| /* libs/pixelflinger/codeflinger/GGLAssembler.h |
| ** |
| ** Copyright 2006, The Android Open Source Project |
| ** |
| ** Licensed under the Apache License, Version 2.0 (the "License"); |
| ** you may not use this file except in compliance with the License. |
| ** You may obtain a copy of the License at |
| ** |
| ** http://www.apache.org/licenses/LICENSE-2.0 |
| ** |
| ** Unless required by applicable law or agreed to in writing, software |
| ** distributed under the License is distributed on an "AS IS" BASIS, |
| ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| ** See the License for the specific language governing permissions and |
| ** limitations under the License. |
| */ |
| |
| |
| #ifndef ANDROID_GGLASSEMBLER_H |
| #define ANDROID_GGLASSEMBLER_H |
| |
| #include <stdint.h> |
| #include <sys/types.h> |
| |
| #include <private/pixelflinger/ggl_context.h> |
| |
| #include "ARMAssemblerProxy.h" |
| |
| |
| namespace android { |
| |
| // ---------------------------------------------------------------------------- |
| |
| #define CONTEXT_LOAD(REG, FIELD) \ |
| LDR(AL, REG, mBuilderContext.Rctx, immed12_pre(GGL_OFFSETOF(FIELD))) |
| |
| #define CONTEXT_STORE(REG, FIELD) \ |
| STR(AL, REG, mBuilderContext.Rctx, immed12_pre(GGL_OFFSETOF(FIELD))) |
| |
| |
| class RegisterAllocator |
| { |
| public: |
| class RegisterFile; |
| |
| RegisterAllocator(int arch); |
| RegisterFile& registerFile(); |
| int reserveReg(int reg); |
| int obtainReg(); |
| void recycleReg(int reg); |
| void reset(); |
| |
| class RegisterFile |
| { |
| public: |
| RegisterFile(int arch); |
| RegisterFile(const RegisterFile& rhs, int arch); |
| ~RegisterFile(); |
| |
| void reset(); |
| |
| bool operator == (const RegisterFile& rhs) const; |
| bool operator != (const RegisterFile& rhs) const { |
| return !operator == (rhs); |
| } |
| |
| int reserve(int reg); |
| void reserveSeveral(uint32_t regMask); |
| |
| void recycle(int reg); |
| void recycleSeveral(uint32_t regMask); |
| |
| int obtain(); |
| inline int isUsed(int reg) const; |
| |
| bool hasFreeRegs() const; |
| int countFreeRegs() const; |
| |
| uint32_t touched() const; |
| inline uint32_t status() const { return mStatus; } |
| |
| enum { |
| OUT_OF_REGISTERS = 0x1 |
| }; |
| |
| private: |
| uint32_t mRegs; |
| uint32_t mTouched; |
| uint32_t mStatus; |
| int mArch; |
| uint32_t mRegisterOffset; // lets reg alloc use 2..17 for mips |
| // while arm uses 0..15 |
| }; |
| |
| class Scratch |
| { |
| public: |
| Scratch(RegisterFile& regFile) |
| : mRegFile(regFile), mScratch(0) { |
| } |
| ~Scratch() { |
| mRegFile.recycleSeveral(mScratch); |
| } |
| int obtain() { |
| int reg = mRegFile.obtain(); |
| mScratch |= 1<<reg; |
| return reg; |
| } |
| void recycle(int reg) { |
| mRegFile.recycle(reg); |
| mScratch &= ~(1<<reg); |
| } |
| bool isUsed(int reg) { |
| return (mScratch & (1<<reg)); |
| } |
| int countFreeRegs() { |
| return mRegFile.countFreeRegs(); |
| } |
| private: |
| RegisterFile& mRegFile; |
| uint32_t mScratch; |
| }; |
| |
| class Spill |
| { |
| public: |
| Spill(RegisterFile& regFile, ARMAssemblerInterface& gen, uint32_t reglist) |
| : mRegFile(regFile), mGen(gen), mRegList(reglist), mCount(0) |
| { |
| if (reglist) { |
| int count = 0; |
| while (reglist) { |
| count++; |
| reglist &= ~(1 << (31 - __builtin_clz(reglist))); |
| } |
| if (count == 1) { |
| int reg = 31 - __builtin_clz(mRegList); |
| mGen.STR(mGen.AL, reg, mGen.SP, mGen.immed12_pre(-4, 1)); |
| } else { |
| mGen.STM(mGen.AL, mGen.DB, mGen.SP, 1, mRegList); |
| } |
