mirror of
https://github.com/dolphin-emu/dolphin.git
synced 2025-01-18 20:11:16 +01:00
6bdcde9dd6
It changes the string in the Android backend select to just OpenGL ES. Adds a check in the Android code to check for Tegra 4 and to enable the option to select the OpenGL ES backend. Adds a DriverDetails bug under BUG_ISTEGRA as a blanket case of Tegra 4 support. The changes that effects most lines in this change. Removing all float suffixes in the pixel/vertex/util shaders since OpenGL ES 2 doesn't support float suffixes. Disables the shaders for reinterpreting the EFB format since Tegra 4 doesn't support integers. Changes GLFunctions.cpp to grab the correct Tegra extension functions. Readds the GLSL 1.2 'hacks' as GLSLES2 'hacks' since they are required for GLSL ES 2 Adds a GLSLES2 to the GLSL_VERSION enum. Disable the SamplerCache on Tegra since Tegra doesn't support samplers... Enable glBufferSubData on Tegra since it is the only mobile GPU to correctly work with it. Disable glDrawRangeElements on Tegra since it doesn't support it, This uses glDrawElements instead.
123 lines
3.1 KiB
C++
123 lines
3.1 KiB
C++
// Copyright 2013 Dolphin Emulator Project
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// Licensed under GPLv2
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// Refer to the license.txt file included.
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#include "DriverDetails.h"
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#include "SamplerCache.h"
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namespace OGL
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{
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SamplerCache *g_sampler_cache;
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SamplerCache::SamplerCache()
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: m_last_max_anisotropy()
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{}
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SamplerCache::~SamplerCache()
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{
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if (!DriverDetails::HasBug(DriverDetails::BUG_ISTEGRA))
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Clear();
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}
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void SamplerCache::SetSamplerState(int stage, const TexMode0& tm0, const TexMode1& tm1)
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{
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if (DriverDetails::HasBug(DriverDetails::BUG_ISTEGRA))
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return;
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// TODO: can this go somewhere else?
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if (m_last_max_anisotropy != g_ActiveConfig.iMaxAnisotropy)
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{
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m_last_max_anisotropy = g_ActiveConfig.iMaxAnisotropy;
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Clear();
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}
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Params params(tm0, tm1);
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// take equivalent forced linear when bForceFiltering
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if (g_ActiveConfig.bForceFiltering)
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{
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params.tm0.min_filter |= 0x4;
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params.tm0.mag_filter |= 0x1;
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}
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// TODO: Should keep a circular buffer for each stage of recently used samplers.
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auto& active_sampler = m_active_samplers[stage];
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if (active_sampler.first != params || !active_sampler.second.sampler_id)
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{
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// Active sampler does not match parameters (or is invalid), bind the proper one.
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active_sampler.first = params;
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active_sampler.second = GetEntry(params);
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glBindSampler(stage, active_sampler.second.sampler_id);
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}
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}
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auto SamplerCache::GetEntry(const Params& params) -> Value&
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{
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auto& val = m_cache[params];
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if (!val.sampler_id)
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{
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// Sampler not found in cache, create it.
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glGenSamplers(1, &val.sampler_id);
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SetParameters(val.sampler_id, params);
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// TODO: Maybe kill old samplers if the cache gets huge. It doesn't seem to get huge though.
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//ERROR_LOG(VIDEO, "Sampler cache size is now %ld.", m_cache.size());
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}
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return val;
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}
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void SamplerCache::SetParameters(GLuint sampler_id, const Params& params)
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{
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static const GLint min_filters[8] =
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{
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GL_NEAREST,
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GL_NEAREST_MIPMAP_NEAREST,
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GL_NEAREST_MIPMAP_LINEAR,
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GL_NEAREST,
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GL_LINEAR,
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GL_LINEAR_MIPMAP_NEAREST,
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GL_LINEAR_MIPMAP_LINEAR,
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GL_LINEAR,
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};
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static const GLint wrap_settings[4] =
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{
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GL_CLAMP_TO_EDGE,
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GL_REPEAT,
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GL_MIRRORED_REPEAT,
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GL_REPEAT,
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};
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auto& tm0 = params.tm0;
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auto& tm1 = params.tm1;
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glSamplerParameteri(sampler_id, GL_TEXTURE_MIN_FILTER, min_filters[tm0.min_filter % ArraySize(min_filters)]);
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glSamplerParameteri(sampler_id, GL_TEXTURE_MAG_FILTER, tm0.mag_filter ? GL_LINEAR : GL_NEAREST);
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glSamplerParameteri(sampler_id, GL_TEXTURE_WRAP_S, wrap_settings[tm0.wrap_s]);
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glSamplerParameteri(sampler_id, GL_TEXTURE_WRAP_T, wrap_settings[tm0.wrap_t]);
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glSamplerParameterf(sampler_id, GL_TEXTURE_MIN_LOD, tm1.min_lod / 16.f);
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glSamplerParameterf(sampler_id, GL_TEXTURE_MAX_LOD, tm1.max_lod / 16.f);
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#ifndef USE_GLES3
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glSamplerParameterf(sampler_id, GL_TEXTURE_LOD_BIAS, (s32)tm0.lod_bias / 32.f);
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if (g_ActiveConfig.iMaxAnisotropy > 0)
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glSamplerParameterf(sampler_id, GL_TEXTURE_MAX_ANISOTROPY_EXT, (float)(1 << g_ActiveConfig.iMaxAnisotropy));
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#endif
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}
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void SamplerCache::Clear()
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{
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for (auto it = m_cache.begin(); it != m_cache.end(); ++it)
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{
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glDeleteSamplers(1, &it->second.sampler_id);
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}
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m_cache.clear();
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}
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}
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