2 * Copyright 2011 Google Inc.
4 * Use of this source code is governed by a BSD-style license that can be
5 * found in the LICENSE file.
13 void GrGLClearErr(const GrGLInterface* gl) {
14 while (GR_GL_NO_ERROR != gl->fFunctions.fGetError()) {}
18 const char *get_error_string(uint32_t err) {
22 case GR_GL_INVALID_ENUM:
23 return "Invalid Enum";
24 case GR_GL_INVALID_VALUE:
25 return "Invalid Value";
26 case GR_GL_INVALID_OPERATION:
27 return "Invalid Operation";
28 case GR_GL_OUT_OF_MEMORY:
29 return "Out of Memory";
30 case GR_GL_CONTEXT_LOST:
31 return "Context Lost";
37 void GrGLCheckErr(const GrGLInterface* gl,
40 uint32_t err = GR_GL_GET_ERROR(gl);
41 if (GR_GL_NO_ERROR != err) {
42 SkDebugf("---- glGetError 0x%x(%s)", err, get_error_string(err));
44 SkDebugf(" at\n\t%s", location);
47 SkDebugf("\n\t\t%s", call);
53 ///////////////////////////////////////////////////////////////////////////////
56 bool gLogCallsGL = !!(GR_GL_LOG_CALLS_START);
60 bool gCheckErrorGL = !!(GR_GL_CHECK_ERROR_START);
63 ///////////////////////////////////////////////////////////////////////////////
65 GrGLStandard GrGLGetStandardInUseFromString(const char* versionString) {
66 if (NULL == versionString) {
67 SkDebugf("NULL GL version string.");
68 return kNone_GrGLStandard;
74 int n = sscanf(versionString, "%d.%d", &major, &minor);
76 return kGL_GrGLStandard;
81 n = sscanf(versionString, "OpenGL ES-%c%c %d.%d", profile, profile+1, &major, &minor);
83 // we no longer support ES1.
84 return kNone_GrGLStandard;
88 n = sscanf(versionString, "OpenGL ES %d.%d", &major, &minor);
90 return kGLES_GrGLStandard;
92 return kNone_GrGLStandard;
95 bool GrGLIsMesaFromVersionString(const char* versionString) {
96 int major, minor, mesaMajor, mesaMinor;
98 GrGLStandard standard = GrGLGetStandardInUseFromString(versionString);
100 if (standard == kGL_GrGLStandard) {
101 int n = sscanf(versionString, "%d.%d Mesa %d.%d", &major, &minor, &mesaMajor, &mesaMinor);
105 int n = sscanf(versionString, "OpenGL ES %d.%d Mesa %d.%d", &major, &minor, &mesaMajor, &mesaMinor);
111 bool GrGLIsChromiumFromRendererString(const char* rendererString) {
112 return 0 == strcmp(rendererString, "Chromium");
115 GrGLVersion GrGLGetVersionFromString(const char* versionString) {
116 if (NULL == versionString) {
117 SkDebugf("NULL GL version string.");
118 return GR_GL_INVALID_VER;
124 int mesaMajor, mesaMinor;
125 int n = sscanf(versionString, "%d.%d Mesa %d.%d", &major, &minor, &mesaMajor, &mesaMinor);
127 return GR_GL_VER(major, minor);
130 n = sscanf(versionString, "%d.%d", &major, &minor);
132 return GR_GL_VER(major, minor);
136 n = sscanf(versionString, "OpenGL ES-%c%c %d.%d", profile, profile+1,
139 return GR_GL_VER(major, minor);
142 n = sscanf(versionString, "OpenGL ES %d.%d", &major, &minor);
144 return GR_GL_VER(major, minor);
147 return GR_GL_INVALID_VER;
150 GrGLSLVersion GrGLGetGLSLVersionFromString(const char* versionString) {
151 if (NULL == versionString) {
152 SkDebugf("NULL GLSL version string.");
153 return GR_GLSL_INVALID_VER;
158 int n = sscanf(versionString, "%d.%d", &major, &minor);
160 return GR_GLSL_VER(major, minor);
163 n = sscanf(versionString, "OpenGL ES GLSL ES %d.%d", &major, &minor);
165 return GR_GLSL_VER(major, minor);
168 #ifdef SK_BUILD_FOR_ANDROID
169 // android hack until the gpu vender updates their drivers
170 n = sscanf(versionString, "OpenGL ES GLSL %d.%d", &major, &minor);
172 return GR_GLSL_VER(major, minor);
176 return GR_GLSL_INVALID_VER;
179 GrGLVendor GrGLGetVendorFromString(const char* vendorString) {
181 if (0 == strcmp(vendorString, "ARM")) {
182 return kARM_GrGLVendor;
184 if (0 == strcmp(vendorString, "Imagination Technologies")) {
185 return kImagination_GrGLVendor;
