diff options
Diffstat (limited to 'libpixelflinger/include/private/pixelflinger/ggl_context.h')
| -rw-r--r-- | libpixelflinger/include/private/pixelflinger/ggl_context.h | 565 |
1 files changed, 0 insertions, 565 deletions
diff --git a/libpixelflinger/include/private/pixelflinger/ggl_context.h b/libpixelflinger/include/private/pixelflinger/ggl_context.h deleted file mode 100644 index d43655c..0000000 --- a/libpixelflinger/include/private/pixelflinger/ggl_context.h +++ /dev/null @@ -1,565 +0,0 @@ -/* - * Copyright (C) 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_GGL_CONTEXT_H -#define ANDROID_GGL_CONTEXT_H - -#include <stdint.h> -#include <stddef.h> -#include <string.h> -#include <sys/types.h> -#include <endian.h> - -#include <pixelflinger/pixelflinger.h> -#include <private/pixelflinger/ggl_fixed.h> - -namespace android { - -// ---------------------------------------------------------------------------- - -#if BYTE_ORDER == LITTLE_ENDIAN - -inline uint32_t GGL_RGBA_TO_HOST(uint32_t v) { - return v; -} -inline uint32_t GGL_HOST_TO_RGBA(uint32_t v) { - return v; -} - -#else - -inline uint32_t GGL_RGBA_TO_HOST(uint32_t v) { -#if defined(__mips__) && __mips==32 && __mips_isa_rev>=2 - uint32_t r; - __asm__("wsbh %0, %1;" - "rotr %0, %0, 16" - : "=r" (r) - : "r" (v) - ); - return r; -#else - return (v<<24) | (v>>24) | ((v<<8)&0xff0000) | ((v>>8)&0xff00); -#endif -} -inline uint32_t GGL_HOST_TO_RGBA(uint32_t v) { -#if defined(__mips__) && __mips==32 && __mips_isa_rev>=2 - uint32_t r; - __asm__("wsbh %0, %1;" - "rotr %0, %0, 16" - : "=r" (r) - : "r" (v) - ); - return r; -#else - return (v<<24) | (v>>24) | ((v<<8)&0xff0000) | ((v>>8)&0xff00); -#endif -} - -#endif - -// ---------------------------------------------------------------------------- - -const int GGL_DITHER_BITS = 6; // dither weights stored on 6 bits -const int GGL_DITHER_ORDER_SHIFT= 3; -const int GGL_DITHER_ORDER = (1<<GGL_DITHER_ORDER_SHIFT); -const int GGL_DITHER_SIZE = GGL_DITHER_ORDER * GGL_DITHER_ORDER; -const int GGL_DITHER_MASK = GGL_DITHER_ORDER-1; - -// ---------------------------------------------------------------------------- - -const int GGL_SUBPIXEL_BITS = 4; - -// TRI_FRACTION_BITS defines the number of bits we want to use -// for the sub-pixel coordinates during the edge stepping, the -// value shouldn't be more than 7, or bad things are going to -// happen when drawing large triangles (8 doesn't work because -// 32 bit muls will loose the sign bit) - -#define TRI_FRACTION_BITS (GGL_SUBPIXEL_BITS) -#define TRI_ONE (1 << TRI_FRACTION_BITS) -#define TRI_HALF (1 << (TRI_FRACTION_BITS-1)) -#define TRI_FROM_INT(x) ((x) << TRI_FRACTION_BITS) -#define TRI_FRAC(x) ((x) & (TRI_ONE-1)) -#define TRI_FLOOR(x) ((x) & ~(TRI_ONE-1)) -#define TRI_CEIL(x) (((x) + (TRI_ONE-1)) & ~(TRI_ONE-1)) -#define TRI_ROUND(x) (((x) + TRI_HALF ) & ~(TRI_ONE-1)) - -#define TRI_ROUDNING (1 << (16 - TRI_FRACTION_BITS - 1)) -#define TRI_FROM_FIXED(x) (((x)+TRI_ROUDNING) >> (16-TRI_FRACTION_BITS)) - -#define TRI_SNAP_NEXT_HALF(x) (TRI_CEIL((x)+TRI_HALF) - TRI_HALF) -#define TRI_SNAP_PREV_HALF(x) (TRI_CEIL((x)-TRI_HALF) - TRI_HALF) - -// ---------------------------------------------------------------------------- - -const int GGL_COLOR_BITS = 24; - -// To maintain 8-bits color chanels, with a maximum GGLSurface -// size of 4096 and GGL_SUBPIXEL_BITS=4, we need 8 + 12 + 4 = 24 bits -// for encoding the color