#include "glheader.h"
#include "bufferobj.h"
#include "context.h"
#include "pixelstore.h"
#include "mtypes.h"
void GLAPIENTRY
_mesa_PixelStorei( GLenum pname, GLint param )
{
GET_CURRENT_CONTEXT(ctx);
ASSERT_OUTSIDE_BEGIN_END(ctx);
switch (pname) {
case GL_PACK_SWAP_BYTES:
if (param == (GLint)ctx->Pack.SwapBytes)
return;
FLUSH_VERTICES(ctx, _NEW_PACKUNPACK);
ctx->Pack.SwapBytes = param ? GL_TRUE : GL_FALSE;
break;
case GL_PACK_LSB_FIRST:
if (param == (GLint)ctx->Pack.LsbFirst)
return;
FLUSH_VERTICES(ctx, _NEW_PACKUNPACK);
ctx->Pack.LsbFirst = param ? GL_TRUE : GL_FALSE;
break;
case GL_PACK_ROW_LENGTH:
if (param<0) {
_mesa_error( ctx, GL_INVALID_VALUE, "glPixelStore(param)" );
return;
}
if (ctx->Pack.RowLength == param)
return;
FLUSH_VERTICES(ctx, _NEW_PACKUNPACK);
ctx->Pack.RowLength = param;
break;
case GL_PACK_IMAGE_HEIGHT:
if (param<0) {
_mesa_error( ctx, GL_INVALID_VALUE, "glPixelStore(param)" );
return;
}
if (ctx->Pack.ImageHeight == param)
return;
FLUSH_VERTICES(ctx, _NEW_PACKUNPACK);
ctx->Pack.ImageHeight = param;
break;
case GL_PACK_SKIP_PIXELS:
if (param<0) {
_mesa_error( ctx, GL_INVALID_VALUE, "glPixelStore(param)" );
return;
}
if (ctx->Pack.SkipPixels == param)
return;
FLUSH_VERTICES(ctx, _NEW_PACKUNPACK);
ctx->Pack.SkipPixels = param;
break;
case GL_PACK_SKIP_ROWS:
if (param<0) {
_mesa_error( ctx, GL_INVALID_VALUE, "glPixelStore(param)" );
return;
}
if (ctx->Pack.SkipRows == param)
return;
FLUSH_VERTICES(ctx, _NEW_PACKUNPACK);
ctx->Pack.SkipRows = param;
break;
case GL_PACK_SKIP_IMAGES:
if (param<0) {
_mesa_error( ctx, GL_INVALID_VALUE, "glPixelStore(param)" );
return;
}
if (ctx->Pack.SkipImages == param)
return;
FLUSH_VERTICES(ctx, _NEW_PACKUNPACK);
ctx->Pack.SkipImages = param;
break;
case GL_PACK_ALIGNMENT:
if (param!=1 && param!=2 && param!=4 && param!=8) {
_mesa_error( ctx, GL_INVALID_VALUE, "glPixelStore(param)" );
return;
}
if (ctx->Pack.Alignment == param)
return;
FLUSH_VERTICES(ctx, _NEW_PACKUNPACK);
ctx->Pack.Alignment = param;
break;
case GL_PACK_INVERT_MESA:
if (!ctx->Extensions.MESA_pack_invert) {
_mesa_error( ctx, GL_INVALID_ENUM, "glPixelstore(pname)" );
return;
}
if (ctx->Pack.Invert == param)
return;
FLUSH_VERTICES(ctx, _NEW_PACKUNPACK);
ctx->Pack.Invert = param;
break;
case GL_UNPACK_SWAP_BYTES:
if (param == (GLint)ctx->Unpack.SwapBytes)
return;
if ((GLint)ctx->Unpack.SwapBytes == param)
return;
FLUSH_VERTICES(ctx, _NEW_PACKUNPACK);
ctx->Unpack.SwapBytes = param ? GL_TRUE : GL_FALSE;
break;
case GL_UNPACK_LSB_FIRST:
if (param == (GLint)ctx->Unpack.LsbFirst)
return;
if ((GLint)ctx->Unpack.LsbFirst == param)
return;
FLUSH_VERTICES(ctx, _NEW_PACKUNPACK);
ctx->Unpack.LsbFirst = param ? GL_TRUE : GL_FALSE;
break;
case GL_UNPACK_ROW_LENGTH:
if (param<0) {
_mesa_error( ctx, GL_INVALID_VALUE, "glPixelStore(param)" );
return;
}
if (ctx->Unpack.RowLength == param)
return;
FLUSH_VERTICES(ctx, _NEW_PACKUNPACK);
ctx->Unpack.RowLength = param;
break;
case GL_UNPACK_IMAGE_HEIGHT:
if (param<0) {
