1 /* 2 * Copyright(C) 2015 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0(the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #include <GLES3/gl3.h> 18 #include <GLES2/gl2ext.h> 19 20 #include <stdlib.h> 21 #include <string.h> 22 23 struct { 24 GLboolean scissorEnabled; 25 } gState; 26 27 void glGenCommon(GLsizei n, GLuint *buffers) { 28 static GLuint nextId = 0; 29 int i; 30 for(i = 0; i < n; i++) { 31 buffers[i] = ++nextId; 32 } 33 } 34 35 void glGenBuffers(GLsizei n, GLuint *buffers) { 36 glGenCommon(n, buffers); 37 } 38 39 void glGenFramebuffers(GLsizei n, GLuint *framebuffers) { 40 glGenCommon(n, framebuffers); 41 } 42 43 void glGenRenderbuffers(GLsizei n, GLuint *renderbuffers) { 44 glGenCommon(n, renderbuffers); 45 } 46 47 void glGenTextures(GLsizei n, GLuint *textures) { 48 glGenCommon(n, textures); 49 } 50 51 GLuint glCreateProgram(void) { 52 static GLuint nextProgram = 0; 53 return ++nextProgram; 54 } 55 56 GLuint glCreateShader(GLenum type) { 57 static GLuint nextShader = 0; 58 return ++nextShader; 59 } 60 61 void glGetProgramiv(GLuint program, GLenum pname, GLint *params) { 62 switch (pname) { 63 case GL_DELETE_STATUS: 64 case GL_LINK_STATUS: 65 case GL_VALIDATE_STATUS: 66 *params = GL_TRUE; 67 break; 68 case GL_INFO_LOG_LENGTH: 69 *params = 16; 70 break; 71 } 72 } 73 74 void glGetProgramInfoLog(GLuint program, GLsizei bufSize, GLsizei *length, GLchar *infoLog) { 75 *length = snprintf(infoLog, bufSize, "success"); 76 if (*length >= bufSize) { 77 *length = bufSize - 1; 78 } 79 } 80 81 void glGetShaderiv(GLuint shader, GLenum pname, GLint *params) { 82 switch (pname) { 83 case GL_COMPILE_STATUS: 84 case GL_DELETE_STATUS: 85 *params = GL_TRUE; 86 } 87 } 88 89 void glGetShaderInfoLog(GLuint shader, GLsizei bufSize, GLsizei *length, GLchar *infoLog) { 90 *length = snprintf(infoLog, bufSize, "success"); 91 if (*length >= bufSize) { 92 *length = bufSize - 1; 93 } 94 } 95 96 void setBooleanState(GLenum cap, GLboolean value) { 97 switch (cap) { 98 case GL_SCISSOR_TEST: 99 gState.scissorEnabled = value; 100 break; 101 } 102 } 103 104 void glEnable(GLenum cap) { 105 setBooleanState(cap, GL_TRUE); 106 } 107 108 void glDisable(GLenum cap) { 109 setBooleanState(cap, GL_FALSE); 110 } 111 112 GLboolean glIsEnabled(GLenum cap) { 113 switch (cap) { 114 case GL_SCISSOR_TEST: 115 return gState.scissorEnabled; 116 default: 117 return GL_FALSE; 118 } 119 } 120 121 void glGetIntegerv(GLenum pname, GLint *data) { 122 switch (pname) { 123 case GL_MAX_TEXTURE_SIZE: 124 *data = 2048; 125 break; 126 case GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS: 127 *data = 4; 128 break; 129 default: 130 *data = 0; 131 } 132 } 133 134 const char* getString(GLenum name) { 135 switch (name) { 136 case GL_VENDOR: 137 return "android"; 138 case GL_RENDERER: 139 return "null"; 140 case GL_VERSION: 141 return "OpenGL ES 2.0 rev1"; 142 case GL_SHADING_LANGUAGE_VERSION: 143 return "OpenGL ES GLSL ES 2.0 rev1"; 144 case GL_EXTENSIONS: 145 default: 146 return ""; 147 } 148 } 149 150 const GLubyte* glGetString(GLenum name) { 151 return (GLubyte*) getString(name); 152 } 153 154 void glActiveTexture(GLenum texture) {} 155 void glAttachShader(GLuint program, GLuint shader) {} 156 void glBindAttribLocation(GLuint program, GLuint index, const GLchar *name) {} 157 void glBindBuffer(GLenum target, GLuint buffer) {} 158 void glBindFramebuffer(GLenum target, GLuint framebuffer) {} 159 void glBindRenderbuffer(GLenum target, GLuint renderbuffer) {} 160 void glBindTexture(GLenum target, GLuint texture) {} 161 void glBlendColor(GLfloat red, GLfloat green, GLfloat blue, GLfloat alpha) {} 162 void glBlendEquation(GLenum mode) {} 163 void glBlendEquationSeparate(GLenum modeRGB, GLenum modeAlpha) {} 164 void glBlendFunc(GLenum