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gl_texture_cache: Simplify rescaling

This commit is contained in:
ameerj 2021-07-22 01:34:46 -04:00 committed by Fernando Sahmkow
parent d5143c83a9
commit fad2c92a39
2 changed files with 15 additions and 19 deletions
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31
src/video_core/renderer_opengl/gl_texture_cache.cpp
View File

@ -480,7 +480,8 @@ 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();
rescale_draw_fbo.Create();
rescale_read_fbo.Create();
}
}
@ -881,8 +882,11 @@ bool Image::Scale(bool scale_src, bool scale_dst) {
UNIMPLEMENTED();
return false;
}
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)) {
case SurfaceType::ColorTexture:
@ -931,35 +935,26 @@ bool Image::Scale(bool scale_src, bool scale_dst) {
dst_info.size.height = dst_height;
auto dst_texture = MakeImage(dst_info, gl_internal_format);
const auto& blit_fbo = runtime->rescale_fbo;
const auto& read_fbo = runtime->rescale_read_fbo;
const auto& draw_fbo = runtime->rescale_draw_fbo;
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, draw_fbo.handle);
glBindFramebuffer(GL_READ_FRAMEBUFFER, read_fbo.handle);
for (s32 level = 0; level < info.resources.levels; ++level) {
const u32 src_level_width = std::max(1u, src_width >> level);
const u32 src_level_height = std::max(1u, src_height >> level);
const u32 dst_level_width = std::max(1u, dst_width >> level);
const u32 dst_level_height = std::max(1u, dst_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, src_level_width,
glNamedFramebufferTexture(read_fbo.handle, attachment, texture.handle, level);
glNamedFramebufferTexture(draw_fbo.handle, attachment, dst_texture.handle, level);
glBlitNamedFramebuffer(read_fbo.handle, draw_fbo.handle, 0, 0, src_level_width,
src_level_height, 0, 0, dst_level_width, dst_level_height, mask,
filter);
switch (info.type) {
case ImageType::e1D:
glCopyTextureSubImage2D(dst_texture.handle, level, 0, 0, 0, 0, dst_level_width,
dst_level_height);
break;
case ImageType::e2D:
glCopyTextureSubImage3D(dst_texture.handle, level, 0, 0, 0, 0, 0, dst_level_width,
dst_level_height);
break;
case ImageType::e3D:
default:
UNREACHABLE();
}
}
texture = std::move(dst_texture);
// Restore previous framebuffers
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, prev_draw_fbo);
glBindFramebuffer(GL_READ_FRAMEBUFFER, prev_read_fbo);
return true;
}

3
src/video_core/renderer_opengl/gl_texture_cache.h
View File

@ -155,7 +155,8 @@ private:
std::array<GLuint, Shader::NUM_TEXTURE_TYPES> null_image_views{};
OGLFramebuffer rescale_fbo;
OGLFramebuffer rescale_draw_fbo;
OGLFramebuffer rescale_read_fbo;
Settings::ResolutionScalingInfo resolution;
bool is_rescaling_on{};
};