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      1 // Copyright 2016 The SwiftShader Authors. All Rights Reserved.
      2 //
      3 // Licensed under the Apache License, Version 2.0 (the "License");
      4 // you may not use this file except in compliance with the License.
      5 // You may obtain a copy of the License at
      6 //
      7 //    http://www.apache.org/licenses/LICENSE-2.0
      8 //
      9 // Unless required by applicable law or agreed to in writing, software
     10 // distributed under the License is distributed on an "AS IS" BASIS,
     11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     12 // See the License for the specific language governing permissions and
     13 // limitations under the License.
     14 
     15 #ifndef libGLES_CM_hpp
     16 #define libGLES_CM_hpp
     17 
     18 #include <GLES/gl.h>
     19 #include <GLES/glext.h>
     20 #include <EGL/egl.h>
     21 
     22 #include "Common/SharedLibrary.hpp"
     23 
     24 namespace sw
     25 {
     26 class FrameBuffer;
     27 enum Format : unsigned char;
     28 }
     29 
     30 namespace egl
     31 {
     32 class Context;
     33 class Image;
     34 class Config;
     35 }
     36 
     37 class LibGLES_CMexports
     38 {
     39 public:
     40 	LibGLES_CMexports();
     41 
     42 	void (*glActiveTexture)(GLenum texture);
     43 	void (*glAlphaFunc)(GLenum func, GLclampf ref);
     44 	void (*glAlphaFuncx)(GLenum func, GLclampx ref);
     45 	void (*glBindBuffer)(GLenum target, GLuint buffer);
     46 	void (*glBindFramebuffer)(GLenum target, GLuint framebuffer);
     47 	void (*glBindFramebufferOES)(GLenum target, GLuint framebuffer);
     48 	void (*glBindRenderbufferOES)(GLenum target, GLuint renderbuffer);
     49 	void (*glBindTexture)(GLenum target, GLuint texture);
     50 	void (*glBlendEquationOES)(GLenum mode);
     51 	void (*glBlendEquationSeparateOES)(GLenum modeRGB, GLenum modeAlpha);
     52 	void (*glBlendFunc)(GLenum sfactor, GLenum dfactor);
     53 	void (*glBlendFuncSeparateOES)(GLenum srcRGB, GLenum dstRGB, GLenum srcAlpha, GLenum dstAlpha);
     54 	void (*glBufferData)(GLenum target, GLsizeiptr size, const GLvoid* data, GLenum usage);
     55 	void (*glBufferSubData)(GLenum target, GLintptr offset, GLsizeiptr size, const GLvoid* data);
     56 	GLenum (*glCheckFramebufferStatusOES)(GLenum target);
     57 	void (*glClear)(GLbitfield mask);
     58 	void (*glClearColor)(GLclampf red, GLclampf green, GLclampf blue, GLclampf alpha);
     59 	void (*glClearColorx)(GLclampx red, GLclampx green, GLclampx blue, GLclampx alpha);
     60 	void (*glClearDepthf)(GLclampf depth);
     61 	void (*glClearDepthx)(GLclampx depth);
     62 	void (*glClearStencil)(GLint s);
     63 	void (*glClientActiveTexture)(GLenum texture);
     64 	void (*glClipPlanef)(GLenum plane, const GLfloat *equation);
     65 	void (*glClipPlanex)(GLenum plane, const GLfixed *equation);
     66 	void (*glColor4f)(GLfloat red, GLfloat green, GLfloat blue, GLfloat alpha);
     67 	void (*glColor4ub)(GLubyte red, GLubyte green, GLubyte blue, GLubyte alpha);
     68 	void (*glColor4x)(GLfixed red, GLfixed green, GLfixed blue, GLfixed alpha);
     69 	void (*glColorMask)(GLboolean red, GLboolean green, GLboolean blue, GLboolean alpha);
     70 	void (*glColorPointer)(GLint size, GLenum type, GLsizei stride, const GLvoid *pointer);
