(target);
effect->get_parameter("level").set_int(mip - 1);
effect->get_parameter("imageTexel").set_float2(texel_width, texel_height);
effect->get_parameter("strength").set_float(strength);
@ -203,7 +227,7 @@ void gs::mipmapper::rebuild(std::shared_ptr<gs::texture> texture,
// Copy
ID3D11Texture2D* rt =
reinterpret_cast<ID3D11Texture2D*>(gs_texture_get_obj(renderTarget->get_object()));
dev->context->CopySubresourceRegion(t2, mip, 0, 0, 0, rt, 0, nullptr);
dev->context->CopySubresourceRegion(target_t2, mip, 0, 0, 0, rt, 0, nullptr);
}
}
#endif

3
source/gs-mipmapper.h
View file

@ -40,7 +40,6 @@ namespace gs {
enum class generator : uint8_t {
Point,
Linear,
Bilinear,
Sharpen,
Smoothen,
Bicubic,
@ -51,6 +50,6 @@ namespace gs {
~mipmapper();
mipmapper();
void rebuild(std::shared_ptr<gs::texture> texture, gs::mipmapper::generator generator, float_t strength);
void rebuild(std::shared_ptr<gs::texture> source, std::shared_ptr<gs::texture> target, gs::mipmapper::generator generator, float_t strength);
};
} // namespace gs