| mRegFile.recycleSeveral(mRegList); |
| mCount = count; |
| } |
| } |
| ~Spill() { |
| if (mRegList) { |
| if (mCount == 1) { |
| int reg = 31 - __builtin_clz(mRegList); |
| mGen.LDR(mGen.AL, reg, mGen.SP, mGen.immed12_post(4)); |
| } else { |
| mGen.LDM(mGen.AL, mGen.IA, mGen.SP, 1, mRegList); |
| } |
| mRegFile.reserveSeveral(mRegList); |
| } |
| } |
| private: |
| RegisterFile& mRegFile; |
| ARMAssemblerInterface& mGen; |
| uint32_t mRegList; |
| int mCount; |
| }; |
| |
| private: |
| RegisterFile mRegs; |
| }; |
| |
| // ---------------------------------------------------------------------------- |
| |
| class GGLAssembler : public ARMAssemblerProxy, public RegisterAllocator |
| { |
| public: |
| |
| GGLAssembler(ARMAssemblerInterface* target); |
| virtual ~GGLAssembler(); |
| |
| uint32_t* base() const { return 0; } // XXX |
| uint32_t* pc() const { return 0; } // XXX |
| |
| void reset(int opt_level); |
| |
| virtual void prolog(); |
| virtual void epilog(uint32_t touched); |
| |
| // generate scanline code for given needs |
| int scanline(const needs_t& needs, context_t const* c); |
| int scanline_core(const needs_t& needs, context_t const* c); |
| |
| enum { |
| CLEAR_LO = 0x0001, |
| CLEAR_HI = 0x0002, |
| CORRUPTIBLE = 0x0004, |
| FIRST = 0x0008 |
| }; |
| |
| enum { //load/store flags |
| WRITE_BACK = 0x0001 |
| }; |
| |
| struct reg_t { |
| reg_t() : reg(-1), flags(0) { |
| } |
| reg_t(int r, int f=0) |
| : reg(r), flags(f) { |
| } |
| void setTo(int r, int f=0) { |
| reg=r; flags=f; |
| } |
| int reg; |
| uint16_t flags; |
| }; |
| |
| struct integer_t : public reg_t { |
| integer_t() : reg_t(), s(0) { |
| } |
| integer_t(int r, int sz=32, int f=0) |
| : reg_t(r, f), s(sz) { |
| } |
| void setTo(int r, int sz=32, int f=0) { |
| reg_t::setTo(r, f); s=sz; |
| } |
| int8_t s; |
| inline int size() const { return s; } |
| }; |
| |
| struct pixel_t : public reg_t { |
| pixel_t() : reg_t() { |
| memset(&format, 0, sizeof(GGLFormat)); |
| } |
| pixel_t(int r, const GGLFormat* fmt, int f=0) |
| : reg_t(r, f), format(*fmt) { |
| } |
| void setTo(int r, const GGLFormat* fmt, int f=0) { |
| reg_t::setTo(r, f); format = *fmt; |
| } |
| GGLFormat format; |
| inline int hi(int c) const { return format.c[c].h; } |
| inline int low(int c) const { return format.c[c].l; } |
| inline int mask(int c) const { return ((1<<size(c))-1) << low(c); } |
| inline int size() const { return format.size*8; } |
| inline int size(int c) const { return component_size(c); } |
| inline int component_size(int c) const { return hi(c) - low(c); } |
| }; |
| |
| struct component_t : public reg_t { |
| component_t() : reg_t(), h(0), l(0) { |
| } |
| component_t(int r, int f=0) |
| : reg_t(r, f), h(0), l(0) { |
| } |
| component_t(int r, int lo, int hi, int f=0) |
| : reg_t(r, f), h(hi), l(lo) { |
| } |
| explicit component_t(const integer_t& rhs) |
| : reg_t(rhs.reg, rhs.flags), h(rhs.s), l(0) { |
| } |
| explicit component_t(const pixel_t& rhs, int component) { |
| setTo( rhs.reg, |
| rhs.format.c[component].l, |
| rhs.format.c[component].h, |
| rhs.flags|CLEAR_LO|CLEAR_HI); |
| } |
| void setTo(int r, int lo=0, int hi=0, int f=0) { |
| reg_t::setTo(r, f); h=hi; l=lo; |
| } |
| int8_t h; |
| int8_t l; |
| inline int size() const { return h-l; } |
| }; |
| |
| struct pointer_t : public reg_t { |
| pointer_t() : reg_t(), size(0) { |
| } |
| pointer_t(int r, int s, int f=0) |
| : reg_t(r, f), size(s) { |
| } |
| void setTo(int r, int s, int f=0) { |
| reg_t::setTo(r, f); size=s; |
| } |
| int8_t size; |
| }; |
