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Fixed mipmap block autosizing algorithm

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This commit is contained in:
FernandoS27 2018-10-26 19:18:03 -04:00
parent 87f8181405
commit f0e902a7d6
3 changed files with 25 additions and 13 deletions
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8
src/video_core/renderer_opengl/gl_rasterizer_cache.cpp
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@ -103,7 +103,7 @@ std::size_t SurfaceParams::InnerMipmapMemorySize(u32 mip_level, bool force_gl, b
? m_height
: std::max(1U, (m_height + compression_factor - 1) / compression_factor);
m_depth = std::max(1U, m_depth >> mip_level);
u32 m_block_height = MipBlockHeight(mip_level, m_height);
u32 m_block_height = MipBlockHeight(mip_level);
u32 m_block_depth = MipBlockDepth(mip_level);
return Tegra::Texture::CalculateSize(force_gl ? false : is_tiled, bytes_per_pixel, m_width,
m_height, m_depth, m_block_height, m_block_depth);
@ -111,7 +111,7 @@ std::size_t SurfaceParams::InnerMipmapMemorySize(u32 mip_level, bool force_gl, b
std::size_t SurfaceParams::InnerMemorySize(bool force_gl, bool layer_only,
bool uncompressed) const {
std::size_t block_size_bytes = 512 * block_height * block_depth; // 512 is GOB size
std::size_t block_size_bytes = Tegra::Texture::GetGOBSize() * block_height * block_depth;
std::size_t size = 0;
for (u32 i = 0; i < max_mip_level; i++) {
size += InnerMipmapMemorySize(i, force_gl, layer_only, uncompressed);
@ -1043,8 +1043,8 @@ void CachedSurface::FlushGLBuffer() {
glPixelStorei(GL_PACK_ROW_LENGTH, static_cast<GLint>(params.width));
ASSERT(!tuple.compressed);
glBindBuffer(GL_PIXEL_PACK_BUFFER, 0);
glGetTextureImage(texture.handle, 0, tuple.format, tuple.type, static_cast<GLsizei>(gl_buffer[0].size()),
gl_buffer[0].data());
glGetTextureImage(texture.handle, 0, tuple.format, tuple.type,
static_cast<GLsizei>(gl_buffer[0].size()), gl_buffer[0].data());
glPixelStorei(GL_PACK_ROW_LENGTH, 0);
ConvertFormatAsNeeded_FlushGLBuffer(gl_buffer[0], params.pixel_format, params.width,
params.height);

24
src/video_core/renderer_opengl/gl_rasterizer_cache.h
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@ -917,14 +917,14 @@ struct SurfaceParams {
// Auto block resizing algorithm from:
// https://cgit.freedesktop.org/mesa/mesa/tree/src/gallium/drivers/nouveau/nv50/nv50_miptree.c
u32 MipBlockHeight(u32 mip_level, u32 alt_height = 0) const {
u32 MipBlockHeight(u32 mip_level) const {
if (mip_level == 0)
return block_height;
if (alt_height == 0)
alt_height = MipHeight(mip_level);
u32 blocks_in_y = (alt_height + 7) / 8;
u32 bh = 32;
while (bh > 1 && blocks_in_y <= bh * 2) {
u32 alt_height = MipHeight(mip_level);
u32 h = GetDefaultBlockHeight(pixel_format);
u32 blocks_in_y = (alt_height + h - 1) / h;
u32 bh = 16;
while (bh > 1 && blocks_in_y <= bh * 4) {
bh >>= 1;
}
return bh;
@ -933,11 +933,17 @@ struct SurfaceParams {
u32 MipBlockDepth(u32 mip_level) const {
if (mip_level == 0)
return block_depth;
if (is_layered)
return 1;
u32 depth = MipDepth(mip_level);
u32 bd = 32;
// Magical block resizing algorithm, needs more testing.
while (bd > 1 && depth / depth <= bd) {
bd = bd >> 1;
while (bd > 1 && depth * 2 <= bd) {
bd >>= 1;
}
if (bd == 32) {
u32 bh = MipBlockHeight(mip_level);
if (bh >= 4)
return 16;
}
return bd;
}

6
src/video_core/textures/decoders.h
View File

@ -10,6 +10,12 @@
namespace Tegra::Texture {
// GOBSize constant. Calculated by 64 bytes in x multiplied by 8 y coords, represents
// an small rect of (64/bytes_per_pixel)X8.
inline std::size_t GetGOBSize() {
return 512;
}
/**
* Unswizzles a swizzled texture without changing its format.
*/