/opengles/src/arm/CodeGenerator.h

http://ftk.googlecode.com/ · C Header · 273 lines · 161 code · 49 blank · 63 comment · 0 complexity · 5b82bac318058bd0bc442895036155f1 MD5 · raw file 

    

  1. #ifndef EGL_CODE_GENERATOR_H
    2. 

  2. #define EGL_CODE_GENERATOR_H 1
    3. 

  3. 

  4. // ==========================================================================
    5. 

  5. //
    6. 

  6. // CodeGenerator.h		JIT Class for 3D Rendering Library
    7. 

  7. //
    8. 

  8. //						This file contains the rasterizer functions that
    9. 

  9. //						implement the runtime code generation support
    10. 

  10. //						for optimized scan line rasterization routines.
    11. 

  11. //
    12. 

  12. // --------------------------------------------------------------------------
    13. 

  13. //
    14. 

  14. // 08-07-2003	Hans-Martin Will	initial version
    15. 

  15. //
    16. 

  16. // --------------------------------------------------------------------------
    17. 

  17. //
    18. 

  18. // Copyright (c) 2004, Hans-Martin Will. All rights reserved.
    19. 

  19. // 
    20. 

  20. // Redistribution and use in source and binary forms, with or without 
    21. 

  21. // modification, are permitted provided that the following conditions are 
    22. 

  22. // met:
    23. 

  23. // 
    24. 

  24. //	 *  Redistributions of source code must retain the above copyright
    25. 

  25. // 		notice, this list of conditions and the following disclaimer. 
    26. 

  26. //   *	Redistributions in binary form must reproduce the above copyright
    27. 

  27. // 		notice, this list of conditions and the following disclaimer in the 
    28. 

  28. // 		documentation and/or other materials provided with the distribution. 
    29. 

  29. // 
    30. 

  30. // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
    31. 

  31. // AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
    32. 

  32. // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
    33. 

  33. // ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 
    34. 

  34. // LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, 
    35. 

  35. // OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
    36. 

  36. // SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
    37. 

  37. // INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
    38. 

  38. // CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
    39. 

  39. // ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 
    40. 

  40. // THE POSSIBILITY OF SUCH DAMAGE.
    41. 

  41. //
    42. 

  42. // ==========================================================================
    43. 

  43. 

  44. 

  45. #include "OGLES.h"
    46. 

  46. #include "fixed.h"
    47. 

  47. #include "linalg.h"
    48. 

  48. #include "Rasterizer.h"
    49. 

  49. #include "RasterizerState.h"
    50. 

  50. #include "FunctionCache.h"
    51. 

  51. 

  52. 

  53. extern "C" {
    54. 

  54. #ifdef __GCC32__
    55. 

  55.     struct cg_module_t;
    56. 

  56.     struct cg_proc_t;
    57. 

  57.     struct cg_block_t;
    58. 

  58.     struct cg_block_ref_t;
    59. 

  59.     struct cg_virtual_reg_t;
    60. 

  60. #else
    61. 

  61. 	typedef struct cg_module_t cg_module_t;
    62. 

  62. 	typedef struct cg_proc_t cg_proc_t;
    63. 

  63. 	typedef struct cg_block_t cg_block_t;
    64. 

  64. 	typedef struct cg_block_ref_t cg_block_ref_t;
    65. 

  65. 	typedef struct cg_virtual_reg_t cg_virtual_reg_t;
    66. 

  66. #endif
    67. 

  67. }
    68. 

  68. 

  69. 

  70. namespace EGL {
    71. 

  71. 

  72. 	struct FragmentGenerationInfo {
    73. 

  73. 		cg_virtual_reg_t * regX;
    74. 

  74. 		cg_virtual_reg_t * regY;
    75. 

  75. 		cg_virtual_reg_t * regDepth;
    76. 

  76. 		cg_virtual_reg_t * regU[EGL_NUM_TEXTURE_UNITS];
    77. 

  77. 		cg_virtual_reg_t * regV[EGL_NUM_TEXTURE_UNITS]; 
    78. 

  78. 		cg_virtual_reg_t * regFog;
    79. 

  79. 		cg_virtual_reg_t * regR;
    80. 

  80. 		cg_virtual_reg_t * regG;
    81. 

  81. 		cg_virtual_reg_t * regB; 
    82. 

  82. 		cg_virtual_reg_t * regA;	
    83. 

  83. 

