Ensure OpenGL ES 2.0 C functions use C signatures in C++ builds (fixes VS builds)
/* Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).
*
* 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
* BRIAN PAUL 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.
*
* Initial Contributors:
* Nokia Corporation - initial contribution.
*
* Contributors:
*
* Description:
*
*/
#include "common.h"
#include "hgl.h"
#include "context.h"
DGLRenderbuffer* DGLRenderbuffer_create(GLuint name)
{
DGLRenderbuffer* buffer = malloc(sizeof(DGLRenderbuffer));
if(buffer == NULL)
{
return NULL;
}
buffer->obj.name = name;
buffer->obj.next = NULL;
buffer->egl_image = NULL;
return buffer;
}
void DGLRenderbuffer_destroy(DGLRenderbuffer *buffer)
{
DGLES2_ASSERT(buffer != NULL);
if(buffer->egl_image != NULL)
{
deglUnregisterImageTarget(buffer->egl_image, GL_RENDERBUFFER, buffer->obj.name);
buffer->egl_image = NULL;
}
free(buffer);
}
GL_APICALL_BUILD void GL_APIENTRY glBindFramebuffer(GLenum target, GLuint framebuffer)
{
DGLES2_ENTER();
DGLContext_getHostError(ctx);
ctx->hgl.BindFramebufferEXT(target, framebuffer);
if(DGLContext_getHostError(ctx) == GL_NO_ERROR)
{
ctx->framebuffer_binding = framebuffer;
}
DGLES2_LEAVE();
}
GL_APICALL_BUILD void GL_APIENTRY glBindRenderbuffer(GLenum target, GLuint renderbuffer)
{
DGLES2_ENTER();
DGLContext_getHostError(ctx);
ctx->hgl.BindRenderbufferEXT(target, renderbuffer);
if(DGLContext_getHostError(ctx) == GL_NO_ERROR)
{
if(!DGLContext_bindRenderbuffer(ctx, renderbuffer))
{
DGLES2_ERROR(GL_OUT_OF_MEMORY);
}
}
DGLES2_LEAVE_NO_ERROR_CHECK();
}
GL_APICALL_BUILD GLenum GL_APIENTRY glCheckFramebufferStatus(GLenum target)
{
DGLES2_ENTER_RET(GL_FALSE);
DGLES2_LEAVE_RET(ctx->hgl.CheckFramebufferStatusEXT(target));
}
GL_APICALL_BUILD void GL_APIENTRY glDeleteFramebuffers(GLsizei n, const GLuint* framebuffers)
{
DGLES2_ENTER();
DGLContext_getHostError(ctx);
ctx->hgl.DeleteFramebuffersEXT(n, framebuffers);
if(DGLContext_getHostError(ctx) == GL_NO_ERROR)
{
// Unbind framebuffer when deleted.
int i;
for(i = 0; i < n; i++)
{
if(ctx->framebuffer_binding == framebuffers[i])
{
ctx->framebuffer_binding = 0;
break;
}
}
}
DGLES2_LEAVE_NO_ERROR_CHECK();
}
GL_APICALL_BUILD void GL_APIENTRY glDeleteRenderbuffers(GLsizei n, const GLuint* renderbuffers)
{
DGLES2_ENTER();
DGLContext_getHostError(ctx);
ctx->hgl.DeleteRenderbuffersEXT(n, renderbuffers);
if(DGLContext_getHostError(ctx) == GL_NO_ERROR)
{
int i;
for(i = 0; i < n; i++)
{
DGLContext_destroyRenderbuffer(ctx, renderbuffers[n]);
}
}
DGLES2_LEAVE();
}
GL_APICALL_BUILD void GL_APIENTRY glFramebufferRenderbuffer(GLenum target, GLenum attachment, GLenum renderbuffertarget, GLuint renderbuffer)
{
DGLES2_ENTER();
DGLES2_ERROR_IF(attachment != GL_COLOR_ATTACHMENT0 &&
attachment != GL_DEPTH_ATTACHMENT &&
attachment != GL_STENCIL_ATTACHMENT,
GL_INVALID_ENUM);
ctx->hgl.FramebufferRenderbufferEXT(target, attachment, renderbuffertarget, renderbuffer);
DGLES2_LEAVE();
}
GL_APICALL_BUILD void GL_APIENTRY glFramebufferTexture2D(GLenum target, GLenum attachment, GLenum textarget, GLuint texture, GLint level)
{
DGLES2_ENTER();
DGLES2_ERROR_IF(attachment != GL_COLOR_ATTACHMENT0 &&
attachment != GL_DEPTH_ATTACHMENT &&
attachment != GL_STENCIL_ATTACHMENT,
GL_INVALID_ENUM);
ctx->hgl.FramebufferTexture2DEXT(target, attachment, textarget, texture, level);