     71 	void (*glCompressedTexImage2D)(GLenum target, GLint level, GLenum internalformat, GLsizei width, GLsizei height,
     72 	                               GLint border, GLsizei imageSize, const GLvoid* data);
     73 	void (*glCompressedTexSubImage2D)(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height,
     74 	                                  GLenum format, GLsizei imageSize, const GLvoid* data);
     75 	void (*glCopyTexImage2D)(GLenum target, GLint level, GLenum internalformat, GLint x, GLint y, GLsizei width, GLsizei height, GLint border);
     76 	void (*glCopyTexSubImage2D)(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint x, GLint y, GLsizei width, GLsizei height);
     77 	void (*glCullFace)(GLenum mode);
     78 	void (*glDeleteBuffers)(GLsizei n, const GLuint* buffers);
     79 	void (*glDeleteFramebuffersOES)(GLsizei n, const GLuint* framebuffers);
     80 	void (*glDeleteRenderbuffersOES)(GLsizei n, const GLuint* renderbuffers);
     81 	void (*glDeleteTextures)(GLsizei n, const GLuint* textures);
     82 	void (*glDepthFunc)(GLenum func);
     83 	void (*glDepthMask)(GLboolean flag);
     84 	void (*glDepthRangex)(GLclampx zNear, GLclampx zFar);
     85 	void (*glDepthRangef)(GLclampf zNear, GLclampf zFar);
     86 	void (*glDisable)(GLenum cap);
     87 	void (*glDisableClientState)(GLenum array);
     88 	void (*glDrawArrays)(GLenum mode, GLint first, GLsizei count);
     89 	void (*glDrawElements)(GLenum mode, GLsizei count, GLenum type, const GLvoid* indices);
     90 	void (*glEnable)(GLenum cap);
     91 	void (*glEnableClientState)(GLenum array);
     92 	void (*glFinish)(void);
     93 	void (*glFlush)(void);
     94 	void (*glFramebufferRenderbufferOES)(GLenum target, GLenum attachment, GLenum renderbuffertarget, GLuint renderbuffer);
     95 	void (*glFramebufferTexture2DOES)(GLenum target, GLenum attachment, GLenum textarget, GLuint texture, GLint level);
     96 	void (*glFogf)(GLenum pname, GLfloat param);
     97 	void (*glFogfv)(GLenum pname, const GLfloat *params);
     98 	void (*glFogx)(GLenum pname, GLfixed param);
     99 	void (*glFogxv)(GLenum pname, const GLfixed *params);
    100 	void (*glFrontFace)(GLenum mode);
    101 	void (*glFrustumf)(GLfloat left, GLfloat right, GLfloat bottom, GLfloat top, GLfloat zNear, GLfloat zFar);
    102 	void (*glFrustumx)(GLfixed left, GLfixed right, GLfixed bottom, GLfixed top, GLfixed zNear, GLfixed zFar);
    103 	void (*glGenerateMipmapOES)(GLenum target);
    104 	void (*glGenBuffers)(GLsizei n, GLuint* buffers);
    105 	void (*glGenFramebuffersOES)(GLsizei n, GLuint* framebuffers);
    106 	void (*glGenRenderbuffersOES)(GLsizei n, GLuint* renderbuffers);
    107 	void (*glGenTextures)(GLsizei n, GLuint* textures);
    108 	void (*glGetRenderbufferParameterivOES)(GLenum target, GLenum pname, GLint* params);
    109 	void (*glGetBooleanv)(GLenum pname, GLboolean* params);
    110 	void (*glGetBufferParameteriv)(GLenum target, GLenum pname, GLint* params);
    111 	void (*glGetClipPlanef)(GLenum pname, GLfloat eqn[4]);
    112 	void (*glGetClipPlanex)(GLenum pname, GLfixed eqn[4]);
    113 	GLenum (*glGetError)(void);
    114 	void (*glGetFixedv)(GLenum pname, GLfixed *params);
    115 	void (*glGetFloatv)(GLenum pname, GLfloat* params);
    116 	void (*glGetFramebufferAttachmentParameterivOES)(GLenum target, GLenum attachment, GLenum pname, GLint* params);
    117 	void (*glGetIntegerv)(GLenum pname, GLint* params);