187 if (0 == strncmp(vendorString, "Intel ", 6) || 0 == strcmp(vendorString, "Intel")) {
188 return kIntel_GrGLVendor;
190 if (0 == strcmp(vendorString, "Qualcomm")) {
191 return kQualcomm_GrGLVendor;
193 if (0 == strcmp(vendorString, "NVIDIA Corporation")) {
194 return kNVIDIA_GrGLVendor;
197 return kOther_GrGLVendor;
200 GrGLRenderer GrGLGetRendererFromString(const char* rendererString) {
201 if (rendererString) {
202 if (0 == strcmp(rendererString, "NVIDIA Tegra 3")) {
203 return kTegra3_GrGLRenderer;
204 } else if (0 == strcmp(rendererString, "NVIDIA Tegra")) {
205 return kTegra2_GrGLRenderer;
208 int n = sscanf(rendererString, "PowerVR SGX 54%d", &lastDigit);
209 if (1 == n && lastDigit >= 0 && lastDigit <= 9) {
210 return kPowerVR54x_GrGLRenderer;
212 static const char kPowerVRRogueStr[] = "PowerVR Rogue";
213 if (0 == strncmp(rendererString, kPowerVRRogueStr,
214 SK_ARRAY_COUNT(kPowerVRRogueStr)-1)) {
215 return kPowerVRRogue_GrGLRenderer;
218 return kOther_GrGLRenderer;
221 GrGLVersion GrGLGetVersion(const GrGLInterface* gl) {
223 GR_GL_CALL_RET(gl, v, GetString(GR_GL_VERSION));
224 return GrGLGetVersionFromString((const char*) v);
227 GrGLSLVersion GrGLGetGLSLVersion(const GrGLInterface* gl) {
229 GR_GL_CALL_RET(gl, v, GetString(GR_GL_SHADING_LANGUAGE_VERSION));
230 return GrGLGetGLSLVersionFromString((const char*) v);
233 GrGLVendor GrGLGetVendor(const GrGLInterface* gl) {
235 GR_GL_CALL_RET(gl, v, GetString(GR_GL_VENDOR));
236 return GrGLGetVendorFromString((const char*) v);
239 GrGLRenderer GrGLGetRenderer(const GrGLInterface* gl) {
241 GR_GL_CALL_RET(gl, v, GetString(GR_GL_RENDERER));
242 return GrGLGetRendererFromString((const char*) v);
245 template<> void GrGLGetMatrix<3>(GrGLfloat* dest, const SkMatrix& src) {
247 dest[0] = SkScalarToFloat(src[SkMatrix::kMScaleX]);
248 dest[1] = SkScalarToFloat(src[SkMatrix::kMSkewY]);
249 dest[2] = SkScalarToFloat(src[SkMatrix::kMPersp0]);
252 dest[3] = SkScalarToFloat(src[SkMatrix::kMSkewX]);
253 dest[4] = SkScalarToFloat(src[SkMatrix::kMScaleY]);
254 dest[5] = SkScalarToFloat(src[SkMatrix::kMPersp1]);
257 dest[6] = SkScalarToFloat(src[SkMatrix::kMTransX]);
258 dest[7] = SkScalarToFloat(src[SkMatrix::kMTransY]);
259 dest[8] = SkScalarToFloat(src[SkMatrix::kMPersp2]);
262 template<> void GrGLGetMatrix<4>(GrGLfloat* dest, const SkMatrix& src) {
264 dest[0] = SkScalarToFloat(src[SkMatrix::kMScaleX]);
265 dest[1] = SkScalarToFloat(src[SkMatrix::kMSkewY]);
267 dest[3] = SkScalarToFloat(src[SkMatrix::kMPersp0]);
270 dest[4] = SkScalarToFloat(src[SkMatrix::kMSkewX]);
271 dest[5] = SkScalarToFloat(src[SkMatrix::kMScaleY]);
273 dest[7] = SkScalarToFloat(src[SkMatrix::kMPersp1]);
282 dest[12] = SkScalarToFloat(src[SkMatrix::kMTransX]);
283 dest[13] = SkScalarToFloat(src[SkMatrix::kMTransY]);
285 dest[15] = SkScalarToFloat(src[SkMatrix::kMPersp2]);
288 GrGLenum GrToGLStencilFunc(GrStencilFunc basicFunc) {
289 static const GrGLenum gTable[] = {
290 GR_GL_ALWAYS, // kAlways_StencilFunc
291 GR_GL_NEVER, // kNever_StencilFunc
292 GR_GL_GREATER, // kGreater_StencilFunc
293 GR_GL_GEQUAL, // kGEqual_StencilFunc
294 GR_GL_LESS, // kLess_StencilFunc
295 GR_GL_LEQUAL, // kLEqual_StencilFunc,
296 GR_GL_EQUAL, // kEqual_StencilFunc,
297 GR_GL_NOTEQUAL, // kNotEqual_StencilFunc,
299 GR_STATIC_ASSERT(SK_ARRAY_COUNT(gTable) == kBasicStencilFuncCount);
300 GR_STATIC_ASSERT(0 == kAlways_StencilFunc);
301 GR_STATIC_ASSERT(1 == kNever_StencilFunc);
302 GR_STATIC_ASSERT(2 == kGreater_StencilFunc);
303 GR_STATIC_ASSERT(3 == kGEqual_StencilFunc);
304 GR_STATIC_ASSERT(4 == kLess_StencilFunc);
305 GR_STATIC_ASSERT(5 == kLEqual_StencilFunc);
306 GR_STATIC_ASSERT(6 == kEqual_StencilFunc);
307 GR_STATIC_ASSERT(7 == kNotEqual_StencilFunc);
308 SkASSERT((unsigned) basicFunc < kBasicStencilFuncCount);
310 return gTable[basicFunc];