  84. 		cg_virtual_reg_t * regInfo;
    85. 

  85. 		cg_virtual_reg_t * regTexture[EGL_NUM_TEXTURE_UNITS];
    86. 

  86. 	};
    87. 

  87. 

  88. 	class FunctionCache;
    89. 

  89. 

  90. 	class MultiTexture;
    91. 

  91. 

  92. 	class CodeGenerator {
    93. 

  93. 

  94. 	public:
    95. 

  95. 		// ----------------------------------------------------------------------
    96. 

  96. 		// Code generation of triangle scan line
    97. 

  97. 		// ----------------------------------------------------------------------
    98. 

  98. 		void Compile(FunctionCache * target, FunctionCache::FunctionType type,
    99. 

  99. 			void (CodeGenerator::*function)());
    100. 

  100. 

  101. 		void SetState(const RasterizerState * state)	{ m_State = state; }
    102. 

  102. 		const RasterizerState * GetState()				{ return m_State; }
    103. 

  103. 

  104. 		void GenerateRasterScanLine();
    105. 

  105. 		void GenerateRasterLine();
    106. 

  106. 		void GenerateRasterPoint();
    107. 

  107. 		void GenerateRasterTriangle();
    108. 

  108. 

  109. 	private:
    110. 

  110. 		void GenerateFragment(cg_proc_t * procedure, cg_block_t * currentBlock,
    111. 

  111. 			cg_block_ref_t * continuation, FragmentGenerationInfo & fragmentInfo,
    112. 

  112. 			int weight, bool forceScissor = false);
    113. 

  113. 

  114. 		void GenerateFetchTexColor(cg_proc_t * proc, cg_block_t * currentBlock,
    115. 

  115. 								   size_t unit,
    116. 

  116. 								   FragmentGenerationInfo & fragmentInfo,
    117. 

  117. 								   cg_virtual_reg_t *& regTexColorR,
    118. 

  118. 								   cg_virtual_reg_t *& regTexColorG,			
    119. 

  119. 								   cg_virtual_reg_t *& regTexColorB,			
    120. 

  120. 								   cg_virtual_reg_t *& regTexColorA,
    121. 

  121. 								   cg_virtual_reg_t *& regTexColor565);
    122. 

  122. 

  123. 		void FetchTexColor(cg_proc_t * proc, cg_block_t * currentBlock,
    124. 

  124. 								   const RasterizerState::TextureState * textureState,
    125. 

  125. 								   cg_virtual_reg_t * regTexData, 
    126. 

  126. 								   cg_virtual_reg_t * regTexOffset,
    127. 

  127. 								   cg_virtual_reg_t *& regTexColorR,
    128. 

  128. 								   cg_virtual_reg_t *& regTexColorG,			
    129. 

  129. 								   cg_virtual_reg_t *& regTexColorB,			
    130. 

  130. 								   cg_virtual_reg_t *& regTexColorA,
    131. 

  131. 								   cg_virtual_reg_t *& regTexColor565);
    132. 

  132. 

  133. 		cg_virtual_reg_t * Mul255(cg_block_t * currentBlock, cg_virtual_reg_t * first, cg_virtual_reg_t * second);
    134. 

  134. 		cg_virtual_reg_t * Add(cg_block_t * currentBlock, cg_virtual_reg_t * first, cg_virtual_reg_t * second);
    135. 

  135. 		cg_virtual_reg_t * AddSigned(cg_block_t * currentBlock, cg_virtual_reg_t * first, cg_virtual_reg_t * second);
    136. 

  136. 		cg_virtual_reg_t * Sub(cg_block_t * currentBlock, cg_virtual_reg_t * first, cg_virtual_reg_t * second);
    137. 

  137. 		cg_virtual_reg_t * AddSaturate255(cg_block_t * currentBlock, cg_virtual_reg_t * first, cg_virtual_reg_t * second);
    138. 

  138. 		cg_virtual_reg_t * ClampTo255(cg_block_t * currentBlock, cg_virtual_reg_t * value);
    139. 

  139. 		cg_virtual_reg_t * ExtractBitFieldTo255(cg_block_t * currentBlock, cg_virtual_reg_t * value, size_t low, size_t high);
    140. 

  140. 		cg_virtual_reg_t * BitFieldFrom255(cg_block_t * currentBlock, cg_virtual_reg_t * value, size_t low, size_t high);
    141. 

