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330 lines
11 KiB
330 lines
11 KiB
/* |
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* Copyright (C) 2007 The Android Open Source Project |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0 |
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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*/ |
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#ifndef ANDROID_PIXELFLINGER_H |
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#define ANDROID_PIXELFLINGER_H |
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#include <stdint.h> |
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#include <sys/types.h> |
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#include <pixelflinger/format.h> |
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// GGL types |
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typedef int8_t GGLbyte; // b |
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typedef int16_t GGLshort; // s |
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typedef int32_t GGLint; // i |
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typedef ssize_t GGLsizei; // i |
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typedef int32_t GGLfixed; // x |
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typedef int32_t GGLclampx; // x |
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typedef float GGLfloat; // f |
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typedef float GGLclampf; // f |
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typedef double GGLdouble; // d |
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typedef double GGLclampd; // d |
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typedef uint8_t GGLubyte; // ub |
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typedef uint8_t GGLboolean; // ub |
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typedef uint16_t GGLushort; // us |
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typedef uint32_t GGLuint; // ui |
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typedef unsigned int GGLenum; // ui |
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typedef unsigned int GGLbitfield; // ui |
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typedef void GGLvoid; |
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typedef int32_t GGLfixed32; |
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typedef int32_t GGLcolor; |
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typedef int32_t GGLcoord; |
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// ---------------------------------------------------------------------------- |
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#define GGL_MAX_VIEWPORT_DIMS 4096 |
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#define GGL_MAX_TEXTURE_SIZE 4096 |
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#define GGL_MAX_ALIASED_POINT_SIZE 0x7FFFFFF |
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#define GGL_MAX_SMOOTH_POINT_SIZE 2048 |
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#define GGL_MAX_SMOOTH_LINE_WIDTH 2048 |
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// ---------------------------------------------------------------------------- |
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// All these names are compatible with their OpenGL equivalents |
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// some of them are listed only for completeness |
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enum GGLNames { |
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GGL_FALSE = 0, |
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GGL_TRUE = 1, |
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// enable/disable |
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GGL_SCISSOR_TEST = 0x0C11, |
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GGL_TEXTURE_2D = 0x0DE1, |
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GGL_ALPHA_TEST = 0x0BC0, |
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GGL_BLEND = 0x0BE2, |
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GGL_COLOR_LOGIC_OP = 0x0BF2, |
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GGL_DITHER = 0x0BD0, |
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GGL_STENCIL_TEST = 0x0B90, |
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GGL_DEPTH_TEST = 0x0B71, |
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GGL_AA = 0x80000001, |
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GGL_W_LERP = 0x80000004, |
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GGL_POINT_SMOOTH_NICE = 0x80000005, |
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// buffers, pixel drawing/reading |
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GGL_COLOR = 0x1800, |
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// fog |
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GGL_FOG = 0x0B60, |
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// shade model |
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GGL_FLAT = 0x1D00, |
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GGL_SMOOTH = 0x1D01, |
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// Texture parameter name |
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GGL_TEXTURE_MIN_FILTER = 0x2801, |
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GGL_TEXTURE_MAG_FILTER = 0x2800, |
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GGL_TEXTURE_WRAP_S = 0x2802, |
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GGL_TEXTURE_WRAP_T = 0x2803, |
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GGL_TEXTURE_WRAP_R = 0x2804, |
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// Texture Filter |
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GGL_NEAREST = 0x2600, |
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GGL_LINEAR = 0x2601, |
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GGL_NEAREST_MIPMAP_NEAREST = 0x2700, |
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GGL_LINEAR_MIPMAP_NEAREST = 0x2701, |
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GGL_NEAREST_MIPMAP_LINEAR = 0x2702, |
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GGL_LINEAR_MIPMAP_LINEAR = 0x2703, |
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// Texture Wrap Mode |
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GGL_CLAMP = 0x2900, |
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GGL_REPEAT = 0x2901, |
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GGL_CLAMP_TO_EDGE = 0x812F, |
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// Texture Env Mode |
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GGL_REPLACE = 0x1E01, |
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GGL_MODULATE = 0x2100, |
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GGL_DECAL = 0x2101, |
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GGL_ADD = 0x0104, |
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// Texture Env Parameter |
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GGL_TEXTURE_ENV_MODE = 0x2200, |
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GGL_TEXTURE_ENV_COLOR = 0x2201, |
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// Texture Env Target |
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GGL_TEXTURE_ENV = 0x2300, |
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// Texture coord generation |
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GGL_TEXTURE_GEN_MODE = 0x2500, |
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GGL_S = 0x2000, |
