633 lines
17 KiB
C++
633 lines
17 KiB
C++
/*
|
|
* 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_OPENGLES_CONTEXT_H
|
|
#define ANDROID_OPENGLES_CONTEXT_H
|
|
|
|
#include <stdint.h>
|
|
#include <stddef.h>
|
|
#include <sys/types.h>
|
|
#include <pthread.h>
|
|
#ifdef HAVE_ANDROID_OS
|
|
#include <bionic_tls.h>
|
|
#endif
|
|
|
|
#include <private/pixelflinger/ggl_context.h>
|
|
|
|
#include <GLES/gl.h>
|
|
#include <GLES/glext.h>
|
|
|
|
namespace android {
|
|
|
|
const unsigned int OGLES_NUM_COMPRESSED_TEXTURE_FORMATS = 10;
|
|
|
|
class EGLTextureObject;
|
|
class EGLSurfaceManager;
|
|
class EGLBufferObjectManager;
|
|
|
|
namespace gl {
|
|
|
|
struct ogles_context_t;
|
|
struct matrixx_t;
|
|
struct transform_t;
|
|
struct buffer_t;
|
|
|
|
ogles_context_t* getGlContext();
|
|
|
|
template<typename T>
|
|
static inline void swap(T& a, T& b) {
|
|
T t(a); a = b; b = t;
|
|
}
|
|
template<typename T>
|
|
inline T max(T a, T b) {
|
|
return a<b ? b : a;
|
|
}
|
|
template<typename T>
|
|
inline T max(T a, T b, T c) {
|
|
return max(a, max(b, c));
|
|
}
|
|
template<typename T>
|
|
inline T min(T a, T b) {
|
|
return a<b ? a : b;
|
|
}
|
|
template<typename T>
|
|
inline T min(T a, T b, T c) {
|
|
return min(a, min(b, c));
|
|
}
|
|
template<typename T>
|
|
inline T min(T a, T b, T c, T d) {
|
|
return min(min(a,b), min(c,d));
|
|
}
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// vertices
|
|
// ----------------------------------------------------------------------------
|
|
|
|
struct vec3_t {
|
|
union {
|
|
struct { GLfixed x, y, z; };
|
|
struct { GLfixed r, g, b; };
|
|
struct { GLfixed S, T, R; };
|
|
GLfixed v[3];
|
|
};
|
|
};
|
|
|
|
struct vec4_t {
|
|
union {
|
|
struct { GLfixed x, y, z, w; };
|
|
struct { GLfixed r, g, b, a; };
|
|
struct { GLfixed S, T, R, Q; };
|
|
GLfixed v[4];
|
|
};
|
|
};
|
|
|
|
struct vertex_t {
|
|
enum {
|
|
// these constant matter for our clipping
|
|
CLIP_L = 0x0001, // clipping flags
|
|
CLIP_R = 0x0002,
|
|
CLIP_B = 0x0004,
|
|
CLIP_T = 0x0008,
|
|
CLIP_N = 0x0010,
|
|
CLIP_F = 0x0020,
|
|
|
|
EYE = 0x0040,
|
|
RESERVED = 0x0080,
|
|
|
|
USER_CLIP_0 = 0x0100, // user clipping flags
|
|
USER_CLIP_1 = 0x0200,
|
|
USER_CLIP_2 = 0x0400,
|
|
USER_CLIP_3 = 0x0800,
|
|
USER_CLIP_4 = 0x1000,
|
|
USER_CLIP_5 = 0x2000,
|
|
|
|
LIT = 0x4000, // lighting has been applied
|
|
TT = 0x8000, // texture coords transformed
|
|
|
|
FRUSTUM_CLIP_ALL= 0x003F,
|
|
USER_CLIP_ALL = 0x3F00,
|
|
CLIP_ALL = 0x3F3F,
|
|
};
|
|
|
|
// the fields below are arranged to minimize d-cache usage
|
|
// we group together, by cache-line, the fields most likely to be used
|
|
|
|
union {
|
|
vec4_t obj;
|
|
vec4_t eye;
|
|
};
|
|
vec4_t clip;
|
|
|
|
uint32_t flags;
|
|
size_t index; // cache tag, and vertex index
|
|
GLfixed fog;
|
|
uint8_t locked;
|
|
uint8_t mru;
|
|
uint8_t reserved[2];
|
|
vec4_t window;
|
|
|
|
vec4_t color;
|
|
vec4_t texture[GGL_TEXTURE_UNIT_COUNT];
|
|
uint32_t reserved1[4];
|
|
|
|
inline void clear() {
|
|
flags = index = locked = mru = 0;
|
|
}
|
|
};
|
|
|
|
struct point_size_t {
|
|