_mesa_error( ctx, GL_INVALID_VALUE, "glPixelStore(param)" );
return;
}
if (ctx->Unpack.ImageHeight == param)
return;
FLUSH_VERTICES(ctx, _NEW_PACKUNPACK);
ctx->Unpack.ImageHeight = param;
break;
case GL_UNPACK_SKIP_PIXELS:
if (param<0) {
_mesa_error( ctx, GL_INVALID_VALUE, "glPixelStore(param)" );
return;
}
if (ctx->Unpack.SkipPixels == param)
return;
FLUSH_VERTICES(ctx, _NEW_PACKUNPACK);
ctx->Unpack.SkipPixels = param;
break;
case GL_UNPACK_SKIP_ROWS:
if (param<0) {
_mesa_error( ctx, GL_INVALID_VALUE, "glPixelStore(param)" );
return;
}
if (ctx->Unpack.SkipRows == param)
return;
FLUSH_VERTICES(ctx, _NEW_PACKUNPACK);
ctx->Unpack.SkipRows = param;
break;
case GL_UNPACK_SKIP_IMAGES:
if (param < 0) {
_mesa_error( ctx, GL_INVALID_VALUE, "glPixelStore(param)" );
return;
}
if (ctx->Unpack.SkipImages == param)
return;
FLUSH_VERTICES(ctx, _NEW_PACKUNPACK);
ctx->Unpack.SkipImages = param;
break;
case GL_UNPACK_ALIGNMENT:
if (param!=1 && param!=2 && param!=4 && param!=8) {
_mesa_error( ctx, GL_INVALID_VALUE, "glPixelStore" );
return;
}
if (ctx->Unpack.Alignment == param)
return;
FLUSH_VERTICES(ctx, _NEW_PACKUNPACK);
ctx->Unpack.Alignment = param;
break;
case GL_UNPACK_CLIENT_STORAGE_APPLE:
if (param == (GLint)ctx->Unpack.ClientStorage)
return;
FLUSH_VERTICES(ctx, _NEW_PACKUNPACK);
ctx->Unpack.ClientStorage = param ? GL_TRUE : GL_FALSE;
break;
default:
_mesa_error( ctx, GL_INVALID_ENUM, "glPixelStore" );
return;
}
}
void GLAPIENTRY
_mesa_PixelStoref( GLenum pname, GLfloat param )
{
_mesa_PixelStorei( pname, (GLint) param );
}
void
_mesa_init_pixelstore( GLcontext *ctx )
{
ctx->Pack.Alignment = 4;
ctx->Pack.RowLength = 0;
ctx->Pack.ImageHeight = 0;
ctx->Pack.SkipPixels = 0;
ctx->Pack.SkipRows = 0;
ctx->Pack.SkipImages = 0;
ctx->Pack.SwapBytes = GL_FALSE;
ctx->Pack.LsbFirst = GL_FALSE;
ctx->Pack.ClientStorage = GL_FALSE;
ctx->Pack.Invert = GL_FALSE;
#if FEATURE_EXT_pixel_buffer_object
_mesa_reference_buffer_object(ctx, &ctx->Pack.BufferObj,
ctx->Shared->NullBufferObj);
#endif
ctx->Unpack.Alignment = 4;
ctx->Unpack.RowLength = 0;
ctx->Unpack.ImageHeight = 0;
ctx->Unpack.SkipPixels = 0;
ctx->Unpack.SkipRows = 0;
ctx->Unpack.SkipImages = 0;
ctx->Unpack.SwapBytes = GL_FALSE;
ctx->Unpack.LsbFirst = GL_FALSE;
ctx->Unpack.ClientStorage = GL_FALSE;
ctx->Unpack.Invert = GL_FALSE;
#if FEATURE_EXT_pixel_buffer_object
_mesa_reference_buffer_object(ctx, &ctx->Unpack.BufferObj,
ctx->Shared->NullBufferObj);
#endif
ctx->DefaultPacking.Alignment = 1;
ctx->DefaultPacking.RowLength = 0;
ctx->DefaultPacking.SkipPixels = 0;
ctx->DefaultPacking.SkipRows = 0;
ctx->DefaultPacking.ImageHeight = 0;
ctx->DefaultPacking.SkipImages = 0;
ctx->DefaultPacking.SwapBytes = GL_FALSE;
ctx->DefaultPacking.LsbFirst = GL_FALSE;
ctx->DefaultPacking.ClientStorage = GL_FALSE;
ctx->DefaultPacking.Invert = GL_FALSE;
#if FEATURE_EXT_pixel_buffer_object
_mesa_reference_buffer_object(ctx, &ctx->DefaultPacking.BufferObj,
ctx->Shared->NullBufferObj);
#endif
}