/* * Copyright (C) 2007 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_PIXELFLINGER_H #define ANDROID_PIXELFLINGER_H #include #include #include // GGL types typedef int8_t GGLbyte; // b typedef int16_t GGLshort; // s typedef int32_t GGLint; // i typedef ssize_t GGLsizei; // i typedef int32_t GGLfixed; // x typedef int32_t GGLclampx; // x typedef float GGLfloat; // f typedef float GGLclampf; // f typedef double GGLdouble; // d typedef double GGLclampd; // d typedef uint8_t GGLubyte; // ub typedef uint8_t GGLboolean; // ub typedef uint16_t GGLushort; // us typedef uint32_t GGLuint; // ui typedef unsigned int GGLenum; // ui typedef unsigned int GGLbitfield; // ui typedef void GGLvoid; typedef int32_t GGLfixed32; typedef int32_t GGLcolor; typedef int32_t GGLcoord; // ---------------------------------------------------------------------------- #define GGL_MAX_VIEWPORT_DIMS 4096 #define GGL_MAX_TEXTURE_SIZE 4096 #define GGL_MAX_ALIASED_POINT_SIZE 0x7FFFFFF #define GGL_MAX_SMOOTH_POINT_SIZE 2048 #define GGL_MAX_SMOOTH_LINE_WIDTH 2048 // ---------------------------------------------------------------------------- // All these names are compatible with their OpenGL equivalents // some of them are listed only for completeness enum GGLNames { GGL_FALSE = 0, GGL_TRUE = 1, // enable/disable GGL_SCISSOR_TEST = 0x0C11, GGL_TEXTURE_2D = 0x0DE1, GGL_ALPHA_TEST = 0x0BC0, GGL_BLEND = 0x0BE2, GGL_COLOR_LOGIC_OP = 0x0BF2, GGL_DITHER = 0x0BD0, GGL_STENCIL_TEST = 0x0B90, GGL_DEPTH_TEST = 0x0B71, GGL_AA = 0x80000001, GGL_W_LERP = 0x80000004, GGL_POINT_SMOOTH_NICE = 0x80000005, // buffers, pixel drawing/reading GGL_COLOR = 0x1800, // fog GGL_FOG = 0x0B60, // shade model GGL_FLAT = 0x1D00, GGL_SMOOTH = 0x1D01, // Texture parameter name GGL_TEXTURE_MIN_FILTER = 0x2801, GGL_TEXTURE_MAG_FILTER = 0x2800, GGL_TEXTURE_WRAP_S = 0x2802, GGL_TEXTURE_WRAP_T = 0x2803, GGL_TEXTURE_WRAP_R = 0x2804, // Texture Filter GGL_NEAREST = 0x2600, GGL_LINEAR = 0x2601, GGL_NEAREST_MIPMAP_NEAREST = 0x2700, GGL_LINEAR_MIPMAP_NEAREST = 0x2701, GGL_NEAREST_MIPMAP_LINEAR = 0x2702, GGL_LINEAR_MIPMAP_LINEAR = 0x2703, // Texture Wrap Mode GGL_CLAMP = 0x2900, GGL_REPEAT = 0x2901, GGL_CLAMP_TO_EDGE = 0x812F, // Texture Env Mode GGL_REPLACE = 0x1E01, GGL_MODULATE = 0x2100, GGL_DECAL = 0x2101, GGL_ADD = 0x0104, // Texture Env Parameter GGL_TEXTURE_ENV_MODE = 0x2200, GGL_TEXTURE_ENV_COLOR = 0x2201, // Texture Env Target GGL_TEXTURE_ENV = 0x2300, // Texture coord generation GGL_TEXTURE_GEN_MODE = 0x2500, GGL_S = 0x2000, GGL_T = 0x2001, GGL_R = 0x2002, GGL_Q = 0x2003, GGL_ONE_TO_ONE = 0x80000002, GGL_AUTOMATIC = 0x80000003, // AlphaFunction GGL_NEVER = 0x0200, GGL_LESS = 0x0201, GGL_EQUAL = 0x0202, GGL_LEQUAL = 0x0203, GGL_GREATER = 0x0204, GGL_NOTEQUAL = 0x0205, GGL_GEQUAL = 0x0206, GGL_ALWAYS = 0x0207, // LogicOp GGL_CLEAR = 0x1500, // 0 GGL_AND = 0x1501, // s & d GGL_AND_REVERSE = 0x1502, // s & ~d GGL_COPY = 0x1503, // s GGL_AND_INVERTED = 0x1504, // ~s & d GGL_NOOP = 0x1505, // d GGL_XOR = 0x1506, // s ^ d GGL_OR = 0x1507, // s | d GGL_NOR = 0x1508, // ~(s | d) GGL_EQUIV = 0x1509, // ~(s ^ d) GGL_INVERT = 0x150A, // ~d GGL_OR_REVERSE = 0x150B, // s | ~d GGL_COPY_INVERTED = 0x150C, // ~s GGL_OR_INVERTED = 0x150D, // ~s | d GGL_NAND = 0x150E, // ~(s & d) GGL_SET = 0x150F, // 1 // blending equation & function GGL_ZERO = 0, // SD GGL_ONE = 1, // SD GGL_SRC_COLOR = 0x0300, // D GGL_ONE_MINUS_SRC_COLOR = 0x0301, // D GGL_SRC_ALPHA = 0x0302, // SD GGL_ONE_MINUS_SRC_ALPHA = 0x0303, // SD GGL_DST_ALPHA = 0x0304, // SD GGL_ONE_MINUS_DST_ALPHA = 0x0305, // SD GGL_DST_COLOR = 0x0306, // S GGL_ONE_MINUS_DST_COLOR = 0x0307, // S GGL_SRC_ALPHA_SATURATE = 0x0308, // S // clear bits GGL_DEPTH_BUFFER_BIT = 0x00000100, GGL_STENCIL_BUFFER_BIT = 0x00000400, GGL_COLOR_BUFFER_BIT = 0x00004000, // errors GGL_NO_ERROR = 0, GGL_INVALID_ENUM = 0x0500, GGL_INVALID_VALUE = 0x0501, GGL_INVALID_OPERATION = 0x0502, GGL_STACK_OVERFLOW = 0x0503, GGL_STACK_UNDERFLOW = 0x0504, GGL_OUT_OF_MEMORY = 0x0505 }; // ---------------------------------------------------------------------------- typedef struct { GGLsizei version; // always set to sizeof(GGLSurface) GGLuint