GGLcoord size;
|
|
GLboolean smooth;
|
|
};
|
|
|
|
struct line_width_t {
|
|
GGLcoord width;
|
|
GLboolean smooth;
|
|
};
|
|
|
|
struct polygon_offset_t {
|
|
GLfixed factor;
|
|
GLfixed units;
|
|
GLboolean enable;
|
|
};
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// arrays
|
|
// ----------------------------------------------------------------------------
|
|
|
|
struct array_t {
|
|
typedef void (*fetcher_t)(ogles_context_t*, GLfixed*, const GLvoid*);
|
|
fetcher_t fetch;
|
|
GLvoid const* physical_pointer;
|
|
GLint size;
|
|
GLsizei stride;
|
|
GLvoid const* pointer;
|
|
buffer_t const* bo;
|
|
uint16_t type;
|
|
GLboolean enable;
|
|
GLboolean pad;
|
|
GLsizei bounds;
|
|
void init(GLint, GLenum, GLsizei, const GLvoid *, const buffer_t*, GLsizei);
|
|
inline void resolve();
|
|
inline const GLubyte* element(GLint i) const {
|
|
return (const GLubyte*)physical_pointer + i * stride;
|
|
}
|
|
};
|
|
|
|
struct array_machine_t {
|
|
array_t vertex;
|
|
array_t normal;
|
|
array_t color;
|
|
array_t texture[GGL_TEXTURE_UNIT_COUNT];
|
|
uint8_t activeTexture;
|
|
uint8_t tmu;
|
|
uint16_t cull;
|
|
uint32_t flags;
|
|
GLenum indicesType;
|
|
buffer_t const* array_buffer;
|
|
buffer_t const* element_array_buffer;
|
|
|
|
void (*compileElements)(ogles_context_t*, vertex_t*, GLint, GLsizei);
|
|
void (*compileElement)(ogles_context_t*, vertex_t*, GLint);
|
|
|
|
void (*mvp_transform)(transform_t const*, vec4_t*, vec4_t const*);
|
|
void (*mv_transform)(transform_t const*, vec4_t*, vec4_t const*);
|
|
void (*tex_transform[2])(transform_t const*, vec4_t*, vec4_t const*);
|
|
void (*perspective)(ogles_context_t*c, vertex_t* v);
|
|
void (*clipVertex)(ogles_context_t* c, vertex_t* nv,
|
|
GGLfixed t, const vertex_t* s, const vertex_t* p);
|
|
void (*clipEye)(ogles_context_t* c, vertex_t* nv,
|
|
GGLfixed t, const vertex_t* s, const vertex_t* p);
|
|
};
|
|
|
|
struct vertex_cache_t {
|
|
enum {
|
|
// must be at least 4
|
|
// 3 vertice for triangles
|
|
// or 2 + 2 for indexed triangles w/ cache contention
|
|
VERTEX_BUFFER_SIZE = 8,
|
|
// must be a power of two and at least 3
|
|
VERTEX_CACHE_SIZE = 64, // 8 KB
|
|
|
|
INDEX_BITS = 16,
|
|
INDEX_MASK = ((1LU<<INDEX_BITS)-1),
|
|
INDEX_SEQ = 1LU<<INDEX_BITS,
|
|
};
|
|
vertex_t* vBuffer;
|
|
vertex_t* vCache;
|
|
uint32_t sequence;
|
|
void* base;
|
|
uint32_t total;
|
|
uint32_t misses;
|
|
int64_t startTime;
|
|
void init();
|
|
void uninit();
|
|
void clear();
|
|
void dump_stats(GLenum mode);
|
|
};
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// fog
|
|
// ----------------------------------------------------------------------------
|
|
|
|
struct fog_t {
|
|
GLfixed density;
|
|
GLfixed start;
|
|
GLfixed end;
|
|
GLfixed invEndMinusStart;
|
|
GLenum mode;
|
|
GLfixed (*fog)(ogles_context_t* c, GLfixed z);
|
|
};
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// user clip planes
|
|
// ----------------------------------------------------------------------------
|
|
|
|
const unsigned int OGLES_MAX_CLIP_PLANES = 6;
|
|
|
|
struct clip_plane_t {
|
|
vec4_t equation;