    118 	void (*glGetLightfv)(GLenum light, GLenum pname, GLfloat *params);
    119 	void (*glGetLightxv)(GLenum light, GLenum pname, GLfixed *params);
    120 	void (*glGetMaterialfv)(GLenum face, GLenum pname, GLfloat *params);
    121 	void (*glGetMaterialxv)(GLenum face, GLenum pname, GLfixed *params);
    122 	void (*glGetPointerv)(GLenum pname, GLvoid **params);
    123 	const GLubyte* (*glGetString)(GLenum name);
    124 	void (*glGetTexParameterfv)(GLenum target, GLenum pname, GLfloat* params);
    125 	void (*glGetTexParameteriv)(GLenum target, GLenum pname, GLint* params);
    126 	void (*glGetTexEnvfv)(GLenum env, GLenum pname, GLfloat *params);
    127 	void (*glGetTexEnviv)(GLenum env, GLenum pname, GLint *params);
    128 	void (*glGetTexEnvxv)(GLenum env, GLenum pname, GLfixed *params);
    129 	void (*glGetTexParameterxv)(GLenum target, GLenum pname, GLfixed *params);
    130 	void (*glHint)(GLenum target, GLenum mode);
    131 	GLboolean (*glIsBuffer)(GLuint buffer);
    132 	GLboolean (*glIsEnabled)(GLenum cap);
    133 	GLboolean (*glIsFramebufferOES)(GLuint framebuffer);
    134 	GLboolean (*glIsTexture)(GLuint texture);
    135 	GLboolean (*glIsRenderbufferOES)(GLuint renderbuffer);
    136 	void (*glLightModelf)(GLenum pname, GLfloat param);
    137 	void (*glLightModelfv)(GLenum pname, const GLfloat *params);
    138 	void (*glLightModelx)(GLenum pname, GLfixed param);
    139 	void (*glLightModelxv)(GLenum pname, const GLfixed *params);
    140 	void (*glLightf)(GLenum light, GLenum pname, GLfloat param);
    141 	void (*glLightfv)(GLenum light, GLenum pname, const GLfloat *params);
    142 	void (*glLightx)(GLenum light, GLenum pname, GLfixed param);
    143 	void (*glLightxv)(GLenum light, GLenum pname, const GLfixed *params);
    144 	void (*glLineWidth)(GLfloat width);
    145 	void (*glLineWidthx)(GLfixed width);
    146 	void (*glLoadIdentity)(void);
    147 	void (*glLoadMatrixf)(const GLfloat *m);
    148 	void (*glLoadMatrixx)(const GLfixed *m);
    149 	void (*glLogicOp)(GLenum opcode);
    150 	void (*glMaterialf)(GLenum face, GLenum pname, GLfloat param);
    151 	void (*glMaterialfv)(GLenum face, GLenum pname, const GLfloat *params);
    152 	void (*glMaterialx)(GLenum face, GLenum pname, GLfixed param);
    153 	void (*glMaterialxv)(GLenum face, GLenum pname, const GLfixed *params);
    154 	void (*glMatrixMode)(GLenum mode);
    155 	void (*glMultMatrixf)(const GLfloat *m);
    156 	void (*glMultMatrixx)(const GLfixed *m);
    157 	void (*glMultiTexCoord4f)(GLenum target, GLfloat s, GLfloat t, GLfloat r, GLfloat q);
    158 	void (*glMultiTexCoord4x)(GLenum target, GLfixed s, GLfixed t, GLfixed r, GLfixed q);
    159 	void (*glNormal3f)(GLfloat nx, GLfloat ny, GLfloat nz);
    160 	void (*glNormal3x)(GLfixed nx, GLfixed ny, GLfixed nz);
    161 	void (*glNormalPointer)(GLenum type, GLsizei stride, const GLvoid *pointer);
    162 	void (*glOrthof)(GLfloat left, GLfloat right, GLfloat bottom, GLfloat top, GLfloat zNear, GLfloat zFar);
    163 	void (*glOrthox)(GLfixed left, GLfixed right, GLfixed bottom, GLfixed top, GLfixed zNear, GLfixed zFar);
    164 	void (*glPixelStorei)(GLenum pname, GLint param);
    165 	void (*glPointParameterf)(GLenum pname, GLfloat param);
    166 	void (*glPointParameterfv)(GLenum pname, const GLfloat *params);
    167 	void (*glPointParameterx)(GLenum pname, GLfixed param);
    168 	void (*glPointParameterxv)(GLenum pname, const GLfixed *params);