| |
| |
| private: |
| struct tex_coord_t { |
| reg_t s; |
| reg_t t; |
| pointer_t ptr; |
| }; |
| |
| struct fragment_parts_t { |
| uint32_t packed : 1; |
| uint32_t reload : 2; |
| uint32_t iterated_packed : 1; |
| pixel_t iterated; |
| pointer_t cbPtr; |
| pointer_t covPtr; |
| reg_t count; |
| reg_t argb[4]; |
| reg_t argb_dx[4]; |
| reg_t z; |
| reg_t dither; |
| pixel_t texel[GGL_TEXTURE_UNIT_COUNT]; |
| tex_coord_t coords[GGL_TEXTURE_UNIT_COUNT]; |
| }; |
| |
| struct texture_unit_t { |
| int format_idx; |
| GGLFormat format; |
| int bits; |
| int swrap; |
| int twrap; |
| int env; |
| int pot; |
| int linear; |
| uint8_t mask; |
| uint8_t replaced; |
| }; |
| |
| struct texture_machine_t { |
| texture_unit_t tmu[GGL_TEXTURE_UNIT_COUNT]; |
| uint8_t mask; |
| uint8_t replaced; |
| uint8_t directTexture; |
| uint8_t activeUnits; |
| }; |
| |
| struct component_info_t { |
| bool masked : 1; |
| bool inDest : 1; |
| bool needed : 1; |
| bool replaced : 1; |
| bool iterated : 1; |
| bool smooth : 1; |
| bool blend : 1; |
| bool fog : 1; |
| }; |
| |
| struct builder_context_t { |
| context_t const* c; |
| needs_t needs; |
| int Rctx; |
| }; |
| |
| template <typename T> |
| void modify(T& r, Scratch& regs) |
| { |
| if (!(r.flags & CORRUPTIBLE)) { |
| r.reg = regs.obtain(); |
| r.flags |= CORRUPTIBLE; |
| } |
| } |
| |
| // helpers |
| void base_offset(const pointer_t& d, const pointer_t& b, const reg_t& o); |
| |
| // texture environement |
| void modulate( component_t& dest, |
| const component_t& incoming, |
| const pixel_t& texel, int component); |
| |
| void decal( component_t& dest, |
| const component_t& incoming, |
| const pixel_t& texel, int component); |
| |
| void blend( component_t& dest, |
| const component_t& incoming, |
| const pixel_t& texel, int component, int tmu); |
| |
| void add( component_t& dest, |
| const component_t& incoming, |
| const pixel_t& texel, int component); |
| |
| // load/store stuff |
| void store(const pointer_t& addr, const pixel_t& src, uint32_t flags=0); |
| void load(const pointer_t& addr, const pixel_t& dest, uint32_t flags=0); |
| void extract(integer_t& d, const pixel_t& s, int component); |
| void extract(component_t& d, const pixel_t& s, int component); |
| void extract(integer_t& d, int s, int h, int l, int bits=32); |
| void expand(integer_t& d, const integer_t& s, int dbits); |
| void expand(integer_t& d, const component_t& s, int dbits); |
| void expand(component_t& d, const component_t& s, int dbits); |
| void downshift(pixel_t& d, int component, component_t s, const reg_t& dither); |
| |
| |
| void mul_factor( component_t& d, |
| const integer_t& v, |
| const integer_t& f); |
| |
| void mul_factor_add( component_t& d, |
| const integer_t& v, |
| const integer_t& f, |
| const component_t& a); |
| |
| void component_add( component_t& d, |
| const integer_t& dst, |
| const integer_t& src); |
| |
| void component_sat( const component_t& v); |
| |
| |
| void build_scanline_prolog( fragment_parts_t& parts, |
| const needs_t& needs); |
| |
| void build_smooth_shade(const fragment_parts_t& parts); |
| |
| void build_component( pixel_t& pixel, |
| const fragment_parts_t& parts, |
| int component, |
| Scratch& global_scratches); |
| |
| void build_incoming_component( |
| component_t& temp, |
| int dst_size, |
| const fragment_parts_t& parts, |
| int component, |
| Scratch& scratches, |
| Scratch& global_scratches); |
| |
| void init_iterated_color(fragment_parts_t& parts, const reg_t& x); |
| |
| void build_iterated_color( component_t& fragment, |