|
|
};
|
|
|
|
struct user_clip_planes_t {
|
|
clip_plane_t plane[OGLES_MAX_CLIP_PLANES];
|
|
uint32_t enable;
|
|
};
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// lighting
|
|
// ----------------------------------------------------------------------------
|
|
|
|
const unsigned int OGLES_MAX_LIGHTS = 8;
|
|
|
|
struct light_t {
|
|
vec4_t ambient;
|
|
vec4_t diffuse;
|
|
vec4_t specular;
|
|
vec4_t implicitAmbient;
|
|
vec4_t implicitDiffuse;
|
|
vec4_t implicitSpecular;
|
|
vec4_t position; // position in eye space
|
|
vec4_t objPosition;
|
|
vec4_t normalizedObjPosition;
|
|
vec4_t spotDir;
|
|
vec4_t normalizedSpotDir;
|
|
GLfixed spotExp;
|
|
GLfixed spotCutoff;
|
|
GLfixed spotCutoffCosine;
|
|
GLfixed attenuation[3];
|
|
GLfixed rConstAttenuation;
|
|
GLboolean enable;
|
|
};
|
|
|
|
struct material_t {
|
|
vec4_t ambient;
|
|
vec4_t diffuse;
|
|
vec4_t specular;
|
|
vec4_t emission;
|
|
GLfixed shininess;
|
|
};
|
|
|
|
struct light_model_t {
|
|
vec4_t ambient;
|
|
GLboolean twoSide;
|
|
};
|
|
|
|
struct color_material_t {
|
|
GLenum face;
|
|
GLenum mode;
|
|
GLboolean enable;
|
|
};
|
|
|
|
struct lighting_t {
|
|
light_t lights[OGLES_MAX_LIGHTS];
|
|
material_t front;
|
|
light_model_t lightModel;
|
|
color_material_t colorMaterial;
|
|
uint32_t enabledLights;
|
|
GLboolean enable;
|
|
vec4_t implicitSceneEmissionAndAmbient;
|
|
GLenum shadeModel;
|
|
typedef void (*light_fct_t)(ogles_context_t*, vertex_t*);
|
|
void (*lightVertex)(ogles_context_t* c, vertex_t* v);
|
|
void (*lightTriangle)(ogles_context_t* c,
|
|
vertex_t* v0, vertex_t* v1, vertex_t* v2);
|
|
};
|
|
|
|
struct culling_t {
|
|
GLenum cullFace;
|
|
GLenum frontFace;
|
|
GLboolean enable;
|
|
};
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// textures
|
|
// ----------------------------------------------------------------------------
|
|
|
|
struct texture_unit_t {
|
|
GLuint name;
|
|
EGLTextureObject* texture;
|
|
uint8_t dirty;
|
|
};
|
|
|
|
struct texture_state_t
|
|
{
|
|
texture_unit_t tmu[GGL_TEXTURE_UNIT_COUNT];
|
|
int active; // active tmu
|
|
EGLTextureObject* defaultTexture;
|
|
GGLContext* ggl;
|
|
uint8_t packAlignment;
|
|
uint8_t unpackAlignment;
|
|
};
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// transformation and matrices
|
|
// ----------------------------------------------------------------------------
|
|
|
|
struct matrixf_t;
|
|
|
|
struct matrixx_t {
|
|
GLfixed m[16];
|
|
void load(const matrixf_t& rhs);
|
|
};
|
|
|
|
struct matrix_stack_t;
|
|
|
|
|
|
struct matrixf_t {
|
|
void loadIdentity();
|
|
void load(const matrixf_t& rhs);
|
|
|
|
inline GLfloat* editElements() { return m; }
|
|
inline GLfloat const* elements() const { return m; }
|
|
|
|
void set(const GLfixed* rhs);
|
|
void set(const GLfloat* rhs);
|
|
|
|
static void multiply(matrixf_t& r,
|
|
const matrixf_t& lhs, const matrixf_t& rhs);
|
|
|
|
void dump(const char* what);
|
|
|
|
private:
|
|
friend struct matrix_stack_t;
|
|
GLfloat m[16];
|
|
void load(const GLfixed* rhs);
|
|
void load(const GLfloat* rhs);
|
|
void multiply(const matrixf_t& rhs);