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GGL_T = 0x2001, |
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GGL_R = 0x2002, |
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GGL_Q = 0x2003, |
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GGL_ONE_TO_ONE = 0x80000002, |
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GGL_AUTOMATIC = 0x80000003, |
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// AlphaFunction |
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GGL_NEVER = 0x0200, |
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GGL_LESS = 0x0201, |
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GGL_EQUAL = 0x0202, |
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GGL_LEQUAL = 0x0203, |
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GGL_GREATER = 0x0204, |
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GGL_NOTEQUAL = 0x0205, |
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GGL_GEQUAL = 0x0206, |
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GGL_ALWAYS = 0x0207, |
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// LogicOp |
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GGL_CLEAR = 0x1500, // 0 |
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GGL_AND = 0x1501, // s & d |
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GGL_AND_REVERSE = 0x1502, // s & ~d |
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GGL_COPY = 0x1503, // s |
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GGL_AND_INVERTED = 0x1504, // ~s & d |
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GGL_NOOP = 0x1505, // d |
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GGL_XOR = 0x1506, // s ^ d |
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GGL_OR = 0x1507, // s | d |
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GGL_NOR = 0x1508, // ~(s | d) |
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GGL_EQUIV = 0x1509, // ~(s ^ d) |
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GGL_INVERT = 0x150A, // ~d |
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GGL_OR_REVERSE = 0x150B, // s | ~d |
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GGL_COPY_INVERTED = 0x150C, // ~s |
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GGL_OR_INVERTED = 0x150D, // ~s | d |
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GGL_NAND = 0x150E, // ~(s & d) |
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GGL_SET = 0x150F, // 1 |
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// blending equation & function |
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GGL_ZERO = 0, // SD |
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GGL_ONE = 1, // SD |
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GGL_SRC_COLOR = 0x0300, // D |
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GGL_ONE_MINUS_SRC_COLOR = 0x0301, // D |
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GGL_SRC_ALPHA = 0x0302, // SD |
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GGL_ONE_MINUS_SRC_ALPHA = 0x0303, // SD |
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GGL_DST_ALPHA = 0x0304, // SD |
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GGL_ONE_MINUS_DST_ALPHA = 0x0305, // SD |
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GGL_DST_COLOR = 0x0306, // S |
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GGL_ONE_MINUS_DST_COLOR = 0x0307, // S |
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GGL_SRC_ALPHA_SATURATE = 0x0308, // S |
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// clear bits |
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GGL_DEPTH_BUFFER_BIT = 0x00000100, |
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GGL_STENCIL_BUFFER_BIT = 0x00000400, |
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GGL_COLOR_BUFFER_BIT = 0x00004000, |
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// errors |
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GGL_NO_ERROR = 0, |
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GGL_INVALID_ENUM = 0x0500, |
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GGL_INVALID_VALUE = 0x0501, |
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GGL_INVALID_OPERATION = 0x0502, |
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GGL_STACK_OVERFLOW = 0x0503, |
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GGL_STACK_UNDERFLOW = 0x0504, |
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GGL_OUT_OF_MEMORY = 0x0505 |
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}; |
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// ---------------------------------------------------------------------------- |
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typedef struct { |
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GGLsizei version; // always set to sizeof(GGLSurface) |
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GGLuint width; // width in pixels |
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GGLuint height; // height in pixels |
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GGLint stride; // stride in pixels |
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GGLubyte* data; // pointer to the bits |
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GGLubyte format; // pixel format |
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GGLubyte rfu[3]; // must be zero |
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// these values are dependent on the used format |
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union { |
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GGLint compressedFormat; |
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GGLint vstride; |
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}; |
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void* reserved; |
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} GGLSurface; |
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typedef struct { |
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// immediate rendering |
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void (*pointx)(void *con, const GGLcoord* v, GGLcoord r); |
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void (*linex)(void *con, |
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const GGLcoord* v0, const GGLcoord* v1, GGLcoord width); |
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void (*recti)(void* c, GGLint l, GGLint t, GGLint r, GGLint b); |
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void (*trianglex)(void* c, |
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GGLcoord const* v0, GGLcoord const* v1, GGLcoord const* v2); |
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// scissor |
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void (*scissor)(void* c, GGLint x, GGLint y, GGLsizei width, GGLsizei height); |
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// Set the textures and color buffers |
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void (*activeTexture)(void* c, GGLuint tmu); |
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void (*bindTexture)(void* c, const GGLSurface* surface); |
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void (*colorBuffer)(void* c, const GGLSurface* surface); |
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void (*readBuffer)(void* c, const GGLSurface* surface); |
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void (*depthBuffer)(void* c, const GGLSurface* surface); |
