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gl_texture_cache: Rescale fixes for multi-layered textures

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This commit is contained in:
ameerj 2021-07-21 20:50:15 -04:00 committed by Fernando Sahmkow
parent dfc65cd0a3
commit 0a6c895af7
2 changed files with 32 additions and 16 deletions
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47
src/video_core/renderer_opengl/gl_texture_cache.cpp
View file

@ -479,6 +479,9 @@ TextureCacheRuntime::~TextureCacheRuntime() = default;
void TextureCacheRuntime::Init() {
resolution = Settings::values.resolution_info;
is_rescaling_on = resolution.up_scale != 1 || resolution.down_shift != 0;
if (is_rescaling_on) {
rescale_fbo.Create();
}
}
void TextureCacheRuntime::Finish() {
@ -867,8 +870,10 @@ void Image::CopyImageToBuffer(const VideoCommon::BufferImageCopy& copy, size_t b
}
void Image::Scale(u32 up, u32 down) {
// TODO: Pass scaling factor?
if (gl_format == 0 || gl_type == 0) {
if (!runtime->is_rescaling_on) {
return;
}
if (gl_format == 0 && gl_type == 0) {
// compressed textures
return;
}
@ -876,9 +881,7 @@ void Image::Scale(u32 up, u32 down) {
UNIMPLEMENTED();
return;
}
GLint prev_draw_fbo;
GLint prev_read_fbo;
glGetIntegerv(GL_DRAW_FRAMEBUFFER_BINDING, &prev_draw_fbo);
glGetIntegerv(GL_READ_FRAMEBUFFER_BINDING, &prev_read_fbo);
const GLenum attachment = [this] {
switch (GetFormatType(info.format)) {
@ -907,15 +910,10 @@ void Image::Scale(u32 up, u32 down) {
}
}();
const GLenum filter = (mask & GL_COLOR_BUFFER_BIT) != 0 ? GL_LINEAR : GL_NEAREST;
GLuint fbo_handle;
glGenFramebuffers(1, &fbo_handle);
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, fbo_handle);
glBindFramebuffer(GL_READ_FRAMEBUFFER, fbo_handle);
glNamedFramebufferTexture(fbo_handle, attachment, texture.handle, 0);
const auto scale_up = [&](u32 value) { return std::max<u32>((value * up) >> down, 1U); };
const bool is_2d = info.type == ImageType::e2D;
const u32 scaled_width = scale_up(info.size.width);
const u32 scaled_height = scale_up(info.size.height);
const u32 scaled_height = is_2d ? scale_up(info.size.height) : info.size.height;
const u32 original_width = info.size.width;
const u32 original_height = info.size.height;
@ -923,14 +921,31 @@ void Image::Scale(u32 up, u32 down) {
scaled_info.size.width = scaled_width;
scaled_info.size.height = scaled_height;
auto scaled_texture = MakeImage(scaled_info, gl_internal_format);
glBlitNamedFramebuffer(fbo_handle, fbo_handle, 0, 0, original_width, original_height, 0, 0,
scaled_width, scaled_height, mask, filter);
glCopyTextureSubImage3D(scaled_texture.handle, 0, 0, 0, 0, 0, 0, scaled_width, scaled_height);
const auto& blit_fbo = runtime->rescale_fbo;
for (s32 level = 0; level < info.resources.levels; ++level) {
const u32 level_width = scaled_width >> level;
const u32 level_height = scaled_height >> level;
glBindFramebuffer(GL_READ_FRAMEBUFFER, blit_fbo.handle);
glNamedFramebufferTexture(blit_fbo.handle, attachment, texture.handle, level);
glBlitNamedFramebuffer(blit_fbo.handle, blit_fbo.handle, 0, 0, original_width,
original_height, 0, 0, level_width, level_height, mask, filter);
switch (info.type) {
case ImageType::e1D:
glCopyTextureSubImage2D(scaled_texture.handle, level, 0, 0, 0, 0, level_width,
level_height);
break;
case ImageType::e2D:
glCopyTextureSubImage3D(scaled_texture.handle, level, 0, 0, 0, 0, 0, level_width,
level_height);
break;
case ImageType::e3D:
default:
UNREACHABLE();
}
}
texture = std::move(scaled_texture);
// Restore previous framebuffers
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, prev_draw_fbo);
glBindFramebuffer(GL_READ_FRAMEBUFFER, prev_read_fbo);
}

1
src/video_core/renderer_opengl/gl_texture_cache.h
View file

@ -155,6 +155,7 @@ private:
std::array<GLuint, Shader::NUM_TEXTURE_TYPES> null_image_views{};
OGLFramebuffer rescale_fbo;
Settings::ResolutionScalingInfo resolution;
bool is_rescaling_on{};
};