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/*
* Copyright (C) 2010 - 2011 Samsung Electronics Co., Ltd. All rights reserved.
*
* Contact:
* DongKyun Yun <dk77.yun@samsung.com>
* SangJin Kim <sangjin3.kim@samsung.com>
* HyunGoo Kang <hyungoo1.kang@samsung.com>
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
* of the Software, and to permit persons to whom the Software is furnished to do
* so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
* Contributors:
* - S-Core Co., Ltd
*
*/
#include "es2front.h"
void GL_APIENTRY ES2ENTRY(DrawArrays)(GLenum mode, GLint first, GLsizei count) {
GLint iArrayBufferBinding;
GLvoid* pNewArea;
GLchar* pFixedBase;
GLfloat* pFloat;
int i, j;
GLboolean bSpecial = (CCV(pVertexAttrib[0].bEnabled) == GL_FALSE)
&& (CCV(pVertexAttrib[1].bEnabled) == GL_TRUE);
if (mode < 0 || GL_TRIANGLE_FAN < mode) {
ES2INTER(SetError)(GL_INVALID_ENUM);
return;
}
if (count < 0) {
ES2INTER(SetError)(GL_INVALID_VALUE);
return;
} else if (count == 0) {
return;
}
FNPTR(GetIntegerv)(GL_ARRAY_BUFFER_BINDING, &iArrayBufferBinding);
FNPTR(BindBuffer)(GL_ARRAY_BUFFER, 0);
for (i = 0; i < CCV(nMaxVertexAttribs); i++) {
register struct VertexAttribUnit* pVertexAttrib = &(CCV(pVertexAttrib[i]));
if (pVertexAttrib->bEnabled == GL_FALSE) continue;
if (i == 1 && bSpecial == GL_TRUE && pVertexAttrib->eType != GL_FIXED) {
FNPTR(BindBuffer)(GL_ARRAY_BUFFER, pVertexAttrib->uBufferBinding);
FNPTR(VertexAttribPointer)(0, pVertexAttrib->iSize,
pVertexAttrib->eType, pVertexAttrib->bNormalized, pVertexAttrib->uStride,
pVertexAttrib->pData);
FNPTR(BindBuffer)(GL_ARRAY_BUFFER, 0);
}
if (pVertexAttrib->eType != GL_FIXED) continue;
if (pVertexAttrib->uBufferBinding != 0) {
register GLuint uBuffer = pVertexAttrib->uBufferBinding;
register struct BufferObjectUnit* pBufferObject = &CCV(pBufferObject[uBuffer]);
#if defined(USE_CONVERTED)
register GLubyte* pConverted = (GLubyte*)(pBufferObject->pConverted)
+ (GLsizei)(pVertexAttrib->pData);
FNPTR(BindBuffer)(GL_ARRAY_BUFFER, 0);
FNPTR(VertexAttribPointer)(i, pVertexAttrib->iSize, GL_FLOAT,
pVertexAttrib->bNormalized, pVertexAttrib->uStride, pConverted);
if (i == 1 && bSpecial == GL_TRUE) {
FNPTR(VertexAttribPointer)(0, pVertexAttrib->iSize, GL_FLOAT,
pVertexAttrib->bNormalized, pVertexAttrib->uStride, pConverted);
}
#else
register GLubyte* pConverted = (GLubyte*)pVertexAttrib->pData + pBufferObject->uOffset;
FNPTR(BindBuffer)(GL_ARRAY_BUFFER, uBuffer);
FNPTR(VertexAttribPointer)(i, pVertexAttrib->iSize, GL_FLOAT,
pVertexAttrib->bNormalized, pVertexAttrib->uStride, pConverted);
if (i == 1 && bSpecial == GL_TRUE) {
FNPTR(VertexAttribPointer)(0, pVertexAttrib->iSize, GL_FLOAT,
pVertexAttrib->bNormalized, pVertexAttrib->uStride, pConverted);
}
FNPTR(BindBuffer)(GL_ARRAY_BUFFER, 0);
#endif
} else {
pNewArea = realloc(pVertexAttrib->pConverted,
pVertexAttrib->iSize * count * sizeof(GLfixed));
if (pNewArea == NULL) {
ES2INTER(SetError)(GL_OUT_OF_MEMORY);
FNPTR(BindBuffer)(GL_ARRAY_BUFFER, iArrayBufferBinding);
return;
}
pVertexAttrib->pConverted = pNewArea;
pFixedBase = (GLchar*)(pVertexAttrib->pData) + first * pVertexAttrib->uStride;
pFloat = (GLfloat*)(pNewArea);
for (j = first; j < first + count; j++) {
int k = pVertexAttrib->iSize;
GLfixed* pFixed = (GLfixed*)(pFixedBase);
while (k--) {
register GLfixed xValue = *pFixed++;
register GLfloat fValue = fixed_to_float(xValue);
*pFloat++ = fValue;
}
pFixedBase += pVertexAttrib->uStride;
}
FNPTR(VertexAttribPointer)(i, pVertexAttrib->iSize, GL_FLOAT,
pVertexAttrib->bNormalized, pVertexAttrib->iSize * sizeof(GLfixed),
(GLvoid*)((GLubyte*)(pVertexAttrib->pConverted)
- first * pVertexAttrib->uStride));
if (i == 1 && bSpecial == GL_TRUE) {
FNPTR(VertexAttribPointer)(0, pVertexAttrib->iSize, GL_FLOAT,
pVertexAttrib->bNormalized, pVertexAttrib->iSize * sizeof(GLfixed),
(GLvoid*)((GLubyte*)(pVertexAttrib->pConverted)
- first * pVertexAttrib->uStride));
}
}
}
if (bSpecial == GL_TRUE) {
FNPTR(EnableVertexAttribArray)(0);
}
FNPTR(BindBuffer)(GL_ARRAY_BUFFER, iArrayBufferBinding);
FNPTR(DrawArrays)(mode, first, count);
if (bSpecial == GL_TRUE) {
FNPTR(DisableVertexAttribArray)(0);
}
}
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