| /* |
| * Copyright 2012 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #ifndef GrGLUtil_DEFINED |
| #define GrGLUtil_DEFINED |
| |
| #include "gl/GrGLInterface.h" |
| #include "GrGLDefines.h" |
| #include "GrStencilSettings.h" |
| |
| class SkMatrix; |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| |
| typedef uint32_t GrGLVersion; |
| typedef uint32_t GrGLSLVersion; |
| typedef uint32_t GrGLDriverVersion; |
| |
| #define GR_GL_VER(major, minor) ((static_cast<int>(major) << 16) | \ |
| static_cast<int>(minor)) |
| #define GR_GLSL_VER(major, minor) ((static_cast<int>(major) << 16) | \ |
| static_cast<int>(minor)) |
| #define GR_GL_DRIVER_VER(major, minor) ((static_cast<int>(major) << 16) | \ |
| static_cast<int>(minor)) |
| |
| #define GR_GL_INVALID_VER GR_GL_VER(0, 0) |
| #define GR_GLSL_INVALID_VER GR_GLSL_VER(0, 0) |
| #define GR_GL_DRIVER_UNKNOWN_VER GR_GL_DRIVER_VER(0, 0) |
| |
| /** |
| * The Vendor and Renderer enum values are lazily updated as required. |
| */ |
| enum GrGLVendor { |
| kARM_GrGLVendor, |
| kImagination_GrGLVendor, |
| kIntel_GrGLVendor, |
| kQualcomm_GrGLVendor, |
| kNVIDIA_GrGLVendor, |
| kATI_GrGLVendor, |
| |
| kOther_GrGLVendor |
| }; |
| |
| enum GrGLRenderer { |
| kTegra2_GrGLRenderer, |
| kTegra3_GrGLRenderer, |
| kPowerVR54x_GrGLRenderer, |
| kPowerVRRogue_GrGLRenderer, |
| kAdreno3xx_GrGLRenderer, |
| kAdreno4xx_GrGLRenderer, |
| kAdreno5xx_GrGLRenderer, |
| kOSMesa_GrGLRenderer, |
| /** Either HD 6xxx or Iris 6xxx */ |
| kIntel6xxx_GrGLRenderer, |
| kGalliumLLVM_GrGLRenderer, |
| /** T-6xx, T-7xx, or T-8xx */ |
| kMaliT_GrGLRenderer, |
| kANGLE_GrGLRenderer, |
| kOther_GrGLRenderer |
| }; |
| |
| enum GrGLDriver { |
| kMesa_GrGLDriver, |
| kChromium_GrGLDriver, |
| kNVIDIA_GrGLDriver, |
| kIntel_GrGLDriver, |
| kANGLE_GrGLDriver, |
| kQualcomm_GrGLDriver, |
| kUnknown_GrGLDriver |
| }; |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| |
| /** |
| * Some drivers want the var-int arg to be zero-initialized on input. |
| */ |
| #define GR_GL_INIT_ZERO 0 |
| #define GR_GL_GetIntegerv(gl, e, p) \ |
| do { \ |
| *(p) = GR_GL_INIT_ZERO; \ |
| GR_GL_CALL(gl, GetIntegerv(e, p)); \ |
| } while (0) |
| |
| #define GR_GL_GetFramebufferAttachmentParameteriv(gl, t, a, pname, p) \ |
| do { \ |
| *(p) = GR_GL_INIT_ZERO; \ |
| GR_GL_CALL(gl, GetFramebufferAttachmentParameteriv(t, a, pname, p)); \ |
| } while (0) |
| |
| #define GR_GL_GetInternalformativ(gl, t, f, n, s, p) \ |
| do { \ |
| *(p) = GR_GL_INIT_ZERO; \ |
| GR_GL_CALL(gl, GetInternalformativ(t, f, n, s, p)); \ |
| } while (0) |
| |
| #define GR_GL_GetNamedFramebufferAttachmentParameteriv(gl, fb, a, pname, p) \ |
| do { \ |
| *(p) = GR_GL_INIT_ZERO; \ |
| GR_GL_CALL(gl, GetNamedFramebufferAttachmentParameteriv(fb, a, pname, p)); \ |
| } while (0) |
| |
| #define GR_GL_GetRenderbufferParameteriv(gl, t, pname, p) \ |
| do { \ |
| *(p) = GR_GL_INIT_ZERO; \ |
| GR_GL_CALL(gl, GetRenderbufferParameteriv(t, pname, p)); \ |
| } while (0) |
| |
| #define GR_GL_GetTexLevelParameteriv(gl, t, l, pname, p) \ |
| do { \ |
| *(p) = GR_GL_INIT_ZERO; \ |
| GR_GL_CALL(gl, GetTexLevelParameteriv(t, l, pname, p)); \ |
| } while (0) |
| |
| #define GR_GL_GetShaderPrecisionFormat(gl, st, pt, range, precision) \ |
| do { \ |
| (range)[0] = GR_GL_INIT_ZERO; \ |
| (range)[1] = GR_GL_INIT_ZERO; \ |
| (*precision) = GR_GL_INIT_ZERO; \ |
