KonstantinSeurer
/
mesa
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

egl: Refactor _eglInitContext. 

Refactor attribute list parsing code to _eglParseContextAttribList.  Add
a check to make sure the config supports the client API.
This commit is contained in:
Chia-I Wu 2010-01-31 12:57:53 +08:00
parent 6f1529293f
commit caa5c8dfe8
1 changed files with 95 additions and 19 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

114
src/egl/main/eglcontext.c
View File

@ -4,9 +4,96 @@
#include "eglconfig.h"
#include "eglcontext.h"
#include "egldisplay.h"
#include "egldriver.h"
#include "eglcurrent.h"
#include "eglsurface.h"
#include "egllog.h"
/**
* Return the API bit (one of EGL_xxx_BIT) of the context.
*/
static EGLint
_eglGetContextAPIBit(_EGLContext *ctx)
{
EGLint bit = 0;
switch (ctx->ClientAPI) {
case EGL_OPENGL_ES_API:
switch (ctx->ClientVersion) {
case 1:
bit = EGL_OPENGL_ES_BIT;
break;
case 2:
bit = EGL_OPENGL_ES2_BIT;
break;
default:
break;
}
break;
case EGL_OPENVG_API:
bit = EGL_OPENVG_BIT;
break;
case EGL_OPENGL_API:
bit = EGL_OPENGL_BIT;
break;
default:
break;
}
return bit;
}
/**
* Parse the list of context attributes and return the proper error code.
*/
static EGLint
_eglParseContextAttribList(_EGLContext *ctx, const EGLint *attrib_list)
{
EGLenum api = ctx->ClientAPI;
EGLint i, err = EGL_SUCCESS;
if (!attrib_list)
return EGL_SUCCESS;
for (i = 0; attrib_list[i] != EGL_NONE; i++) {
EGLint attr = attrib_list[i++];
EGLint val = attrib_list[i];
switch (attr) {
case EGL_CONTEXT_CLIENT_VERSION:
if (api != EGL_OPENGL_ES_API) {
err = EGL_BAD_ATTRIBUTE;
break;
}
if (val != 1 && val != 2) {
err = EGL_BAD_ATTRIBUTE;
break;
}
ctx->ClientVersion = val;
break;
default:
err = EGL_BAD_ATTRIBUTE;
break;
}
if (err != EGL_SUCCESS) {
_eglLog(_EGL_DEBUG, "bad context attribute 0x%04x", attr);
break;
}
}
if (err == EGL_SUCCESS) {
EGLint renderable_type, api_bit;
renderable_type = GET_CONFIG_ATTRIB(ctx->Config, EGL_RENDERABLE_TYPE);
api_bit = _eglGetContextAPIBit(ctx);
if (!(renderable_type & api_bit))
err = EGL_BAD_CONFIG;
}
return err;
}
/**
@ -17,8 +104,8 @@ EGLBoolean
_eglInitContext(_EGLDriver *drv, _EGLContext *ctx,
_EGLConfig *conf, const EGLint *attrib_list)
{
EGLint i;
const EGLenum api = eglQueryAPI();
EGLint err;
if (api == EGL_NONE) {
_eglError(EGL_BAD_MATCH, "eglCreateContext(no client API)");
@ -26,26 +113,15 @@ _eglInitContext(_EGLDriver *drv, _EGLContext *ctx,
}
memset(ctx, 0, sizeof(_EGLContext));
ctx->ClientAPI = api;
ctx->Config = conf;
ctx->WindowRenderBuffer = EGL_NONE;
ctx->ClientVersion = 1; /* the default, per EGL spec */
for (i = 0; attrib_list && attrib_list[i] != EGL_NONE; i++) {
switch (attrib_list[i]) {
case EGL_CONTEXT_CLIENT_VERSION:
i++;
ctx->ClientVersion = attrib_list[i];
break;
default:
_eglError(EGL_BAD_ATTRIBUTE, "_eglInitContext");
return EGL_FALSE;
}
}
ctx->Config = conf;
ctx->DrawSurface = EGL_NO_SURFACE;
ctx->ReadSurface = EGL_NO_SURFACE;
ctx->ClientAPI = api;
ctx->WindowRenderBuffer = EGL_NONE;
err = _eglParseContextAttribList(ctx, attrib_list);
if (err != EGL_SUCCESS)
return _eglError(err, "eglCreateContext");
return EGL_TRUE;
}