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void (*bindTextureLod)(void* c, GGLuint tmu, const GGLSurface* surface); |
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// enable/disable features |
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void (*enable)(void* c, GGLenum name); |
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void (*disable)(void* c, GGLenum name); |
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void (*enableDisable)(void* c, GGLenum name, GGLboolean en); |
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// specify the fragment's color |
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void (*shadeModel)(void* c, GGLenum mode); |
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void (*color4xv)(void* c, const GGLclampx* color); |
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// specify color iterators (16.16) |
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void (*colorGrad12xv)(void* c, const GGLcolor* grad); |
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// specify Z coordinate iterators (0.32) |
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void (*zGrad3xv)(void* c, const GGLfixed32* grad); |
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// specify W coordinate iterators (16.16) |
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void (*wGrad3xv)(void* c, const GGLfixed* grad); |
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// specify fog iterator & color (16.16) |
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void (*fogGrad3xv)(void* c, const GGLfixed* grad); |
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void (*fogColor3xv)(void* c, const GGLclampx* color); |
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// specify blending parameters |
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void (*blendFunc)(void* c, GGLenum src, GGLenum dst); |
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void (*blendFuncSeparate)(void* c, GGLenum src, GGLenum dst, |
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GGLenum srcAlpha, GGLenum dstAplha); |
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// texture environnement (REPLACE / MODULATE / DECAL / BLEND) |
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void (*texEnvi)(void* c, GGLenum target, |
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GGLenum pname, |
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GGLint param); |
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void (*texEnvxv)(void* c, GGLenum target, |
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GGLenum pname, const GGLfixed* params); |
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// texture parameters (Wrapping, filter) |
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void (*texParameteri)(void* c, GGLenum target, |
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GGLenum pname, |
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GGLint param); |
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// texture iterators (16.16) |
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void (*texCoord2i)(void* c, GGLint s, GGLint t); |
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void (*texCoord2x)(void* c, GGLfixed s, GGLfixed t); |
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// s, dsdx, dsdy, scale, t, dtdx, dtdy, tscale |
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// This api uses block floating-point for S and T texture coordinates. |
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// All values are given in 16.16, scaled by 'scale'. In other words, |
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// set scale to 0, for 16.16 values. |
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void (*texCoordGradScale8xv)(void* c, GGLint tmu, const int32_t* grad8); |
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void (*texGeni)(void* c, GGLenum coord, GGLenum pname, GGLint param); |
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// masking |
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void (*colorMask)(void* c, GGLboolean red, |
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GGLboolean green, |
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GGLboolean blue, |
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GGLboolean alpha); |
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void (*depthMask)(void* c, GGLboolean flag); |
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void (*stencilMask)(void* c, GGLuint mask); |
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// alpha func |
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void (*alphaFuncx)(void* c, GGLenum func, GGLclampx ref); |
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// depth func |
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void (*depthFunc)(void* c, GGLenum func); |
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// logic op |
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void (*logicOp)(void* c, GGLenum opcode); |
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// clear |
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void (*clear)(void* c, GGLbitfield mask); |
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void (*clearColorx)(void* c, |
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GGLclampx r, GGLclampx g, GGLclampx b, GGLclampx a); |
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void (*clearDepthx)(void* c, GGLclampx depth); |
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void (*clearStencil)(void* c, GGLint s); |
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// framebuffer operations |
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void (*copyPixels)(void* c, GGLint x, GGLint y, |
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GGLsizei width, GGLsizei height, GGLenum type); |
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void (*rasterPos2x)(void* c, GGLfixed x, GGLfixed y); |
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void (*rasterPos2i)(void* c, GGLint x, GGLint y); |
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} GGLContext; |
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// ---------------------------------------------------------------------------- |
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#ifdef __cplusplus |
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extern "C" { |
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#endif |
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// construct / destroy the context |
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ssize_t gglInit(GGLContext** context); |
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ssize_t gglUninit(GGLContext* context); |
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GGLint gglBitBlit( |
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GGLContext* c, |
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int tmu, |
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GGLint crop[4], |
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GGLint where[4]); |
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#ifdef __cplusplus |
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}; |
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#endif |
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// ---------------------------------------------------------------------------- |
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#endif // ANDROID_PIXELFLINGER_H
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