  141. 		cg_virtual_reg_t * Dot3(cg_block_t * currentBlock, cg_virtual_reg_t * r[], cg_virtual_reg_t * g[], cg_virtual_reg_t * b[]);
    142. 

  142. 		cg_virtual_reg_t * SignedVal(cg_block_t * block, cg_virtual_reg_t * value);
    143. 

  143. 		void Color565FromRGB(cg_block_t * block, cg_virtual_reg_t * result,
    144. 

  144. 							 cg_virtual_reg_t * r, cg_virtual_reg_t * g, cg_virtual_reg_t * b);
    145. 

  145. 		cg_virtual_reg_t * Color565FromRGB(cg_block_t * block,
    146. 

  146. 							 cg_virtual_reg_t * r, cg_virtual_reg_t * g, cg_virtual_reg_t * b);
    147. 

  147. 

  148. 		cg_virtual_reg_t * Blend255(cg_block_t * currentBlock, cg_virtual_reg_t * first, cg_virtual_reg_t * second,
    149. 

  149. 								    cg_virtual_reg_t * alpha);
    150. 

  150. 		cg_virtual_reg_t * Blend255(cg_block_t * currentBlock, U8 constant, cg_virtual_reg_t * second,
    151. 

  151. 								    cg_virtual_reg_t * alpha);
    152. 

  152. 

  153. 	private:
    154. 

  154. 		const RasterizerState *	m_State;
    155. 

  155. 		struct cg_module_t *m_Module;
    156. 

  156. 	};
    157. 

  157. 

  158. }
    159. 

  159. 

  160. 

  161. 	// -------------------------------------------------------------------------
    162. 

  162. 	// Offsets of structure members within info structure
    163. 

  163. 	// -------------------------------------------------------------------------
    164. 

  164. 

  165. #	define OFFSET_SURFACE_WIDTH					offsetof(RasterInfo, SurfaceWidth)
    166. 

  166. #	define OFFSET_SURFACE_HEIGHT				offsetof(RasterInfo, SurfaceHeight)
    167. 

  167. #	define OFFSET_SURFACE_DEPTH_BUFFER			offsetof(RasterInfo, DepthBuffer)
    168. 

  168. #	define OFFSET_SURFACE_COLOR_BUFFER			offsetof(RasterInfo, ColorBuffer)
    169. 

  169. #	define OFFSET_SURFACE_STENCIL_BUFFER		offsetof(RasterInfo, StencilBuffer)
    170. 

  170. #	define OFFSET_SURFACE_ALPHA_BUFFER			offsetof(RasterInfo, AlphaBuffer)
    171. 

  171. 

  172. #	define OFFSET_TEXTURES						offsetof(RasterInfo, Textures)
    173. 

  173. #	define OFFSET_MIPMAP_LEVEL					offsetof(RasterInfo, MipmapLevel)
    174. 

  174. #	define OFFSET_MAX_MIPMAP_LEVEL				offsetof(RasterInfo, MaxMipmapLevel)
    175. 

  175. 

  176. #	define OFFSET_TEXTURE_LOG_WIDTH				offsetof(Texture, m_LogWidth)
    177. 

  177. #	define OFFSET_TEXTURE_LOG_HEIGHT			offsetof(Texture, m_LogHeight)
    178. 

  178. #	define OFFSET_TEXTURE_DATA					offsetof(Texture, m_Data)
    179. 

  179. #	define SIZE_TEXTURE							sizeof(Texture)
    180. 

  180. 

  181. 

  182. #	define OFFSET_INVERSE_TABLE_PTR				offsetof(RasterInfo, InversionTablePtr)
    183. 

  183. 

  184. 	// -------------------------------------------------------------------------
    185. 

  185. 	// For FractionalColor
    186. 

  186. 	// -------------------------------------------------------------------------
    187. 

  187. 

  188. #	define OFFSET_COLOR_RED					offsetof(FractionalColor, r)
    189. 

  189. #	define OFFSET_COLOR_GREEN				offsetof(FractionalColor, g)
    190. 

  190. #	define OFFSET_COLOR_BLUE				offsetof(FractionalColor, b)
    191. 

  191. #	define OFFSET_COLOR_ALPHA				offsetof(FractionalColor, a)
    192. 

  192. 

  193. 	// -------------------------------------------------------------------------
    194. 

  194. 	// For ScreenCoord
    195. 