|
|
void translate(GLfloat x, GLfloat y, GLfloat z);
|
|
void scale(GLfloat x, GLfloat y, GLfloat z);
|
|
void rotate(GLfloat a, GLfloat x, GLfloat y, GLfloat z);
|
|
};
|
|
|
|
enum {
|
|
OP_IDENTITY = 0x00,
|
|
OP_TRANSLATE = 0x01,
|
|
OP_UNIFORM_SCALE = 0x02,
|
|
OP_SCALE = 0x05,
|
|
OP_ROTATE = 0x08,
|
|
OP_SKEW = 0x10,
|
|
OP_ALL = 0x1F
|
|
};
|
|
|
|
struct transform_t {
|
|
enum {
|
|
FLAGS_2D_PROJECTION = 0x1
|
|
};
|
|
matrixx_t matrix;
|
|
uint32_t flags;
|
|
uint32_t ops;
|
|
|
|
union {
|
|
struct {
|
|
void (*point2)(transform_t const* t, vec4_t*, vec4_t const*);
|
|
void (*point3)(transform_t const* t, vec4_t*, vec4_t const*);
|
|
void (*point4)(transform_t const* t, vec4_t*, vec4_t const*);
|
|
};
|
|
void (*pointv[3])(transform_t const* t, vec4_t*, vec4_t const*);
|
|
};
|
|
|
|
void loadIdentity();
|
|
void picker();
|
|
void dump(const char* what);
|
|
};
|
|
|
|
struct mvui_transform_t : public transform_t
|
|
{
|
|
void picker();
|
|
};
|
|
|
|
struct matrix_stack_t {
|
|
enum {
|
|
DO_PICKER = 0x1,
|
|
DO_FLOAT_TO_FIXED = 0x2
|
|
};
|
|
transform_t transform;
|
|
uint8_t maxDepth;
|
|
uint8_t depth;
|
|
uint8_t dirty;
|
|
uint8_t reserved;
|
|
matrixf_t *stack;
|
|
uint8_t *ops;
|
|
void init(int depth);
|
|
void uninit();
|
|
void loadIdentity();
|
|
void load(const GLfixed* rhs);
|
|
void load(const GLfloat* rhs);
|
|
void multiply(const matrixf_t& rhs);
|
|
void translate(GLfloat x, GLfloat y, GLfloat z);
|
|
void scale(GLfloat x, GLfloat y, GLfloat z);
|
|
void rotate(GLfloat a, GLfloat x, GLfloat y, GLfloat z);
|
|
GLint push();
|
|
GLint pop();
|
|
void validate();
|
|
matrixf_t& top() { return stack[depth]; }
|
|
const matrixf_t& top() const { return stack[depth]; }
|
|
uint32_t top_ops() const { return ops[depth]; }
|
|
inline bool isRigidBody() const {
|
|
return !(ops[depth] & ~(OP_TRANSLATE|OP_UNIFORM_SCALE|OP_ROTATE));
|
|
}
|
|
};
|
|
|
|
struct vp_transform_t {
|
|
transform_t transform;
|
|
matrixf_t matrix;
|
|
GLfloat zNear;
|
|
GLfloat zFar;
|
|
void loadIdentity();
|
|
};
|
|
|
|
struct transform_state_t {
|
|
enum {
|
|
MODELVIEW = 0x01,
|
|
PROJECTION = 0x02,
|
|
VIEWPORT = 0x04,
|
|
TEXTURE = 0x08,
|
|
MVUI = 0x10,
|
|
MVIT = 0x20,
|
|
MVP = 0x40,
|
|
};
|
|
matrix_stack_t *current;
|
|
matrix_stack_t modelview;
|
|
matrix_stack_t projection;
|
|
matrix_stack_t texture[GGL_TEXTURE_UNIT_COUNT];
|
|
|
|
// modelview * projection
|
|
transform_t mvp __attribute__((aligned(32)));
|
|
// viewport transformation
|
|
vp_transform_t vpt __attribute__((aligned(32)));
|
|
// same for 4-D vertices
|
|
transform_t mvp4;
|
|
// full modelview inverse transpose
|
|
transform_t mvit4;
|
|
// upper 3x3 of mv-inverse-transpose (for normals)
|
|
mvui_transform_t mvui;
|
|
|
|
GLenum matrixMode;
|
|
GLenum rescaleNormals;
|
|
uint32_t dirty;
|
|
void invalidate();
|
|
void update_mvp();
|
|
void update_mvit();
|
|
void update_mvui();
|
|
};
|
|
|
|
struct viewport_t {
|
|
GLint x;
|
|
GLint y;
|
|
GLsizei w;
|
|
GLsizei h;
|
|
struct {
|
|
GLint x;
|
|
GLint y;
|
|
} surfaceport;
|
|
struct {
|
|
GLint x;
|
|