sfactor, GLenum dfactor) {} 165 void glBlendFuncSeparate(GLenum sfactorRGB, GLenum dfactorRGB, GLenum sfactorAlpha, GLenum dfactorAlpha) {} 166 void glBufferData(GLenum target, GLsizeiptr size, const void *data, GLenum usage) {} 167 void glBufferSubData(GLenum target, GLintptr offset, GLsizeiptr size, const void *data) {} 168 void glClear(GLbitfield mask) {} 169 void glClearColor(GLfloat red, GLfloat green, GLfloat blue, GLfloat alpha) {} 170 void glClearDepthf(GLfloat d) {} 171 void glClearStencil(GLint s) {} 172 void glColorMask(GLboolean red, GLboolean green, GLboolean blue, GLboolean alpha) {} 173 void glCompileShader(GLuint shader) {} 174 void glCompressedTexImage2D(GLenum target, GLint level, GLenum internalformat, GLsizei width, GLsizei height, GLint border, GLsizei imageSize, const void *data) {} 175 void glCompressedTexSubImage2D(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLsizei imageSize, const void *data) {} 176 void glCopyTexImage2D(GLenum target, GLint level, GLenum internalformat, GLint x, GLint y, GLsizei width, GLsizei height, GLint border) {} 177 void glCopyTexSubImage2D(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint x, GLint y, GLsizei width, GLsizei height) {} 178 void glCullFace(GLenum mode) {} 179 void glDeleteBuffers(GLsizei n, const GLuint *buffers) {} 180 void glDeleteFramebuffers(GLsizei n, const GLuint *framebuffers) {} 181 void glDeleteProgram(GLuint program) {} 182 void glDeleteRenderbuffers(GLsizei n, const GLuint *renderbuffers) {} 183 void glDeleteShader(GLuint shader) {} 184 void glDeleteTextures(GLsizei n, const GLuint *textures) {} 185 void glDepthFunc(GLenum func) {} 186 void glDepthMask(GLboolean flag) {} 187 void glDepthRangef(GLfloat n, GLfloat f) {} 188 void glDetachShader(GLuint program, GLuint shader) {} 189 void glDisableVertexAttribArray(GLuint index) {} 190 void glDrawArrays(GLenum mode, GLint first, GLsizei count) {} 191 void glDrawElements(GLenum mode, GLsizei count, GLenum type, const void *indices) {} 192 void glEnableVertexAttribArray(GLuint index) {} 193 void glFinish(void) {} 194 void glFlush(void) {} 195 void glFramebufferRenderbuffer(GLenum target, GLenum attachment, GLenum renderbuffertarget, GLuint renderbuffer) {} 196 void glFramebufferTexture2D(GLenum target, GLenum attachment, GLenum textarget, GLuint texture, GLint level) {} 197 void glFrontFace(GLenum mode) {} 198 void glGenerateMipmap(GLenum target) {} 199 GLint glGetAttribLocation(GLuint program, const GLchar *name) { return 1; } 200 GLenum glGetError(void) { return GL_NO_ERROR; } 201 GLint glGetUniformLocation(GLuint program, const GLchar *name) { return 2; } 202 void glHint(GLenum target, GLenum mode) {} 203 void glLineWidth(GLfloat width) {} 204 void glLinkProgram(GLuint program) {} 205 void glPixelStorei(GLenum pname, GLint param) {} 206 void glPolygonOffset(GLfloat factor, GLfloat units) {} 207 void glReadPixels(GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type, void *pixels) {} 208 void glReleaseShaderCompiler(void) {} 209 void glRenderbufferStorage(GLenum target, GLenum internalformat, GLsizei width, GLsizei height) {} 210 void glSampleCoverage(GLfloat value, GLboolean invert) {} 211 void glScissor(GLint x, GLint y, GLsizei width, GLsizei height) {} 212 void glShaderBinary(GLsizei count, const GLuint *shaders, GLenum binaryformat, const void *binary, GLsizei length) {} 213 void glShaderSource(GLuint shader, GLsizei count, const GLchar *const*string, const GLint *length) {} 214 void glStencilFunc(GLenum func, GLint ref, GLuint mask) {} 215 void glStencilFuncSeparate(GLenum face, GLenum func, GLint ref, GLuint mask) {} 216 void glStencilMask(GLuint mask) {} 217 void glStencilMaskSeparate(GLenum face, GLuint mask) {} 218 void glStencilOp(GLenum