  195. 	// -------------------------------------------------------------------------
    196. 

  196. 

  197. #	define OFFSET_SCREEN_X					offsetof(ScreenCoord, x)
    198. 

  198. #	define OFFSET_SCREEN_Y					offsetof(ScreenCoord, y)
    199. 

  199. #	define OFFSET_SCREEN_INV_Z				offsetof(ScreenCoord, invZ)
    200. 

  200. #	define OFFSET_SCREEN_DEPTH				offsetof(ScreenCoord, depth)
    201. 

  201. 

  202. 	// -------------------------------------------------------------------------
    203. 

  203. 	// For EdgeCoord
    204. 

  204. 	// -------------------------------------------------------------------------
    205. 

  205. 

  206. #	define OFFSET_EDGE_COORD_X				offsetof(EdgeCoord, x)
    207. 

  207. #	define OFFSET_EDGE_COORD_INV_Z			offsetof(EdgeCoord, invZ)
    208. 

  208. #	define OFFSET_EDGE_COORD_DEPTH			offsetof(EdgeCoord, depth)
    209. 

  209. 

  210. 	// -------------------------------------------------------------------------
    211. 

  211. 	// For TexCoord
    212. 

  212. 	// -------------------------------------------------------------------------
    213. 

  213. 

  214. #	define OFFSET_TEX_COORD_TU				offsetof(TexCoord, tu)
    215. 

  215. #	define OFFSET_TEX_COORD_TV				offsetof(TexCoord, tv)
    216. 

  216. #	define OFFSET_TEX_COORD_DTUDX			offsetof(TexCoord, dtudx)
    217. 

  217. #	define OFFSET_TEX_COORD_DTUDY			offsetof(TexCoord, dtudy)
    218. 

  218. #	define OFFSET_TEX_COORD_DTVDX			offsetof(TexCoord, dtvdx)
    219. 

  219. #	define OFFSET_TEX_COORD_DTVDY			offsetof(TexCoord, dtvdy)
    220. 

  220. 

  221. 	// -------------------------------------------------------------------------
    222. 

  222. 	// For EdgeBuffer
    223. 

  223. 	// -------------------------------------------------------------------------
    224. 

  224. 

  225. #	define OFFSET_EDGE_BUFFER_WINDOW		offsetof(EdgePos, m_WindowCoords)
    226. 

  226. #	define OFFSET_EDGE_BUFFER_COLOR			offsetof(EdgePos, m_Color)
    227. 

  227. #	define OFFSET_EDGE_BUFFER_TEXTURE		offsetof(EdgePos, m_TextureCoords)
    228. 

  228. #	define OFFSET_EDGE_BUFFER_FOG			offsetof(EdgePos, m_FogDensity)
    229. 

  229. 

  230. #	define OFFSET_EDGE_BUFFER_WINDOW_X		(OFFSET_EDGE_BUFFER_WINDOW + OFFSET_EDGE_COORD_X)
    231. 

  231. #	define OFFSET_EDGE_BUFFER_WINDOW_INV_Z	(OFFSET_EDGE_BUFFER_WINDOW + OFFSET_EDGE_COORD_INV_Z)
    232. 

  232. #	define OFFSET_EDGE_BUFFER_WINDOW_DEPTH	(OFFSET_EDGE_BUFFER_WINDOW + OFFSET_EDGE_COORD_DEPTH)
    233. 

  233. 

  234. #	define OFFSET_EDGE_BUFFER_COLOR_R		(OFFSET_EDGE_BUFFER_COLOR + OFFSET_COLOR_RED)
    235. 

  235. #	define OFFSET_EDGE_BUFFER_COLOR_G		(OFFSET_EDGE_BUFFER_COLOR + OFFSET_COLOR_GREEN)
    236. 

  236. #	define OFFSET_EDGE_BUFFER_COLOR_B		(OFFSET_EDGE_BUFFER_COLOR + OFFSET_COLOR_BLUE)
    237. 

  237. #	define OFFSET_EDGE_BUFFER_COLOR_A		(OFFSET_EDGE_BUFFER_COLOR + OFFSET_COLOR_ALPHA)
    238. 

  238. 

  239. #	define OFFSET_EDGE_BUFFER_TEX_TU		(OFFSET_EDGE_BUFFER_TEXTURE + OFFSET_TEX_COORD_TU)
    240. 