iterators - -inline GGLcolor gglFixedToIteratedColor(GGLfixed c) { - return (c << 8) - c; -} - -// ---------------------------------------------------------------------------- - -template<bool> struct CTA; -template<> struct CTA<true> { }; - -#define GGL_CONTEXT(con, c) context_t *con = static_cast<context_t *>(c) -#define GGL_OFFSETOF(field) uintptr_t(&(((context_t*)0)->field)) -#define GGL_INIT_PROC(p, f) p.f = ggl_ ## f; -#define GGL_BETWEEN(x, L, H) (uint32_t((x)-(L)) <= ((H)-(L))) - -#define ggl_likely(x) __builtin_expect(!!(x), 1) -#define ggl_unlikely(x) __builtin_expect(!!(x), 0) - -const int GGL_TEXTURE_UNIT_COUNT = 2; -const int GGL_TMU_STATE = 0x00000001; -const int GGL_CB_STATE = 0x00000002; -const int GGL_PIXEL_PIPELINE_STATE = 0x00000004; - -// ---------------------------------------------------------------------------- - -#define GGL_RESERVE_NEEDS(name, l, s) \ - const uint32_t GGL_NEEDS_##name##_MASK = (((1LU<<(s))-1)<<l); \ - const uint32_t GGL_NEEDS_##name##_SHIFT = (l); - -#define GGL_BUILD_NEEDS(val, name) \ - (((val)<<(GGL_NEEDS_##name##_SHIFT)) & GGL_NEEDS_##name##_MASK) - -#define GGL_READ_NEEDS(name, n) \ - (uint32_t(n & GGL_NEEDS_##name##_MASK) >> GGL_NEEDS_##name##_SHIFT) - -#define GGL_NEED_MASK(name) (uint32_t(GGL_NEEDS_##name##_MASK)) -#define GGL_NEED(name, val) GGL_BUILD_NEEDS(val, name) - -GGL_RESERVE_NEEDS( CB_FORMAT, 0, 6 ) -GGL_RESERVE_NEEDS( SHADE, 6, 1 ) -GGL_RESERVE_NEEDS( W, 7, 1 ) -GGL_RESERVE_NEEDS( BLEND_SRC, 8, 4 ) -GGL_RESERVE_NEEDS( BLEND_DST, 12, 4 ) -GGL_RESERVE_NEEDS( BLEND_SRCA, 16, 4 ) -GGL_RESERVE_NEEDS( BLEND_DSTA, 20, 4 ) -GGL_RESERVE_NEEDS( LOGIC_OP, 24, 4 ) -GGL_RESERVE_NEEDS( MASK_ARGB, 28, 4 ) - -GGL_RESERVE_NEEDS( P_ALPHA_TEST, 0, 3 ) -GGL_RESERVE_NEEDS( P_AA, 3, 1 ) -GGL_RESERVE_NEEDS( P_DEPTH_TEST, 4, 3 ) -GGL_RESERVE_NEEDS( P_MASK_Z, 7, 1 ) -GGL_RESERVE_NEEDS( P_DITHER, 8, 1 ) -GGL_RESERVE_NEEDS( P_FOG, 9, 1 ) -GGL_RESERVE_NEEDS( P_RESERVED1, 10,22 ) - -GGL_RESERVE_NEEDS( T_FORMAT, 0, 6 ) -GGL_RESERVE_NEEDS( T_RESERVED0, 6, 1 ) -GGL_RESERVE_NEEDS( T_POT, 7, 1 ) -GGL_RESERVE_NEEDS( T_S_WRAP, 8, 2 ) -GGL_RESERVE_NEEDS( T_T_WRAP, 10, 2 ) -GGL_RESERVE_NEEDS( T_ENV, 12, 3 ) -GGL_RESERVE_NEEDS( T_LINEAR, 15, 1 ) - -const int GGL_NEEDS_WRAP_CLAMP_TO_EDGE = 0; -const int GGL_NEEDS_WRAP_REPEAT = 1; -const int GGL_NEEDS_WRAP_11 = 2; - -inline uint32_t ggl_wrap_to_needs(uint32_t e) { - switch (e) { - case GGL_CLAMP: return GGL_NEEDS_WRAP_CLAMP_TO_EDGE; - case GGL_REPEAT: return GGL_NEEDS_WRAP_REPEAT; - } - return 0; -} - -inline uint32_t ggl_blendfactor_to_needs(uint32_t b) { - if (b <= 1) return b; - return (b & 0xF)+2; -} - -inline uint32_t ggl_needs_to_blendfactor(uint32_t n) { - if (n <= 1) return n; - return (n - 2) + 0x300; -} - -inline uint32_t ggl_env_to_needs(uint32_t e) { - switch (e) { - case GGL_REPLACE: return 0; - case GGL_MODULATE: return 1; - case GGL_DECAL: return 2; - case GGL_BLEND: return 3; - case GGL_ADD: return 4; - } - return 0; -} - -inline uint32_t ggl_needs_to_env(uint32_t n) { - const uint32_t envs[] = { GGL_REPLACE, GGL_MODULATE, - GGL_DECAL, GGL_BLEND, GGL_ADD }; - return envs[n]; - -} - -// ---------------------------------------------------------------------------- - -enum { - GGL_ENABLE_BLENDING = 0x00000001, - GGL_ENABLE_SMOOTH = 0x00000002, - GGL_ENABLE_AA = 0x00000004, - GGL_ENABLE_LOGIC_OP = 0x00000008, - GGL_ENABLE_ALPHA_TEST = 0x00000010, - GGL_ENABLE_SCISSOR_TEST = 