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      1 
      2 /*
      3  * Copyright 2011 Google Inc.
      4  *
      5  * Use of this source code is governed by a BSD-style license that can be
      6  * found in the LICENSE file.
      7  */
      8 
      9 
     10 #include "GrGLTexture.h"
     11 
     12 #include "GrGpuGL.h"
     13 
     14 #define GPUGL static_cast<GrGpuGL*>(getGpu())
     15 
     16 #define GL_CALL(X) GR_GL_CALL(GPUGL->glInterface(), X)
     17 
     18 const GrGLenum* GrGLTexture::WrapMode2GLWrap() {
     19     static const GrGLenum repeatModes[] = {
     20         GR_GL_CLAMP_TO_EDGE,
     21         GR_GL_REPEAT,
     22         GR_GL_MIRRORED_REPEAT
     23     };
     24     return repeatModes;
     25 };
     26 
     27 void GrGLTexture::init(GrGpuGL* gpu,
     28                        const Desc& textureDesc,
     29                        const GrGLRenderTarget::Desc* rtDesc) {
     30 
     31     GrAssert(0 != textureDesc.fTextureID);
     32 
     33     fTexParams.invalidate();
     34     fTexParamsTimestamp = GrGpu::kExpiredTimestamp;
     35     fTexIDObj           = new GrGLTexID(GPUGL->glInterface(),
     36                                         textureDesc.fTextureID,
     37                                         textureDesc.fOwnsID);
     38     fOrientation        = textureDesc.fOrientation;
     39 
     40     if (NULL != rtDesc) {
     41         // we render to the top left
     42         GrGLIRect vp;
     43         vp.fLeft   = 0;
     44         vp.fWidth  = textureDesc.fWidth;
     45         vp.fBottom = 0;
     46         vp.fHeight = textureDesc.fHeight;
     47 
     48         fRenderTarget = new GrGLRenderTarget(gpu, *rtDesc, vp, fTexIDObj, this);
     49     }
     50 }
     51 
     52 GrGLTexture::GrGLTexture(GrGpuGL* gpu,
     53                          const Desc& textureDesc)
     54     : INHERITED(gpu,
     55                 textureDesc.fWidth,
     56                 textureDesc.fHeight,
     57                 textureDesc.fConfig) {
     58     this->init(gpu, textureDesc, NULL);
     59 }
     60 
     61 GrGLTexture::GrGLTexture(GrGpuGL* gpu,
     62                          const Desc& textureDesc,
     63                          const GrGLRenderTarget::Desc& rtDesc)
     64     : INHERITED(gpu,
     65                 textureDesc.fWidth,
     66                 textureDesc.fHeight,
     67                 textureDesc.fConfig) {
     68     this->init(gpu, textureDesc, &rtDesc);
     69 }
     70 
     71 void GrGLTexture::onRelease() {
     72     INHERITED::onRelease();
     73     GPUGL->notifyTextureDelete(this);
     74     if (NULL != fTexIDObj) {
     75         fTexIDObj->unref();
     76         fTexIDObj = NULL;
     77     }
     78 }
     79 
     80 void GrGLTexture::onAbandon() {
     81     INHERITED::onAbandon();
     82     if (NULL != fTexIDObj) {
     83         fTexIDObj->abandon();
     84     }
     85 }
     86 
     87 intptr_t GrGLTexture::getTextureHandle() const {
     88     return fTexIDObj->id();
     89 }
     90 
     91