  240. #	define OFFSET_EDGE_BUFFER_TEX_TV		(OFFSET_EDGE_BUFFER_TEXTURE + OFFSET_TEX_COORD_TV)
    241. 

  241. #	define OFFSET_EDGE_BUFFER_TEX_DTUDX		(OFFSET_EDGE_BUFFER_TEXTURE + OFFSET_TEX_COORD_DTUDX)
    242. 

  242. #	define OFFSET_EDGE_BUFFER_TEX_DTUDY		(OFFSET_EDGE_BUFFER_TEXTURE + OFFSET_TEX_COORD_DTUDY)
    243. 

  243. #	define OFFSET_EDGE_BUFFER_TEX_DTVDX		(OFFSET_EDGE_BUFFER_TEXTURE + OFFSET_TEX_COORD_DTVDX)
    244. 

  244. #	define OFFSET_EDGE_BUFFER_TEX_DTVDY		(OFFSET_EDGE_BUFFER_TEXTURE + OFFSET_TEX_COORD_DTVDY)
    245. 

  245. 

  246. 	// -------------------------------------------------------------------------
    247. 

  247. 	// For RasterPos
    248. 

  248. 	// -------------------------------------------------------------------------
    249. 

  249. 

  250. #	define OFFSET_RASTER_POS_WINDOW			offsetof(RasterPos, m_WindowCoords)
    251. 

  251. #	define OFFSET_RASTER_POS_COLOR			offsetof(RasterPos, m_Color)
    252. 

  252. #	define OFFSET_RASTER_POS_TEXTURE		offsetof(RasterPos, m_TextureCoords)
    253. 

  253. #	define OFFSET_RASTER_POS_FOG			offsetof(RasterPos, m_FogDensity)
    254. 

  254. 

  255. #	define OFFSET_RASTER_POS_WINDOW_X		(OFFSET_RASTER_POS_WINDOW + OFFSET_SCREEN_X)
    256. 

  256. #	define OFFSET_RASTER_POS_WINDOW_Y		(OFFSET_RASTER_POS_WINDOW + OFFSET_SCREEN_Y)
    257. 

  257. #	define OFFSET_RASTER_POS_WINDOW_INV_Z	(OFFSET_RASTER_POS_WINDOW + OFFSET_SCREEN_INV_Z)
    258. 

  258. #	define OFFSET_RASTER_POS_WINDOW_DEPTH	(OFFSET_RASTER_POS_WINDOW + OFFSET_SCREEN_DEPTH)
    259. 

  259. 

  260. #	define OFFSET_RASTER_POS_COLOR_R		(OFFSET_RASTER_POS_COLOR + OFFSET_COLOR_RED)
    261. 

  261. #	define OFFSET_RASTER_POS_COLOR_G		(OFFSET_RASTER_POS_COLOR + OFFSET_COLOR_GREEN)
    262. 

  262. #	define OFFSET_RASTER_POS_COLOR_B		(OFFSET_RASTER_POS_COLOR + OFFSET_COLOR_BLUE)
    263. 

  263. #	define OFFSET_RASTER_POS_COLOR_A		(OFFSET_RASTER_POS_COLOR + OFFSET_COLOR_ALPHA)
    264. 

  264. 

  265. #	define OFFSET_RASTER_POS_TEX_TU			(OFFSET_RASTER_POS_TEXTURE + OFFSET_TEX_COORD_TU)
    266. 

  266. #	define OFFSET_RASTER_POS_TEX_TV			(OFFSET_RASTER_POS_TEXTURE + OFFSET_TEX_COORD_TV)
    267. 

  267. #	define OFFSET_RASTER_POS_TEX_DTUDX		(OFFSET_RASTER_POS_TEXTURE + OFFSET_TEX_COORD_DTUDX)
    268. 

  268. #	define OFFSET_RASTER_POS_TEX_DTUDY		(OFFSET_RASTER_POS_TEXTURE + OFFSET_TEX_COORD_DTUDY)
    269. 

  269. #	define OFFSET_RASTER_POS_TEX_DTVDX		(OFFSET_RASTER_POS_TEXTURE + OFFSET_TEX_COORD_DTVDX)
    270. 

  270. #	define OFFSET_RASTER_POS_TEX_DTVDY		(OFFSET_RASTER_POS_TEXTURE + OFFSET_TEX_COORD_DTVDY)
    271. 

  271. 

  272. 

  273. #endif //ndef EGL_CODE_GENERATOR_H
    274.