The Tor Browser / file diff

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/gfx/skia/trunk/src/gpu/GrTextureAccess.cpp	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,107 @@
     1.4 +/*
     1.5 + * Copyright 2012 Google Inc.
     1.6 + *
     1.7 + * Use of this source code is governed by a BSD-style license that can be
     1.8 + * found in the LICENSE file.
     1.9 + */
    1.10 +
    1.11 +#include "GrTextureAccess.h"
    1.12 +#include "GrColor.h"
    1.13 +#include "GrTexture.h"
    1.14 +
    1.15 +GrTextureAccess::GrTextureAccess() {
    1.16 +#ifdef SK_DEBUG
    1.17 +    memcpy(fSwizzle, "void", 5);
    1.18 +    fSwizzleMask = 0xbeeffeed;
    1.19 +#endif
    1.20 +}
    1.21 +
    1.22 +GrTextureAccess::GrTextureAccess(GrTexture* texture, const GrTextureParams& params) {
    1.23 +    this->reset(texture, params);
    1.24 +}
    1.25 +
    1.26 +GrTextureAccess::GrTextureAccess(GrTexture* texture,
    1.27 +                                 GrTextureParams::FilterMode filterMode,
    1.28 +                                 SkShader::TileMode tileXAndY) {
    1.29 +    this->reset(texture, filterMode, tileXAndY);
    1.30 +}
    1.31 +
    1.32 +GrTextureAccess::GrTextureAccess(GrTexture* texture,
    1.33 +                                 const char* swizzle,
    1.34 +                                 const GrTextureParams& params) {
    1.35 +    this->reset(texture, swizzle, params);
    1.36 +}
    1.37 +
    1.38 +GrTextureAccess::GrTextureAccess(GrTexture* texture,
    1.39 +                                 const char* swizzle,
    1.40 +                                 GrTextureParams::FilterMode filterMode,
    1.41 +                                 SkShader::TileMode tileXAndY) {
    1.42 +    this->reset(texture, swizzle, filterMode, tileXAndY);
    1.43 +}
    1.44 +
    1.45 +void GrTextureAccess::reset(GrTexture* texture,
    1.46 +                            const char* swizzle,
    1.47 +                            const GrTextureParams& params) {
    1.48 +    SkASSERT(NULL != texture);
    1.49 +    SkASSERT(strlen(swizzle) >= 1 && strlen(swizzle) <= 4);
    1.50 +
    1.51 +    fParams = params;
    1.52 +    fTexture.reset(SkRef(texture));
    1.53 +    this->setSwizzle(swizzle);
    1.54 +}
    1.55 +
    1.56 +void GrTextureAccess::reset(GrTexture* texture,
    1.57 +                            const char* swizzle,
    1.58 +                            GrTextureParams::FilterMode filterMode,
    1.59 +                            SkShader::TileMode tileXAndY) {
    1.60 +    SkASSERT(NULL != texture);
    1.61 +    SkASSERT(strlen(swizzle) >= 1 && strlen(swizzle) <= 4);
    1.62 +
    1.63 +    fParams.reset(tileXAndY, filterMode);
    1.64 +    fTexture.reset(SkRef(texture));
    1.65 +    this->setSwizzle(swizzle);
    1.66 +}
    1.67 +
    1.68 +void GrTextureAccess::reset(GrTexture* texture,
    1.69 +                            const GrTextureParams& params) {
    1.70 +    SkASSERT(NULL != texture);
    1.71 +    fTexture.reset(SkRef(texture));
    1.72 +    fParams = params;
    1.73 +    memcpy(fSwizzle, "rgba", 5);
    1.74 +    fSwizzleMask = kRGBA_GrColorComponentFlags;
    1.75 +}
    1.76 +
    1.77 +void GrTextureAccess::reset(GrTexture* texture,
    1.78 +                            GrTextureParams::FilterMode filterMode,
    1.79 +                            SkShader::TileMode tileXAndY) {
    1.80 +    SkASSERT(NULL != texture);
    1.81 +    fTexture.reset(SkRef(texture));
    1.82 +    fParams.reset(tileXAndY, filterMode);
    1.83 +    memcpy(fSwizzle, "rgba", 5);
    1.84 +    fSwizzleMask = kRGBA_GrColorComponentFlags;
    1.85 +}
    1.86 +
    1.87 +void GrTextureAccess::setSwizzle(const char* swizzle) {
    1.88 +    fSwizzleMask = 0;
    1.89 +    memset(fSwizzle, '\0', 5);
    1.90 +    for (int i = 0; i < 4 && '\0' != swizzle[i]; ++i) {
    1.91 +        fSwizzle[i] = swizzle[i];
    1.92 +        switch (swizzle[i]) {
    1.93 +            case 'r':
    1.94 +                fSwizzleMask |= kR_GrColorComponentFlag;
    1.95 +                break;
    1.96 +            case 'g':
    1.97 +                fSwizzleMask |= kG_GrColorComponentFlag;
    1.98 +                break;
    1.99 +            case 'b':
   1.100 +                fSwizzleMask |= kB_GrColorComponentFlag;
   1.101 +                break;
   1.102 +            case 'a':
   1.103 +                fSwizzleMask |= kA_GrColorComponentFlag;
   1.104 +                break;
   1.105 +            default:
   1.106 +                GrCrash("Unexpected swizzle string character.");
   1.107 +                break;
   1.108 +        }
   1.109 +    }
   1.110 +}