    169 	void (*glPointSize)(GLfloat size);
    170 	void (*glPointSizePointerOES)(GLenum type, GLsizei stride, const GLvoid *pointer);
    171 	void (*glPointSizex)(GLfixed size);
    172 	void (*glPolygonOffset)(GLfloat factor, GLfloat units);
    173 	void (*glPolygonOffsetx)(GLfixed factor, GLfixed units);
    174 	void (*glPopMatrix)(void);
    175 	void (*glPushMatrix)(void);
    176 	void (*glReadPixels)(GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type, GLvoid* pixels);
    177 	void (*glRenderbufferStorageOES)(GLenum target, GLenum internalformat, GLsizei width, GLsizei height);
    178 	void (*glRotatef)(GLfloat angle, GLfloat x, GLfloat y, GLfloat z);
    179 	void (*glRotatex)(GLfixed angle, GLfixed x, GLfixed y, GLfixed z);
    180 	void (*glSampleCoverage)(GLclampf value, GLboolean invert);
    181 	void (*glSampleCoveragex)(GLclampx value, GLboolean invert);
    182 	void (*glScalef)(GLfloat x, GLfloat y, GLfloat z);
    183 	void (*glScalex)(GLfixed x, GLfixed y, GLfixed z);
    184 	void (*glScissor)(GLint x, GLint y, GLsizei width, GLsizei height);
    185 	void (*glShadeModel)(GLenum mode);
    186 	void (*glStencilFunc)(GLenum func, GLint ref, GLuint mask);
    187 	void (*glStencilMask)(GLuint mask);
    188 	void (*glStencilOp)(GLenum fail, GLenum zfail, GLenum zpass);
    189 	void (*glTexCoordPointer)(GLint size, GLenum type, GLsizei stride, const GLvoid *pointer);
    190 	void (*glTexEnvf)(GLenum target, GLenum pname, GLfloat param);
    191 	void (*glTexEnvfv)(GLenum target, GLenum pname, const GLfloat *params);
    192 	void (*glTexEnvi)(GLenum target, GLenum pname, GLint param);
    193 	void (*glTexEnvx)(GLenum target, GLenum pname, GLfixed param);
    194 	void (*glTexEnviv)(GLenum target, GLenum pname, const GLint *params);
    195 	void (*glTexEnvxv)(GLenum target, GLenum pname, const GLfixed *params);
    196 	void (*glTexImage2D)(GLenum target, GLint level, GLint internalformat, GLsizei width, GLsizei height,
    197 	                     GLint border, GLenum format, GLenum type, const GLvoid* pixels);
    198 	void (*glTexParameterf)(GLenum target, GLenum pname, GLfloat param);
    199 	void (*glTexParameterfv)(GLenum target, GLenum pname, const GLfloat* params);
    200 	void (*glTexParameteri)(GLenum target, GLenum pname, GLint param);
    201 	void (*glTexParameteriv)(GLenum target, GLenum pname, const GLint* params);
    202 	void (*glTexParameterx)(GLenum target, GLenum pname, GLfixed param);
    203 	void (*glTexParameterxv)(GLenum target, GLenum pname, const GLfixed *params);
    204 	void (*glTexSubImage2D)(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height,
    205 	                        GLenum format, GLenum type, const GLvoid* pixels);
    206 	void (*glTranslatef)(GLfloat x, GLfloat y, GLfloat z);
    207 	void (*glTranslatex)(GLfixed x, GLfixed y, GLfixed z);
    208 	void (*glVertexPointer)(GLint size, GLenum type, GLsizei stride, const GLvoid *pointer);
    209 	void (*glViewport)(GLint x, GLint y, GLsizei width, GLsizei height);
    210 	void (*glEGLImageTargetTexture2DOES)(GLenum target, GLeglImageOES image);
    211 	void (*glEGLImageTargetRenderbufferStorageOES)(GLenum target, GLeglImageOES image);
    212 	void (*glDrawTexsOES)(GLshort x, GLshort y, GLshort z, GLshort width, GLshort height);
    213 	void (*glDrawTexiOES)(GLint x, GLint y, GLint z, GLint width, GLint height);