GLint y;
|
|
GLsizei w;
|
|
GLsizei h;
|
|
} scissor;
|
|
};
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// Lerping
|
|
// ----------------------------------------------------------------------------
|
|
|
|
struct compute_iterators_t
|
|
{
|
|
void initTriangle(
|
|
vertex_t const* v0,
|
|
vertex_t const* v1,
|
|
vertex_t const* v2);
|
|
|
|
void initLine(
|
|
vertex_t const* v0,
|
|
vertex_t const* v1);
|
|
|
|
inline void initLerp(vertex_t const* v0, uint32_t enables);
|
|
|
|
int iteratorsScale(int32_t it[3],
|
|
int32_t c0, int32_t c1, int32_t c2) const;
|
|
|
|
void iterators1616(GGLfixed it[3],
|
|
GGLfixed c0, GGLfixed c1, GGLfixed c2) const;
|
|
|
|
void iterators0032(int32_t it[3],
|
|
int32_t c0, int32_t c1, int32_t c2) const;
|
|
|
|
void iterators0032(int64_t it[3],
|
|
int32_t c0, int32_t c1, int32_t c2) const;
|
|
|
|
GGLcoord area() const { return m_area; }
|
|
|
|
private:
|
|
// don't change order of members here -- used by iterators.S
|
|
GGLcoord m_dx01, m_dy10, m_dx20, m_dy02;
|
|
GGLcoord m_x0, m_y0;
|
|
GGLcoord m_area;
|
|
uint8_t m_scale;
|
|
uint8_t m_area_scale;
|
|
uint8_t m_reserved[2];
|
|
|
|
};
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// state
|
|
// ----------------------------------------------------------------------------
|
|
|
|
#ifdef HAVE_ANDROID_OS
|
|
// We have a dedicated TLS slot in bionic
|
|
inline void setGlThreadSpecific(ogles_context_t *value) {
|
|
((uint32_t *)__get_tls())[TLS_SLOT_OPENGL] = (uint32_t)value;
|
|
}
|
|
inline ogles_context_t* getGlThreadSpecific() {
|
|
return (ogles_context_t *)(((unsigned *)__get_tls())[TLS_SLOT_OPENGL]);
|
|
}
|
|
#else
|
|
extern pthread_key_t gGLKey;
|
|
inline void setGlThreadSpecific(ogles_context_t *value) {
|
|
pthread_setspecific(gGLKey, value);
|
|
}
|
|
inline ogles_context_t* getGlThreadSpecific() {
|
|
return static_cast<ogles_context_t*>(pthread_getspecific(gGLKey));
|
|
}
|
|
#endif
|
|
|
|
|
|
struct prims_t {
|
|
typedef ogles_context_t* GL;
|
|
void (*renderPoint)(GL, vertex_t*);
|
|
void (*renderLine)(GL, vertex_t*, vertex_t*);
|
|
void (*renderTriangle)(GL, vertex_t*, vertex_t*, vertex_t*);
|
|
};
|
|
|
|
struct ogles_context_t {
|
|
context_t rasterizer;
|
|
array_machine_t arrays __attribute__((aligned(32)));
|
|
texture_state_t textures;
|
|
transform_state_t transforms;
|
|
vertex_cache_t vc;
|
|
prims_t prims;
|
|
culling_t cull;
|
|
lighting_t lighting;
|
|
user_clip_planes_t clipPlanes;
|
|
compute_iterators_t lerp; __attribute__((aligned(32)));
|
|
vertex_t current;
|
|
vec4_t currentColorClamped;
|
|
vec3_t currentNormal;
|
|
viewport_t viewport;
|
|
point_size_t point;
|
|
line_width_t line;
|
|
polygon_offset_t polygonOffset;
|
|
fog_t fog;
|
|
uint32_t perspective : 1;
|
|
uint32_t transformTextures : 1;
|
|
EGLSurfaceManager* surfaceManager;
|
|
EGLBufferObjectManager* bufferObjectManager;
|
|
GLenum error;
|
|
|
|
static inline ogles_context_t* get() {
|
|
return getGlThreadSpecific();
|
|
}
|
|
|
|
};
|
|
|
|
}; // namespace gl
|
|
}; // namespace android
|
|
|
|
#endif // ANDROID_OPENGLES_CONTEXT_H
|
|
|