N-archive/suyu
1
0
Fork 0
mirror of https://git.suyu.dev/suyu/suyu.git synced 2024-11-27 09:12:46 +01:00
Code Issues Projects Releases Packages Wiki Activity Actions

gl_rasterizer_cache: Use std::vector::assign in LoadGLBuffer() for the non-tiled case

Browse source 
resize() causes the vector to expand and zero out the added members to
the vector, however we can avoid this zeroing by using assign().

Given we have the pointer to the data we want to copy, we can calculate
the end pointer and directly copy the range of data without the
need to perform the resize() beforehand.
This commit is contained in:
Lioncash 2018-08-08 23:28:01 -04:00
parent 557c466994
commit 434f352eb3
1 changed files with 6 additions and 4 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

10
src/video_core/renderer_opengl/gl_rasterizer_cache.cpp
View file

@ -451,16 +451,18 @@ void CachedSurface::LoadGLBuffer() {
ASSERT(texture_src_data);
gl_buffer.resize(params.width * params.height * GetGLBytesPerPixel(params.pixel_format));
const u32 bytes_per_pixel = GetGLBytesPerPixel(params.pixel_format);
const u32 copy_size = params.width * params.height * bytes_per_pixel;
MICROPROFILE_SCOPE(OpenGL_SurfaceLoad);
if (!params.is_tiled) {
const u32 bytes_per_pixel{params.GetFormatBpp() >> 3};
const u8* const texture_src_data_end = texture_src_data + copy_size;
std::memcpy(gl_buffer.data(), texture_src_data,
bytes_per_pixel * params.width * params.height);
gl_buffer.assign(texture_src_data, texture_src_data_end);
} else {
gl_buffer.resize(copy_size);
morton_to_gl_fns[static_cast<size_t>(params.pixel_format)](
params.width, params.block_height, params.height, gl_buffer.data(), params.addr);
}