    214 	void (*glDrawTexxOES)(GLfixed x, GLfixed y, GLfixed z, GLfixed width, GLfixed height);
    215 	void (*glDrawTexsvOES)(const GLshort *coords);
    216 	void (*glDrawTexivOES)(const GLint *coords);
    217 	void (*glDrawTexxvOES)(const GLfixed *coords);
    218 	void (*glDrawTexfOES)(GLfloat x, GLfloat y, GLfloat z, GLfloat width, GLfloat height);
    219 	void (*glDrawTexfvOES)(const GLfloat *coords);
    220 
    221 	egl::Context *(*es1CreateContext)(const egl::Config *config, const egl::Context *shareContext);
    222 	__eglMustCastToProperFunctionPointerType (*es1GetProcAddress)(const char *procname);
    223 	egl::Image *(*createBackBuffer)(int width, int height, const egl::Config *config);
    224 	egl::Image *(*createDepthStencil)(unsigned int width, unsigned int height, sw::Format format, int multiSampleDepth, bool discard);
    225 	sw::FrameBuffer *(*createFrameBuffer)(void *display, EGLNativeWindowType window, int width, int height);
    226 };
    227 
    228 class LibGLES_CM
    229 {
    230 public:
    231 	LibGLES_CM()
    232 	{
    233 		libGLES_CM = nullptr;
    234 		libGLES_CMexports = nullptr;
    235 	}
    236 
    237 	~LibGLES_CM()
    238 	{
    239 		freeLibrary(libGLES_CM);
    240 	}
    241 
    242 	operator bool()
    243 	{
    244 		return loadExports() != nullptr;
    245 	}
    246 
    247 	LibGLES_CMexports *operator->()
    248 	{
    249 		return loadExports();
    250 	}
    251 
    252 private:
    253 	LibGLES_CMexports *loadExports()
    254 	{
    255 		if(!libGLES_CM)
    256 		{
    257 			#if defined(_WIN32)
    258 				#if defined(__LP64__)
    259 					const char *libGLES_CM_lib[] = {"libGLES_CM.dll", "lib64GLES_CM_translator.dll"};
    260 				#else
    261 					const char *libGLES_CM_lib[] = {"libGLES_CM.dll", "libGLES_CM_translator.dll"};
    262 				#endif
    263 			#elif defined(__ANDROID__)
    264 				#if defined(__LP64__)
    265 					const char *libGLES_CM_lib[] = {"/vendor/lib64/egl/libGLESv1_CM_swiftshader.so"};
    266 				#else
    267 					const char *libGLES_CM_lib[] = {"/vendor/lib/egl/libGLESv1_CM_swiftshader.so"};
    268 				#endif
    269 			#elif defined(__linux__)
    270 				#if defined(__LP64__)
    271 					const char *libGLES_CM_lib[] = {"lib64GLES_CM_translator.so", "libGLES_CM.so.1", "libGLES_CM.so"};
    272 				#else
    273 					const char *libGLES_CM_lib[] = {"libGLES_CM_translator.so", "libGLES_CM.so.1", "libGLES_CM.so"};
    274 				#endif
    275 			#elif defined(__APPLE__)
    276 				#if defined(__LP64__)
    277 					const char *libGLES_CM_lib[] = {"lib64GLES_CM_translator.dylib", "libGLES_CM.dylib"};
    278 				#else
    279 					const char *libGLES_CM_lib[] = {"libGLES_CM_translator.dylib", "libGLES_CM.dylib"};
    280 				#endif
    281 			#else
    282 				#error "libGLES_CM::loadExports unimplemented for this platform"
    283 			#endif
    284 
    285 			libGLES_CM = loadLibrary(libGLES_CM_lib, "libGLES_CM_swiftshader");
    286 
    287 			if(libGLES_CM)
    288 			{
    289 				auto libGLES_CM_swiftshader = (LibGLES_CMexports *(*)())getProcAddress(libGLES_CM, "libGLES_CM_swiftshader");
    290 				libGLES_CMexports = libGLES_CM_swiftshader();
    291 			}
    292 		}
    293 
    294 		return libGLES_CMexports;
    295 	}
    296 
    297 	void *libGLES_CM;
    298 	LibGLES_CMexports *libGLES_CMexports;
    299 };
    300 
    301 #endif   // libGLES_CM_hpp
    302