0x00000020, - GGL_ENABLE_TMUS = 0x00000040, - GGL_ENABLE_DEPTH_TEST = 0x00000080, - GGL_ENABLE_STENCIL_TEST = 0x00000100, - GGL_ENABLE_W = 0x00000200, - GGL_ENABLE_DITHER = 0x00000400, - GGL_ENABLE_FOG = 0x00000800, - GGL_ENABLE_POINT_AA_NICE= 0x00001000 -}; - -// ---------------------------------------------------------------------------- - -class needs_filter_t; -struct needs_t { - inline int match(const needs_filter_t& filter); - inline bool operator == (const needs_t& rhs) const { - return (n==rhs.n) && - (p==rhs.p) && - (t[0]==rhs.t[0]) && - (t[1]==rhs.t[1]); - } - inline bool operator != (const needs_t& rhs) const { - return !operator == (rhs); - } - uint32_t n; - uint32_t p; - uint32_t t[GGL_TEXTURE_UNIT_COUNT]; -}; - -inline int compare_type(const needs_t& lhs, const needs_t& rhs) { - return memcmp(&lhs, &rhs, sizeof(needs_t)); -} - -struct needs_filter_t { - needs_t value; - needs_t mask; -}; - -int needs_t::match(const needs_filter_t& filter) { - uint32_t result = - ((filter.value.n ^ n) & filter.mask.n) | - ((filter.value.p ^ p) & filter.mask.p) | - ((filter.value.t[0] ^ t[0]) & filter.mask.t[0]) | - ((filter.value.t[1] ^ t[1]) & filter.mask.t[1]); - return (result == 0); -} - -// ---------------------------------------------------------------------------- - -struct context_t; -class Assembly; - -struct blend_state_t { - uint32_t src; - uint32_t dst; - uint32_t src_alpha; - uint32_t dst_alpha; - uint8_t reserved; - uint8_t alpha_separate; - uint8_t operation; - uint8_t equation; -}; - -struct mask_state_t { - uint8_t color; - uint8_t depth; - uint32_t stencil; -}; - -struct clear_state_t { - GGLclampx r; - GGLclampx g; - GGLclampx b; - GGLclampx a; - GGLclampx depth; - GGLint stencil; - uint32_t colorPacked; - uint32_t depthPacked; - uint32_t stencilPacked; - uint32_t dirty; -}; - -struct fog_state_t { - uint8_t color[4]; -}; - -struct logic_op_state_t { - uint16_t opcode; -}; - -struct alpha_test_state_t { - uint16_t func; - GGLcolor ref; -}; - -struct depth_test_state_t { - uint16_t func; - GGLclampx clearValue; -}; - -struct scissor_t { - uint32_t user_left; - uint32_t user_right; - uint32_t user_top; - uint32_t user_bottom; - uint32_t left; - uint32_t right; - uint32_t top; - uint32_t bottom; -}; - -struct pixel_t { - uint32_t c[4]; - uint8_t s[4]; -}; - -struct surface_t { - union { - GGLSurface s; - // Keep the following struct field types in line with the corresponding - // GGLSurface fields to avoid mismatches leading to errors. - struct { - GGLsizei reserved; - GGLuint width; - GGLuint height; - GGLint stride; - GGLubyte* data; - GGLubyte format; - GGLubyte dirty; - GGLubyte pad[2]; - }; - }; - void (*read) (const surface_t* s, context_t* c, - uint32_t x, uint32_t y, pixel_t* pixel); - void (*write)(const surface_t* s, context_t* c, - uint32_t x, uint32_t y, const pixel_t* pixel); -}; - -// ---------------------------------------------------------------------------- - -struct texture_shade_t { - union { - struct { - int32_t is0; - int32_t idsdx; - int32_t idsdy; - int sscale; - int32_t it0; - int32_t idtdx; - int32_t idtdy; - int tscale; - }; - struct { - int32_t v; - int32_t dx; - int32_t dy; - int scale; - } st[2]; - }; -}; - -struct texture_iterators_t { - // these are not encoded in the same way than in the - // texture_shade_t structure - union { - struct { - GGLfixed ydsdy; - GGLfixed dsdx; - GGLfixed dsdy; - int sscale; - GGLfixed