fail, GLenum zfail, GLenum zpass) {} 219 void glStencilOpSeparate(GLenum face, GLenum sfail, GLenum dpfail, GLenum dppass) {} 220 void glTexImage2D(GLenum target, GLint level, GLint internalformat, GLsizei width, GLsizei height, GLint border, GLenum format, GLenum type, const void *pixels) {} 221 void glTexParameterf(GLenum target, GLenum pname, GLfloat param) {} 222 void glTexParameterfv(GLenum target, GLenum pname, const GLfloat *params) {} 223 void glTexParameteri(GLenum target, GLenum pname, GLint param) {} 224 void glTexParameteriv(GLenum target, GLenum pname, const GLint *params) {} 225 void glTexSubImage2D(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLenum type, const void *pixels) {} 226 void glUniform1f(GLint location, GLfloat v0) {} 227 void glUniform1fv(GLint location, GLsizei count, const GLfloat *value) {} 228 void glUniform1i(GLint location, GLint v0) {} 229 void glUniform1iv(GLint location, GLsizei count, const GLint *value) {} 230 void glUniform2f(GLint location, GLfloat v0, GLfloat v1) {} 231 void glUniform2fv(GLint location, GLsizei count, const GLfloat *value) {} 232 void glUniform2i(GLint location, GLint v0, GLint v1) {} 233 void glUniform2iv(GLint location, GLsizei count, const GLint *value) {} 234 void glUniform3f(GLint location, GLfloat v0, GLfloat v1, GLfloat v2) {} 235 void glUniform3fv(GLint location, GLsizei count, const GLfloat *value) {} 236 void glUniform3i(GLint location, GLint v0, GLint v1, GLint v2) {} 237 void glUniform3iv(GLint location, GLsizei count, const GLint *value) {} 238 void glUniform4f(GLint location, GLfloat v0, GLfloat v1, GLfloat v2, GLfloat v3) {} 239 void glUniform4fv(GLint location, GLsizei count, const GLfloat *value) {} 240 void glUniform4i(GLint location, GLint v0, GLint v1, GLint v2, GLint v3) {} 241 void glUniform4iv(GLint location, GLsizei count, const GLint *value) {} 242 void glUniformMatrix2fv(GLint location, GLsizei count, GLboolean transpose, const GLfloat *value) {} 243 void glUniformMatrix3fv(GLint location, GLsizei count, GLboolean transpose, const GLfloat *value) {} 244 void glUniformMatrix4fv(GLint location, GLsizei count, GLboolean transpose, const GLfloat *value) {} 245 void glUseProgram(GLuint program) {} 246 void glValidateProgram(GLuint program) {} 247 void glVertexAttrib1f(GLuint index, GLfloat x) {} 248 void glVertexAttrib1fv(GLuint index, const GLfloat *v) {} 249 void glVertexAttrib2f(GLuint index, GLfloat x, GLfloat y) {} 250 void glVertexAttrib2fv(GLuint index, const GLfloat *v) {} 251 void glVertexAttrib3f(GLuint index, GLfloat x, GLfloat y, GLfloat z) {} 252 void glVertexAttrib3fv(GLuint index, const GLfloat *v) {} 253 void glVertexAttrib4f(GLuint index, GLfloat x, GLfloat y, GLfloat z, GLfloat w) {} 254 void glVertexAttrib4fv(GLuint index, const GLfloat *v) {} 255 void glVertexAttribPointer(GLuint index, GLint size, GLenum type, GLboolean normalized, GLsizei stride, const void *pointer) {} 256 void glViewport(GLint x, GLint y, GLsizei width, GLsizei height) {} 257 258 259 // gles2 ext 260 void glInsertEventMarkerEXT(GLsizei length, const GLchar *marker) {} 261 void glPushGroupMarkerEXT(GLsizei length, const GLchar *marker) {} 262 void glPopGroupMarkerEXT(void) {} 263 void glDiscardFramebufferEXT(GLenum target, GLsizei numAttachments, const GLenum *attachments) {} 264 void glStartTilingQCOM(GLuint x, GLuint y, GLuint width, GLuint height, GLbitfield preserveMask) {} 265 void glEndTilingQCOM(GLbitfield preserveMask) {} 266 void glEGLImageTargetTexture2DOES(GLenum target, GLeglImageOES image) {} 267 268 // GLES3 269 void* glMapBufferRange(GLenum target, GLintptr offset, GLsizeiptr length, GLbitfield access) { 270 return 0; 271 } 272 273 GLboolean glUnmapBuffer(GLenum target) { 274 return GL_FALSE; 275 } 276
