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// Copyright 2015 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include <memory>
#include "common/hash.h"
#include "common/math_util.h"
#include "common/microprofile.h"
#include "common/vector_math.h"
#include "core/memory.h"
#include "video_core/debug_utils/debug_utils.h"
#include "video_core/renderer_opengl/gl_rasterizer_cache.h"
#include "video_core/renderer_opengl/pica_to_gl.h"
RasterizerCacheOpenGL::~RasterizerCacheOpenGL() {
InvalidateAll();
}
MICROPROFILE_DEFINE(OpenGL_TextureUpload, "OpenGL", "Texture Upload", MP_RGB(128, 64, 192));
void RasterizerCacheOpenGL::LoadAndBindTexture(OpenGLState &state, unsigned texture_unit, const Pica::DebugUtils::TextureInfo& info) {
const auto cached_texture = texture_cache.find(info.physical_address);
if (cached_texture != texture_cache.end()) {
state.texture_units[texture_unit].texture_2d = cached_texture->second->texture.handle;
state.Apply();
} else {
MICROPROFILE_SCOPE(OpenGL_TextureUpload);
std::unique_ptr<CachedTexture> new_texture = std::make_unique<CachedTexture>();
new_texture->texture.Create();
state.texture_units[texture_unit].texture_2d = new_texture->texture.handle;
state.Apply();
glActiveTexture(GL_TEXTURE0 + texture_unit);
u8* texture_src_data = Memory::GetPhysicalPointer(info.physical_address);
new_texture->width = info.width;
new_texture->height = info.height;
new_texture->size = info.stride * info.height;
new_texture->addr = info.physical_address;
new_texture->hash = Common::ComputeHash64(texture_src_data, new_texture->size);
std::unique_ptr<Math::Vec4<u8>[]> temp_texture_buffer_rgba(new Math::Vec4<u8>[info.width * info.height]);
for (int y = 0; y < info.height; ++y) {
for (int x = 0; x < info.width; ++x) {
temp_texture_buffer_rgba[x + info.width * y] = Pica::DebugUtils::LookupTexture(texture_src_data, x, info.height - 1 - y, info);
}
}
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, info.width, info.height, 0, GL_RGBA, GL_UNSIGNED_BYTE, temp_texture_buffer_rgba.get());
texture_cache.emplace(info.physical_address, std::move(new_texture));
}
}
void RasterizerCacheOpenGL::InvalidateInRange(PAddr addr, u32 size, bool ignore_hash) {
// TODO: Optimize by also inserting upper bound (addr + size) of each texture into the same map and also narrow using lower_bound
auto cache_upper_bound = texture_cache.upper_bound(addr + size);
for (auto it = texture_cache.begin(); it != cache_upper_bound;) {
const auto& info = *it->second;
// Flush the texture only if the memory region intersects and a change is detected
if (MathUtil::IntervalsIntersect(addr, size, info.addr, info.size) &&
(ignore_hash || info.hash != Common::ComputeHash64(Memory::GetPhysicalPointer(info.addr), info.size))) {
it = texture_cache.erase(it);
} else {
++it;
}
}
}
void RasterizerCacheOpenGL::InvalidateAll() {
texture_cache.clear();
}
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