From 65ea52394b7b9d8356ee5e9b0e1fce62ce99712f Mon Sep 17 00:00:00 2001 From: Subv Date: Mon, 26 Mar 2018 21:49:05 -0500 Subject: GLCache: Support uploading compressed textures to the GPU. Compressed texture formats like DXT1, DXT2, DXT3, etc will use this to ease the load on the CPU. --- .../renderer_opengl/gl_rasterizer_cache.cpp | 22 +++++++++++++++++----- 1 file changed, 17 insertions(+), 5 deletions(-) diff --git a/src/video_core/renderer_opengl/gl_rasterizer_cache.cpp b/src/video_core/renderer_opengl/gl_rasterizer_cache.cpp index fe9c76917..942b12d70 100644 --- a/src/video_core/renderer_opengl/gl_rasterizer_cache.cpp +++ b/src/video_core/renderer_opengl/gl_rasterizer_cache.cpp @@ -134,8 +134,11 @@ static void AllocateSurfaceTexture(GLuint texture, const FormatTuple& format_tup cur_state.Apply(); glActiveTexture(GL_TEXTURE0); - glTexImage2D(GL_TEXTURE_2D, 0, format_tuple.internal_format, width, height, 0, - format_tuple.format, format_tuple.type, nullptr); + if (!format_tuple.compressed) { + // Only pre-create the texture for non-compressed textures. + glTexImage2D(GL_TEXTURE_2D, 0, format_tuple.internal_format, width, height, 0, + format_tuple.format, format_tuple.type, nullptr); + } glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAX_LEVEL, 0); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); @@ -565,9 +568,18 @@ void CachedSurface::UploadGLTexture(const MathUtil::Rectangle& rect, GLuint glPixelStorei(GL_UNPACK_ROW_LENGTH, static_cast(stride)); glActiveTexture(GL_TEXTURE0); - glTexSubImage2D(GL_TEXTURE_2D, 0, x0, y0, static_cast(rect.GetWidth()), - static_cast(rect.GetHeight()), tuple.format, tuple.type, - &gl_buffer[buffer_offset]); + if (tuple.compressed) { + glCompressedTexImage2D(GL_TEXTURE_2D, 0, tuple.internal_format, + static_cast(rect.GetWidth()), + static_cast(rect.GetHeight()), 0, + rect.GetWidth() * rect.GetHeight() * + GetGLBytesPerPixel(pixel_format) / tuple.compression_factor, + &gl_buffer[buffer_offset]); + } else { + glTexSubImage2D(GL_TEXTURE_2D, 0, x0, y0, static_cast(rect.GetWidth()), + static_cast(rect.GetHeight()), tuple.format, tuple.type, + &gl_buffer[buffer_offset]); + } glPixelStorei(GL_UNPACK_ROW_LENGTH, 0); -- cgit v1.2.3