| const fragment_parts_t& parts, |
| int component, |
| Scratch& regs); |
| |
| void decodeLogicOpNeeds(const needs_t& needs); |
| |
| void decodeTMUNeeds(const needs_t& needs, context_t const* c); |
| |
| void init_textures( tex_coord_t* coords, |
| const reg_t& x, |
| const reg_t& y); |
| |
| void build_textures( fragment_parts_t& parts, |
| Scratch& regs); |
| |
| void filter8( const fragment_parts_t& parts, |
| pixel_t& texel, const texture_unit_t& tmu, |
| int U, int V, pointer_t& txPtr, |
| int FRAC_BITS); |
| |
| void filter16( const fragment_parts_t& parts, |
| pixel_t& texel, const texture_unit_t& tmu, |
| int U, int V, pointer_t& txPtr, |
| int FRAC_BITS); |
| |
| void filter24( const fragment_parts_t& parts, |
| pixel_t& texel, const texture_unit_t& tmu, |
| int U, int V, pointer_t& txPtr, |
| int FRAC_BITS); |
| |
| void filter32( const fragment_parts_t& parts, |
| pixel_t& texel, const texture_unit_t& tmu, |
| int U, int V, pointer_t& txPtr, |
| int FRAC_BITS); |
| |
| void build_texture_environment( component_t& fragment, |
| const fragment_parts_t& parts, |
| int component, |
| Scratch& regs); |
| |
| void wrapping( int d, |
| int coord, int size, |
| int tx_wrap, int tx_linear); |
| |
| void build_fog( component_t& temp, |
| int component, |
| Scratch& parent_scratches); |
| |
| void build_blending( component_t& in_out, |
| const pixel_t& pixel, |
| int component, |
| Scratch& parent_scratches); |
| |
| void build_blend_factor( |
| integer_t& factor, int f, int component, |
| const pixel_t& dst_pixel, |
| integer_t& fragment, |
| integer_t& fb, |
| Scratch& scratches); |
| |
| void build_blendFOneMinusF( component_t& temp, |
| const integer_t& factor, |
| const integer_t& fragment, |
| const integer_t& fb); |
| |
| void build_blendOneMinusFF( component_t& temp, |
| const integer_t& factor, |
| const integer_t& fragment, |
| const integer_t& fb); |
| |
| void build_coverage_application(component_t& fragment, |
| const fragment_parts_t& parts, |
| Scratch& regs); |
| |
| void build_alpha_test(component_t& fragment, const fragment_parts_t& parts); |
| |
| enum { Z_TEST=1, Z_WRITE=2 }; |
| void build_depth_test(const fragment_parts_t& parts, uint32_t mask); |
| void build_iterate_z(const fragment_parts_t& parts); |
| void build_iterate_f(const fragment_parts_t& parts); |
| void build_iterate_texture_coordinates(const fragment_parts_t& parts); |
| |
| void build_logic_op(pixel_t& pixel, Scratch& regs); |
| |
| void build_masking(pixel_t& pixel, Scratch& regs); |
| |
| void build_and_immediate(int d, int s, uint32_t mask, int bits); |
| |
| bool isAlphaSourceNeeded() const; |
| |
| enum { |
| FACTOR_SRC=1, FACTOR_DST=2, BLEND_SRC=4, BLEND_DST=8 |
| }; |
| |
| enum { |
| LOGIC_OP=1, LOGIC_OP_SRC=2, LOGIC_OP_DST=4 |
| }; |
| |
| static int blending_codes(int fs, int fd); |
| |
| builder_context_t mBuilderContext; |
| texture_machine_t mTextureMachine; |
| component_info_t mInfo[4]; |
| int mBlending; |
| int mMasking; |
| int mAllMasked; |
| int mLogicOp; |
| int mAlphaTest; |
| int mAA; |
| int mDithering; |
| int mDepthTest; |
| |
| int mSmooth; |
| int mFog; |
| pixel_t mDstPixel; |
| |
| GGLFormat mCbFormat; |
| |
| int mBlendFactorCached; |
| integer_t mAlphaSource; |
| |
| int mBaseRegister; |
| |
| int mBlendSrc; |
| int mBlendDst; |
| int mBlendSrcA; |
| int mBlendDstA; |
| |
| int mOptLevel; |
| }; |
| |
| // ---------------------------------------------------------------------------- |
| |
| }; // namespace android |
| |
| #endif // ANDROID_GGLASSEMBLER_H |