DGLES2_LEAVE();
}
GL_APICALL_BUILD void GL_APIENTRY glGenFramebuffers(GLsizei n, GLuint* framebuffers)
{
DGLES2_ENTER();
ctx->hgl.GenFramebuffersEXT(n, framebuffers);
DGLES2_LEAVE();
}
GL_APICALL_BUILD void GL_APIENTRY glGenRenderbuffers(GLsizei n, GLuint* renderbuffers)
{
DGLES2_ENTER();
ctx->hgl.GenRenderbuffersEXT(n, renderbuffers);
DGLES2_LEAVE();
}
GL_APICALL_BUILD void GL_APIENTRY glGetFramebufferAttachmentParameteriv(GLenum target, GLenum attachment, GLenum pname, GLint* params)
{
DGLES2_ENTER();
DGLES2_ERROR_IF(attachment != GL_COLOR_ATTACHMENT0 &&
attachment != GL_DEPTH_ATTACHMENT &&
attachment != GL_STENCIL_ATTACHMENT,
GL_INVALID_ENUM);
DGLES2_ERROR_IF(pname != GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE &&
pname != GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME &&
pname != GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_LEVEL &&
pname != GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_CUBE_MAP_FACE,
GL_INVALID_ENUM);
ctx->hgl.GetFramebufferAttachmentParameterivEXT(target, attachment, pname, params);
DGLES2_LEAVE();
}
GL_APICALL_BUILD void GL_APIENTRY glGetRenderbufferParameteriv(GLenum target, GLenum pname, GLint* params)
{
DGLES2_ENTER();
ctx->hgl.GetRenderbufferParameterivEXT(target, pname, params);
DGLES2_LEAVE();
}
GL_APICALL_BUILD GLboolean GL_APIENTRY glIsFramebuffer(GLuint framebuffer)
{
DGLES2_ENTER_RET(GL_FALSE);
ctx->hgl.IsFramebufferEXT(framebuffer);
DGLES2_LEAVE_RET(GL_FALSE);
}
GL_APICALL_BUILD GLboolean GL_APIENTRY glIsRenderbuffer(GLuint renderbuffer)
{
DGLES2_ENTER_RET(GL_FALSE);
ctx->hgl.IsRenderbufferEXT(renderbuffer);
DGLES2_LEAVE_RET(GL_FALSE);
}
GL_APICALL_BUILD void GL_APIENTRY glRenderbufferStorage(GLenum target, GLenum internalformat, GLsizei width, GLsizei height)
{
DGLES2_ENTER();
switch(internalformat)
{
case GL_DEPTH_COMPONENT16:
case GL_RGBA4:
case GL_RGB5_A1:
case GL_STENCIL_INDEX8:
break;
case GL_RGB565: // RGB565 is not supported in desktop GL.
internalformat = GL_RGB8;
break;
case GL_DEPTH_COMPONENT24_OES: // extension GL_OES_depth24
internalformat = GL_DEPTH_COMPONENT24;
break;
case GL_DEPTH_COMPONENT32_OES: // extension GL_OES_depth32
internalformat = GL_DEPTH_COMPONENT32;
break;
case GL_RGB8_OES: // extension GL_OES_rgb8_rgba8
internalformat = GL_RGB8;
break;
case GL_RGBA8_OES: // extension GL_OES_rgb8_rgba8
internalformat = GL_RGBA8;
break;
}
DGLContext_getHostError(ctx);
ctx->hgl.RenderbufferStorageEXT(target, internalformat, width, height);
if(DGLContext_getHostError(ctx) == GL_NO_ERROR)
{
DGLRenderbuffer* buffer = DGLContext_findRenderbuffer(ctx, ctx->renderbuffer_binding);
DGLES2_ASSERT(buffer != NULL);
if(buffer->egl_image != NULL)
{
// Renderbuffer is respecified. It is no longer an EGLImage sibling.
deglUnregisterImageTarget(buffer->egl_image, GL_RENDERBUFFER, buffer->obj.name);
buffer->egl_image = NULL;
}
}
DGLES2_LEAVE_NO_ERROR_CHECK();
}
GL_APICALL_BUILD void GL_APIENTRY glEGLImageTargetRenderbufferStorageOES(GLenum target, GLeglImageOES image)
{
DGLES2_ENTER();
DGLES2_ERROR_IF(target != GL_RENDERBUFFER, GL_INVALID_ENUM);
DGLES2_ERROR_IF(image == NULL, GL_INVALID_OPERATION);
DGLContext_getHostError(ctx);
if(!DGLContext_specifyRenderbufferFromEGLImage(ctx, image))
{
DGLES2_ERROR(GL_INVALID_OPERATION);
}
DGLES2_LEAVE_NO_ERROR_CHECK();
}