ydtdy; - GGLfixed dtdx; - GGLfixed dtdy; - int tscale; - }; - struct { - GGLfixed ydvdy; - GGLfixed dvdx; - GGLfixed dvdy; - int scale; - } st[2]; - }; -}; - -struct texture_t { - surface_t surface; - texture_iterators_t iterators; - texture_shade_t shade; - uint32_t s_coord; - uint32_t t_coord; - uint16_t s_wrap; - uint16_t t_wrap; - uint16_t min_filter; - uint16_t mag_filter; - uint16_t env; - uint8_t env_color[4]; - uint8_t enable; - uint8_t dirty; -}; - -struct raster_t { - GGLfixed x; - GGLfixed y; -}; - -struct framebuffer_t { - surface_t color; - surface_t read; - surface_t depth; - surface_t stencil; - int16_t *coverage; - size_t coverageBufferSize; -}; - -// ---------------------------------------------------------------------------- - -struct iterators_t { - int32_t xl; - int32_t xr; - int32_t y; - GGLcolor ydady; - GGLcolor ydrdy; - GGLcolor ydgdy; - GGLcolor ydbdy; - GGLfixed ydzdy; - GGLfixed ydwdy; - GGLfixed ydfdy; -}; - -struct shade_t { - GGLcolor a0; - GGLcolor dadx; - GGLcolor dady; - GGLcolor r0; - GGLcolor drdx; - GGLcolor drdy; - GGLcolor g0; - GGLcolor dgdx; - GGLcolor dgdy; - GGLcolor b0; - GGLcolor dbdx; - GGLcolor dbdy; - uint32_t z0; - GGLfixed32 dzdx; - GGLfixed32 dzdy; - GGLfixed w0; - GGLfixed dwdx; - GGLfixed dwdy; - uint32_t f0; - GGLfixed dfdx; - GGLfixed dfdy; -}; - -// these are used in the generated code -// we use this mirror structure to improve -// data locality in the pixel pipeline -struct generated_tex_vars_t { - uint32_t width; - uint32_t height; - uint32_t stride; - uintptr_t data; - int32_t dsdx; - int32_t dtdx; - int32_t spill[2]; -}; - -struct generated_vars_t { - struct { - int32_t c; - int32_t dx; - } argb[4]; - int32_t aref; - int32_t dzdx; - int32_t zbase; - int32_t f; - int32_t dfdx; - int32_t spill[3]; - generated_tex_vars_t texture[GGL_TEXTURE_UNIT_COUNT]; - int32_t rt; - int32_t lb; -}; - -// ---------------------------------------------------------------------------- - -struct state_t { - framebuffer_t buffers; - texture_t texture[GGL_TEXTURE_UNIT_COUNT]; - scissor_t scissor; - raster_t raster; - blend_state_t blend; - alpha_test_state_t alpha_test; - depth_test_state_t depth_test; - mask_state_t mask; - clear_state_t clear; - fog_state_t fog; - logic_op_state_t logic_op; - uint32_t enables; - uint32_t enabled_tmu; - needs_t needs; -}; - -// ---------------------------------------------------------------------------- - -struct context_t { - GGLContext procs; - state_t state; - shade_t shade; - iterators_t iterators; - generated_vars_t generated_vars __attribute__((aligned(32))); - uint8_t ditherMatrix[GGL_DITHER_SIZE] __attribute__((aligned(32))); - uint32_t packed; - uint32_t packed8888; - const GGLFormat* formats; - uint32_t dirty; - texture_t* activeTMU; - uint32_t activeTMUIndex; - - void (*init_y)(context_t* c, int32_t y); - void (*step_y)(context_t* c); - void (*scanline)(context_t* c); - void (*span)(context_t* c); - void (*rect)(context_t* c, size_t yc); - - void* base; - Assembly* scanline_as; - GGLenum error; -}; - -// ---------------------------------------------------------------------------- - -void ggl_init_context(context_t* context); -void ggl_uninit_context(context_t* context); -void ggl_error(context_t* c, GGLenum error); -int64_t ggl_system_time(); - -// ---------------------------------------------------------------------------- - -}; - -#endif // ANDROID_GGL_CONTEXT_H - |