+ def defineShadowBufferHelper(self):
+ print 'void _shadow_glGetBufferSubData(GLenum target, GLintptr offset,'
+ print ' GLsizeiptr size, GLvoid *data)'
+ print '{'
+ print ' struct gltrace::Context *ctx = gltrace::getContext();'
+ print ' if (!ctx->needsShadowBuffers() || target != GL_ELEMENT_ARRAY_BUFFER) {'
+ print ' glGetBufferSubData(target, offset, size, data);'
+ print ' return;'
+ print ' }'
+ print
+ print ' struct gltrace::Buffer *buf;'
+ print ' GLint buf_id;'
+ print
+ print ' glGetIntegerv(GL_ELEMENT_ARRAY_BUFFER_BINDING, &buf_id);'
+ print ' buf = ctx->buffers[buf_id];'
+ print ' assert(size + offset <= buf->size);'
+ print ' memcpy(data, (uint8_t *)buf->data + offset, size);'
+ print '}'
+
+ def shadowBufferProlog(self, function):
+ if function.name == 'glBufferData':
+ print ' gltrace::Context *ctx = gltrace::getContext();'
+ print ' if (ctx->needsShadowBuffers() && target == GL_ELEMENT_ARRAY_BUFFER) {'
+ print ' struct gltrace::Buffer *buf;'
+ print ' GLint buf_id;'
+ print
+ print ' glGetIntegerv(GL_ELEMENT_ARRAY_BUFFER_BINDING, &buf_id);'
+ print ' buf = ctx->buffers[buf_id];'
+ print ' buf->resetData(data, size);'
+ print ' }'
+ print
+
+ if function.name == 'glBufferSubData':
+ print ' gltrace::Context *ctx = gltrace::getContext();'
+ print ' if (ctx->needsShadowBuffers() && target == GL_ELEMENT_ARRAY_BUFFER) {'
+ print ' struct gltrace::Buffer *buf;'
+ print ' GLint buf_id;'
+ print
+ print ' glGetIntegerv(GL_ELEMENT_ARRAY_BUFFER_BINDING, &buf_id);'
+ print ' buf = ctx->buffers[buf_id];'
+ print ' memcpy((uint8_t *)buf->data + offset, data, size);'
+ print ' }'
+ print
+
+ if function.name == 'glDeleteBuffers':
+ print ' gltrace::Context *ctx = gltrace::getContext();'
+ print ' if (ctx->needsShadowBuffers()) {'
+ print ' int i;'
+ print
+ print ' for (i = 0; i < n; i++) {'
+ print ' unsigned long buf_id;'
+ print ' struct gltrace::Buffer *buf;'
+ print
+ print ' buf_id = buffer[i];'
+ print ' buf = ctx->buffers[buf_id];'
+ print ' if (buf) {'
+ print ' ctx->buffers.erase(buf_id);'
+ print ' delete buf;'
+ print ' }'
+ print ' }'
+ print ' }'
+
+ def shadowBufferEpilog(self, function):
+ if function.name == 'glGenBuffers':
+ print ' gltrace::Context *ctx = gltrace::getContext();'
+ print ' if (ctx->needsShadowBuffers()) {'
+ print ' int i;'
+ print ' for (i = 0; i < n; i++) {'
+ print ' GLuint buf_id = buffer[i];'
+ print ' ctx->buffers[buf_id] = new gltrace::Buffer;'
+ print ' }'
+ print ' }'
+ print
+
+