width; // width in pixels GGLuint height; // height in pixels GGLint stride; // stride in pixels GGLubyte* data; // pointer to the bits GGLubyte format; // pixel format GGLubyte rfu[3]; // must be zero // these values are dependent on the used format union { GGLint compressedFormat; GGLint vstride; }; void* reserved; } GGLSurface; typedef struct { // immediate rendering void (*pointx)(void *con, const GGLcoord* v, GGLcoord r); void (*linex)(void *con, const GGLcoord* v0, const GGLcoord* v1, GGLcoord width); void (*recti)(void* c, GGLint l, GGLint t, GGLint r, GGLint b); void (*trianglex)(void* c, GGLcoord const* v0, GGLcoord const* v1, GGLcoord const* v2); // scissor void (*scissor)(void* c, GGLint x, GGLint y, GGLsizei width, GGLsizei height); // Set the textures and color buffers void (*activeTexture)(void* c, GGLuint tmu); void (*bindTexture)(void* c, const GGLSurface* surface); void (*colorBuffer)(void* c, const GGLSurface* surface); void (*readBuffer)(void* c, const GGLSurface* surface); void (*depthBuffer)(void* c, const GGLSurface* surface); void (*bindTextureLod)(void* c, GGLuint tmu, const GGLSurface* surface); // enable/disable features void (*enable)(void* c, GGLenum name); void (*disable)(void* c, GGLenum name); void (*enableDisable)(void* c, GGLenum name, GGLboolean en); // specify the fragment's color void (*shadeModel)(void* c, GGLenum mode); void (*color4xv)(void* c, const GGLclampx* color); // specify color iterators (16.16) void (*colorGrad12xv)(void* c, const GGLcolor* grad); // specify Z coordinate iterators (0.32) void (*zGrad3xv)(void* c, const GGLfixed32* grad); // specify W coordinate iterators (16.16) void (*wGrad3xv)(void* c, const GGLfixed* grad); // specify fog iterator & color (16.16) void (*fogGrad3xv)(void* c, const GGLfixed* grad); void (*fogColor3xv)(void* c, const GGLclampx* color); // specify blending parameters void (*blendFunc)(void* c, GGLenum src, GGLenum dst); void (*blendFuncSeparate)(void* c, GGLenum src, GGLenum dst, GGLenum srcAlpha, GGLenum dstAplha); // texture environnement (REPLACE / MODULATE / DECAL / BLEND) void (*texEnvi)(void* c, GGLenum target, GGLenum pname, GGLint param); void (*texEnvxv)(void* c, GGLenum target, GGLenum pname, const GGLfixed* params); // texture parameters (Wrapping, filter) void (*texParameteri)(void* c, GGLenum target, GGLenum pname, GGLint param); // texture iterators (16.16) void (*texCoord2i)(void* c, GGLint s, GGLint t); void (*texCoord2x)(void* c, GGLfixed s, GGLfixed t); // s, dsdx, dsdy, scale, t, dtdx, dtdy, tscale // This api uses block floating-point for S and T texture coordinates. // All values are given in 16.16, scaled by 'scale'. In other words, // set scale to 0, for 16.16 values. void (*texCoordGradScale8xv)(void* c, GGLint tmu, const int32_t* grad8); void (*texGeni)(void* c, GGLenum coord, GGLenum pname, GGLint param); // masking void (*colorMask)(void* c, GGLboolean red, GGLboolean green, GGLboolean blue, GGLboolean alpha); void (*depthMask)(void* c, GGLboolean flag); void (*stencilMask)(void* c, GGLuint mask); // alpha func void (*alphaFuncx)(void* c, GGLenum func, GGLclampx ref); // depth func void (*depthFunc)(void* c, GGLenum func); // logic op void (*logicOp)(void* c, GGLenum opcode); // clear void (*clear)(void* c, GGLbitfield mask); void (*clearColorx)(void* c, GGLclampx r, GGLclampx g, GGLclampx b, GGLclampx a); void (*clearDepthx)(void* c, GGLclampx depth); void (*clearStencil)(void* c, GGLint s); // framebuffer operations void (*copyPixels)(void* c, GGLint x, GGLint y, GGLsizei width, GGLsizei height, GGLenum type); void (*rasterPos2x)(void* c, GGLfixed x, GGLfixed y); void (*rasterPos2i)(void* c, GGLint x, GGLint y); } GGLContext; // ---------------------------------------------------------------------------- #ifdef __cplusplus extern "C" { #endif // construct / destroy the context ssize_t gglInit(GGLContext** context); ssize_t gglUninit(GGLContext* context); GGLint gglBitBlti( GGLContext* c, int tmu, GGLint crop[4], GGLint where[4]); #ifdef __cplusplus }; #endif // ---------------------------------------------------------------------------- #endif // ANDROID_PIXELFLINGER_H