| GR_GL_CALL(gl, GetShaderPrecisionFormat(st, pt, range, precision)); \ |
| } while (0) |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| |
| /** |
| * Helpers for glGetString() |
| */ |
| |
| // these variants assume caller already has a string from glGetString() |
| GrGLVersion GrGLGetVersionFromString(const char* versionString); |
| GrGLStandard GrGLGetStandardInUseFromString(const char* versionString); |
| GrGLSLVersion GrGLGetGLSLVersionFromString(const char* versionString); |
| GrGLVendor GrGLGetVendorFromString(const char* vendorString); |
| GrGLRenderer GrGLGetRendererFromString(const char* rendererString); |
| |
| void GrGLGetDriverInfo(GrGLStandard standard, |
| GrGLVendor vendor, |
| const char* rendererString, |
| const char* versionString, |
| GrGLDriver* outDriver, |
| GrGLDriverVersion* outVersion); |
| |
| // these variants call glGetString() |
| GrGLVersion GrGLGetVersion(const GrGLInterface*); |
| GrGLSLVersion GrGLGetGLSLVersion(const GrGLInterface*); |
| GrGLVendor GrGLGetVendor(const GrGLInterface*); |
| GrGLRenderer GrGLGetRenderer(const GrGLInterface*); |
| |
| |
| /** |
| * Helpers for glGetError() |
| */ |
| |
| void GrGLCheckErr(const GrGLInterface* gl, |
| const char* location, |
| const char* call); |
| |
| void GrGLClearErr(const GrGLInterface* gl); |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| |
| /** |
| * Macros for using GrGLInterface to make GL calls |
| */ |
| |
| // internal macro to conditionally call glGetError based on compile-time and |
| // run-time flags. |
| #if GR_GL_CHECK_ERROR |
| extern bool gCheckErrorGL; |
| #define GR_GL_CHECK_ERROR_IMPL(IFACE, X) \ |
| if (gCheckErrorGL) \ |
| GrGLCheckErr(IFACE, GR_FILE_AND_LINE_STR, #X) |
| #else |
| #define GR_GL_CHECK_ERROR_IMPL(IFACE, X) |
| #endif |
| |
| // internal macro to conditionally log the gl call using SkDebugf based on |
| // compile-time and run-time flags. |
| #if GR_GL_LOG_CALLS |
| extern bool gLogCallsGL; |
| #define GR_GL_LOG_CALLS_IMPL(X) \ |
| if (gLogCallsGL) \ |
| SkDebugf(GR_FILE_AND_LINE_STR "GL: " #X "\n") |
| #else |
| #define GR_GL_LOG_CALLS_IMPL(X) |
| #endif |
| |
| // makes a GL call on the interface and does any error checking and logging |
| #define GR_GL_CALL(IFACE, X) \ |
| do { \ |
| GR_GL_CALL_NOERRCHECK(IFACE, X); \ |
| GR_GL_CHECK_ERROR_IMPL(IFACE, X); \ |
| } while (false) |
| |
| // Variant of above that always skips the error check. This is useful when |
| // the caller wants to do its own glGetError() call and examine the error value. |
| #define GR_GL_CALL_NOERRCHECK(IFACE, X) \ |
| do { \ |
| (IFACE)->fFunctions.f##X; \ |
| GR_GL_LOG_CALLS_IMPL(X); \ |
| } while (false) |
| |
| // same as GR_GL_CALL but stores the return value of the gl call in RET |
| #define GR_GL_CALL_RET(IFACE, RET, X) \ |
| do { \ |
| GR_GL_CALL_RET_NOERRCHECK(IFACE, RET, X); \ |
| GR_GL_CHECK_ERROR_IMPL(IFACE, X); \ |
| } while (false) |
| |
| // same as GR_GL_CALL_RET but always skips the error check. |
| #define GR_GL_CALL_RET_NOERRCHECK(IFACE, RET, X) \ |
| do { \ |
| (RET) = (IFACE)->fFunctions.f##X; \ |
| GR_GL_LOG_CALLS_IMPL(X); \ |
| } while (false) |
| |
| // call glGetError without doing a redundant error check or logging. |
| #define GR_GL_GET_ERROR(IFACE) (IFACE)->fFunctions.fGetError() |
| |
| GrGLenum GrToGLStencilFunc(GrStencilTest test); |
| |
| |
| #endif |