forked from suyu/suyu
78 lines
3.1 KiB
C++
78 lines
3.1 KiB
C++
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// Copyright 2015 Citra Emulator Project
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// Licensed under GPLv2 or any later version
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// Refer to the license.txt file included.
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#include "common/make_unique.h"
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#include "common/math_util.h"
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#include "core/memory.h"
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#include "video_core/renderer_opengl/gl_rasterizer_cache.h"
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#include "video_core/renderer_opengl/pica_to_gl.h"
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#include "video_core/debug_utils/debug_utils.h"
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#include "video_core/math.h"
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RasterizerCacheOpenGL::~RasterizerCacheOpenGL() {
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FullFlush();
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}
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void RasterizerCacheOpenGL::LoadAndBindTexture(OpenGLState &state, unsigned texture_unit, const Pica::Regs::FullTextureConfig& config) {
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PAddr texture_addr = config.config.GetPhysicalAddress();
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const auto cached_texture = texture_cache.find(texture_addr);
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if (cached_texture != texture_cache.end()) {
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state.texture_units[texture_unit].texture_2d = cached_texture->second->texture.handle;
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state.Apply();
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} else {
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std::unique_ptr<CachedTexture> new_texture = Common::make_unique<CachedTexture>();
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new_texture->texture.Create();
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state.texture_units[texture_unit].texture_2d = new_texture->texture.handle;
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state.Apply();
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// TODO: Need to choose filters that correspond to PICA once register is declared
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, PicaToGL::WrapMode(config.config.wrap_s));
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, PicaToGL::WrapMode(config.config.wrap_t));
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const auto info = Pica::DebugUtils::TextureInfo::FromPicaRegister(config.config, config.format);
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new_texture->width = info.width;
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new_texture->height = info.height;
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new_texture->size = info.width * info.height * Pica::Regs::NibblesPerPixel(info.format);
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u8* texture_src_data = Memory::GetPhysicalPointer(texture_addr);
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std::unique_ptr<Math::Vec4<u8>[]> temp_texture_buffer_rgba(new Math::Vec4<u8>[info.width * info.height]);
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for (int y = 0; y < info.height; ++y) {
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for (int x = 0; x < info.width; ++x) {
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temp_texture_buffer_rgba[x + info.width * y] = Pica::DebugUtils::LookupTexture(texture_src_data, x, info.height - 1 - y, info);
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}
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}
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glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, info.width, info.height, 0, GL_RGBA, GL_UNSIGNED_BYTE, temp_texture_buffer_rgba.get());
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texture_cache.emplace(texture_addr, std::move(new_texture));
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}
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}
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void RasterizerCacheOpenGL::NotifyFlush(PAddr addr, u32 size) {
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// Flush any texture that falls in the flushed region
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// TODO: Optimize by also inserting upper bound (addr + size) of each texture into the same map and also narrow using lower_bound
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auto cache_upper_bound = texture_cache.upper_bound(addr + size);
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for (auto it = texture_cache.begin(); it != cache_upper_bound;) {
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if (MathUtil::IntervalsIntersect(addr, size, it->first, it->second->size)) {
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it = texture_cache.erase(it);
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} else {
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++it;
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}
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}
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}
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void RasterizerCacheOpenGL::FullFlush() {
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texture_cache.clear();
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}
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